3.2.0 (#957)

* core: catch error when toggling notifications

* filter current members

* filter active members

.github/CODEOWNERS

@@ -0,0 +1 @@
+* @epoberezkin @jr-simplex

.github/FUNDING.yml

@@ -0,0 +1,2 @@
+github: simplex-chat
+open_collective: simplex-chat

.github/changelog_conf.json

@@ -0,0 +1,4 @@
+{
+  "template": "Commits:\n${{UNCATEGORIZED}}",
+  "pr_template": "- ${{TITLE}}"
+}

.github/workflows/build.yml

@@ -0,0 +1,127 @@
+name: build
+
+on:
+  push:
+    branches:
+      - master
+      - stable
+    tags:
+      - "v*"
+  pull_request:
+
+jobs:
+  prepare-release:
+    if: startsWith(github.ref, 'refs/tags/v')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Clone project
+        uses: actions/checkout@v2
+
+      - name: Build changelog
+        id: build_changelog
+        uses: mikepenz/release-changelog-builder-action@v1
+        with:
+          configuration: .github/changelog_conf.json
+          failOnError: true
+          ignorePreReleases: true
+          commitMode: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Create release
+        uses: softprops/action-gh-release@v1
+        with:
+          body: ${{ steps.build_changelog.outputs.changelog }}
+          prerelease: true
+          files: |
+            LICENSE
+          fail_on_unmatched_files: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  build:
+    name: build-${{ matrix.os }}
+    if: always()
+    needs: prepare-release
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-20.04
+            cache_path: ~/.stack
+            asset_name: simplex-chat-ubuntu-20_04-x86-64
+          - os: ubuntu-18.04
+            cache_path: ~/.stack
+            asset_name: simplex-chat-ubuntu-18_04-x86-64
+          - os: macos-latest
+            cache_path: ~/.stack
+            asset_name: simplex-chat-macos-x86-64
+          - os: windows-latest
+            cache_path: C:/sr
+            asset_name: simplex-chat-windows-x86-64
+    steps:
+      - name: Clone project
+        uses: actions/checkout@v2
+
+      - name: Setup Stack
+        uses: haskell/actions/setup@v1
+        with:
+          ghc-version: '8.10.7'
+          enable-stack: true
+          stack-version: 'latest'
+
+      - name: Cache dependencies
+        uses: actions/cache@v2
+        with:
+          path: ${{ matrix.cache_path }}
+          key: ${{ matrix.os }}-${{ hashFiles('stack.yaml') }}
+
+      # / Unix
+
+      - name: Unix build
+        id: unix_build
+        if: matrix.os != 'windows-latest'
+        shell: bash
+        run: |
+          stack build --test
+          echo "::set-output name=local_install_root::$(stack path --local-install-root)"
+
+      - name: Unix upload binary to release
+        if: startsWith(github.ref, 'refs/tags/v') && matrix.os != 'windows-latest'
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ steps.unix_build.outputs.local_install_root }}/bin/simplex-chat
+          asset_name: ${{ matrix.asset_name }}
+          tag: ${{ github.ref }}
+
+      # Unix /
+
+      # / Windows
+
+      # * In powershell multiline commands do not fail if individual commands fail - https://github.community/t/multiline-commands-on-windows-do-not-fail-if-individual-commands-fail/16753
+      # * And GitHub Actions does not support parameterizing shell in a matrix job - https://github.community/t/using-matrix-to-specify-shell-is-it-possible/17065
+      # * So we're running a separate set of actions for Windows build
+
+      # TODO run tests on Windows
+      - name: Windows build
+        id: windows_build
+        if: matrix.os == 'windows-latest'
+        shell: cmd
+        run: |
+          stack build
+          stack path --local-install-root > tmp_file
+          set /p local_install_root= < tmp_file
+          echo ::set-output name=local_install_root::%local_install_root%
+
+      - name: Windows upload binary to release
+        if: startsWith(github.ref, 'refs/tags/v') && matrix.os == 'windows-latest'
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ steps.windows_build.outputs.local_install_root }}\bin\simplex-chat.exe
+          asset_name: ${{ matrix.asset_name }}
+          tag: ${{ github.ref }}
+
+      # Windows /

.github/workflows/cla.yml

@@ -0,0 +1,36 @@
+name: "CLA Assistant"
+on:
+  issue_comment:
+    types: [created]
+  pull_request_target:
+    types: [opened, closed, synchronize]
+
+jobs:
+  CLAssistant:
+    runs-on: ubuntu-latest
+    steps:
+      - name: "CLA Assistant"
+        if: (github.event.comment.body == 'recheck' || github.event.comment.body == 'I have read the CLA Document and I hereby sign the CLA') || github.event_name == 'pull_request'
+        # Beta Release
+        uses: cla-assistant/github-action@v2.1.3-beta
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          # the below token should have repo scope and must be manually added by you in the repository's secret
+          PERSONAL_ACCESS_TOKEN : ${{ secrets.PERSONAL_ACCESS_TOKEN }}
+        with:
+          path-to-signatures: 'signatures/v1.1/cla.json'
+          path-to-document: 'https://github.com/simplex-chat/cla/blob/master/CLA.md'
+          # branch should not be protected
+          remote-organization-name: simplex-chat
+          remote-repository-name: cla
+          branch: 'master'
+          # allowlist: user1,bot*
+
+         #below are the optional inputs - If the optional inputs are not given, then default values will be taken
+          #create-file-commit-message: 'For example: Creating file for storing CLA Signatures'
+          #signed-commit-message: 'For example: $contributorName has signed the CLA in #$pullRequestNo'
+          #custom-notsigned-prcomment: 'pull request comment with Introductory message to ask new contributors to sign'
+          #custom-pr-sign-comment: 'The signature to be committed in order to sign the CLA'
+          #custom-allsigned-prcomment: 'pull request comment when all contributors has signed, defaults to **CLA Assistant Lite bot** All Contributors have signed the CLA.'
+          #lock-pullrequest-aftermerge: false - if you don't want this bot to automatically lock the pull request after merging (default - true)
+          #use-dco-flag: true - If you are using DCO instead of CLA

.gitignore

@@ -0,0 +1,45 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+.DS_Store
+
+# Haskell
+dist
+dist-*
+cabal-dev
+*.o
+*.hi
+*.hie
+*.chi
+*.chs.h
+*.dyn_o
+*.dyn_hi
+.hpc
+.hsenv
+.cabal-sandbox/
+cabal.sandbox.config
+*.prof
+*.aux
+*.hp
+*.eventlog
+.stack-work/
+cabal.project.local
+cabal.project.local~
+.HTF/
+.ghc.environment.*
+stack.yaml.lock
+
+# Chat database
+*.db
+*.db.bak
+
+# Temporary test files
+tests/tmp
+logs/

ChatOptions.hs

@@ -1,79 +0,0 @@
-{-# LANGUAGE LambdaCase #-}
-
-module ChatOptions (getChatOpts, ChatOpts (..)) where
-
-import qualified Data.Attoparsec.ByteString.Char8 as A
-import Data.ByteString.Char8 (ByteString)
-import qualified Data.ByteString.Char8 as B
-import Options.Applicative
-import Simplex.Messaging.Agent.Transmission (SMPServer (..), smpServerP)
-import System.FilePath (combine)
-import System.Info (os)
-import Types
-
-data ChatOpts = ChatOpts
-  { name :: Maybe ByteString,
-    dbFileName :: String,
-    smpServer :: SMPServer,
-    termMode :: TermMode
-  }
-
-chatOpts :: FilePath -> Parser ChatOpts
-chatOpts appDir =
-  ChatOpts
-    <$> option
-      (Just <$> str)
-      ( long "name"
-          <> short 'n'
-          <> metavar "NAME"
-          <> help "optional name to use for invitations"
-          <> value Nothing
-      )
-    <*> strOption
-      ( long "database"
-          <> short 'd'
-          <> metavar "DB_FILE"
-          <> help ("sqlite database file path (" <> defaultDbFilePath <> ")")
-          <> value defaultDbFilePath
-      )
-    <*> option
-      parseSMPServer
-      ( long "server"
-          <> short 's'
-          <> metavar "SERVER"
-          <> help "SMP server to use (smp.simplex.im:5223)"
-          <> value (SMPServer "smp.simplex.im" (Just "5223") Nothing)
-      )
-    <*> option
-      parseTermMode
-      ( long "term"
-          <> short 't'
-          <> metavar "TERM"
-          <> help ("terminal mode: editor or basic (" <> termModeName deafultTermMode <> ")")
-          <> value deafultTermMode
-      )
-  where
-    defaultDbFilePath = combine appDir "smp-chat.db"
-    deafultTermMode
-      | os == "mingw32" = TermModeBasic
-      | otherwise = TermModeEditor
-
-parseSMPServer :: ReadM SMPServer
-parseSMPServer = eitherReader $ A.parseOnly (smpServerP <* A.endOfInput) . B.pack
-
-parseTermMode :: ReadM TermMode
-parseTermMode = maybeReader $ \case
-  "basic" -> Just TermModeBasic
-  "editor" -> Just TermModeEditor
-  _ -> Nothing
-
-getChatOpts :: FilePath -> IO ChatOpts
-getChatOpts appDir = execParser opts
-  where
-    opts =
-      info
-        (chatOpts appDir <**> helper)
-        ( fullDesc
-            <> header "Chat prototype using Simplex Messaging Protocol (SMP)"
-            <> progDesc "Start chat with DB_FILE file and use SERVER as SMP server"
-        )

ChatTerminal.hs

@@ -1,105 +0,0 @@
-{-# LANGUAGE CPP #-}
-{-# LANGUAGE LambdaCase #-}
-{-# LANGUAGE NamedFieldPuns #-}
-{-# LANGUAGE OverloadedStrings #-}
-
-module ChatTerminal
-  ( ChatTerminal (..),
-    newChatTerminal,
-    chatTerminal,
-    updateUsername,
-    ttyContact,
-    ttyFromContact,
-  )
-where
-
-import ChatTerminal.Basic (getLn, putLn)
-import ChatTerminal.Core
-import ChatTerminal.POSIX
-import Control.Concurrent (threadDelay)
-import Control.Concurrent.Async (race_)
-import Control.Concurrent.STM
-import Control.Monad
-import Data.Maybe (fromMaybe)
-import Numeric.Natural
-import Styled
-import qualified System.Console.ANSI as C
-import Types
-
-newChatTerminal :: Natural -> Maybe Contact -> TermMode -> IO ChatTerminal
-newChatTerminal qSize user termMode = do
-  inputQ <- newTBQueueIO qSize
-  outputQ <- newTBQueueIO qSize
-  activeContact <- newTVarIO Nothing
-  username <- newTVarIO user
-  termSize <- fromMaybe (0, 0) <$> C.getTerminalSize
-  let lastRow = fst termSize - 1
-  termState <- newTVarIO $ newTermState user
-  termLock <- newTMVarIO ()
-  nextMessageRow <- newTVarIO lastRow
-  threadDelay 500000 -- this delay is the same as timeout in getTerminalSize
-  return ChatTerminal {inputQ, outputQ, activeContact, username, termMode, termState, termSize, nextMessageRow, termLock}
-
-newTermState :: Maybe Contact -> TerminalState
-newTermState user =
-  TerminalState
-    { inputString = "",
-      inputPosition = 0,
-      inputPrompt = promptString user
-    }
-
-chatTerminal :: ChatTerminal -> IO ()
-chatTerminal ct
-  | termSize ct == (0, 0) || termMode ct == TermModeBasic =
-    run basicReceiveFromTTY basicSendToTTY
-  | otherwise = do
-    initTTY
-    updateInput ct
-    run receiveFromTTY sendToTTY
-  where
-    run receive send = race_ (receive ct) (send ct)
-
-basicReceiveFromTTY :: ChatTerminal -> IO ()
-basicReceiveFromTTY ct =
-  forever $ getLn >>= atomically . writeTBQueue (inputQ ct)
-
-basicSendToTTY :: ChatTerminal -> IO ()
-basicSendToTTY ct = forever $ readOutputQ ct >>= putLn
-
-withTermLock :: ChatTerminal -> IO () -> IO ()
-withTermLock ChatTerminal {termLock} action = do
-  _ <- atomically $ takeTMVar termLock
-  action
-  atomically $ putTMVar termLock ()
-
-receiveFromTTY :: ChatTerminal -> IO ()
-receiveFromTTY ct@ChatTerminal {inputQ, activeContact, termSize, termState} =
-  forever $
-    getKey >>= processKey >> withTermLock ct (updateInput ct)
-  where
-    processKey :: Key -> IO ()
-    processKey = \case
-      KeyEnter -> submitInput
-      key -> atomically $ do
-        ac <- readTVar activeContact
-        modifyTVar termState $ updateTermState ac (snd termSize) key
-
-    submitInput :: IO ()
-    submitInput = do
-      msg <- atomically $ do
-        ts <- readTVar termState
-        writeTVar termState $ ts {inputString = "", inputPosition = 0}
-        let s = inputString ts
-        writeTBQueue inputQ s
-        return s
-      withTermLock ct . printMessage ct $ styleMessage msg
-
-sendToTTY :: ChatTerminal -> IO ()
-sendToTTY ct = forever $ do
-  msg <- readOutputQ ct
-  withTermLock ct $ do
-    printMessage ct msg
-    updateInput ct
-
-readOutputQ :: ChatTerminal -> IO StyledString
-readOutputQ = atomically . readTBQueue . outputQ

ChatTerminal/Basic.hs

@@ -1,81 +0,0 @@
-{-# LANGUAGE LambdaCase #-}
-
-module ChatTerminal.Basic where
-
-import Control.Monad.IO.Class (liftIO)
-import Styled
-import System.Console.ANSI.Types
-import System.Exit (exitSuccess)
-import System.Terminal as C
-
-getLn :: IO String
-getLn = withTerminal $ runTerminalT getTermLine
-
-putLn :: StyledString -> IO ()
-putLn s =
-  withTerminal . runTerminalT $
-    putStyled s >> C.putLn >> flush
-
-putStyled :: MonadTerminal m => StyledString -> m ()
-putStyled (s1 :<>: s2) = putStyled s1 >> putStyled s2
-putStyled (Styled [] s) = putString s
-putStyled (Styled sgr s) = setSGR sgr >> putString s >> resetAttributes
-
-setSGR :: MonadTerminal m => [SGR] -> m ()
-setSGR = mapM_ $ \case
-  Reset -> resetAttributes
-  SetConsoleIntensity BoldIntensity -> setAttribute bold
-  SetConsoleIntensity _ -> resetAttribute bold
-  SetItalicized True -> setAttribute italic
-  SetItalicized _ -> resetAttribute italic
-  SetUnderlining NoUnderline -> resetAttribute underlined
-  SetUnderlining _ -> setAttribute underlined
-  SetSwapForegroundBackground True -> setAttribute inverted
-  SetSwapForegroundBackground _ -> resetAttribute inverted
-  SetColor l i c -> setAttribute . layer l . intensity i $ color c
-  SetBlinkSpeed _ -> pure ()
-  SetVisible _ -> pure ()
-  SetRGBColor _ _ -> pure ()
-  SetPaletteColor _ _ -> pure ()
-  SetDefaultColor _ -> pure ()
-  where
-    layer = \case
-      Foreground -> foreground
-      Background -> background
-    intensity = \case
-      Dull -> id
-      Vivid -> bright
-    color = \case
-      Black -> black
-      Red -> red
-      Green -> green
-      Yellow -> yellow
-      Blue -> blue
-      Magenta -> magenta
-      Cyan -> cyan
-      White -> white
-
-getTermLine :: MonadTerminal m => m String
-getTermLine = getChars ""
-  where
-    getChars s = awaitEvent >>= processKey s
-    processKey s = \case
-      Right (KeyEvent key ms) -> case key of
-        CharKey c
-          | ms == mempty || ms == shiftKey -> do
-            C.putChar c
-            flush
-            getChars (c : s)
-          | otherwise -> getChars s
-        EnterKey -> do
-          C.putLn
-          flush
-          pure $ reverse s
-        BackspaceKey -> do
-          moveCursorBackward 1
-          eraseChars 1
-          flush
-          getChars $ if null s then s else tail s
-        _ -> getChars s
-      Left Interrupt -> liftIO exitSuccess
-      _ -> getChars s

ChatTerminal/Core.hs

@@ -1,130 +0,0 @@
-{-# LANGUAGE LambdaCase #-}
-{-# LANGUAGE OverloadedStrings #-}
-
-module ChatTerminal.Core where
-
-import Control.Concurrent.STM
-import qualified Data.ByteString.Char8 as B
-import Data.List (dropWhileEnd)
-import qualified Data.Text as T
-import SimplexMarkdown
-import Styled
-import System.Console.ANSI.Types
-import Types
-
-data ChatTerminal = ChatTerminal
-  { inputQ :: TBQueue String,
-    outputQ :: TBQueue StyledString,
-    activeContact :: TVar (Maybe Contact),
-    username :: TVar (Maybe Contact),
-    termMode :: TermMode,
-    termState :: TVar TerminalState,
-    termSize :: (Int, Int),
-    nextMessageRow :: TVar Int,
-    termLock :: TMVar ()
-  }
-
-data TerminalState = TerminalState
-  { inputPrompt :: String,
-    inputString :: String,
-    inputPosition :: Int
-  }
-
-data Key
-  = KeyLeft
-  | KeyRight
-  | KeyUp
-  | KeyDown
-  | KeyAltLeft
-  | KeyAltRight
-  | KeyCtrlLeft
-  | KeyCtrlRight
-  | KeyShiftLeft
-  | KeyShiftRight
-  | KeyEnter
-  | KeyBack
-  | KeyTab
-  | KeyEsc
-  | KeyChars String
-  | KeyUnsupported
-  deriving (Eq)
-
-inputHeight :: TerminalState -> ChatTerminal -> Int
-inputHeight ts ct = length (inputPrompt ts <> inputString ts) `div` snd (termSize ct) + 1
-
-updateTermState :: Maybe Contact -> Int -> Key -> TerminalState -> TerminalState
-updateTermState ac tw key ts@TerminalState {inputString = s, inputPosition = p} = case key of
-  KeyChars cs -> insertCharsWithContact cs
-  KeyTab -> insertChars "    "
-  KeyBack -> backDeleteChar
-  KeyLeft -> setPosition $ max 0 (p - 1)
-  KeyRight -> setPosition $ min (length s) (p + 1)
-  KeyUp -> setPosition $ let p' = p - tw in if p' > 0 then p' else p
-  KeyDown -> setPosition $ let p' = p + tw in if p' <= length s then p' else p
-  KeyAltLeft -> setPosition prevWordPos
-  KeyAltRight -> setPosition nextWordPos
-  KeyCtrlLeft -> setPosition prevWordPos
-  KeyCtrlRight -> setPosition nextWordPos
-  KeyShiftLeft -> setPosition 0
-  KeyShiftRight -> setPosition $ length s
-  _ -> ts
-  where
-    insertCharsWithContact cs
-      | null s && cs /= "@" && cs /= "/" =
-        insertChars $ contactPrefix <> cs
-      | otherwise = insertChars cs
-    insertChars = ts' . if p >= length s then append else insert
-    append cs = let s' = s <> cs in (s', length s')
-    insert cs = let (b, a) = splitAt p s in (b <> cs <> a, p + length cs)
-    contactPrefix = case ac of
-      Just (Contact c) -> "@" <> B.unpack c <> " "
-      Nothing -> ""
-    backDeleteChar
-      | p == 0 || null s = ts
-      | p >= length s = ts' backDeleteLast
-      | otherwise = ts' backDelete
-    backDeleteLast = if null s then (s, 0) else let s' = init s in (s', length s')
-    backDelete = let (b, a) = splitAt p s in (init b <> a, p - 1)
-    setPosition p' = ts' (s, p')
-    prevWordPos
-      | p == 0 || null s = p
-      | otherwise =
-        let before = take p s
-            beforeWord = dropWhileEnd (/= ' ') $ dropWhileEnd (== ' ') before
-         in max 0 $ p - length before + length beforeWord
-    nextWordPos
-      | p >= length s || null s = p
-      | otherwise =
-        let after = drop p s
-            afterWord = dropWhile (/= ' ') $ dropWhile (== ' ') after
-         in min (length s) $ p + length after - length afterWord
-    ts' (s', p') = ts {inputString = s', inputPosition = p'}
-
-styleMessage :: String -> StyledString
-styleMessage = \case
-  "" -> ""
-  s@('@' : _) -> let (c, rest) = span (/= ' ') s in Styled selfSGR c <> markdown rest
-  s -> markdown s
-  where
-    markdown :: String -> StyledString
-    markdown = styleMarkdown . parseMarkdown . T.pack
-
-updateUsername :: ChatTerminal -> Maybe Contact -> STM ()
-updateUsername ct a = do
-  writeTVar (username ct) a
-  modifyTVar (termState ct) $ \ts -> ts {inputPrompt = promptString a}
-
-promptString :: Maybe Contact -> String
-promptString a = maybe "" (B.unpack . toBs) a <> "> "
-
-ttyContact :: Contact -> StyledString
-ttyContact (Contact a) = Styled contactSGR $ B.unpack a
-
-ttyFromContact :: Contact -> StyledString
-ttyFromContact (Contact a) = Styled contactSGR $ B.unpack a <> ">"
-
-contactSGR :: [SGR]
-contactSGR = [SetColor Foreground Vivid Yellow]
-
-selfSGR :: [SGR]
-selfSGR = [SetColor Foreground Vivid Cyan]

ChatTerminal/POSIX.hs

@@ -1,102 +0,0 @@
-{-# LANGUAGE LambdaCase #-}
-{-# LANGUAGE NamedFieldPuns #-}
-
-module ChatTerminal.POSIX where
-
-import ChatTerminal.Core
-import Control.Concurrent.STM
-import Styled
-import qualified System.Console.ANSI as C
-import System.IO
-
-initTTY :: IO ()
-initTTY = do
-  hSetEcho stdin False
-  hSetBuffering stdin NoBuffering
-  hSetBuffering stdout NoBuffering
-
-updateInput :: ChatTerminal -> IO ()
-updateInput ct@ChatTerminal {termSize, termState, nextMessageRow} = do
-  C.hideCursor
-  ts <- readTVarIO termState
-  nmr <- readTVarIO nextMessageRow
-  let (th, tw) = termSize
-      ih = inputHeight ts ct
-      iStart = th - ih
-      prompt = inputPrompt ts
-      (cRow, cCol) = relativeCursorPosition tw $ length prompt + inputPosition ts
-  if nmr >= iStart
-    then atomically $ writeTVar nextMessageRow iStart
-    else clearLines nmr iStart
-  C.setCursorPosition (max nmr iStart) 0
-  putStr $ prompt <> inputString ts <> " "
-  C.clearFromCursorToLineEnd
-  C.setCursorPosition (iStart + cRow) cCol
-  C.showCursor
-  where
-    clearLines :: Int -> Int -> IO ()
-    clearLines from till
-      | from >= till = return ()
-      | otherwise = do
-        C.setCursorPosition from 0
-        C.clearFromCursorToLineEnd
-        clearLines (from + 1) till
-
-    relativeCursorPosition :: Int -> Int -> (Int, Int)
-    relativeCursorPosition width pos =
-      let row = pos `div` width
-          col = pos - row * width
-       in (row, col)
-
-printMessage :: ChatTerminal -> StyledString -> IO ()
-printMessage ChatTerminal {termSize, nextMessageRow} msg = do
-  nmr <- readTVarIO nextMessageRow
-  C.setCursorPosition nmr 0
-  let (th, tw) = termSize
-  lc <- printLines tw msg
-  atomically . writeTVar nextMessageRow $ min (th - 1) (nmr + lc)
-  where
-    printLines :: Int -> StyledString -> IO Int
-    printLines tw ss = do
-      let s = styledToANSITerm ss
-          ls
-            | null s = [""]
-            | otherwise = lines s <> ["" | last s == '\n']
-      print_ ls
-      return $ foldl (\lc l -> lc + (length l `div` tw) + 1) 0 ls
-
-    print_ :: [String] -> IO ()
-    print_ [] = return ()
-    print_ (l : ls) = do
-      putStr l
-      C.clearFromCursorToLineEnd
-      putStr "\n"
-      print_ ls
-
-getKey :: IO Key
-getKey = charsToKey . reverse <$> keyChars ""
-  where
-    charsToKey = \case
-      "\ESC" -> KeyEsc
-      "\ESC[A" -> KeyUp
-      "\ESC[B" -> KeyDown
-      "\ESC[D" -> KeyLeft
-      "\ESC[C" -> KeyRight
-      "\ESCb" -> KeyAltLeft
-      "\ESCf" -> KeyAltRight
-      "\ESC[1;5D" -> KeyCtrlLeft
-      "\ESC[1;5C" -> KeyCtrlRight
-      "\ESC[1;2D" -> KeyShiftLeft
-      "\ESC[1;2C" -> KeyShiftRight
-      "\n" -> KeyEnter
-      "\DEL" -> KeyBack
-      "\t" -> KeyTab
-      '\ESC' : _ -> KeyUnsupported
-      cs -> KeyChars cs
-
-    keyChars cs = do
-      c <- getChar
-      more <- hReady stdin
-      -- for debugging - uncomment this, comment line after:
-      -- (if more then keyChars else \c' -> print (reverse c') >> return c') (c : cs)
-      (if more then keyChars else return) (c : cs)

Dockerfile

@@ -0,0 +1,10 @@
+FROM haskell:8.10.4 AS build-stage
+# if you encounter "version `GLIBC_2.28' not found" error when running
+# chat client executable, build with the following base image instead:
+# FROM haskell:8.10.4-stretch AS build-stage
+COPY . /project
+WORKDIR /project
+RUN stack install
+
+FROM scratch AS export-stage
+COPY --from=build-stage /root/.local/bin/simplex-chat /

LICENSE

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
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+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

Main.hs

@@ -1,250 +0,0 @@
-{-# LANGUAGE DataKinds #-}
-{-# LANGUAGE DuplicateRecordFields #-}
-{-# LANGUAGE FlexibleContexts #-}
-{-# LANGUAGE GADTs #-}
-{-# LANGUAGE LambdaCase #-}
-{-# LANGUAGE NamedFieldPuns #-}
-{-# LANGUAGE OverloadedStrings #-}
-{-# LANGUAGE ScopedTypeVariables #-}
-
-module Main where
-
-import ChatOptions
-import ChatTerminal
-import Control.Applicative ((<|>))
-import Control.Concurrent.STM
-import Control.Logger.Simple
-import Control.Monad.Reader
-import Data.Attoparsec.ByteString.Char8 (Parser)
-import qualified Data.Attoparsec.ByteString.Char8 as A
-import Data.ByteString.Char8 (ByteString)
-import qualified Data.ByteString.Char8 as B
-import Data.Functor (($>))
-import qualified Data.Text as T
-import Data.Text.Encoding
-import Numeric.Natural
-import Simplex.Messaging.Agent (getSMPAgentClient, runSMPAgentClient)
-import Simplex.Messaging.Agent.Client (AgentClient (..))
-import Simplex.Messaging.Agent.Env.SQLite
-import Simplex.Messaging.Agent.Transmission
-import Simplex.Messaging.Client (smpDefaultConfig)
-import Simplex.Messaging.Util (raceAny_)
-import SimplexMarkdown
-import Styled
-import System.Directory (getAppUserDataDirectory)
-import System.Exit (exitFailure)
-import System.Info (os)
-import Types
-
-cfg :: AgentConfig
-cfg =
-  AgentConfig
-    { tcpPort = undefined, -- TODO maybe take it out of config
-      rsaKeySize = 2048 `div` 8,
-      connIdBytes = 12,
-      tbqSize = 16,
-      dbFile = "smp-chat.db",
-      smpCfg = smpDefaultConfig
-    }
-
-logCfg :: LogConfig
-logCfg = LogConfig {lc_file = Nothing, lc_stderr = True}
-
-data ChatClient = ChatClient
-  { inQ :: TBQueue ChatCommand,
-    outQ :: TBQueue ChatResponse,
-    smpServer :: SMPServer,
-    username :: TVar (Maybe Contact)
-  }
-
--- | GroupMessage ChatGroup ByteString
--- | AddToGroup Contact
-data ChatCommand
-  = ChatHelp
-  | AddContact Contact
-  | AcceptContact Contact SMPQueueInfo
-  | ChatWith Contact
-  | SetName Contact
-  | SendMessage Contact ByteString
-
-chatCommandP :: Parser ChatCommand
-chatCommandP =
-  "/help" $> ChatHelp
-    <|> "/add " *> (AddContact <$> contact)
-    <|> "/accept " *> acceptContact
-    <|> "/chat " *> chatWith
-    <|> "/name " *> setName
-    <|> "@" *> sendMessage
-  where
-    acceptContact = AcceptContact <$> contact <* A.space <*> smpQueueInfoP
-    chatWith = ChatWith <$> contact
-    setName = SetName <$> contact
-    sendMessage = SendMessage <$> contact <* A.space <*> A.takeByteString
-    contact = Contact <$> A.takeTill (== ' ')
-
-data ChatResponse
-  = ChatHelpInfo
-  | Invitation SMPQueueInfo
-  | Connected Contact
-  | ReceivedMessage Contact ByteString
-  | Disconnected Contact
-  | YesYes
-  | ErrorInput ByteString
-  | ChatError AgentErrorType
-  | NoChatResponse
-
-serializeChatResponse :: Maybe Contact -> ChatResponse -> StyledString
-serializeChatResponse name = \case
-  ChatHelpInfo -> chatHelpInfo
-  Invitation qInfo -> "ask your contact to enter: /accept " <> showName name <> " " <> (bPlain . serializeSmpQueueInfo) qInfo
-  Connected c -> ttyContact c <> " connected"
-  ReceivedMessage c t -> ttyFromContact c <> " " <> msgPlain t
-  Disconnected c -> "disconnected from " <> ttyContact c <> " - try \"/chat " <> bPlain (toBs c) <> "\""
-  YesYes -> "you got it!"
-  ErrorInput t -> "invalid input: " <> bPlain t
-  ChatError e -> "chat error: " <> plain (show e)
-  NoChatResponse -> ""
-  where
-    showName Nothing = "<your name>"
-    showName (Just (Contact a)) = bPlain a
-    msgPlain = styleMarkdown . parseMarkdown . decodeUtf8With onError
-    onError _ _ = Just '?'
-
-chatHelpInfo :: StyledString
-chatHelpInfo =
-  "Using chat:\n\
-  \/add <name>       - create invitation to send out-of-band\n\
-  \                    to your contact <name>\n\
-  \                    (any unique string without spaces)\n\
-  \/accept <name> <invitation> - accept <invitation>\n\
-  \                    (a string that starts from \"smp::\")\n\
-  \                    from your contact <name>\n\
-  \/name <name>      - set <name> to use in invitations\n\
-  \@<name> <message> - send <message> (any string) to contact <name>\n\
-  \                    @<name> can be omitted to send to previous"
-
-main :: IO ()
-main = do
-  ChatOpts {dbFileName, smpServer, name, termMode} <- welcomeGetOpts
-  let user = Contact <$> name
-  t <- getChatClient smpServer user
-  ct <- newChatTerminal (tbqSize cfg) user termMode
-  -- setLogLevel LogInfo -- LogError
-  -- withGlobalLogging logCfg $
-  env <- newSMPAgentEnv cfg {dbFile = dbFileName}
-  dogFoodChat t ct env
-
-welcomeGetOpts :: IO ChatOpts
-welcomeGetOpts = do
-  appDir <- getAppUserDataDirectory "simplex"
-  opts@ChatOpts {dbFileName, termMode} <- getChatOpts appDir
-  putStrLn "simpleX chat prototype"
-  putStrLn $ "db: " <> dbFileName
-  when (os == "mingw32") $ windowsWarning termMode
-  putStrLn "type \"/help\" for usage information"
-  pure opts
-
-windowsWarning :: TermMode -> IO ()
-windowsWarning = \case
-  m@TermModeBasic -> do
-    putStrLn $ "running in Windows (terminal mode is " <> termModeName m <> ", no utf8 support)"
-    putStrLn "it is recommended to use Windows Subsystem for Linux (WSL)"
-  m -> do
-    putStrLn $ "running in Windows, terminal mode " <> termModeName m <> " is not supported"
-    exitFailure
-
-dogFoodChat :: ChatClient -> ChatTerminal -> Env -> IO ()
-dogFoodChat t ct env = do
-  c <- runReaderT getSMPAgentClient env
-  raceAny_
-    [ runReaderT (runSMPAgentClient c) env,
-      sendToAgent t ct c,
-      sendToChatTerm t ct,
-      receiveFromAgent t ct c,
-      receiveFromChatTerm t ct,
-      chatTerminal ct
-    ]
-
-getChatClient :: SMPServer -> Maybe Contact -> IO ChatClient
-getChatClient srv name = atomically $ newChatClient (tbqSize cfg) srv name
-
-newChatClient :: Natural -> SMPServer -> Maybe Contact -> STM ChatClient
-newChatClient qSize smpServer name = do
-  inQ <- newTBQueue qSize
-  outQ <- newTBQueue qSize
-  username <- newTVar name
-  return ChatClient {inQ, outQ, smpServer, username}
-
-receiveFromChatTerm :: ChatClient -> ChatTerminal -> IO ()
-receiveFromChatTerm t ct = forever $ do
-  atomically (readTBQueue $ inputQ ct)
-    >>= processOrError . A.parseOnly (chatCommandP <* A.endOfInput) . encodeUtf8 . T.pack
-  where
-    processOrError = \case
-      Left err -> atomically . writeTBQueue (outQ t) . ErrorInput $ B.pack err
-      Right ChatHelp -> atomically . writeTBQueue (outQ t) $ ChatHelpInfo
-      Right (SetName a) -> atomically $ do
-        let user = Just a
-        writeTVar (username (t :: ChatClient)) user
-        updateUsername ct user
-        writeTBQueue (outQ t) YesYes
-      Right cmd -> atomically $ writeTBQueue (inQ t) cmd
-
-sendToChatTerm :: ChatClient -> ChatTerminal -> IO ()
-sendToChatTerm ChatClient {outQ, username} ChatTerminal {outputQ} = forever $ do
-  atomically (readTBQueue outQ) >>= \case
-    NoChatResponse -> return ()
-    resp -> do
-      name <- readTVarIO username
-      atomically . writeTBQueue outputQ $ serializeChatResponse name resp
-
-sendToAgent :: ChatClient -> ChatTerminal -> AgentClient -> IO ()
-sendToAgent ChatClient {inQ, smpServer} ct AgentClient {rcvQ} = do
-  atomically $ writeTBQueue rcvQ ("1", "", SUBALL) -- hack for subscribing to all
-  forever . atomically $ do
-    cmd <- readTBQueue inQ
-    writeTBQueue rcvQ `mapM_` agentTransmission cmd
-    setActiveContact cmd
-  where
-    setActiveContact :: ChatCommand -> STM ()
-    setActiveContact cmd =
-      writeTVar (activeContact ct) $ case cmd of
-        ChatWith a -> Just a
-        SendMessage a _ -> Just a
-        _ -> Nothing
-    agentTransmission :: ChatCommand -> Maybe (ATransmission 'Client)
-    agentTransmission = \case
-      AddContact a -> transmission a $ NEW smpServer
-      AcceptContact a qInfo -> transmission a $ JOIN qInfo $ ReplyVia smpServer
-      ChatWith a -> transmission a SUB
-      SendMessage a msg -> transmission a $ SEND msg
-      ChatHelp -> Nothing
-      SetName _ -> Nothing
-    transmission :: Contact -> ACommand 'Client -> Maybe (ATransmission 'Client)
-    transmission (Contact a) cmd = Just ("1", a, cmd)
-
-receiveFromAgent :: ChatClient -> ChatTerminal -> AgentClient -> IO ()
-receiveFromAgent t ct c = forever . atomically $ do
-  resp <- chatResponse <$> readTBQueue (sndQ c)
-  writeTBQueue (outQ t) resp
-  setActiveContact resp
-  where
-    chatResponse :: ATransmission 'Agent -> ChatResponse
-    chatResponse (_, a, resp) = case resp of
-      INV qInfo -> Invitation qInfo
-      CON -> Connected contact
-      END -> Disconnected contact
-      MSG {m_body} -> ReceivedMessage contact m_body
-      SENT _ -> NoChatResponse
-      OK -> Connected contact -- hack for subscribing to all
-      ERR e -> ChatError e
-      where
-        contact = Contact a
-    setActiveContact :: ChatResponse -> STM ()
-    setActiveContact = \case
-      Connected a -> set $ Just a
-      ReceivedMessage a _ -> set $ Just a
-      Disconnected _ -> set Nothing
-      _ -> return ()
-      where
-        set a = writeTVar (activeContact ct) a

PRIVACY.md

@@ -0,0 +1,90 @@
+# SimpleX Chat Terms & Privacy Policy
+
+SimpleX Chat is the first chat platform that is 100% private by design - not only it has no access to your messages (thanks to open-source double-ratchet end-to-end encryption protocol and additional encryption layers), it also has no access to your profile and contacts - we do not have access to your connections graph.
+
+## Privacy Policy
+
+SimpleX Chat Ltd. ("SimpleX Chat") uses the best industry practices for security and end-to-end encryption to provide secure end-to-end encrypted messaging via private connections. SimpleX Chat is built on top of SimpleX messaging and application platform that uses a new message routing protocol that allows establishing private connection without having any kind of addresses that identify its users - we don't use emails, phone numbers, usernames, identity keys or any other user identifiers to pass messages between the users.
+
+### Information you provide
+
+We do not store user profiles. The profile you create in the app is local to your device. When you create a user profile, no records are created on our servers, and we have no access to any part of your profile information, and even to the fact that you created a profile - it is a local record stored only on your device. That means that if you delete the app, and have no backup, you will permanently lose all the data and the private connections you create with other users.
+
+Messages. SimpleX Chat cannot decrypt or otherwise access the content or size of your messages (each message is padded to a fixed size of 16kb). SimpleX Chat temporarily stores end-to-end encrypted messages on its servers for delivery to the devices that are temporarily offline. Your message history is stored only on your own devices.
+
+Connections with other users. When you create a connection with another user, two messaging queues are created on our servers (we use separate queues for direct and response messages, that can be on two different servers), or on the servers that you configured in the app, in case it allows such configuration. At the time of updating this document only our terminal app allows configuring the servers, our mobile apps will allow such configuration in the near future. Our servers do not store information about which queues are linked to your profile on the device, and they do not have any information in common that allow us to establish that these queues are related to your device or your profile - the access to each queue is authorized by a set of unique encryption keys, different for each queue, and separate for sender and recipient of the messages that are transmitted through the queue.
+
+Additional technical information can be stored on our servers, including randomly generated authentication tokens, keys, push tokens, and other material that is necessary to transmit messages. SimpleX Chat limits this additional technical information to the minimum required to operate the Services.
+
+User Support. If you contact SimpleX Chat any personal data you may share with us is kept only for the purposes of researching the issue and contacting you about your case. We recommend contacting support via chat, when it is possible.
+
+### Information we may share
+
+We operate our Services using third parties. While we do not share any user data, these third party may access the encrypted user data as it is stored or transmitted via our servers.
+
+We use Third party to provide email services - if you ask for support via email, your and SimpleX Chat email providers may access these emails according their privacy policies and terms of service.
+
+The cases when SimpleX Chat may need to share the data we temporarily store on the servers:
+
+- To meet any applicable law, regulation, legal process or enforceable governmental request.
+- To enforce applicable Terms, including investigation of potential violations.
+- To detect, prevent, or otherwise address fraud, security, or technical issues.
+- To protect against harm to the rights, property, or safety of SimpleX Chat, our users, or the public as required or permitted by law.
+
+### Updates
+
+We will update this privacy policy as needed so that it is current, accurate, and as clear as possible. Your continued use of our Services confirms your acceptance of our updated Privacy Policy.
+
+Please also read our Terms of Service.
+
+If you have questions about our Privacy Policy please contact us at chat@simplex.chat.
+
+## Terms of Service
+
+You accept to our Terms of Service ("Terms") by installing or using any of our apps or services ("Services").
+
+**Minimal age**. You must be at least 13 years old to use our Services. The minimum age to use our Services without parental approval may be higher in your country.
+
+**Accessing the servers**. For the efficiency of the network access, the apps access all queues you create on any server via the same network (TCP/IP) connection. Our servers do not collect information about which queues were accessed via the same connection, so we do cannot establish which queues belong to the same users. Whoever might observe your network traffic would know which servers you use, and how much data you send, but not to whom it is sent - the data that leaves the servers is always different from the data they receive - there are no identifiers or cyphertext in common. Please refer to our [technical design document](https://github.com/simplex-chat/simplexmq/blob/master/protocol/overview-tjr.md) for more information about our privacy model and known security and privacy risks.
+
+**Privacy of user data**. We do not retain any data we transmit for any longer than necessary to provide the Services. We only collect aggregate statistics across all users, not per users - we do not have information about how many people use SimpleX Chat (we only know an approximate number of app installations and the aggregate traffic through our servers). In any case, we do not and will not sell or in any way monetize user data.
+
+**Operating our services**. For the purpose of operating our Services, you agree that your end-to-end encrypted messages are transferred via our servers in the United Kingdom, the United States and other countries where we have or use facilities and service providers or partners.
+
+**Software**. You agree to downloading and installing updates to our Services when they are available; they would only be automatic if you configure your devices in this way.
+
+**Traffic and device costs**. You are solely responsible for the traffic and device costs on which you use our Services, and any associated taxes.
+
+**Legal and acceptable usage**. You agree to use our Services only for legal and acceptable purposes. You will not use (or assist others in using) our Services in ways that: 1) violate or infringe the rights of SimpleX Chat, our users, or others, including privacy, publicity, intellectual property, or other proprietary rights; 2) involve sending illegal or impermissible communications, e.g. spam.
+
+**Damage to SimpleX Chat**. You must not (or assist others to) access, use, modify, distribute, transfer, or exploit our Services in unauthorized manners, or in ways that harm SimpleX Chat, our Services, or systems. For example, you must not 1) access our Services or systems without authorization, other than by using the apps; 2) disrupt the integrity or performance of our Services; 3) collect information about our users in any manner; or 4) sell, rent, or charge for our Services.
+
+**Keeping your data secure**. SimpleX Chat is the first messaging platform that is 100% private by design - we neither have ability to access your messages, nor we have information about who you communicate with. That means that you are solely responsible for keeping your device and your user profile safe and secure. If you lose your phone or remove the app, you will not be able to recover the lost data, unless you made a back up.
+
+**Storing the messages on the device**. Currently the messages are stored in the database on your device without encryption. It means that if you make a backup of the app and store it unecrypted, the backup provider may be able to access the messages.
+
+**No Access to Emergency Services**. Our Services do not provide access to emergency service providers like the police, fire department, hospitals, or other public safety organizations. Make sure you can contact emergency service providers through a mobile, fixed-line telephone, or other service.
+
+**Third-party services**. Our Services may allow you to access, use, or interact with third-party websites, apps, content, and other products and services. When you use third-party services, their terms and privacy policies govern your use of those services.
+
+**Your Rights**. You own the mesasges and information you transmit through our Services. Your recipients are able to retain the messages you receive from you; there is no technical ability to delete data from their devices.
+
+**License**. SimpleX Chat grants you a limited, revocable, non-exclusive, and non-transferable license to use our Services in accordance with these Terms. The source-code of services is available and can be used under [AGPL v3 licence](https://github.com/simplex-chat/simplex-chat/blob/stable/LICENSE)
+
+**SimpleX Chat Rights**. We own all copyrights, trademarks, domains, logos, trade secrets, and other intellectual property rights associated with our Services. You may not use our copyrights, trademarks, domains, logos, and other intellectual property rights unless you have our written permission, and unless under an open-source license distributed together with the source code. To report copyright, trademark, or other intellectual property infringement, please contact chat@simplex.chat.
+
+**Disclaimers**. YOU USE OUR SERVICES AT YOUR OWN RISK AND SUBJECT TO THE FOLLOWING DISCLAIMERS. WE PROVIDE OUR SERVICES ON AN “AS IS” BASIS WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, AND FREEDOM FROM COMPUTER VIRUS OR OTHER HARMFUL CODE. SIMPLEX DOES NOT WARRANT THAT ANY INFORMATION PROVIDED BY US IS ACCURATE, COMPLETE, OR USEFUL, THAT OUR SERVICES WILL BE OPERATIONAL, ERROR-FREE, SECURE, OR SAFE, OR THAT OUR SERVICES WILL FUNCTION WITHOUT DISRUPTIONS, DELAYS, OR IMPERFECTIONS. WE DO NOT CONTROL, AND ARE NOT RESPONSIBLE FOR, CONTROLLING HOW OR WHEN OUR USERS USE OUR SERVICES. WE ARE NOT RESPONSIBLE FOR THE ACTIONS OR INFORMATION (INCLUDING CONTENT) OF OUR USERS OR OTHER THIRD PARTIES. YOU RELEASE US, AFFILIATES, DIRECTORS, OFFICERS, EMPLOYEES, PARTNERS, AND AGENTS ("SIMPLEX PARTIES") FROM ANY CLAIM, COMPLAINT, CAUSE OF ACTION, CONTROVERSY, OR DISPUTE (TOGETHER, "CLAIM") AND DAMAGES, KNOWN AND UNKNOWN, RELATING TO, ARISING OUT OF, OR IN ANY WAY CONNECTED WITH ANY SUCH CLAIM YOU HAVE AGAINST ANY THIRD PARTIES.
+
+**Limitation of liability**. THE SIMPLEX PARTIES WILL NOT BE LIABLE TO YOU FOR ANY LOST PROFITS OR CONSEQUENTIAL, SPECIAL, PUNITIVE, INDIRECT, OR INCIDENTAL DAMAGES RELATING TO, ARISING OUT OF, OR IN ANY WAY IN CONNECTION WITH OUR TERMS, US, OR OUR SERVICES, EVEN IF THE SIMPLEX PARTIES HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. OUR AGGREGATE LIABILITY RELATING TO, ARISING OUT OF, OR IN ANY WAY IN CONNECTION WITH OUR TERMS, US, OR OUR SERVICES WILL NOT EXCEED ONE DOLLAR ($1). THE FOREGOING DISCLAIMER OF CERTAIN DAMAGES AND LIMITATION OF LIABILITY WILL APPLY TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW. THE LAWS OF SOME JURISDICTIONS MAY NOT ALLOW THE EXCLUSION OR LIMITATION OF CERTAIN DAMAGES, SO SOME OR ALL OF THE EXCLUSIONS AND LIMITATIONS SET FORTH ABOVE MAY NOT APPLY TO YOU. NOTWITHSTANDING ANYTHING TO THE CONTRARY IN OUR TERMS, IN SUCH CASES, THE LIABILITY OF THE SIMPLEX PARTIES WILL BE LIMITED TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+
+**Availability**. Our Services may be interrupted, including for maintenance, upgrades, or network or equipment failures. We may discontinue some or all of our Services, including certain features and the support for certain devices and platforms, at any time.
+
+**Resolving disputes**. You agree to resolve any Claim you have with us relating to or arising from our Terms, us, or our Services in the courts of England and Wales. You also agree to submit to the personal jurisdiction of such courts for the purpose of resolving all such disputes. The laws of England govern our Terms, as well as any disputes, whether in court or arbitration, which might arise between SimpleX Chat and you, without regard to conflict of law provisions.
+
+**Changes to the terms**. SimpleX Chat may update the Terms from time to time. Your continued use of our Services confirms your acceptance of our updated Terms and supersedes any prior Terms. You will comply with all applicable export control and trade sanctions laws. Our Terms cover the entire agreement between you and SimpleX Chat regarding our Services. If you do not agree with our Terms, you should stop using our Services.
+
+**Enforcing the terms**. If we fail to enforce any of our Terms, that does not mean we waive the right to enforce them. If any provision of the Terms is deemed unlawful, void, or unenforceable, that provision shall be deemed severable from our Terms and shall not affect the enforceability of the remaining provisions. Our Services are not intended for distribution to or use in any country where such distribution or use would violate local law or would subject us to any regulations in another country. We reserve the right to limit our Services in any country. If you have specific questions about these Terms, please contact us at chat@simplex.chat.
+
+**Ending these Terms**. You may end these Terms with SimpleX Chat at any time by deleting SimpleX Chat app(s) from your device and discontinuing use of our Services. The provisions related to Licenses, Disclaimers, Limitation of Liability, Resolving dispute, Availability, Changes to the terms, Enforcing the terms, and Ending these Terms will survive termination of your relationship with SimpleX Chat.
+
+Updated March 1, 2022

README.md

@@ -0,0 +1,237 @@
+<img src="images/simplex-chat-logo.svg" alt="SimpleX logo" width="100%">
+
+# SimpleX - the first messaging platform that has no user identifiers of any kind - 100% private by design!
+
+[![build](https://github.com/simplex-chat/simplex-chat/actions/workflows/build.yml/badge.svg?branch=stable)](https://github.com/simplex-chat/simplex-chat/actions/workflows/build.yml)
+[![GitHub downloads](https://img.shields.io/github/downloads/simplex-chat/simplex-chat/total)](https://github.com/simplex-chat/simplex-chat/releases)
+[![GitHub release](https://img.shields.io/github/v/release/simplex-chat/simplex-chat)](https://github.com/simplex-chat/simplex-chat/releases)
+[![Follow on Twitter](https://img.shields.io/twitter/follow/SimpleXChat?style=social)](https://twitter.com/SimpleXChat)
+[![Join on Reddit](https://img.shields.io/reddit/subreddit-subscribers/SimpleXChat?style=social)](https://www.reddit.com/r/SimpleXChat)
+
+[<img src="https://github.com/simplex-chat/.github/blob/master/profile/images/apple_store.svg" alt="iOS app" height="42">](https://apps.apple.com/us/app/simplex-chat/id1605771084)
+&nbsp;
+[![Android app](https://github.com/simplex-chat/.github/blob/master/profile/images/google_play.svg)](https://play.google.com/store/apps/details?id=chat.simplex.app)
+&nbsp;
+[<img src="https://github.com/simplex-chat/.github/blob/master/profile/images/f_droid.svg" alt="F-Droid" height="41">](https://app.simplex.chat)
+&nbsp;
+[<img src="https://github.com/simplex-chat/.github/blob/master/profile/images/testflight.png" alt="iOS TestFlight" height="41">](https://testflight.apple.com/join/DWuT2LQu)
+&nbsp;
+[<img src="https://github.com/simplex-chat/.github/blob/master/profile/images/apk_icon.png" alt="APK" height="41">](https://github.com/simplex-chat/website/raw/master/simplex.apk)
+
+- 🖲 Protects your messages and metadata - who you talk to and when.
+- 🔐 Double ratchet end-to-end encryption, with additional encryption layer.
+- 📱 Mobile apps for Android ([Google Play](https://play.google.com/store/apps/details?id=chat.simplex.app), [APK](https://github.com/simplex-chat/website/raw/master/simplex.apk)) and [iOS](https://apps.apple.com/us/app/simplex-chat/id1605771084).
+- 🚀 [TestFlight preview for iOS](https://testflight.apple.com/join/DWuT2LQu) with the new features 1-2 weeks earlier - **limited to 10,000 users**!
+- 🖥 Available as a terminal (console) app / CLI on Linux, MacOS, Windows.
+
+## Contents
+
+- [Why privacy matters](#why-privacy-matters)
+- [SimpleX approach to privacy and security](#simplex-approach-to-privacy-and-security)
+  - [Complete privacy](#complete-privacy-of-your-identity-profile-contacts-and-metadata)
+  - [Protection against spam and abuse](#the-best-protection-against-spam-and-abuse)
+  - [Ownership and security of your data](#complete-ownership-control-and-security-of-your-data)
+  - [Users own SimpleX network](#users-own-simplex-network)
+- [Frequently asked questions](#frequently-asked-questions)
+- [News and updates](#news-and-updates)
+- [Make a private connection](#make-a-private-connection)
+- [Quick installation of a terminal app](#zap-quick-installation-of-a-terminal-app)
+- [SimpleX Platform design](#simplex-platform-design)
+- [Privacy: technical details and limitations](#privacy-technical-details-and-limitations)
+- [For developers](#for-developers)
+- [Roadmap](#roadmap)
+- [Help us pay for 3rd party security audit](#help-us-pay-for-3rd-party-security-audit)
+- [Disclaimer, License](#disclaimer)
+
+## Why privacy matters
+
+Everyone should care about privacy and security of their communications - innocuous conversations can put you in danger even if there is nothing to hide.
+
+One of the most shocking stories is the experience of [Mohamedou Ould Salahi](https://en.wikipedia.org/wiki/Mohamedou_Ould_Slahi) that he wrote about in his memoir and that is shown in The Mauritanian movie. He was put into Guantanamo camp, without trial, and was tortured there for 15 years after a phone call to his relative in Afghanistan, under suspicion of being involved in 9/11 attacks, even though he lived in Germany for the 10 years prior to the attacks.
+
+It is not enough to use an end-to-end encrypted messenger, we all should use the messengers that protect the privacy of our personal networks - who we are connected with.
+
+## SimpleX approach to privacy and security
+
+### Complete privacy of your identity, profile, contacts and metadata
+
+**Unlike any other existing messaging platform, SimpleX has no identifiers assigned to the users** - not even random numbers. This protects the privacy of who are you communicating with, hiding it from SimpleX platform servers and from any observers. [Read more](./docs/SIMPLEX.md#full-privacy-of-your-identity-profile-contacts-and-metadata).
+
+### The best protection against spam and abuse
+
+As you have no identifier on SimpleX platform, you cannot be contacted unless you share a one-time invitation link or an optional temporary user address. [Read more](./docs/SIMPLEX.md#the-best-protection-against-spam-and-abuse).
+
+### Complete ownership, control and security of your data
+
+SimpleX stores all user data on client devices, the messages are only held temporarily on SimpleX relay servers until they are received. [Read more](./docs/SIMPLEX.md#complete-ownership-control-and-security-of-your-data).
+
+### Users own SimpleX network
+
+You can use SimpleX with your own servers and still communicate with people using the servers that are pre-configured in the apps or any other SimpleX servers. [Read more](./docs/SIMPLEX.md#users-own-simplex-network).
+
+## Frequently asked questions
+
+1. _How SimpleX can deliver messages without any user identifiers?_ See [v2 release annoucement](./blog/20220511-simplex-chat-v2-images-files.md#the-first-messaging-platform-without-user-identifiers) explaining how SimpleX works.
+
+2. _Why should I not just use Signal?_ Signal is a centralised platform that uses phone numbers to identify its users and their contacts. It means that while the content of your messages on Signal is protected with robust end-to-end encryption, there is a large amount of meta-data visible to Signal - who you talk with and when.
+
+3. _How is it different from Matrix, Session, Ricochet, Cwtch, etc., that also don't require user identites?_ Although these platforms do not require a _real identity_, they do rely on anonymous user identities to deliver messages – it can be, for example, an identity key or a random number. Using a persistent user identity, even anonymous, creates a risk that user's connection graph becomes known to the observers and/or service providers, and it can lead to de-anonymizing some users. If the same user profile is used to connect to two different people via any messenger other than SimpleX, these two people can confirm if they are connected to the same person - they would use the same user identifier in the messages. With SimpleX there is no meta-data in common between your conversations with different contacts - the quality that no other messaging platform has.
+
+## News and updates
+
+Selected updates:
+
+[Aug 8, 2022. v3.1: secret chat groups, access via Tor, reduced battery and traffic usage, advanced netwrok settings, etc.](./blog/20220808-simplex-chat-v3.1-chat-groups.md)
+
+[Jul 11, 2022. v3.0: instant push notifications for iOS, e2e encrypted WebRTC audio/video calls, chat database export/import, privacy and performance improvements](./blog/20220711-simplex-chat-v3-released-ios-notifications-audio-video-calls-database-export-import-protocol-improvements.md)
+
+[May 11, 2022. v2.0 released - sending images and files in mobile apps](./blog/20220511-simplex-chat-v2-images-files.md)
+
+[Mar 08, 2022 Mobile apps for iOS and Android released](./blog/20220308-simplex-chat-mobile-apps.md)
+
+[Jan 12, 2022. SimpleX v1 released: the only messaging and application platform without user identities](./20220112-simplex-chat-v1-released.md)
+
+[All updates](./blog)
+
+## Make a private connection
+
+You need to share a link or scan a QR code (in person or during a video call) to make a connection and start messaging.
+
+The channel through which you share the link does not have to be secure - it is enough that you can confirm who sent you the message and that your SimpleX connection is established.
+
+<img src="https://github.com/simplex-chat/.github/blob/master/profile/images/conversation.png" alt="Make a private connection" width="594" height="360">
+
+## :zap: Quick installation of a terminal app
+
+```sh
+curl -o- https://raw.githubusercontent.com/simplex-chat/simplex-chat/stable/install.sh | bash
+```
+
+Once the chat client is installed, simply run `simplex-chat` from your terminal.
+
+![simplex-chat](./images/connection.gif)
+
+Read more about [installing and using the terminal app](./docs/CLI.md).
+
+## SimpleX Platform design
+
+SimpleX is a client-server network with a unique network topology that uses redundant, disposable message relay nodes to asynchronously pass messages via unidirectional (simplex) message queues, providing recipient and sender anonymity.
+
+Unlike P2P networks, all messages are passed through one or several server nodes, that do not even need to have persistence. In fact, the current [SMP server implementation](https://github.com/simplex-chat/simplexmq#smp-server) uses in-memory message storage, persisting only the queue records. SimpleX provides better metadata protection than P2P designs, as no global participant identifiers are used to deliver messages, and avoids [the problems of P2P networks](./docs/SIMPLEX.md#comparison-with-p2p-messaging-protocols).
+
+Unlike federated networks, the server nodes **do not have records of the users**, **do not communicate with each other** and **do not store messages** after they are delivered to the recipients. There is no way to discover the full list of servers participating in SimpleX network. This design avoids the problem of metadata visibility that all federated networks have and better protects from the network-wide attacks.
+
+Only the client devices have information about users, their contacts and groups.
+
+See [SimpleX whitepaper](https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md) for more information on platform objectives and technical design.
+
+See [SimpleX Chat Protocol](./docs/protocol/simplex-chat.md) for the format of messages sent between chat clients over [SimpleX Messaging Protocol](https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md).
+
+## Privacy: technical details and limitations
+
+SimpleX Chat is a work in progress – we are releasing improvements as they are ready. You have to decide if the current state is good enough for your usage scenario.
+
+What is already implemented:
+
+1. Instead of user profile identifiers used by all other platforms, even the most private ones, SimpleX uses pairwise per-queue identifiers (2 addresses for each unidirectional message queue, with an optional 3rd address for push notificaitons on iOS, 2 queues in each connection between the users). It makes observing the network graph on the application level more difficult, as for `n` users there can be up to `n * (n-1)` message queues.
+2. End-to-end encryption in each message queue using [NaCl cryptobox](https://nacl.cr.yp.to/box.html). This is added to allow redundancy in the future (passing each message via several servers), to avoid having the same ciphertext in different queues (that would only be visible to the attacker if TLS is compromised). The encryption keys used for this encryption are not rotated, instead we are planning to rotate the queues. Curve25519 keys are used for key negotiation.
+3. [Double ratchet](https://signal.org/docs/specifications/doubleratchet/) end-to-end encryption in each conversation between two users (or group members). This is the same algorithm that is used in Signal and many other messaging apps; it provides OTR messaging with forward secrecy (each message is encrypted by its own ephemeral key), break-in recovery (the keys are frequently re-negotiated as part of the message exchange). Two pairs of Curve448 keys are used for the initial key agreement, initiating party passes these keys via the connection link, accepting side - in the header of the confirmation message.
+4. Additional layer of encryption using NaCL cryptobox for the messages delivered from the server to the recipient. This layer avoids having any ciphertext in common between sent and received traffic of the server inside TLS (and there are no identifiers in common as well).
+5. Several levels of content padding to frustrate message size attacks.
+6. Starting from v2 of SMP protocol (the current version is v4) all message metadata, including the time when the message was received by the server (rounded to a second) is sent to the recipients inside an encrypted envelope, so even if TLS is compromised it cannot be observed.
+7. Only TLS 1.2/1.3 are allowed for client-server connections, limited to cryptographic algorithms: CHACHA20POLY1305_SHA256, Ed25519/Ed448, Curve25519/Curve448.
+8. To protect against replay attacks SimpleX servers require [tlsunique channel binding](https://www.rfc-editor.org/rfc/rfc5929.html) as session ID in each client command signed with per-queue ephemeral key.
+9. To protect your IP address all SimpleX Chat clients support accessing messaging servers via Tor - see [v3.1 release announcement](./blog/20220808-simplex-chat-v3.1-chat-groups.md) for more details.
+
+We plan to add soon:
+
+1. Message queue rotation. Currently the queues created between two users are used until the contact is deleted, providing a long-term pairwise identifiers of the conversation. We are planning to add queue rotation to make these identifiers termporary and rotate based on some schedule TBC (e.g., every X messages, or every X hours/days).
+2. Local database encryption. Currently the local chat database stored on your device is not encrypted.
+3. Message "mixing" - adding latency to message delivery, to protect against traffic correlation by message time.
+4. Independent implementation audit.
+
+## For developers
+
+We plan that the SimpleX platform will grow into the platform supporting any distributed Internet application. This will allow you to build any service that people can access via chat, with custom web-based UI widgets that anybody with basic HTML/CSS/JavaScript knowledge can create in a few hours.
+
+You already can:
+
+- use SimpleX Chat library to integrate chat functionality into your apps.
+- use SimpleX Chat bot templates in Haskell to build your own chat bot services (TypeScript SDK is coming soon).
+
+If you are considering developing with SimpleX platform please get in touch for any advice and support.
+
+## Roadmap
+
+- ✅ Easy to deploy SimpleX server with in-memory message storage, without any dependencies.
+- ✅ Terminal (console) client with groups and files support.
+- ✅ One-click SimpleX server deployment on Linode.
+- ✅ End-to-end encryption using double-ratchet protocol with additional encryption layer.
+- ✅ Mobile apps v1 for Android and iOS.
+- ✅ Private instant notifications for Android using background service.
+- ✅ Haskell chat bot templates.
+- ✅ v2.0 - supporting images and files in mobile apps.
+- ✅ Manual chat history deletion.
+- ✅ End-to-end encrypted WebRTC audio and video calls via the mobile apps.
+- ✅ Privacy preserving instant notifications for iOS using Apple Push Notification service.
+- ✅ Chat database export and import
+- ✅ Chat groups in mobile apps.
+- ✅ Connecting to messaging servers via Tor.
+- 🏗 Dual server addresses to access messaging servers as v3 hidden services (in progress).
+- 🏗 Chat server and TypeScript client SDK to develop chat interfaces, integrations and chat bots (in progress).
+- Chat database encryption.
+- Disappearing messages, with mutual agreement.
+- Web widgets for custom interactivity in the chats.
+- SMP protocol improvements:
+  - SMP queue redundancy and rotation.
+  - Message delivery confirmation.
+  - Supporting the same profile on multiple devices.
+- Privacy-preserving identity server for optional DNS-based contact/group addresses to simplify connection and discovery, but not used to deliver messages:
+  - keep all your contacts and groups even if you lose the domain.
+  - the server doesn't have information about your contacts and groups.
+- Channels server for large groups and broadcast channels.
+- Media server to optimize sending large files to groups.
+
+## Help us pay for 3rd party security audit
+
+I will get straight to the point: I ask you to support SimpleX Chat with donations.
+
+We are prioritizing users privacy and security - it would be impossible without your support we were lucky to have so far.
+
+We are planning a 3rd party security audit for the app, and it would hugely help us if some part of this $20,000+ expense could be covered with donations.
+
+Our pledge to our users is that SimpleX protocols are and will remain open, and in public domain, - so anybody can build the future implementations of the clients and the servers. We are building SimpleX platform based on the same principles as email and web, but much more private and secure.
+
+If you are already using SimpleX Chat, or plan to use it in the future when it has more features, please consider making a donation - it will help us to raise more funds. Donating any amount, even the price of the cup of coffee, would make a huge difference for us.
+
+It is possible to donate via:
+
+- [GitHub](https://github.com/sponsors/simplex-chat) - it is commission-free for us.
+- [OpenCollective](https://opencollective.com/simplex-chat) - it charges a commission, and also accepts donations in crypto-currencies.
+- Monero wallet: 8568eeVjaJ1RQ65ZUn9PRQ8ENtqeX9VVhcCYYhnVLxhV4JtBqw42so2VEUDQZNkFfsH5sXCuV7FN8VhRQ21DkNibTZP57Qt
+
+Thank you,
+
+Evgeny
+
+SimpleX Chat founder
+
+## Disclaimer
+
+[SimpleX protocols and security model](https://github.com/simplex-chat/simplexmq/blob/master/protocol/overview-tjr.md) was reviewed and had many improvements in v1.0.0; we are currently arranging for the independent implementation audit.
+
+You are likely to discover some bugs - we would really appreciate if you use it and let us know anything that needs to be fixed or improved.
+
+## License
+
+[AGPL v3](./LICENSE)
+
+[<img src="https://github.com/simplex-chat/.github/blob/master/profile/images/apple_store.svg" alt="iOS app" height="42">](https://apps.apple.com/us/app/simplex-chat/id1605771084)
+&nbsp;
+[![Android app](https://github.com/simplex-chat/.github/blob/master/profile/images/google_play.svg)](https://play.google.com/store/apps/details?id=chat.simplex.app)
+&nbsp;
+[<img src="https://github.com/simplex-chat/.github/blob/master/profile/images/f_droid.svg" alt="F-Droid" height="41">](https://app.simplex.chat)
+&nbsp;
+[<img src="https://github.com/simplex-chat/.github/blob/master/profile/images/testflight.png" alt="iOS TestFlight" height="41">](https://testflight.apple.com/join/DWuT2LQu)
+&nbsp;
+[<img src="https://github.com/simplex-chat/.github/blob/master/profile/images/apk_icon.png" alt="APK" height="41">](https://github.com/simplex-chat/website/raw/master/simplex.apk)

SimplexMarkdown.hs

@@ -1,122 +0,0 @@
-{-# LANGUAGE LambdaCase #-}
-{-# LANGUAGE OverloadedStrings #-}
-
-module SimplexMarkdown where
-
-import Control.Applicative ((<|>))
-import Data.Attoparsec.Text (Parser)
-import qualified Data.Attoparsec.Text as A
-import Data.Either (fromRight)
-import Data.Functor (($>))
-import Data.Map.Strict (Map)
-import qualified Data.Map.Strict as M
-import Data.String
-import Data.Text (Text)
-import qualified Data.Text as T
-import Styled
-import System.Console.ANSI.Types
-
-data Markdown = Markdown Format Text | Markdown :|: Markdown
-  deriving (Show)
-
-data Format
-  = Bold
-  | Italic
-  | Underline
-  | StrikeThrough
-  | Colored Color
-  | NoFormat
-  deriving (Show)
-
-instance Semigroup Markdown where (<>) = (:|:)
-
-instance Monoid Markdown where mempty = unmarked ""
-
-instance IsString Markdown where fromString = unmarked . T.pack
-
-unmarked :: Text -> Markdown
-unmarked = Markdown NoFormat
-
-styleMarkdown :: Markdown -> StyledString
-styleMarkdown (s1 :|: s2) = styleMarkdown s1 <> styleMarkdown s2
-styleMarkdown (Markdown f s) = Styled sgr $ T.unpack s
-  where
-    sgr = case f of
-      Bold -> [SetConsoleIntensity BoldIntensity]
-      Italic -> [SetUnderlining SingleUnderline, SetItalicized True]
-      Underline -> [SetUnderlining SingleUnderline]
-      StrikeThrough -> [SetSwapForegroundBackground True]
-      Colored c -> [SetColor Foreground Vivid c]
-      NoFormat -> []
-
-formats :: Map Char Format
-formats =
-  M.fromList
-    [ ('*', Bold),
-      ('_', Italic),
-      ('+', Underline),
-      ('~', StrikeThrough),
-      ('^', Colored White)
-    ]
-
-colors :: Map Text Color
-colors =
-  M.fromList
-    [ ("red", Red),
-      ("green", Green),
-      ("blue", Blue),
-      ("yellow", Yellow),
-      ("cyan", Cyan),
-      ("magenta", Magenta),
-      ("r", Red),
-      ("g", Green),
-      ("b", Blue),
-      ("y", Yellow),
-      ("c", Cyan),
-      ("m", Magenta)
-    ]
-
-parseMarkdown :: Text -> Markdown
-parseMarkdown s = fromRight (unmarked s) $ A.parseOnly (markdownP <* A.endOfInput) s
-
-markdownP :: Parser Markdown
-markdownP = merge <$> A.many' fragmentP
-  where
-    merge :: [Markdown] -> Markdown
-    merge [] = ""
-    merge [f] = f
-    merge (f : fs) = foldl (:|:) f fs
-    fragmentP :: Parser Markdown
-    fragmentP =
-      A.anyChar >>= \case
-        ' ' -> unmarked . (" " <>) <$> A.takeWhile (== ' ')
-        c -> case M.lookup c formats of
-          Just (Colored White) -> coloredP
-          Just f -> formattedP c "" f
-          Nothing -> unformattedP c
-    formattedP :: Char -> Text -> Format -> Parser Markdown
-    formattedP c p f = do
-      s <- A.takeTill (== c)
-      (A.char c $> Markdown f s) <|> noFormat (T.singleton c <> p <> s)
-    coloredP :: Parser Markdown
-    coloredP = do
-      color <- A.takeWhile (\c -> c /= ' ' && c /= '^')
-      case M.lookup color colors of
-        Just c ->
-          let f = Colored c
-           in (A.char ' ' *> formattedP '^' (color <> " ") f)
-                <|> (A.char '^' $> Markdown f color)
-                <|> noFormat ("^" <> color)
-        _ -> noFormat ("^" <> color)
-    unformattedP :: Char -> Parser Markdown
-    unformattedP c = unmarked . (T.singleton c <>) <$> wordsP
-    wordsP :: Parser Text
-    wordsP = do
-      s <- (<>) <$> A.takeTill (== ' ') <*> A.takeWhile (== ' ')
-      A.peekChar >>= \case
-        Nothing -> pure s
-        Just c -> case M.lookup c formats of
-          Just _ -> pure s
-          Nothing -> (s <>) <$> wordsP
-    noFormat :: Text -> Parser Markdown
-    noFormat = pure . unmarked

Styled.hs

@@ -1,29 +0,0 @@
-module Styled (StyledString (..), plain, bPlain, styledToANSITerm, styledToPlain) where
-
-import Data.ByteString.Char8 (ByteString)
-import qualified Data.ByteString.Char8 as B
-import Data.String
-import System.Console.ANSI (SGR (..), setSGRCode)
-
-data StyledString = Styled [SGR] String | StyledString :<>: StyledString
-
-instance Semigroup StyledString where (<>) = (:<>:)
-
-instance Monoid StyledString where mempty = plain ""
-
-instance IsString StyledString where fromString = plain
-
-plain :: String -> StyledString
-plain = Styled []
-
-bPlain :: ByteString -> StyledString
-bPlain = Styled [] . B.unpack
-
-styledToANSITerm :: StyledString -> String
-styledToANSITerm (Styled [] s) = s
-styledToANSITerm (Styled sgr s) = setSGRCode sgr <> s <> setSGRCode [Reset]
-styledToANSITerm (s1 :<>: s2) = styledToANSITerm s1 <> styledToANSITerm s2
-
-styledToPlain :: StyledString -> String
-styledToPlain (Styled _ s) = s
-styledToPlain (s1 :<>: s2) = styledToPlain s1 <> styledToPlain s2

Types.hs

@@ -1,14 +0,0 @@
-{-# LANGUAGE LambdaCase #-}
-
-module Types where
-
-import Data.ByteString.Char8 (ByteString)
-
-newtype Contact = Contact {toBs :: ByteString}
-
-data TermMode = TermModeBasic | TermModeEditor deriving (Eq)
-
-termModeName :: TermMode -> String
-termModeName = \case
-  TermModeBasic -> "basic"
-  TermModeEditor -> "editor"

apps/android/.gitignore

@@ -0,0 +1,18 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+/.idea/deploymentTargetDropDown.xml
+/.idea/misc.xml
+/.idea/uiDesigner.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

apps/android/.idea/.name

@@ -0,0 +1 @@
+SimpleX

apps/android/.idea/codeStyles/Project.xml

@@ -0,0 +1,149 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <ComposeCustomCodeStyleSettings>
+      <option name="USE_CUSTOM_FORMATTING_FOR_MODIFIERS" value="false" />
+    </ComposeCustomCodeStyleSettings>
+    <JetCodeStyleSettings>
+      <option name="SPACE_BEFORE_EXTEND_COLON" value="false" />
+      <option name="NAME_COUNT_TO_USE_STAR_IMPORT" value="3" />
+      <option name="WRAP_EXPRESSION_BODY_FUNCTIONS" value="0" />
+      <option name="WRAP_ELVIS_EXPRESSIONS" value="0" />
+      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+    </JetCodeStyleSettings>
+    <codeStyleSettings language="XML">
+      <option name="FORCE_REARRANGE_MODE" value="1" />
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+      </indentOptions>
+      <arrangement>
+        <rules>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:android</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:id</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>style</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>ANDROID_ATTRIBUTE_ORDER</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>.*</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+        </rules>
+      </arrangement>
+    </codeStyleSettings>
+    <codeStyleSettings language="kotlin">
+      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+      <option name="RIGHT_MARGIN" value="140" />
+      <option name="KEEP_FIRST_COLUMN_COMMENT" value="false" />
+      <option name="KEEP_BLANK_LINES_IN_DECLARATIONS" value="1" />
+      <option name="KEEP_BLANK_LINES_IN_CODE" value="0" />
+      <option name="KEEP_BLANK_LINES_BEFORE_RBRACE" value="0" />
+      <option name="ALIGN_MULTILINE_PARAMETERS" value="false" />
+      <option name="CALL_PARAMETERS_WRAP" value="0" />
+      <option name="METHOD_PARAMETERS_WRAP" value="0" />
+      <option name="EXTENDS_LIST_WRAP" value="0" />
+      <option name="METHOD_CALL_CHAIN_WRAP" value="0" />
+      <option name="ASSIGNMENT_WRAP" value="0" />
+      <option name="METHOD_ANNOTATION_WRAP" value="0" />
+      <option name="CLASS_ANNOTATION_WRAP" value="0" />
+      <option name="FIELD_ANNOTATION_WRAP" value="0" />
+      <indentOptions>
+        <option name="INDENT_SIZE" value="2" />
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+        <option name="TAB_SIZE" value="2" />
+      </indentOptions>
+    </codeStyleSettings>
+  </code_scheme>
+</component>

apps/android/.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,6 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>

apps/android/.idea/compiler.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>

apps/android/.idea/gradle.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

apps/android/.idea/inspectionProfiles/Project_Default.xml

@@ -0,0 +1,20 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="PreviewAnnotationInFunctionWithParameters" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMultipleParameterProviders" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+    <inspection_tool class="PreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
+      <option name="previewFile" value="true" />
+    </inspection_tool>
+  </profile>
+</component>

apps/android/.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
+  </component>
+</project>

apps/android/app/.gitignore

@@ -0,0 +1 @@
+/build

apps/android/app/build.gradle

@@ -0,0 +1,193 @@
+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+    id 'org.jetbrains.kotlin.plugin.serialization'
+}
+
+android {
+    compileSdk 32
+
+    defaultConfig {
+        applicationId "chat.simplex.app"
+        minSdk 29
+        targetSdk 32
+        versionCode 49
+        versionName "3.2"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        ndk {
+            abiFilters 'arm64-v8a'
+        }
+        vectorDrawables {
+            useSupportLibrary true
+        }
+        externalNativeBuild {
+            cmake {
+                cppFlags ''
+            }
+        }
+        manifestPlaceholders.app_name = "@string/app_name"
+        manifestPlaceholders.provider_authorities = "chat.simplex.app.provider"
+        manifestPlaceholders.extract_native_libs = compression_level != "0"
+    }
+
+    buildTypes {
+        debug {
+            applicationIdSuffix "$application_id_suffix"
+            debuggable new Boolean("$enable_debuggable")
+            manifestPlaceholders.app_name = "$app_name"
+            // Provider can't be the same for different apps on the same device
+            manifestPlaceholders.provider_authorities = "chat.simplex.app${application_id_suffix}.provider"
+        }
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+        freeCompilerArgs += "-opt-in=kotlinx.coroutines.DelicateCoroutinesApi"
+        freeCompilerArgs += "-opt-in=androidx.compose.foundation.ExperimentalFoundationApi"
+        freeCompilerArgs += "-opt-in=androidx.compose.ui.text.ExperimentalTextApi"
+        freeCompilerArgs += "-opt-in=androidx.compose.material.ExperimentalMaterialApi"
+        freeCompilerArgs += "-opt-in=com.google.accompanist.insets.ExperimentalAnimatedInsets"
+        freeCompilerArgs += "-opt-in=com.google.accompanist.permissions.ExperimentalPermissionsApi"
+        freeCompilerArgs += "-opt-in=kotlinx.serialization.InternalSerializationApi"
+        freeCompilerArgs += "-opt-in=kotlinx.serialization.ExperimentalSerializationApi"
+    }
+    externalNativeBuild {
+        cmake {
+            path file('src/main/cpp/CMakeLists.txt')
+        }
+    }
+    buildFeatures {
+        compose true
+    }
+    composeOptions {
+        kotlinCompilerExtensionVersion compose_version
+    }
+    packagingOptions {
+        resources {
+            excludes += '/META-INF/{AL2.0,LGPL2.1}'
+        }
+        jniLibs.useLegacyPackaging = compression_level != "0"
+    }
+}
+
+dependencies {
+    implementation 'androidx.core:core-ktx:1.7.0'
+    implementation "androidx.compose.ui:ui:$compose_version"
+    implementation "androidx.compose.material:material:$compose_version"
+    implementation "androidx.compose.ui:ui-tooling-preview:$compose_version"
+    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.4.1'
+    implementation 'androidx.lifecycle:lifecycle-process:2.4.1'
+    implementation 'androidx.activity:activity-compose:1.4.0'
+    implementation 'androidx.fragment:fragment:1.4.1'
+    implementation 'org.jetbrains.kotlinx:kotlinx-datetime:0.3.2'
+    implementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.2'
+    implementation "androidx.compose.material:material-icons-extended:$compose_version"
+    implementation "androidx.compose.ui:ui-util:$compose_version"
+    implementation "androidx.navigation:navigation-compose:2.4.1"
+    implementation "com.google.accompanist:accompanist-insets:0.23.0"
+    implementation 'androidx.webkit:webkit:1.4.0'
+
+    def work_version = "2.7.1"
+    implementation "androidx.work:work-runtime-ktx:$work_version"
+    implementation "androidx.work:work-multiprocess:$work_version"
+
+    def camerax_version = "1.1.0-beta01"
+    implementation "androidx.camera:camera-core:${camerax_version}"
+    implementation "androidx.camera:camera-camera2:${camerax_version}"
+    implementation "androidx.camera:camera-lifecycle:${camerax_version}"
+    implementation "androidx.camera:camera-view:${camerax_version}"
+
+    //Barcode
+    implementation 'org.boofcv:boofcv-android:0.40.1'
+    implementation 'org.boofcv:boofcv-core:0.40.1'
+
+    //Camera Permission
+    implementation "com.google.accompanist:accompanist-permissions:0.23.0"
+
+    // Link Previews
+    implementation 'org.jsoup:jsoup:1.13.1'
+
+    // Biometric authentication
+    implementation 'androidx.biometric:biometric:1.2.0-alpha04'
+
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+    androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_version"
+    debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"
+}
+
+def buildType = "unknown"
+// Don't do anything if no compression is needed
+if (compression_level != "0") {
+    tasks.whenTaskAdded { task ->
+        if (task.name == 'packageDebug') {
+            task.doLast {
+                buildType = "debug"
+            }
+            task.finalizedBy compressApk
+        } else if (task.name == 'packageRelease') {
+            task.doLast {
+                buildType = "release"
+            }
+            task.finalizedBy compressApk
+        }
+    }
+}
+
+tasks.register("compressApk") {
+    doLast {
+        def javaHome = System.properties['java.home'] ?: org.gradle.internal.jvm.Jvm.current().getJavaHome()
+        def sdkDir = android.getSdkDirectory().getAbsolutePath()
+        def keyAlias = ""
+        def keyPassword = ""
+        def storeFile = ""
+        def storePassword = ""
+        if (project.properties['android.injected.signing.key.alias'] != null) {
+            keyAlias = project.properties['android.injected.signing.key.alias']
+            keyPassword = project.properties['android.injected.signing.key.password']
+            storeFile = project.properties['android.injected.signing.store.file']
+            storePassword = project.properties['android.injected.signing.store.password']
+        } else if (android.signingConfigs.hasProperty(buildType)) {
+            def gradleConfig = android.signingConfigs[buildType]
+            keyAlias = gradleConfig.keyAlias
+            keyPassword = gradleConfig.keyPassword
+            storeFile = gradleConfig.storeFile
+            storePassword = gradleConfig.storePassword
+        } else {
+            // There is no signing config for current build type, can't sign the apk
+            println("No signing configs for this build type: $buildType")
+            return
+        }
+
+        def outputDir = tasks["package${buildType.capitalize()}"].outputs.files.last()
+
+        exec {
+            workingDir '../../../scripts/android'
+            setEnvironment(['JAVA_HOME': "$javaHome"])
+            commandLine './compress-and-sign-apk.sh',  \
+                     "$compression_level",  \
+                     "$outputDir",  \
+                     "$sdkDir",  \
+                     "$storeFile",  \
+                     "$storePassword",  \
+                     "$keyAlias",  \
+                     "$keyPassword"
+        }
+
+        if (project.properties['android.injected.signing.key.alias'] != null && buildType == 'release') {
+            new File(outputDir, "app-release.apk").renameTo(new File(outputDir, "simplex.apk"))
+        }
+
+        // View all gradle properties set
+        // project.properties.each { k, v -> println "$k -> $v" }
+    }
+}

apps/android/app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

apps/android/app/src/androidTest/java/chat/simplex/app/ExampleInstrumentedTest.kt

@@ -0,0 +1,22 @@
+package chat.simplex.app
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.platform.app.InstrumentationRegistry
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import org.junit.runner.RunWith
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+  @Test
+  fun useAppContext() {
+    // Context of the app under test.
+    val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+    assertEquals("chat.simplex.app", appContext.packageName)
+  }
+}

apps/android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,129 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="chat.simplex.app">
+
+  <uses-feature android:name="android.hardware.camera" />
+
+  <uses-permission android:name="android.permission.CAMERA" />
+  <uses-permission android:name="android.permission.VIDEO_CAPTURE" />
+  <uses-permission android:name="android.permission.RECORD_AUDIO" />
+  <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
+  <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+  <uses-permission android:name="android.permission.WAKE_LOCK" />
+  <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+  <uses-permission android:name="android.permission.VIBRATE" />
+  <uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+      tools:ignore="ScopedStorage" />
+  <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
+  <uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT" />
+
+  <application
+      android:name="SimplexApp"
+      android:allowBackup="true"
+      android:icon="@mipmap/icon"
+      android:label="${app_name}"
+      android:extractNativeLibs="${extract_native_libs}"
+      android:supportsRtl="true"
+      android:theme="@style/Theme.SimpleX">
+
+    <!-- Main activity -->
+    <activity
+        android:name=".MainActivity"
+        android:launchMode="singleTask"
+        android:exported="true"
+        android:label="${app_name}"
+        android:windowSoftInputMode="adjustResize"
+        android:theme="@style/Theme.SimpleX">
+      <intent-filter>
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+
+      <!-- open simplex:/ connection URI -->
+      <intent-filter>
+        <action android:name="android.intent.action.VIEW" />
+
+        <category android:name="android.intent.category.DEFAULT" />
+        <category android:name="android.intent.category.BROWSABLE" />
+
+        <data android:scheme="simplex" />
+      </intent-filter>
+      <intent-filter android:autoVerify="true">
+        <action android:name="android.intent.action.VIEW" />
+
+        <category android:name="android.intent.category.DEFAULT" />
+        <category android:name="android.intent.category.BROWSABLE" />
+
+        <data android:scheme="http" />
+        <data android:scheme="https" />
+        <data android:host="simplex.chat" />
+        <data android:pathPrefix="/invitation" />
+        <data android:pathPrefix="/contact" />
+      </intent-filter>
+    </activity>
+
+    <activity-alias
+        android:name=".MainActivity_default"
+        android:exported="true"
+        android:icon="@mipmap/icon"
+        android:enabled="true"
+        android:targetActivity=".MainActivity">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity-alias>
+
+    <activity-alias
+        android:name=".MainActivity_dark_blue"
+        android:exported="true"
+        android:icon="@mipmap/icon_dark_blue"
+        android:enabled="false"
+        android:targetActivity=".MainActivity">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity-alias>
+
+
+    <activity android:name=".views.call.IncomingCallActivity"
+        android:showOnLockScreen="true"/>
+
+    <provider
+        android:name="androidx.core.content.FileProvider"
+        android:authorities="${provider_authorities}"
+        android:exported="false"
+        android:grantUriPermissions="true">
+      <meta-data
+          android:name="android.support.FILE_PROVIDER_PATHS"
+          android:resource="@xml/file_paths" />
+    </provider>
+
+    <!-- SimplexService foreground service -->
+    <service
+        android:name=".SimplexService"
+        android:enabled="true"
+        android:exported="false"
+        android:stopWithTask="false"></service>
+
+    <!-- SimplexService restart on reboot -->
+    <receiver
+        android:name=".SimplexService$StartReceiver"
+        android:enabled="true"
+        android:exported="true">
+      <intent-filter>
+        <action android:name="android.intent.action.BOOT_COMPLETED" />
+      </intent-filter>
+    </receiver>
+
+    <!-- SimplexService restart on destruction -->
+    <receiver
+        android:name=".SimplexService$AutoRestartReceiver"
+        android:enabled="true"
+        android:exported="false" />
+  </application>
+</manifest>

apps/android/app/src/main/assets/www/README.md

@@ -0,0 +1,3 @@
+# WebView for WebRTC calls in SimpleX Chat
+
+Do NOT edit call.js here, it is compiled abd copied here from call.ts in packages/simplex-chat-webrtc

apps/android/app/src/main/assets/www/call.html

@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover" />
+    <link href="./style.css" rel="stylesheet" />
+    <script src="./lz-string.min.js"></script>
+  </head>
+  <body>
+    <video
+      id="remote-video-stream"
+      autoplay
+      playsinline
+      poster="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAQAAAAnOwc2AAAAEUlEQVR42mNk+M+AARiHsiAAcCIKAYwFoQ8AAAAASUVORK5CYII="
+    ></video>
+    <video
+      id="local-video-stream"
+      muted
+      autoplay
+      playsinline
+      poster="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAQAAAAnOwc2AAAAEUlEQVR42mNk+M+AARiHsiAAcCIKAYwFoQ8AAAAASUVORK5CYII="
+    ></video>
+  </body>
+  <footer>
+    <script src="./call.js"></script>
+  </footer>
+</html>

apps/android/app/src/main/assets/www/call.js

@@ -0,0 +1,650 @@
+"use strict";
+// Inspired by
+// https://github.com/webrtc/samples/blob/gh-pages/src/content/insertable-streams/endtoend-encryption
+var CallMediaType;
+(function (CallMediaType) {
+    CallMediaType["Audio"] = "audio";
+    CallMediaType["Video"] = "video";
+})(CallMediaType || (CallMediaType = {}));
+var VideoCamera;
+(function (VideoCamera) {
+    VideoCamera["User"] = "user";
+    VideoCamera["Environment"] = "environment";
+})(VideoCamera || (VideoCamera = {}));
+// for debugging
+// var sendMessageToNative = ({resp}: WVApiMessage) => console.log(JSON.stringify({command: resp}))
+var sendMessageToNative = (msg) => console.log(JSON.stringify(msg));
+// Global object with cryptrographic/encoding functions
+const callCrypto = callCryptoFunction();
+var TransformOperation;
+(function (TransformOperation) {
+    TransformOperation["Encrypt"] = "encrypt";
+    TransformOperation["Decrypt"] = "decrypt";
+})(TransformOperation || (TransformOperation = {}));
+let activeCall;
+const processCommand = (function () {
+    const defaultIceServers = [
+        { urls: ["stun:stun.simplex.im:5349"] },
+        { urls: ["turn:turn.simplex.im:5349"], username: "private", credential: "yleob6AVkiNI87hpR94Z" },
+    ];
+    function getCallConfig(encodedInsertableStreams, iceServers, relay) {
+        return {
+            peerConnectionConfig: {
+                iceServers: iceServers !== null && iceServers !== void 0 ? iceServers : defaultIceServers,
+                iceCandidatePoolSize: 10,
+                encodedInsertableStreams,
+                iceTransportPolicy: relay ? "relay" : "all",
+            },
+            iceCandidates: {
+                delay: 3000,
+                extrasInterval: 2000,
+                extrasTimeout: 8000,
+            },
+        };
+    }
+    function getIceCandidates(conn, config) {
+        return new Promise((resolve, _) => {
+            let candidates = [];
+            let resolved = false;
+            let extrasInterval;
+            let extrasTimeout;
+            const delay = setTimeout(() => {
+                if (!resolved) {
+                    resolveIceCandidates();
+                    extrasInterval = setInterval(() => {
+                        sendIceCandidates();
+                    }, config.iceCandidates.extrasInterval);
+                    extrasTimeout = setTimeout(() => {
+                        clearInterval(extrasInterval);
+                        sendIceCandidates();
+                    }, config.iceCandidates.extrasTimeout);
+                }
+            }, config.iceCandidates.delay);
+            conn.onicecandidate = ({ candidate: c }) => c && candidates.push(c);
+            conn.onicegatheringstatechange = () => {
+                if (conn.iceGatheringState == "complete") {
+                    if (resolved) {
+                        if (extrasInterval)
+                            clearInterval(extrasInterval);
+                        if (extrasTimeout)
+                            clearTimeout(extrasTimeout);
+                        sendIceCandidates();
+                    }
+                    else {
+                        resolveIceCandidates();
+                    }
+                }
+            };
+            function resolveIceCandidates() {
+                if (delay)
+                    clearTimeout(delay);
+                resolved = true;
+                const iceCandidates = serialize(candidates);
+                candidates = [];
+                resolve(iceCandidates);
+            }
+            function sendIceCandidates() {
+                if (candidates.length === 0)
+                    return;
+                const iceCandidates = serialize(candidates);
+                candidates = [];
+                sendMessageToNative({ resp: { type: "ice", iceCandidates } });
+            }
+        });
+    }
+    async function initializeCall(config, mediaType, aesKey, useWorker) {
+        const pc = new RTCPeerConnection(config.peerConnectionConfig);
+        const remoteStream = new MediaStream();
+        const localCamera = VideoCamera.User;
+        const localStream = await getLocalMediaStream(mediaType, localCamera);
+        const iceCandidates = getIceCandidates(pc, config);
+        const call = { connection: pc, iceCandidates, localMedia: mediaType, localCamera, localStream, remoteStream, aesKey, useWorker };
+        await setupMediaStreams(call);
+        pc.addEventListener("connectionstatechange", connectionStateChange);
+        return call;
+        async function connectionStateChange() {
+            sendMessageToNative({
+                resp: {
+                    type: "connection",
+                    state: {
+                        connectionState: pc.connectionState,
+                        iceConnectionState: pc.iceConnectionState,
+                        iceGatheringState: pc.iceGatheringState,
+                        signalingState: pc.signalingState,
+                    },
+                },
+            });
+            if (pc.connectionState == "disconnected" || pc.connectionState == "failed") {
+                pc.removeEventListener("connectionstatechange", connectionStateChange);
+                if (activeCall) {
+                    setTimeout(() => sendMessageToNative({ resp: { type: "ended" } }), 0);
+                }
+                endCall();
+            }
+            else if (pc.connectionState == "connected") {
+                const stats = (await pc.getStats());
+                for (const stat of stats.values()) {
+                    const { type, state } = stat;
+                    if (type === "candidate-pair" && state === "succeeded") {
+                        const iceCandidatePair = stat;
+                        const resp = {
+                            type: "connected",
+                            connectionInfo: {
+                                iceCandidatePair,
+                                localCandidate: stats.get(iceCandidatePair.localCandidateId),
+                                remoteCandidate: stats.get(iceCandidatePair.remoteCandidateId),
+                            },
+                        };
+                        setTimeout(() => sendMessageToNative({ resp }), 500);
+                        break;
+                    }
+                }
+            }
+        }
+    }
+    function serialize(x) {
+        return LZString.compressToBase64(JSON.stringify(x));
+    }
+    function parse(s) {
+        return JSON.parse(LZString.decompressFromBase64(s));
+    }
+    async function processCommand(body) {
+        const { corrId, command } = body;
+        const pc = activeCall === null || activeCall === void 0 ? void 0 : activeCall.connection;
+        let resp;
+        try {
+            switch (command.type) {
+                case "capabilities":
+                    console.log("starting outgoing call - capabilities");
+                    if (activeCall)
+                        endCall();
+                    // This request for local media stream is made to prompt for camera/mic permissions on call start
+                    if (command.media)
+                        await getLocalMediaStream(command.media, VideoCamera.User);
+                    const encryption = supportsInsertableStreams(command.useWorker);
+                    resp = { type: "capabilities", capabilities: { encryption } };
+                    break;
+                case "start": {
+                    console.log("starting incoming call - create webrtc session");
+                    if (activeCall)
+                        endCall();
+                    const { media, useWorker, iceServers, relay } = command;
+                    const encryption = supportsInsertableStreams(useWorker);
+                    const aesKey = encryption ? command.aesKey : undefined;
+                    activeCall = await initializeCall(getCallConfig(encryption && !!aesKey, iceServers, relay), media, aesKey, useWorker);
+                    const pc = activeCall.connection;
+                    const offer = await pc.createOffer();
+                    await pc.setLocalDescription(offer);
+                    // for debugging, returning the command for callee to use
+                    // resp = {
+                    //   type: "offer",
+                    //   offer: serialize(offer),
+                    //   iceCandidates: await activeCall.iceCandidates,
+                    //   capabilities: {encryption},
+                    //   media,
+                    //   iceServers,
+                    //   relay,
+                    //   aesKey,
+                    //   useWorker,
+                    // }
+                    resp = {
+                        type: "offer",
+                        offer: serialize(offer),
+                        iceCandidates: await activeCall.iceCandidates,
+                        capabilities: { encryption },
+                    };
+                    break;
+                }
+                case "offer":
+                    if (activeCall) {
+                        resp = { type: "error", message: "accept: call already started" };
+                    }
+                    else if (!supportsInsertableStreams(command.useWorker) && command.aesKey) {
+                        resp = { type: "error", message: "accept: encryption is not supported" };
+                    }
+                    else {
+                        const offer = parse(command.offer);
+                        const remoteIceCandidates = parse(command.iceCandidates);
+                        const { media, aesKey, useWorker, iceServers, relay } = command;
+                        activeCall = await initializeCall(getCallConfig(!!aesKey, iceServers, relay), media, aesKey, useWorker);
+                        const pc = activeCall.connection;
+                        await pc.setRemoteDescription(new RTCSessionDescription(offer));
+                        const answer = await pc.createAnswer();
+                        await pc.setLocalDescription(answer);
+                        addIceCandidates(pc, remoteIceCandidates);
+                        // same as command for caller to use
+                        resp = {
+                            type: "answer",
+                            answer: serialize(answer),
+                            iceCandidates: await activeCall.iceCandidates,
+                        };
+                    }
+                    break;
+                case "answer":
+                    if (!pc) {
+                        resp = { type: "error", message: "answer: call not started" };
+                    }
+                    else if (!pc.localDescription) {
+                        resp = { type: "error", message: "answer: local description is not set" };
+                    }
+                    else if (pc.currentRemoteDescription) {
+                        resp = { type: "error", message: "answer: remote description already set" };
+                    }
+                    else {
+                        const answer = parse(command.answer);
+                        const remoteIceCandidates = parse(command.iceCandidates);
+                        await pc.setRemoteDescription(new RTCSessionDescription(answer));
+                        addIceCandidates(pc, remoteIceCandidates);
+                        resp = { type: "ok" };
+                    }
+                    break;
+                case "ice":
+                    if (pc) {
+                        const remoteIceCandidates = parse(command.iceCandidates);
+                        addIceCandidates(pc, remoteIceCandidates);
+                        resp = { type: "ok" };
+                    }
+                    else {
+                        resp = { type: "error", message: "ice: call not started" };
+                    }
+                    break;
+                case "media":
+                    if (!activeCall) {
+                        resp = { type: "error", message: "media: call not started" };
+                    }
+                    else if (activeCall.localMedia == CallMediaType.Audio && command.media == CallMediaType.Video) {
+                        resp = { type: "error", message: "media: no video" };
+                    }
+                    else {
+                        enableMedia(activeCall.localStream, command.media, command.enable);
+                        resp = { type: "ok" };
+                    }
+                    break;
+                case "camera":
+                    if (!activeCall || !pc) {
+                        resp = { type: "error", message: "camera: call not started" };
+                    }
+                    else {
+                        await replaceMedia(activeCall, command.camera);
+                        resp = { type: "ok" };
+                    }
+                    break;
+                case "end":
+                    endCall();
+                    resp = { type: "ok" };
+                    break;
+                default:
+                    resp = { type: "error", message: "unknown command" };
+                    break;
+            }
+        }
+        catch (e) {
+            resp = { type: "error", message: `${command.type}: ${e.message}` };
+        }
+        const apiResp = { corrId, resp, command };
+        sendMessageToNative(apiResp);
+        return apiResp;
+    }
+    function endCall() {
+        var _a;
+        try {
+            (_a = activeCall === null || activeCall === void 0 ? void 0 : activeCall.connection) === null || _a === void 0 ? void 0 : _a.close();
+        }
+        catch (e) {
+            console.log(e);
+        }
+        activeCall = undefined;
+        resetVideoElements();
+    }
+    function addIceCandidates(conn, iceCandidates) {
+        for (const c of iceCandidates) {
+            conn.addIceCandidate(new RTCIceCandidate(c));
+        }
+    }
+    async function setupMediaStreams(call) {
+        const videos = getVideoElements();
+        if (!videos)
+            throw Error("no video elements");
+        await setupEncryptionWorker(call);
+        setupLocalStream(call);
+        setupRemoteStream(call);
+        setupCodecPreferences(call);
+        // setupVideoElement(videos.local)
+        // setupVideoElement(videos.remote)
+        videos.local.srcObject = call.localStream;
+        videos.remote.srcObject = call.remoteStream;
+    }
+    async function setupEncryptionWorker(call) {
+        if (call.aesKey) {
+            if (!call.key)
+                call.key = await callCrypto.decodeAesKey(call.aesKey);
+            if (call.useWorker && !call.worker) {
+                const workerCode = `const callCrypto = (${callCryptoFunction.toString()})(); (${workerFunction.toString()})()`;
+                call.worker = new Worker(URL.createObjectURL(new Blob([workerCode], { type: "text/javascript" })));
+                call.worker.onerror = ({ error, filename, lineno, message }) => console.log(JSON.stringify({ error, filename, lineno, message }));
+                call.worker.onmessage = ({ data }) => console.log(JSON.stringify({ message: data }));
+            }
+        }
+    }
+    function setupLocalStream(call) {
+        const videos = getVideoElements();
+        if (!videos)
+            throw Error("no video elements");
+        const pc = call.connection;
+        let { localStream } = call;
+        for (const track of localStream.getTracks()) {
+            pc.addTrack(track, localStream);
+        }
+        if (call.aesKey && call.key) {
+            console.log("set up encryption for sending");
+            for (const sender of pc.getSenders()) {
+                setupPeerTransform(TransformOperation.Encrypt, sender, call.worker, call.aesKey, call.key);
+            }
+        }
+    }
+    function setupRemoteStream(call) {
+        // Pull tracks from remote stream as they arrive add them to remoteStream video
+        const pc = call.connection;
+        pc.ontrack = (event) => {
+            try {
+                if (call.aesKey && call.key) {
+                    console.log("set up decryption for receiving");
+                    setupPeerTransform(TransformOperation.Decrypt, event.receiver, call.worker, call.aesKey, call.key);
+                }
+                for (const stream of event.streams) {
+                    for (const track of stream.getTracks()) {
+                        call.remoteStream.addTrack(track);
+                    }
+                }
+                console.log(`ontrack success`);
+            }
+            catch (e) {
+                console.log(`ontrack error: ${e.message}`);
+            }
+        };
+    }
+    function setupCodecPreferences(call) {
+        // We assume VP8 encoding in the decode/encode stages to get the initial
+        // bytes to pass as plaintext so we enforce that here.
+        // VP8 is supported by all supports of webrtc.
+        // Use of VP8 by default may also reduce depacketisation issues.
+        // We do not encrypt the first couple of bytes of the payload so that the
+        // video elements can work by determining video keyframes and the opus mode
+        // being used. This appears to be necessary for any video feed at all.
+        // For VP8 this is the content described in
+        //   https://tools.ietf.org/html/rfc6386#section-9.1
+        // which is 10 bytes for key frames and 3 bytes for delta frames.
+        // For opus (where encodedFrame.type is not set) this is the TOC byte from
+        //   https://tools.ietf.org/html/rfc6716#section-3.1
+        var _a;
+        const capabilities = RTCRtpSender.getCapabilities("video");
+        if (capabilities) {
+            const { codecs } = capabilities;
+            const selectedCodecIndex = codecs.findIndex((c) => c.mimeType === "video/VP8");
+            const selectedCodec = codecs[selectedCodecIndex];
+            codecs.splice(selectedCodecIndex, 1);
+            codecs.unshift(selectedCodec);
+            for (const t of call.connection.getTransceivers()) {
+                if (((_a = t.sender.track) === null || _a === void 0 ? void 0 : _a.kind) === "video") {
+                    t.setCodecPreferences(codecs);
+                }
+            }
+        }
+    }
+    async function replaceMedia(call, camera) {
+        const videos = getVideoElements();
+        if (!videos)
+            throw Error("no video elements");
+        const pc = call.connection;
+        for (const t of call.localStream.getTracks())
+            t.stop();
+        call.localCamera = camera;
+        const localStream = await getLocalMediaStream(call.localMedia, camera);
+        replaceTracks(pc, localStream.getVideoTracks());
+        replaceTracks(pc, localStream.getAudioTracks());
+        call.localStream = localStream;
+        videos.local.srcObject = localStream;
+    }
+    function replaceTracks(pc, tracks) {
+        if (!tracks.length)
+            return;
+        const sender = pc.getSenders().find((s) => { var _a; return ((_a = s.track) === null || _a === void 0 ? void 0 : _a.kind) === tracks[0].kind; });
+        if (sender)
+            for (const t of tracks)
+                sender.replaceTrack(t);
+    }
+    function setupPeerTransform(operation, peer, worker, aesKey, key) {
+        if (worker && "RTCRtpScriptTransform" in window) {
+            console.log(`${operation} with worker & RTCRtpScriptTransform`);
+            peer.transform = new RTCRtpScriptTransform(worker, { operation, aesKey });
+        }
+        else if ("createEncodedStreams" in peer) {
+            const { readable, writable } = peer.createEncodedStreams();
+            if (worker) {
+                console.log(`${operation} with worker`);
+                worker.postMessage({ operation, readable, writable, aesKey }, [readable, writable]);
+            }
+            else {
+                console.log(`${operation} without worker`);
+                const transform = callCrypto.transformFrame[operation](key);
+                readable.pipeThrough(new TransformStream({ transform })).pipeTo(writable);
+            }
+        }
+        else {
+            console.log(`no ${operation}`);
+        }
+    }
+    function getLocalMediaStream(mediaType, facingMode) {
+        const constraints = callMediaConstraints(mediaType, facingMode);
+        return navigator.mediaDevices.getUserMedia(constraints);
+    }
+    function callMediaConstraints(mediaType, facingMode) {
+        switch (mediaType) {
+            case CallMediaType.Audio:
+                return { audio: true, video: false };
+            case CallMediaType.Video:
+                return {
+                    audio: true,
+                    video: {
+                        frameRate: 24,
+                        width: {
+                            min: 480,
+                            ideal: 720,
+                            max: 1280,
+                        },
+                        aspectRatio: 1.33,
+                        facingMode,
+                    },
+                };
+        }
+    }
+    function supportsInsertableStreams(useWorker) {
+        return (("createEncodedStreams" in RTCRtpSender.prototype && "createEncodedStreams" in RTCRtpReceiver.prototype) ||
+            (!!useWorker && "RTCRtpScriptTransform" in window));
+    }
+    function resetVideoElements() {
+        const videos = getVideoElements();
+        if (!videos)
+            return;
+        videos.local.srcObject = null;
+        videos.remote.srcObject = null;
+    }
+    function getVideoElements() {
+        const local = document.getElementById("local-video-stream");
+        const remote = document.getElementById("remote-video-stream");
+        if (!(local && remote && local instanceof HTMLMediaElement && remote instanceof HTMLMediaElement))
+            return;
+        return { local, remote };
+    }
+    // function setupVideoElement(video: HTMLElement) {
+    //   // TODO use display: none
+    //   video.style.opacity = "0"
+    //   video.onplaying = () => {
+    //     video.style.opacity = "1"
+    //   }
+    // }
+    function enableMedia(s, media, enable) {
+        const tracks = media == CallMediaType.Video ? s.getVideoTracks() : s.getAudioTracks();
+        for (const t of tracks)
+            t.enabled = enable;
+    }
+    return processCommand;
+})();
+// Cryptography function - it is loaded both in the main window and in worker context (if the worker is used)
+function callCryptoFunction() {
+    const initialPlainTextRequired = {
+        key: 10,
+        delta: 3,
+    };
+    const IV_LENGTH = 12;
+    function encryptFrame(key) {
+        return async (frame, controller) => {
+            const data = new Uint8Array(frame.data);
+            const n = initialPlainTextRequired[frame.type] || 1;
+            const iv = randomIV();
+            const initial = data.subarray(0, n);
+            const plaintext = data.subarray(n, data.byteLength);
+            try {
+                const ciphertext = new Uint8Array(plaintext.length ? await crypto.subtle.encrypt({ name: "AES-GCM", iv: iv.buffer }, key, plaintext) : 0);
+                frame.data = concatN(initial, ciphertext, iv).buffer;
+                controller.enqueue(frame);
+            }
+            catch (e) {
+                console.log(`encryption error ${e}`);
+                throw e;
+            }
+        };
+    }
+    function decryptFrame(key) {
+        return async (frame, controller) => {
+            const data = new Uint8Array(frame.data);
+            const n = initialPlainTextRequired[frame.type] || 1;
+            const initial = data.subarray(0, n);
+            const ciphertext = data.subarray(n, data.byteLength - IV_LENGTH);
+            const iv = data.subarray(data.byteLength - IV_LENGTH, data.byteLength);
+            try {
+                const plaintext = new Uint8Array(ciphertext.length ? await crypto.subtle.decrypt({ name: "AES-GCM", iv }, key, ciphertext) : 0);
+                frame.data = concatN(initial, plaintext).buffer;
+                controller.enqueue(frame);
+            }
+            catch (e) {
+                console.log(`decryption error ${e}`);
+                throw e;
+            }
+        };
+    }
+    function decodeAesKey(aesKey) {
+        const keyData = callCrypto.decodeBase64url(callCrypto.encodeAscii(aesKey));
+        return crypto.subtle.importKey("raw", keyData, { name: "AES-GCM", length: 256 }, true, ["encrypt", "decrypt"]);
+    }
+    function concatN(...bs) {
+        const a = new Uint8Array(bs.reduce((size, b) => size + b.byteLength, 0));
+        bs.reduce((offset, b) => {
+            a.set(b, offset);
+            return offset + b.byteLength;
+        }, 0);
+        return a;
+    }
+    function randomIV() {
+        return crypto.getRandomValues(new Uint8Array(IV_LENGTH));
+    }
+    const base64urlChars = new Uint8Array("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_".split("").map((c) => c.charCodeAt(0)));
+    const base64urlLookup = new Array(256);
+    base64urlChars.forEach((c, i) => (base64urlLookup[c] = i));
+    const char_equal = "=".charCodeAt(0);
+    function encodeAscii(s) {
+        const a = new Uint8Array(s.length);
+        let i = s.length;
+        while (i--)
+            a[i] = s.charCodeAt(i);
+        return a;
+    }
+    function decodeAscii(a) {
+        let s = "";
+        for (let i = 0; i < a.length; i++)
+            s += String.fromCharCode(a[i]);
+        return s;
+    }
+    function encodeBase64url(a) {
+        const len = a.length;
+        const b64len = Math.ceil(len / 3) * 4;
+        const b64 = new Uint8Array(b64len);
+        let j = 0;
+        for (let i = 0; i < len; i += 3) {
+            b64[j++] = base64urlChars[a[i] >> 2];
+            b64[j++] = base64urlChars[((a[i] & 3) << 4) | (a[i + 1] >> 4)];
+            b64[j++] = base64urlChars[((a[i + 1] & 15) << 2) | (a[i + 2] >> 6)];
+            b64[j++] = base64urlChars[a[i + 2] & 63];
+        }
+        if (len % 3)
+            b64[b64len - 1] = char_equal;
+        if (len % 3 === 1)
+            b64[b64len - 2] = char_equal;
+        return b64;
+    }
+    function decodeBase64url(b64) {
+        let len = b64.length;
+        if (len % 4)
+            return;
+        let bLen = (len * 3) / 4;
+        if (b64[len - 1] === char_equal) {
+            len--;
+            bLen--;
+            if (b64[len - 1] === char_equal) {
+                len--;
+                bLen--;
+            }
+        }
+        const bytes = new Uint8Array(bLen);
+        let i = 0;
+        let pos = 0;
+        while (i < len) {
+            const enc1 = base64urlLookup[b64[i++]];
+            const enc2 = i < len ? base64urlLookup[b64[i++]] : 0;
+            const enc3 = i < len ? base64urlLookup[b64[i++]] : 0;
+            const enc4 = i < len ? base64urlLookup[b64[i++]] : 0;
+            if (enc1 === undefined || enc2 === undefined || enc3 === undefined || enc4 === undefined)
+                return;
+            bytes[pos++] = (enc1 << 2) | (enc2 >> 4);
+            bytes[pos++] = ((enc2 & 15) << 4) | (enc3 >> 2);
+            bytes[pos++] = ((enc3 & 3) << 6) | (enc4 & 63);
+        }
+        return bytes;
+    }
+    return {
+        transformFrame: { encrypt: encryptFrame, decrypt: decryptFrame },
+        decodeAesKey,
+        encodeAscii,
+        decodeAscii,
+        encodeBase64url,
+        decodeBase64url,
+    };
+}
+// If the worker is used for decryption, this function code (as string) is used to load the worker via Blob
+// We have to use worker optionally, as it crashes in Android web view, regardless of how it is loaded
+function workerFunction() {
+    // encryption with createEncodedStreams support
+    self.addEventListener("message", async ({ data }) => {
+        await setupTransform(data);
+    });
+    // encryption using RTCRtpScriptTransform.
+    if ("RTCTransformEvent" in self) {
+        self.addEventListener("rtctransform", async ({ transformer }) => {
+            try {
+                const { operation, aesKey } = transformer.options;
+                const { readable, writable } = transformer;
+                await setupTransform({ operation, aesKey, readable, writable });
+                self.postMessage({ result: "setupTransform success" });
+            }
+            catch (e) {
+                self.postMessage({ message: `setupTransform error: ${e.message}` });
+            }
+        });
+    }
+    async function setupTransform({ operation, aesKey, readable, writable }) {
+        const key = await callCrypto.decodeAesKey(aesKey);
+        const transform = callCrypto.transformFrame[operation](key);
+        readable.pipeThrough(new TransformStream({ transform })).pipeTo(writable);
+    }
+}
+//# sourceMappingURL=call.js.map

apps/android/app/src/main/assets/www/lz-string.min.js

@@ -0,0 +1 @@
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apps/android/app/src/main/assets/www/style.css

@@ -0,0 +1,41 @@
+html,
+body {
+  padding: 0;
+  margin: 0;
+  background-color: black;
+}
+
+#remote-video-stream {
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+}
+
+#local-video-stream {
+  position: absolute;
+  width: 30%;
+  max-width: 30%;
+  object-fit: cover;
+  margin: 16px;
+  border-radius: 16px;
+  top: 0;
+  right: 0;
+}
+
+*::-webkit-media-controls {
+  display: none !important;
+  -webkit-appearance: none !important;
+}
+*::-webkit-media-controls-panel {
+  display: none !important;
+  -webkit-appearance: none !important;
+}
+*::-webkit-media-controls-play-button {
+  display: none !important;
+  -webkit-appearance: none !important;
+}
+*::-webkit-media-controls-start-playback-button {
+  display: none !important;
+  -webkit-appearance: none !important;
+}

apps/android/app/src/main/cpp/CMakeLists.txt

@@ -0,0 +1,68 @@
+# For more information about using CMake with Android Studio, read the
+# documentation: https://d.android.com/studio/projects/add-native-code.html
+
+# Sets the minimum version of CMake required to build the native library.
+
+cmake_minimum_required(VERSION 3.10.2)
+
+# Declares and names the project.
+
+project("app")
+
+# Creates and names a library, sets it as either STATIC
+# or SHARED, and provides the relative paths to its source code.
+# You can define multiple libraries, and CMake builds them for you.
+# Gradle automatically packages shared libraries with your APK.
+
+add_library( # Sets the name of the library.
+    app-lib
+
+    # Sets the library as a shared library.
+    SHARED
+
+    # Provides a relative path to your source file(s).
+    simplex-api.c)
+
+# Searches for a specified prebuilt library and stores the path as a
+# variable. Because CMake includes system libraries in the search path by
+# default, you only need to specify the name of the public NDK library
+# you want to add. CMake verifies that the library exists before
+# completing its build.
+
+find_library( # Sets the name of the path variable.
+    log-lib
+
+    # Specifies the name of the NDK library that
+    # you want CMake to locate.
+    log)
+
+find_library( # Sets the name of the path variable.
+    c-lib
+
+    # Specifies the name of the NDK library that
+    # you want CMake to locate.
+    c
+    NAMES libc.so
+    REQUIRED)
+
+add_library( simplex SHARED IMPORTED )
+set_target_properties( simplex PROPERTIES IMPORTED_LOCATION
+    ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libsimplex.so)
+
+add_library( support SHARED IMPORTED )
+set_target_properties( support PROPERTIES IMPORTED_LOCATION
+    ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libsupport.so)
+
+
+# Specifies libraries CMake should link to your target library. You
+# can link multiple libraries, such as libraries you define in this
+# build script, prebuilt third-party libraries, or system libraries.
+
+target_link_libraries( # Specifies the target library.
+    app-lib
+
+    simplex support
+
+    # Links the target library to the log library
+    # included in the NDK.
+    ${log-lib})

apps/android/app/src/main/cpp/simplex-api.c

@@ -0,0 +1,65 @@
+#include <jni.h>
+
+// from the RTS
+void hs_init(int * argc, char **argv[]);
+
+// from android-support
+void setLineBuffering(void);
+int pipe_std_to_socket(const char * name);
+
+JNIEXPORT jint JNICALL
+Java_chat_simplex_app_SimplexAppKt_pipeStdOutToSocket(JNIEnv *env, __unused jclass clazz, jstring socket_name) {
+    const char *name = (*env)->GetStringUTFChars(env, socket_name, JNI_FALSE);
+    int ret = pipe_std_to_socket(name);
+    (*env)->ReleaseStringUTFChars(env, socket_name, name);
+    return ret;
+}
+
+JNIEXPORT void JNICALL
+Java_chat_simplex_app_SimplexAppKt_initHS(__unused JNIEnv *env, __unused jclass clazz) {
+    hs_init(NULL, NULL);
+    setLineBuffering();
+}
+
+// from simplex-chat
+typedef void* chat_ctrl;
+
+extern chat_ctrl chat_init(const char *path);
+extern char *chat_send_cmd(chat_ctrl ctrl, const char *cmd);
+extern char *chat_recv_msg(chat_ctrl ctrl);
+extern char *chat_recv_msg_wait(chat_ctrl ctrl, const int wait);
+extern char *chat_parse_markdown(const char *str);
+
+JNIEXPORT jlong JNICALL
+Java_chat_simplex_app_SimplexAppKt_chatInit(JNIEnv *env, __unused jclass clazz, jstring datadir) {
+    const char *_data = (*env)->GetStringUTFChars(env, datadir, JNI_FALSE);
+    jlong res = (jlong)chat_init(_data);
+    (*env)->ReleaseStringUTFChars(env, datadir, _data);
+    return res;
+}
+
+JNIEXPORT jstring JNICALL
+Java_chat_simplex_app_SimplexAppKt_chatSendCmd(JNIEnv *env, __unused jclass clazz, jlong controller, jstring msg) {
+    const char *_msg = (*env)->GetStringUTFChars(env, msg, JNI_FALSE);
+    jstring res = (*env)->NewStringUTF(env, chat_send_cmd((void*)controller, _msg));
+    (*env)->ReleaseStringUTFChars(env, msg, _msg);
+    return res;
+}
+
+JNIEXPORT jstring JNICALL
+Java_chat_simplex_app_SimplexAppKt_chatRecvMsg(JNIEnv *env, __unused jclass clazz, jlong controller) {
+    return (*env)->NewStringUTF(env, chat_recv_msg((void*)controller));
+}
+
+JNIEXPORT jstring JNICALL
+Java_chat_simplex_app_SimplexAppKt_chatRecvMsgWait(JNIEnv *env, __unused jclass clazz, jlong controller, jint wait) {
+    return (*env)->NewStringUTF(env, chat_recv_msg_wait((void*)controller, wait));
+}
+
+JNIEXPORT jstring JNICALL
+Java_chat_simplex_app_SimplexAppKt_chatParseMarkdown(JNIEnv *env, __unused jclass clazz, jstring str) {
+    const char *_str = (*env)->GetStringUTFChars(env, str, JNI_FALSE);
+    jstring res = (*env)->NewStringUTF(env, chat_parse_markdown(_str));
+    (*env)->ReleaseStringUTFChars(env, str, _str);
+    return res;
+}

apps/android/app/src/main/java/chat/simplex/app/MainActivity.kt

@@ -0,0 +1,384 @@
+package chat.simplex.app
+
+import android.app.Application
+import android.content.Intent
+import android.net.Uri
+import android.os.Bundle
+import android.os.SystemClock.elapsedRealtime
+import android.util.Log
+import androidx.activity.compose.setContent
+import androidx.activity.viewModels
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Surface
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Replay
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.fragment.app.FragmentActivity
+import androidx.lifecycle.*
+import androidx.work.*
+import chat.simplex.app.model.ChatModel
+import chat.simplex.app.model.NtfManager
+import chat.simplex.app.ui.theme.SimpleButton
+import chat.simplex.app.ui.theme.SimpleXTheme
+import chat.simplex.app.views.SplashView
+import chat.simplex.app.views.call.ActiveCallView
+import chat.simplex.app.views.call.IncomingCallAlertView
+import chat.simplex.app.views.chat.ChatView
+import chat.simplex.app.views.chatlist.ChatListView
+import chat.simplex.app.views.chatlist.openChat
+import chat.simplex.app.views.helpers.*
+import chat.simplex.app.views.newchat.connectViaUri
+import chat.simplex.app.views.newchat.withUriAction
+import chat.simplex.app.views.onboarding.*
+import kotlinx.coroutines.delay
+import java.util.concurrent.TimeUnit
+
+class MainActivity: FragmentActivity(), LifecycleEventObserver {
+  private val vm by viewModels<SimplexViewModel>()
+  private val chatController by lazy { (application as SimplexApp).chatController }
+  private val userAuthorized = mutableStateOf<Boolean?>(null)
+  private val enteredBackground = mutableStateOf<Long?>(null)
+  private val laFailed = mutableStateOf(false)
+
+  override fun onCreate(savedInstanceState: Bundle?) {
+    super.onCreate(savedInstanceState)
+    ProcessLifecycleOwner.get().lifecycle.addObserver(this)
+    // testJson()
+    val m = vm.chatModel
+    processNotificationIntent(intent, m)
+    setContent {
+      SimpleXTheme {
+        Surface(
+          Modifier
+            .background(MaterialTheme.colors.background)
+            .fillMaxSize()
+        ) {
+          MainPage(
+            m,
+            userAuthorized,
+            laFailed,
+            ::runAuthenticate,
+            ::setPerformLA,
+            showLANotice = { m.controller.showLANotice(this) }
+          )
+        }
+      }
+    }
+    SimplexApp.context.schedulePeriodicServiceRestartWorker()
+  }
+
+  override fun onNewIntent(intent: Intent?) {
+    super.onNewIntent(intent)
+    processIntent(intent, vm.chatModel)
+  }
+
+  override fun onStateChanged(source: LifecycleOwner, event: Lifecycle.Event) {
+    withApi {
+      when (event) {
+        Lifecycle.Event.ON_STOP -> {
+          enteredBackground.value = elapsedRealtime()
+        }
+        Lifecycle.Event.ON_START -> {
+          val enteredBackgroundVal = enteredBackground.value
+          if (enteredBackgroundVal == null || elapsedRealtime() - enteredBackgroundVal >= 30 * 1e+3) {
+            runAuthenticate()
+          }
+        }
+        else -> {}
+      }
+    }
+  }
+
+  private fun runAuthenticate() {
+    val m = vm.chatModel
+    if (!m.controller.appPrefs.performLA.get()) {
+      userAuthorized.value = true
+    } else {
+      userAuthorized.value = false
+      ModalManager.shared.closeModals()
+      authenticate(
+        generalGetString(R.string.auth_unlock),
+        generalGetString(R.string.auth_log_in_using_credential),
+        this@MainActivity,
+        completed = { laResult ->
+          when (laResult) {
+            LAResult.Success -> {
+              userAuthorized.value = true
+            }
+            is LAResult.Error -> {
+              laFailed.value = true
+              laErrorToast(applicationContext, laResult.errString)
+            }
+            LAResult.Failed -> {
+              laFailed.value = true
+              laFailedToast(applicationContext)
+            }
+            LAResult.Unavailable -> {
+              userAuthorized.value = true
+              m.performLA.value = false
+              m.controller.appPrefs.performLA.set(false)
+              laUnavailableTurningOffAlert()
+            }
+          }
+        }
+      )
+    }
+  }
+
+  private fun setPerformLA(on: Boolean) {
+    vm.chatModel.controller.appPrefs.laNoticeShown.set(true)
+    if (on) {
+      enableLA()
+    } else {
+      disableLA()
+    }
+  }
+
+  private fun enableLA() {
+    val m = vm.chatModel
+    authenticate(
+      generalGetString(R.string.auth_enable_simplex_lock),
+      generalGetString(R.string.auth_confirm_credential),
+      this@MainActivity,
+      completed = { laResult ->
+        val prefPerformLA = m.controller.appPrefs.performLA
+        when (laResult) {
+          LAResult.Success -> {
+            m.performLA.value = true
+            prefPerformLA.set(true)
+            laTurnedOnAlert()
+          }
+          is LAResult.Error -> {
+            m.performLA.value = false
+            prefPerformLA.set(false)
+            laErrorToast(applicationContext, laResult.errString)
+          }
+          LAResult.Failed -> {
+            m.performLA.value = false
+            prefPerformLA.set(false)
+            laFailedToast(applicationContext)
+          }
+          LAResult.Unavailable -> {
+            m.performLA.value = false
+            prefPerformLA.set(false)
+            laUnavailableInstructionAlert()
+          }
+        }
+      }
+    )
+  }
+
+  private fun disableLA() {
+    val m = vm.chatModel
+    authenticate(
+      generalGetString(R.string.auth_disable_simplex_lock),
+      generalGetString(R.string.auth_confirm_credential),
+      this@MainActivity,
+      completed = { laResult ->
+        val prefPerformLA = m.controller.appPrefs.performLA
+        when (laResult) {
+          LAResult.Success -> {
+            m.performLA.value = false
+            prefPerformLA.set(false)
+          }
+          is LAResult.Error -> {
+            m.performLA.value = true
+            prefPerformLA.set(true)
+            laErrorToast(applicationContext, laResult.errString)
+          }
+          LAResult.Failed -> {
+            m.performLA.value = true
+            prefPerformLA.set(true)
+            laFailedToast(applicationContext)
+          }
+          LAResult.Unavailable -> {
+            m.performLA.value = false
+            prefPerformLA.set(false)
+            laUnavailableTurningOffAlert()
+          }
+        }
+      }
+    )
+  }
+}
+
+class SimplexViewModel(application: Application): AndroidViewModel(application) {
+  val app = getApplication<SimplexApp>()
+  val chatModel = app.chatModel
+}
+
+@Composable
+fun MainPage(
+  chatModel: ChatModel,
+  userAuthorized: MutableState<Boolean?>,
+  laFailed: MutableState<Boolean>,
+  runAuthenticate: () -> Unit,
+  setPerformLA: (Boolean) -> Unit,
+  showLANotice: () -> Unit
+) {
+  // this with LaunchedEffect(userAuthorized.value) fixes bottom sheet visibly collapsing after authentication
+  var chatsAccessAuthorized by remember { mutableStateOf(false) }
+  LaunchedEffect(userAuthorized.value) {
+    if (chatModel.controller.appPrefs.performLA.get()) {
+      delay(500L)
+    }
+    chatsAccessAuthorized = userAuthorized.value == true
+  }
+  var showAdvertiseLAAlert by remember { mutableStateOf(false) }
+  LaunchedEffect(showAdvertiseLAAlert) {
+    if (
+      !chatModel.controller.appPrefs.laNoticeShown.get()
+      && showAdvertiseLAAlert
+      && chatModel.onboardingStage.value == OnboardingStage.OnboardingComplete
+      && chatModel.chats.isNotEmpty()
+      && chatModel.activeCallInvitation.value == null
+    ) {
+      showLANotice()
+    }
+  }
+  LaunchedEffect(chatModel.showAdvertiseLAUnavailableAlert.value) {
+    if (chatModel.showAdvertiseLAUnavailableAlert.value) {
+      laUnavailableInstructionAlert()
+    }
+  }
+  LaunchedEffect(chatModel.clearOverlays.value) {
+    if (chatModel.clearOverlays.value) {
+      ModalManager.shared.closeModals()
+      chatModel.clearOverlays.value = false
+    }
+  }
+
+  @Composable
+  fun retryAuthView() {
+    Box(
+      Modifier.fillMaxSize(),
+      contentAlignment = Alignment.Center
+    ) {
+      SimpleButton(
+        stringResource(R.string.auth_retry),
+        icon = Icons.Outlined.Replay,
+        click = {
+          laFailed.value = false
+          runAuthenticate()
+        }
+      )
+    }
+  }
+
+  Box {
+    val onboarding = chatModel.onboardingStage.value
+    val userCreated = chatModel.userCreated.value
+    when {
+      onboarding == null || userCreated == null -> SplashView()
+      !chatsAccessAuthorized -> {
+        if (chatModel.controller.appPrefs.performLA.get() && laFailed.value) {
+          retryAuthView()
+        } else {
+          SplashView()
+        }
+      }
+      onboarding == OnboardingStage.OnboardingComplete && userCreated -> {
+        Box {
+          if (chatModel.showCallView.value) ActiveCallView(chatModel)
+          else {
+            showAdvertiseLAAlert = true
+            val stopped = chatModel.chatRunning.value == false
+            if (chatModel.chatId.value == null) ChatListView(chatModel, setPerformLA, stopped)
+            else ChatView(chatModel)
+          }
+        }
+      }
+      onboarding == OnboardingStage.Step1_SimpleXInfo ->
+        Box(Modifier.padding(horizontal = 20.dp)) {
+          SimpleXInfo(chatModel, onboarding = true)
+        }
+      onboarding == OnboardingStage.Step2_CreateProfile -> CreateProfile(chatModel)
+    }
+    ModalManager.shared.showInView()
+    val invitation = chatModel.activeCallInvitation.value
+    if (invitation != null) IncomingCallAlertView(invitation, chatModel)
+    AlertManager.shared.showInView()
+  }
+}
+
+fun processNotificationIntent(intent: Intent?, chatModel: ChatModel) {
+  when (intent?.action) {
+    NtfManager.OpenChatAction -> {
+      val chatId = intent.getStringExtra("chatId")
+      Log.d(TAG, "processNotificationIntent: OpenChatAction $chatId")
+      if (chatId != null) {
+        val cInfo = chatModel.getChat(chatId)?.chatInfo
+        chatModel.clearOverlays.value = true
+        if (cInfo != null) withApi { openChat(cInfo, chatModel) }
+      }
+    }
+    NtfManager.ShowChatsAction -> {
+      Log.d(TAG, "processNotificationIntent: ShowChatsAction")
+      chatModel.chatId.value = null
+      chatModel.clearOverlays.value = true
+    }
+    NtfManager.AcceptCallAction -> {
+      val chatId = intent.getStringExtra("chatId")
+      if (chatId == null || chatId == "") return
+      Log.d(TAG, "processNotificationIntent: AcceptCallAction $chatId")
+      chatModel.clearOverlays.value = true
+      val invitation = chatModel.callInvitations[chatId]
+      if (invitation == null) {
+        AlertManager.shared.showAlertMsg(generalGetString(R.string.call_already_ended))
+      } else {
+        chatModel.callManager.acceptIncomingCall(invitation = invitation)
+      }
+    }
+  }
+}
+
+fun processIntent(intent: Intent?, chatModel: ChatModel) {
+  when (intent?.action) {
+    "android.intent.action.VIEW" -> {
+      val uri = intent.data
+      if (uri != null) connectIfOpenedViaUri(uri, chatModel)
+    }
+  }
+}
+
+fun connectIfOpenedViaUri(uri: Uri, chatModel: ChatModel) {
+  Log.d(TAG, "connectIfOpenedViaUri: opened via link")
+  if (chatModel.currentUser.value == null) {
+    // TODO open from chat list view
+    chatModel.appOpenUrl.value = uri
+  } else {
+    withUriAction(uri) { action ->
+      val title = when (action) {
+        "contact" -> generalGetString(R.string.connect_via_contact_link)
+        "invitation" -> generalGetString(R.string.connect_via_invitation_link)
+        else -> {
+          Log.e(TAG, "URI has unexpected action. Alert shown.")
+          action
+        }
+      }
+      AlertManager.shared.showAlertMsg(
+        title = title,
+        text = generalGetString(R.string.profile_will_be_sent_to_contact_sending_link),
+        confirmText = generalGetString(R.string.connect_via_link_verb),
+        onConfirm = {
+          withApi {
+            Log.d(TAG, "connectIfOpenedViaUri: connecting")
+            connectViaUri(chatModel, action, uri)
+          }
+        }
+      )
+    }
+  }
+}
+//fun testJson() {
+//  val str: String = """
+//  """.trimIndent()
+//
+//  println(json.decodeFromString<APIResponse>(str))
+//}

apps/android/app/src/main/java/chat/simplex/app/SimplexApp.kt

@@ -0,0 +1,155 @@
+package chat.simplex.app
+
+import android.app.Application
+import android.net.LocalServerSocket
+import android.util.Log
+import androidx.lifecycle.*
+import androidx.work.*
+import chat.simplex.app.model.*
+import chat.simplex.app.views.helpers.getFilesDirectory
+import chat.simplex.app.views.helpers.withApi
+import chat.simplex.app.views.onboarding.OnboardingStage
+import kotlinx.coroutines.*
+import java.io.BufferedReader
+import java.io.InputStreamReader
+import java.util.*
+import java.util.concurrent.Semaphore
+import java.util.concurrent.TimeUnit
+import kotlin.concurrent.thread
+
+const val TAG = "SIMPLEX"
+
+// ghc's rts
+external fun initHS()
+// android-support
+external fun pipeStdOutToSocket(socketName: String) : Int
+
+// SimpleX API
+typealias ChatCtrl = Long
+external fun chatInit(path: String): ChatCtrl
+external fun chatSendCmd(ctrl: ChatCtrl, msg: String): String
+external fun chatRecvMsg(ctrl: ChatCtrl): String
+external fun chatRecvMsgWait(ctrl: ChatCtrl, timeout: Int): String
+external fun chatParseMarkdown(str: String): String
+
+class SimplexApp: Application(), LifecycleEventObserver {
+  val chatController: ChatController by lazy {
+    val ctrl = chatInit(getFilesDirectory(applicationContext))
+    ChatController(ctrl, ntfManager, applicationContext, appPreferences)
+  }
+
+  val chatModel: ChatModel by lazy {
+    chatController.chatModel
+  }
+
+  private val ntfManager: NtfManager by lazy {
+    NtfManager(applicationContext, appPreferences)
+  }
+
+  private val appPreferences: AppPreferences by lazy {
+    AppPreferences(applicationContext)
+  }
+
+  override fun onCreate() {
+    super.onCreate()
+    context = this
+    ProcessLifecycleOwner.get().lifecycle.addObserver(this)
+    withApi {
+      val user = chatController.apiGetActiveUser()
+      if (user == null) {
+        chatModel.onboardingStage.value = OnboardingStage.Step1_SimpleXInfo
+      } else {
+        chatController.startChat(user)
+      }
+    }
+  }
+
+  override fun onStateChanged(source: LifecycleOwner, event: Lifecycle.Event) {
+    Log.d(TAG, "onStateChanged: $event")
+    withApi {
+      when (event) {
+        Lifecycle.Event.ON_STOP ->
+          if (!appPreferences.runServiceInBackground.get()) SimplexService.stop(applicationContext)
+        Lifecycle.Event.ON_START ->
+          if (chatModel.chatRunning.value != false)  SimplexService.start(applicationContext)
+        Lifecycle.Event.ON_RESUME ->
+          if (chatModel.onboardingStage.value == OnboardingStage.OnboardingComplete) {
+            chatController.showBackgroundServiceNoticeIfNeeded()
+          }
+        else -> {}
+      }
+    }
+  }
+
+  fun allowToStartServiceAfterAppExit() = with(chatModel.controller) {
+    appPrefs.runServiceInBackground.get() && isIgnoringBatteryOptimizations(chatModel.controller.appContext)
+  }
+
+  /*
+  * It takes 1-10 milliseconds to process this function. Better to do it in a background thread
+  * */
+  fun schedulePeriodicServiceRestartWorker() = CoroutineScope(Dispatchers.Default).launch {
+    if (!allowToStartServiceAfterAppExit()) {
+      return@launch
+    }
+    val workerVersion = chatController.appPrefs.autoRestartWorkerVersion.get()
+    val workPolicy = if (workerVersion == SimplexService.SERVICE_START_WORKER_VERSION) {
+      Log.d(TAG, "ServiceStartWorker version matches: choosing KEEP as existing work policy")
+      ExistingPeriodicWorkPolicy.KEEP
+    } else {
+      Log.d(TAG, "ServiceStartWorker version DOES NOT MATCH: choosing REPLACE as existing work policy")
+      chatController.appPrefs.autoRestartWorkerVersion.set(SimplexService.SERVICE_START_WORKER_VERSION)
+      ExistingPeriodicWorkPolicy.REPLACE
+    }
+    val work = PeriodicWorkRequestBuilder<SimplexService.ServiceStartWorker>(SimplexService.SERVICE_START_WORKER_INTERVAL_MINUTES, TimeUnit.MINUTES)
+      .addTag(SimplexService.TAG)
+      .addTag(SimplexService.SERVICE_START_WORKER_WORK_NAME_PERIODIC)
+      .build()
+    Log.d(TAG, "ServiceStartWorker: Scheduling period work every ${SimplexService.SERVICE_START_WORKER_INTERVAL_MINUTES} minutes")
+    WorkManager.getInstance(context)?.enqueueUniquePeriodicWork(SimplexService.SERVICE_START_WORKER_WORK_NAME_PERIODIC, workPolicy, work)
+  }
+
+  companion object {
+    lateinit var context: SimplexApp private set
+
+    init {
+      val socketName = BuildConfig.APPLICATION_ID + ".local.socket.address.listen.native.cmd2"
+      val s = Semaphore(0)
+      thread(name="stdout/stderr pipe") {
+        Log.d(TAG, "starting server")
+        val server = LocalServerSocket(socketName)
+        Log.d(TAG, "started server")
+        s.release()
+        val receiver = server.accept()
+        Log.d(TAG, "started receiver")
+        val logbuffer = FifoQueue<String>(500)
+        if (receiver != null) {
+          val inStream = receiver.inputStream
+          val inStreamReader = InputStreamReader(inStream)
+          val input = BufferedReader(inStreamReader)
+          Log.d(TAG, "starting receiver loop")
+          while (true) {
+            val line = input.readLine() ?: break
+            Log.w("$TAG (stdout/stderr)", line)
+            logbuffer.add(line)
+          }
+          Log.w(TAG, "exited receiver loop")
+        }
+      }
+
+      System.loadLibrary("app-lib")
+
+      s.acquire()
+      pipeStdOutToSocket(socketName)
+
+      initHS()
+    }
+  }
+}
+
+class FifoQueue<E>(private var capacity: Int) : LinkedList<E>() {
+  override fun add(element: E): Boolean {
+    if(size > capacity) removeFirst()
+    return super.add(element)
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/SimplexService.kt

@@ -0,0 +1,275 @@
+package chat.simplex.app
+
+import android.app.*
+import android.content.*
+import android.content.pm.PackageManager
+import android.os.*
+import android.provider.Settings
+import android.util.Log
+import androidx.core.app.NotificationCompat
+import androidx.core.content.ContextCompat
+import androidx.work.*
+import chat.simplex.app.views.helpers.withApi
+import chat.simplex.app.views.onboarding.OnboardingStage
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+
+// based on:
+// https://robertohuertas.com/2019/06/29/android_foreground_services/
+// https://github.com/binwiederhier/ntfy-android/blob/main/app/src/main/java/io/heckel/ntfy/service/SubscriberService.kt
+
+class SimplexService: Service() {
+  private var wakeLock: PowerManager.WakeLock? = null
+  private var isServiceStarted = false
+  private var isStartingService = false
+  private var notificationManager: NotificationManager? = null
+  private var serviceNotification: Notification? = null
+  private val chatController by lazy { (application as SimplexApp).chatController }
+
+  override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+    Log.d(TAG, "onStartCommand startId: $startId")
+    if (intent != null) {
+      val action = intent.action
+      Log.d(TAG, "intent action $action")
+      when (action) {
+        Action.START.name -> startService()
+        Action.STOP.name -> stopService()
+        else -> Log.e(TAG, "No action in the intent")
+      }
+    } else {
+      Log.d(TAG, "null intent. Probably restarted by the system.")
+    }
+    return START_STICKY // to restart if killed
+  }
+
+  override fun onCreate() {
+    super.onCreate()
+    Log.d(TAG, "Simplex service created")
+    val title = getString(R.string.simplex_service_notification_title)
+    val text = getString(R.string.simplex_service_notification_text)
+    notificationManager = createNotificationChannel()
+    serviceNotification = createNotification(title, text)
+    startForeground(SIMPLEX_SERVICE_ID, serviceNotification)
+  }
+
+  override fun onDestroy() {
+    Log.d(TAG, "Simplex service destroyed")
+    stopService()
+
+    // If private notifications are enabled and battery optimization is disabled, restart the service
+    if (SimplexApp.context.allowToStartServiceAfterAppExit())
+      sendBroadcast(Intent(this, AutoRestartReceiver::class.java))
+    super.onDestroy()
+  }
+
+  private fun startService() {
+    Log.d(TAG, "SimplexService startService")
+    if (isServiceStarted || isStartingService) return
+    val self = this
+    isStartingService = true
+    withApi {
+      try {
+        val user = chatController.apiGetActiveUser()
+        if (user == null) {
+          chatController.chatModel.onboardingStage.value = OnboardingStage.Step1_SimpleXInfo
+        } else {
+          Log.w(TAG, "Starting foreground service")
+          chatController.startChat(user)
+          isServiceStarted = true
+          saveServiceState(self, ServiceState.STARTED)
+          wakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager).run {
+            newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, WAKE_LOCK_TAG).apply {
+              acquire()
+            }
+          }
+        }
+      } finally {
+        isStartingService = false
+      }
+    }
+  }
+
+  private fun stopService() {
+    Log.d(TAG, "Stopping foreground service")
+    try {
+      wakeLock?.let {
+        while (it.isHeld) it.release() // release all, in case acquired more than once
+      }
+      wakeLock = null
+      stopForeground(true)
+      stopSelf()
+    } catch (e: Exception) {
+      Log.d(TAG, "Service stopped without being started: ${e.message}")
+    }
+    isServiceStarted = false
+    saveServiceState(this, ServiceState.STOPPED)
+  }
+
+  private fun createNotificationChannel(): NotificationManager? {
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+      val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+      val channel = NotificationChannel(NOTIFICATION_CHANNEL_ID, NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_LOW).let {
+        it.setShowBadge(false) // no long-press badge
+        it
+      }
+      notificationManager.createNotificationChannel(channel)
+      return notificationManager
+    }
+    return null
+  }
+
+  private fun createNotification(title: String, text: String): Notification {
+    val pendingIntent: PendingIntent = Intent(this, MainActivity::class.java).let { notificationIntent ->
+      PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_IMMUTABLE)
+    }
+
+    val builder =  NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID)
+      .setSmallIcon(R.drawable.ntf_service_icon)
+      .setColor(0x88FFFF)
+      .setContentTitle(title)
+      .setContentText(text)
+      .setContentIntent(pendingIntent)
+      .setSilent(true)
+      .setShowWhen(false) // no date/time
+
+    // Shows a button which opens notification channel settings
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+      val flags = PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE
+      val setupIntent = Intent(Settings.ACTION_CHANNEL_NOTIFICATION_SETTINGS)
+      setupIntent.putExtra(Settings.EXTRA_APP_PACKAGE, packageName)
+      setupIntent.putExtra(Settings.EXTRA_CHANNEL_ID, NOTIFICATION_CHANNEL_ID)
+      val setup = PendingIntent.getActivity(this, 0, setupIntent, flags)
+      builder.addAction(0, getString(R.string.hide_notification), setup)
+    }
+
+    return builder.build()
+  }
+
+  override fun onBind(intent: Intent): IBinder? {
+    return null // no binding
+  }
+
+  // re-schedules the task when "Clear recent apps" is pressed
+  override fun onTaskRemoved(rootIntent: Intent) {
+    // If private notifications aren't enabled or battery optimization isn't disabled, we shouldn't restart the service
+    if (!SimplexApp.context.allowToStartServiceAfterAppExit()) {
+      return
+    }
+
+    val restartServiceIntent = Intent(applicationContext, SimplexService::class.java).also {
+      it.setPackage(packageName)
+    };
+    val restartServicePendingIntent: PendingIntent = PendingIntent.getService(this, 1, restartServiceIntent, PendingIntent.FLAG_ONE_SHOT or PendingIntent.FLAG_IMMUTABLE);
+    applicationContext.getSystemService(Context.ALARM_SERVICE);
+    val alarmService: AlarmManager = applicationContext.getSystemService(Context.ALARM_SERVICE) as AlarmManager;
+    alarmService.set(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime() + 1000, restartServicePendingIntent);
+  }
+
+  // restart on reboot
+  class StartReceiver: BroadcastReceiver() {
+    override fun onReceive(context: Context, intent: Intent) {
+      Log.d(TAG, "StartReceiver: onReceive called")
+      scheduleStart(context)
+    }
+    companion object {
+      fun toggleReceiver(enable: Boolean) {
+        Log.d(TAG, "StartReceiver: toggleReceiver enabled: $enable")
+        val component = ComponentName(BuildConfig.APPLICATION_ID, StartReceiver::class.java.name)
+        SimplexApp.context.packageManager.setComponentEnabledSetting(
+          component,
+          if (enable) PackageManager.COMPONENT_ENABLED_STATE_ENABLED else PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
+          PackageManager.DONT_KILL_APP
+        )
+      }
+    }
+  }
+
+  // restart on destruction
+  class AutoRestartReceiver: BroadcastReceiver() {
+    override fun onReceive(context: Context, intent: Intent) {
+      Log.d(TAG, "AutoRestartReceiver: onReceive called")
+      scheduleStart(context)
+    }
+  }
+
+  class ServiceStartWorker(private val context: Context, params: WorkerParameters): CoroutineWorker(context, params) {
+    override suspend fun doWork(): Result {
+      val id = this.id
+      if (context.applicationContext !is Application) {
+        Log.d(TAG, "ServiceStartWorker: Failed, no application found (work ID: $id)")
+        return Result.failure()
+      }
+      if (getServiceState(context) == ServiceState.STARTED) {
+        Log.d(TAG, "ServiceStartWorker: Starting foreground service (work ID: $id)")
+        start(context)
+      }
+      return Result.success()
+    }
+  }
+
+  enum class Action {
+    START,
+    STOP
+  }
+
+  enum class ServiceState {
+    STARTED,
+    STOPPED,
+  }
+
+  companion object {
+    const val TAG = "SIMPLEX_SERVICE"
+    const val NOTIFICATION_CHANNEL_ID = "chat.simplex.app.SIMPLEX_SERVICE_NOTIFICATION"
+    const val NOTIFICATION_CHANNEL_NAME = "SimpleX Chat service"
+    const val SIMPLEX_SERVICE_ID = 6789
+    const val SERVICE_START_WORKER_VERSION = BuildConfig.VERSION_CODE
+    const val SERVICE_START_WORKER_INTERVAL_MINUTES = 3 * 60L
+    const val SERVICE_START_WORKER_WORK_NAME_PERIODIC = "SimplexAutoRestartWorkerPeriodic" // Do not change!
+
+    private const val WAKE_LOCK_TAG = "SimplexService::lock"
+    private const val SHARED_PREFS_ID = "chat.simplex.app.SIMPLEX_SERVICE_PREFS"
+    private const val SHARED_PREFS_SERVICE_STATE = "SIMPLEX_SERVICE_STATE"
+    private const val WORK_NAME_ONCE = "ServiceStartWorkerOnce"
+
+    fun scheduleStart(context: Context) {
+      Log.d(TAG, "Enqueuing work to start subscriber service")
+      val workManager = WorkManager.getInstance(context)
+      val startServiceRequest = OneTimeWorkRequest.Builder(ServiceStartWorker::class.java).build()
+      workManager.enqueueUniqueWork(WORK_NAME_ONCE, ExistingWorkPolicy.KEEP, startServiceRequest) // Unique avoids races!
+    }
+
+    suspend fun start(context: Context) = serviceAction(context, Action.START)
+
+    suspend fun stop(context: Context) = serviceAction(context, Action.STOP)
+
+    private suspend fun serviceAction(context: Context, action: Action) {
+      Log.d(TAG, "SimplexService serviceAction: ${action.name}")
+      withContext(Dispatchers.IO) {
+        Intent(context, SimplexService::class.java).also {
+          it.action = action.name
+          ContextCompat.startForegroundService(context, it)
+        }
+      }
+    }
+
+    fun restart(context: Context) {
+      Intent(context, SimplexService::class.java).also { intent ->
+        context.stopService(intent) // Service will auto-restart
+      }
+    }
+
+    fun saveServiceState(context: Context, state: ServiceState) {
+      getPreferences(context).edit()
+        .putString(SHARED_PREFS_SERVICE_STATE, state.name)
+        .apply()
+    }
+
+    fun getServiceState(context: Context): ServiceState {
+      val value = getPreferences(context)
+        .getString(SHARED_PREFS_SERVICE_STATE, ServiceState.STOPPED.name)
+      return ServiceState.valueOf(value!!)
+    }
+
+    private fun getPreferences(context: Context): SharedPreferences = context.getSharedPreferences(SHARED_PREFS_ID, Context.MODE_PRIVATE)
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/model/NtfManager.kt

@@ -0,0 +1,180 @@
+package chat.simplex.app.model
+
+import android.app.*
+import android.content.*
+import android.graphics.BitmapFactory
+import android.media.AudioAttributes
+import android.net.Uri
+import android.util.Log
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationManagerCompat
+import chat.simplex.app.*
+import chat.simplex.app.views.call.*
+import chat.simplex.app.views.helpers.base64ToBitmap
+import chat.simplex.app.views.helpers.generalGetString
+import kotlinx.datetime.Clock
+
+class NtfManager(val context: Context, private val appPreferences: AppPreferences) {
+  companion object {
+    const val MessageChannel: String = "chat.simplex.app.MESSAGE_NOTIFICATION"
+    const val MessageGroup: String = "chat.simplex.app.MESSAGE_NOTIFICATION"
+    const val OpenChatAction: String = "chat.simplex.app.OPEN_CHAT"
+    const val ShowChatsAction: String = "chat.simplex.app.SHOW_CHATS"
+
+    // DO NOT change notification channel settings / names
+    const val CallChannel: String = "chat.simplex.app.CALL_NOTIFICATION"
+    const val LockScreenCallChannel: String = "chat.simplex.app.LOCK_SCREEN_CALL_NOTIFICATION"
+    const val AcceptCallAction: String = "chat.simplex.app.ACCEPT_CALL"
+    const val CallNotificationId: Int = -1
+  }
+
+  private val manager: NotificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+  private var prevNtfTime = mutableMapOf<String, Long>()
+  private val msgNtfTimeoutMs = 30000L
+
+  init {
+    manager.createNotificationChannel(NotificationChannel(MessageChannel, "SimpleX Chat messages", NotificationManager.IMPORTANCE_HIGH))
+    manager.createNotificationChannel(NotificationChannel(LockScreenCallChannel, "SimpleX Chat calls (lock screen)", NotificationManager.IMPORTANCE_HIGH))
+    manager.createNotificationChannel(callNotificationChannel())
+  }
+
+  private fun callNotificationChannel(): NotificationChannel {
+    val callChannel = NotificationChannel(CallChannel, "SimpleX Chat calls", NotificationManager.IMPORTANCE_HIGH)
+    val attrs = AudioAttributes.Builder()
+      .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
+      .setUsage(AudioAttributes.USAGE_NOTIFICATION)
+      .build()
+    val soundUri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + context.packageName + "/" + R.raw.ring_once)
+    Log.d(TAG,"callNotificationChannel sound: $soundUri")
+    callChannel.setSound(soundUri, attrs)
+    callChannel.enableVibration(true)
+    return callChannel
+  }
+
+  fun cancelNotificationsForChat(chatId: String) {
+    prevNtfTime.remove(chatId)
+    manager.cancel(chatId.hashCode())
+    val msgNtfs = manager.activeNotifications.filter {
+      ntf -> ntf.notification.channelId == MessageChannel
+    }
+    if (msgNtfs.count() == 1) {
+      // Have a group notification with no children so cancel it
+      manager.cancel(0)
+    }
+  }
+
+  fun notifyMessageReceived(cInfo: ChatInfo, cItem: ChatItem) {
+    notifyMessageReceived(chatId = cInfo.id, displayName = cInfo.displayName, msgText = hideSecrets(cItem))
+  }
+
+  fun notifyMessageReceived(chatId: String, displayName: String, msgText: String) {
+    Log.d(TAG, "notifyMessageReceived $chatId")
+    val now = Clock.System.now().toEpochMilliseconds()
+    val recentNotification = (now - prevNtfTime.getOrDefault(chatId, 0) < msgNtfTimeoutMs)
+    prevNtfTime[chatId] = now
+
+    val notification = NotificationCompat.Builder(context, MessageChannel)
+      .setContentTitle(displayName)
+      .setContentText(msgText)
+      .setPriority(NotificationCompat.PRIORITY_HIGH)
+      .setGroup(MessageGroup)
+      .setGroupAlertBehavior(NotificationCompat.GROUP_ALERT_CHILDREN)
+      .setSmallIcon(R.drawable.ntf_icon)
+      .setColor(0x88FFFF)
+      .setAutoCancel(true)
+      .setContentIntent(chatPendingIntent(OpenChatAction, chatId))
+      .setSilent(recentNotification)
+      .build()
+
+    val summary = NotificationCompat.Builder(context, MessageChannel)
+      .setSmallIcon(R.drawable.ntf_icon)
+      .setColor(0x88FFFF)
+      .setGroup(MessageGroup)
+      .setGroupAlertBehavior(NotificationCompat.GROUP_ALERT_CHILDREN)
+      .setGroupSummary(true)
+      .setContentIntent(chatPendingIntent(ShowChatsAction))
+      .build()
+
+    with(NotificationManagerCompat.from(context)) {
+      // using cInfo.id only shows one notification per chat and updates it when the message arrives
+      notify(chatId.hashCode(), notification)
+      notify(0, summary)
+    }
+  }
+
+  fun notifyCallInvitation(invitation: RcvCallInvitation) {
+    if (isAppOnForeground(context)) return
+    val contactId = invitation.contact.id
+    Log.d(TAG, "notifyCallInvitation $contactId")
+    val keyguardManager = getKeyguardManager(context)
+    val image = invitation.contact.image
+    var ntfBuilder =
+      if (keyguardManager.isDeviceLocked && appPreferences.callOnLockScreen.get() != CallOnLockScreen.DISABLE) {
+        val fullScreenIntent = Intent(context, IncomingCallActivity::class.java)
+        val fullScreenPendingIntent = PendingIntent.getActivity(context, 0, fullScreenIntent, PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE)
+        NotificationCompat.Builder(context, LockScreenCallChannel)
+          .setFullScreenIntent(fullScreenPendingIntent, true)
+          .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
+          .setSilent(true)
+      } else {
+        val soundUri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + context.packageName + "/" + R.raw.ring_once)
+        NotificationCompat.Builder(context, CallChannel)
+          .setContentIntent(chatPendingIntent(OpenChatAction, invitation.contact.id))
+          .addAction(R.drawable.ntf_icon, generalGetString(R.string.accept), chatPendingIntent(AcceptCallAction, contactId))
+          .setSound(soundUri)
+      }
+    val text = generalGetString(
+      if (invitation.callType.media == CallMediaType.Video) {
+        if (invitation.sharedKey == null) R.string.video_call_no_encryption else R.string.encrypted_video_call
+      } else {
+        if (invitation.sharedKey == null) R.string.audio_call_no_encryption else R.string.encrypted_audio_call
+      }
+    )
+    ntfBuilder = ntfBuilder
+      .setContentTitle(invitation.contact.displayName)
+      .setContentText(text)
+      .setPriority(NotificationCompat.PRIORITY_HIGH)
+      .setCategory(NotificationCompat.CATEGORY_CALL)
+      .setSmallIcon(R.drawable.ntf_icon)
+      .setLargeIcon(if (image == null) BitmapFactory.decodeResource(context.resources, R.drawable.icon) else base64ToBitmap(image))
+      .setColor(0x88FFFF)
+      .setAutoCancel(true)
+    with(NotificationManagerCompat.from(context)) {
+      notify(CallNotificationId, ntfBuilder.build())
+    }
+  }
+
+  fun cancelCallNotification() {
+    manager.cancel(CallNotificationId)
+  }
+
+  private fun hideSecrets(cItem: ChatItem) : String {
+    val md = cItem.formattedText
+    return if (md == null) {
+      if (cItem.content.text != "") {
+        cItem.content.text
+      } else {
+        cItem.file?.fileName ?: ""
+      }
+    } else {
+      var res = ""
+      for (ft in md) {
+        res += if (ft.format is Format.Secret) "..." else ft.text
+      }
+      res
+    }
+  }
+
+  private fun chatPendingIntent(intentAction: String, chatId: String? = null): PendingIntent {
+    Log.d(TAG, "chatPendingIntent for $intentAction")
+    val uniqueInt = (System.currentTimeMillis() and 0xfffffff).toInt()
+    var intent = Intent(context, MainActivity::class.java)
+      .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP)
+      .setAction(intentAction)
+    if (chatId != null) intent = intent.putExtra("chatId", chatId)
+    return TaskStackBuilder.create(context).run {
+      addNextIntentWithParentStack(intent)
+      getPendingIntent(uniqueInt, PendingIntent.FLAG_IMMUTABLE)
+    }
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/ui/theme/Color.kt

@@ -0,0 +1,27 @@
+package chat.simplex.app.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple200 = Color(0xFFBB86FC)
+val Purple500 = Color(0xFF6200EE)
+val Purple700 = Color(0xFF3700B3)
+val Teal200 = Color(0xFF03DAC5)
+val Gray = Color(0x22222222)
+val SimplexBlue = Color(0, 136, 255, 255)  // If this value changes also need to update #0088ff in string resource files
+val SimplexGreen = Color(77, 218, 103, 255)
+val SecretColor = Color(0x40808080)
+val LightGray = Color(241, 242, 246, 255)
+val DarkGray = Color(43, 44, 46, 255)
+val HighOrLowlight = Color(139, 135, 134, 255)
+val MessagePreviewDark = Color(179, 175, 174, 255)
+val MessagePreviewLight = Color(49, 45, 44, 255)
+val ToolbarLight = Color(220, 220, 220, 12)
+val ToolbarDark = Color(80, 80, 80, 12)
+val SettingsBackgroundLight = Color(220, 216, 215, 90)
+val SettingsSecondaryLight = Color(200, 196, 195, 90)
+val GroupDark = Color(80, 80, 80, 60)
+val IncomingCallLight = Color(239, 237, 236, 255)
+val IncomingCallDark = Color(34, 30, 29, 255)
+val WarningOrange = Color(255, 127, 0, 255)
+val FileLight = Color(183, 190, 199, 255)
+val FileDark = Color(101, 101, 106, 255)

apps/android/app/src/main/java/chat/simplex/app/ui/theme/Shape.kt

@@ -0,0 +1,11 @@
+package chat.simplex.app.ui.theme
+
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.Shapes
+import androidx.compose.ui.unit.dp
+
+val Shapes = Shapes(
+  small = RoundedCornerShape(4.dp),
+  medium = RoundedCornerShape(4.dp),
+  large = RoundedCornerShape(0.dp)
+)

apps/android/app/src/main/java/chat/simplex/app/ui/theme/Theme.kt

@@ -0,0 +1,47 @@
+package chat.simplex.app.ui.theme
+
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.graphics.Color
+
+private val DarkColorPalette = darkColors(
+  primary = SimplexBlue,  // If this value changes also need to update #0088ff in string resource files
+  primaryVariant = SimplexGreen,
+  secondary = DarkGray,
+//  background = Color.Black,
+//  surface = Color.Black,
+//  background = Color(0xFF121212),
+//  surface = Color(0xFF121212),
+//  error = Color(0xFFCF6679),
+  onBackground = Color(0xFFFFFBFA),
+  onSurface = Color(0xFFFFFBFA),
+//  onError: Color = Color.Black,
+)
+private val LightColorPalette = lightColors(
+  primary = SimplexBlue,  // If this value changes also need to update #0088ff in string resource files
+  primaryVariant = SimplexGreen,
+  secondary = LightGray,
+//  background = Color.White,
+//  surface = Color.White
+//  onPrimary = Color.White,
+//  onSecondary = Color.Black,
+//  onBackground = Color.Black,
+//  onSurface = Color.Black,
+)
+
+@Composable
+fun SimpleXTheme(darkTheme: Boolean = isSystemInDarkTheme(), content: @Composable () -> Unit) {
+  val colors = if (darkTheme) {
+    DarkColorPalette
+  } else {
+    LightColorPalette
+  }
+
+  MaterialTheme(
+    colors = colors,
+    typography = Typography,
+    shapes = Shapes,
+    content = content
+  )
+}

apps/android/app/src/main/java/chat/simplex/app/ui/theme/Type.kt

@@ -0,0 +1,56 @@
+package chat.simplex.app.ui.theme
+
+import androidx.compose.material.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.*
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+
+// https://github.com/rsms/inter
+val Inter = FontFamily(
+  Font(R.font.inter_regular),
+  Font(R.font.inter_italic, style = FontStyle.Italic),
+  Font(R.font.inter_bold, weight = FontWeight.Bold),
+  Font(R.font.inter_semi_bold, weight = FontWeight.SemiBold),
+  Font(R.font.inter_medium, weight = FontWeight.Medium),
+  Font(R.font.inter_light, weight = FontWeight.Light),
+)
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+  h1 = TextStyle(
+    fontFamily = Inter,
+    fontWeight = FontWeight.Bold,
+    fontSize = 32.sp,
+  ),
+  h2 = TextStyle(
+    fontFamily = Inter,
+    fontWeight = FontWeight.Normal,
+    fontSize = 24.sp
+  ),
+  h3 = TextStyle(
+    fontFamily = Inter,
+    fontWeight = FontWeight.Normal,
+    fontSize = 18.5.sp
+  ),
+  body1 = TextStyle(
+    fontFamily = Inter,
+    fontWeight = FontWeight.Normal,
+    fontSize = 16.sp
+  ),
+  body2 = TextStyle(
+    fontFamily = Inter,
+    fontWeight = FontWeight.Normal,
+    fontSize = 14.sp
+  ),
+  button = TextStyle(
+    fontFamily = Inter,
+    fontWeight = FontWeight.Normal,
+    fontSize = 16.sp,
+  ),
+  caption = TextStyle(
+    fontFamily = Inter,
+    fontWeight = FontWeight.Normal,
+    fontSize = 18.sp
+  )
+)

apps/android/app/src/main/java/chat/simplex/app/views/SplashView.kt

@@ -0,0 +1,25 @@
+package chat.simplex.app.views
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Surface
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+
+@Composable
+fun SplashView() {
+  Surface(
+    Modifier
+      .background(MaterialTheme.colors.background)
+      .fillMaxSize()
+  ) {
+//    Image(
+//      painter = painterResource(R.drawable.logo),
+//      contentDescription = "Simplex Icon",
+//      modifier = Modifier
+//        .height(230.dp)
+//        .align(Alignment.Center)
+//    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/TerminalView.kt

@@ -0,0 +1,133 @@
+package chat.simplex.app.views
+
+import android.content.res.Configuration
+import androidx.activity.compose.BackHandler
+import androidx.compose.foundation.*
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.*
+import androidx.compose.foundation.text.selection.SelectionContainer
+import androidx.compose.material.*
+import androidx.compose.runtime.*
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.SimpleXTheme
+import chat.simplex.app.views.chat.*
+import chat.simplex.app.views.helpers.*
+import com.google.accompanist.insets.ProvideWindowInsets
+import com.google.accompanist.insets.navigationBarsWithImePadding
+import kotlinx.coroutines.launch
+
+@Composable
+fun TerminalView(chatModel: ChatModel, close: () -> Unit) {
+  val composeState = remember { mutableStateOf(ComposeState(useLinkPreviews = false)) }
+  BackHandler(onBack = close)
+  TerminalLayout(
+    chatModel.terminalItems,
+    composeState,
+    sendCommand = {
+      withApi {
+        // show "in progress"
+        chatModel.controller.sendCmd(CC.Console(composeState.value.message))
+        composeState.value = ComposeState(useLinkPreviews = false)
+        // hide "in progress"
+      }
+    },
+    close
+  )
+}
+
+@Composable
+fun TerminalLayout(
+  terminalItems: List<TerminalItem>,
+  composeState: MutableState<ComposeState>,
+  sendCommand: () -> Unit,
+  close: () -> Unit
+) {
+  val smallFont = MaterialTheme.typography.body1.copy(color = MaterialTheme.colors.onBackground)
+  val textStyle = remember { mutableStateOf(smallFont) }
+
+  fun onMessageChange(s: String) {
+    composeState.value = composeState.value.copy(message = s)
+  }
+
+  ProvideWindowInsets(windowInsetsAnimationsEnabled = true) {
+    Scaffold(
+      topBar = { CloseSheetBar(close) },
+      bottomBar = {
+        Box(Modifier.padding(horizontal = 8.dp)) {
+          SendMsgView(composeState, sendCommand, ::onMessageChange, textStyle)
+        }
+      },
+      modifier = Modifier.navigationBarsWithImePadding()
+    ) { contentPadding ->
+      Surface(
+        modifier = Modifier
+          .padding(contentPadding)
+          .fillMaxWidth()
+          .background(MaterialTheme.colors.background)
+      ) {
+        TerminalLog(terminalItems)
+      }
+    }
+  }
+}
+
+@Composable
+fun TerminalLog(terminalItems: List<TerminalItem>) {
+  val listState = rememberLazyListState()
+  val keyboardState by getKeyboardState()
+  val ciListState = rememberSaveable(stateSaver = CIListStateSaver) {
+    mutableStateOf(CIListState(false, terminalItems.count(), keyboardState))
+  }
+  val scope = rememberCoroutineScope()
+  LazyColumn(state = listState) {
+    items(terminalItems) { item ->
+      Text("${item.date.toString().subSequence(11, 19)} ${item.label}",
+        style = TextStyle(fontFamily = FontFamily.Monospace, fontSize = 18.sp, color = MaterialTheme.colors.primary),
+        maxLines = 1,
+        overflow = TextOverflow.Ellipsis,
+        modifier = Modifier
+          .padding(horizontal = 8.dp, vertical = 4.dp)
+          .clickable {
+            ModalManager.shared.showModal {
+              SelectionContainer(modifier = Modifier.verticalScroll(rememberScrollState())) {
+                Text(item.details)
+              }
+            }
+          }
+      )
+    }
+    val len = terminalItems.count()
+    if (len > 1 && (keyboardState != ciListState.value.keyboardState || !ciListState.value.scrolled || len != ciListState.value.itemCount)) {
+      scope.launch {
+        ciListState.value = CIListState(true, len, keyboardState)
+        listState.animateScrollToItem(len - 1)
+      }
+    }
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewTerminalLayout() {
+  SimpleXTheme {
+    TerminalLayout(
+      terminalItems = TerminalItem.sampleData,
+      composeState = remember { mutableStateOf(ComposeState(useLinkPreviews = false)) },
+      sendCommand = {},
+      close = {}
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/WelcomeView.kt

@@ -0,0 +1,144 @@
+package chat.simplex.app.views
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.BasicTextField
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.ArrowBackIosNew
+import androidx.compose.material.icons.outlined.ArrowForwardIos
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.SolidColor
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+import chat.simplex.app.SimplexService
+import chat.simplex.app.model.ChatModel
+import chat.simplex.app.model.Profile
+import chat.simplex.app.ui.theme.HighOrLowlight
+import chat.simplex.app.ui.theme.SimpleButton
+import chat.simplex.app.views.helpers.withApi
+import chat.simplex.app.views.onboarding.OnboardingStage
+import chat.simplex.app.views.onboarding.ReadableText
+import com.google.accompanist.insets.navigationBarsWithImePadding
+
+fun isValidDisplayName(name: String) : Boolean {
+  return (name.firstOrNull { it.isWhitespace() }) == null
+}
+
+@Composable
+fun CreateProfilePanel(chatModel: ChatModel) {
+  val displayName = remember { mutableStateOf("") }
+  val fullName = remember { mutableStateOf("") }
+  val focusRequester = remember { FocusRequester() }
+
+  Surface(Modifier.background(MaterialTheme.colors.onBackground)) {
+    Column(
+      modifier = Modifier.fillMaxSize()
+    ) {
+      Text(
+        stringResource(R.string.create_profile),
+        style = MaterialTheme.typography.h4,
+        modifier = Modifier.padding(vertical = 5.dp)
+      )
+      ReadableText(R.string.your_profile_is_stored_on_your_device)
+      ReadableText(R.string.profile_is_only_shared_with_your_contacts)
+      Spacer(Modifier.height(10.dp))
+      Text(
+        stringResource(R.string.display_name),
+        style = MaterialTheme.typography.h6,
+        modifier = Modifier.padding(bottom = 3.dp)
+      )
+      ProfileNameField(displayName, focusRequester)
+      val errorText = if (!isValidDisplayName(displayName.value)) stringResource(R.string.display_name_cannot_contain_whitespace) else ""
+      Text(
+        errorText,
+        fontSize = 15.sp,
+        color = MaterialTheme.colors.error
+      )
+      Spacer(Modifier.height(3.dp))
+      Text(
+        stringResource(R.string.full_name_optional__prompt),
+        style = MaterialTheme.typography.h6,
+        modifier = Modifier.padding(bottom = 5.dp)
+      )
+      ProfileNameField(fullName)
+      Spacer(Modifier.fillMaxHeight().weight(1f))
+      Row {
+        SimpleButton(
+          text = stringResource(R.string.about_simplex),
+          icon = Icons.Outlined.ArrowBackIosNew
+        ) { chatModel.onboardingStage.value = OnboardingStage.Step1_SimpleXInfo }
+
+        Spacer(Modifier.fillMaxWidth().weight(1f))
+
+        val enabled = displayName.value.isNotEmpty() && isValidDisplayName(displayName.value)
+        val createModifier: Modifier
+        val createColor: Color
+        if (enabled) {
+          createModifier = Modifier.clickable { createProfile(chatModel, displayName.value, fullName.value) }.padding(8.dp)
+          createColor = MaterialTheme.colors.primary
+        } else {
+          createModifier = Modifier.padding(8.dp)
+          createColor = HighOrLowlight
+        }
+        Surface(shape = RoundedCornerShape(20.dp)) {
+          Row(verticalAlignment = Alignment.CenterVertically, modifier = createModifier) {
+            Text(stringResource(R.string.create_profile_button), style = MaterialTheme.typography.caption, color = createColor)
+            Icon(Icons.Outlined.ArrowForwardIos, stringResource(R.string.create_profile_button), tint = createColor)
+          }
+        }
+      }
+
+      LaunchedEffect(Unit) {
+        focusRequester.requestFocus()
+      }
+    }
+  }
+}
+
+fun createProfile(chatModel: ChatModel, displayName: String, fullName: String) {
+  withApi {
+    val user = chatModel.controller.apiCreateActiveUser(
+      Profile(displayName, fullName, null)
+    )
+    chatModel.controller.startChat(user)
+    chatModel.controller.showBackgroundServiceNoticeIfNeeded()
+    SimplexService.start(chatModel.controller.appContext)
+    chatModel.onboardingStage.value = OnboardingStage.OnboardingComplete
+  }
+}
+
+@Composable
+fun ProfileNameField(name: MutableState<String>, focusRequester: FocusRequester? = null) {
+  val modifier = Modifier
+    .fillMaxWidth()
+    .background(MaterialTheme.colors.secondary)
+    .height(40.dp)
+    .clip(RoundedCornerShape(5.dp))
+    .padding(8.dp)
+    .navigationBarsWithImePadding()
+  BasicTextField(
+    value = name.value,
+    onValueChange = { name.value = it },
+    modifier = if (focusRequester == null) modifier else modifier.focusRequester(focusRequester),
+    textStyle = MaterialTheme.typography.body1.copy(color = MaterialTheme.colors.onBackground),
+    keyboardOptions = KeyboardOptions(
+      capitalization = KeyboardCapitalization.None,
+      autoCorrect = false
+    ),
+    singleLine = true,
+    cursorBrush = SolidColor(HighOrLowlight)
+  )
+}

apps/android/app/src/main/java/chat/simplex/app/views/call/CallManager.kt

@@ -0,0 +1,100 @@
+package chat.simplex.app.views.call
+
+import android.util.Log
+import chat.simplex.app.TAG
+import chat.simplex.app.model.ChatModel
+import chat.simplex.app.views.helpers.ModalManager
+import chat.simplex.app.views.helpers.withApi
+import kotlinx.datetime.Clock
+import kotlin.time.Duration.Companion.minutes
+
+class CallManager(val chatModel: ChatModel) {
+  fun reportNewIncomingCall(invitation: RcvCallInvitation) {
+    Log.d(TAG, "CallManager.reportNewIncomingCall")
+    with (chatModel) {
+      callInvitations[invitation.contact.id] = invitation
+      if (Clock.System.now() - invitation.callTs <= 3.minutes) {
+        activeCallInvitation.value = invitation
+        controller.ntfManager.notifyCallInvitation(invitation)
+      } else {
+        val contact = invitation.contact
+        controller.ntfManager.notifyMessageReceived(chatId = contact.id, displayName = contact.displayName, msgText = invitation.callTypeText)
+      }
+    }
+  }
+
+  fun acceptIncomingCall(invitation: RcvCallInvitation) {
+    ModalManager.shared.closeModals()
+    val call = chatModel.activeCall.value
+    if (call == null) {
+      justAcceptIncomingCall(invitation = invitation)
+    } else {
+      withApi {
+        chatModel.switchingCall.value = true
+        try {
+          endCall(call = call)
+          justAcceptIncomingCall(invitation = invitation)
+        } finally {
+          withApi { chatModel.switchingCall.value = false }
+        }
+      }
+    }
+  }
+
+  private fun justAcceptIncomingCall(invitation: RcvCallInvitation) {
+    with (chatModel) {
+      activeCall.value = Call(
+        contact = invitation.contact,
+        callState = CallState.InvitationAccepted,
+        localMedia = invitation.callType.media,
+        sharedKey = invitation.sharedKey
+      )
+      showCallView.value = true
+      val useRelay = controller.appPrefs.webrtcPolicyRelay.get()
+      callCommand.value = WCallCommand.Start (media = invitation.callType.media, aesKey = invitation.sharedKey, relay = useRelay)
+      callInvitations.remove(invitation.contact.id)
+      if (invitation.contact.id == activeCallInvitation.value?.contact?.id) {
+        activeCallInvitation.value = null
+        controller.ntfManager.cancelCallNotification()
+      }
+    }
+  }
+
+  suspend fun endCall(call: Call) {
+    with (chatModel) {
+      if (call.callState == CallState.Ended) {
+        Log.d(TAG, "CallManager.endCall: call ended")
+        activeCall.value = null
+        showCallView.value = false
+      } else {
+        Log.d(TAG, "CallManager.endCall: ending call...")
+        callCommand.value = WCallCommand.End
+        showCallView.value = false
+        controller.apiEndCall(call.contact)
+        activeCall.value = null
+      }
+    }
+  }
+
+  fun endCall(invitation: RcvCallInvitation) {
+    with (chatModel) {
+      callInvitations.remove(invitation.contact.id)
+      if (invitation.contact.id == activeCallInvitation.value?.contact?.id) {
+        activeCallInvitation.value = null
+        controller.ntfManager.cancelCallNotification()
+      }
+      withApi {
+        if (!controller.apiRejectCall(invitation.contact)) {
+          Log.e(TAG, "apiRejectCall error")
+        }
+      }
+    }
+  }
+
+  fun reportCallRemoteEnded(invitation: RcvCallInvitation) {
+    if (chatModel.activeCallInvitation.value?.contact?.id == invitation.contact.id) {
+      chatModel.activeCallInvitation.value = null
+      chatModel.controller.ntfManager.cancelCallNotification()
+    }
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/call/CallView.kt

@@ -0,0 +1,466 @@
+package chat.simplex.app.views.call
+
+import android.Manifest
+import android.content.Context
+import android.media.AudioManager
+import android.util.Log
+import android.view.ViewGroup
+import android.webkit.*
+import androidx.activity.compose.BackHandler
+import androidx.annotation.StringRes
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.*
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalLifecycleOwner
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.viewinterop.AndroidView
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleEventObserver
+import androidx.webkit.WebViewAssetLoader
+import androidx.webkit.WebViewClientCompat
+import chat.simplex.app.R
+import chat.simplex.app.TAG
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.SimpleXTheme
+import chat.simplex.app.views.helpers.ProfileImage
+import chat.simplex.app.views.helpers.withApi
+import com.google.accompanist.permissions.rememberMultiplePermissionsState
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
+
+@Composable
+fun ActiveCallView(chatModel: ChatModel) {
+  BackHandler(onBack = {
+    val call = chatModel.activeCall.value
+    if (call != null) withApi { chatModel.callManager.endCall(call) }
+  })
+  val cxt = LocalContext.current
+  val scope = rememberCoroutineScope()
+  Box(Modifier.fillMaxSize()) {
+    WebRTCView(chatModel.callCommand) { apiMsg ->
+      Log.d(TAG, "received from WebRTCView: $apiMsg")
+      val call = chatModel.activeCall.value
+      if (call != null) {
+        Log.d(TAG, "has active call $call")
+        when (val r = apiMsg.resp) {
+          is WCallResponse.Capabilities -> withApi {
+            val callType = CallType(call.localMedia, r.capabilities)
+            chatModel.controller.apiSendCallInvitation(call.contact, callType)
+            chatModel.activeCall.value = call.copy(callState = CallState.InvitationSent, localCapabilities = r.capabilities)
+          }
+          is WCallResponse.Offer -> withApi {
+            chatModel.controller.apiSendCallOffer(call.contact, r.offer, r.iceCandidates, call.localMedia, r.capabilities)
+            chatModel.activeCall.value = call.copy(callState = CallState.OfferSent, localCapabilities = r.capabilities)
+          }
+          is WCallResponse.Answer -> withApi {
+            chatModel.controller.apiSendCallAnswer(call.contact, r.answer, r.iceCandidates)
+            chatModel.activeCall.value = call.copy(callState = CallState.Negotiated)
+          }
+          is WCallResponse.Ice -> withApi {
+            chatModel.controller.apiSendCallExtraInfo(call.contact, r.iceCandidates)
+          }
+          is WCallResponse.Connection ->
+            try {
+              val callStatus = json.decodeFromString<WebRTCCallStatus>("\"${r.state.connectionState}\"")
+              if (callStatus == WebRTCCallStatus.Connected) {
+                chatModel.activeCall.value = call.copy(callState = CallState.Connected)
+              }
+              withApi { chatModel.controller.apiCallStatus(call.contact, callStatus) }
+            } catch (e: Error) {
+              Log.d(TAG,"call status ${r.state.connectionState} not used")
+            }
+          is WCallResponse.Connected -> {
+            chatModel.activeCall.value = call.copy(callState = CallState.Connected, connectionInfo = r.connectionInfo)
+            scope.launch {
+              delay(2000L)
+              setCallSound(cxt, call)
+            }
+          }
+          is WCallResponse.Ended -> {
+            chatModel.activeCall.value = call.copy(callState = CallState.Ended)
+            withApi { chatModel.callManager.endCall(call) }
+            chatModel.showCallView.value = false
+          }
+          is WCallResponse.Ok -> when (val cmd = apiMsg.command) {
+            is WCallCommand.Answer ->
+              chatModel.activeCall.value = call.copy(callState = CallState.Negotiated)
+            is WCallCommand.Media -> {
+              when (cmd.media) {
+                CallMediaType.Video -> chatModel.activeCall.value = call.copy(videoEnabled = cmd.enable)
+                CallMediaType.Audio -> chatModel.activeCall.value = call.copy(audioEnabled = cmd.enable)
+              }
+            }
+            is WCallCommand.Camera -> {
+              chatModel.activeCall.value = call.copy(localCamera = cmd.camera)
+              if (!call.audioEnabled) {
+                chatModel.callCommand.value = WCallCommand.Media(CallMediaType.Audio, enable = false)
+              }
+            }
+            is WCallCommand.End ->
+              chatModel.showCallView.value = false
+            else -> {}
+          }
+          is WCallResponse.Error -> {
+            Log.e(TAG, "ActiveCallView: command error ${r.message}")
+          }
+        }
+      }
+    }
+    val call = chatModel.activeCall.value
+    if (call != null)  ActiveCallOverlay(call, chatModel)
+  }
+}
+
+@Composable
+private fun ActiveCallOverlay(call: Call, chatModel: ChatModel) {
+  var cxt = LocalContext.current
+  ActiveCallOverlayLayout(
+    call = call,
+    dismiss = { withApi { chatModel.callManager.endCall(call) } },
+    toggleAudio = { chatModel.callCommand.value = WCallCommand.Media(CallMediaType.Audio, enable = !call.audioEnabled) },
+    toggleVideo = { chatModel.callCommand.value = WCallCommand.Media(CallMediaType.Video, enable = !call.videoEnabled) },
+    toggleSound = {
+      var call = chatModel.activeCall.value
+      if (call != null) {
+        call = call.copy(soundSpeaker = !call.soundSpeaker)
+        chatModel.activeCall.value = call
+        setCallSound(cxt, call)
+      }
+    },
+    flipCamera = { chatModel.callCommand.value = WCallCommand.Camera(call.localCamera.flipped) }
+  )
+}
+
+private fun setCallSound(cxt: Context, call: Call) {
+  Log.d(TAG, "setCallSound: set audio mode")
+  val am = cxt.getSystemService(Context.AUDIO_SERVICE) as AudioManager
+  if (call.soundSpeaker) {
+    am.mode = AudioManager.MODE_NORMAL
+    am.isSpeakerphoneOn = true
+  } else {
+    am.mode = AudioManager.MODE_IN_CALL
+    am.isSpeakerphoneOn = false
+  }
+}
+
+@Composable
+private fun ActiveCallOverlayLayout(
+  call: Call,
+  dismiss: () -> Unit,
+  toggleAudio: () -> Unit,
+  toggleVideo: () -> Unit,
+  toggleSound: () -> Unit,
+  flipCamera: () -> Unit
+) {
+  Column(Modifier.padding(16.dp)) {
+    when (call.peerMedia ?: call.localMedia) {
+      CallMediaType.Video -> {
+        CallInfoView(call, alignment = Alignment.Start)
+        Spacer(Modifier.fillMaxHeight().weight(1f))
+        Row(Modifier.fillMaxWidth().padding(horizontal = 6.dp), horizontalArrangement = Arrangement.SpaceBetween, verticalAlignment = Alignment.CenterVertically) {
+          ToggleAudioButton(call, toggleAudio)
+          Spacer(Modifier.size(40.dp))
+          IconButton(onClick = dismiss) {
+            Icon(Icons.Filled.CallEnd, stringResource(R.string.icon_descr_hang_up), tint = Color.Red, modifier = Modifier.size(64.dp))
+          }
+          if (call.videoEnabled) {
+            ControlButton(call, Icons.Filled.FlipCameraAndroid, R.string.icon_descr_flip_camera, flipCamera)
+            ControlButton(call, Icons.Filled.Videocam, R.string.icon_descr_video_off, toggleVideo)
+          } else {
+            Spacer(Modifier.size(48.dp))
+            ControlButton(call, Icons.Outlined.VideocamOff, R.string.icon_descr_video_on, toggleVideo)
+          }
+        }
+      }
+      CallMediaType.Audio -> {
+        Spacer(Modifier.fillMaxHeight().weight(1f))
+        Column(
+          Modifier.fillMaxWidth(),
+          horizontalAlignment = Alignment.CenterHorizontally,
+          verticalArrangement = Arrangement.Center
+        ) {
+          ProfileImage(size = 192.dp, image = call.contact.profile.image)
+          CallInfoView(call, alignment = Alignment.CenterHorizontally)
+        }
+        Spacer(Modifier.fillMaxHeight().weight(1f))
+        Box(Modifier.fillMaxWidth().padding(bottom = 48.dp), contentAlignment = Alignment.CenterStart) {
+          Box(Modifier.fillMaxWidth(), contentAlignment = Alignment.Center) {
+            IconButton(onClick = dismiss) {
+              Icon(Icons.Filled.CallEnd, stringResource(R.string.icon_descr_hang_up), tint = Color.Red, modifier = Modifier.size(64.dp))
+            }
+          }
+          Box(Modifier.padding(start = 32.dp)) {
+            ToggleAudioButton(call, toggleAudio)
+          }
+          Box(Modifier.fillMaxWidth(), contentAlignment = Alignment.CenterEnd) {
+            Box(Modifier.padding(end = 32.dp)) {
+              ToggleSoundButton(call, toggleSound)
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+@Composable
+private fun ControlButton(call: Call, icon: ImageVector, @StringRes iconText: Int, action: () -> Unit) {
+  if (call.hasMedia) {
+    IconButton(onClick = action) {
+      Icon(icon, stringResource(iconText), tint = Color(0xFFFFFFD8), modifier = Modifier.size(40.dp))
+    }
+  } else {
+    Spacer(Modifier.size(40.dp))
+  }
+}
+
+@Composable
+private fun ToggleAudioButton(call: Call, toggleAudio: () -> Unit) {
+  if (call.audioEnabled) {
+    ControlButton(call, Icons.Outlined.Mic, R.string.icon_descr_audio_off, toggleAudio)
+  } else {
+    ControlButton(call, Icons.Outlined.MicOff, R.string.icon_descr_audio_on, toggleAudio)
+  }
+}
+
+@Composable
+private fun ToggleSoundButton(call: Call, toggleSound: () -> Unit) {
+  if (call.soundSpeaker) {
+    ControlButton(call, Icons.Outlined.VolumeUp, R.string.icon_descr_speaker_off, toggleSound)
+  } else {
+    ControlButton(call, Icons.Outlined.VolumeDown, R.string.icon_descr_speaker_on, toggleSound)
+  }
+}
+
+@Composable
+fun CallInfoView(call: Call, alignment: Alignment.Horizontal) {
+  @Composable fun InfoText(text: String, style: TextStyle = MaterialTheme.typography.body2) =
+    Text(text, color = Color(0xFFFFFFD8), style = style)
+  Column(horizontalAlignment = alignment) {
+    InfoText(call.contact.chatViewName, style = MaterialTheme.typography.h2)
+    InfoText(call.callState.text)
+
+    val connInfo =
+      if (call.connectionInfo == null) ""
+      else " (${call.connectionInfo.text})"
+    InfoText(call.encryptionStatus + connInfo)
+  }
+}
+
+//@Composable
+//fun CallViewDebug(close: () -> Unit) {
+//  val callCommand = remember { mutableStateOf<WCallCommand?>(null)}
+//  val commandText = remember { mutableStateOf("{\"command\": {\"type\": \"start\", \"media\": \"video\", \"aesKey\": \"FwW+t6UbnwHoapYOfN4mUBUuqR7UtvYWxW16iBqM29U=\"}}") }
+//  val clipboard = ContextCompat.getSystemService(LocalContext.current, ClipboardManager::class.java)
+//
+//  BackHandler(onBack = close)
+//  Column(
+//    horizontalAlignment = Alignment.CenterHorizontally,
+//    verticalArrangement = Arrangement.spacedBy(12.dp),
+//    modifier = Modifier
+//      .background(MaterialTheme.colors.background)
+//      .fillMaxSize()
+//  ) {
+//    WebRTCView(callCommand) { apiMsg ->
+//      // for debugging
+//      // commandText.value = apiMsg
+//      commandText.value = json.encodeToString(apiMsg)
+//    }
+//
+//    TextEditor(Modifier.height(180.dp), text = commandText)
+//
+//    Row(
+//      Modifier
+//        .fillMaxWidth()
+//        .padding(bottom = 6.dp),
+//      horizontalArrangement = Arrangement.SpaceBetween
+//    ) {
+//      Button(onClick = {
+//        val clip: ClipData = ClipData.newPlainText("js command", commandText.value)
+//        clipboard?.setPrimaryClip(clip)
+//      }) { Text("Copy") }
+//      Button(onClick = {
+//        try {
+//          val apiCall: WVAPICall = json.decodeFromString(commandText.value)
+//          commandText.value = ""
+//          println("sending: ${commandText.value}")
+//          callCommand.value = apiCall.command
+//        } catch(e: Error) {
+//          println("error parsing command: ${commandText.value}")
+//          println(e)
+//        }
+//      }) { Text("Send") }
+//      Button(onClick = {
+//        commandText.value = ""
+//      }) { Text("Clear") }
+//    }
+//  }
+//}
+
+@Composable
+fun WebRTCView(callCommand: MutableState<WCallCommand?>, onResponse: (WVAPIMessage) -> Unit) {
+  val webView = remember { mutableStateOf<WebView?>(null) }
+  val permissionsState = rememberMultiplePermissionsState(
+    permissions = listOf(
+      Manifest.permission.CAMERA,
+      Manifest.permission.RECORD_AUDIO,
+      Manifest.permission.MODIFY_AUDIO_SETTINGS,
+      Manifest.permission.INTERNET
+    )
+  )
+  fun processCommand(wv: WebView, cmd: WCallCommand) {
+    val apiCall = WVAPICall(command = cmd)
+    wv.evaluateJavascript("processCommand(${json.encodeToString(apiCall)})", null)
+  }
+  val lifecycleOwner = LocalLifecycleOwner.current
+  DisposableEffect(lifecycleOwner) {
+    val observer = LifecycleEventObserver { _, event ->
+      if (event == Lifecycle.Event.ON_RESUME || event == Lifecycle.Event.ON_START) {
+        permissionsState.launchMultiplePermissionRequest()
+      }
+    }
+    lifecycleOwner.lifecycle.addObserver(observer)
+    onDispose {
+      val wv = webView.value
+      if (wv != null) processCommand(wv, WCallCommand.End)
+      lifecycleOwner.lifecycle.removeObserver(observer)
+    }
+  }
+  LaunchedEffect(callCommand.value, webView.value) {
+    val cmd = callCommand.value
+    val wv = webView.value
+    if (cmd != null && wv != null) {
+      Log.d(TAG, "WebRTCView LaunchedEffect executing $cmd")
+      processCommand(wv, cmd)
+      callCommand.value = null
+    }
+  }
+  val assetLoader = WebViewAssetLoader.Builder()
+    .addPathHandler("/assets/www/", WebViewAssetLoader.AssetsPathHandler(LocalContext.current))
+    .build()
+
+  if (permissionsState.allPermissionsGranted) {
+    Box(Modifier.fillMaxSize()) {
+      AndroidView(
+        factory = { AndroidViewContext ->
+          WebView(AndroidViewContext).apply {
+            layoutParams = ViewGroup.LayoutParams(
+              ViewGroup.LayoutParams.MATCH_PARENT,
+              ViewGroup.LayoutParams.MATCH_PARENT,
+            )
+            this.webChromeClient = object: WebChromeClient() {
+              override fun onPermissionRequest(request: PermissionRequest) {
+                if (request.origin.toString().startsWith("file:/")) {
+                  request.grant(request.resources)
+                } else {
+                  Log.d(TAG, "Permission request from webview denied.")
+                  request.deny()
+                }
+              }
+            }
+            this.webViewClient = LocalContentWebViewClient(assetLoader)
+            this.clearHistory()
+            this.clearCache(true)
+            this.addJavascriptInterface(WebRTCInterface(onResponse), "WebRTCInterface")
+            val webViewSettings = this.settings
+            webViewSettings.allowFileAccess = true
+            webViewSettings.allowContentAccess = true
+            webViewSettings.javaScriptEnabled = true
+            webViewSettings.mediaPlaybackRequiresUserGesture = false
+            webViewSettings.cacheMode = WebSettings.LOAD_NO_CACHE
+            this.loadUrl("file:android_asset/www/call.html")
+          }
+        }
+      ) { wv ->
+        Log.d(TAG, "WebRTCView: webview ready")
+        // for debugging
+        // wv.evaluateJavascript("sendMessageToNative = ({resp}) => WebRTCInterface.postMessage(JSON.stringify({command: resp}))", null)
+        withApi {
+          delay(2000L)
+          wv.evaluateJavascript("sendMessageToNative = (msg) => WebRTCInterface.postMessage(JSON.stringify(msg))", null)
+          webView.value = wv
+        }
+      }
+    }
+  }
+}
+
+// for debugging
+// class WebRTCInterface(private val onResponse: (String) -> Unit) {
+class WebRTCInterface(private val onResponse: (WVAPIMessage) -> Unit) {
+  @JavascriptInterface
+  fun postMessage(message: String) {
+    Log.d(TAG, "WebRTCInterface.postMessage")
+    try {
+      // for debugging
+      // onResponse(message)
+      onResponse(json.decodeFromString(message))
+    } catch (e: Error) {
+      Log.e(TAG, "failed parsing WebView message: $message")
+    }
+  }
+}
+
+private class LocalContentWebViewClient(private val assetLoader: WebViewAssetLoader) : WebViewClientCompat() {
+  override fun shouldInterceptRequest(
+    view: WebView,
+    request: WebResourceRequest
+  ): WebResourceResponse? {
+    return assetLoader.shouldInterceptRequest(request.url)
+  }
+}
+
+@Preview
+@Composable
+fun PreviewActiveCallOverlayVideo() {
+  SimpleXTheme {
+    ActiveCallOverlayLayout(
+      call = Call(
+        contact = Contact.sampleData,
+        callState = CallState.Negotiated,
+        localMedia = CallMediaType.Video,
+        peerMedia = CallMediaType.Video,
+        connectionInfo = ConnectionInfo(RTCIceCandidate(RTCIceCandidateType.Host), RTCIceCandidate(RTCIceCandidateType.Host))
+      ),
+      dismiss = {},
+      toggleAudio = {},
+      toggleVideo = {},
+      toggleSound = {},
+      flipCamera = {}
+    )
+  }
+}
+
+@Preview
+@Composable
+fun PreviewActiveCallOverlayAudio() {
+  SimpleXTheme {
+    ActiveCallOverlayLayout(
+      call = Call(
+        contact = Contact.sampleData,
+        callState = CallState.Negotiated,
+        localMedia = CallMediaType.Audio,
+        peerMedia = CallMediaType.Audio,
+        connectionInfo = ConnectionInfo(RTCIceCandidate(RTCIceCandidateType.Host), RTCIceCandidate(RTCIceCandidateType.Host))
+      ),
+      dismiss = {},
+      toggleAudio = {},
+      toggleVideo = {},
+      toggleSound = {},
+      flipCamera = {}
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/call/IncomingCallActivity.kt

@@ -0,0 +1,227 @@
+package chat.simplex.app.views.call
+
+import android.app.KeyguardManager
+import android.content.Context
+import android.content.Intent
+import android.content.res.Configuration
+import android.os.Build
+import android.os.Bundle
+import android.util.Log
+import android.view.WindowManager
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.viewModels
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.scale
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.*
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.model.NtfManager.Companion.OpenChatAction
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.helpers.ProfileImage
+import chat.simplex.app.views.onboarding.SimpleXLogo
+import kotlinx.datetime.Clock
+
+class IncomingCallActivity: ComponentActivity() {
+  private val vm by viewModels<SimplexViewModel>()
+
+  override fun onCreate(savedInstanceState: Bundle?) {
+    super.onCreate(savedInstanceState)
+    val activity = this
+    setContent { IncomingCallActivityView(vm.chatModel, activity) }
+    unlockForIncomingCall()
+  }
+
+  override fun onDestroy() {
+    super.onDestroy()
+    lockAfterIncomingCall()
+  }
+
+  private fun unlockForIncomingCall() {
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
+      setShowWhenLocked(true)
+      setTurnScreenOn(true)
+    } else {
+      window.addFlags(activityFlags)
+    }
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+      getKeyguardManager(this).requestDismissKeyguard(this, null)
+    }
+  }
+
+  private fun lockAfterIncomingCall() {
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
+      setShowWhenLocked(false)
+      setTurnScreenOn(false)
+    } else {
+      window.clearFlags(activityFlags)
+    }
+  }
+
+  companion object {
+    const val activityFlags = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON or WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
+  }
+}
+
+fun getKeyguardManager(context: Context): KeyguardManager =
+  context.getSystemService(Context.KEYGUARD_SERVICE) as KeyguardManager
+
+@Composable
+fun IncomingCallActivityView(m: ChatModel, activity: IncomingCallActivity) {
+  val switchingCall = m.switchingCall.value
+  val invitation = m.activeCallInvitation.value
+  val call = m.activeCall.value
+  val showCallView = m.showCallView.value
+  LaunchedEffect(invitation, call, switchingCall, showCallView) {
+    if (!switchingCall && invitation == null && (!showCallView || call == null)) {
+      Log.d(TAG, "IncomingCallActivityView: finishing activity")
+      activity.finish()
+    }
+  }
+  SimpleXTheme {
+    Surface(
+      Modifier
+        .background(MaterialTheme.colors.background)
+        .fillMaxSize()) {
+      if (showCallView) {
+        Box {
+          ActiveCallView(m)
+          if (invitation != null) IncomingCallAlertView(invitation, m)
+        }
+      } else if (invitation != null) {
+        IncomingCallLockScreenAlert(invitation, m, activity)
+      }
+    }
+  }
+}
+
+@Composable
+fun IncomingCallLockScreenAlert(invitation: RcvCallInvitation, chatModel: ChatModel, activity: IncomingCallActivity) {
+  val cm = chatModel.callManager
+  val cxt = LocalContext.current
+  val scope = rememberCoroutineScope()
+  var callOnLockScreen by remember { mutableStateOf(chatModel.controller.appPrefs.callOnLockScreen.get()) }
+  LaunchedEffect(true) { SoundPlayer.shared.start(cxt, scope, sound = true) }
+  DisposableEffect(true) { onDispose { SoundPlayer.shared.stop() } }
+  IncomingCallLockScreenAlertLayout(
+    invitation,
+    callOnLockScreen,
+    rejectCall = { cm.endCall(invitation = invitation) },
+    ignoreCall = { chatModel.activeCallInvitation.value = null },
+    acceptCall = { cm.acceptIncomingCall(invitation = invitation) },
+    openApp = {
+      SoundPlayer.shared.stop()
+      var intent = Intent(activity, MainActivity::class.java)
+        .setAction(OpenChatAction)
+        .putExtra("chatId", invitation.contact.id)
+      activity.startActivity(intent)
+      activity.finish()
+      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+        getKeyguardManager(activity).requestDismissKeyguard(activity, null)
+      }
+    }
+  )
+}
+
+@Composable
+fun IncomingCallLockScreenAlertLayout(
+  invitation: RcvCallInvitation,
+  callOnLockScreen: CallOnLockScreen?,
+  rejectCall: () -> Unit,
+  ignoreCall: () -> Unit,
+  acceptCall: () -> Unit,
+  openApp: () -> Unit
+) {
+  Column(
+    Modifier
+      .padding(30.dp)
+      .fillMaxSize(),
+    horizontalAlignment = Alignment.CenterHorizontally
+  ) {
+    IncomingCallInfo(invitation)
+    Spacer(Modifier.fillMaxHeight().weight(1f))
+    if (callOnLockScreen == CallOnLockScreen.ACCEPT) {
+      ProfileImage(size = 192.dp, image = invitation.contact.profile.image)
+      Text(invitation.contact.chatViewName, style = MaterialTheme.typography.h2)
+      Spacer(Modifier.fillMaxHeight().weight(1f))
+      Row {
+        LockScreenCallButton(stringResource(R.string.reject), Icons.Filled.CallEnd, Color.Red, rejectCall)
+        Spacer(Modifier.size(48.dp))
+        LockScreenCallButton(stringResource(R.string.ignore), Icons.Filled.Close, MaterialTheme.colors.primary, ignoreCall)
+        Spacer(Modifier.size(48.dp))
+        LockScreenCallButton(stringResource(R.string.accept), Icons.Filled.Check, SimplexGreen, acceptCall)
+      }
+    } else if (callOnLockScreen == CallOnLockScreen.SHOW) {
+      SimpleXLogo()
+      Text(stringResource(R.string.open_simplex_chat_to_accept_call), textAlign = TextAlign.Center, lineHeight = 22.sp)
+      Text(stringResource(R.string.allow_accepting_calls_from_lock_screen), textAlign = TextAlign.Center, style = MaterialTheme.typography.body2, lineHeight = 22.sp)
+      Spacer(Modifier.fillMaxHeight().weight(1f))
+      SimpleButton(text = stringResource(R.string.open_verb), icon = Icons.Filled.Check, click = openApp)
+    }
+  }
+}
+
+@Composable
+private fun LockScreenCallButton(text: String, icon: ImageVector, color: Color, action: () -> Unit) {
+  Surface(
+    shape = RoundedCornerShape(10.dp),
+    color = Color.Transparent
+  ) {
+    Column(
+      Modifier
+        .defaultMinSize(minWidth = 50.dp)
+        .padding(4.dp),
+      horizontalAlignment = Alignment.CenterHorizontally
+    ) {
+      IconButton(action) {
+        Icon(icon, text, tint = color, modifier = Modifier.scale(1.75f))
+      }
+      Spacer(Modifier.height(16.dp))
+      Text(text, style = MaterialTheme.typography.body2, color = HighOrLowlight)
+    }
+  }
+}
+
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true
+)
+@Composable
+fun PreviewIncomingCallLockScreenAlert() {
+  SimpleXTheme(true) {
+    Surface(
+      Modifier
+        .background(MaterialTheme.colors.background)
+        .fillMaxSize()) {
+      IncomingCallLockScreenAlertLayout(
+        invitation = RcvCallInvitation(
+          contact = Contact.sampleData,
+          callType = CallType(media = CallMediaType.Audio, capabilities = CallCapabilities(encryption = false)),
+          sharedKey = null,
+          callTs = Clock.System.now()
+        ),
+        callOnLockScreen = null,
+        rejectCall = {},
+        ignoreCall = {},
+        acceptCall = {},
+        openApp = {},
+      )
+    }
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/call/IncomingCallAlertView.kt

@@ -0,0 +1,108 @@
+package chat.simplex.app.views.call
+
+import androidx.compose.foundation.*
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.scale
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.model.ChatModel
+import chat.simplex.app.model.Contact
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.usersettings.ProfilePreview
+import kotlinx.datetime.Clock
+
+@Composable
+fun IncomingCallAlertView(invitation: RcvCallInvitation, chatModel: ChatModel) {
+  val cm = chatModel.callManager
+  val cxt = LocalContext.current
+  val scope = rememberCoroutineScope()
+  LaunchedEffect(true) { SoundPlayer.shared.start(cxt, scope, sound = !chatModel.showCallView.value) }
+  DisposableEffect(true) { onDispose { SoundPlayer.shared.stop() } }
+  IncomingCallAlertLayout(
+    invitation,
+    rejectCall = { cm.endCall(invitation = invitation) },
+    ignoreCall = { chatModel.activeCallInvitation.value = null },
+    acceptCall = { cm.acceptIncomingCall(invitation = invitation) }
+  )
+}
+
+@Composable
+fun IncomingCallAlertLayout(
+  invitation: RcvCallInvitation,
+  rejectCall: () -> Unit,
+  ignoreCall: () -> Unit,
+  acceptCall: () -> Unit
+) {
+  val color = if (isSystemInDarkTheme()) IncomingCallDark else IncomingCallLight
+  Column(Modifier.background(color).padding(top = 16.dp, bottom = 16.dp, start = 16.dp, end = 8.dp)) {
+    IncomingCallInfo(invitation)
+    Spacer(Modifier.height(8.dp))
+    Row(verticalAlignment = Alignment.CenterVertically) {
+      ProfilePreview(profileOf = invitation.contact, size = 64.dp, color = Color.White)
+      Spacer(Modifier.fillMaxWidth().weight(1f))
+      CallButton(stringResource(R.string.reject), Icons.Filled.CallEnd, Color.Red, rejectCall)
+      CallButton(stringResource(R.string.ignore), Icons.Filled.Close, MaterialTheme.colors.primary, ignoreCall)
+      CallButton(stringResource(R.string.accept), Icons.Filled.Check, SimplexGreen, acceptCall)
+    }
+  }
+}
+
+@Composable
+fun IncomingCallInfo(invitation: RcvCallInvitation) {
+  @Composable fun CallIcon(icon: ImageVector, descr: String) = Icon(icon, descr, tint = SimplexGreen)
+  Row {
+    if (invitation.callType.media == CallMediaType.Video) CallIcon(Icons.Filled.Videocam, stringResource(R.string.icon_descr_video_call))
+    else CallIcon(Icons.Filled.Phone, stringResource(R.string.icon_descr_audio_call))
+    Spacer(Modifier.width(4.dp))
+    Text(invitation.callTypeText)
+  }
+}
+
+@Composable
+private fun CallButton(text: String, icon: ImageVector, color: Color, action: () -> Unit) {
+  Surface(
+    shape = RoundedCornerShape(10.dp),
+    color = Color.Transparent
+  ) {
+    Column(
+      Modifier
+        .clickable(onClick = action)
+        .defaultMinSize(minWidth = 50.dp)
+        .padding(4.dp),
+      horizontalAlignment = Alignment.CenterHorizontally
+    ) {
+      Icon(icon, text, tint = color, modifier = Modifier.scale(1.2f))
+      Text(text, style = MaterialTheme.typography.body2, color = HighOrLowlight)
+    }
+  }
+}
+
+@Preview
+@Composable
+fun PreviewIncomingCallAlertLayout() {
+  SimpleXTheme {
+    IncomingCallAlertLayout(
+      invitation = RcvCallInvitation(
+        contact = Contact.sampleData,
+        callType = CallType(media = CallMediaType.Audio, capabilities = CallCapabilities(encryption = false)),
+        sharedKey = null,
+        callTs = Clock.System.now()
+      ),
+      rejectCall = {},
+      ignoreCall = {},
+      acceptCall = {}
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/call/SoundPlayer.kt

@@ -0,0 +1,39 @@
+package chat.simplex.app.views.call
+
+import android.content.Context
+import android.media.MediaPlayer
+import android.os.VibrationEffect
+import android.os.Vibrator
+import androidx.core.content.ContextCompat
+import chat.simplex.app.R
+import chat.simplex.app.views.helpers.withScope
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.delay
+
+class SoundPlayer {
+  var player: MediaPlayer? = null
+  var playing = false
+
+  fun start(cxt: Context, scope: CoroutineScope, sound: Boolean) {
+    if (sound) player = MediaPlayer.create(cxt, R.raw.ring_once)
+    val vibrator = ContextCompat.getSystemService(cxt, Vibrator::class.java)
+    val effect = VibrationEffect.createOneShot(250, VibrationEffect.DEFAULT_AMPLITUDE)
+    playing = true
+    withScope(scope) {
+      while (playing) {
+        if (sound) player?.start()
+        vibrator?.vibrate(effect)
+        delay(3500)
+      }
+    }
+  }
+
+  fun stop() {
+    playing = false
+    player?.stop()
+  }
+
+  companion object {
+    val shared = SoundPlayer()
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/call/WebRTC.kt

@@ -0,0 +1,156 @@
+package chat.simplex.app.views.call
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import chat.simplex.app.R
+import chat.simplex.app.model.Contact
+import chat.simplex.app.views.helpers.generalGetString
+import kotlinx.datetime.Instant
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+data class Call(
+  val contact: Contact,
+  val callState: CallState,
+  val localMedia: CallMediaType,
+  val localCapabilities: CallCapabilities? = null,
+  val peerMedia: CallMediaType? = null,
+  val sharedKey: String? = null,
+  val audioEnabled: Boolean = true,
+  val videoEnabled: Boolean = localMedia == CallMediaType.Video,
+  val soundSpeaker: Boolean = localMedia == CallMediaType.Video,
+  var localCamera: VideoCamera = VideoCamera.User,
+  val connectionInfo: ConnectionInfo? = null
+) {
+  val encrypted: Boolean get() = localEncrypted && sharedKey != null
+  val localEncrypted: Boolean get() = localCapabilities?.encryption ?: false
+
+  val encryptionStatus: String @Composable get() = when(callState) {
+    CallState.WaitCapabilities -> ""
+    CallState.InvitationSent -> stringResource(if (localEncrypted) R.string.status_e2e_encrypted else R.string.status_no_e2e_encryption)
+    CallState.InvitationAccepted -> stringResource(if (sharedKey == null) R.string.status_contact_has_no_e2e_encryption else R.string.status_contact_has_e2e_encryption)
+    else -> stringResource(if (!localEncrypted) R.string.status_no_e2e_encryption else if (sharedKey == null) R.string.status_contact_has_no_e2e_encryption else R.string.status_e2e_encrypted)
+  }
+
+  val hasMedia: Boolean get() = callState == CallState.OfferSent || callState == CallState.Negotiated || callState == CallState.Connected
+}
+
+enum class CallState {
+  WaitCapabilities,
+  InvitationSent,
+  InvitationAccepted,
+  OfferSent,
+  OfferReceived,
+  AnswerReceived,
+  Negotiated,
+  Connected,
+  Ended;
+
+  val text: String @Composable get() = when(this) {
+    WaitCapabilities -> stringResource(R.string.callstate_starting)
+    InvitationSent -> stringResource(R.string.callstate_waiting_for_answer)
+    InvitationAccepted -> stringResource(R.string.callstate_starting)
+    OfferSent -> stringResource(R.string.callstate_waiting_for_confirmation)
+    OfferReceived -> stringResource(R.string.callstate_received_answer)
+    AnswerReceived -> stringResource(R.string.callstate_received_confirmation)
+    Negotiated -> stringResource(R.string.callstate_connecting)
+    Connected -> stringResource(R.string.callstate_connected)
+    Ended -> stringResource(R.string.callstate_ended)
+  }
+}
+
+@Serializable class WVAPICall(val corrId: Int? = null, val command: WCallCommand)
+@Serializable class WVAPIMessage(val corrId: Int? = null, val resp: WCallResponse, val command: WCallCommand? = null)
+
+@Serializable
+sealed class WCallCommand {
+  @Serializable @SerialName("capabilities") object Capabilities: WCallCommand()
+  @Serializable @SerialName("start") class Start(val media: CallMediaType, val aesKey: String? = null, val iceServers: List<RTCIceServer>? = null, val relay: Boolean? = null): WCallCommand()
+  @Serializable @SerialName("offer") class Offer(val offer: String, val iceCandidates: String, val media: CallMediaType, val aesKey: String? = null, val iceServers: List<RTCIceServer>? = null, val relay: Boolean? = null): WCallCommand()
+  @Serializable @SerialName("answer") class Answer (val answer: String, val iceCandidates: String): WCallCommand()
+  @Serializable @SerialName("ice") class Ice(val iceCandidates: String): WCallCommand()
+  @Serializable @SerialName("media") class Media(val media: CallMediaType, val enable: Boolean): WCallCommand()
+  @Serializable @SerialName("camera") class Camera(val camera: VideoCamera): WCallCommand()
+  @Serializable @SerialName("end") object End: WCallCommand()
+}
+
+@Serializable
+sealed class WCallResponse {
+  @Serializable @SerialName("capabilities") class Capabilities(val capabilities: CallCapabilities): WCallResponse()
+  @Serializable @SerialName("offer") class Offer(val offer: String, val iceCandidates: String, val capabilities: CallCapabilities): WCallResponse()
+  @Serializable @SerialName("answer") class Answer(val answer: String, val iceCandidates: String): WCallResponse()
+  @Serializable @SerialName("ice") class Ice(val iceCandidates: String): WCallResponse()
+  @Serializable @SerialName("connection") class Connection(val state: ConnectionState): WCallResponse()
+  @Serializable @SerialName("connected") class Connected(val connectionInfo: ConnectionInfo): WCallResponse()
+  @Serializable @SerialName("ended") object Ended: WCallResponse()
+  @Serializable @SerialName("ok") object Ok: WCallResponse()
+  @Serializable @SerialName("error") class Error(val message: String): WCallResponse()
+}
+
+@Serializable class WebRTCCallOffer(val callType: CallType, val rtcSession: WebRTCSession)
+@Serializable class WebRTCSession(val rtcSession: String, val rtcIceCandidates: String)
+@Serializable class WebRTCExtraInfo(val rtcIceCandidates: String)
+@Serializable class CallType(val media: CallMediaType, val capabilities: CallCapabilities)
+@Serializable class RcvCallInvitation(val contact: Contact, val callType: CallType, val sharedKey: String?, val callTs: Instant) {
+  val callTypeText: String get() = generalGetString(when(callType.media) {
+    CallMediaType.Video -> if (sharedKey == null) R.string.video_call_no_encryption else R.string.encrypted_video_call
+    CallMediaType.Audio -> if (sharedKey == null) R.string.audio_call_no_encryption else R.string.encrypted_audio_call
+  })
+  val callTitle: String get() = generalGetString(when(callType.media) {
+    CallMediaType.Video -> R.string.incoming_video_call
+    CallMediaType.Audio -> R.string.incoming_audio_call
+  })
+}
+@Serializable class CallCapabilities(val encryption: Boolean)
+@Serializable class ConnectionInfo(private val localCandidate: RTCIceCandidate?, private val remoteCandidate: RTCIceCandidate?) {
+  val text: String @Composable get() = when {
+    localCandidate?.candidateType == RTCIceCandidateType.Host && remoteCandidate?.candidateType == RTCIceCandidateType.Host ->
+      stringResource(R.string.call_connection_peer_to_peer)
+    localCandidate?.candidateType == RTCIceCandidateType.Relay && remoteCandidate?.candidateType == RTCIceCandidateType.Relay ->
+      stringResource(R.string.call_connection_via_relay)
+    else ->
+      "${localCandidate?.candidateType?.value ?: "unknown"} / ${remoteCandidate?.candidateType?.value ?: "unknown"}"
+  }
+}
+// https://developer.mozilla.org/en-US/docs/Web/API/RTCIceCandidate
+@Serializable class RTCIceCandidate(val candidateType: RTCIceCandidateType?)
+// https://developer.mozilla.org/en-US/docs/Web/API/RTCIceServer
+@Serializable class RTCIceServer(val urls: List<String>, val username: String? = null, val credential: String? = null)
+
+// https://developer.mozilla.org/en-US/docs/Web/API/RTCIceCandidate/type
+@Serializable
+enum class RTCIceCandidateType(val value: String) {
+  @SerialName("host") Host("host"),
+  @SerialName("srflx") ServerReflexive("srflx"),
+  @SerialName("prflx") PeerReflexive("prflx"),
+  @SerialName("relay") Relay("relay")
+}
+
+@Serializable
+enum class WebRTCCallStatus(val value: String) {
+  @SerialName("connected") Connected("connected"),
+  @SerialName("connecting") Connecting("connecting"),
+  @SerialName("disconnected") Disconnected("disconnected"),
+  @SerialName("failed") Failed("failed")
+}
+
+@Serializable
+enum class CallMediaType {
+  @SerialName("video") Video,
+  @SerialName("audio") Audio
+}
+
+@Serializable
+enum class VideoCamera {
+  @SerialName("user") User,
+  @SerialName("environment") Environment;
+  val flipped: VideoCamera get() = if (this == User) Environment else User
+}
+
+@Serializable
+class ConnectionState(
+  val connectionState: String,
+  val iceConnectionState: String,
+  val iceGatheringState: String,
+  val signalingState: String
+)

apps/android/app/src/main/java/chat/simplex/app/views/chat/ChatInfoView.kt

@@ -0,0 +1,280 @@
+package chat.simplex.app.views.chat
+
+import InfoRow
+import SectionDivider
+import SectionItemView
+import SectionSpacer
+import SectionView
+import androidx.activity.compose.BackHandler
+import androidx.compose.foundation.*
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.*
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.helpers.*
+
+@Composable
+fun ChatInfoView(chatModel: ChatModel, connStats: ConnectionStats?, close: () -> Unit) {
+  BackHandler(onBack = close)
+  val chat = chatModel.chats.firstOrNull { it.id == chatModel.chatId.value }
+  val developerTools = chatModel.controller.appPrefs.developerTools.get()
+  if (chat != null) {
+    ChatInfoLayout(
+      chat,
+      connStats,
+      developerTools,
+      deleteContact = { deleteContactDialog(chat.chatInfo, chatModel, close) },
+      clearChat = { clearChatDialog(chat.chatInfo, chatModel, close) }
+    )
+  }
+}
+
+fun deleteContactDialog(chatInfo: ChatInfo, chatModel: ChatModel, close: (() -> Unit)? = null) {
+  AlertManager.shared.showAlertMsg(
+    title = generalGetString(R.string.delete_contact_question),
+    text = generalGetString(R.string.delete_contact_all_messages_deleted_cannot_undo_warning),
+    confirmText = generalGetString(R.string.delete_verb),
+    onConfirm = {
+      withApi {
+        val r = chatModel.controller.apiDeleteChat(chatInfo.chatType, chatInfo.apiId)
+        if (r) {
+          chatModel.removeChat(chatInfo.id)
+          chatModel.chatId.value = null
+          chatModel.controller.ntfManager.cancelNotificationsForChat(chatInfo.id)
+          close?.invoke()
+        }
+      }
+    }
+  )
+}
+
+fun clearChatDialog(chatInfo: ChatInfo, chatModel: ChatModel, close: (() -> Unit)? = null) {
+  AlertManager.shared.showAlertMsg(
+    title = generalGetString(R.string.clear_chat_question),
+    text = generalGetString(R.string.clear_chat_warning),
+    confirmText = generalGetString(R.string.clear_verb),
+    onConfirm = {
+      withApi {
+        val updatedChatInfo = chatModel.controller.apiClearChat(chatInfo.chatType, chatInfo.apiId)
+        if (updatedChatInfo != null) {
+          chatModel.clearChat(updatedChatInfo)
+          chatModel.controller.ntfManager.cancelNotificationsForChat(chatInfo.id)
+          close?.invoke()
+        }
+      }
+    }
+  )
+}
+
+@Composable
+fun ChatInfoLayout(
+  chat: Chat,
+  connStats: ConnectionStats?,
+  developerTools: Boolean,
+  deleteContact: () -> Unit,
+  clearChat: () -> Unit
+) {
+  Column(
+    Modifier
+      .fillMaxWidth()
+      .verticalScroll(rememberScrollState()),
+    horizontalAlignment = Alignment.Start
+  ) {
+    Row(
+      Modifier.fillMaxWidth(),
+      horizontalArrangement = Arrangement.Center
+    ) {
+      ChatInfoHeader(chat.chatInfo)
+    }
+    SectionSpacer()
+
+    if (connStats != null) {
+      SectionView(title = stringResource(R.string.conn_stats_section_title_servers)) {
+        SectionItemView {
+          NetworkStatusRow(chat.serverInfo.networkStatus)
+        }
+        val rcvServers = connStats.rcvServers
+        if (rcvServers != null && rcvServers.isNotEmpty()) {
+          SectionDivider()
+          SimplexServers(stringResource(R.string.receiving_via), rcvServers)
+        }
+        val sndServers = connStats.sndServers
+        if (sndServers != null && sndServers.isNotEmpty()) {
+          SectionDivider()
+          SimplexServers(stringResource(R.string.sending_via), sndServers)
+        }
+      }
+      SectionSpacer()
+    }
+
+    SectionView {
+      SectionItemView {
+        ClearChatButton(clearChat)
+      }
+      SectionDivider()
+      SectionItemView {
+        DeleteContactButton(deleteContact)
+      }
+    }
+    SectionSpacer()
+
+    if (developerTools) {
+      SectionView(title = stringResource(R.string.section_title_for_console)) {
+        InfoRow(stringResource(R.string.info_row_local_name), chat.chatInfo.localDisplayName)
+        SectionDivider()
+        InfoRow(stringResource(R.string.info_row_database_id), chat.chatInfo.apiId.toString())
+      }
+      SectionSpacer()
+    }
+  }
+}
+
+@Composable
+fun ChatInfoHeader(cInfo: ChatInfo) {
+  Column(
+    Modifier.padding(horizontal = 8.dp),
+    horizontalAlignment = Alignment.CenterHorizontally
+  ) {
+    ChatInfoImage(cInfo, size = 192.dp, iconColor = if (isSystemInDarkTheme()) GroupDark else SettingsSecondaryLight)
+    Text(
+      cInfo.displayName, style = MaterialTheme.typography.h1.copy(fontWeight = FontWeight.Normal),
+      color = MaterialTheme.colors.onBackground,
+      maxLines = 1,
+      overflow = TextOverflow.Ellipsis
+    )
+    if (cInfo.fullName != "" && cInfo.fullName != cInfo.displayName) {
+      Text(
+        cInfo.fullName, style = MaterialTheme.typography.h2,
+        color = MaterialTheme.colors.onBackground,
+        maxLines = 2,
+        overflow = TextOverflow.Ellipsis
+      )
+    }
+  }
+}
+
+@Composable
+fun NetworkStatusRow(networkStatus: Chat.NetworkStatus) {
+  Row(
+    Modifier
+      .fillMaxSize()
+      .clickable {
+        AlertManager.shared.showAlertMsg(
+          generalGetString(R.string.network_status),
+          networkStatus.statusExplanation
+        )
+      },
+    horizontalArrangement = Arrangement.SpaceBetween,
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Row(
+      verticalAlignment = Alignment.CenterVertically,
+      horizontalArrangement = Arrangement.spacedBy(4.dp)
+    ) {
+      Text(stringResource(R.string.network_status))
+      Icon(
+        Icons.Outlined.Info,
+        stringResource(R.string.network_status),
+        tint = MaterialTheme.colors.primary
+      )
+    }
+
+    Row(
+      verticalAlignment = Alignment.CenterVertically,
+      horizontalArrangement = Arrangement.spacedBy(4.dp)
+    ) {
+      Text(
+        networkStatus.statusString,
+        color = HighOrLowlight
+      )
+      ServerImage(networkStatus)
+    }
+  }
+}
+
+@Composable
+fun ServerImage(networkStatus: Chat.NetworkStatus) {
+  Box(Modifier.size(18.dp)) {
+    when (networkStatus) {
+      is Chat.NetworkStatus.Connected ->
+        Icon(Icons.Filled.Circle, stringResource(R.string.icon_descr_server_status_connected), tint = MaterialTheme.colors.primaryVariant)
+      is Chat.NetworkStatus.Disconnected ->
+        Icon(Icons.Filled.Pending, stringResource(R.string.icon_descr_server_status_disconnected), tint = HighOrLowlight)
+      is Chat.NetworkStatus.Error ->
+        Icon(Icons.Filled.Error, stringResource(R.string.icon_descr_server_status_error), tint = HighOrLowlight)
+      else -> Icon(Icons.Outlined.Circle, stringResource(R.string.icon_descr_server_status_pending), tint = HighOrLowlight)
+    }
+  }
+}
+
+@Composable
+fun SimplexServers(text: String, servers: List<String>) {
+  val info = servers.joinToString(separator = ", ") { it.substringAfter("@") }
+  InfoRow(text, info)
+}
+
+@Composable
+fun ClearChatButton(clearChat: () -> Unit) {
+  Row(
+    Modifier
+      .fillMaxSize()
+      .clickable { clearChat() },
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Icon(
+      Icons.Outlined.Restore,
+      stringResource(R.string.clear_chat_button),
+      tint = WarningOrange
+    )
+    Spacer(Modifier.size(8.dp))
+    Text(stringResource(R.string.clear_chat_button), color = WarningOrange)
+  }
+}
+
+@Composable
+fun DeleteContactButton(deleteContact: () -> Unit) {
+  Row(
+    Modifier
+      .fillMaxSize()
+      .clickable { deleteContact() },
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Icon(
+      Icons.Outlined.Delete,
+      stringResource(R.string.button_delete_contact),
+      tint = Color.Red
+    )
+    Spacer(Modifier.size(8.dp))
+    Text(stringResource(R.string.button_delete_contact), color = Color.Red)
+  }
+}
+
+@Preview
+@Composable
+fun PreviewChatInfoLayout() {
+  SimpleXTheme {
+    ChatInfoLayout(
+      chat = Chat(
+        chatInfo = ChatInfo.Direct.sampleData,
+        chatItems = arrayListOf(),
+        serverInfo = Chat.ServerInfo(Chat.NetworkStatus.Error("agent BROKER TIMEOUT"))
+      ),
+      developerTools = false,
+      connStats = null,
+      deleteContact = {}, clearChat = {}
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/ChatView.kt

@@ -0,0 +1,866 @@
+package chat.simplex.app.views.chat
+
+import android.content.res.Configuration
+import androidx.activity.compose.BackHandler
+import androidx.compose.foundation.*
+import androidx.compose.foundation.gestures.*
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.*
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.KeyboardArrowDown
+import androidx.compose.material.icons.filled.MoreVert
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.*
+import androidx.compose.runtime.saveable.mapSaver
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.*
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.capitalize
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.intl.Locale
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.*
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.call.*
+import chat.simplex.app.views.chat.group.AddGroupMembersView
+import chat.simplex.app.views.chat.group.GroupChatInfoView
+import chat.simplex.app.views.chat.item.ChatItemView
+import chat.simplex.app.views.chat.item.ItemAction
+import chat.simplex.app.views.chatlist.*
+import chat.simplex.app.views.helpers.*
+import chat.simplex.app.views.helpers.AppBarHeight
+import com.google.accompanist.insets.ProvideWindowInsets
+import com.google.accompanist.insets.navigationBarsWithImePadding
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.*
+import kotlinx.datetime.Clock
+
+@Composable
+fun ChatView(chatModel: ChatModel) {
+  var activeChat by remember { mutableStateOf(chatModel.chats.firstOrNull { chat -> chat.chatInfo.id == chatModel.chatId.value }) }
+  val searchText = remember { mutableStateOf("") }
+  val user = chatModel.currentUser.value
+  val useLinkPreviews = chatModel.controller.appPrefs.privacyLinkPreviews.get()
+  val composeState = remember { mutableStateOf(ComposeState(useLinkPreviews = useLinkPreviews)) }
+  val attachmentOption = remember { mutableStateOf<AttachmentOption?>(null) }
+  val attachmentBottomSheetState = rememberModalBottomSheetState(initialValue = ModalBottomSheetValue.Hidden)
+  val scope = rememberCoroutineScope()
+
+  if (activeChat == null || user == null) {
+    chatModel.chatId.value = null
+  } else {
+    val chat = activeChat!!
+    BackHandler { chatModel.chatId.value = null }
+
+    // We need to have real unreadCount value for displaying it inside top right button
+    // Having activeChat reloaded on every change in it is inefficient (UI lags)
+    val unreadCount = remember {
+      derivedStateOf {
+        chatModel.chats.firstOrNull { chat -> chat.chatInfo.id == chatModel.chatId.value }?.chatStats?.unreadCount ?: 0
+      }
+    }
+
+    ChatLayout(
+      user,
+      chat,
+      unreadCount,
+      composeState,
+      composeView = {
+        if (chat.chatInfo.sendMsgEnabled) {
+          ComposeView(
+            chatModel, chat, composeState, attachmentOption,
+            showChooseAttachment = { scope.launch { attachmentBottomSheetState.show() } }
+          )
+        }
+      },
+      attachmentOption,
+      scope,
+      attachmentBottomSheetState,
+      chatModel.chatItems,
+      searchText,
+      useLinkPreviews = useLinkPreviews,
+      back = { chatModel.chatId.value = null },
+      info = {
+        withApi {
+          val cInfo = chat.chatInfo
+          if (cInfo is ChatInfo.Direct) {
+            val connStats = chatModel.controller.apiContactInfo(cInfo.apiId)
+            ModalManager.shared.showCustomModal { close ->
+              ModalView(
+                close = close, modifier = Modifier,
+                background = if (isSystemInDarkTheme()) MaterialTheme.colors.background else SettingsBackgroundLight
+              ) {
+                ChatInfoView(chatModel, connStats, close)
+              }
+            }
+          } else if (cInfo is ChatInfo.Group) {
+            setGroupMembers(cInfo.groupInfo, chatModel)
+            ModalManager.shared.showCustomModal { close ->
+              ModalView(
+                close = close, modifier = Modifier,
+                background = if (isSystemInDarkTheme()) MaterialTheme.colors.background else SettingsBackgroundLight
+              ) {
+                GroupChatInfoView(chatModel, close)
+              }
+            }
+          }
+        }
+      },
+      openDirectChat = { contactId ->
+        val c = chatModel.chats.firstOrNull {
+          it.chatInfo is ChatInfo.Direct && it.chatInfo.contact.contactId == contactId
+        }
+        if (c != null) {
+          withApi {
+            openChat(c.chatInfo, chatModel)
+            // Redisplay the whole hierarchy if the chat is different to make going from groups to direct chat working correctly
+            activeChat = c
+          }
+        }
+      },
+      loadPrevMessages = { cInfo ->
+        val c = chatModel.getChat(cInfo.id)
+        val firstId = chatModel.chatItems.firstOrNull()?.id
+        if (c != null && firstId != null) {
+          withApi {
+            apiLoadPrevMessages(c.chatInfo, chatModel, firstId, searchText.value)
+          }
+        }
+      },
+      deleteMessage = { itemId, mode ->
+        withApi {
+          val cInfo = chat.chatInfo
+          val toItem = chatModel.controller.apiDeleteChatItem(
+            type = cInfo.chatType,
+            id = cInfo.apiId,
+            itemId = itemId,
+            mode = mode
+          )
+          if (toItem != null) chatModel.removeChatItem(cInfo, toItem.chatItem)
+        }
+      },
+      receiveFile = { fileId ->
+        withApi { chatModel.controller.receiveFile(fileId) }
+      },
+      joinGroup = { groupId ->
+        withApi { chatModel.controller.apiJoinGroup(groupId) }
+      },
+      startCall = { media ->
+        val cInfo = chat.chatInfo
+        if (cInfo is ChatInfo.Direct) {
+          chatModel.activeCall.value = Call(contact = cInfo.contact, callState = CallState.WaitCapabilities, localMedia = media)
+          chatModel.showCallView.value = true
+          chatModel.callCommand.value = WCallCommand.Capabilities
+        }
+      },
+      acceptCall = { contact ->
+        val invitation = chatModel.callInvitations.remove(contact.id)
+        if (invitation == null) {
+          AlertManager.shared.showAlertMsg("Call already ended!")
+        } else {
+          chatModel.callManager.acceptIncomingCall(invitation = invitation)
+        }
+      },
+      addMembers = { groupInfo ->
+        withApi {
+          setGroupMembers(groupInfo, chatModel)
+          ModalManager.shared.showCustomModal { close ->
+            ModalView(
+              close = close, modifier = Modifier,
+              background = if (isSystemInDarkTheme()) MaterialTheme.colors.background else SettingsBackgroundLight
+            ) {
+              AddGroupMembersView(groupInfo, chatModel, close)
+            }
+          }
+        }
+      },
+      markRead = { range, unreadCountAfter ->
+        chatModel.markChatItemsRead(chat.chatInfo, range, unreadCountAfter)
+        chatModel.controller.ntfManager.cancelNotificationsForChat(chat.id)
+        withApi {
+          chatModel.controller.apiChatRead(
+            chat.chatInfo.chatType,
+            chat.chatInfo.apiId,
+            range
+          )
+        }
+      },
+      onSearchValueChanged = { value ->
+        if (searchText.value == value) return@ChatLayout
+        val c = chatModel.getChat(chat.chatInfo.id) ?: return@ChatLayout
+        withApi {
+          apiFindMessages(c.chatInfo, chatModel, value)
+          searchText.value = value
+        }
+      }
+    )
+  }
+}
+
+@Composable
+fun ChatLayout(
+  user: User,
+  chat: Chat,
+  unreadCount: State<Int>,
+  composeState: MutableState<ComposeState>,
+  composeView: (@Composable () -> Unit),
+  attachmentOption: MutableState<AttachmentOption?>,
+  scope: CoroutineScope,
+  attachmentBottomSheetState: ModalBottomSheetState,
+  chatItems: List<ChatItem>,
+  searchValue: State<String>,
+  useLinkPreviews: Boolean,
+  back: () -> Unit,
+  info: () -> Unit,
+  openDirectChat: (Long) -> Unit,
+  loadPrevMessages: (ChatInfo) -> Unit,
+  deleteMessage: (Long, CIDeleteMode) -> Unit,
+  receiveFile: (Long) -> Unit,
+  joinGroup: (Long) -> Unit,
+  startCall: (CallMediaType) -> Unit,
+  acceptCall: (Contact) -> Unit,
+  addMembers: (GroupInfo) -> Unit,
+  markRead: (CC.ItemRange, unreadCountAfter: Int?) -> Unit,
+  onSearchValueChanged: (String) -> Unit,
+) {
+  Surface(
+    Modifier
+      .fillMaxWidth()
+      .background(MaterialTheme.colors.background)
+  ) {
+    ProvideWindowInsets(windowInsetsAnimationsEnabled = true) {
+      ModalBottomSheetLayout(
+        scrimColor = Color.Black.copy(alpha = 0.12F),
+        modifier = Modifier.navigationBarsWithImePadding(),
+        sheetContent = {
+          ChooseAttachmentView(
+            attachmentOption,
+            hide = { scope.launch { attachmentBottomSheetState.hide() } }
+          )
+        },
+        sheetState = attachmentBottomSheetState,
+        sheetShape = RoundedCornerShape(topStart = 18.dp, topEnd = 18.dp)
+      ) {
+        val floatingButton: MutableState<@Composable () -> Unit> = remember { mutableStateOf({}) }
+        Scaffold(
+          topBar = { ChatInfoToolbar(chat, back, info, startCall, addMembers, onSearchValueChanged) },
+          bottomBar = composeView,
+          modifier = Modifier.navigationBarsWithImePadding(),
+          floatingActionButton = floatingButton.value,
+        ) { contentPadding ->
+          CompositionLocalProvider(
+            // Makes horizontal and vertical scrolling to coexist nicely.
+            // With default touchSlop when you scroll LazyColumn, you can unintentionally open reply view
+            LocalViewConfiguration provides LocalViewConfiguration.current.bigTouchSlop()
+          ) {
+            BoxWithConstraints(Modifier.padding(contentPadding)) {
+              ChatItemsList(
+                user, chat, unreadCount, composeState, chatItems, searchValue,
+                useLinkPreviews, openDirectChat, loadPrevMessages, deleteMessage,
+                receiveFile, joinGroup, acceptCall, markRead, floatingButton
+              )
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+@Composable
+fun ChatInfoToolbar(
+  chat: Chat,
+  back: () -> Unit,
+  info: () -> Unit,
+  startCall: (CallMediaType) -> Unit,
+  addMembers: (GroupInfo) -> Unit,
+  onSearchValueChanged: (String) -> Unit,
+) {
+  var showMenu by remember { mutableStateOf(false) }
+  var showSearch by remember { mutableStateOf(false) }
+  val onBackClicked = {
+    if (!showSearch) {
+      back()
+    } else {
+      onSearchValueChanged("")
+      showSearch = false
+    }
+  }
+  BackHandler(onBack = onBackClicked)
+  val barButtons = arrayListOf<@Composable RowScope.() -> Unit>()
+  val menuItems = arrayListOf<@Composable () -> Unit>()
+  menuItems.add {
+    ItemAction(stringResource(android.R.string.search_go).capitalize(Locale.current), Icons.Outlined.Search, onClick = {
+      showMenu = false
+      showSearch = true
+    })
+  }
+
+  if (chat.chatInfo is ChatInfo.Direct) {
+    barButtons.add {
+      IconButton({
+        showMenu = false
+        startCall(CallMediaType.Audio)
+      }) {
+        Icon(Icons.Outlined.Phone, stringResource(R.string.icon_descr_more_button), tint = MaterialTheme.colors.primary)
+      }
+    }
+    menuItems.add {
+      ItemAction(stringResource(R.string.icon_descr_video_call).capitalize(Locale.current), Icons.Outlined.Videocam, onClick = {
+        showMenu = false
+        startCall(CallMediaType.Video)
+      })
+    }
+  } else if (chat.chatInfo is ChatInfo.Group && chat.chatInfo.groupInfo.canAddMembers) {
+    barButtons.add {
+      IconButton({
+        showMenu = false
+        addMembers(chat.chatInfo.groupInfo)
+      }) {
+        Icon(Icons.Outlined.PersonAdd, stringResource(R.string.icon_descr_add_members), tint = MaterialTheme.colors.primary)
+      }
+    }
+  }
+  barButtons.add {
+    IconButton({ showMenu = true }) {
+      Icon(Icons.Default.MoreVert, stringResource(R.string.icon_descr_more_button), tint = MaterialTheme.colors.primary)
+    }
+  }
+
+  DefaultTopAppBar(
+    navigationButton = { NavigationButtonBack(onBackClicked) },
+    title = { ChatInfoToolbarTitle(chat.chatInfo) },
+    onTitleClick = info,
+    showSearch = showSearch,
+    onSearchValueChanged = onSearchValueChanged,
+    buttons = barButtons
+  )
+
+  Divider(Modifier.padding(top = AppBarHeight))
+
+  Box(Modifier.fillMaxWidth().wrapContentSize(Alignment.TopEnd).offset(y = AppBarHeight)) {
+    DropdownMenu(
+      expanded = showMenu,
+      onDismissRequest = { showMenu = false },
+      Modifier.widthIn(min = 220.dp)
+    ) {
+      menuItems.forEach { it() }
+    }
+  }
+}
+
+@Composable
+fun ChatInfoToolbarTitle(cInfo: ChatInfo, imageSize: Dp = 40.dp, iconColor: Color = MaterialTheme.colors.secondary) {
+  Row(
+    horizontalArrangement = Arrangement.Center,
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    ChatInfoImage(cInfo, size = imageSize, iconColor)
+    Column(
+      Modifier.padding(start = 8.dp),
+      horizontalAlignment = Alignment.CenterHorizontally
+    ) {
+      Text(
+        cInfo.displayName, fontWeight = FontWeight.SemiBold,
+        maxLines = 1, overflow = TextOverflow.Ellipsis
+      )
+      if (cInfo.fullName != "" && cInfo.fullName != cInfo.displayName) {
+        Text(
+          cInfo.fullName,
+          maxLines = 1, overflow = TextOverflow.Ellipsis
+        )
+      }
+    }
+  }
+}
+
+data class CIListState(val scrolled: Boolean, val itemCount: Int, val keyboardState: KeyboardState)
+
+val CIListStateSaver = run {
+  val scrolledKey = "scrolled"
+  val countKey = "itemCount"
+  val keyboardKey = "keyboardState"
+  mapSaver(
+    save = { mapOf(scrolledKey to it.scrolled, countKey to it.itemCount, keyboardKey to it.keyboardState) },
+    restore = { CIListState(it[scrolledKey] as Boolean, it[countKey] as Int, it[keyboardKey] as KeyboardState) }
+  )
+}
+
+@Composable
+fun BoxWithConstraintsScope.ChatItemsList(
+  user: User,
+  chat: Chat,
+  unreadCount: State<Int>,
+  composeState: MutableState<ComposeState>,
+  chatItems: List<ChatItem>,
+  searchValue: State<String>,
+  useLinkPreviews: Boolean,
+  openDirectChat: (Long) -> Unit,
+  loadPrevMessages: (ChatInfo) -> Unit,
+  deleteMessage: (Long, CIDeleteMode) -> Unit,
+  receiveFile: (Long) -> Unit,
+  joinGroup: (Long) -> Unit,
+  acceptCall: (Contact) -> Unit,
+  markRead: (CC.ItemRange, unreadCountAfter: Int?) -> Unit,
+  floatingButton: MutableState<@Composable () -> Unit>
+) {
+  val listState = rememberLazyListState()
+  val scope = rememberCoroutineScope()
+  val uriHandler = LocalUriHandler.current
+  val cxt = LocalContext.current
+
+  // Helps to scroll to bottom after moving from Group to Direct chat
+  // and prevents scrolling to bottom on orientation change
+  var shouldAutoScroll by rememberSaveable { mutableStateOf(true) }
+  LaunchedEffect(chat.chatInfo.apiId, chat.chatInfo.chatType, shouldAutoScroll) {
+    if (shouldAutoScroll && listState.firstVisibleItemIndex != 0) {
+      scope.launch { listState.scrollToItem(0) }
+    }
+    // Don't autoscroll next time until it will be needed
+    shouldAutoScroll = false
+  }
+  var prevSearchEmptiness by rememberSaveable { mutableStateOf(searchValue.value.isEmpty()) }
+  // Scroll to bottom when search value changes from something to nothing and back
+  LaunchedEffect(searchValue.value.isEmpty()) {
+    // They are equal when orientation was changed, don't need to scroll.
+    // LaunchedEffect unaware of this event since it uses remember, not rememberSaveable
+    if (prevSearchEmptiness == searchValue.value.isEmpty()) return@LaunchedEffect
+    prevSearchEmptiness = searchValue.value.isEmpty()
+
+    if (listState.firstVisibleItemIndex != 0) {
+      scope.launch { listState.scrollToItem(0) }
+    }
+  }
+
+  PreloadItems(listState, ChatPagination.UNTIL_PRELOAD_COUNT, chat, chatItems) { c ->
+    loadPrevMessages(c.chatInfo)
+  }
+
+  Spacer(Modifier.size(8.dp))
+
+  val reversedChatItems by remember { derivedStateOf { chatItems.reversed() } }
+  LazyColumn(state = listState, reverseLayout = true) {
+    itemsIndexed(reversedChatItems) { i, cItem ->
+      val dismissState = rememberDismissState(initialValue = DismissValue.Default) { false }
+      val directions = setOf(DismissDirection.EndToStart)
+      val swipeableModifier = SwipeToDismissModifier(
+        state = dismissState,
+        directions = directions,
+        swipeDistance = with(LocalDensity.current) { 30.dp.toPx() },
+      )
+      val swipedToEnd = (dismissState.overflow.value > 0f && directions.contains(DismissDirection.StartToEnd))
+      val swipedToStart = (dismissState.overflow.value < 0f && directions.contains(DismissDirection.EndToStart))
+      if (dismissState.isAnimationRunning && (swipedToStart || swipedToEnd)) {
+        LaunchedEffect(Unit) {
+          scope.launch {
+            if (composeState.value.editing) {
+              composeState.value = ComposeState(contextItem = ComposeContextItem.QuotedItem(cItem), useLinkPreviews = useLinkPreviews)
+            } else {
+              composeState.value = composeState.value.copy(contextItem = ComposeContextItem.QuotedItem(cItem))
+            }
+          }
+        }
+      }
+
+      if (chat.chatInfo is ChatInfo.Group) {
+        if (cItem.chatDir is CIDirection.GroupRcv) {
+          val prevItem = if (i < reversedChatItems.lastIndex) reversedChatItems[i + 1] else null
+          val member = cItem.chatDir.groupMember
+          val showMember = showMemberImage(member, prevItem)
+          Row(Modifier.padding(start = 8.dp, end = 66.dp).then(swipeableModifier)) {
+            if (showMember) {
+              val contactId = member.memberContactId
+              if (contactId == null) {
+                MemberImage(member)
+              } else {
+                Box(
+                  Modifier
+                    .clip(CircleShape)
+                    .clickable {
+                      openDirectChat(contactId)
+                      // Scroll to first unread message when direct chat will be loaded
+                      shouldAutoScroll = true
+                    }
+                ) {
+                  MemberImage(member)
+                }
+              }
+              Spacer(Modifier.size(4.dp))
+            } else {
+              Spacer(Modifier.size(42.dp))
+            }
+            ChatItemView(user, chat.chatInfo, cItem, composeState, cxt, uriHandler, showMember = showMember, useLinkPreviews = useLinkPreviews, deleteMessage = deleteMessage, receiveFile = receiveFile, joinGroup = {}, acceptCall = acceptCall)
+          }
+        } else {
+          Box(Modifier.padding(start = 86.dp, end = 12.dp).then(swipeableModifier)) {
+            ChatItemView(user, chat.chatInfo, cItem, composeState, cxt, uriHandler, useLinkPreviews = useLinkPreviews, deleteMessage = deleteMessage, receiveFile = receiveFile, joinGroup = {}, acceptCall = acceptCall)
+          }
+        }
+      } else { // direct message
+        val sent = cItem.chatDir.sent
+        Box(
+          Modifier.padding(
+            start = if (sent) 76.dp else 12.dp,
+            end = if (sent) 12.dp else 76.dp,
+          ).then(swipeableModifier)
+        ) {
+          ChatItemView(user, chat.chatInfo, cItem, composeState, cxt, uriHandler, useLinkPreviews = useLinkPreviews, deleteMessage = deleteMessage, receiveFile = receiveFile, joinGroup = joinGroup, acceptCall = acceptCall)
+        }
+      }
+
+      if (cItem.isRcvNew) {
+        LaunchedEffect(cItem.id) {
+          scope.launch {
+            delay(750)
+            markRead(CC.ItemRange(cItem.id, cItem.id), null)
+          }
+        }
+      }
+    }
+  }
+  FloatingButtons(chatItems, unreadCount, chat.chatStats.minUnreadItemId, searchValue, markRead, floatingButton, listState)
+}
+
+@Composable
+fun BoxWithConstraintsScope.FloatingButtons(
+  chatItems: List<ChatItem>,
+  unreadCount: State<Int>,
+  minUnreadItemId: Long,
+  searchValue: State<String>,
+  markRead: (CC.ItemRange, unreadCountAfter: Int?) -> Unit,
+  floatingButton: MutableState<@Composable () -> Unit>,
+  listState: LazyListState
+) {
+  val scope = rememberCoroutineScope()
+
+  var firstVisibleIndex by remember { mutableStateOf(listState.firstVisibleItemIndex) }
+  var lastIndexOfVisibleItems by remember { mutableStateOf(listState.layoutInfo.visibleItemsInfo.lastIndex) }
+  var firstItemIsVisible by remember { mutableStateOf(firstVisibleIndex == 0)  }
+
+  LaunchedEffect(listState) {
+    snapshotFlow { listState.firstVisibleItemIndex }
+      .distinctUntilChanged()
+      .collect {
+        firstVisibleIndex = it
+        firstItemIsVisible = firstVisibleIndex == 0
+      }
+    snapshotFlow { listState.layoutInfo.visibleItemsInfo.lastIndex }
+      .distinctUntilChanged()
+      .collect {
+        lastIndexOfVisibleItems = it
+      }
+  }
+
+  val bottomUnreadCount by remember {
+    derivedStateOf {
+      if (unreadCount.value == 0) return@derivedStateOf 0
+
+      val from = chatItems.lastIndex - firstVisibleIndex - lastIndexOfVisibleItems
+      if (chatItems.size <= from || from < 0) return@derivedStateOf 0
+
+      chatItems.subList(from, chatItems.size).count { it.isRcvNew }
+    }
+  }
+
+  val firstVisibleOffset = (-with(LocalDensity.current) { maxHeight.roundToPx() } * 0.8).toInt()
+
+  LaunchedEffect(bottomUnreadCount, firstItemIsVisible) {
+    val showButtonWithCounter = bottomUnreadCount > 0 && !firstItemIsVisible && searchValue.value.isEmpty()
+    val showButtonWithArrow = !showButtonWithCounter && !firstItemIsVisible
+    floatingButton.value = bottomEndFloatingButton(
+      bottomUnreadCount,
+      showButtonWithCounter,
+      showButtonWithArrow,
+      onClickArrowDown = {
+        scope.launch { listState.animateScrollToItem(0) }
+      },
+      onClickCounter = {
+        scope.launch { listState.animateScrollToItem(kotlin.math.max(0, bottomUnreadCount - 1), firstVisibleOffset) }
+      }
+    )
+  }
+  // Don't show top FAB if is in search
+  if (searchValue.value.isNotEmpty()) return
+  val fabSize = 56.dp
+  val topUnreadCount by remember {
+    derivedStateOf { unreadCount.value - bottomUnreadCount }
+  }
+  val showButtonWithCounter = topUnreadCount > 0
+  val height = with(LocalDensity.current) { maxHeight.toPx() }
+  var showDropDown by remember { mutableStateOf(false) }
+
+  TopEndFloatingButton(
+    Modifier.padding(end = 16.dp, top = 24.dp).align(Alignment.TopEnd),
+    topUnreadCount,
+    showButtonWithCounter,
+    onClick = { scope.launch { listState.animateScrollBy(height) } },
+    onLongClick = { showDropDown = true }
+  )
+
+  DropdownMenu(
+    expanded = showDropDown,
+    onDismissRequest = { showDropDown = false },
+    Modifier.width(220.dp),
+    offset = DpOffset(maxWidth - 16.dp, 24.dp + fabSize)
+  ) {
+    DropdownMenuItem(
+      onClick = {
+        markRead(
+          CC.ItemRange(minUnreadItemId, chatItems[chatItems.size - listState.layoutInfo.visibleItemsInfo.lastIndex - 1].id - 1),
+          bottomUnreadCount
+        )
+        showDropDown = false
+      }
+    ) {
+      Text(
+        generalGetString(R.string.mark_read),
+        maxLines = 1,
+      )
+    }
+  }
+}
+
+@Composable
+fun PreloadItems(
+  listState: LazyListState,
+  remaining: Int = 10,
+  chat: Chat,
+  items: List<*>,
+  onLoadMore: (chat: Chat) -> Unit,
+) {
+  LaunchedEffect(listState, chat, items) {
+    snapshotFlow { listState.layoutInfo }
+      .map {
+        val totalItemsNumber = it.totalItemsCount
+        val lastVisibleItemIndex = (it.visibleItemsInfo.lastOrNull()?.index ?: 0) + 1
+        if (lastVisibleItemIndex > (totalItemsNumber - remaining))
+          totalItemsNumber
+        else
+          0
+      }
+      .distinctUntilChanged()
+      .filter { it > 0 }
+      .collect {
+        onLoadMore(chat)
+      }
+  }
+}
+
+fun showMemberImage(member: GroupMember, prevItem: ChatItem?): Boolean {
+  return prevItem == null || prevItem.chatDir is CIDirection.GroupSnd ||
+      (prevItem.chatDir is CIDirection.GroupRcv && prevItem.chatDir.groupMember.groupMemberId != member.groupMemberId)
+}
+
+@Composable
+fun MemberImage(member: GroupMember) {
+  ProfileImage(38.dp, member.memberProfile.image)
+}
+
+@Composable
+private fun TopEndFloatingButton(
+  modifier: Modifier = Modifier,
+  unreadCount: Int,
+  showButtonWithCounter: Boolean,
+  onClick: () -> Unit,
+  onLongClick: () -> Unit
+) = when {
+  showButtonWithCounter -> {
+    val interactionSource = interactionSourceWithDetection(onClick, onLongClick)
+    FloatingActionButton(
+      {}, // no action here
+      modifier.size(48.dp),
+      elevation = FloatingActionButtonDefaults.elevation(0.dp, 0.dp),
+      interactionSource = interactionSource,
+    ) {
+      Text(
+        unreadCountStr(unreadCount),
+        color = MaterialTheme.colors.primary,
+        fontSize = 14.sp,
+      )
+    }
+  }
+  else -> {
+  }
+}
+
+private fun bottomEndFloatingButton(
+  unreadCount: Int,
+  showButtonWithCounter: Boolean,
+  showButtonWithArrow: Boolean,
+  onClickArrowDown: () -> Unit,
+  onClickCounter: () -> Unit
+): @Composable () -> Unit = when {
+  showButtonWithCounter -> {
+    {
+      FloatingActionButton(
+        onClick = onClickCounter,
+        elevation = FloatingActionButtonDefaults.elevation(0.dp, 0.dp, 0.dp, 0.dp),
+        modifier = Modifier.size(48.dp)
+      ) {
+        Text(
+          unreadCountStr(unreadCount),
+          color = MaterialTheme.colors.primary,
+          fontSize = 14.sp,
+        )
+      }
+    }
+  }
+  showButtonWithArrow -> {
+    {
+      FloatingActionButton(
+        onClick = onClickArrowDown,
+        elevation = FloatingActionButtonDefaults.elevation(0.dp, 0.dp, 0.dp, 0.dp),
+        modifier = Modifier.size(48.dp)
+      ) {
+        Icon(
+          imageVector = Icons.Default.KeyboardArrowDown,
+          contentDescription = null,
+          tint = MaterialTheme.colors.primary
+        )
+      }
+    }
+  }
+  else -> {
+    {}
+  }
+}
+
+private fun ViewConfiguration.bigTouchSlop(slop: Float = 80f) = object: ViewConfiguration {
+  override val longPressTimeoutMillis
+    get() =
+      this@bigTouchSlop.longPressTimeoutMillis
+  override val doubleTapTimeoutMillis
+    get() =
+      this@bigTouchSlop.doubleTapTimeoutMillis
+  override val doubleTapMinTimeMillis
+    get() =
+      this@bigTouchSlop.doubleTapMinTimeMillis
+  override val touchSlop: Float get() = slop
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewChatLayout() {
+  SimpleXTheme {
+    val chatItems = listOf(
+      ChatItem.getSampleData(
+        1, CIDirection.DirectSnd(), Clock.System.now(), "hello"
+      ),
+      ChatItem.getSampleData(
+        2, CIDirection.DirectRcv(), Clock.System.now(), "hello"
+      ),
+      ChatItem.getDeletedContentSampleData(3),
+      ChatItem.getSampleData(
+        4, CIDirection.DirectSnd(), Clock.System.now(), "hello"
+      ),
+      ChatItem.getSampleData(
+        5, CIDirection.DirectSnd(), Clock.System.now(), "hello"
+      ),
+      ChatItem.getSampleData(
+        6, CIDirection.DirectRcv(), Clock.System.now(), "hello"
+      )
+    )
+    val unreadCount = remember { mutableStateOf(chatItems.count { it.isRcvNew }) }
+    val searchValue = remember { mutableStateOf("") }
+    ChatLayout(
+      user = User.sampleData,
+      chat = Chat(
+        chatInfo = ChatInfo.Direct.sampleData,
+        chatItems = chatItems,
+        chatStats = Chat.ChatStats()
+      ),
+      unreadCount = unreadCount,
+      composeState = remember { mutableStateOf(ComposeState(useLinkPreviews = true)) },
+      composeView = {},
+      attachmentOption = remember { mutableStateOf<AttachmentOption?>(null) },
+      scope = rememberCoroutineScope(),
+      attachmentBottomSheetState = rememberModalBottomSheetState(initialValue = ModalBottomSheetValue.Hidden),
+      chatItems = chatItems,
+      searchValue,
+      useLinkPreviews = true,
+      back = {},
+      info = {},
+      openDirectChat = {},
+      loadPrevMessages = { _ -> },
+      deleteMessage = { _, _ -> },
+      receiveFile = {},
+      joinGroup = {},
+      startCall = {},
+      acceptCall = { _ -> },
+      addMembers = { _ -> },
+      markRead = { _, _ -> },
+      onSearchValueChanged = {},
+    )
+  }
+}
+
+@Preview(showBackground = true)
+@Composable
+fun PreviewGroupChatLayout() {
+  SimpleXTheme {
+    val chatItems = listOf(
+      ChatItem.getSampleData(
+        1, CIDirection.GroupSnd(), Clock.System.now(), "hello"
+      ),
+      ChatItem.getSampleData(
+        2, CIDirection.GroupRcv(GroupMember.sampleData), Clock.System.now(), "hello"
+      ),
+      ChatItem.getDeletedContentSampleData(3),
+      ChatItem.getSampleData(
+        4, CIDirection.GroupRcv(GroupMember.sampleData), Clock.System.now(), "hello"
+      ),
+      ChatItem.getSampleData(
+        5, CIDirection.GroupSnd(), Clock.System.now(), "hello"
+      ),
+      ChatItem.getSampleData(
+        6, CIDirection.GroupRcv(GroupMember.sampleData), Clock.System.now(), "hello"
+      )
+    )
+    val unreadCount = remember { mutableStateOf(chatItems.count { it.isRcvNew }) }
+    val searchValue = remember { mutableStateOf("") }
+    ChatLayout(
+      user = User.sampleData,
+      chat = Chat(
+        chatInfo = ChatInfo.Group.sampleData,
+        chatItems = chatItems,
+        chatStats = Chat.ChatStats()
+      ),
+      unreadCount = unreadCount,
+      composeState = remember { mutableStateOf(ComposeState(useLinkPreviews = true)) },
+      composeView = {},
+      attachmentOption = remember { mutableStateOf<AttachmentOption?>(null) },
+      scope = rememberCoroutineScope(),
+      attachmentBottomSheetState = rememberModalBottomSheetState(initialValue = ModalBottomSheetValue.Hidden),
+      chatItems = chatItems,
+      searchValue,
+      useLinkPreviews = true,
+      back = {},
+      info = {},
+      openDirectChat = {},
+      loadPrevMessages = { _ -> },
+      deleteMessage = { _, _ -> },
+      receiveFile = {},
+      joinGroup = {},
+      startCall = {},
+      acceptCall = { _ -> },
+      addMembers = { _ -> },
+      markRead = { _, _ -> },
+      onSearchValueChanged = {},
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/ComposeFileView.kt

@@ -0,0 +1,61 @@
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.InsertDriveFile
+import androidx.compose.material.icons.outlined.Close
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.chat.item.SentColorLight
+
+@Composable
+fun ComposeFileView(fileName: String, cancelFile: () -> Unit, cancelEnabled: Boolean) {
+  Row(
+    Modifier
+      .height(60.dp)
+      .fillMaxWidth()
+      .padding(top = 8.dp)
+      .background(SentColorLight),
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Icon(
+      Icons.Filled.InsertDriveFile,
+      stringResource(R.string.icon_descr_file),
+      Modifier
+        .padding(start = 4.dp, end = 2.dp)
+        .size(36.dp),
+      tint = if (isSystemInDarkTheme()) FileDark else FileLight
+    )
+    Text(fileName)
+    Spacer(Modifier.weight(1f))
+    if (cancelEnabled) {
+      IconButton(onClick = cancelFile, modifier = Modifier.padding(0.dp)) {
+        Icon(
+          Icons.Outlined.Close,
+          contentDescription = stringResource(R.string.icon_descr_cancel_file_preview),
+          tint = MaterialTheme.colors.primary,
+          modifier = Modifier.padding(10.dp)
+        )
+      }
+    }
+  }
+}
+
+@Preview
+@Composable
+fun PreviewComposeFileView() {
+  SimpleXTheme {
+    ComposeFileView(
+      "test.txt",
+      cancelFile = {},
+      cancelEnabled = true
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/ComposeImageView.kt

@@ -0,0 +1,47 @@
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Close
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.asImageBitmap
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.views.chat.item.SentColorLight
+import chat.simplex.app.views.helpers.base64ToBitmap
+
+@Composable
+fun ComposeImageView(image: String, cancelImage: () -> Unit, cancelEnabled: Boolean) {
+  Row(
+    Modifier
+      .fillMaxWidth()
+      .padding(top = 8.dp)
+      .background(SentColorLight),
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    val imageBitmap = base64ToBitmap(image).asImageBitmap()
+    Image(
+      imageBitmap,
+      "preview image",
+      modifier = Modifier
+        .width(80.dp)
+        .height(60.dp)
+        .padding(end = 8.dp)
+    )
+    Spacer(Modifier.weight(1f))
+    if (cancelEnabled) {
+      IconButton(onClick = cancelImage, modifier = Modifier.padding(0.dp)) {
+        Icon(
+          Icons.Outlined.Close,
+          contentDescription = stringResource(R.string.icon_descr_cancel_image_preview),
+          tint = MaterialTheme.colors.primary,
+          modifier = Modifier.padding(10.dp)
+        )
+      }
+    }
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/ComposeView.kt

@@ -0,0 +1,488 @@
+package chat.simplex.app.views.chat
+
+import ComposeFileView
+import ComposeImageView
+import android.Manifest
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.graphics.Bitmap
+import android.graphics.ImageDecoder
+import android.net.Uri
+import android.provider.MediaStore
+import android.util.Log
+import android.widget.Toast
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContract
+import androidx.annotation.CallSuper
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material.Icon
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.AttachFile
+import androidx.compose.material.icons.filled.Edit
+import androidx.compose.material.icons.outlined.Reply
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.core.content.ContextCompat
+import androidx.core.content.FileProvider
+import chat.simplex.app.*
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.views.chat.item.*
+import chat.simplex.app.views.helpers.*
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.runBlocking
+import java.io.File
+
+sealed class ComposePreview {
+  object NoPreview: ComposePreview()
+  class CLinkPreview(val linkPreview: LinkPreview?): ComposePreview()
+  class ImagePreview(val image: String): ComposePreview()
+  class FilePreview(val fileName: String): ComposePreview()
+}
+
+sealed class ComposeContextItem {
+  object NoContextItem: ComposeContextItem()
+  class QuotedItem(val chatItem: ChatItem): ComposeContextItem()
+  class EditingItem(val chatItem: ChatItem): ComposeContextItem()
+}
+
+data class ComposeState(
+  val message: String = "",
+  val preview: ComposePreview = ComposePreview.NoPreview,
+  val contextItem: ComposeContextItem = ComposeContextItem.NoContextItem,
+  val inProgress: Boolean = false,
+  val useLinkPreviews: Boolean
+) {
+  constructor(editingItem: ChatItem, useLinkPreviews: Boolean): this (
+    editingItem.content.text,
+    chatItemPreview(editingItem),
+    ComposeContextItem.EditingItem(editingItem),
+    useLinkPreviews = useLinkPreviews
+  )
+
+  val editing: Boolean
+    get() =
+      when (contextItem) {
+        is ComposeContextItem.EditingItem -> true
+        else -> false
+      }
+  val sendEnabled: () -> Boolean
+    get() = {
+      val hasContent = when (preview) {
+        is ComposePreview.ImagePreview -> true
+        is ComposePreview.FilePreview -> true
+        else -> message.isNotEmpty()
+      }
+      hasContent && !inProgress
+    }
+  val linkPreviewAllowed: Boolean
+    get() =
+      when (preview) {
+        is ComposePreview.ImagePreview -> false
+        is ComposePreview.FilePreview -> false
+        else -> useLinkPreviews
+      }
+  val linkPreview: LinkPreview?
+    get() =
+      when (preview) {
+        is ComposePreview.CLinkPreview -> preview.linkPreview
+        else -> null
+      }
+}
+
+fun chatItemPreview(chatItem: ChatItem): ComposePreview {
+  return when (val mc = chatItem.content.msgContent) {
+    is MsgContent.MCText -> ComposePreview.NoPreview
+    is MsgContent.MCLink -> ComposePreview.CLinkPreview(linkPreview = mc.preview)
+    is MsgContent.MCImage -> ComposePreview.ImagePreview(image = mc.image)
+    is MsgContent.MCFile -> {
+      val fileName = chatItem.file?.fileName ?: ""
+      ComposePreview.FilePreview(fileName)
+    }
+    else -> ComposePreview.NoPreview
+  }
+}
+
+@Composable
+fun ComposeView(
+  chatModel: ChatModel,
+  chat: Chat,
+  composeState: MutableState<ComposeState>,
+  attachmentOption: MutableState<AttachmentOption?>,
+  showChooseAttachment: () -> Unit
+) {
+  val context = LocalContext.current
+  val linkUrl = remember { mutableStateOf<String?>(null) }
+  val prevLinkUrl = remember { mutableStateOf<String?>(null) }
+  val pendingLinkUrl = remember { mutableStateOf<String?>(null) }
+  val cancelledLinks = remember { mutableSetOf<String>() }
+  val useLinkPreviews = chatModel.controller.appPrefs.privacyLinkPreviews.get()
+  val smallFont = MaterialTheme.typography.body1.copy(color = MaterialTheme.colors.onBackground)
+  val textStyle = remember { mutableStateOf(smallFont) }
+  // attachments
+  val chosenImage = remember { mutableStateOf<Bitmap?>(null) }
+  val chosenFile = remember { mutableStateOf<Uri?>(null) }
+  val photoUri = remember { mutableStateOf<Uri?>(null) }
+  val photoTmpFile = remember { mutableStateOf<File?>(null) }
+
+  class ComposeTakePicturePreview: ActivityResultContract<Void?, Bitmap?>() {
+    @CallSuper
+    override fun createIntent(context: Context, input: Void?): Intent {
+      photoTmpFile.value = File.createTempFile("image", ".bmp", SimplexApp.context.filesDir)
+      photoUri.value = FileProvider.getUriForFile(context, "${BuildConfig.APPLICATION_ID}.provider", photoTmpFile.value!!)
+      return Intent(MediaStore.ACTION_IMAGE_CAPTURE)
+        .putExtra(MediaStore.EXTRA_OUTPUT, photoUri.value)
+    }
+
+    override fun getSynchronousResult(
+      context: Context,
+      input: Void?
+    ): SynchronousResult<Bitmap?>? = null
+
+    override fun parseResult(resultCode: Int, intent: Intent?): Bitmap? {
+      val photoUriVal = photoUri.value
+      val photoTmpFileVal = photoTmpFile.value
+      return if (resultCode == Activity.RESULT_OK && photoUriVal != null && photoTmpFileVal != null) {
+        val source = ImageDecoder.createSource(SimplexApp.context.contentResolver, photoUriVal)
+        val bitmap = ImageDecoder.decodeBitmap(source)
+        photoTmpFileVal.delete()
+        bitmap
+      } else {
+        Log.e(TAG, "Getting image from camera cancelled or failed.")
+        photoTmpFile.value?.delete()
+        null
+      }
+    }
+  }
+
+  val cameraLauncher = rememberLauncherForActivityResult(contract = ComposeTakePicturePreview()) { bitmap: Bitmap? ->
+    if (bitmap != null) {
+      chosenImage.value = bitmap
+      val imagePreview = resizeImageToStrSize(bitmap, maxDataSize = 14000)
+      composeState.value = composeState.value.copy(preview = ComposePreview.ImagePreview(imagePreview))
+    }
+  }
+  val cameraPermissionLauncher = rememberPermissionLauncher { isGranted: Boolean ->
+    if (isGranted) {
+      cameraLauncher.launch(null)
+    } else {
+      Toast.makeText(context, generalGetString(R.string.toast_permission_denied), Toast.LENGTH_SHORT).show()
+    }
+  }
+  val galleryLauncher = rememberGetContentLauncher { uri: Uri? ->
+    if (uri != null) {
+      val source = ImageDecoder.createSource(context.contentResolver, uri)
+      val bitmap = ImageDecoder.decodeBitmap(source)
+      chosenImage.value = bitmap
+      val imagePreview = resizeImageToStrSize(bitmap, maxDataSize = 14000)
+      composeState.value = composeState.value.copy(preview = ComposePreview.ImagePreview(imagePreview))
+    }
+  }
+  val filesLauncher = rememberGetContentLauncher { uri: Uri? ->
+    if (uri != null) {
+      val fileSize = getFileSize(context, uri)
+      if (fileSize != null && fileSize <= MAX_FILE_SIZE) {
+        val fileName = getFileName(SimplexApp.context, uri)
+        if (fileName != null) {
+          chosenFile.value = uri
+          composeState.value = composeState.value.copy(preview = ComposePreview.FilePreview(fileName))
+        }
+      } else {
+        AlertManager.shared.showAlertMsg(
+          generalGetString(R.string.large_file),
+          String.format(generalGetString(R.string.maximum_supported_file_size), formatBytes(MAX_FILE_SIZE))
+        )
+      }
+    }
+  }
+
+  LaunchedEffect(attachmentOption.value) {
+    when (attachmentOption.value) {
+      AttachmentOption.TakePhoto -> {
+        when (PackageManager.PERMISSION_GRANTED) {
+          ContextCompat.checkSelfPermission(context, Manifest.permission.CAMERA) -> {
+            cameraLauncher.launch(null)
+          }
+          else -> {
+            cameraPermissionLauncher.launch(Manifest.permission.CAMERA)
+          }
+        }
+        attachmentOption.value = null
+      }
+      AttachmentOption.PickImage -> {
+        galleryLauncher.launch("image/*")
+        attachmentOption.value = null
+      }
+      AttachmentOption.PickFile -> {
+        filesLauncher.launch("*/*")
+        attachmentOption.value = null
+      }
+      else -> {}
+    }
+  }
+
+  fun isSimplexLink(link: String): Boolean =
+    link.startsWith("https://simplex.chat", true) || link.startsWith("http://simplex.chat", true)
+
+  fun parseMessage(msg: String): String? {
+    val parsedMsg = runBlocking { chatModel.controller.apiParseMarkdown(msg) }
+    val link = parsedMsg?.firstOrNull { ft -> ft.format is Format.Uri && !cancelledLinks.contains(ft.text) && !isSimplexLink(ft.text) }
+    return link?.text
+  }
+
+  fun loadLinkPreview(url: String, wait: Long? = null) {
+    if (pendingLinkUrl.value == url) {
+      composeState.value = composeState.value.copy(preview = ComposePreview.CLinkPreview(null))
+      withApi {
+        if (wait != null) delay(wait)
+        val lp = getLinkPreview(url)
+        if (lp != null && pendingLinkUrl.value == url) {
+          composeState.value = composeState.value.copy(preview = ComposePreview.CLinkPreview(lp))
+          pendingLinkUrl.value = null
+        }
+      }
+    }
+  }
+
+  fun showLinkPreview(s: String) {
+    prevLinkUrl.value = linkUrl.value
+    linkUrl.value = parseMessage(s)
+    val url = linkUrl.value
+    if (url != null) {
+      if (url != composeState.value.linkPreview?.uri && url != pendingLinkUrl.value) {
+        pendingLinkUrl.value = url
+        loadLinkPreview(url, wait = if (prevLinkUrl.value == url) null else 1500L)
+      }
+    } else {
+      composeState.value = composeState.value.copy(preview = ComposePreview.NoPreview)
+    }
+  }
+
+  fun resetLinkPreview() {
+    linkUrl.value = null
+    prevLinkUrl.value = null
+    pendingLinkUrl.value = null
+    cancelledLinks.clear()
+  }
+
+  fun checkLinkPreview(): MsgContent {
+    val cs = composeState.value
+    return when (val composePreview = cs.preview) {
+      is ComposePreview.CLinkPreview -> {
+        val url = parseMessage(cs.message)
+        val lp = composePreview.linkPreview
+        if (lp != null && url == lp.uri) {
+          MsgContent.MCLink(cs.message, preview = lp)
+        } else {
+          MsgContent.MCText(cs.message)
+        }
+      }
+      else -> MsgContent.MCText(cs.message)
+    }
+  }
+
+  fun updateMsgContent(msgContent: MsgContent): MsgContent {
+    val cs = composeState.value
+    return when (msgContent) {
+      is MsgContent.MCText -> checkLinkPreview()
+      is MsgContent.MCLink -> checkLinkPreview()
+      is MsgContent.MCImage -> MsgContent.MCImage(cs.message, image = msgContent.image)
+      is MsgContent.MCFile -> MsgContent.MCFile(cs.message)
+      is MsgContent.MCUnknown -> MsgContent.MCUnknown(type = msgContent.type, text = cs.message, json = msgContent.json)
+    }
+  }
+
+  fun clearState() {
+    composeState.value = ComposeState(useLinkPreviews = useLinkPreviews)
+    textStyle.value = smallFont
+    chosenImage.value = null
+    chosenFile.value = null
+    linkUrl.value = null
+    prevLinkUrl.value = null
+    pendingLinkUrl.value = null
+    cancelledLinks.clear()
+  }
+
+  fun sendMessage() {
+    composeState.value = composeState.value.copy(inProgress = true)
+    val cInfo = chat.chatInfo
+    val cs = composeState.value
+    when (val contextItem = cs.contextItem) {
+      is ComposeContextItem.EditingItem -> {
+        val ei = contextItem.chatItem
+        val oldMsgContent = ei.content.msgContent
+        if (oldMsgContent != null) {
+          withApi {
+            val updatedItem = chatModel.controller.apiUpdateChatItem(
+              type = cInfo.chatType,
+              id = cInfo.apiId,
+              itemId = ei.meta.itemId,
+              mc = updateMsgContent(oldMsgContent)
+            )
+            if (updatedItem != null) chatModel.upsertChatItem(cInfo, updatedItem.chatItem)
+            clearState()
+          }
+        }
+      }
+      else -> {
+        var mc: MsgContent? = null
+        var file: String? = null
+        when (val preview = cs.preview) {
+          ComposePreview.NoPreview -> mc = MsgContent.MCText(cs.message)
+          is ComposePreview.CLinkPreview -> mc = checkLinkPreview()
+          is ComposePreview.ImagePreview -> {
+            val chosenImageVal = chosenImage.value
+            if (chosenImageVal != null) {
+              file = saveImage(context, chosenImageVal)
+              if (file != null) {
+                mc = MsgContent.MCImage(cs.message, preview.image)
+              }
+            }
+          }
+          is ComposePreview.FilePreview -> {
+            val chosenFileVal = chosenFile.value
+            if (chosenFileVal != null) {
+              file = saveFileFromUri(context, chosenFileVal)
+              if (file != null) {
+                mc = MsgContent.MCFile(cs.message)
+              }
+            }
+          }
+        }
+        val quotedItemId: Long? = when (contextItem) {
+          is ComposeContextItem.QuotedItem -> contextItem.chatItem.id
+          else -> null
+        }
+
+        if (mc != null) {
+          withApi {
+            val aChatItem = chatModel.controller.apiSendMessage(
+              type = cInfo.chatType,
+              id = cInfo.apiId,
+              file = file,
+              quotedItemId = quotedItemId,
+              mc = mc
+            )
+            if (aChatItem != null) chatModel.addChatItem(cInfo, aChatItem.chatItem)
+            clearState()
+          }
+        } else {
+          clearState()
+        }
+      }
+    }
+  }
+
+  fun onMessageChange(s: String) {
+    composeState.value = composeState.value.copy(message = s)
+    if (isShortEmoji(s)) {
+      textStyle.value = if (s.codePoints().count() < 4) largeEmojiFont else mediumEmojiFont
+    } else {
+      textStyle.value = smallFont
+      if (composeState.value.linkPreviewAllowed) {
+        if (s.isNotEmpty()) showLinkPreview(s)
+        else resetLinkPreview()
+      }
+    }
+  }
+
+  fun cancelLinkPreview() {
+    val uri = composeState.value.linkPreview?.uri
+    if (uri != null) {
+      cancelledLinks.add(uri)
+    }
+    pendingLinkUrl.value = null
+    composeState.value = composeState.value.copy(preview = ComposePreview.NoPreview)
+  }
+
+  fun cancelImage() {
+    composeState.value = composeState.value.copy(preview = ComposePreview.NoPreview)
+    chosenImage.value = null
+  }
+
+  fun cancelFile() {
+    composeState.value = composeState.value.copy(preview = ComposePreview.NoPreview)
+    chosenFile.value = null
+  }
+
+  @Composable
+  fun previewView() {
+    when (val preview = composeState.value.preview) {
+      ComposePreview.NoPreview -> {}
+      is ComposePreview.CLinkPreview -> ComposeLinkView(preview.linkPreview, ::cancelLinkPreview)
+      is ComposePreview.ImagePreview -> ComposeImageView(
+        preview.image,
+        ::cancelImage,
+        cancelEnabled = !composeState.value.editing
+      )
+      is ComposePreview.FilePreview -> ComposeFileView(
+        preview.fileName,
+        ::cancelFile,
+        cancelEnabled = !composeState.value.editing
+      )
+    }
+  }
+
+  @Composable
+  fun contextItemView() {
+    when (val contextItem = composeState.value.contextItem) {
+      ComposeContextItem.NoContextItem -> {}
+      is ComposeContextItem.QuotedItem -> ContextItemView(contextItem.chatItem, Icons.Outlined.Reply) {
+        composeState.value = composeState.value.copy(contextItem = ComposeContextItem.NoContextItem)
+      }
+      is ComposeContextItem.EditingItem -> ContextItemView(contextItem.chatItem, Icons.Filled.Edit) {
+        clearState()
+      }
+    }
+  }
+
+  Column {
+    contextItemView()
+    when {
+      composeState.value.editing && composeState.value.preview is ComposePreview.FilePreview -> {}
+      else -> previewView()
+    }
+    Row(
+      modifier = Modifier.padding(start = 4.dp, end = 8.dp),
+      verticalAlignment = Alignment.Bottom,
+      horizontalArrangement = Arrangement.spacedBy(2.dp)
+    ) {
+      val attachEnabled = !composeState.value.editing
+      Box(Modifier.padding(bottom = 12.dp)) {
+        Icon(
+          Icons.Filled.AttachFile,
+          contentDescription = stringResource(R.string.attach),
+          tint = if (attachEnabled) MaterialTheme.colors.primary else Color.Gray,
+          modifier = Modifier
+            .size(28.dp)
+            .clip(CircleShape)
+            .clickable {
+              if (attachEnabled) {
+                showChooseAttachment()
+              }
+            }
+        )
+      }
+      SendMsgView(
+        composeState,
+        sendMessage = {
+          sendMessage()
+          resetLinkPreview()
+        },
+        ::onMessageChange,
+        textStyle
+      )
+    }
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/ContextItemView.kt

@@ -0,0 +1,79 @@
+package chat.simplex.app.views.chat
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Edit
+import androidx.compose.material.icons.outlined.Close
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.model.CIDirection
+import chat.simplex.app.model.ChatItem
+import chat.simplex.app.ui.theme.HighOrLowlight
+import chat.simplex.app.ui.theme.SimpleXTheme
+import chat.simplex.app.views.chat.item.*
+import kotlinx.datetime.Clock
+
+@Composable
+fun ContextItemView(
+  contextItem: ChatItem,
+  contextIcon: ImageVector,
+  cancelContextItem: () -> Unit
+) {
+  val sent = contextItem.chatDir.sent
+  Row(
+    Modifier
+      .padding(top = 8.dp)
+      .background(if (sent) SentColorLight else ReceivedColorLight),
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Row(
+      Modifier
+        .padding(vertical = 12.dp)
+        .fillMaxWidth()
+        .weight(1F),
+      verticalAlignment = Alignment.CenterVertically
+    ) {
+      Icon(
+        contextIcon,
+        modifier = Modifier
+          .padding(horizontal = 8.dp)
+          .height(20.dp)
+          .width(20.dp),
+        contentDescription = stringResource(R.string.icon_descr_context),
+        tint = HighOrLowlight,
+      )
+      MarkdownText(
+        contextItem.text, contextItem.formattedText,
+        sender = contextItem.memberDisplayName, senderBold = true, maxLines = 3
+      )
+    }
+    IconButton(onClick = cancelContextItem) {
+      Icon(
+        Icons.Outlined.Close,
+        contentDescription = stringResource(R.string.cancel_verb),
+        tint = MaterialTheme.colors.primary,
+        modifier = Modifier.padding(10.dp)
+      )
+    }
+  }
+}
+
+@Preview
+@Composable
+fun PreviewContextItemView() {
+  SimpleXTheme {
+    ContextItemView(
+      contextItem = ChatItem.getSampleData(1, CIDirection.DirectRcv(), Clock.System.now(), "hello"),
+      contextIcon = Icons.Filled.Edit,
+      cancelContextItem = {}
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/SendMsgView.kt

@@ -0,0 +1,176 @@
+package chat.simplex.app.views.chat
+
+import android.content.res.Configuration
+import androidx.compose.foundation.*
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.BasicTextField
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Check
+import androidx.compose.material.icons.outlined.ArrowUpward
+import androidx.compose.runtime.*
+import androidx.compose.ui.*
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.SolidColor
+import androidx.compose.ui.platform.LocalSoftwareKeyboardController
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.model.ChatItem
+import chat.simplex.app.ui.theme.HighOrLowlight
+import chat.simplex.app.ui.theme.SimpleXTheme
+import kotlinx.coroutines.delay
+
+@OptIn(ExperimentalComposeUiApi::class)
+@Composable
+fun SendMsgView(
+  composeState: MutableState<ComposeState>,
+  sendMessage: () -> Unit,
+  onMessageChange: (String) -> Unit,
+  textStyle: MutableState<TextStyle>
+) {
+  val cs = composeState.value
+  val focusRequester = remember { FocusRequester() }
+  val keyboard = LocalSoftwareKeyboardController.current
+  LaunchedEffect(cs.contextItem) {
+    if (cs.contextItem !is ComposeContextItem.QuotedItem) return@LaunchedEffect
+    // In replying state
+    focusRequester.requestFocus()
+    delay(50)
+    keyboard?.show()
+  }
+
+  BasicTextField(
+    value = cs.message,
+    onValueChange = onMessageChange,
+    textStyle = textStyle.value,
+    maxLines = 16,
+    keyboardOptions = KeyboardOptions.Default.copy(
+      capitalization = KeyboardCapitalization.Sentences,
+      autoCorrect = true
+    ),
+    modifier = Modifier.padding(vertical = 8.dp).focusRequester(focusRequester),
+    cursorBrush = SolidColor(HighOrLowlight),
+    decorationBox = { innerTextField ->
+      Surface(
+        shape = RoundedCornerShape(18.dp),
+        border = BorderStroke(1.dp, MaterialTheme.colors.secondary)
+      ) {
+        Row(
+          Modifier.background(MaterialTheme.colors.background),
+          verticalAlignment = Alignment.Bottom
+        ) {
+          Box(
+            Modifier
+              .weight(1f)
+              .padding(horizontal = 12.dp)
+              .padding(top = 5.dp)
+              .padding(bottom = 7.dp)
+          ) {
+            innerTextField()
+          }
+          val icon = if (cs.editing) Icons.Filled.Check else Icons.Outlined.ArrowUpward
+          val color = if (cs.sendEnabled()) MaterialTheme.colors.primary else HighOrLowlight
+          if (cs.inProgress
+            && (cs.preview is ComposePreview.ImagePreview || cs.preview is ComposePreview.FilePreview)
+          ) {
+            CircularProgressIndicator(
+              Modifier
+                .size(36.dp)
+                .padding(4.dp),
+              color = HighOrLowlight,
+              strokeWidth = 3.dp
+            )
+          } else {
+            Icon(
+              icon,
+              stringResource(R.string.icon_descr_send_message),
+              tint = Color.White,
+              modifier = Modifier
+                .size(36.dp)
+                .padding(4.dp)
+                .clip(CircleShape)
+                .background(color)
+                .clickable {
+                  if (cs.sendEnabled()) {
+                    sendMessage()
+                  }
+                }
+            )
+          }
+        }
+      }
+    }
+  )
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewSendMsgView() {
+  val smallFont = MaterialTheme.typography.body1.copy(color = MaterialTheme.colors.onBackground)
+  val textStyle = remember { mutableStateOf(smallFont) }
+  SimpleXTheme {
+    SendMsgView(
+      composeState = remember { mutableStateOf(ComposeState(useLinkPreviews = true)) },
+      sendMessage = {},
+      onMessageChange = { _ -> },
+      textStyle = textStyle
+    )
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewSendMsgViewEditing() {
+  val smallFont = MaterialTheme.typography.body1.copy(color = MaterialTheme.colors.onBackground)
+  val textStyle = remember { mutableStateOf(smallFont) }
+  val composeStateEditing = ComposeState(editingItem = ChatItem.getSampleData(), useLinkPreviews = true)
+  SimpleXTheme {
+    SendMsgView(
+      composeState = remember { mutableStateOf(composeStateEditing) },
+      sendMessage = {},
+      onMessageChange = { _ -> },
+      textStyle = textStyle
+    )
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewSendMsgViewInProgress() {
+  val smallFont = MaterialTheme.typography.body1.copy(color = MaterialTheme.colors.onBackground)
+  val textStyle = remember { mutableStateOf(smallFont) }
+  val composeStateInProgress = ComposeState(preview = ComposePreview.FilePreview("test.txt"), inProgress = true, useLinkPreviews = true)
+  SimpleXTheme {
+    SendMsgView(
+      composeState = remember { mutableStateOf(composeStateInProgress) },
+      sendMessage = {},
+      onMessageChange = { _ -> },
+      textStyle = textStyle
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/group/AddGroupMembersView.kt

@@ -0,0 +1,320 @@
+package chat.simplex.app.views.chat.group
+
+import SectionCustomFooter
+import SectionDivider
+import SectionItemView
+import SectionSpacer
+import SectionView
+import androidx.activity.compose.BackHandler
+import androidx.compose.foundation.*
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.CheckCircle
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.*
+import androidx.compose.runtime.snapshots.SnapshotStateList
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.chat.ChatInfoToolbarTitle
+import chat.simplex.app.views.helpers.*
+
+@Composable
+fun AddGroupMembersView(groupInfo: GroupInfo, chatModel: ChatModel, close: () -> Unit) {
+  val selectedContacts = remember { mutableStateListOf<Long>() }
+  val selectedRole = remember { mutableStateOf(GroupMemberRole.Admin) }
+
+  BackHandler(onBack = close)
+  AddGroupMembersLayout(
+    groupInfo = groupInfo,
+    contactsToAdd = getContactsToAdd(chatModel),
+    selectedContacts = selectedContacts,
+    selectedRole = selectedRole,
+    inviteMembers = {
+      withApi {
+        selectedContacts.forEach {
+          val member = chatModel.controller.apiAddMember(groupInfo.groupId, it, selectedRole.value)
+          if (member != null) {
+            chatModel.upsertGroupMember(groupInfo, member)
+          }
+        }
+        close.invoke()
+      }
+    },
+    clearSelection = { selectedContacts.clear() },
+    addContact = { contactId -> if (contactId !in selectedContacts) selectedContacts.add(contactId) },
+    removeContact = { contactId -> selectedContacts.removeIf { it == contactId } },
+  )
+}
+
+fun getContactsToAdd(chatModel: ChatModel): List<Contact> {
+  val memberContactIds = chatModel.groupMembers
+    .filter { it.memberCurrent }
+    .mapNotNull { it.memberContactId }
+  return chatModel.chats
+    .asSequence()
+    .map { it.chatInfo }
+    .filterIsInstance<ChatInfo.Direct>()
+    .map { it.contact }
+    .filter { it.contactId !in memberContactIds }
+    .sortedBy { it.displayName.lowercase() }
+    .toList()
+}
+
+@Composable
+fun AddGroupMembersLayout(
+  groupInfo: GroupInfo,
+  contactsToAdd: List<Contact>,
+  selectedContacts: SnapshotStateList<Long>,
+  selectedRole: MutableState<GroupMemberRole>,
+  inviteMembers: () -> Unit,
+  clearSelection: () -> Unit,
+  addContact: (Long) -> Unit,
+  removeContact: (Long) -> Unit,
+) {
+  Column(
+    Modifier
+      .fillMaxWidth()
+      .verticalScroll(rememberScrollState()),
+    horizontalAlignment = Alignment.Start,
+  ) {
+    Row(
+      Modifier.fillMaxWidth(),
+      horizontalArrangement = Arrangement.Center
+    ) {
+      ChatInfoToolbarTitle(
+        ChatInfo.Group(groupInfo),
+        imageSize = 60.dp,
+        iconColor = if (isSystemInDarkTheme()) GroupDark else SettingsSecondaryLight
+      )
+    }
+    SectionSpacer()
+
+    if (contactsToAdd.isEmpty()) {
+      Row(
+        Modifier.fillMaxWidth(),
+        horizontalArrangement = Arrangement.Center
+      ) {
+        Text(
+          stringResource(R.string.no_contacts_to_add),
+          Modifier.padding(),
+          color = HighOrLowlight
+        )
+      }
+    } else {
+      SectionView {
+        SectionItemView {
+          RoleSelectionRow(groupInfo, selectedRole)
+        }
+        SectionDivider()
+        SectionItemView {
+          InviteMembersButton(inviteMembers, disabled = selectedContacts.isEmpty())
+        }
+      }
+      SectionCustomFooter {
+        InviteSectionFooter(selectedContactsCount = selectedContacts.count(), clearSelection)
+      }
+      SectionSpacer()
+
+      SectionView {
+        ContactList(contacts = contactsToAdd, selectedContacts, addContact, removeContact)
+      }
+      SectionSpacer()
+    }
+  }
+}
+
+@Composable
+fun RoleSelectionRow(groupInfo: GroupInfo, selectedRole: MutableState<GroupMemberRole>) {
+  Row(
+    Modifier.fillMaxWidth(),
+    verticalAlignment = Alignment.CenterVertically,
+    horizontalArrangement = Arrangement.SpaceBetween
+  ) {
+    Text(stringResource(R.string.new_member_role))
+    RoleDropdownMenu(groupInfo, selectedRole)
+  }
+}
+
+@Composable
+fun RoleDropdownMenu(groupInfo: GroupInfo, selectedRole: MutableState<GroupMemberRole>) {
+  val options = GroupMemberRole.values()
+    .filter { it <= groupInfo.membership.memberRole }
+  var expanded by remember { mutableStateOf(false) }
+
+  ExposedDropdownMenuBox(
+    expanded = expanded,
+    onExpandedChange = {
+      expanded = !expanded
+    }
+  ) {
+    Row(
+      Modifier.fillMaxWidth(0.7f),
+      verticalAlignment = Alignment.CenterVertically,
+      horizontalArrangement = Arrangement.End
+    ) {
+      Text(
+        selectedRole.value.text,
+        maxLines = 1,
+        overflow = TextOverflow.Ellipsis,
+        color = HighOrLowlight
+      )
+      Spacer(Modifier.size(4.dp))
+      Icon(
+        if (!expanded) Icons.Outlined.ExpandMore else Icons.Outlined.ExpandLess,
+        generalGetString(R.string.invite_to_group_button),
+        modifier = Modifier.padding(start = 8.dp),
+        tint = HighOrLowlight
+      )
+    }
+    ExposedDropdownMenu(
+      expanded = expanded,
+      onDismissRequest = {
+        expanded = false
+      }
+    ) {
+      options.forEach { selectionOption ->
+        DropdownMenuItem(
+          onClick = {
+            selectedRole.value = selectionOption
+            expanded = false
+          }
+        ) {
+          Text(
+            selectionOption.text,
+            maxLines = 1,
+            overflow = TextOverflow.Ellipsis,
+          )
+        }
+      }
+    }
+  }
+}
+
+@Composable
+fun InviteMembersButton(inviteMembers: () -> Unit, disabled: Boolean) {
+  val modifier = if (disabled) Modifier else Modifier.clickable { inviteMembers() }
+  Row(
+    modifier.fillMaxSize(),
+    horizontalArrangement = Arrangement.End,
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    val color = if (disabled) HighOrLowlight else MaterialTheme.colors.primary
+    Text(stringResource(R.string.invite_to_group_button), color = color)
+    Spacer(Modifier.size(8.dp))
+    Icon(
+      Icons.Outlined.Check,
+      stringResource(R.string.invite_to_group_button),
+      tint = color
+    )
+  }
+}
+
+@Composable
+fun InviteSectionFooter(selectedContactsCount: Int, clearSelection: () -> Unit) {
+  Row(
+    Modifier.fillMaxWidth(),
+    horizontalArrangement = if (selectedContactsCount >= 1) Arrangement.SpaceBetween else Arrangement.End,
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    if (selectedContactsCount >= 1) {
+      Box(
+        Modifier.clickable { clearSelection() }
+      ) {
+        Text(
+          stringResource(R.string.clear_contacts_selection_button),
+          color = MaterialTheme.colors.primary,
+          fontSize = 12.sp
+        )
+      }
+
+      Text(
+        String.format(generalGetString(R.string.num_contacts_selected), selectedContactsCount),
+        color = HighOrLowlight,
+        fontSize = 12.sp
+      )
+    } else {
+      Text(
+        stringResource(R.string.no_contacts_selected),
+        color = HighOrLowlight,
+        fontSize = 12.sp
+      )
+    }
+  }
+}
+
+@Composable
+fun ContactList(
+  contacts: List<Contact>,
+  selectedContacts: SnapshotStateList<Long>,
+  addContact: (Long) -> Unit,
+  removeContact: (Long) -> Unit
+) {
+  Column {
+    contacts.forEachIndexed { index, contact ->
+      SectionItemView {
+        ContactCheckRow(
+          contact, addContact, removeContact,
+          checked = selectedContacts.contains(contact.apiId)
+        )
+      }
+      if (index < contacts.lastIndex) {
+        SectionDivider()
+      }
+    }
+  }
+}
+
+@Composable
+fun ContactCheckRow(
+  contact: Contact,
+  addContact: (Long) -> Unit,
+  removeContact: (Long) -> Unit,
+  checked: Boolean
+) {
+  Row(
+    Modifier
+      .fillMaxSize()
+      .clickable { if (!checked) addContact(contact.apiId) else removeContact(contact.apiId) },
+    horizontalArrangement = Arrangement.SpaceBetween,
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Row(
+      verticalAlignment = Alignment.CenterVertically,
+      horizontalArrangement = Arrangement.spacedBy(4.dp)
+    ) {
+      ProfileImage(size = 36.dp, contact.image)
+      Text(contact.chatViewName, maxLines = 1, overflow = TextOverflow.Ellipsis)
+    }
+    Icon(
+      if (checked) Icons.Filled.CheckCircle else Icons.Outlined.Circle,
+      contentDescription = stringResource(R.string.icon_descr_contact_checked),
+      tint = if (checked) MaterialTheme.colors.primary else HighOrLowlight
+    )
+  }
+}
+
+@Preview
+@Composable
+fun PreviewAddGroupMembersLayout() {
+  SimpleXTheme {
+    AddGroupMembersLayout(
+      groupInfo = GroupInfo.sampleData,
+      contactsToAdd = listOf(Contact.sampleData, Contact.sampleData, Contact.sampleData),
+      selectedContacts = remember { mutableStateListOf() },
+      selectedRole = remember { mutableStateOf(GroupMemberRole.Admin) },
+      inviteMembers = {},
+      clearSelection = {},
+      addContact = {},
+      removeContact = {}
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/group/GroupChatInfoView.kt

@@ -0,0 +1,328 @@
+package chat.simplex.app.views.chat.group
+
+import InfoRow
+import SectionDivider
+import SectionItemView
+import SectionSpacer
+import SectionView
+import androidx.activity.compose.BackHandler
+import androidx.compose.foundation.*
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.chat.*
+import chat.simplex.app.views.chatlist.setGroupMembers
+import chat.simplex.app.views.helpers.*
+
+@Composable
+fun GroupChatInfoView(chatModel: ChatModel, close: () -> Unit) {
+  BackHandler(onBack = close)
+  val chat = chatModel.chats.firstOrNull { it.id == chatModel.chatId.value }
+  val developerTools = chatModel.controller.appPrefs.developerTools.get()
+  if (chat != null && chat.chatInfo is ChatInfo.Group) {
+    val groupInfo = chat.chatInfo.groupInfo
+    GroupChatInfoLayout(
+      chat,
+      groupInfo,
+      members = chatModel.groupMembers
+        .filter { it.memberStatus != GroupMemberStatus.MemLeft && it.memberStatus != GroupMemberStatus.MemRemoved }
+        .sortedBy { it.displayName.lowercase() },
+      developerTools,
+      addMembers = {
+        withApi {
+          setGroupMembers(groupInfo, chatModel)
+          ModalManager.shared.showCustomModal { close ->
+            ModalView(
+              close = close, modifier = Modifier,
+              background = if (isSystemInDarkTheme()) MaterialTheme.colors.background else SettingsBackgroundLight
+            ) {
+              AddGroupMembersView(groupInfo, chatModel, close)
+            }
+          }
+        }
+      },
+      showMemberInfo = { member ->
+        withApi {
+          val connStats = chatModel.controller.apiGroupMemberInfo(groupInfo.groupId, member.groupMemberId)
+          ModalManager.shared.showCustomModal { close ->
+            ModalView(
+              close = close, modifier = Modifier,
+              background = if (isSystemInDarkTheme()) MaterialTheme.colors.background else SettingsBackgroundLight
+            ) {
+              GroupMemberInfoView(groupInfo, member, connStats, chatModel, close)
+            }
+          }
+        }
+      },
+      editGroupProfile = {
+        ModalManager.shared.showCustomModal { close -> GroupProfileView(groupInfo, chatModel, close) }
+      },
+      deleteGroup = { deleteGroupDialog(chat.chatInfo, chatModel, close) },
+      clearChat = { clearChatDialog(chat.chatInfo, chatModel, close) },
+      leaveGroup = { leaveGroupDialog(groupInfo, chatModel, close) }
+    )
+  }
+}
+
+fun deleteGroupDialog(chatInfo: ChatInfo, chatModel: ChatModel, close: (() -> Unit)? = null) {
+  AlertManager.shared.showAlertMsg(
+    title = generalGetString(R.string.delete_group_question),
+    text = generalGetString(R.string.delete_group_for_all_members_cannot_undo_warning),
+    confirmText = generalGetString(R.string.delete_verb),
+    onConfirm = {
+      withApi {
+        val r = chatModel.controller.apiDeleteChat(chatInfo.chatType, chatInfo.apiId)
+        if (r) {
+          chatModel.removeChat(chatInfo.id)
+          chatModel.chatId.value = null
+          chatModel.controller.ntfManager.cancelNotificationsForChat(chatInfo.id)
+          close?.invoke()
+        }
+      }
+    }
+  )
+}
+
+fun leaveGroupDialog(groupInfo: GroupInfo, chatModel: ChatModel, close: (() -> Unit)? = null) {
+  AlertManager.shared.showAlertMsg(
+    title = generalGetString(R.string.leave_group_question),
+    text = generalGetString(R.string.you_will_stop_receiving_messages_from_this_group_chat_history_will_be_preserved),
+    confirmText = generalGetString(R.string.leave_group_button),
+    onConfirm = {
+      withApi {
+        chatModel.controller.leaveGroup(groupInfo.groupId)
+        close?.invoke()
+      }
+    }
+  )
+}
+
+@Composable
+fun GroupChatInfoLayout(
+  chat: Chat,
+  groupInfo: GroupInfo,
+  members: List<GroupMember>,
+  developerTools: Boolean,
+  addMembers: () -> Unit,
+  showMemberInfo: (GroupMember) -> Unit,
+  editGroupProfile: () -> Unit,
+  deleteGroup: () -> Unit,
+  clearChat: () -> Unit,
+  leaveGroup: () -> Unit,
+) {
+  Column(
+    Modifier
+      .fillMaxWidth()
+      .verticalScroll(rememberScrollState()),
+    horizontalAlignment = Alignment.Start
+  ) {
+    Row(
+      Modifier.fillMaxWidth(),
+      horizontalArrangement = Arrangement.Center
+    ) {
+      ChatInfoHeader(chat.chatInfo)
+    }
+    SectionSpacer()
+
+    SectionView(title = String.format(generalGetString(R.string.group_info_section_title_num_members), members.count() + 1)) {
+      if (groupInfo.canAddMembers) {
+        SectionItemView {
+          AddMembersButton(addMembers)
+        }
+        SectionDivider()
+      }
+      SectionItemView(height = 50.dp) {
+        MemberRow(groupInfo.membership, user = true)
+      }
+      if (members.isNotEmpty()) {
+        SectionDivider()
+      }
+      MembersList(members, showMemberInfo)
+    }
+    SectionSpacer()
+
+    SectionView {
+      if (groupInfo.canEdit) {
+        SectionItemView {
+          EditGroupProfileButton(editGroupProfile)
+        }
+        SectionDivider()
+      }
+      SectionItemView {
+        ClearChatButton(clearChat)
+      }
+      if (groupInfo.canDelete) {
+        SectionDivider()
+        SectionItemView {
+          DeleteGroupButton(deleteGroup)
+        }
+      }
+      if (groupInfo.membership.memberCurrent) {
+        SectionDivider()
+        SectionItemView {
+          LeaveGroupButton(leaveGroup)
+        }
+      }
+    }
+    SectionSpacer()
+
+    if (developerTools) {
+      SectionView(title = stringResource(R.string.section_title_for_console)) {
+        InfoRow(stringResource(R.string.info_row_local_name), groupInfo.localDisplayName)
+        SectionDivider()
+        InfoRow(stringResource(R.string.info_row_database_id), groupInfo.apiId.toString())
+      }
+      SectionSpacer()
+    }
+  }
+}
+
+@Composable
+fun AddMembersButton(addMembers: () -> Unit) {
+  Row(
+    Modifier
+      .fillMaxSize()
+      .clickable { addMembers() },
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Icon(
+      Icons.Outlined.Add,
+      stringResource(R.string.button_add_members),
+      tint = MaterialTheme.colors.primary
+    )
+    Spacer(Modifier.size(8.dp))
+    Text(stringResource(R.string.button_add_members), color = MaterialTheme.colors.primary)
+  }
+}
+
+@Composable
+fun MembersList(members: List<GroupMember>, showMemberInfo: (GroupMember) -> Unit) {
+  Column {
+    members.forEachIndexed { index, member ->
+      SectionItemView(height = 50.dp) {
+        MemberRow(member, showMemberInfo)
+      }
+      if (index < members.lastIndex) {
+        SectionDivider()
+      }
+    }
+  }
+}
+
+@Composable
+fun MemberRow(member: GroupMember, showMemberInfo: ((GroupMember) -> Unit)? = null, user: Boolean = false) {
+  val modifier = if (showMemberInfo != null) Modifier.clickable { showMemberInfo(member) } else Modifier
+  Row(
+    modifier.fillMaxSize(),
+    horizontalArrangement = Arrangement.SpaceBetween,
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Row(
+      verticalAlignment = Alignment.CenterVertically,
+      horizontalArrangement = Arrangement.spacedBy(4.dp)
+    ) {
+      ProfileImage(size = 46.dp, member.image)
+      Column {
+        Text(member.chatViewName, maxLines = 1, overflow = TextOverflow.Ellipsis)
+        val s = member.memberStatus.shortText
+        val statusDescr = if (user) String.format(generalGetString(R.string.group_info_member_you), s) else s
+        Text(
+          statusDescr,
+          color = HighOrLowlight,
+          fontSize = 12.sp,
+          maxLines = 1,
+          overflow = TextOverflow.Ellipsis
+        )
+      }
+    }
+    val role = member.memberRole
+    if (role == GroupMemberRole.Owner || role == GroupMemberRole.Admin) {
+      Text(role.text, color = HighOrLowlight)
+    }
+  }
+}
+
+@Composable
+fun EditGroupProfileButton(editGroupProfile: () -> Unit) {
+  Row(
+    Modifier
+      .fillMaxSize()
+      .clickable { editGroupProfile() },
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Icon(
+      Icons.Outlined.Edit,
+      stringResource(R.string.button_edit_group_profile),
+      tint = MaterialTheme.colors.primary
+    )
+    Spacer(Modifier.size(8.dp))
+    Text(stringResource(R.string.button_edit_group_profile), color = MaterialTheme.colors.primary)
+  }
+}
+
+@Composable
+fun LeaveGroupButton(leaveGroup: () -> Unit) {
+  Row(
+    Modifier
+      .fillMaxSize()
+      .clickable { leaveGroup() },
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Icon(
+      Icons.Outlined.Logout,
+      stringResource(R.string.button_leave_group),
+      tint = Color.Red
+    )
+    Spacer(Modifier.size(8.dp))
+    Text(stringResource(R.string.button_leave_group), color = Color.Red)
+  }
+}
+
+@Composable
+fun DeleteGroupButton(deleteGroup: () -> Unit) {
+  Row(
+    Modifier
+      .fillMaxSize()
+      .clickable { deleteGroup() },
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Icon(
+      Icons.Outlined.Delete,
+      stringResource(R.string.button_delete_group),
+      tint = Color.Red
+    )
+    Spacer(Modifier.size(8.dp))
+    Text(stringResource(R.string.button_delete_group), color = Color.Red)
+  }
+}
+
+@Preview
+@Composable
+fun PreviewGroupChatInfoLayout() {
+  SimpleXTheme {
+    GroupChatInfoLayout(
+      chat = Chat(
+        chatInfo = ChatInfo.Direct.sampleData,
+        chatItems = arrayListOf(),
+        serverInfo = Chat.ServerInfo(Chat.NetworkStatus.Error("agent BROKER TIMEOUT"))
+      ),
+      groupInfo = GroupInfo.sampleData,
+      members = listOf(GroupMember.sampleData, GroupMember.sampleData, GroupMember.sampleData),
+      developerTools = false,
+      addMembers = {}, showMemberInfo = {}, editGroupProfile = {}, deleteGroup = {}, clearChat = {}, leaveGroup = {}
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/group/GroupMemberInfoView.kt

@@ -0,0 +1,190 @@
+package chat.simplex.app.views.chat.group
+
+import InfoRow
+import SectionDivider
+import SectionItemView
+import SectionSpacer
+import SectionView
+import androidx.activity.compose.BackHandler
+import androidx.compose.foundation.*
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.chat.SimplexServers
+import chat.simplex.app.views.helpers.*
+
+@Composable
+fun GroupMemberInfoView(groupInfo: GroupInfo, member: GroupMember, connStats: ConnectionStats?, chatModel: ChatModel, close: () -> Unit) {
+  BackHandler(onBack = close)
+  val chat = chatModel.chats.firstOrNull { it.id == chatModel.chatId.value }
+  val developerTools = chatModel.controller.appPrefs.developerTools.get()
+  if (chat != null) {
+    GroupMemberInfoLayout(
+      groupInfo,
+      member,
+      connStats,
+      developerTools,
+      removeMember = { removeMemberDialog(groupInfo, member, chatModel, close) }
+    )
+  }
+}
+
+fun removeMemberDialog(groupInfo: GroupInfo, member: GroupMember, chatModel: ChatModel, close: (() -> Unit)? = null) {
+  AlertManager.shared.showAlertMsg(
+    title = generalGetString(R.string.button_remove_member),
+    text = generalGetString(R.string.member_will_be_removed_from_group_cannot_be_undone),
+    confirmText = generalGetString(R.string.remove_member_confirmation),
+    onConfirm = {
+      withApi {
+        val removedMember = chatModel.controller.apiRemoveMember(member.groupId, member.groupMemberId)
+        if (removedMember != null) {
+          chatModel.upsertGroupMember(groupInfo, removedMember)
+        }
+        close?.invoke()
+      }
+    }
+  )
+}
+
+@Composable
+fun GroupMemberInfoLayout(
+  groupInfo: GroupInfo,
+  member: GroupMember,
+  connStats: ConnectionStats?,
+  developerTools: Boolean,
+  removeMember: () -> Unit,
+) {
+  Column(
+    Modifier
+      .fillMaxWidth()
+      .verticalScroll(rememberScrollState()),
+    horizontalAlignment = Alignment.Start
+  ) {
+    Row(
+      Modifier.fillMaxWidth(),
+      horizontalArrangement = Arrangement.Center
+    ) {
+      GroupMemberInfoHeader(member)
+    }
+    SectionSpacer()
+
+    SectionView(title = stringResource(R.string.member_info_section_title_member)) {
+      InfoRow(stringResource(R.string.info_row_group), groupInfo.displayName)
+      val conn = member.activeConn
+      if (conn != null) {
+        SectionDivider()
+        val connLevelDesc =
+          if (conn.connLevel == 0) stringResource(R.string.conn_level_desc_direct)
+          else String.format(generalGetString(R.string.conn_level_desc_indirect), conn.connLevel)
+        InfoRow(stringResource(R.string.info_row_connection), connLevelDesc)
+      }
+    }
+    SectionSpacer()
+
+    if (connStats != null) {
+      val rcvServers = connStats.rcvServers
+      val sndServers = connStats.sndServers
+      if ((rcvServers != null && rcvServers.isNotEmpty()) || (sndServers != null && sndServers.isNotEmpty())) {
+        SectionView(title = stringResource(R.string.conn_stats_section_title_servers)) {
+          if (rcvServers != null && rcvServers.isNotEmpty()) {
+            SimplexServers(stringResource(R.string.receiving_via), rcvServers)
+            if (sndServers != null && sndServers.isNotEmpty()) {
+              SectionDivider()
+              SimplexServers(stringResource(R.string.sending_via), sndServers)
+            }
+          } else if (sndServers != null && sndServers.isNotEmpty()) {
+            SimplexServers(stringResource(R.string.sending_via), sndServers)
+          }
+        }
+        SectionSpacer()
+      }
+    }
+
+    if (member.canBeRemoved(groupInfo.membership)) {
+      SectionView {
+        SectionItemView {
+          RemoveMemberButton(removeMember)
+        }
+      }
+      SectionSpacer()
+    }
+
+    if (developerTools) {
+      SectionView(title = stringResource(R.string.section_title_for_console)) {
+        InfoRow(stringResource(R.string.info_row_local_name), member.localDisplayName)
+        SectionDivider()
+        InfoRow(stringResource(R.string.info_row_database_id), member.groupMemberId.toString())
+      }
+      SectionSpacer()
+    }
+  }
+}
+
+@Composable
+fun GroupMemberInfoHeader(member: GroupMember) {
+  Column(
+    Modifier.padding(horizontal = 8.dp),
+    horizontalAlignment = Alignment.CenterHorizontally
+  ) {
+    ProfileImage(size = 192.dp, member.image, color = if (isSystemInDarkTheme()) GroupDark else SettingsSecondaryLight)
+    Text(
+      member.displayName, style = MaterialTheme.typography.h1.copy(fontWeight = FontWeight.Normal),
+      color = MaterialTheme.colors.onBackground,
+      maxLines = 1,
+      overflow = TextOverflow.Ellipsis
+    )
+    if (member.fullName != "" && member.fullName != member.displayName) {
+      Text(
+        member.fullName, style = MaterialTheme.typography.h2,
+        color = MaterialTheme.colors.onBackground,
+        maxLines = 2,
+        overflow = TextOverflow.Ellipsis
+      )
+    }
+  }
+}
+
+@Composable
+fun RemoveMemberButton(removeMember: () -> Unit) {
+  Row(
+    Modifier
+      .fillMaxSize()
+      .clickable { removeMember() },
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Icon(
+      Icons.Outlined.Delete,
+      stringResource(R.string.button_remove_member),
+      tint = Color.Red
+    )
+    Spacer(Modifier.size(8.dp))
+    Text(stringResource(R.string.button_remove_member), color = Color.Red)
+  }
+}
+
+@Preview
+@Composable
+fun PreviewGroupMemberInfoLayout() {
+  SimpleXTheme {
+    GroupMemberInfoLayout(
+      groupInfo = GroupInfo.sampleData,
+      member = GroupMember.sampleData,
+      connStats = null,
+      developerTools = false,
+      removeMember = {}
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/group/GroupProfileView.kt

@@ -0,0 +1,173 @@
+package chat.simplex.app.views.chat.group
+
+import android.content.res.Configuration
+import android.graphics.Bitmap
+import androidx.compose.foundation.*
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.HighOrLowlight
+import chat.simplex.app.ui.theme.SimpleXTheme
+import chat.simplex.app.views.ProfileNameField
+import chat.simplex.app.views.helpers.*
+import chat.simplex.app.views.isValidDisplayName
+import chat.simplex.app.views.usersettings.*
+import com.google.accompanist.insets.ProvideWindowInsets
+import com.google.accompanist.insets.navigationBarsWithImePadding
+import kotlinx.coroutines.launch
+
+@Composable
+fun GroupProfileView(groupInfo: GroupInfo, chatModel: ChatModel, close: () -> Unit) {
+  GroupProfileLayout(
+    close = close,
+    groupProfile = groupInfo.groupProfile,
+    saveProfile = { p ->
+      withApi {
+        val gInfo = chatModel.controller.apiUpdateGroup(groupInfo.groupId, p)
+        if (gInfo != null) {
+          chatModel.updateGroup(gInfo)
+          close.invoke()
+        }
+      }
+    }
+  )
+}
+
+@Composable
+fun GroupProfileLayout(
+  close: () -> Unit,
+  groupProfile: GroupProfile,
+  saveProfile: (GroupProfile) -> Unit,
+) {
+  val bottomSheetModalState = rememberModalBottomSheetState(initialValue = ModalBottomSheetValue.Hidden)
+  val displayName = remember { mutableStateOf(groupProfile.displayName) }
+  val fullName = remember { mutableStateOf(groupProfile.fullName) }
+  val chosenImage = remember { mutableStateOf<Bitmap?>(null) }
+  val profileImage = remember { mutableStateOf(groupProfile.image) }
+  val scope = rememberCoroutineScope()
+  val scrollState = rememberScrollState()
+  val focusRequester = remember { FocusRequester() }
+
+  ProvideWindowInsets(windowInsetsAnimationsEnabled = true) {
+    ModalBottomSheetLayout(
+      scrimColor = Color.Black.copy(alpha = 0.12F),
+      modifier = Modifier.navigationBarsWithImePadding(),
+      sheetContent = {
+        GetImageBottomSheet(
+          chosenImage,
+          onImageChange = { bitmap -> profileImage.value = resizeImageToStrSize(cropToSquare(bitmap), maxDataSize = 12500) },
+          hideBottomSheet = {
+            scope.launch { bottomSheetModalState.hide() }
+          })
+      },
+      sheetState = bottomSheetModalState,
+      sheetShape = RoundedCornerShape(topStart = 18.dp, topEnd = 18.dp)
+    ) {
+      ModalView(close = close) {
+        Column(
+          Modifier
+            .verticalScroll(scrollState)
+            .padding(bottom = 16.dp),
+          horizontalAlignment = Alignment.Start
+        ) {
+          Text(
+            stringResource(R.string.group_profile_is_stored_on_members_devices),
+            Modifier.padding(bottom = 24.dp),
+            color = MaterialTheme.colors.onBackground,
+            lineHeight = 22.sp
+          )
+          Column(
+            Modifier.fillMaxWidth(),
+            horizontalAlignment = Alignment.Start
+          ) {
+            Box(
+              Modifier
+                .fillMaxWidth()
+                .padding(bottom = 24.dp),
+              contentAlignment = Alignment.Center
+            ) {
+              Box(contentAlignment = Alignment.TopEnd) {
+                Box(contentAlignment = Alignment.Center) {
+                  ProfileImage(192.dp, profileImage.value)
+                  EditImageButton { scope.launch { bottomSheetModalState.show() } }
+                }
+                if (profileImage.value != null) {
+                  DeleteImageButton { profileImage.value = null }
+                }
+              }
+            }
+            Text(
+              stringResource(R.string.group_display_name_field),
+              Modifier.padding(bottom = 3.dp)
+            )
+            ProfileNameField(displayName, focusRequester)
+            val errorText = if (!isValidDisplayName(displayName.value)) stringResource(R.string.display_name_cannot_contain_whitespace) else ""
+            Text(
+              errorText,
+              fontSize = 15.sp,
+              color = MaterialTheme.colors.error
+            )
+            Spacer(Modifier.height(3.dp))
+            Text(
+              stringResource(R.string.group_full_name_field),
+              Modifier.padding(bottom = 5.dp)
+            )
+            ProfileNameField(fullName)
+            Spacer(Modifier.height(16.dp))
+            Row {
+              TextButton(stringResource(R.string.cancel_verb)) {
+                close.invoke()
+              }
+              Spacer(Modifier.padding(horizontal = 8.dp))
+              val enabled = displayName.value.isNotEmpty() && isValidDisplayName(displayName.value)
+              if (enabled) {
+                Text(
+                  stringResource(R.string.save_group_profile),
+                  modifier = Modifier.clickable { saveProfile(GroupProfile(displayName.value, fullName.value, profileImage.value)) },
+                  color = MaterialTheme.colors.primary
+                )
+              } else {
+                Text(
+                  stringResource(R.string.save_group_profile),
+                  color = HighOrLowlight
+                )
+              }
+            }
+          }
+
+          LaunchedEffect(Unit) {
+            focusRequester.requestFocus()
+          }
+        }
+      }
+    }
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewGroupProfileLayout() {
+  SimpleXTheme {
+    GroupProfileLayout(
+      close = {},
+      groupProfile = GroupProfile.sampleData,
+      saveProfile = { _ -> }
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/item/CICallItemView.kt

@@ -0,0 +1,157 @@
+package chat.simplex.app.views.chat.item
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.Icon
+import androidx.compose.material.Text
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.PhoneInTalk
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.*
+
+@Composable
+fun CICallItemView(cInfo: ChatInfo, cItem: ChatItem, status: CICallStatus, duration: Int, acceptCall: (Contact) -> Unit) {
+  val sent = cItem.chatDir.sent
+  Column(
+    Modifier
+      .padding(horizontal = 4.dp)
+      .padding(bottom = 8.dp), horizontalAlignment = Alignment.CenterHorizontally) {
+    @Composable fun ConnectingCallIcon() = Icon(Icons.Outlined.SettingsPhone, stringResource(R.string.icon_descr_call_connecting), tint = Color.Green)
+    when (status) {
+      CICallStatus.Pending -> if (sent) {
+        Icon(Icons.Outlined.Call, stringResource(R.string.icon_descr_call_pending_sent))
+      } else {
+        AcceptCallButton(cInfo, acceptCall)
+      }
+      CICallStatus.Missed -> Icon(Icons.Outlined.Call, stringResource(R.string.icon_descr_call_missed), tint = Color.Red)
+      CICallStatus.Rejected -> Icon(Icons.Outlined.CallEnd, stringResource(R.string.icon_descr_call_rejected), tint = Color.Red)
+      CICallStatus.Accepted -> ConnectingCallIcon()
+      CICallStatus.Negotiated -> ConnectingCallIcon()
+      CICallStatus.Progress -> Icon(Icons.Filled.PhoneInTalk, stringResource(R.string.icon_descr_call_progress), tint = SimplexGreen)
+      CICallStatus.Ended -> Row {
+        Icon(Icons.Outlined.CallEnd, stringResource(R.string.icon_descr_call_ended), tint = HighOrLowlight, modifier = Modifier.padding(end = 4.dp))
+        Text(status.duration(duration), color = HighOrLowlight)
+      }
+      CICallStatus.Error -> {}
+    }
+
+    Text(
+      cItem.timestampText,
+      color = HighOrLowlight,
+      fontSize = 14.sp,
+      modifier = Modifier.padding(start = 3.dp)
+    )
+  }
+}
+
+@Composable
+fun AcceptCallButton(cInfo: ChatInfo, acceptCall: (Contact) -> Unit) {
+  if (cInfo is ChatInfo.Direct) {
+    SimpleButton(stringResource(R.string.answer_call), Icons.Outlined.RingVolume) { acceptCall(cInfo.contact) }
+  } else {
+    Icon(Icons.Outlined.RingVolume, stringResource(R.string.answer_call), tint = HighOrLowlight)
+  }
+//    if case let .direct(contact) = chatInfo {
+//      Button {
+//        if let invitation = m.callInvitations.removeValue(forKey: contact.id) {
+//        m.activeCallInvitation = nil
+//        m.activeCall = Call(
+//          contact: contact,
+//          callState: .invitationReceived,
+//        localMedia: invitation.peerMedia,
+//        sharedKey: invitation.sharedKey
+//        )
+//        m.showCallView = true
+//        m.callCommand = .start(media: invitation.peerMedia, aesKey: invitation.sharedKey, useWorker: true)
+//      } else {
+//        AlertManager.shared.showAlertMsg(title: "Call already ended!")
+//      }
+//      } label: {
+//        Label("Answer call", systemImage: "phone.arrow.down.left")
+//      }
+//    } else {
+//      Image(systemName: "phone.arrow.down.left").foregroundColor(.secondary)
+//    }
+
+}
+
+//struct CICallItemView: View {
+//  @EnvironmentObject var m: ChatModel
+//  var chatInfo: ChatInfo
+//  var chatItem: ChatItem
+//  var status: CICallStatus
+//  var duration: Int
+//
+//  var body: some View {
+//    switch status {
+//      case .pending:
+//      if sent {
+//        Image(systemName: "phone.arrow.up.right").foregroundColor(.secondary)
+//      } else {
+//        acceptCallButton()
+//      }
+//      case .missed: missedCallIcon(sent).foregroundColor(.red)
+//      case .rejected: Image(systemName: "phone.down").foregroundColor(.secondary)
+//      case .accepted: connectingCallIcon()
+//      case .negotiated: connectingCallIcon()
+//      case .progress: Image(systemName: "phone.and.waveform.fill").foregroundColor(.green)
+//      case .ended: endedCallIcon(sent)
+//      case .error: missedCallIcon(sent).foregroundColor(.orange)
+//    }
+//
+//    chatItem.timestampText
+//      .font(.caption)
+//    .foregroundColor(.secondary)
+//    .padding(.bottom, 8)
+//    .padding(.horizontal, 12)
+//  }
+//  }
+//
+//  private func missedCallIcon(_ sent: Bool) -> some View {
+//    Image(systemName: sent ? "phone.arrow.up.right" : "phone.arrow.down.left")
+//  }
+//
+//  private func connectingCallIcon() -> some View {
+//    Image(systemName: "phone.connection").foregroundColor(.green)
+//  }
+//
+//  @ViewBuilder private func endedCallIcon(_ sent: Bool) -> some View {
+//    HStack {
+//      Image(systemName: "phone.down")
+//      Text(CICallStatus.durationText(duration)).foregroundColor(.secondary)
+//    }
+//  }
+//
+//
+//  @ViewBuilder private func acceptCallButton() -> some View {
+//    if case let .direct(contact) = chatInfo {
+//      Button {
+//        if let invitation = m.callInvitations.removeValue(forKey: contact.id) {
+//        m.activeCallInvitation = nil
+//        m.activeCall = Call(
+//          contact: contact,
+//          callState: .invitationReceived,
+//        localMedia: invitation.peerMedia,
+//        sharedKey: invitation.sharedKey
+//        )
+//        m.showCallView = true
+//        m.callCommand = .start(media: invitation.peerMedia, aesKey: invitation.sharedKey, useWorker: true)
+//      } else {
+//        AlertManager.shared.showAlertMsg(title: "Call already ended!")
+//      }
+//      } label: {
+//        Label("Answer call", systemImage: "phone.arrow.down.left")
+//      }
+//    } else {
+//      Image(systemName: "phone.arrow.down.left").foregroundColor(.secondary)
+//    }
+//  }
+//}

apps/android/app/src/main/java/chat/simplex/app/views/chat/item/CIFileView.kt

@@ -0,0 +1,211 @@
+package chat.simplex.app.views.chat.item
+
+import android.widget.Toast
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Check
+import androidx.compose.material.icons.filled.InsertDriveFile
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.*
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.helpers.*
+import kotlinx.datetime.Clock
+
+@Composable
+fun CIFileView(
+  file: CIFile?,
+  edited: Boolean,
+  receiveFile: (Long) -> Unit
+) {
+  val context = LocalContext.current
+  val saveFileLauncher = rememberSaveFileLauncher(cxt = context, ciFile = file)
+
+  @Composable
+  fun fileIcon(
+    innerIcon: ImageVector? = null,
+    color: Color = if (isSystemInDarkTheme()) FileDark else FileLight
+  ) {
+    Box(
+      contentAlignment = Alignment.Center
+    ) {
+      Icon(
+        Icons.Filled.InsertDriveFile,
+        stringResource(R.string.icon_descr_file),
+        Modifier.fillMaxSize(),
+        tint = color
+      )
+      if (innerIcon != null) {
+        Icon(
+          innerIcon,
+          stringResource(R.string.icon_descr_file),
+          Modifier
+            .size(32.dp)
+            .padding(top = 12.dp),
+          tint = Color.White
+        )
+      }
+    }
+  }
+
+  fun fileSizeValid(): Boolean {
+    if (file != null) {
+      return file.fileSize <= MAX_FILE_SIZE
+    }
+    return false
+  }
+
+  fun fileAction() {
+    if (file != null) {
+      when (file.fileStatus) {
+        CIFileStatus.RcvInvitation -> {
+          if (fileSizeValid()) {
+            receiveFile(file.fileId)
+          } else {
+            AlertManager.shared.showAlertMsg(
+              generalGetString(R.string.large_file),
+              String.format(generalGetString(R.string.contact_sent_large_file), formatBytes(MAX_FILE_SIZE))
+            )
+          }
+        }
+        CIFileStatus.RcvAccepted ->
+          AlertManager.shared.showAlertMsg(
+            generalGetString(R.string.waiting_for_file),
+            String.format(generalGetString(R.string.file_will_be_received_when_contact_is_online), MAX_FILE_SIZE)
+          )
+        CIFileStatus.RcvComplete -> {
+          val filePath = getLoadedFilePath(context, file)
+          if (filePath != null) {
+            saveFileLauncher.launch(file.fileName)
+          } else {
+            Toast.makeText(context, generalGetString(R.string.file_not_found), Toast.LENGTH_SHORT).show()
+          }
+        }
+        else -> {}
+      }
+    }
+  }
+
+  @Composable
+  fun progressIndicator() {
+    CircularProgressIndicator(
+      Modifier.size(32.dp),
+      color = if (isSystemInDarkTheme()) FileDark else FileLight,
+      strokeWidth = 4.dp
+    )
+  }
+
+  @Composable
+  fun fileIndicator() {
+    Box(
+      Modifier
+        .size(42.dp)
+        .clip(RoundedCornerShape(4.dp))
+        .clickable(onClick = { fileAction() }),
+      contentAlignment = Alignment.Center
+    ) {
+      if (file != null) {
+        when (file.fileStatus) {
+          CIFileStatus.SndStored -> fileIcon()
+          CIFileStatus.SndTransfer -> progressIndicator()
+          CIFileStatus.SndComplete -> fileIcon(innerIcon = Icons.Filled.Check)
+          CIFileStatus.SndCancelled -> fileIcon(innerIcon = Icons.Outlined.Close)
+          CIFileStatus.RcvInvitation ->
+            if (fileSizeValid())
+              fileIcon(innerIcon = Icons.Outlined.ArrowDownward, color = MaterialTheme.colors.primary)
+            else
+              fileIcon(innerIcon = Icons.Outlined.PriorityHigh, color = WarningOrange)
+          CIFileStatus.RcvAccepted -> fileIcon(innerIcon = Icons.Outlined.MoreHoriz)
+          CIFileStatus.RcvTransfer -> progressIndicator()
+          CIFileStatus.RcvComplete -> fileIcon()
+          CIFileStatus.RcvCancelled -> fileIcon(innerIcon = Icons.Outlined.Close)
+        }
+      } else {
+        fileIcon()
+      }
+    }
+  }
+
+  Row(
+    Modifier.padding(top = 4.dp, bottom = 6.dp, start = 6.dp, end = 12.dp),
+    verticalAlignment = Alignment.Bottom,
+    horizontalArrangement = Arrangement.spacedBy(2.dp)
+  ) {
+    fileIndicator()
+    val metaReserve = if (edited)
+      "                     "
+    else
+      "                 "
+    if (file != null) {
+      Column(
+        horizontalAlignment = Alignment.Start
+      ) {
+        Text(
+          file.fileName,
+          maxLines = 1
+        )
+        Text(
+          formatBytes(file.fileSize) + metaReserve,
+          color = HighOrLowlight,
+          fontSize = 14.sp,
+          maxLines = 1
+        )
+      }
+    } else {
+      Text(metaReserve)
+    }
+  }
+}
+
+class ChatItemProvider: PreviewParameterProvider<ChatItem> {
+  private val sentFile = ChatItem(
+    chatDir = CIDirection.DirectSnd(),
+    meta = CIMeta.getSample(1, Clock.System.now(), "", CIStatus.SndSent(), itemDeleted = false, itemEdited = true, editable = false),
+    content = CIContent.SndMsgContent(msgContent = MsgContent.MCFile("")),
+    quotedItem = null,
+    file = CIFile.getSample(fileStatus = CIFileStatus.SndComplete)
+  )
+  private val fileChatItemWtFile = ChatItem(
+    chatDir = CIDirection.DirectRcv(),
+    meta = CIMeta.getSample(1, Clock.System.now(), "", CIStatus.RcvRead(), itemDeleted = false, itemEdited = false, editable = false),
+    content = CIContent.RcvMsgContent(msgContent = MsgContent.MCFile("")),
+    quotedItem = null,
+    file = null
+  )
+  override val values = listOf(
+    sentFile,
+    ChatItem.getFileMsgContentSample(),
+    ChatItem.getFileMsgContentSample(fileName = "some_long_file_name_here", fileStatus = CIFileStatus.RcvInvitation),
+    ChatItem.getFileMsgContentSample(fileStatus = CIFileStatus.RcvAccepted),
+    ChatItem.getFileMsgContentSample(fileStatus = CIFileStatus.RcvTransfer),
+    ChatItem.getFileMsgContentSample(fileStatus = CIFileStatus.RcvCancelled),
+    ChatItem.getFileMsgContentSample(fileSize = 1_000_000_000, fileStatus = CIFileStatus.RcvInvitation),
+    ChatItem.getFileMsgContentSample(text = "Hello there", fileStatus = CIFileStatus.RcvInvitation),
+    ChatItem.getFileMsgContentSample(text = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.", fileStatus = CIFileStatus.RcvInvitation),
+    fileChatItemWtFile
+  ).asSequence()
+}
+
+@Preview
+@Composable
+fun PreviewCIFileFramedItemView(@PreviewParameter(ChatItemProvider::class) chatItem: ChatItem) {
+  val showMenu = remember { mutableStateOf(false) }
+  SimpleXTheme {
+    FramedItemView(User.sampleData, chatItem, showMenu = showMenu, receiveFile = {})
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/item/CIGroupEventView.kt

@@ -0,0 +1,59 @@
+package chat.simplex.app.views.chat.item
+
+import android.content.res.Configuration
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.*
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.model.ChatItem
+import chat.simplex.app.ui.theme.HighOrLowlight
+import chat.simplex.app.ui.theme.SimpleXTheme
+
+@Composable
+fun CIGroupEventView(ci: ChatItem) {
+  fun withGroupEventStyle(builder: AnnotatedString.Builder, text: String) {
+    return builder.withStyle(SpanStyle(fontSize = 12.sp, fontWeight = FontWeight.Light, color = HighOrLowlight)) { append(text) }
+  }
+
+  Surface {
+    Row(
+      Modifier.padding(horizontal = 6.dp, vertical = 6.dp),
+      verticalAlignment = Alignment.Bottom
+    ) {
+      Text(
+        buildAnnotatedString {
+          val memberDisplayName = ci.memberDisplayName
+          if (memberDisplayName != null) {
+            withGroupEventStyle(this, memberDisplayName)
+            append(" ")
+          }
+          withGroupEventStyle(this, ci.content.text)
+          append(" ")
+          withGroupEventStyle(this, ci.timestampText)
+        },
+        style = MaterialTheme.typography.body1.copy(lineHeight = 22.sp)
+      )
+    }
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  name = "Dark Mode"
+)
+@Composable
+fun CIGroupEventViewPreview() {
+  SimpleXTheme {
+    CIGroupEventView(
+      ChatItem.getGroupEventSample()
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/item/CIGroupInvitationView.kt

@@ -0,0 +1,169 @@
+package chat.simplex.app.views.chat.item
+
+import android.content.res.Configuration
+import android.util.Log
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.SupervisedUserCircle
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.tooling.preview.*
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+import chat.simplex.app.TAG
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.helpers.*
+
+@Composable
+fun CIGroupInvitationView(
+  ci: ChatItem,
+  groupInvitation: CIGroupInvitation,
+  memberRole: GroupMemberRole,
+  joinGroup: (Long) -> Unit
+) {
+  val sent = ci.chatDir.sent
+  val action = !sent && groupInvitation.status == CIGroupInvitationStatus.Pending
+
+  @Composable
+  fun groupInfoView() {
+    val p = groupInvitation.groupProfile
+    val iconColor =
+      if (action) MaterialTheme.colors.primary
+      else if (isSystemInDarkTheme()) FileDark else FileLight
+
+    Row(
+      Modifier
+        .defaultMinSize(minWidth = 220.dp)
+        .padding(vertical = 4.dp)
+        .padding(end = 2.dp)
+    ) {
+      ProfileImage(size = 60.dp, icon = Icons.Filled.SupervisedUserCircle, color = iconColor)
+      Spacer(Modifier.padding(horizontal = 3.dp))
+      Column(
+        Modifier.defaultMinSize(minHeight = 60.dp),
+        verticalArrangement = Arrangement.Center
+      ) {
+        Text(p.displayName, style = MaterialTheme.typography.caption, fontWeight = FontWeight.Medium, maxLines = 2, overflow = TextOverflow.Ellipsis)
+        if (p.fullName != "" && p.displayName != p.fullName) {
+          Text(p.fullName, maxLines = 2, overflow = TextOverflow.Ellipsis)
+        }
+      }
+    }
+  }
+
+  @Composable
+  fun groupInvitationText() {
+    when {
+      sent -> Text(stringResource(R.string.you_sent_group_invitation))
+      !sent && groupInvitation.status == CIGroupInvitationStatus.Pending -> Text(stringResource(R.string.you_are_invited_to_group))
+      !sent && groupInvitation.status == CIGroupInvitationStatus.Accepted -> Text(stringResource(R.string.you_joined_this_group))
+      !sent && groupInvitation.status == CIGroupInvitationStatus.Rejected -> Text(stringResource(R.string.you_rejected_group_invitation))
+      !sent && groupInvitation.status == CIGroupInvitationStatus.Expired -> Text(stringResource(R.string.group_invitation_expired))
+    }
+  }
+
+  fun acceptInvitation() {
+    Log.d(TAG, "CIGroupInvitationView acceptInvitation")
+    joinGroup(groupInvitation.groupId)
+  }
+
+  Surface(
+    modifier = if (action) Modifier.clickable(onClick = ::acceptInvitation) else Modifier,
+    shape = RoundedCornerShape(18.dp),
+    color = if (sent) SentColorLight else ReceivedColorLight,
+  ) {
+    Box(
+      Modifier
+        .width(IntrinsicSize.Min)
+        .padding(vertical = 3.dp)
+        .padding(start = 8.dp, end = 12.dp),
+      contentAlignment = Alignment.BottomEnd
+    ) {
+      Column(
+        Modifier
+          .defaultMinSize(minWidth = 220.dp)
+          .padding(bottom = 4.dp),
+        horizontalAlignment = Alignment.Start
+      ) {
+        groupInfoView()
+        Column(Modifier.padding(top = 2.dp, start = 5.dp)) {
+          Divider(Modifier.fillMaxWidth().padding(bottom = 4.dp))
+          if (action) {
+            groupInvitationText()
+            Text(stringResource(R.string.group_invitation_tap_to_join), color = MaterialTheme.colors.primary)
+          } else {
+            Box(Modifier.padding(end = 48.dp)) {
+              groupInvitationText()
+            }
+          }
+        }
+      }
+      Text(
+        ci.timestampText,
+        color = HighOrLowlight,
+        fontSize = 14.sp,
+        modifier = Modifier.padding(start = 3.dp)
+      )
+    }
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  name = "Dark Mode"
+)
+@Composable
+fun PendingCIGroupInvitationViewPreview() {
+  SimpleXTheme {
+    CIGroupInvitationView(
+      ci = ChatItem.getGroupInvitationSample(),
+      groupInvitation = CIGroupInvitation.getSample(),
+      memberRole = GroupMemberRole.Admin,
+      joinGroup = {}
+    )
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  name = "Dark Mode"
+)
+@Composable
+fun CIGroupInvitationViewAcceptedPreview() {
+  SimpleXTheme {
+    CIGroupInvitationView(
+      ci = ChatItem.getGroupInvitationSample(),
+      groupInvitation = CIGroupInvitation.getSample(status = CIGroupInvitationStatus.Accepted),
+      memberRole = GroupMemberRole.Admin,
+      joinGroup = {}
+    )
+  }
+}
+
+@Preview(showBackground = true)
+@Composable
+fun CIGroupInvitationViewLongNamePreview() {
+  SimpleXTheme {
+    CIGroupInvitationView(
+      ci = ChatItem.getGroupInvitationSample(),
+      groupInvitation = CIGroupInvitation.getSample(
+        groupProfile = GroupProfile("group_with_a_really_really_really_long_name", "Group With A Really Really Really Long Name"),
+        status = CIGroupInvitationStatus.Accepted
+      ),
+      memberRole = GroupMemberRole.Admin,
+      joinGroup = {}
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/item/CIImageView.kt

@@ -0,0 +1,121 @@
+import android.graphics.Bitmap
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.combinedClickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.CircularProgressIndicator
+import androidx.compose.material.Icon
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Check
+import androidx.compose.material.icons.outlined.MoreHoriz
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.MutableState
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.asImageBitmap
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.model.CIFile
+import chat.simplex.app.model.CIFileStatus
+import chat.simplex.app.views.helpers.*
+
+@Composable
+fun CIImageView(
+  image: String,
+  file: CIFile?,
+  showMenu: MutableState<Boolean>,
+  receiveFile: (Long) -> Unit
+) {
+  @Composable
+  fun loadingIndicator() {
+    if (file != null) {
+      Box(
+        Modifier
+          .padding(8.dp)
+          .size(20.dp),
+        contentAlignment = Alignment.Center
+      ) {
+        when (file.fileStatus) {
+          CIFileStatus.SndTransfer ->
+            CircularProgressIndicator(
+              Modifier.size(16.dp),
+              color = Color.White,
+              strokeWidth = 2.dp
+            )
+          CIFileStatus.SndComplete ->
+            Icon(
+              Icons.Filled.Check,
+              stringResource(R.string.icon_descr_image_snd_complete),
+              Modifier.fillMaxSize(),
+              tint = Color.White
+            )
+          CIFileStatus.RcvAccepted ->
+            Icon(
+              Icons.Outlined.MoreHoriz,
+              stringResource(R.string.icon_descr_waiting_for_image),
+              Modifier.fillMaxSize(),
+              tint = Color.White
+            )
+          CIFileStatus.RcvTransfer ->
+            CircularProgressIndicator(
+              Modifier.size(16.dp),
+              color = Color.White,
+              strokeWidth = 2.dp
+            )
+          else -> {}
+        }
+      }
+    }
+  }
+
+  @Composable
+  fun imageView(imageBitmap: Bitmap, onClick: () -> Unit) {
+    Image(
+      imageBitmap.asImageBitmap(),
+      contentDescription = stringResource(R.string.image_descr),
+      // .width(1000.dp) is a hack for image to increase IntrinsicSize of FramedItemView
+      // if text is short and take all available width if text is long
+      modifier = Modifier
+        .width(1000.dp)
+        .combinedClickable(
+          onLongClick = { showMenu.value = true },
+          onClick = onClick
+        ),
+      contentScale = ContentScale.FillWidth,
+    )
+  }
+
+  Box(contentAlignment = Alignment.TopEnd) {
+    val context = LocalContext.current
+    val imageBitmap: Bitmap? = getLoadedImage(context, file)
+    if (imageBitmap != null) {
+      imageView(imageBitmap, onClick = {
+        if (getLoadedFilePath(context, file) != null) {
+          ModalManager.shared.showCustomModal { close -> ImageFullScreenView(imageBitmap, close) }
+        }
+      })
+    } else {
+      imageView(base64ToBitmap(image), onClick = {
+        if (file != null) {
+          when (file.fileStatus) {
+            CIFileStatus.RcvInvitation ->
+              receiveFile(file.fileId)
+            CIFileStatus.RcvAccepted ->
+              AlertManager.shared.showAlertMsg(
+                generalGetString(R.string.waiting_for_image),
+                generalGetString(R.string.image_will_be_received_when_contact_is_online)
+              )
+            CIFileStatus.RcvTransfer -> {} // ?
+            CIFileStatus.RcvComplete -> {} // ?
+            CIFileStatus.RcvCancelled -> {} // TODO
+            else -> {}
+          }
+        }
+      })
+    }
+    loadingIndicator()
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/item/CIMetaView.kt

@@ -0,0 +1,158 @@
+package chat.simplex.app.views.chat.item
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.Icon
+import androidx.compose.material.Text
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.HighOrLowlight
+import chat.simplex.app.ui.theme.SimplexBlue
+import kotlinx.datetime.Clock
+
+@Composable
+fun CIMetaView(chatItem: ChatItem, metaColor: Color = HighOrLowlight) {
+  Row(verticalAlignment = Alignment.CenterVertically) {
+    if (!chatItem.isDeletedContent) {
+      if (chatItem.meta.itemEdited) {
+        Icon(
+          Icons.Filled.Edit,
+          modifier = Modifier.height(12.dp).padding(end = 1.dp),
+          contentDescription = stringResource(R.string.icon_descr_edited),
+          tint = metaColor,
+        )
+      }
+      CIStatusView(chatItem.meta.itemStatus, metaColor)
+    }
+    Text(
+      chatItem.timestampText,
+      color = metaColor,
+      fontSize = 14.sp,
+      modifier = Modifier.padding(start = 3.dp)
+    )
+  }
+}
+
+
+@Composable
+fun CIStatusView(status: CIStatus, metaColor: Color = HighOrLowlight) {
+  when (status) {
+    is CIStatus.SndSent -> {
+      Icon(Icons.Filled.Check, stringResource(R.string.icon_descr_sent_msg_status_sent), Modifier.height(12.dp), tint = metaColor)
+    }
+    is CIStatus.SndErrorAuth -> {
+      Icon(Icons.Filled.Close,  stringResource(R.string.icon_descr_sent_msg_status_unauthorized_send), Modifier.height(12.dp), tint = Color.Red)
+    }
+    is CIStatus.SndError -> {
+      Icon(Icons.Filled.WarningAmber, stringResource(R.string.icon_descr_sent_msg_status_send_failed), Modifier.height(12.dp), tint = Color.Yellow)
+    }
+    is CIStatus.RcvNew -> {
+      Icon(Icons.Filled.Circle, stringResource(R.string.icon_descr_received_msg_status_unread), Modifier.height(12.dp), tint = SimplexBlue)
+    }
+    else -> {}
+  }
+}
+
+@Preview
+@Composable
+fun PreviewCIMetaView() {
+  CIMetaView(
+    chatItem = ChatItem.getSampleData(
+      1, CIDirection.DirectSnd(), Clock.System.now(), "hello"
+    )
+  )
+}
+
+@Preview
+@Composable
+fun PreviewCIMetaViewUnread() {
+  CIMetaView(
+    chatItem = ChatItem.getSampleData(
+      1, CIDirection.DirectSnd(), Clock.System.now(), "hello",
+      status = CIStatus.RcvNew()
+    )
+  )
+}
+
+@Preview
+@Composable
+fun PreviewCIMetaViewSendFailed() {
+  CIMetaView(
+    chatItem = ChatItem.getSampleData(
+      1, CIDirection.DirectSnd(), Clock.System.now(), "hello",
+      status = CIStatus.SndError(AgentErrorType.CMD(CommandErrorType.SYNTAX()))
+    )
+  )
+}
+
+@Preview
+@Composable
+fun PreviewCIMetaViewSendNoAuth() {
+  CIMetaView(
+    chatItem = ChatItem.getSampleData(
+      1, CIDirection.DirectSnd(), Clock.System.now(), "hello", status = CIStatus.SndErrorAuth()
+    )
+  )
+}
+
+@Preview
+@Composable
+fun PreviewCIMetaViewSendSent() {
+  CIMetaView(
+    chatItem = ChatItem.getSampleData(
+      1, CIDirection.DirectSnd(), Clock.System.now(), "hello", status = CIStatus.SndSent()
+    )
+  )
+}
+
+@Preview
+@Composable
+fun PreviewCIMetaViewEdited() {
+  CIMetaView(
+    chatItem = ChatItem.getSampleData(
+      1, CIDirection.DirectSnd(), Clock.System.now(), "hello",
+      itemEdited = true
+    )
+  )
+}
+
+@Preview
+@Composable
+fun PreviewCIMetaViewEditedUnread() {
+  CIMetaView(
+    chatItem = ChatItem.getSampleData(
+      1, CIDirection.DirectRcv(), Clock.System.now(), "hello",
+      itemEdited = true,
+      status=CIStatus.RcvNew()
+    )
+  )
+}
+
+@Preview
+@Composable
+fun PreviewCIMetaViewEditedSent() {
+  CIMetaView(
+    chatItem = ChatItem.getSampleData(
+      1, CIDirection.DirectSnd(), Clock.System.now(), "hello",
+      itemEdited = true,
+      status=CIStatus.SndSent()
+    )
+  )
+}
+
+@Preview
+@Composable
+fun PreviewCIMetaViewDeletedContent() {
+  CIMetaView(
+    chatItem = ChatItem.getDeletedContentSampleData()
+  )
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/item/ChatItemView.kt

@@ -0,0 +1,241 @@
+package chat.simplex.app.views.chat.item
+
+import android.content.*
+import androidx.compose.foundation.combinedClickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Edit
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.platform.*
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.SimpleXTheme
+import chat.simplex.app.views.chat.ComposeContextItem
+import chat.simplex.app.views.chat.ComposeState
+import chat.simplex.app.views.helpers.*
+import kotlinx.datetime.Clock
+
+@Composable
+fun ChatItemView(
+  user: User,
+  cInfo: ChatInfo,
+  cItem: ChatItem,
+  composeState: MutableState<ComposeState>,
+  cxt: Context,
+  uriHandler: UriHandler? = null,
+  showMember: Boolean = false,
+  useLinkPreviews: Boolean,
+  deleteMessage: (Long, CIDeleteMode) -> Unit,
+  receiveFile: (Long) -> Unit,
+  joinGroup: (Long) -> Unit,
+  acceptCall: (Contact) -> Unit
+) {
+  val context = LocalContext.current
+  val sent = cItem.chatDir.sent
+  val alignment = if (sent) Alignment.CenterEnd else Alignment.CenterStart
+  val showMenu = remember { mutableStateOf(false) }
+  val saveFileLauncher = rememberSaveFileLauncher(cxt = context, ciFile = cItem.file)
+  Box(
+    modifier = Modifier
+      .padding(bottom = 4.dp)
+      .fillMaxWidth(),
+    contentAlignment = alignment,
+  ) {
+    Column(
+      Modifier
+        .clip(RoundedCornerShape(18.dp))
+        .combinedClickable(onLongClick = { showMenu.value = true }, onClick = {})
+    ) {
+      @Composable fun ContentItem() {
+        if (cItem.file == null && cItem.quotedItem == null && isShortEmoji(cItem.content.text)) {
+          EmojiItemView(cItem)
+        } else {
+          val onLinkLongClick = { _: String -> showMenu.value = true }
+          FramedItemView(user, cItem, uriHandler, showMember = showMember, showMenu, receiveFile, onLinkLongClick)
+        }
+        DropdownMenu(
+          expanded = showMenu.value,
+          onDismissRequest = { showMenu.value = false },
+          Modifier.width(220.dp)
+        ) {
+          ItemAction(stringResource(R.string.reply_verb), Icons.Outlined.Reply, onClick = {
+            if (composeState.value.editing) {
+              composeState.value = ComposeState(contextItem = ComposeContextItem.QuotedItem(cItem), useLinkPreviews = useLinkPreviews)
+            } else {
+              composeState.value = composeState.value.copy(contextItem = ComposeContextItem.QuotedItem(cItem))
+            }
+            showMenu.value = false
+          })
+          ItemAction(stringResource(R.string.share_verb), Icons.Outlined.Share, onClick = {
+            shareText(cxt, cItem.content.text)
+            showMenu.value = false
+          })
+          ItemAction(stringResource(R.string.copy_verb), Icons.Outlined.ContentCopy, onClick = {
+            copyText(cxt, cItem.content.text)
+            showMenu.value = false
+          })
+          if (cItem.content.msgContent is MsgContent.MCImage || cItem.content.msgContent is MsgContent.MCFile) {
+            val filePath = getLoadedFilePath(context, cItem.file)
+            if (filePath != null) {
+              ItemAction(stringResource(R.string.save_verb), Icons.Outlined.SaveAlt, onClick = {
+                when (cItem.content.msgContent) {
+                  is MsgContent.MCImage -> saveImage(context, cItem.file)
+                  is MsgContent.MCFile -> saveFileLauncher.launch(cItem.file?.fileName)
+                  else -> {}
+                }
+                showMenu.value = false
+              })
+            }
+          }
+          if (cItem.meta.editable) {
+            ItemAction(stringResource(R.string.edit_verb), Icons.Filled.Edit, onClick = {
+              composeState.value = ComposeState(editingItem = cItem, useLinkPreviews = useLinkPreviews)
+              showMenu.value = false
+            })
+          }
+          ItemAction(
+            stringResource(R.string.delete_verb),
+            Icons.Outlined.Delete,
+            onClick = {
+              showMenu.value = false
+              deleteMessageAlertDialog(cItem, deleteMessage = deleteMessage)
+            },
+            color = Color.Red
+          )
+        }
+      }
+
+      @Composable fun DeletedItem() {
+        DeletedItemView(cItem, showMember = showMember)
+        DropdownMenu(
+          expanded = showMenu.value,
+          onDismissRequest = { showMenu.value = false },
+          Modifier.width(220.dp)
+        ) {
+          ItemAction(
+            stringResource(R.string.delete_verb),
+            Icons.Outlined.Delete,
+            onClick = {
+              showMenu.value = false
+              deleteMessageAlertDialog(cItem, deleteMessage = deleteMessage)
+            },
+            color = Color.Red
+          )
+        }
+      }
+
+      @Composable fun CallItem(status: CICallStatus, duration: Int) {
+        CICallItemView(cInfo, cItem, status, duration, acceptCall)
+      }
+
+      when (val c = cItem.content) {
+        is CIContent.SndMsgContent -> ContentItem()
+        is CIContent.RcvMsgContent -> ContentItem()
+        is CIContent.SndDeleted -> DeletedItem()
+        is CIContent.RcvDeleted -> DeletedItem()
+        is CIContent.SndCall -> CallItem(c.status, c.duration)
+        is CIContent.RcvCall -> CallItem(c.status, c.duration)
+        is CIContent.RcvIntegrityError -> IntegrityErrorItemView(cItem, showMember = showMember)
+        is CIContent.RcvGroupInvitation -> CIGroupInvitationView(cItem, c.groupInvitation, c.memberRole, joinGroup = joinGroup)
+        is CIContent.SndGroupInvitation -> CIGroupInvitationView(cItem, c.groupInvitation, c.memberRole, joinGroup = joinGroup)
+        is CIContent.RcvGroupEventContent -> CIGroupEventView(cItem)
+        is CIContent.SndGroupEventContent -> CIGroupEventView(cItem)
+      }
+    }
+  }
+}
+
+@Composable
+fun ItemAction(text: String, icon: ImageVector, onClick: () -> Unit, color: Color = MaterialTheme.colors.onBackground) {
+  DropdownMenuItem(onClick) {
+    Row {
+      Text(
+        text,
+        modifier = Modifier
+          .fillMaxWidth()
+          .weight(1F)
+          .padding(end = 15.dp),
+        color = color
+      )
+      Icon(icon, text, tint = color)
+    }
+  }
+}
+
+fun deleteMessageAlertDialog(chatItem: ChatItem, deleteMessage: (Long, CIDeleteMode) -> Unit) {
+  AlertManager.shared.showAlertDialogButtons(
+    title = generalGetString(R.string.delete_message__question),
+    text = generalGetString(R.string.delete_message_cannot_be_undone_warning),
+    buttons = {
+      Row(
+        Modifier
+          .fillMaxWidth()
+          .padding(horizontal = 8.dp, vertical = 2.dp),
+        horizontalArrangement = Arrangement.End,
+      ) {
+        Button(onClick = {
+          deleteMessage(chatItem.id, CIDeleteMode.cidmInternal)
+          AlertManager.shared.hideAlert()
+        }) { Text(stringResource(R.string.for_me_only)) }
+        if (chatItem.meta.editable) {
+          Spacer(Modifier.padding(horizontal = 4.dp))
+          Button(onClick = {
+            deleteMessage(chatItem.id, CIDeleteMode.cidmBroadcast)
+            AlertManager.shared.hideAlert()
+          }) { Text(stringResource(R.string.for_everybody)) }
+        }
+      }
+    }
+  )
+}
+
+@Preview
+@Composable
+fun PreviewChatItemView() {
+  SimpleXTheme {
+    ChatItemView(
+      User.sampleData,
+      ChatInfo.Direct.sampleData,
+      ChatItem.getSampleData(
+        1, CIDirection.DirectSnd(), Clock.System.now(), "hello"
+      ),
+      useLinkPreviews = true,
+      composeState = remember { mutableStateOf(ComposeState(useLinkPreviews = true)) },
+      cxt = LocalContext.current,
+      deleteMessage = { _, _ -> },
+      receiveFile = {},
+      joinGroup = {},
+      acceptCall = { _ -> }
+    )
+  }
+}
+
+@Preview
+@Composable
+fun PreviewChatItemViewDeletedContent() {
+  SimpleXTheme {
+    ChatItemView(
+      User.sampleData,
+      ChatInfo.Direct.sampleData,
+      ChatItem.getDeletedContentSampleData(),
+      useLinkPreviews = true,
+      composeState = remember { mutableStateOf(ComposeState(useLinkPreviews = true)) },
+      cxt = LocalContext.current,
+      deleteMessage = { _, _ -> },
+      receiveFile = {},
+      joinGroup = {},
+      acceptCall = { _ -> }
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/item/DeletedItemView.kt

@@ -0,0 +1,55 @@
+package chat.simplex.app.views.chat.item
+
+import android.content.res.Configuration
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.*
+import androidx.compose.ui.text.font.FontStyle
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.model.ChatItem
+import chat.simplex.app.ui.theme.HighOrLowlight
+import chat.simplex.app.ui.theme.SimpleXTheme
+
+@Composable
+fun DeletedItemView(ci: ChatItem, showMember: Boolean = false) {
+  Surface(
+    shape = RoundedCornerShape(18.dp),
+    color = ReceivedColorLight,
+  ) {
+    Row(
+      Modifier.padding(horizontal = 12.dp, vertical = 6.dp),
+      verticalAlignment = Alignment.Bottom
+    ) {
+      Text(
+        buildAnnotatedString {
+          appendSender(this, if (showMember) ci.memberDisplayName else null, true)
+          withStyle(SpanStyle(fontStyle = FontStyle.Italic, color = HighOrLowlight)) { append(ci.content.text) }
+        },
+        style = MaterialTheme.typography.body1.copy(lineHeight = 22.sp),
+        modifier = Modifier.padding(end = 8.dp)
+      )
+      CIMetaView(ci)
+    }
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewDeletedItemView() {
+  SimpleXTheme {
+    DeletedItemView(
+      ChatItem.getDeletedContentSampleData()
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/item/EmojiItemView.kt

@@ -0,0 +1,42 @@
+package chat.simplex.app.views.chat.item
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.model.ChatItem
+
+val largeEmojiFont: TextStyle = TextStyle(fontSize = 48.sp)
+val mediumEmojiFont: TextStyle = TextStyle(fontSize = 36.sp)
+
+@Composable
+fun EmojiItemView(chatItem: ChatItem) {
+  Column(
+    Modifier.padding(vertical = 8.dp, horizontal = 12.dp),
+    horizontalAlignment = Alignment.CenterHorizontally
+  ) {
+    EmojiText(chatItem.content.text)
+    CIMetaView(chatItem)
+  }
+}
+
+@Composable
+fun EmojiText(text: String) {
+  val s = text.trim()
+  Text(s, style = if (s.codePoints().count() < 4) largeEmojiFont else mediumEmojiFont)
+}
+
+private fun isSimpleEmoji(c: Int): Boolean = c > 0x238C
+
+fun isEmoji(c: Int): Boolean = isSimpleEmoji(c) // || isCombinedIntoEmoji(c)
+
+// TODO count perceived emojis, possibly using icu4j
+fun isShortEmoji(str: String): Boolean {
+  val s = str.trim()
+  return s.codePoints().count() in 1..5 && s.codePoints().allMatch(::isEmoji)
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/item/ImageFullScreenView.kt

@@ -0,0 +1,55 @@
+import android.graphics.Bitmap
+import androidx.activity.compose.BackHandler
+import androidx.compose.foundation.*
+import androidx.compose.foundation.gestures.detectTransformGestures
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.*
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.res.stringResource
+import chat.simplex.app.R
+
+@Composable
+fun ImageFullScreenView(imageBitmap: Bitmap, close: () -> Unit) {
+  BackHandler(onBack = close)
+  Column(
+    Modifier
+      .fillMaxSize()
+      .background(Color.Black)
+      .clickable(onClick = close)
+  ) {
+    var scale by remember { mutableStateOf(1f) }
+    var translationX by remember { mutableStateOf(0f) }
+    var translationY by remember { mutableStateOf(0f) }
+    Image(
+      imageBitmap.asImageBitmap(),
+      contentDescription = stringResource(R.string.image_descr),
+      contentScale = ContentScale.Fit,
+      modifier = Modifier
+        .graphicsLayer(
+          scaleX = scale,
+          scaleY = scale,
+          translationX = translationX,
+          translationY = translationY,
+        )
+        .pointerInput(Unit) {
+          detectTransformGestures(
+            onGesture = { _, pan, gestureZoom, _ ->
+              scale = (scale * gestureZoom).coerceIn(1f, 20f)
+              if (scale > 1) {
+                translationX += pan.x * scale
+                translationY += pan.y * scale
+              } else {
+                translationX = 0f
+                translationY = 0f
+              }
+            }
+          )
+        }
+        .fillMaxSize(),
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/item/IntegrityErrorItemView.kt

@@ -0,0 +1,65 @@
+package chat.simplex.app.views.chat.item
+
+import android.content.res.Configuration
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.*
+import androidx.compose.ui.text.font.FontStyle
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+import chat.simplex.app.model.ChatItem
+import chat.simplex.app.ui.theme.SimpleXTheme
+import chat.simplex.app.views.helpers.AlertManager
+import chat.simplex.app.views.helpers.generalGetString
+
+@Composable
+fun IntegrityErrorItemView(ci: ChatItem, showMember: Boolean = false) {
+  Surface(
+    Modifier.clickable(onClick = {
+      AlertManager.shared.showAlertMsg(
+        title = generalGetString(R.string.alert_title_skipped_messages),
+        text = generalGetString(R.string.alert_text_skipped_messages_it_can_happen_when)
+      )
+    }),
+    shape = RoundedCornerShape(18.dp),
+    color = ReceivedColorLight,
+  ) {
+    Row(
+      Modifier.padding(horizontal = 12.dp, vertical = 6.dp),
+      verticalAlignment = Alignment.Bottom
+    ) {
+      Text(
+        buildAnnotatedString {
+          appendSender(this, if (showMember) ci.memberDisplayName else null, true)
+          withStyle(SpanStyle(fontStyle = FontStyle.Italic, color = Color.Red)) { append(ci.content.text) }
+        },
+        style = MaterialTheme.typography.body1.copy(lineHeight = 22.sp),
+        modifier = Modifier.padding(end = 8.dp)
+      )
+      CIMetaView(ci)
+    }
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  name = "Dark Mode"
+)
+@Composable
+fun IntegrityErrorItemViewPreview() {
+  SimpleXTheme {
+    IntegrityErrorItemView(
+      ChatItem.getDeletedContentSampleData()
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chat/item/TextItemView.kt

@@ -0,0 +1,150 @@
+package chat.simplex.app.views.chat.item
+
+import androidx.compose.foundation.text.*
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Text
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.platform.UriHandler
+import androidx.compose.ui.text.*
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.*
+import chat.simplex.app.model.*
+import chat.simplex.app.views.helpers.detectGesture
+
+val reserveTimestampStyle = SpanStyle(color = Color.Transparent)
+val boldFont = SpanStyle(fontWeight = FontWeight.Medium)
+
+fun appendGroupMember(b: AnnotatedString.Builder, chatItem: ChatItem, groupMemberBold: Boolean) {
+  if (chatItem.chatDir is CIDirection.GroupRcv) {
+    val name = chatItem.chatDir.groupMember.memberProfile.displayName
+    if (groupMemberBold) b.withStyle(boldFont) { append(name) }
+    else b.append(name)
+    b.append(": ")
+  }
+}
+
+fun appendSender(b: AnnotatedString.Builder, sender: String?, senderBold: Boolean) {
+  if (sender != null) {
+    if (senderBold) b.withStyle(boldFont) { append(sender) }
+    else b.append(sender)
+    b.append(": ")
+  }
+}
+
+@Composable
+fun MarkdownText (
+  text: String,
+  formattedText: List<FormattedText>? = null,
+  sender: String? = null,
+  metaText: String? = null,
+  edited: Boolean = false,
+  style: TextStyle = MaterialTheme.typography.body1.copy(color = MaterialTheme.colors.onSurface, lineHeight = 22.sp),
+  maxLines: Int = Int.MAX_VALUE,
+  overflow: TextOverflow = TextOverflow.Clip,
+  uriHandler: UriHandler? = null,
+  senderBold: Boolean = false,
+  modifier: Modifier = Modifier,
+  onLinkLongClick: (link: String) -> Unit = {}
+) {
+  val reserve = if (edited) "        " else "    "
+  if (formattedText == null) {
+    val annotatedText = buildAnnotatedString {
+      appendSender(this, sender, senderBold)
+      append(text)
+      if (metaText != null) withStyle(reserveTimestampStyle) { append(reserve + metaText) }
+    }
+    Text(annotatedText, style = style, modifier = modifier, maxLines = maxLines, overflow = overflow)
+  } else {
+    var hasLinks = false
+    val annotatedText = buildAnnotatedString {
+      appendSender(this, sender, senderBold)
+      for (ft in formattedText) {
+        if (ft.format == null) append(ft.text)
+        else {
+          val link = ft.link
+          if (link != null) {
+            hasLinks = true
+            val ftStyle = ft.format.style
+            withAnnotation(tag = "URL", annotation = link) {
+              withStyle(ftStyle) { append(ft.text) }
+            }
+          } else {
+            withStyle(ft.format.style) { append(ft.text) }
+          }
+        }
+      }
+      if (metaText != null) withStyle(reserveTimestampStyle) { append(reserve + metaText) }
+    }
+    if (hasLinks && uriHandler != null) {
+      ClickableText(annotatedText, style = style, modifier = modifier, maxLines = maxLines, overflow = overflow,
+        onLongClick = { offset ->
+          annotatedText.getStringAnnotations(tag = "URL", start = offset, end = offset)
+            .firstOrNull()?.let { annotation -> onLinkLongClick(annotation.item) }
+        },
+        onClick = { offset ->
+          annotatedText.getStringAnnotations(tag = "URL", start = offset, end = offset)
+            .firstOrNull()?.let { annotation -> uriHandler.openUri(annotation.item) }
+        },
+        shouldConsumeEvent = { offset ->
+          annotatedText.getStringAnnotations(tag = "URL", start = offset, end = offset).any()
+        }
+      )
+    } else {
+      Text(annotatedText, style = style, modifier = modifier, maxLines = maxLines, overflow = overflow)
+    }
+  }
+}
+
+@Composable
+fun ClickableText(
+  text: AnnotatedString,
+  modifier: Modifier = Modifier,
+  style: TextStyle = TextStyle.Default,
+  softWrap: Boolean = true,
+  overflow: TextOverflow = TextOverflow.Clip,
+  maxLines: Int = Int.MAX_VALUE,
+  onTextLayout: (TextLayoutResult) -> Unit = {},
+  onClick: (Int) -> Unit,
+  onLongClick: (Int) -> Unit = {},
+  shouldConsumeEvent: (Int) -> Boolean
+) {
+  val layoutResult = remember { mutableStateOf<TextLayoutResult?>(null) }
+  val pressIndicator = Modifier.pointerInput(onClick, onLongClick) {
+    detectGesture(onLongPress = { pos ->
+      layoutResult.value?.let { layoutResult ->
+        onLongClick(layoutResult.getOffsetForPosition(pos))
+      }
+    }, onPress = { pos ->
+      layoutResult.value?.let { layoutResult ->
+        val res  = tryAwaitRelease()
+        if (res) {
+          onClick(layoutResult.getOffsetForPosition(pos))
+        }
+      }
+    }, shouldConsumeEvent = { pos ->
+      var consume = false
+        layoutResult.value?.let { layoutResult ->
+          consume = shouldConsumeEvent(layoutResult.getOffsetForPosition(pos))
+        }
+      consume
+      }
+    )
+  }
+
+  BasicText(
+    text = text,
+    modifier = modifier.then(pressIndicator),
+    style = style,
+    softWrap = softWrap,
+    overflow = overflow,
+    maxLines = maxLines,
+    onTextLayout = {
+      layoutResult.value = it
+      onTextLayout(it)
+    }
+  )
+}

apps/android/app/src/main/java/chat/simplex/app/views/chatlist/ChatHelpView.kt

@@ -0,0 +1,93 @@
+package chat.simplex.app.views.chatlist
+
+import android.content.res.Configuration
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.PersonAdd
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalUriHandler
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.SpanStyle
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+import chat.simplex.app.ui.theme.SimpleXTheme
+import chat.simplex.app.views.helpers.annotatedStringResource
+import chat.simplex.app.views.usersettings.simplexTeamUri
+
+val bold = SpanStyle(fontWeight = FontWeight.Bold)
+
+@Composable
+fun ChatHelpView(addContact: (() -> Unit)? = null) {
+  Column(
+    horizontalAlignment = Alignment.Start,
+    verticalArrangement = Arrangement.spacedBy(10.dp)
+  ) {
+    val uriHandler = LocalUriHandler.current
+
+    Text(stringResource(R.string.thank_you_for_installing_simplex), lineHeight = 22.sp)
+    Text(
+      annotatedStringResource(R.string.you_can_connect_to_simplex_chat_founder),
+      modifier = Modifier.clickable(onClick = {
+        uriHandler.openUri(simplexTeamUri)
+      }),
+      lineHeight = 22.sp
+    )
+
+    Column(
+      Modifier.padding(top = 24.dp),
+      horizontalAlignment = Alignment.Start,
+      verticalArrangement = Arrangement.spacedBy(10.dp)
+    ) {
+      Text(
+        stringResource(R.string.to_start_a_new_chat_help_header),
+        style = MaterialTheme.typography.h2,
+        lineHeight = 22.sp
+      )
+      Row(
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.spacedBy(8.dp)
+      ) {
+        Text(stringResource(R.string.chat_help_tap_button))
+        Icon(
+          Icons.Outlined.PersonAdd,
+          stringResource(R.string.add_contact),
+          modifier = if (addContact != null) Modifier.clickable(onClick = addContact) else Modifier,
+        )
+        Text(stringResource(R.string.above_then_preposition_continuation))
+      }
+      Text(annotatedStringResource(R.string.add_new_contact_to_create_one_time_QR_code), lineHeight = 22.sp)
+      Text(annotatedStringResource(R.string.scan_QR_code_to_connect_to_contact_who_shows_QR_code), lineHeight = 22.sp)
+    }
+
+    Column(
+      Modifier.padding(top = 24.dp),
+      horizontalAlignment = Alignment.Start,
+      verticalArrangement = Arrangement.spacedBy(10.dp)
+    ) {
+      Text(stringResource(R.string.to_connect_via_link_title), style = MaterialTheme.typography.h2)
+      Text(stringResource(R.string.if_you_received_simplex_invitation_link_you_can_open_in_browser), lineHeight = 22.sp)
+      Text(annotatedStringResource(R.string.desktop_scan_QR_code_from_app_via_scan_QR_code), lineHeight = 22.sp)
+      Text(annotatedStringResource(R.string.mobile_tap_open_in_mobile_app_then_tap_connect_in_app), lineHeight = 22.sp)
+    }
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewChatHelpLayout() {
+  SimpleXTheme {
+    ChatHelpView {}
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chatlist/ChatListNavLinkView.kt

@@ -0,0 +1,527 @@
+package chat.simplex.app.views.chatlist
+
+import android.content.res.Configuration
+import androidx.compose.foundation.combinedClickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.SimpleXTheme
+import chat.simplex.app.ui.theme.WarningOrange
+import chat.simplex.app.views.chat.*
+import chat.simplex.app.views.chat.group.deleteGroupDialog
+import chat.simplex.app.views.chat.group.leaveGroupDialog
+import chat.simplex.app.views.chat.item.ItemAction
+import chat.simplex.app.views.helpers.*
+import kotlinx.coroutines.delay
+import kotlinx.datetime.Clock
+
+@Composable
+fun ChatListNavLinkView(chat: Chat, chatModel: ChatModel) {
+  val showMenu = remember { mutableStateOf(false) }
+  var showMarkRead by remember { mutableStateOf(false) }
+  val stopped = chatModel.chatRunning.value == false
+  LaunchedEffect(chat.id, chat.chatStats.unreadCount > 0) {
+    showMenu.value = false
+    delay(500L)
+    showMarkRead = chat.chatStats.unreadCount > 0
+  }
+  when (chat.chatInfo) {
+    is ChatInfo.Direct ->
+      ChatListNavLinkLayout(
+        chatLinkPreview = { ChatPreviewView(chat, stopped) },
+        click = { directChatAction(chat.chatInfo, chatModel) },
+        dropdownMenuItems = { ContactMenuItems(chat, chatModel, showMenu, showMarkRead) },
+        showMenu,
+        stopped
+      )
+    is ChatInfo.Group ->
+      ChatListNavLinkLayout(
+        chatLinkPreview = { ChatPreviewView(chat, stopped) },
+        click = { groupChatAction(chat.chatInfo.groupInfo, chatModel) },
+        dropdownMenuItems = { GroupMenuItems(chat, chat.chatInfo.groupInfo, chatModel, showMenu, showMarkRead) },
+        showMenu,
+        stopped
+      )
+    is ChatInfo.ContactRequest ->
+      ChatListNavLinkLayout(
+        chatLinkPreview = { ContactRequestView(chat.chatInfo) },
+        click = { contactRequestAlertDialog(chat.chatInfo, chatModel) },
+        dropdownMenuItems = { ContactRequestMenuItems(chat.chatInfo, chatModel, showMenu) },
+        showMenu,
+        stopped
+      )
+    is ChatInfo.ContactConnection ->
+      ChatListNavLinkLayout(
+        chatLinkPreview = { ContactConnectionView(chat.chatInfo.contactConnection) },
+        click = { contactConnectionAlertDialog(chat.chatInfo.contactConnection, chatModel) },
+        dropdownMenuItems = { ContactConnectionMenuItems(chat.chatInfo, chatModel, showMenu) },
+        showMenu,
+        stopped
+      )
+  }
+}
+
+fun directChatAction(chatInfo: ChatInfo, chatModel: ChatModel) {
+  if (chatInfo.ready) {
+    withApi { openChat(chatInfo, chatModel) }
+  } else {
+    pendingContactAlertDialog(chatInfo, chatModel)
+  }
+}
+
+fun groupChatAction(groupInfo: GroupInfo, chatModel: ChatModel) {
+  when (groupInfo.membership.memberStatus) {
+    GroupMemberStatus.MemInvited -> acceptGroupInvitationAlertDialog(groupInfo, chatModel)
+    GroupMemberStatus.MemAccepted -> groupInvitationAcceptedAlert()
+    else -> withApi { openChat(ChatInfo.Group(groupInfo), chatModel) }
+  }
+}
+
+suspend fun openChat(chatInfo: ChatInfo, chatModel: ChatModel) {
+  val chat = chatModel.controller.apiGetChat(chatInfo.chatType, chatInfo.apiId)
+  if (chat != null) {
+    chatModel.chatItems.clear()
+    chatModel.chatItems.addAll(chat.chatItems)
+    chatModel.chatId.value = chatInfo.id
+  }
+}
+
+suspend fun apiLoadPrevMessages(chatInfo: ChatInfo, chatModel: ChatModel, beforeChatItemId: Long, search: String) {
+  val pagination = ChatPagination.Before(beforeChatItemId, ChatPagination.PRELOAD_COUNT)
+  val chat = chatModel.controller.apiGetChat(chatInfo.chatType, chatInfo.apiId, pagination, search) ?: return
+  chatModel.chatItems.addAll(0, chat.chatItems)
+}
+
+suspend fun apiFindMessages(chatInfo: ChatInfo, chatModel: ChatModel, search: String) {
+  val chat = chatModel.controller.apiGetChat(chatInfo.chatType, chatInfo.apiId, search = search) ?: return
+  chatModel.chatItems.clear()
+  chatModel.chatItems.addAll(0, chat.chatItems)
+}
+
+suspend fun setGroupMembers(groupInfo: GroupInfo, chatModel: ChatModel) {
+  val groupMembers = chatModel.controller.apiListMembers(groupInfo.groupId)
+  chatModel.groupMembers.clear()
+  chatModel.groupMembers.addAll(groupMembers)
+}
+
+@Composable
+fun ContactMenuItems(chat: Chat, chatModel: ChatModel, showMenu: MutableState<Boolean>, showMarkRead: Boolean) {
+  if (showMarkRead) {
+    MarkReadChatAction(chat, chatModel, showMenu)
+  }
+  ClearChatAction(chat, chatModel, showMenu)
+  DeleteContactAction(chat, chatModel, showMenu)
+}
+
+@Composable
+fun GroupMenuItems(chat: Chat, groupInfo: GroupInfo, chatModel: ChatModel, showMenu: MutableState<Boolean>, showMarkRead: Boolean) {
+  when (groupInfo.membership.memberStatus) {
+    GroupMemberStatus.MemInvited -> {
+      JoinGroupAction(groupInfo, chatModel, showMenu)
+      if (groupInfo.canDelete) {
+        DeleteGroupAction(chat, chatModel, showMenu)
+      }
+    }
+    else -> {
+      if (showMarkRead) {
+        MarkReadChatAction(chat, chatModel, showMenu)
+      }
+      ClearChatAction(chat, chatModel, showMenu)
+      if (groupInfo.membership.memberCurrent) {
+        LeaveGroupAction(groupInfo, chatModel, showMenu)
+      }
+      if (groupInfo.canDelete) {
+        DeleteGroupAction(chat, chatModel, showMenu)
+      }
+    }
+  }
+}
+
+@Composable
+fun MarkReadChatAction(chat: Chat, chatModel: ChatModel, showMenu: MutableState<Boolean>) {
+  ItemAction(
+    stringResource(R.string.mark_read),
+    Icons.Outlined.Check,
+    onClick = {
+      markChatRead(chat, chatModel)
+      chatModel.controller.ntfManager.cancelNotificationsForChat(chat.id)
+      showMenu.value = false
+    }
+  )
+}
+
+@Composable
+fun ClearChatAction(chat: Chat, chatModel: ChatModel, showMenu: MutableState<Boolean>) {
+  ItemAction(
+    stringResource(R.string.clear_verb),
+    Icons.Outlined.Restore,
+    onClick = {
+      clearChatDialog(chat.chatInfo, chatModel)
+      showMenu.value = false
+    },
+    color = WarningOrange
+  )
+}
+
+@Composable
+fun DeleteContactAction(chat: Chat, chatModel: ChatModel, showMenu: MutableState<Boolean>) {
+  ItemAction(
+    stringResource(R.string.delete_verb),
+    Icons.Outlined.Delete,
+    onClick = {
+      deleteContactDialog(chat.chatInfo, chatModel)
+      showMenu.value = false
+    },
+    color = Color.Red
+  )
+}
+
+@Composable
+fun DeleteGroupAction(chat: Chat, chatModel: ChatModel, showMenu: MutableState<Boolean>) {
+  ItemAction(
+    stringResource(R.string.delete_verb),
+    Icons.Outlined.Delete,
+    onClick = {
+      deleteGroupDialog(chat.chatInfo, chatModel)
+      showMenu.value = false
+    },
+    color = Color.Red
+  )
+}
+
+@Composable
+fun JoinGroupAction(groupInfo: GroupInfo, chatModel: ChatModel, showMenu: MutableState<Boolean>) {
+  ItemAction(
+    stringResource(R.string.join_group_button),
+    Icons.Outlined.Login,
+    onClick = {
+      withApi { chatModel.controller.apiJoinGroup(groupInfo.groupId) }
+      showMenu.value = false
+    }
+  )
+}
+
+@Composable
+fun LeaveGroupAction(groupInfo: GroupInfo, chatModel: ChatModel, showMenu: MutableState<Boolean>) {
+  ItemAction(
+    stringResource(R.string.leave_group_button),
+    Icons.Outlined.Logout,
+    onClick = {
+      leaveGroupDialog(groupInfo, chatModel)
+      showMenu.value = false
+    },
+    color = Color.Red
+  )
+}
+
+@Composable
+fun ContactRequestMenuItems(chatInfo: ChatInfo.ContactRequest, chatModel: ChatModel, showMenu: MutableState<Boolean>) {
+  ItemAction(
+    stringResource(R.string.accept_contact_button),
+    Icons.Outlined.Check,
+    onClick = {
+      acceptContactRequest(chatInfo, chatModel)
+      showMenu.value = false
+    }
+  )
+  ItemAction(
+    stringResource(R.string.reject_contact_button),
+    Icons.Outlined.Close,
+    onClick = {
+      rejectContactRequest(chatInfo, chatModel)
+      showMenu.value = false
+    },
+    color = Color.Red
+  )
+}
+
+@Composable
+fun ContactConnectionMenuItems(chatInfo: ChatInfo.ContactConnection, chatModel: ChatModel, showMenu: MutableState<Boolean>) {
+  ItemAction(
+    stringResource(R.string.delete_verb),
+    Icons.Outlined.Delete,
+    onClick = {
+      deleteContactConnectionAlert(chatInfo.contactConnection, chatModel)
+      showMenu.value = false
+    },
+    color = Color.Red
+  )
+}
+
+fun markChatRead(chat: Chat, chatModel: ChatModel) {
+  // Just to be sure
+  if (chat.chatStats.unreadCount == 0) return
+
+  val minUnreadItemId = chat.chatStats.minUnreadItemId
+  chatModel.markChatItemsRead(chat.chatInfo)
+  withApi {
+    chatModel.controller.apiChatRead(
+      chat.chatInfo.chatType,
+      chat.chatInfo.apiId,
+      CC.ItemRange(minUnreadItemId, chat.chatItems.last().id)
+    )
+  }
+}
+
+fun contactRequestAlertDialog(contactRequest: ChatInfo.ContactRequest, chatModel: ChatModel) {
+  AlertManager.shared.showAlertDialog(
+    title = generalGetString(R.string.accept_connection_request__question),
+    text = generalGetString(R.string.if_you_choose_to_reject_the_sender_will_not_be_notified),
+    confirmText = generalGetString(R.string.accept_contact_button),
+    onConfirm = { acceptContactRequest(contactRequest, chatModel) },
+    dismissText = generalGetString(R.string.reject_contact_button),
+    onDismiss = { rejectContactRequest(contactRequest, chatModel) }
+  )
+}
+
+fun acceptContactRequest(contactRequest: ChatInfo.ContactRequest, chatModel: ChatModel) {
+  withApi {
+    val contact = chatModel.controller.apiAcceptContactRequest(contactRequest.apiId)
+    if (contact != null) {
+      val chat = Chat(ChatInfo.Direct(contact), listOf())
+      chatModel.replaceChat(contactRequest.id, chat)
+    }
+  }
+}
+
+fun rejectContactRequest(contactRequest: ChatInfo.ContactRequest, chatModel: ChatModel) {
+  withApi {
+    chatModel.controller.apiRejectContactRequest(contactRequest.apiId)
+    chatModel.removeChat(contactRequest.id)
+  }
+}
+
+fun contactConnectionAlertDialog(connection: PendingContactConnection, chatModel: ChatModel) {
+  AlertManager.shared.showAlertDialogButtons(
+    title = generalGetString(
+      if (connection.initiated) R.string.you_invited_your_contact
+      else R.string.you_accepted_connection
+    ),
+    text = generalGetString(
+      if (connection.viaContactUri) R.string.you_will_be_connected_when_your_connection_request_is_accepted
+      else R.string.you_will_be_connected_when_your_contacts_device_is_online
+    ),
+    buttons = {
+      Row(
+        Modifier
+          .fillMaxWidth()
+          .padding(horizontal = 8.dp, vertical = 2.dp),
+        horizontalArrangement = Arrangement.End,
+      ) {
+        Button(onClick = {
+          AlertManager.shared.hideAlert()
+          deleteContactConnectionAlert(connection, chatModel)
+        }) {
+          Text(stringResource(R.string.delete_verb))
+        }
+        Spacer(Modifier.padding(horizontal = 4.dp))
+        Button(onClick = { AlertManager.shared.hideAlert() }) {
+          Text(stringResource(R.string.ok))
+        }
+      }
+    }
+  )
+}
+
+fun deleteContactConnectionAlert(connection: PendingContactConnection, chatModel: ChatModel) {
+  AlertManager.shared.showAlertDialog(
+    title = generalGetString(R.string.delete_pending_connection__question),
+    text = generalGetString(
+      if (connection.initiated) R.string.contact_you_shared_link_with_wont_be_able_to_connect
+      else R.string.connection_you_accepted_will_be_cancelled
+    ),
+    confirmText = generalGetString(R.string.delete_verb),
+    onConfirm = {
+      withApi {
+        AlertManager.shared.hideAlert()
+        if (chatModel.controller.apiDeleteChat(ChatType.ContactConnection, connection.apiId)) {
+          chatModel.removeChat(connection.id)
+        }
+      }
+    }
+  )
+}
+
+fun pendingContactAlertDialog(chatInfo: ChatInfo, chatModel: ChatModel) {
+  AlertManager.shared.showAlertDialog(
+    title = generalGetString(R.string.alert_title_contact_connection_pending),
+    text = generalGetString(R.string.alert_text_connection_pending_they_need_to_be_online_can_delete_and_retry),
+    confirmText = generalGetString(R.string.button_delete_contact),
+    onConfirm = {
+      withApi {
+        val r = chatModel.controller.apiDeleteChat(chatInfo.chatType, chatInfo.apiId)
+        if (r) {
+          chatModel.removeChat(chatInfo.id)
+          chatModel.chatId.value = null
+        }
+      }
+    },
+    dismissText = generalGetString(R.string.cancel_verb),
+  )
+}
+
+fun acceptGroupInvitationAlertDialog(groupInfo: GroupInfo, chatModel: ChatModel) {
+  AlertManager.shared.showAlertDialog(
+    title = generalGetString(R.string.join_group_question),
+    text = generalGetString(R.string.you_are_invited_to_group_join_to_connect_with_group_members),
+    confirmText = generalGetString(R.string.join_group_button),
+    onConfirm = { withApi { chatModel.controller.apiJoinGroup(groupInfo.groupId) } },
+    dismissText = generalGetString(R.string.delete_verb),
+    onDismiss = { deleteGroup(groupInfo, chatModel) }
+  )
+}
+
+fun deleteGroup(groupInfo: GroupInfo, chatModel: ChatModel) {
+  withApi {
+    val r = chatModel.controller.apiDeleteChat(ChatType.Group, groupInfo.apiId)
+    if (r) {
+      chatModel.removeChat(groupInfo.id)
+      chatModel.chatId.value = null
+      chatModel.controller.ntfManager.cancelNotificationsForChat(groupInfo.id)
+    }
+  }
+}
+
+fun groupInvitationAcceptedAlert() {
+  AlertManager.shared.showAlertMsg(
+    generalGetString(R.string.joining_group),
+    generalGetString(R.string.youve_accepted_group_invitation_connecting_to_inviting_group_member)
+  )
+}
+
+@Composable
+fun ChatListNavLinkLayout(
+  chatLinkPreview: @Composable () -> Unit,
+  click: () -> Unit,
+  dropdownMenuItems: (@Composable () -> Unit)?,
+  showMenu: MutableState<Boolean>,
+  stopped: Boolean
+) {
+  var modifier = Modifier.fillMaxWidth().height(88.dp)
+  if (!stopped) modifier = modifier.combinedClickable(onClick = click, onLongClick = { showMenu.value = true })
+  Surface(modifier) {
+    Row(
+      modifier = Modifier
+        .fillMaxWidth()
+        .padding(vertical = 8.dp)
+        .padding(start = 8.dp)
+        .padding(end = 12.dp),
+      verticalAlignment = Alignment.Top
+    ) {
+      chatLinkPreview()
+    }
+    if (dropdownMenuItems != null) {
+      Box(Modifier.padding(horizontal = 16.dp)) {
+        DropdownMenu(
+          expanded = showMenu.value,
+          onDismissRequest = { showMenu.value = false },
+          Modifier.width(220.dp)
+        ) {
+          dropdownMenuItems()
+        }
+      }
+    }
+  }
+  Divider(Modifier.padding(horizontal = 8.dp))
+}
+
+@Preview
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewChatListNavLinkDirect() {
+  SimpleXTheme {
+    ChatListNavLinkLayout(
+      chatLinkPreview = {
+        ChatPreviewView(
+          chat = Chat(
+            chatInfo = ChatInfo.Direct.sampleData,
+            chatItems = listOf(
+              ChatItem.getSampleData(
+                1,
+                CIDirection.DirectSnd(),
+                Clock.System.now(),
+                "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat."
+              )
+            ),
+            chatStats = Chat.ChatStats()
+          ),
+          stopped = false
+        )
+      },
+      click = {},
+      dropdownMenuItems = null,
+      showMenu = remember { mutableStateOf(false) },
+      stopped = false
+    )
+  }
+}
+
+@Preview
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewChatListNavLinkGroup() {
+  SimpleXTheme {
+    ChatListNavLinkLayout(
+      chatLinkPreview = {
+        ChatPreviewView(
+          Chat(
+            chatInfo = ChatInfo.Group.sampleData,
+            chatItems = listOf(
+              ChatItem.getSampleData(
+                1,
+                CIDirection.DirectSnd(),
+                Clock.System.now(),
+                "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat."
+              )
+            ),
+            chatStats = Chat.ChatStats()
+          ),
+          stopped = false
+        )
+      },
+      click = {},
+      dropdownMenuItems = null,
+      showMenu = remember { mutableStateOf(false) },
+      stopped = false
+    )
+  }
+}
+
+@Preview
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewChatListNavLinkContactRequest() {
+  SimpleXTheme {
+    ChatListNavLinkLayout(
+      chatLinkPreview = {
+        ContactRequestView(ChatInfo.ContactRequest.sampleData)
+      },
+      click = {},
+      dropdownMenuItems = null,
+      showMenu = remember { mutableStateOf(false) },
+      stopped = false
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chatlist/ChatListView.kt

@@ -0,0 +1,151 @@
+package chat.simplex.app.views.chatlist
+
+import androidx.compose.foundation.*
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Report
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.model.ChatModel
+import chat.simplex.app.views.helpers.*
+import chat.simplex.app.views.newchat.NewChatSheet
+import chat.simplex.app.views.onboarding.MakeConnection
+import chat.simplex.app.views.usersettings.SettingsView
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.launch
+
+class ScaffoldController(val scope: CoroutineScope) {
+  lateinit var state: BottomSheetScaffoldState
+  val expanded = mutableStateOf(false)
+
+  fun expand() {
+    expanded.value = true
+    scope.launch { state.bottomSheetState.expand() }
+  }
+
+  fun collapse() {
+    expanded.value = false
+    scope.launch { state.bottomSheetState.collapse() }
+  }
+
+  fun toggleSheet() {
+    if (state.bottomSheetState.isExpanded) collapse() else expand()
+  }
+
+  fun toggleDrawer() = scope.launch {
+    state.drawerState.apply { if (isClosed) open() else close() }
+  }
+}
+
+@Composable
+fun scaffoldController(): ScaffoldController {
+  val ctrl = ScaffoldController(scope = rememberCoroutineScope())
+  val bottomSheetState = rememberBottomSheetState(
+    BottomSheetValue.Collapsed,
+    confirmStateChange = {
+      ctrl.expanded.value = it == BottomSheetValue.Expanded
+      true
+    }
+  )
+  ctrl.state = rememberBottomSheetScaffoldState(bottomSheetState = bottomSheetState)
+  return ctrl
+}
+
+@Composable
+fun ChatListView(chatModel: ChatModel, setPerformLA: (Boolean) -> Unit, stopped: Boolean) {
+  val scaffoldCtrl = scaffoldController()
+  LaunchedEffect(chatModel.clearOverlays.value) {
+    if (chatModel.clearOverlays.value && scaffoldCtrl.expanded.value) scaffoldCtrl.collapse()
+  }
+  BottomSheetScaffold(
+    topBar = { ChatListToolbar(scaffoldCtrl, stopped) },
+    scaffoldState = scaffoldCtrl.state,
+    drawerContent = { SettingsView(chatModel, setPerformLA) },
+    sheetPeekHeight = 0.dp,
+    sheetContent = { NewChatSheet(chatModel, scaffoldCtrl) },
+    sheetShape = RoundedCornerShape(topStart = 18.dp, topEnd = 18.dp),
+  ) {
+    Box {
+      Column(
+        modifier = Modifier
+          .fillMaxSize()
+          .background(MaterialTheme.colors.background)
+      ) {
+        if (chatModel.chats.isNotEmpty()) {
+          ChatList(chatModel)
+        } else {
+          MakeConnection(chatModel)
+        }
+      }
+      if (scaffoldCtrl.expanded.value) {
+        Surface(
+          Modifier
+            .fillMaxSize()
+            .clickable { scaffoldCtrl.collapse() },
+          color = Color.Black.copy(alpha = 0.12F)
+        ) {}
+      }
+    }
+  }
+}
+
+@Composable
+fun ChatListToolbar(scaffoldCtrl: ScaffoldController, stopped: Boolean) {
+  DefaultTopAppBar(
+    navigationButton = { NavigationButtonMenu { scaffoldCtrl.toggleDrawer() } },
+    title = {
+      Text(
+        stringResource(R.string.your_chats),
+        color = MaterialTheme.colors.onBackground,
+        fontWeight = FontWeight.SemiBold,
+      )
+    },
+    onTitleClick = null,
+    showSearch = false,
+    onSearchValueChanged = {},
+    buttons = listOf{
+      if (!stopped) {
+        IconButton(onClick = { scaffoldCtrl.toggleSheet() }) {
+          Icon(
+            Icons.Outlined.AddCircle,
+            stringResource(R.string.add_contact),
+            tint = MaterialTheme.colors.primary,
+            modifier = Modifier.padding(10.dp).size(26.dp)
+          )
+        }
+      } else {
+        IconButton(onClick = { AlertManager.shared.showAlertMsg(generalGetString(R.string.chat_is_stopped_indication),
+          generalGetString(R.string.you_can_start_chat_via_setting_or_by_restarting_the_app)) }) {
+          Icon(
+            Icons.Filled.Report,
+            generalGetString(R.string.chat_is_stopped_indication),
+            tint = Color.Red,
+            modifier = Modifier.padding(10.dp)
+          )
+        }
+      }
+    }
+  )
+  Divider()
+}
+
+@Composable
+fun ChatList(chatModel: ChatModel) {
+  LazyColumn(
+    modifier = Modifier.fillMaxWidth()
+  ) {
+    items(chatModel.chats) { chat ->
+      ChatListNavLinkView(chat, chatModel)
+    }
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chatlist/ChatPreviewView.kt

@@ -0,0 +1,205 @@
+package chat.simplex.app.views.chatlist
+
+import android.content.res.Configuration
+import androidx.compose.foundation.background
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Cancel
+import androidx.compose.material.icons.outlined.ErrorOutline
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.chat.item.MarkdownText
+import chat.simplex.app.views.helpers.ChatInfoImage
+import chat.simplex.app.views.helpers.badgeLayout
+
+@Composable
+fun ChatPreviewView(chat: Chat, stopped: Boolean) {
+  val cInfo = chat.chatInfo
+
+  @Composable
+  fun groupInactiveIcon() {
+    Icon(
+      Icons.Filled.Cancel,
+      stringResource(R.string.icon_descr_group_inactive),
+      Modifier.size(18.dp).background(MaterialTheme.colors.background, CircleShape),
+      tint = HighOrLowlight
+    )
+  }
+
+  @Composable
+  fun chatPreviewImageOverlayIcon() {
+    if (cInfo is ChatInfo.Group) {
+      when (cInfo.groupInfo.membership.memberStatus) {
+        GroupMemberStatus.MemLeft -> groupInactiveIcon()
+        GroupMemberStatus.MemRemoved -> groupInactiveIcon()
+        GroupMemberStatus.MemGroupDeleted -> groupInactiveIcon()
+        else -> {}
+      }
+    }
+  }
+
+  @Composable
+  fun chatPreviewTitleText(color: Color = Color.Unspecified) {
+    Text(
+      cInfo.chatViewName,
+      maxLines = 1,
+      overflow = TextOverflow.Ellipsis,
+      style = MaterialTheme.typography.h3,
+      fontWeight = FontWeight.Bold,
+      color = color
+    )
+  }
+
+  @Composable
+  fun chatPreviewTitle() {
+    when (cInfo) {
+      is ChatInfo.Direct ->
+        chatPreviewTitleText(if (cInfo.ready) Color.Unspecified else HighOrLowlight)
+      is ChatInfo.Group ->
+        when (cInfo.groupInfo.membership.memberStatus) {
+          GroupMemberStatus.MemInvited -> chatPreviewTitleText(MaterialTheme.colors.primary)
+          GroupMemberStatus.MemAccepted -> chatPreviewTitleText(HighOrLowlight)
+          else -> chatPreviewTitleText()
+        }
+      else -> chatPreviewTitleText()
+    }
+  }
+
+  @Composable
+  fun chatPreviewText() {
+    val ci = chat.chatItems.lastOrNull()
+    if (ci != null) {
+      MarkdownText(
+        ci.text, ci.formattedText, ci.memberDisplayName,
+        metaText = ci.timestampText,
+        maxLines = 2,
+        overflow = TextOverflow.Ellipsis,
+        style = MaterialTheme.typography.body1.copy(color = if (isSystemInDarkTheme()) MessagePreviewDark else MessagePreviewLight, lineHeight = 22.sp),
+      )
+    } else {
+      when (cInfo) {
+        is ChatInfo.Direct ->
+          if (!cInfo.ready) {
+            Text(stringResource(R.string.contact_connection_pending), color = HighOrLowlight)
+          }
+        is ChatInfo.Group ->
+          when (cInfo.groupInfo.membership.memberStatus) {
+            GroupMemberStatus.MemInvited -> Text(stringResource(R.string.group_preview_you_are_invited))
+            GroupMemberStatus.MemAccepted -> Text(stringResource(R.string.group_connection_pending), color = HighOrLowlight)
+            else -> {}
+          }
+        else -> {}
+      }
+    }
+  }
+
+  Row {
+    Box(contentAlignment = Alignment.BottomEnd) {
+      ChatInfoImage(cInfo, size = 72.dp)
+      Box(Modifier.padding(end = 6.dp, bottom = 6.dp)) {
+        chatPreviewImageOverlayIcon()
+      }
+    }
+    Column(
+      modifier = Modifier
+        .padding(horizontal = 8.dp)
+        .weight(1F)
+    ) {
+      chatPreviewTitle()
+      chatPreviewText()
+    }
+    val ts = chat.chatItems.lastOrNull()?.timestampText ?: getTimestampText(chat.chatInfo.updatedAt)
+
+    Box(
+      contentAlignment = Alignment.TopEnd
+    ) {
+      Text(
+        ts,
+        color = HighOrLowlight,
+        style = MaterialTheme.typography.body2,
+        modifier = Modifier.padding(bottom = 5.dp)
+      )
+      val n = chat.chatStats.unreadCount
+      if (n > 0) {
+        Box(
+          Modifier.padding(top = 24.dp),
+          contentAlignment = Alignment.Center
+        ) {
+          Text(
+            unreadCountStr(n),
+            color = MaterialTheme.colors.onPrimary,
+            fontSize = 11.sp,
+            modifier = Modifier
+              .background(if (stopped) HighOrLowlight else MaterialTheme.colors.primary, shape = CircleShape)
+              .badgeLayout()
+              .padding(horizontal = 3.dp)
+              .padding(vertical = 1.dp)
+          )
+        }
+      }
+      if (cInfo is ChatInfo.Direct) {
+        Box(
+          Modifier.padding(top = 52.dp),
+          contentAlignment = Alignment.Center
+        ) {
+          ChatStatusImage(chat)
+        }
+      }
+    }
+  }
+}
+
+@Composable
+fun unreadCountStr(n: Int): String {
+  return if (n < 1000) "$n" else "${n / 1000}" + stringResource(R.string.thousand_abbreviation)
+}
+
+@Composable
+fun ChatStatusImage(chat: Chat) {
+  val s = chat.serverInfo.networkStatus
+  val descr = s.statusString
+  if (s is Chat.NetworkStatus.Error) {
+    Icon(
+      Icons.Outlined.ErrorOutline,
+      contentDescription = descr,
+      tint = HighOrLowlight,
+      modifier = Modifier
+        .size(19.dp)
+    )
+  } else if (s !is Chat.NetworkStatus.Connected) {
+    CircularProgressIndicator(
+      Modifier
+        .padding(horizontal = 2.dp)
+        .size(15.dp),
+      color = HighOrLowlight,
+      strokeWidth = 1.5.dp
+    )
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewChatPreviewView() {
+  SimpleXTheme {
+    ChatPreviewView(Chat.sampleData, stopped = false)
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chatlist/ContactConnectionView.kt

@@ -0,0 +1,55 @@
+package chat.simplex.app.views.chatlist
+
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Text
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.AddLink
+import androidx.compose.material.icons.outlined.Link
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.model.PendingContactConnection
+import chat.simplex.app.model.getTimestampText
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.helpers.ProfileImage
+
+@Composable
+fun ContactConnectionView(contactConnection: PendingContactConnection) {
+  Row {
+    Box(Modifier.size(72.dp), contentAlignment = Alignment.Center) {
+      ProfileImage(size = 54.dp, null, if (contactConnection.initiated) Icons.Outlined.AddLink else Icons.Outlined.Link)
+    }
+    Column(
+      modifier = Modifier
+        .padding(horizontal = 8.dp)
+        .weight(1F)
+    ) {
+      Text(
+        contactConnection.displayName,
+        maxLines = 1,
+        overflow = TextOverflow.Ellipsis,
+        style = MaterialTheme.typography.h3,
+        fontWeight = FontWeight.Bold,
+        color = HighOrLowlight
+      )
+      Text(contactConnection.description, maxLines = 2, color = if (isSystemInDarkTheme()) MessagePreviewDark else MessagePreviewLight)
+    }
+    val ts = getTimestampText(contactConnection.updatedAt)
+    Column(
+      Modifier.fillMaxHeight(),
+      verticalArrangement = Arrangement.Top
+    ) {
+      Text(
+        ts,
+        color = HighOrLowlight,
+        style = MaterialTheme.typography.body2,
+        modifier = Modifier.padding(bottom = 5.dp)
+      )
+    }
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/chatlist/ContactRequestView.kt

@@ -0,0 +1,51 @@
+package chat.simplex.app.views.chatlist
+
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.model.ChatInfo
+import chat.simplex.app.model.getTimestampText
+import chat.simplex.app.ui.theme.*
+import chat.simplex.app.views.helpers.ChatInfoImage
+
+@Composable
+fun ContactRequestView(contactRequest: ChatInfo.ContactRequest) {
+  Row {
+    ChatInfoImage(contactRequest, size = 72.dp)
+    Column(
+      modifier = Modifier
+        .padding(horizontal = 8.dp)
+        .weight(1F)
+    ) {
+      Text(
+        contactRequest.chatViewName,
+        maxLines = 1,
+        overflow = TextOverflow.Ellipsis,
+        style = MaterialTheme.typography.h3,
+        fontWeight = FontWeight.Bold,
+        color = MaterialTheme.colors.primary
+      )
+      Text(stringResource(R.string.contact_wants_to_connect_with_you), maxLines = 2, color = if (isSystemInDarkTheme()) MessagePreviewDark else MessagePreviewLight)
+    }
+    val ts = getTimestampText(contactRequest.contactRequest.updatedAt)
+    Column(
+      Modifier.fillMaxHeight(),
+      verticalArrangement = Arrangement.Top
+    ) {
+      Text(
+        ts,
+        color = HighOrLowlight,
+        style = MaterialTheme.typography.body2,
+        modifier = Modifier.padding(bottom = 5.dp)
+      )
+    }
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/database/ChatArchiveView.kt

@@ -0,0 +1,146 @@
+package chat.simplex.app.views.database
+
+import SectionDivider
+import SectionTextFooter
+import SectionView
+import android.content.Context
+import android.content.res.Configuration
+import android.net.Uri
+import android.util.Log
+import android.widget.Toast
+import androidx.activity.compose.ManagedActivityResultLauncher
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.TAG
+import chat.simplex.app.model.ChatModel
+import chat.simplex.app.ui.theme.SimpleXTheme
+import chat.simplex.app.views.helpers.*
+import chat.simplex.app.views.usersettings.*
+import kotlinx.datetime.*
+import java.io.BufferedOutputStream
+import java.io.File
+import java.text.SimpleDateFormat
+import java.util.*
+
+@Composable
+fun ChatArchiveView(m: ChatModel, title: String, archiveName: String, archiveTime: Instant) {
+  val context = LocalContext.current
+  val archivePath = "${getFilesDirectory(context)}/$archiveName"
+  val saveArchiveLauncher = rememberSaveArchiveLauncher(cxt = context, archivePath)
+  ChatArchiveLayout(
+    title,
+    archiveTime,
+    saveArchive = { saveArchiveLauncher.launch(archivePath.substringAfterLast("/")) },
+    deleteArchiveAlert = { deleteArchiveAlert(m, archivePath) }
+  )
+}
+
+@Composable
+fun ChatArchiveLayout(
+  title: String,
+  archiveTime: Instant,
+  saveArchive: () -> Unit,
+  deleteArchiveAlert: () -> Unit
+) {
+  Column(
+    Modifier.fillMaxWidth(),
+    horizontalAlignment = Alignment.Start,
+  ) {
+    Text(
+      title,
+      Modifier.padding(start = 16.dp, bottom = 24.dp),
+      style = MaterialTheme.typography.h1
+    )
+
+    SectionView(stringResource(R.string.chat_archive_section)) {
+      SettingsActionItem(
+        Icons.Outlined.IosShare,
+        stringResource(R.string.save_archive),
+        saveArchive,
+        textColor = MaterialTheme.colors.primary
+      )
+      SectionDivider()
+      SettingsActionItem(
+        Icons.Outlined.Delete,
+        stringResource(R.string.delete_archive),
+        deleteArchiveAlert,
+        textColor = Color.Red
+      )
+    }
+    val archiveTs = SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z", Locale.US).format(Date.from(archiveTime.toJavaInstant()))
+    SectionTextFooter(
+      String.format(generalGetString(R.string.archive_created_on_ts), archiveTs)
+    )
+  }
+}
+
+@Composable
+private fun rememberSaveArchiveLauncher(cxt: Context, chatArchivePath: String): ManagedActivityResultLauncher<String, Uri?> =
+  rememberLauncherForActivityResult(
+    contract = ActivityResultContracts.CreateDocument(),
+    onResult = { destination ->
+      try {
+        destination?.let {
+          val contentResolver = cxt.contentResolver
+          contentResolver.openOutputStream(destination)?.let { stream ->
+            val outputStream = BufferedOutputStream(stream)
+            val file = File(chatArchivePath)
+            outputStream.write(file.readBytes())
+            outputStream.close()
+            Toast.makeText(cxt, generalGetString(R.string.file_saved), Toast.LENGTH_SHORT).show()
+          }
+        }
+      } catch (e: Error) {
+        Toast.makeText(cxt, generalGetString(R.string.error_saving_file), Toast.LENGTH_SHORT).show()
+        Log.e(TAG, "rememberSaveArchiveLauncher error saving archive $e")
+      }
+    }
+  )
+
+private fun deleteArchiveAlert(m: ChatModel, archivePath: String) {
+  AlertManager.shared.showAlertDialog(
+    title = generalGetString(R.string.delete_chat_archive_question),
+    confirmText = generalGetString(R.string.delete_verb),
+    onConfirm = {
+      val fileDeleted = File(archivePath).delete()
+      if (fileDeleted) {
+        m.controller.appPrefs.chatArchiveName.set(null)
+        m.controller.appPrefs.chatArchiveTime.set(null)
+        ModalManager.shared.closeModal()
+      } else {
+        Log.e(TAG, "deleteArchiveAlert delete() error")
+      }
+    }
+  )
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewChatArchiveLayout() {
+  SimpleXTheme {
+    ChatArchiveLayout(
+      title = "New database archive",
+      archiveTime = Clock.System.now(),
+      saveArchive = {},
+      deleteArchiveAlert = {}
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/database/DatabaseView.kt

@@ -0,0 +1,473 @@
+package chat.simplex.app.views.database
+
+import SectionDivider
+import SectionTextFooter
+import SectionItemView
+import SectionSpacer
+import SectionView
+import android.content.Context
+import android.content.res.Configuration
+import android.net.Uri
+import android.os.FileUtils
+import android.util.Log
+import android.widget.Toast
+import androidx.activity.compose.ManagedActivityResultLauncher
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.PlayArrow
+import androidx.compose.material.icons.filled.Report
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.*
+import chat.simplex.app.R
+import chat.simplex.app.model.*
+import chat.simplex.app.ui.theme.HighOrLowlight
+import chat.simplex.app.ui.theme.SimpleXTheme
+import chat.simplex.app.views.helpers.*
+import chat.simplex.app.views.usersettings.*
+import kotlinx.datetime.*
+import java.io.*
+import java.text.SimpleDateFormat
+import java.util.*
+
+@Composable
+fun DatabaseView(
+  m: ChatModel,
+  showSettingsModal: (@Composable (ChatModel) -> Unit) -> (() -> Unit)
+) {
+  val context = LocalContext.current
+  val progressIndicator = remember { mutableStateOf(false) }
+  val runChat = remember { mutableStateOf(m.chatRunning.value ?: true) }
+  val prefs = m.controller.appPrefs
+  val chatArchiveName = remember { mutableStateOf(prefs.chatArchiveName.get()) }
+  val chatArchiveTime = remember { mutableStateOf(prefs.chatArchiveTime.get()) }
+  val chatLastStart = remember { mutableStateOf(prefs.chatLastStart.get()) }
+  val chatArchiveFile = remember { mutableStateOf<String?>(null) }
+  val saveArchiveLauncher = rememberSaveArchiveLauncher(cxt = context, chatArchiveFile)
+  val importArchiveLauncher = rememberGetContentLauncher { uri: Uri? ->
+    if (uri != null) {
+      importArchiveAlert(m, context, uri, progressIndicator)
+    }
+  }
+  LaunchedEffect(m.chatRunning) {
+    runChat.value = m.chatRunning.value ?: true
+  }
+  Box(
+    Modifier.fillMaxSize(),
+  ) {
+    DatabaseLayout(
+      progressIndicator.value,
+      runChat.value,
+      m.chatDbChanged.value,
+      importArchiveLauncher,
+      chatArchiveName,
+      chatArchiveTime,
+      chatLastStart,
+      startChat = { startChat(m, runChat, chatLastStart, context) },
+      stopChatAlert = { stopChatAlert(m, runChat, context) },
+      exportArchive = { exportArchive(context, m, progressIndicator, chatArchiveName, chatArchiveTime, chatArchiveFile, saveArchiveLauncher) },
+      deleteChatAlert = { deleteChatAlert(m, progressIndicator) },
+      showSettingsModal
+    )
+    if (progressIndicator.value) {
+      Box(
+        Modifier.fillMaxSize(),
+        contentAlignment = Alignment.Center
+      ) {
+        CircularProgressIndicator(
+          Modifier
+            .padding(horizontal = 2.dp)
+            .size(30.dp),
+          color = HighOrLowlight,
+          strokeWidth = 2.5.dp
+        )
+      }
+    }
+  }
+}
+
+@Composable
+fun DatabaseLayout(
+  progressIndicator: Boolean,
+  runChat: Boolean,
+  chatDbChanged: Boolean,
+  importArchiveLauncher: ManagedActivityResultLauncher<String, Uri?>,
+  chatArchiveName: MutableState<String?>,
+  chatArchiveTime: MutableState<Instant?>,
+  chatLastStart: MutableState<Instant?>,
+  startChat: () -> Unit,
+  stopChatAlert: () -> Unit,
+  exportArchive: () -> Unit,
+  deleteChatAlert: () -> Unit,
+  showSettingsModal: (@Composable (ChatModel) -> Unit) -> (() -> Unit)
+) {
+  val stopped = !runChat
+  val operationsDisabled = !stopped || progressIndicator || chatDbChanged
+
+  Column(
+    Modifier.fillMaxWidth(),
+    horizontalAlignment = Alignment.Start,
+  ) {
+    Text(
+      stringResource(R.string.your_chat_database),
+      Modifier.padding(start = 16.dp, bottom = 24.dp),
+      style = MaterialTheme.typography.h1
+    )
+
+    SectionView(stringResource(R.string.run_chat_section)) {
+      RunChatSetting(runChat, stopped, chatDbChanged, startChat, stopChatAlert)
+    }
+    SectionSpacer()
+
+    SectionView(stringResource(R.string.chat_database_section)) {
+      SettingsActionItem(
+        Icons.Outlined.IosShare,
+        stringResource(R.string.export_database),
+        exportArchive,
+        textColor = MaterialTheme.colors.primary,
+        disabled = operationsDisabled
+      )
+      SectionDivider()
+      SettingsActionItem(
+        Icons.Outlined.FileDownload,
+        stringResource(R.string.import_database),
+        { importArchiveLauncher.launch("application/zip") },
+        textColor = Color.Red,
+        disabled = operationsDisabled
+      )
+      SectionDivider()
+      val chatArchiveNameVal = chatArchiveName.value
+      val chatArchiveTimeVal = chatArchiveTime.value
+      val chatLastStartVal = chatLastStart.value
+      if (chatArchiveNameVal != null && chatArchiveTimeVal != null && chatLastStartVal != null) {
+        val title = chatArchiveTitle(chatArchiveTimeVal, chatLastStartVal)
+        SettingsActionItem(
+          Icons.Outlined.Inventory2,
+          title,
+          click = showSettingsModal { ChatArchiveView(it, title, chatArchiveNameVal, chatArchiveTimeVal) },
+          disabled = operationsDisabled
+        )
+        SectionDivider()
+      }
+      SettingsActionItem(
+        Icons.Outlined.DeleteForever,
+        stringResource(R.string.delete_database),
+        deleteChatAlert,
+        textColor = Color.Red,
+        disabled = operationsDisabled
+      )
+    }
+    SectionTextFooter(
+      if (chatDbChanged) {
+        stringResource(R.string.restart_the_app_to_use_new_chat_database)
+      } else {
+        if (stopped) {
+          stringResource(R.string.you_must_use_the_most_recent_version_of_database)
+        } else {
+          stringResource(R.string.stop_chat_to_enable_database_actions)
+        }
+      }
+    )
+  }
+}
+
+@Composable
+fun RunChatSetting(
+  runChat: Boolean,
+  stopped: Boolean,
+  chatDbChanged: Boolean,
+  startChat: () -> Unit,
+  stopChatAlert: () -> Unit
+) {
+  SectionItemView() {
+    Row(verticalAlignment = Alignment.CenterVertically) {
+      val chatRunningText = if (stopped) stringResource(R.string.chat_is_stopped) else stringResource(R.string.chat_is_running)
+      Icon(
+        if (stopped) Icons.Filled.Report else Icons.Filled.PlayArrow,
+        chatRunningText,
+        tint = if (chatDbChanged) HighOrLowlight else if (stopped) Color.Red else MaterialTheme.colors.primary
+      )
+      Spacer(Modifier.padding(horizontal = 4.dp))
+      Text(
+        chatRunningText,
+        Modifier.padding(end = 24.dp),
+        color = if (chatDbChanged) HighOrLowlight else Color.Unspecified
+      )
+      Spacer(Modifier.fillMaxWidth().weight(1f))
+      Switch(
+        checked = runChat,
+        onCheckedChange = { runChatSwitch ->
+          if (runChatSwitch) {
+            startChat()
+          } else {
+            stopChatAlert()
+          }
+        },
+        colors = SwitchDefaults.colors(
+          checkedThumbColor = MaterialTheme.colors.primary,
+          uncheckedThumbColor = HighOrLowlight
+        ),
+        enabled = !chatDbChanged
+      )
+    }
+  }
+}
+
+@Composable
+fun chatArchiveTitle(chatArchiveTime: Instant, chatLastStart: Instant): String {
+  return stringResource(if (chatArchiveTime < chatLastStart) R.string.old_database_archive else R.string.new_database_archive)
+}
+
+private fun startChat(m: ChatModel, runChat: MutableState<Boolean>, chatLastStart: MutableState<Instant?>, context: Context) {
+  withApi {
+    try {
+      m.controller.apiStartChat()
+      runChat.value = true
+      m.chatRunning.value = true
+      val ts = Clock.System.now()
+      m.controller.appPrefs.chatLastStart.set(ts)
+      chatLastStart.value = ts
+      SimplexService.start(context)
+    } catch (e: Error) {
+      runChat.value = false
+      AlertManager.shared.showAlertMsg(generalGetString(R.string.error_starting_chat), e.toString())
+    }
+  }
+}
+
+private fun stopChatAlert(m: ChatModel, runChat: MutableState<Boolean>, context: Context) {
+  AlertManager.shared.showAlertDialog(
+    title = generalGetString(R.string.stop_chat_question),
+    text = generalGetString(R.string.stop_chat_to_export_import_or_delete_chat_database),
+    confirmText = generalGetString(R.string.stop_chat_confirmation),
+    onConfirm = { stopChat(m, runChat, context) },
+    onDismiss = { runChat.value = true }
+  )
+}
+
+private fun stopChat(m: ChatModel, runChat: MutableState<Boolean>, context: Context) {
+  withApi {
+    try {
+      m.controller.apiStopChat()
+      runChat.value = false
+      m.chatRunning.value = false
+      SimplexService.stop(context)
+    } catch (e: Error) {
+      runChat.value = true
+      AlertManager.shared.showAlertMsg(generalGetString(R.string.error_starting_chat), e.toString())
+    }
+  }
+}
+
+private fun exportArchive(
+  context: Context,
+  m: ChatModel,
+  progressIndicator: MutableState<Boolean>,
+  chatArchiveName: MutableState<String?>,
+  chatArchiveTime: MutableState<Instant?>,
+  chatArchiveFile: MutableState<String?>,
+  saveArchiveLauncher: ManagedActivityResultLauncher<String, Uri?>
+) {
+  progressIndicator.value = true
+  withApi {
+    try {
+      val archiveFile = exportChatArchive(m, context, chatArchiveName, chatArchiveTime, chatArchiveFile)
+      chatArchiveFile.value = archiveFile
+      saveArchiveLauncher.launch(archiveFile.substringAfterLast("/"))
+      progressIndicator.value = false
+    } catch (e: Error) {
+      AlertManager.shared.showAlertMsg(generalGetString(R.string.error_exporting_chat_database), e.toString())
+      progressIndicator.value = false
+    }
+  }
+}
+
+private suspend fun exportChatArchive(
+  m: ChatModel,
+  context: Context,
+  chatArchiveName: MutableState<String?>,
+  chatArchiveTime: MutableState<Instant?>,
+  chatArchiveFile: MutableState<String?>
+): String {
+  val archiveTime = Clock.System.now()
+  val ts = SimpleDateFormat("yyyy-MM-dd'T'HHmmss", Locale.US).format(Date.from(archiveTime.toJavaInstant()))
+  val archiveName = "simplex-chat.$ts.zip"
+  val archivePath = "${getFilesDirectory(context)}/$archiveName"
+  val config = ArchiveConfig(archivePath, parentTempDirectory = context.cacheDir.toString())
+  m.controller.apiExportArchive(config)
+  deleteOldArchive(m, context)
+  m.controller.appPrefs.chatArchiveName.set(archiveName)
+  chatArchiveName.value = archiveName
+  m.controller.appPrefs.chatArchiveTime.set(archiveTime)
+  chatArchiveTime.value = archiveTime
+  chatArchiveFile.value = archivePath
+  return archivePath
+}
+
+private fun deleteOldArchive(m: ChatModel, context: Context) {
+  val chatArchiveName = m.controller.appPrefs.chatArchiveName.get()
+  if (chatArchiveName != null) {
+    val file = File("${getFilesDirectory(context)}/$chatArchiveName")
+    val fileDeleted = file.delete()
+    if (fileDeleted) {
+      m.controller.appPrefs.chatArchiveName.set(null)
+      m.controller.appPrefs.chatArchiveTime.set(null)
+    } else {
+      Log.e(TAG, "deleteOldArchive file.delete() error")
+    }
+  }
+}
+
+@Composable
+private fun rememberSaveArchiveLauncher(cxt: Context, chatArchiveFile: MutableState<String?>): ManagedActivityResultLauncher<String, Uri?> =
+  rememberLauncherForActivityResult(
+    contract = ActivityResultContracts.CreateDocument(),
+    onResult = { destination ->
+      try {
+        destination?.let {
+          val filePath = chatArchiveFile.value
+          if (filePath != null) {
+            val contentResolver = cxt.contentResolver
+            contentResolver.openOutputStream(destination)?.let { stream ->
+              val outputStream = BufferedOutputStream(stream)
+              val file = File(filePath)
+              outputStream.write(file.readBytes())
+              outputStream.close()
+              Toast.makeText(cxt, generalGetString(R.string.file_saved), Toast.LENGTH_SHORT).show()
+            }
+          } else {
+            Toast.makeText(cxt, generalGetString(R.string.file_not_found), Toast.LENGTH_SHORT).show()
+          }
+        }
+      } catch (e: Error) {
+        Toast.makeText(cxt, generalGetString(R.string.error_saving_file), Toast.LENGTH_SHORT).show()
+        Log.e(TAG, "rememberSaveArchiveLauncher error saving archive $e")
+      } finally {
+        chatArchiveFile.value = null
+      }
+    }
+  )
+
+private fun importArchiveAlert(m: ChatModel, context: Context, importedArchiveUri: Uri, progressIndicator: MutableState<Boolean>) {
+  AlertManager.shared.showAlertDialog(
+    title = generalGetString(R.string.import_database_question),
+    text = generalGetString(R.string.your_current_chat_database_will_be_deleted_and_replaced_with_the_imported_one),
+    confirmText = generalGetString(R.string.import_database_confirmation),
+    onConfirm = { importArchive(m, context, importedArchiveUri, progressIndicator) }
+  )
+}
+
+private fun importArchive(m: ChatModel, context: Context, importedArchiveUri: Uri, progressIndicator: MutableState<Boolean>) {
+  progressIndicator.value = true
+  val archivePath = saveArchiveFromUri(context, importedArchiveUri)
+  if (archivePath != null) {
+    withApi {
+      try {
+        m.controller.apiDeleteStorage()
+        try {
+          val config = ArchiveConfig(archivePath, parentTempDirectory = context.cacheDir.toString())
+          m.controller.apiImportArchive(config)
+          operationEnded(m, progressIndicator) {
+            AlertManager.shared.showAlertMsg(generalGetString(R.string.chat_database_imported), generalGetString(R.string.restart_the_app_to_use_imported_chat_database))
+          }
+        } catch (e: Error) {
+          operationEnded(m, progressIndicator) {
+            AlertManager.shared.showAlertMsg(generalGetString(R.string.error_importing_database), e.toString())
+          }
+        }
+      } catch (e: Error) {
+        operationEnded(m, progressIndicator) {
+          AlertManager.shared.showAlertMsg(generalGetString(R.string.error_deleting_database), e.toString())
+        }
+      } finally {
+        File(archivePath).delete()
+      }
+    }
+  }
+}
+
+private fun saveArchiveFromUri(context: Context, importedArchiveUri: Uri): String? {
+  return try {
+    val inputStream = context.contentResolver.openInputStream(importedArchiveUri)
+    val archiveName = getFileName(context, importedArchiveUri)
+    if (inputStream != null && archiveName != null) {
+      val archivePath = "${context.cacheDir}/$archiveName"
+      val destFile = File(archivePath)
+      FileUtils.copy(inputStream, FileOutputStream(destFile))
+      archivePath
+    } else {
+      Log.e(TAG, "saveArchiveFromUri null inputStream")
+      null
+    }
+  } catch (e: Exception) {
+    Log.e(TAG, "saveArchiveFromUri error: ${e.message}")
+    null
+  }
+}
+
+private fun deleteChatAlert(m: ChatModel, progressIndicator: MutableState<Boolean>) {
+  AlertManager.shared.showAlertDialog(
+    title = generalGetString(R.string.delete_chat_profile_question),
+    text = generalGetString(R.string.delete_chat_profile_action_cannot_be_undone_warning),
+    confirmText = generalGetString(R.string.delete_verb),
+    onConfirm = { deleteChat(m, progressIndicator) }
+  )
+}
+
+private fun deleteChat(m: ChatModel, progressIndicator: MutableState<Boolean>) {
+  progressIndicator.value = true
+  withApi {
+    try {
+      m.controller.apiDeleteStorage()
+      operationEnded(m, progressIndicator) {
+        AlertManager.shared.showAlertMsg(generalGetString(R.string.chat_database_deleted), generalGetString(R.string.restart_the_app_to_create_a_new_chat_profile))
+      }
+    } catch (e: Error) {
+      operationEnded(m, progressIndicator) {
+        AlertManager.shared.showAlertMsg(generalGetString(R.string.error_deleting_database), e.toString())
+      }
+    }
+  }
+}
+
+private fun operationEnded(m: ChatModel, progressIndicator: MutableState<Boolean>, alert: () -> Unit) {
+  m.chatDbChanged.value = true
+  progressIndicator.value = false
+  alert.invoke()
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewDatabaseLayout() {
+  SimpleXTheme {
+    DatabaseLayout(
+      progressIndicator = false,
+      runChat = true,
+      chatDbChanged = false,
+      importArchiveLauncher = rememberGetContentLauncher {},
+      chatArchiveName = remember { mutableStateOf("dummy_archive") },
+      chatArchiveTime = remember { mutableStateOf(Clock.System.now()) },
+      chatLastStart = remember { mutableStateOf(Clock.System.now()) },
+      startChat = {},
+      stopChatAlert = {},
+      exportArchive = {},
+      deleteChatAlert = {},
+      showSettingsModal = { {} }
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/helpers/AlertManager.kt

@@ -0,0 +1,99 @@
+package chat.simplex.app.views.helpers
+
+import android.util.Log
+import androidx.compose.material.*
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.mutableStateOf
+import chat.simplex.app.R
+import chat.simplex.app.TAG
+
+class AlertManager {
+  var alertView = mutableStateOf<(@Composable () -> Unit)?>(null)
+  var presentAlert = mutableStateOf<Boolean>(false)
+
+  fun showAlert(alert: @Composable () -> Unit) {
+    Log.d(TAG, "AlertManager.showAlert")
+    alertView.value = alert
+    presentAlert.value = true
+  }
+
+  fun hideAlert() {
+    presentAlert.value = false
+    alertView.value = null
+  }
+
+  fun showAlertDialogButtons(
+    title: String,
+    text: String? = null,
+    buttons: @Composable () -> Unit,
+  ) {
+    val alertText: (@Composable () -> Unit)? = if (text == null) null else { -> Text(text) }
+    showAlert {
+      AlertDialog(
+        onDismissRequest = this::hideAlert,
+        title = { Text(title) },
+        text = alertText,
+        buttons = buttons
+      )
+    }
+  }
+
+  fun showAlertDialog(
+    title: String,
+    text: String? = null,
+    confirmText: String = generalGetString(R.string.ok),
+    onConfirm: (() -> Unit)? = null,
+    dismissText: String = generalGetString(R.string.cancel_verb),
+    onDismiss: (() -> Unit)? = null
+  ) {
+    val alertText: (@Composable () -> Unit)? = if (text == null) null else { -> Text(text) }
+    showAlert {
+      AlertDialog(
+        onDismissRequest = this::hideAlert,
+        title = { Text(title) },
+        text = alertText,
+        confirmButton = {
+          Button(onClick = {
+            onConfirm?.invoke()
+            hideAlert()
+          }) { Text(confirmText) }
+        },
+        dismissButton = {
+          Button(onClick = {
+            onDismiss?.invoke()
+            hideAlert()
+          }) { Text(dismissText) }
+        }
+      )
+    }
+  }
+
+  fun showAlertMsg(
+    title: String, text: String? = null,
+    confirmText: String = generalGetString(R.string.ok), onConfirm: (() -> Unit)? = null
+  ) {
+    val alertText: (@Composable () -> Unit)? = if (text == null) null else { -> Text(text) }
+    showAlert {
+      AlertDialog(
+        onDismissRequest = this::hideAlert,
+        title = { Text(title) },
+        text = alertText,
+        confirmButton = {
+          Button(onClick = {
+            onConfirm?.invoke()
+            hideAlert()
+          }) { Text(confirmText) }
+        }
+      )
+    }
+  }
+
+  @Composable
+  fun showInView() {
+    if (presentAlert.value) alertView.value?.invoke()
+  }
+
+  companion object {
+    val shared = AlertManager()
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/helpers/ChatInfoImage.kt

@@ -0,0 +1,70 @@
+package chat.simplex.app.views.helpers
+
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material.Icon
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.AccountCircle
+import androidx.compose.material.icons.filled.SupervisedUserCircle
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.asImageBitmap
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.model.ChatInfo
+import chat.simplex.app.ui.theme.SimpleXTheme
+
+@Composable
+fun ChatInfoImage(chatInfo: ChatInfo, size: Dp, iconColor: Color = MaterialTheme.colors.secondary) {
+  val icon =
+    if (chatInfo is ChatInfo.Group) Icons.Filled.SupervisedUserCircle
+                                    else Icons.Filled.AccountCircle
+  ProfileImage(size, chatInfo.image, icon, iconColor)
+}
+
+@Composable
+fun ProfileImage(
+  size: Dp,
+  image: String? = null,
+  icon: ImageVector = Icons.Filled.AccountCircle,
+  color: Color = MaterialTheme.colors.secondary
+) {
+  Box(Modifier.size(size)) {
+    if (image == null) {
+      Icon(
+        icon,
+        contentDescription = stringResource(R.string.icon_descr_profile_image_placeholder),
+        tint = color,
+        modifier = Modifier.fillMaxSize()
+      )
+    } else {
+      val imageBitmap = base64ToBitmap(image).asImageBitmap()
+      Image(
+        imageBitmap,
+        stringResource(R.string.image_descr_profile_image),
+        contentScale = ContentScale.Crop,
+        modifier = Modifier.size(size).padding(size / 12).clip(CircleShape)
+      )
+    }
+  }
+}
+
+@Preview
+@Composable
+fun PreviewChatInfoImage() {
+  SimpleXTheme {
+    ChatInfoImage(
+      chatInfo = ChatInfo.Direct.sampleData,
+      size = 55.dp
+    )
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/helpers/ChooseAttachmentView.kt

@@ -0,0 +1,54 @@
+package chat.simplex.app.views.helpers
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.*
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.MutableState
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.onFocusChanged
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.views.newchat.ActionButton
+
+sealed class AttachmentOption {
+  object TakePhoto: AttachmentOption()
+  object PickImage: AttachmentOption()
+  object PickFile: AttachmentOption()
+}
+
+@Composable
+fun ChooseAttachmentView(
+  attachmentOption: MutableState<AttachmentOption?>,
+  hide: () -> Unit
+) {
+  Box(
+    modifier = Modifier
+      .fillMaxWidth()
+      .wrapContentHeight()
+      .onFocusChanged { focusState ->
+        if (!focusState.hasFocus) hide()
+      }
+  ) {
+    Row(
+      Modifier
+        .fillMaxWidth()
+        .padding(horizontal = 8.dp, vertical = 30.dp),
+      horizontalArrangement = Arrangement.SpaceEvenly
+    ) {
+      ActionButton(null, stringResource(R.string.use_camera_button), icon = Icons.Outlined.PhotoCamera) {
+        attachmentOption.value = AttachmentOption.TakePhoto
+        hide()
+      }
+      ActionButton(null, stringResource(R.string.from_gallery_button), icon = Icons.Outlined.Collections) {
+        attachmentOption.value = AttachmentOption.PickImage
+        hide()
+      }
+      ActionButton(null, stringResource(R.string.choose_file), icon = Icons.Outlined.InsertDriveFile) {
+        attachmentOption.value = AttachmentOption.PickFile
+        hide()
+      }
+    }
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/helpers/CloseSheetBar.kt

@@ -0,0 +1,48 @@
+package chat.simplex.app.views.helpers
+
+import android.content.res.Configuration
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Close
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.R
+import chat.simplex.app.ui.theme.SimpleXTheme
+
+@Composable
+fun CloseSheetBar(close: () -> Unit) {
+  Row (
+    Modifier
+      .fillMaxWidth()
+      .height(60.dp),
+    horizontalArrangement = Arrangement.End,
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    IconButton(onClick = close) {
+      Icon(
+        Icons.Outlined.Close,
+        stringResource(R.string.icon_descr_close_button),
+        tint = MaterialTheme.colors.primary,
+        modifier = Modifier.padding(10.dp)
+      )
+    }
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "Dark Mode"
+)
+@Composable
+fun PreviewCloseSheetBar() {
+  SimpleXTheme {
+    CloseSheetBar(close = {})
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/helpers/DefaultTopAppBar.kt

@@ -0,0 +1,124 @@
+package chat.simplex.app.views.helpers
+
+import chat.simplex.app.R
+import androidx.compose.foundation.*
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.ArrowBackIos
+import androidx.compose.material.icons.outlined.Menu
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.*
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import chat.simplex.app.ui.theme.ToolbarDark
+import chat.simplex.app.ui.theme.ToolbarLight
+
+@Composable
+fun DefaultTopAppBar(
+  navigationButton: @Composable RowScope.() -> Unit,
+  title: @Composable () -> Unit,
+  onTitleClick: (() -> Unit)? = null,
+  showSearch: Boolean,
+  onSearchValueChanged: (String) -> Unit,
+  buttons: List<@Composable RowScope.() -> Unit> = emptyList(),
+) {
+  // If I just disable clickable modifier when don't need it, it will stop passing clicks to search. Replacing the whole modifier
+  val modifier = if (!showSearch) {
+    Modifier.clickable(enabled = onTitleClick != null, onClick = onTitleClick ?: { })
+  } else Modifier
+
+  TopAppBar(
+    modifier = modifier,
+    title = {
+      if (!showSearch) {
+        title()
+      } else {
+        SearchTextField(Modifier.fillMaxWidth(), stringResource(android.R.string.search_go), onSearchValueChanged)
+      }
+    },
+    backgroundColor = if (isSystemInDarkTheme()) ToolbarDark else ToolbarLight,
+    navigationIcon = navigationButton,
+    buttons = if (!showSearch) buttons else emptyList(),
+    centered = !showSearch
+  )
+}
+
+@Composable
+fun NavigationButtonBack(onButtonClicked: () -> Unit) {
+  IconButton(onButtonClicked) {
+    Icon(
+      Icons.Outlined.ArrowBackIos, stringResource(R.string.back), tint = MaterialTheme.colors.primary
+    )
+  }
+}
+
+@Composable
+fun NavigationButtonMenu(onButtonClicked: () -> Unit) {
+  IconButton(onClick = onButtonClicked) {
+    Icon(
+      Icons.Outlined.Menu,
+      stringResource(R.string.icon_descr_settings),
+      tint = MaterialTheme.colors.primary,
+    )
+  }
+}
+
+@Composable
+private fun TopAppBar(
+  title: @Composable () -> Unit,
+  modifier: Modifier = Modifier,
+  navigationIcon: @Composable (RowScope.() -> Unit)? = null,
+  buttons: List<@Composable RowScope.() -> Unit> = emptyList(),
+  backgroundColor: Color = MaterialTheme.colors.primarySurface,
+  centered: Boolean,
+) {
+  Box(
+    modifier
+      .fillMaxWidth()
+      .height(AppBarHeight)
+      .background(backgroundColor)
+      .padding(horizontal = 4.dp),
+    contentAlignment = Alignment.CenterStart,
+  ) {
+    if (navigationIcon != null) {
+      Row(
+        Modifier
+          .fillMaxHeight()
+          .width(TitleInsetWithIcon - AppBarHorizontalPadding),
+        verticalAlignment = Alignment.CenterVertically,
+        content = navigationIcon
+      )
+    }
+
+    Row(
+      Modifier
+        .fillMaxHeight()
+        .fillMaxWidth(),
+      horizontalArrangement = Arrangement.End,
+      verticalAlignment = Alignment.CenterVertically,
+    ) {
+      buttons.forEach { it() }
+    }
+    val startPadding = if (navigationIcon != null) TitleInsetWithIcon else TitleInsetWithoutIcon
+    val endPadding = (buttons.size * 50f).dp
+    Box(
+      Modifier
+        .fillMaxWidth()
+        .padding(
+          start = if (centered) kotlin.math.max(startPadding.value, endPadding.value).dp else startPadding,
+          end = if (centered) kotlin.math.max(startPadding.value, endPadding.value).dp else endPadding
+        ),
+      contentAlignment = Alignment.Center
+    ) {
+      title()
+    }
+  }
+}
+
+val AppBarHeight = 56.dp
+private val AppBarHorizontalPadding = 4.dp
+private val TitleInsetWithoutIcon = 16.dp - AppBarHorizontalPadding
+private val TitleInsetWithIcon = 72.dp

apps/android/app/src/main/java/chat/simplex/app/views/helpers/GestureDetector.kt

@@ -0,0 +1,227 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package chat.simplex.app.views.helpers
+
+import android.util.Log
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.combinedClickable
+import androidx.compose.foundation.gestures.forEachGesture
+import androidx.compose.foundation.interaction.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.input.pointer.AwaitPointerEventScope
+import androidx.compose.ui.input.pointer.PointerEventTimeoutCancellationException
+import androidx.compose.ui.input.pointer.PointerEvent
+import androidx.compose.ui.input.pointer.PointerEventPass
+import androidx.compose.ui.input.pointer.PointerInputChange
+import androidx.compose.ui.input.pointer.PointerInputScope
+import androidx.compose.ui.input.pointer.changedToDown
+import androidx.compose.ui.input.pointer.changedToDownIgnoreConsumed
+import androidx.compose.ui.input.pointer.changedToUp
+import androidx.compose.ui.input.pointer.consumeAllChanges
+import androidx.compose.ui.input.pointer.consumeDownChange
+import androidx.compose.ui.input.pointer.isOutOfBounds
+import androidx.compose.ui.input.pointer.positionChangeConsumed
+import androidx.compose.ui.platform.LocalViewConfiguration
+import androidx.compose.ui.unit.Density
+import androidx.compose.ui.util.fastAll
+import androidx.compose.ui.util.fastAny
+import androidx.compose.ui.util.fastForEach
+import chat.simplex.app.TAG
+import kotlinx.coroutines.*
+import kotlinx.coroutines.sync.Mutex
+
+/**
+ * See original code here: [androidx.compose.foundation.gestures.detectTapGestures]
+ * */
+interface PressGestureScope: Density {
+  suspend fun tryAwaitRelease(): Boolean
+}
+
+private val NoPressGesture: suspend PressGestureScope.(Offset) -> Unit = { }
+
+suspend fun PointerInputScope.detectGesture(
+  onLongPress: ((Offset) -> Unit)? = null,
+  onPress: suspend PressGestureScope.(Offset) -> Unit = NoPressGesture,
+  shouldConsumeEvent: (Offset) -> Boolean
+) = coroutineScope {
+  val pressScope = PressGestureScopeImpl(this@detectGesture)
+
+  forEachGesture {
+    awaitPointerEventScope {
+      val down = awaitFirstDown()
+      // If shouldConsumeEvent == false, all touches will be propagated to parent
+      val shouldConsume = shouldConsumeEvent(down.position)
+      if (shouldConsume)
+        down.consumeDownChange()
+      pressScope.reset()
+      if (onPress !== NoPressGesture) launch {
+        pressScope.onPress(down.position)
+      }
+      val longPressTimeout = onLongPress?.let {
+        viewConfiguration.longPressTimeoutMillis
+      } ?: (Long.MAX_VALUE / 2)
+
+      try {
+        val upOrCancel: PointerInputChange? = withTimeout(longPressTimeout) {
+          waitForUpOrCancellation()
+        }
+        if (upOrCancel == null) {
+          pressScope.cancel()
+        } else {
+          if (shouldConsume)
+            upOrCancel.consumeDownChange()
+          // If onLongPress event is needed, cancel short press event
+          if (onLongPress != null)
+            pressScope.cancel()
+          else
+            pressScope.release()
+        }
+      } catch (_: PointerEventTimeoutCancellationException) {
+        onLongPress?.invoke(down.position)
+        if (shouldConsume)
+          consumeUntilUp()
+        pressScope.release()
+      }
+    }
+  }
+}
+
+private suspend fun AwaitPointerEventScope.consumeUntilUp() {
+  do {
+    val event = awaitPointerEvent()
+    event.changes.fastForEach { it.consumeAllChanges() }
+  } while (event.changes.fastAny { it.pressed })
+}
+
+suspend fun AwaitPointerEventScope.awaitFirstDown(
+  requireUnconsumed: Boolean = true
+): PointerInputChange =
+  awaitFirstDownOnPass(pass = PointerEventPass.Main, requireUnconsumed = requireUnconsumed)
+
+internal suspend fun AwaitPointerEventScope.awaitFirstDownOnPass(
+  pass: PointerEventPass,
+  requireUnconsumed: Boolean
+): PointerInputChange {
+  var event: PointerEvent
+  do {
+    event = awaitPointerEvent(pass)
+  } while (
+    !event.changes.fastAll {
+      if (requireUnconsumed) it.changedToDown() else it.changedToDownIgnoreConsumed()
+    }
+  )
+  return event.changes[0]
+}
+
+suspend fun AwaitPointerEventScope.waitForUpOrCancellation(): PointerInputChange? {
+  while (true) {
+    val event = awaitPointerEvent(PointerEventPass.Main)
+    if (event.changes.fastAll { it.changedToUp() }) {
+      return event.changes[0]
+    }
+
+    if (event.changes.fastAny {
+        it.consumed.downChange || it.isOutOfBounds(size, extendedTouchPadding)
+      }
+    ) {
+      return null
+    }
+    val consumeCheck = awaitPointerEvent(PointerEventPass.Final)
+    if (consumeCheck.changes.fastAny { it.positionChangeConsumed() }) {
+      return null
+    }
+  }
+}
+
+private class PressGestureScopeImpl(
+  density: Density
+): PressGestureScope, Density by density {
+  private var isReleased = false
+  private var isCanceled = false
+  private val mutex = Mutex(locked = false)
+
+  fun cancel() {
+    isCanceled = true
+    mutex.unlock()
+  }
+
+  fun release() {
+    isReleased = true
+    mutex.unlock()
+  }
+
+  fun reset() {
+    mutex.tryLock()
+    isReleased = false
+    isCanceled = false
+  }
+
+  override suspend fun tryAwaitRelease(): Boolean {
+    if (!isReleased && !isCanceled) {
+      mutex.lock()
+    }
+    return isCanceled
+  }
+}
+
+/**
+ * Captures click events and calls [onLongClick] or [onClick] when such even happens. Otherwise, does nothing.
+ * Apply [MutableInteractionSource] to any element that allows to pass it in (for example, in [Modifier.clickable]).
+ * Works in situations when using [Modifier.combinedClickable] doesn't work because external element overrides [Modifier.clickable]
+ * */
+@Composable
+fun interactionSourceWithDetection(onClick: () -> Unit, onLongClick: () -> Unit): MutableInteractionSource {
+  val interactionSource = remember { MutableInteractionSource() }
+  val longPressTimeoutMillis = LocalViewConfiguration.current.longPressTimeoutMillis
+  var topLevelInteraction: Interaction? by remember { mutableStateOf(null) }
+  LaunchedEffect(interactionSource) {
+    interactionSource.interactions.collect { interaction ->
+      topLevelInteraction = interaction
+    }
+  }
+  LaunchedEffect(topLevelInteraction is PressInteraction.Press) {
+    if (topLevelInteraction !is PressInteraction.Press) return@LaunchedEffect
+    try {
+      withTimeout(longPressTimeoutMillis) {
+        while (isActive) {
+          delay(10)
+          when (topLevelInteraction) {
+            is PressInteraction.Press -> {}
+            is PressInteraction.Release -> {
+              onClick(); break
+            }
+            is PressInteraction.Cancel -> break
+          }
+        }
+      }
+    } catch (_: TimeoutCancellationException) {
+      // Long click happened
+      onLongClick()
+    } catch (ex: CancellationException) {
+      // Canceled coroutine + PressInteraction.Release == short click
+      if (topLevelInteraction is PressInteraction.Release)
+        onClick()
+      Log.e(TAG, ex.stackTraceToString())
+    } catch (ex: Exception) {
+      // Should never be called
+      Log.e(TAG, ex.stackTraceToString())
+    }
+  }
+  return interactionSource
+}

apps/android/app/src/main/java/chat/simplex/app/views/helpers/GetImageView.kt

@@ -0,0 +1,221 @@
+package chat.simplex.app.views.helpers
+
+import android.Manifest
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.graphics.*
+import android.net.Uri
+import android.provider.MediaStore
+import android.util.Base64
+import android.util.Log
+import android.widget.Toast
+import androidx.activity.compose.ManagedActivityResultLauncher
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContract
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.annotation.CallSuper
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Collections
+import androidx.compose.material.icons.outlined.PhotoCamera
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.MutableState
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.onFocusChanged
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.core.content.ContextCompat
+import androidx.core.content.FileProvider
+import chat.simplex.app.*
+import chat.simplex.app.R
+import chat.simplex.app.views.newchat.ActionButton
+import java.io.ByteArrayOutputStream
+import java.io.File
+import kotlin.math.min
+import kotlin.math.sqrt
+
+// Inspired by https://github.com/MakeItEasyDev/Jetpack-Compose-Capture-Image-Or-Choose-from-Gallery
+fun cropToSquare(image: Bitmap): Bitmap {
+  var xOffset = 0
+  var yOffset = 0
+  val side = min(image.height, image.width)
+  if (image.height < image.width) {
+    xOffset = (image.width - side) / 2
+  } else {
+    yOffset = (image.height - side) / 2
+  }
+  return Bitmap.createBitmap(image, xOffset, yOffset, side, side)
+}
+
+fun resizeImageToStrSize(image: Bitmap, maxDataSize: Long): String {
+  var img = image
+  var str = compressImageStr(img)
+  while (str.length > maxDataSize) {
+    val ratio = sqrt(str.length.toDouble() / maxDataSize.toDouble())
+    val clippedRatio = min(ratio, 2.0)
+    val width = (img.width.toDouble() / clippedRatio).toInt()
+    val height = img.height * width / img.width
+    img = Bitmap.createScaledBitmap(img, width, height, true)
+    str = compressImageStr(img)
+  }
+  return str
+}
+
+private fun compressImageStr(bitmap: Bitmap): String {
+  return "data:image/jpg;base64," + Base64.encodeToString(compressImageData(bitmap).toByteArray(), Base64.NO_WRAP)
+}
+
+fun resizeImageToDataSize(image: Bitmap, maxDataSize: Long): ByteArrayOutputStream {
+  var img = image
+  var stream = compressImageData(img)
+  while (stream.size() > maxDataSize) {
+    val ratio = sqrt(stream.size().toDouble() / maxDataSize.toDouble())
+    val clippedRatio = min(ratio, 2.0)
+    val width = (img.width.toDouble() / clippedRatio).toInt()
+    val height = img.height * width / img.width
+    img = Bitmap.createScaledBitmap(img, width, height, true)
+    stream = compressImageData(img)
+  }
+  return stream
+}
+
+private fun compressImageData(bitmap: Bitmap): ByteArrayOutputStream {
+  val stream = ByteArrayOutputStream()
+  bitmap.compress(Bitmap.CompressFormat.JPEG, 85, stream)
+  return stream
+}
+
+val errorBitmapBytes = Base64.decode("iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAYAAACqaXHeAAAAAXNSR0IArs4c6QAAAKVJREFUeF7t1kENACEUQ0FQhnVQ9lfGO+xggITQdvbMzArPey+8fa3tAfwAEdABZQspQStgBssEcgAIkSAJkiAJljtEgiRIgmUCSZAESZAESZAEyx0iQRIkwTKBJEiCv5fgvTd1wDmn7QAP4AeIgA4oW0gJWgEzWCZwbQ7gAA7ggLKFOIADOKBMIAeAEAmSIAmSYLlDJEiCJFgmkARJkARJ8N8S/ADTZUewBvnTOQAAAABJRU5ErkJggg==", Base64.NO_WRAP)
+val errorBitmap: Bitmap = BitmapFactory.decodeByteArray(errorBitmapBytes, 0, errorBitmapBytes.size)
+
+fun base64ToBitmap(base64ImageString: String): Bitmap {
+  val imageString = base64ImageString
+    .removePrefix("data:image/png;base64,")
+    .removePrefix("data:image/jpg;base64,")
+  try {
+    val imageBytes = Base64.decode(imageString, Base64.NO_WRAP)
+    return BitmapFactory.decodeByteArray(imageBytes, 0, imageBytes.size)
+  } catch (e: Exception) {
+    Log.e(TAG, "base64ToBitmap error: $e")
+    return errorBitmap
+  }
+}
+
+class CustomTakePicturePreview: ActivityResultContract<Void?, Bitmap?>() {
+  private var uri: Uri? = null
+  private var tmpFile: File? = null
+  lateinit var externalContext: Context
+
+  @CallSuper
+  override fun createIntent(context: Context, input: Void?): Intent {
+    externalContext = context
+    tmpFile = File.createTempFile("image", ".bmp", context.filesDir)
+    uri = FileProvider.getUriForFile(context, "${BuildConfig.APPLICATION_ID}.provider", tmpFile!!)
+    return Intent(MediaStore.ACTION_IMAGE_CAPTURE)
+      .putExtra(MediaStore.EXTRA_OUTPUT, uri)
+  }
+
+  override fun getSynchronousResult(
+    context: Context,
+    input: Void?
+  ): SynchronousResult<Bitmap?>? = null
+
+  override fun parseResult(resultCode: Int, intent: Intent?): Bitmap? {
+    return if (resultCode == Activity.RESULT_OK && uri != null) {
+      val source = ImageDecoder.createSource(externalContext.contentResolver, uri!!)
+      val bitmap = ImageDecoder.decodeBitmap(source)
+      tmpFile?.delete()
+      bitmap
+    } else {
+      Log.e(TAG, "Getting image from camera cancelled or failed.")
+      tmpFile?.delete()
+      null
+    }
+  }
+}
+//class GetGalleryContent: ActivityResultContracts.GetContent() {
+//  override fun createIntent(context: Context, input: String): Intent {
+//    super.createIntent(context, input)
+//    return Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI)
+//  }
+//}
+//@Composable
+//fun rememberGalleryLauncher(cb: (Uri?) -> Unit): ManagedActivityResultLauncher<String, Uri?> =
+//  rememberLauncherForActivityResult(contract = GetGalleryContent(), cb)
+@Composable
+fun rememberCameraLauncher(cb: (Bitmap?) -> Unit): ManagedActivityResultLauncher<Void?, Bitmap?> =
+  rememberLauncherForActivityResult(contract = CustomTakePicturePreview(), cb)
+
+@Composable
+fun rememberPermissionLauncher(cb: (Boolean) -> Unit): ManagedActivityResultLauncher<String, Boolean> =
+  rememberLauncherForActivityResult(contract = ActivityResultContracts.RequestPermission(), cb)
+
+@Composable
+fun rememberGetContentLauncher(cb: (Uri?) -> Unit): ManagedActivityResultLauncher<String, Uri?> =
+  rememberLauncherForActivityResult(contract = ActivityResultContracts.GetContent(), cb)
+
+@Composable
+fun GetImageBottomSheet(
+  imageBitmap: MutableState<Bitmap?>,
+  onImageChange: (Bitmap) -> Unit,
+  hideBottomSheet: () -> Unit
+) {
+  val context = LocalContext.current
+  val galleryLauncher = rememberGetContentLauncher { uri: Uri? ->
+    if (uri != null) {
+      val source = ImageDecoder.createSource(context.contentResolver, uri)
+      val bitmap = ImageDecoder.decodeBitmap(source)
+      imageBitmap.value = bitmap
+      onImageChange(bitmap)
+    }
+  }
+  val cameraLauncher = rememberCameraLauncher { bitmap: Bitmap? ->
+    if (bitmap != null) {
+      imageBitmap.value = bitmap
+      onImageChange(bitmap)
+    }
+  }
+  val permissionLauncher = rememberPermissionLauncher { isGranted: Boolean ->
+    if (isGranted) {
+      cameraLauncher.launch(null)
+      hideBottomSheet()
+    } else {
+      Toast.makeText(context, generalGetString(R.string.toast_permission_denied), Toast.LENGTH_SHORT).show()
+    }
+  }
+
+  Box(
+    modifier = Modifier
+      .fillMaxWidth()
+      .wrapContentHeight()
+      .onFocusChanged { focusState ->
+        if (!focusState.hasFocus) hideBottomSheet()
+      }
+  ) {
+    Row(
+      Modifier
+        .fillMaxWidth()
+        .padding(horizontal = 8.dp, vertical = 30.dp),
+      horizontalArrangement = Arrangement.SpaceEvenly
+    ) {
+      ActionButton(null, stringResource(R.string.use_camera_button), icon = Icons.Outlined.PhotoCamera) {
+        when (PackageManager.PERMISSION_GRANTED) {
+          ContextCompat.checkSelfPermission(context, Manifest.permission.CAMERA) -> {
+            cameraLauncher.launch(null)
+            hideBottomSheet()
+          }
+          else -> {
+            permissionLauncher.launch(Manifest.permission.CAMERA)
+          }
+        }
+      }
+      ActionButton(null, stringResource(R.string.from_gallery_button), icon = Icons.Outlined.Collections) {
+        galleryLauncher.launch("image/*")
+        hideBottomSheet()
+      }
+    }
+  }
+}

apps/android/app/src/main/java/chat/simplex/app/views/helpers/LinkPreviews.kt

@@ -0,0 +1,163 @@
+package chat.simplex.app.views.helpers
+
+import android.content.res.Configuration
+import android.graphics.BitmapFactory
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Close
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.asImageBitmap
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.app.R
+import chat.simplex.app.model.LinkPreview
+import chat.simplex.app.ui.theme.HighOrLowlight
+import chat.simplex.app.ui.theme.SimpleXTheme
+import chat.simplex.app.views.chat.item.SentColorLight
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import org.jsoup.Jsoup
+
+private const val OG_SELECT_QUERY = "meta[property^=og:]"
+
+suspend fun getLinkPreview(url: String): LinkPreview? {
+  return withContext(Dispatchers.IO) {
+    try {
+      val response = Jsoup.connect(url)
+        .ignoreContentType(true)
+        .timeout(10000)
+        .followRedirects(true)
+        .execute()
+      val doc = response.parse()
+      val ogTags = doc.select(OG_SELECT_QUERY)
+      val imageUri = ogTags.firstOrNull { it.attr("property") == "og:image" }?.attr("content")
+      if (imageUri != null) {
+        try {
+          val stream = java.net.URL(imageUri).openStream()
+          val image = resizeImageToStrSize(BitmapFactory.decodeStream(stream), maxDataSize = 14000)
+//          TODO add once supported in iOS
+//          val description = ogTags.firstOrNull {
+//            it.attr("property") == "og:description"
+//          }?.attr("content") ?: ""
+          val title = ogTags.firstOrNull { it.attr("property") == "og:title" }?.attr("content")
+          if (title != null) {
+            return@withContext LinkPreview(url, title, description = "", image)
+          }
+        } catch (e: Exception) {
+          e.printStackTrace()
+        }
+      }
+    } catch (e: Exception) {
+      e.printStackTrace()
+    }
+    return@withContext null
+  }
+}
+
+
+
+@Composable
+fun ComposeLinkView(linkPreview: LinkPreview?, cancelPreview: () -> Unit) {
+  Row(
+    Modifier.fillMaxWidth().padding(top = 8.dp).background(SentColorLight),
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    if (linkPreview == null) {
+      Box(
+        Modifier.fillMaxWidth().weight(1f).height(60.dp).padding(start = 16.dp),
+        contentAlignment = Alignment.CenterStart
+      ) {
+        CircularProgressIndicator(
+          Modifier.size(16.dp),
+          color = HighOrLowlight,
+          strokeWidth = 2.dp
+        )
+      }
+    } else {
+      val imageBitmap = base64ToBitmap(linkPreview.image).asImageBitmap()
+      Image(
+        imageBitmap,
+        stringResource(R.string.image_descr_link_preview),
+        modifier = Modifier.width(80.dp).height(60.dp).padding(end = 8.dp)
+      )
+      Column(Modifier.fillMaxWidth().weight(1F)) {
+        Text(linkPreview.title, maxLines = 1, overflow = TextOverflow.Ellipsis)
+        Text(
+          linkPreview.uri, maxLines = 1, overflow = TextOverflow.Ellipsis,
+          style = MaterialTheme.typography.body2
+        )
+      }
+    }
+    IconButton(onClick = cancelPreview, modifier = Modifier.padding(0.dp)) {
+      Icon(
+        Icons.Outlined.Close,
+        contentDescription = stringResource(R.string.icon_descr_cancel_link_preview),
+        tint = MaterialTheme.colors.primary,
+        modifier = Modifier.padding(10.dp)
+      )
+    }
+  }
+}
+
+@Composable
+fun ChatItemLinkView(linkPreview: LinkPreview) {
+  Column {
+    Image(
+      base64ToBitmap(linkPreview.image).asImageBitmap(),
+      stringResource(R.string.image_descr_link_preview),
+      modifier = Modifier.fillMaxWidth(),
+      contentScale = ContentScale.FillWidth,
+    )
+    Column(Modifier.padding(top = 6.dp).padding(horizontal = 12.dp)) {
+      Text(linkPreview.title, maxLines = 3, overflow = TextOverflow.Ellipsis, lineHeight = 22.sp, modifier = Modifier.padding(bottom = 4.dp))
+      if (linkPreview.description != "") {
+        Text(linkPreview.description, maxLines = 12, overflow = TextOverflow.Ellipsis, fontSize = 14.sp, lineHeight = 20.sp)
+      }
+      Text(linkPreview.uri, maxLines = 1, overflow = TextOverflow.Ellipsis, fontSize = 12.sp, color = HighOrLowlight)
+    }
+  }
+}
+
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "ChatItemLinkView (Dark Mode)"
+)
+@Composable
+fun PreviewChatItemLinkView() {
+  SimpleXTheme {
+    ChatItemLinkView(LinkPreview.sampleData)
+  }
+}
+
+@Preview(showBackground = true)
+@Preview(
+  uiMode = Configuration.UI_MODE_NIGHT_YES,
+  showBackground = true,
+  name = "ComposeLinkView (Dark Mode)"
+)
+@Composable
+fun PreviewComposeLinkView() {
+  SimpleXTheme {
+    ComposeLinkView(LinkPreview.sampleData) { -> }
+  }
+}
+
+@Preview(showBackground = true)
+@Composable
+fun PreviewComposeLinkViewLoading() {
+  SimpleXTheme {
+    ComposeLinkView(null) { -> }
+  }
+}