Merge remote-tracking branch 'origin/pq' into ab/compression-cleanup

* core (pq): update types

* imports

* encode / max msg size types

* integrate new types

* update types/pq support

* tests compile

---------

Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com>

Dockerfile

@@ -1,32 +1,41 @@
-FROM ubuntu:focal AS build
+ARG TAG=22.04
 
-# Install curl and simplex-chat-related dependencies
-RUN apt-get update && apt-get install -y curl git build-essential libgmp3-dev zlib1g-dev libssl-dev
+FROM ubuntu:${TAG} AS build
+
+### Build stage
+
+# Install curl and git and simplex-chat dependencies
+RUN apt-get update && apt-get install -y curl git build-essential libgmp3-dev zlib1g-dev llvm-12 llvm-12-dev libnuma-dev libssl-dev
+
+# Specify bootstrap Haskell versions
+ENV BOOTSTRAP_HASKELL_GHC_VERSION=9.6.3
+ENV BOOTSTRAP_HASKELL_CABAL_VERSION=3.10.1.0
 
 # Install ghcup
-RUN a=$(arch); curl https://downloads.haskell.org/~ghcup/$a-linux-ghcup -o /usr/bin/ghcup && \
-    chmod +x /usr/bin/ghcup
-
-# Install ghc
-RUN ghcup install ghc 9.6.3
-# Install cabal
-RUN ghcup install cabal 3.10.1.0
-# Set both as default
-RUN ghcup set ghc 9.6.3 && \
-    ghcup set cabal 3.10.1.0
-
-COPY . /project
-WORKDIR /project
+RUN curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 sh
 
 # Adjust PATH
 ENV PATH="/root/.cabal/bin:/root/.ghcup/bin:$PATH"
 
+# Set both as default
+RUN ghcup set ghc "${BOOTSTRAP_HASKELL_GHC_VERSION}" && \
+    ghcup set cabal "${BOOTSTRAP_HASKELL_CABAL_VERSION}"
+
+COPY . /project
+WORKDIR /project
+
 # Adjust build
 RUN cp ./scripts/cabal.project.local.linux ./cabal.project.local
 
 # Compile simplex-chat
 RUN cabal update
-RUN cabal install
+RUN cabal build exe:simplex-chat
 
+# Strip the binary from debug symbols to reduce size
+RUN bin=$(find /project/dist-newstyle -name "simplex-chat" -type f -executable) && \
+    mv "$bin" ./ && \
+    strip ./simplex-chat
+
+# Copy compiled app from build stage
 FROM scratch AS export-stage
-COPY --from=build /root/.cabal/bin/simplex-chat /
+COPY --from=build /project/simplex-chat /

PRIVACY.md

@@ -1,134 +1,168 @@
-# SimpleX Chat Terms & Privacy Policy
+# SimpleX Chat Privacy Policy and Conditions of Use
 
-SimpleX Chat is the first communication platform that has no user profile IDs of any kind, not even random numbers. 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 cannot observe your connections graph.
+SimpleX Chat is the first communication network based on a new protocol stack that builds on the same ideas of complete openness and decentralization as email and web, with the focus on providing security and privacy of communications, and without compromising on usability.
 
-If you believe that some of the clauses in this document are not aligned with our mission or principles, please raise it with us via [email](chat@simplex.chat) or [chat](https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23%2F%3Fv%3D1%26dh%3DMCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%253D%26srv%3Dbylepyau3ty4czmn77q4fglvperknl4bi2eb2fdy2bh4jxtf32kf73yd.onion).
+SimpleX Chat communication protocol is the first protocol that has no user profile IDs of any kind, not even random numbers, cryptographic keys or hashes that identify the users. SimpleX Chat apps allow their users to send messages and files via relay server infrastructure. Relay server owners and providers do not have any access to your messages, thanks to double-ratchet end-to-end encryption algorithm (also known as Signal algorithm - do not confuse with Signal protocols or platform) and additional encryption layers, and they also have no access to your profile and contacts - as they do not provide any user accounts.
+
+Double ratchet algorithm has such important properties as [forward secrecy](./docs/GLOSSARY.md#forward-secrecy), sender [repudiation](./docs/GLOSSARY.md#) and break-in recovery (also known as [post-compromise security](./docs/GLOSSARY.md#post-compromise-security)).
+
+If you believe that any part of this document is not aligned with our mission or values, please raise it with us via [email](chat@simplex.chat) or [chat](https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23%2F%3Fv%3D1%26dh%3DMCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%253D%26srv%3Dbylepyau3ty4czmn77q4fglvperknl4bi2eb2fdy2bh4jxtf32kf73yd.onion).
 
 ## Privacy Policy
 
-SimpleX Chat Ltd. ("SimpleX Chat") uses the best industry practices for security and encryption to provide secure [end-to-end encrypted](./docs/GLOSSARY.md#end-to-end-encryption) messaging via private connections. This encryption cannot be compromised by the servers via [man-in-the-middle attack](./docs/GLOSSARY.md#man-in-the-middle-attack).
+SimpleX Chat Ltd uses the best industry practices for security and encryption to provide client and server software for secure [end-to-end encrypted](./docs/GLOSSARY.md#end-to-end-encryption) messaging via private connections. This encryption cannot be compromised by the relays servers, even if they are modified or compromised, via [man-in-the-middle attack](./docs/GLOSSARY.md#man-in-the-middle-attack), unlike most other communication platforms, services and networks.
 
-SimpleX Chat is built on top of SimpleX messaging and application platform that uses a new message routing protocol allowing to establish private connections 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.
+SimpleX Chat software is built on top of SimpleX messaging and application protocols, based on a new message routing protocol allowing to establish private connections without having any kind of addresses or other identifiers assigned to its users - it does not use emails, phone numbers, usernames, identity keys or any other user profile identifiers to pass messages between the user applications.
 
-SimpleX Chat security assessment was done in October 2022 by [Trail of Bits](https://www.trailofbits.com/about), and most fixes were released in v4.2.0 – see [the announcement](./blog/20221108-simplex-chat-v4.2-security-audit-new-website.md).
+SimpleX Chat software is similar in its design approach to email clients and browsers - it allows you to have full control of your data and freely choose the relay server providers, in the same way you choose which website or email provider to use, or use your own relay servers, simply by changing the configuration of the client software. The only current restriction to that is Apple push notifications - at the moment they can only be delivered via the preset servers that we operate, as explained below. We are exploring the solutions to deliver push notifications to iOS devices via other providers or users' own servers.
 
-### Information you provide
+While SimpleX Chat Ltd is not a communication service provider, and provide public preset relays "as is", as experimental, without any guarantees of availability or data retention, we are committed to maintain a high level of availability, reliability and security of these preset relays. We will be adding alternative preset infrastructure providers to the software in the future, and you will continue to be able to use any other providers or your own servers.
+
+We see users and data sovereignty, and device and provider portability as critically important properties for any communication system.
+
+SimpleX Chat security assessment was done in October 2022 by [Trail of Bits](https://www.trailofbits.com/about), and most fixes were released in v4.2 – see [the announcement](./blog/20221108-simplex-chat-v4.2-security-audit-new-website.md).
+
+### Your information
 
 #### User profiles
 
-We do not store user profiles. The profile you create in the app is local to your device.
+Servers used by SimpleX Chat apps do not create, store or identify user profiles. The profiles you can create in the app are local to your device, and can be removed at any time via the app.
 
-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.
+When you create the local profile, no records are created on any of the relay servers, and infrastructure providers, whether SimpleX Chat Ltd or any other, have no access to any part of your 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 your data and the private connections you created with other software users.
+
+You can transfer the profile to another device by creating a backup of the app data and restoring it on the new device, but you cannot use more than one device with the copy of the same profile at the same time - it will disrupt any active conversations on either or both devices, as a security property of end-to-end encryption.
 
 #### Messages and Files
 
-SimpleX Chat cannot decrypt or otherwise access the content or even the size of your messages and files you send or receive. Each message is padded to a fixed size of 16kb. Each file is sent in chunks of 256kb, 1mb or 8mb via all or some of the configured file servers. Both messages and files are sent end-to-end encrypted, and the servers do not have technical means to compromise this encryption, because part of the [key exchange](./docs/GLOSSARY.md#key-exchange) happens out-of-band.
+SimpleX relay servers cannot decrypt or otherwise access the content or even the size of your messages and files you send or receive. Each message is padded to a fixed size of 16kb. Each file is sent in chunks of 64kb, 256kb, 1mb or 8mb via all or some of the configured file relay servers. Both messages and files are sent end-to-end encrypted, and the servers do not have technical means to compromise this encryption, because part of the [key exchange](./docs/GLOSSARY.md#key-exchange) happens out-of-band.
 
-Your message history is stored only on your own device and the devices of your contacts. While the recipients' devices are offline SimpleX Chat temporarily stores end-to-end encrypted messages on the messaging (SMP) servers that are preset in the app or chosen by the users.
+Your message history is stored only on your own device and the devices of your contacts. While the recipients' devices are offline, messaging relay servers temporarily store end-to-end encrypted messages – you can configure which relay servers are used to receive the messages from the new contacts, and you can manually change them for the existing contacts too.
 
-The messages are permanently removed from the preset servers as soon as they are delivered. Undelivered messages are deleted after the time that is configured in the messaging servers you use (21 days for preset messaging servers).
+You do not have control over which servers are used to send messages to your contacts - they are chosen by them. To send messages your client needs to connect to these servers, therefore the servers chosen by your contacts can observe your IP address. You can use VPN or some overlay network (e.g., Tor) to hide your IP address from the servers chosen by your contacts. In the near future we will add the layer in the messaging protocol that will route sent message via the relays chosen by you as well.
 
-The files are stored on file (XFTP) servers for the time configured in the file servers you use (48 hours for preset file servers).
+The messages are permanently removed from the used relay servers as soon as they are delivered, as long as these servers used unmodified published code. Undelivered messages are deleted after the time that is configured in the messaging servers you use (21 days for preset messaging servers).
 
-If a messaging or file servers are restarted, the encrypted message or the record of the file can be stored in a backup file until it is overwritten by the next restart (usually within 1 week).
+The files are stored on file relay servers for the time configured in the relay servers you use (48 hours for preset file servers).
+
+If a messaging servers are restarted, the encrypted message can be stored in a backup file until it is overwritten by the next restart (usually within 1 week for preset relay servers).
+
+As this software is fully open-source and provided under AGPLv3 license, all infrastructure providers and owners, and the developers of the client and server applications who use the SimpleX Chat source code, are required to publish any changes to this software under the same AGPLv3 license - including any modifications to the provided servers.
+
+In addition to the AGPLv3 license terms, SimpleX Chat Ltd is committed to the software users that the preset relays that we provide via the apps will always be compiled from the [published open-source code](https://github.com/simplex-chat/simplexmq), without any modifications.
 
 #### Connections with other users
 
-When you create a connection with another user, two messaging queues (you can think about them as about mailboxes) are created on chosen messaging servers, that can be the preset servers or the servers that you configured in the app, in case it allows such configuration. SimpleX uses separate queues for direct and response messages, that the client applications prefer to create on two different servers, in case you have more than one server configured in the app, which is the default.
+When you create a connection with another user, two messaging queues (you can think about them as mailboxes) are created on messaging relay servers (chosen by you and your contact each), that can be the preset servers or the servers that you and your contact configured in the app. SimpleX messaging protocol uses separate queues for direct and response messages, and the apps prefer to create these queues on two different relay servers for increased privacy, in case you have more than one relay server configured in the app, which is the default.
 
-At the time of updating this document all our client applications allow configuring the servers. Our servers do not store information about which queues are linked to your profile on the device, and they do not collect any information that would allow us to establish that these queues are related to your device or your profile - the access to each queue is authorized by two anonymous unique cryptographic keys, different for each queue, and separate for sender and recipient of the messages.
+SimpleX relay servers do not store information about which queues are linked to your profile on the device, and they do not collect any information that would allow infrastructure owners and providers to establish that these queues are related to your device or your profile - the access to each queue is authorized by two anonymous unique cryptographic keys, different for each queue, and separate for sender and recipient of the messages.
+
+#### Connection links privacy
+
+When you create a connection with another user, the app generates a link/QR code that can be shared with the user to establish the connection via any channel (email, any other messenger, or a video call). This link is safe to share via insecure channels, as long as you can identify the recipient and also trust that this channel did not replace this link (to mitigate the latter risk you can validate the security code via the app).
+
+While the connection "links" contain SimpleX Chat Ltd domain name `simplex.chat`, this site is never accessed by the app, and is only used for these purposes:
+- to direct the new users to the app download instructions,
+- to show connection QR code that can be scanned via the app,
+- to "namespace" these links,
+- to open links directly in the installed app when it is clicked outside of the app.
+
+You can always safely replace the initial part of the link `https://simplex.chat/` either with `simplex:/` (which is a URI scheme provisionally registered with IANA) or with any other domain name where you can self-host the app download instructions and show the connection QR code (but in case it is your domain, it will not open in the app). Also, while the page renders QR code, all the information needed to render it is only available to the browser, as the part of the "link" after `#` symbol is not sent to the website server.
 
 #### iOS Push Notifications
 
 When you choose to use instant push notifications in SimpleX iOS app, because the design of push notifications requires storing the device token on notification server, the notifications server can observe how many messaging queues your device has notifications enabled for, and approximately how many messages are sent to each queue.
 
-Notification server cannot observe the actual addresses of these queues, as a separate address is used to subscribe to the notifications. It also cannot observe who, or even how many contacts, send messages to you, as notifications are delivered to your device end-to-end encrypted by the messaging servers.
+Preset notification server cannot observe the actual addresses of these queues, as a separate address is used to subscribe to the notifications. It also cannot observe who sends messages to you. Apple push notifications servers can only observe how many notifications are sent to you, but not from how many contacts, or from which messaging relays, as notifications are delivered to your device end-to-end encrypted by one of the preset notification servers - these notifications only contain end-to-end encrypted metadata, not even encrypted message content, and they look completely random to Apple push notification servers.
 
-It also does not allow to see message content or sizes, as the actual messages are not sent via the notification server, only the fact that the message is available and where it can be received from (the latter information is encrypted, so that the notification server cannot observe it). You can read more about the design of iOS push notifications [here](https://simplex.chat/blog/20220404-simplex-chat-instant-notifications.html#our-ios-approach-has-one-trade-off).
+You can read more about the design of iOS push notifications [here](https://simplex.chat/blog/20220404-simplex-chat-instant-notifications.html#our-ios-approach-has-one-trade-off).
 
 #### Another information stored on the servers
 
-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.
+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 design limits this additional technical information to the minimum required to operate the software and servers. To prevent server overloading or attacks, the servers can temporarily store data that can link to particular users or devices, including IP addresses, geographic location, or information related to the transport sessions. This information is not stored for the absolute majority of the app users, even for those who use the servers very actively.
 
-#### SimpleX Directory Service
+#### SimpleX Directory
 
-[SimpleX directory service](./docs/DIRECTORY.md) stores: your search requests, the messages and the members profiles in the group. You can connect to SimpleX Directory Service via [this address](https://simplex.chat/contact#/?v=1-4&smp=smp%3A%2F%2Fu2dS9sG8nMNURyZwqASV4yROM28Er0luVTx5X1CsMrU%3D%40smp4.simplex.im%2FeXSPwqTkKyDO3px4fLf1wx3MvPdjdLW3%23%2F%3Fv%3D1-2%26dh%3DMCowBQYDK2VuAyEAaiv6MkMH44L2TcYrt_CsX3ZvM11WgbMEUn0hkIKTOho%253D%26srv%3Do5vmywmrnaxalvz6wi3zicyftgio6psuvyniis6gco6bp6ekl4cqj4id.onion).
+[SimpleX Directory](./docs/DIRECTORY.md) stores: your search requests, the messages and the members profiles in the registered groups. You can connect to SimpleX Directory via [this address](https://simplex.chat/contact#/?v=1-4&smp=smp%3A%2F%2Fu2dS9sG8nMNURyZwqASV4yROM28Er0luVTx5X1CsMrU%3D%40smp4.simplex.im%2FeXSPwqTkKyDO3px4fLf1wx3MvPdjdLW3%23%2F%3Fv%3D1-2%26dh%3DMCowBQYDK2VuAyEAaiv6MkMH44L2TcYrt_CsX3ZvM11WgbMEUn0hkIKTOho%253D%26srv%3Do5vmywmrnaxalvz6wi3zicyftgio6psuvyniis6gco6bp6ekl4cqj4id.onion).
 
-#### User Support.
+#### 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](https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23%2F%3Fv%3D1%26dh%3DMCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%253D%26srv%3Dbylepyau3ty4czmn77q4fglvperknl4bi2eb2fdy2bh4jxtf32kf73yd.onion), when it is possible.
+If you contact SimpleX Chat Ltd, any personal data you 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](https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23%2F%3Fv%3D1%26dh%3DMCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%253D%26srv%3Dbylepyau3ty4czmn77q4fglvperknl4bi2eb2fdy2bh4jxtf32kf73yd.onion) when it is possible, and avoid sharing any personal information.
 
 ### 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.
+SimpleX Chat Ltd operates preset relay servers using third parties. While we do not have access and cannot share any user data, these third parties may access the encrypted user messages (but NOT the actual unencrypted message content or size) as it is stored or transmitted via our servers. Hosting providers can also store IP addresses and other transport information as part of their logs.
 
-We use a third party for email services - if you ask for support via email, your and SimpleX Chat email providers may access these emails according to their privacy policies and terms of service.
+We use a third party for email services - if you ask for support via email, your and SimpleX Chat Ltd email providers may access these emails according to their privacy policies and terms. When the request is sensitive, we recommend contacting us via SimpleX Chat or using encrypted email using PGP key published at [openpgp.org](https://keys.openpgp.org/search?q=chat%40simplex.chat).
 
-The cases when SimpleX Chat may need to share the data we temporarily store on the servers:
+The cases when SimpleX Chat Ltd may share the data temporarily stored 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 meet any applicable law, or enforceable governmental request or court order.
+- 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.
+- To protect against harm to the rights, property, or safety of software users, SimpleX Chat Ltd, or the public as required or permitted by law.
 
-At the time of updating this document, we have never provided or have been requested the access to our servers or any information from our servers by any third parties. If we are ever requested to provide such access or information, we will follow the due legal process.
+At the time of updating this document, we have never provided or have been requested the access to the preset relay servers or any information from the servers by any third parties. If we are ever requested to provide such access or information, we will follow the due legal process to limit any information shared with the third parties to the minimally required 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.
+We will update this Privacy Policy as needed so that it is current, accurate, and as clear as possible. Your continued use of our software applications and preset relays infrastructure confirms your acceptance of our updated Privacy Policy.
 
-Please also read our Terms of Service below.
+Please also read our Conditions of Use of Software and Infrastructure below.
 
 If you have questions about our Privacy Policy please contact us via [email](chat@simplex.chat) or [chat](https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23%2F%3Fv%3D1%26dh%3DMCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%253D%26srv%3Dbylepyau3ty4czmn77q4fglvperknl4bi2eb2fdy2bh4jxtf32kf73yd.onion).
 
-## Terms of Service
+## Conditions of Use of Software and Infrastructure
 
-You accept our Terms of Service ("Terms") by installing or using any of our apps or services ("Services").
+You accept the Conditions of Use of Software and Infrastructure ("Conditions") by installing or using any of our software or using any of our server infrastructure (collectively referred to as "Applications"), whether preset in the software or not.
 
-**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.
+**Minimal age**. You must be at least 13 years old to use our Applications. The minimum age to use our Applications 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 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 ciphertext 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.
+**Infrastructure**. Our Infrastructure includes preset messaging and file relay servers, and iOS push notification servers provided by SimpleX Chat Ltd for public use. Our infrastructure does not have any modifications from the [published open-source code](https://github.com/simplex-chat/simplexmq) available under AGPLv3 license. Any infrastructure provider, whether commercial or not, is required by the Affero clause (named after Affero Inc. company that pioneered the community-based Q&A sites in early 2000s) to publish any modifications under the same license. The statements in relation to Infrastructure and relay servers anywhere in this document assume no modifications to the published code, even in the cases when it is not explicitly stated.
 
-**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 user - 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.
+**Client applications**. Our client application Software (referred to as "app" or "apps") also has no modifications compared with published open-source code, and any developers of the alternative client apps based on our code are required to publish any modifications under the same AGPLv3 license. Client applications should not include any tracking or analytics code, and do not share any information with SimpleX Chat Ltd or any other third parties. If you ever discover any tracking or analytics code, please report it to us, so we can remove it.
 
-**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.
+**Accessing the infrastructure**. For the efficiency of the network access, the client Software by default accesses all queues your app creates on any relay server within one user profile via the same network (TCP/IP) connection. At the cost of additional traffic this configuration can be changed to use different transport session for each connection. Relay servers do not collect information about which queues were created or accessed via the same connection, so the relay servers cannot establish which queues belong to the same user profile. Whoever might observe your network traffic would know which relay 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 ciphertext in common, even inside TLS encryption layer. 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.
 
-**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.
+**Privacy of user data**. Servers do not retain any data we transmit for any longer than necessary to deliver the messages between apps. SimpleX Chat Ltd collects aggregate statistics across all its servers, as supported by published code and can be enabled by any infrastructure provider, but not any statistics per-user, or per geographic location, or per IP address, or per transport session. We do not have information about how many people use SimpleX Chat applications, we only know an approximate number of app installations and the aggregate traffic through the preset servers. In any case, we do not and will not sell or in any way monetize user data. Our future business model assumes charging for some optional Software features instead, in a transparent and fair 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.
+**Operating our Infrastructure**. For the purpose of using our Software, if you continue using preset servers, you agree that your end-to-end encrypted messages are transferred via the preset servers in any countries where we have or use facilities and service providers or partners. The information about geographic location of the servers will be made available in the apps in the near future.
 
-**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.
+**Software**. You agree to downloading and installing updates to our Applications when they are available; they would only be automatic if you configure your devices in this way.
 
-**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.
+**Traffic and device costs**. You are solely responsible for the traffic and device costs that you incur while using our Applications, and any associated taxes.
 
-**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.
+**Legal and acceptable usage**. You agree to use our Applications only for legal and acceptable purposes. You will not use (or assist others in using) our Applications in ways that: 1) violate or infringe the rights of Software users, SimpleX Chat Ltd, or others, including privacy, publicity, intellectual property, or other proprietary rights; 2) involve sending illegal or impermissible communications, e.g. spam. While we cannot access content or identify messages or groups, in some cases the links to the illegal or impermissible communications available via our Applications can be shared publicly on social media or websites. We reserve the right to remove such links from the preset servers and disrupt the conversations that send illegal content via our servers, whether they were reported by the users or discovered by our team.
 
-**Storing the messages on the device**. The messages are stored in the encrypted database on your device. Whether and how database passphrase is stored is determined by the configuration of the application you use. Legacy databases created prior to 2023 or in CLI (terminal) app may remain unencrypted, and it will be indicated in the app. In this case, if you make a backup of the app data and store it unencrypted, the backup provider may be able to access the messages. Please note, that the beta version of desktop app currently stores the database passphrase in the configuration file in plaintext, so you may need to remove passphrase from the device via the app configuration.
+**Damage to SimpleX Chat Ltd**. You must not (or assist others to) access, use, modify, distribute, transfer, or exploit our Applications in unauthorized manners, or in ways that harm Software users, SimpleX Chat Ltd, our Infrastructure, or any other systems. For example, you must not 1) access our Infrastructure or systems without authorization, in any way other than by using the Software; 2) disrupt the integrity or performance of our Infrastructure; 3) collect information about our users in any manner; or 4) sell, rent, or charge for our Infrastructure. This does not prohibit you from providing your own Infrastructure to others, whether free or for a fee, as long as you do not violate these Conditions and AGPLv3 license, including the requirement to publish any modifications of the relay server software.
 
-**Storing the files on the device**. The files are stored on your device unencrypted. If you make a backup of the app data and store it unencrypted, the backup provider will be able to access the files.
+**Keeping your data secure**. SimpleX Chat is the first communication software that aims to be 100% private by design - server software neither has the ability to access your messages, nor it has information about who you communicate with. That means that you are solely responsible for keeping your device, your user profile and any data safe and secure. If you lose your phone or remove the Software from the device, you will not be able to recover the lost data, unless you made a back up. To protect the data you need to make regular backups, as using old backups may disrupt your communication with some of the contacts.
 
-**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.
+**Storing the messages on the device**. The messages are stored in the encrypted database on your device. Whether and how database passphrase is stored is determined by the configuration of the Software you use. The databases created prior to 2023 or in CLI (terminal) app may remain unencrypted, and it will be indicated in the app interface. In this case, if you make a backup of the data and store it unencrypted, the backup provider may be able to access the messages. Please note, that the desktop apps can be configured to store the database passphrase in the configuration file in plaintext, and unless you set the passphrase when first running the app, a random passphrase will be used and stored on the device. You can remove it from the device via the app settings.
 
-**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.
+**Storing the files on the device**. The files currently sent and received in the apps by default (except CLI app) are stored on your device encrypted using unique keys, different for each file, that are stored in the database. Once the message that the file was attached to is removed, even if the copy of the encrypted file is retained, it should be impossible to recover the key allowing to decrypt the file. This local file encryption may affect app performance, and it can be disabled via the app settings. This change will only affect the new files. If you later re-enable the encryption, it will also affect only the new files. If you make a backup of the app data and store it unencrypted, the backup provider will be able to access any unencrypted files. In any case, irrespective of the storage setting, the files are always sent by all apps end-to-end encrypted.
 
-**Your Rights**. You own the messages and the 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. While there are various app features that allow deleting messages from the recipients' devices, such as _disappearing messages_ and _full message deletion_, their functioning on your recipients' devices cannot be guaranteed or enforced, as the device may be offline or have a modified version of the app.
+**No Access to Emergency Services**. Our Applications 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.
 
-**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 license](https://github.com/simplex-chat/simplex-chat/blob/stable/LICENSE)
+**Third-party services**. Our Applications may allow you to access, use, or interact with our or 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.
 
-**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.
+**Your Rights**. You own the messages and the information you transmit through our Applications. Your recipients are able to retain the messages they receive from you; there is no technical ability to delete data from their devices. While there are various app features that allow deleting messages from the recipients' devices, such as _disappearing messages_ and _full message deletion_, their functioning on your recipients' devices cannot be guaranteed or enforced, as the device may be offline or have a modified version of the Software. At the same time, repudiation property of the end-to-end encryption algorithm allows you to plausibly deny having sent the message, like you can deny what you said in a private face-to-face conversation, as the recipient cannot provide any proof to the third parties, by design.
 
-**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.
+**License**. SimpleX Chat Ltd grants you a limited, revocable, non-exclusive, and non-transferable license to use our Applications in accordance with these Conditions. The source-code of Applications is available and can be used under [AGPL v3 license](https://github.com/simplex-chat/simplex-chat/blob/stable/LICENSE).
 
-**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.
+**SimpleX Chat Ltd Rights**. We own all copyrights, trademarks, domains, logos, trade secrets, and other intellectual property rights associated with our Applications. 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.
 
-**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.
+**Disclaimers**. YOU USE OUR APPLICATIONS AT YOUR OWN RISK AND SUBJECT TO THE FOLLOWING DISCLAIMERS. WE PROVIDE OUR APPLICATIONS 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 CHAT LTD DOES NOT WARRANT THAT ANY INFORMATION PROVIDED BY US IS ACCURATE, COMPLETE, OR USEFUL, THAT OUR APPLICATIONS WILL BE OPERATIONAL, ERROR-FREE, SECURE, OR SAFE, OR THAT OUR APPLICATIONS WILL FUNCTION WITHOUT DISRUPTIONS, DELAYS, OR IMPERFECTIONS. WE DO NOT CONTROL, AND ARE NOT RESPONSIBLE FOR, CONTROLLING HOW OR WHEN OUR USERS USE OUR APPLICATIONS. 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.
 
-**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.
+**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 CONDITIONS, US, OR OUR APPLICATIONS, 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 CONDITIONS, US, OR OUR APPLICATIONS 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 CONDITIONS, IN SUCH CASES, THE LIABILITY OF THE SIMPLEX PARTIES WILL BE LIMITED TO THE EXTENT PERMITTED BY APPLICABLE LAW.
 
-**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.
+**Availability**. Our Applications may be disrupted, including for maintenance, upgrades, or network or equipment failures. We may discontinue some or all of our Applications, including certain features and the support for certain devices and platforms, at any time.
 
-**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.
+**Resolving disputes**. You agree to resolve any Claim you have with us relating to or arising from our Conditions, us, or our Applications 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 Conditions, as well as any disputes, whether in court or arbitration, which might arise between SimpleX Chat Ltd and you, without regard to conflict of law provisions.
 
-**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.
+**Changes to the conditions**. SimpleX Chat Ltd may update the Conditions from time to time. Your continued use of our Applications confirms your acceptance of our updated Conditions and supersedes any prior Conditions. You will comply with all applicable export control and trade sanctions laws. Our Conditions cover the entire agreement between you and SimpleX Chat Ltd regarding our Applications. If you do not agree with our Conditions, you should stop using our Applications.
 
-Updated August 17, 2023
+**Enforcing the conditions**. If we fail to enforce any of our Conditions, that does not mean we waive the right to enforce them. If any provision of the Conditions is deemed unlawful, void, or unenforceable, that provision shall be deemed severable from our Conditions and shall not affect the enforceability of the remaining provisions. Our Applications 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 Applications in any country. If you have specific questions about these Conditions, please contact us at chat@simplex.chat.
+
+**Ending these conditions**. You may end these Conditions with SimpleX Chat Ltd at any time by deleting our Applications from your devices and discontinuing use of our Infrastructure. The provisions related to Licenses, Disclaimers, Limitation of Liability, Resolving dispute, Availability, Changes to the conditions, Enforcing the conditions, and Ending these conditions will survive termination of your relationship with SimpleX Chat Ltd.
+
+Updated February 24, 2024

README.md

@@ -234,6 +234,8 @@ You can use SimpleX with your own servers and still communicate with people usin
 
 Recent and important updates:
 
+[Jan 24, 2024. SimpleX Chat: free infrastructure from Linode, v5.5 released with private notes, group history and a simpler UX to connect.](./blog/20240124-simplex-chat-infrastructure-costs-v5-5-simplex-ux-private-notes-group-history.md)
+
 [Nov 25, 2023. SimpleX Chat v5.4 released: link mobile and desktop apps via quantum resistant protocol, and much better groups](./blog/20231125-simplex-chat-v5-4-link-mobile-desktop-quantum-resistant-better-groups.md).
 
 [Sep 25, 2023. SimpleX Chat v5.3 released: desktop app, local file encryption, improved groups and directory service](./blog/20230925-simplex-chat-v5-3-desktop-app-local-file-encryption-directory-service.md).
@@ -299,7 +301,7 @@ What is already implemented:
 11. Transport isolation - different TCP connections and Tor circuits are used for traffic of different user profiles, optionally - for different contacts and group member connections.
 12. Manual messaging queue rotations to move conversation to another SMP relay.
 13. Sending end-to-end encrypted files using [XFTP protocol](https://simplex.chat/blog/20230301-simplex-file-transfer-protocol.html).
-14. Local files encryption, except videos (to be added later).
+14. Local files encryption.
 
 We plan to add:
 
@@ -371,12 +373,13 @@ Please also join [#simplex-devs](https://simplex.chat/contact#/?v=1-2&smp=smp%3A
 - ✅ Desktop client.
 - ✅ Encryption of local files stored in the app.
 - ✅ Using mobile profiles from the desktop app.
+- ✅ Private notes.
+- ✅ Improve sending videos (including encryption of locally stored videos).
 - 🏗 Improve experience for the new users.
 - 🏗 Post-quantum resistant key exchange in double ratchet protocol.
 - 🏗 Large groups, communities and public channels.
-- Message delivery relay for senders (to conceal IP address from the recipients' servers and to reduce the traffic).
+- 🏗 Message delivery relay for senders (to conceal IP address from the recipients' servers and to reduce the traffic).
 - Privacy & security slider - a simple way to set all settings at once.
-- Improve sending videos (including encryption of locally stored videos).
 - SMP queue redundancy and rotation (manual is supported).
 - Include optional message into connection request sent via contact address.
 - Improved navigation and search in the conversation (expand and scroll to quoted message, scroll to search results, etc.).

apps/ios/Shared/AppDelegate.swift

@@ -16,6 +16,7 @@ class AppDelegate: NSObject, UIApplicationDelegate {
         application.registerForRemoteNotifications()
         if #available(iOS 17.0, *) { trackKeyboard() }
         NotificationCenter.default.addObserver(self, selector: #selector(pasteboardChanged), name: UIPasteboard.changedNotification, object: nil)
+        removePasscodesIfReinstalled()
         return true
     }
 
@@ -127,6 +128,19 @@ class AppDelegate: NSObject, UIApplicationDelegate {
         BGManager.shared.receiveMessages(complete)
     }
 
+    private func removePasscodesIfReinstalled() {
+        // Check for the database existence, because app and self destruct passcodes
+        // will be saved and restored by iOS when a user deletes and re-installs the app.
+        // In this case the database and settings will be deleted, but the passcodes won't be.
+        // Deleting passcodes ensures that the user will not get stuck on "Opening app..." screen.
+        if (kcAppPassword.get() != nil || kcSelfDestructPassword.get() != nil) &&
+           !UserDefaults.standard.bool(forKey: DEFAULT_PERFORM_LA) && !hasDatabase() {
+            _ = kcAppPassword.remove()
+            _ = kcSelfDestructPassword.remove()
+            _ = kcDatabasePassword.remove()
+        }
+    }
+
     static func keepScreenOn(_ on: Bool) {
         UIApplication.shared.isIdleTimerDisabled = on
     }

apps/ios/Shared/ContentView.swift

@@ -34,6 +34,8 @@ struct ContentView: View {
     @State private var waitingForOrPassedAuth = true
     @State private var chatListActionSheet: ChatListActionSheet? = nil
 
+    private let callTopPadding: CGFloat = 50
+
     private enum ChatListActionSheet: Identifiable {
         case planAndConnectSheet(sheet: PlanAndConnectActionSheet)
 
@@ -50,16 +52,28 @@ struct ContentView: View {
 
     var body: some View {
         ZStack {
+            let showCallArea = chatModel.activeCall != nil && chatModel.activeCall?.callState != .waitCapabilities && chatModel.activeCall?.callState != .invitationAccepted
             // contentView() has to be in a single branch, so that enabling authentication doesn't trigger re-rendering and close settings.
             // i.e. with separate branches like this settings are closed: `if prefPerformLA { ... contentView() ... } else { contentView() }
             if !prefPerformLA || accessAuthenticated {
                 contentView()
+                    .padding(.top, showCallArea ? callTopPadding : 0)
             } else {
                 lockButton()
+                    .padding(.top, showCallArea ? callTopPadding : 0)
             }
+
+            if showCallArea, let call = chatModel.activeCall {
+                VStack {
+                    activeCallInteractiveArea(call)
+                    Spacer()
+                }
+            }
+
             if chatModel.showCallView, let call = chatModel.activeCall {
                 callView(call)
             }
+
             if !showSettings, let la = chatModel.laRequest {
                 LocalAuthView(authRequest: la)
                     .onDisappear {
@@ -135,11 +149,11 @@ struct ContentView: View {
             if case .onboardingComplete = step,
                chatModel.currentUser != nil {
                 mainView()
-                .actionSheet(item: $chatListActionSheet) { sheet in
-                    switch sheet {
-                    case let .planAndConnectSheet(sheet): return planAndConnectActionSheet(sheet, dismiss: false)
+                    .actionSheet(item: $chatListActionSheet) { sheet in
+                        switch sheet {
+                        case let .planAndConnectSheet(sheet): return planAndConnectActionSheet(sheet, dismiss: false)
+                        }
                     }
-                }
             } else {
                 OnboardingView(onboarding: step)
             }
@@ -163,6 +177,40 @@ struct ContentView: View {
         }
     }
 
+    @ViewBuilder private func activeCallInteractiveArea(_ call: Call) -> some View {
+        HStack {
+            Text(call.contact.displayName).font(.body).foregroundColor(.white)
+            Spacer()
+            CallDuration(call: call)
+        }
+        .padding(.horizontal)
+        .frame(height: callTopPadding - 10)
+        .background(Color(uiColor: UIColor(red: 47/255, green: 208/255, blue: 88/255, alpha: 1)))
+        .onTapGesture {
+            chatModel.activeCallViewIsCollapsed = false
+        }
+    }
+
+    struct CallDuration: View {
+        let call: Call
+        @State var text: String = ""
+        @State var timer: Timer? = nil
+
+        var body: some View {
+            Text(text).frame(minWidth: text.count <= 5 ? 52 : 77, alignment: .leading).offset(x: 4).font(.body).foregroundColor(.white)
+            .onAppear {
+                timer = Timer.scheduledTimer(withTimeInterval: 0.3, repeats: true) { timer in
+                    if let connectedAt = call.connectedAt {
+                        text = durationText(Int(Date.now.timeIntervalSince1970 - connectedAt.timeIntervalSince1970))
+                    }
+                }
+            }
+            .onDisappear {
+                _ = timer?.invalidate()
+            }
+        }
+    }
+
     private func lockButton() -> some View {
         Button(action: authenticateContentViewAccess) { Label("Unlock", systemImage: "lock") }
     }

apps/ios/Shared/Model/ChatModel.swift

@@ -80,6 +80,7 @@ final class ChatModel: ObservableObject {
     @Published var tokenRegistered = false
     @Published var tokenStatus: NtfTknStatus?
     @Published var notificationMode = NotificationsMode.off
+    @Published var notificationServer: String?
     @Published var notificationPreview: NotificationPreviewMode = ntfPreviewModeGroupDefault.get()
     // pending notification actions
     @Published var ntfContactRequest: NTFContactRequest?
@@ -89,6 +90,7 @@ final class ChatModel: ObservableObject {
     @Published var activeCall: Call?
     let callCommand: WebRTCCommandProcessor = WebRTCCommandProcessor()
     @Published var showCallView = false
+    @Published var activeCallViewIsCollapsed = false
     // remote desktop
     @Published var remoteCtrlSession: RemoteCtrlSession?
     // currently showing invitation

apps/ios/Shared/Model/SimpleXAPI.swift

@@ -252,18 +252,24 @@ func apiSetFilesFolder(filesFolder: String) throws {
     throw r
 }
 
-func setXFTPConfig(_ cfg: XFTPFileConfig?) throws {
-    let r = chatSendCmdSync(.apiSetXFTPConfig(config: cfg))
+func apiSetEncryptLocalFiles(_ enable: Bool) throws {
+    let r = chatSendCmdSync(.apiSetEncryptLocalFiles(enable: enable))
     if case .cmdOk = r { return }
     throw r
 }
 
-func apiSetEncryptLocalFiles(_ enable: Bool) throws {
-    let r = chatSendCmdSync(.apiSetEncryptLocalFiles(enable: enable))
+func apiSetPQEnabled(_ enable: Bool) throws {
+    let r = chatSendCmdSync(.apiSetPQEnabled(enable: enable))
     if case .cmdOk = r { return }
     throw r
 }
 
+func apiAllowContactPQ(_ contactId: Int64) async throws -> Contact {
+    let r = await chatSendCmd(.apiAllowContactPQ(contactId: contactId))
+    if case let .contactPQAllowed(_, contact) = r { return contact }
+    throw r
+}
+
 func apiExportArchive(config: ArchiveConfig) async throws {
     try await sendCommandOkResp(.apiExportArchive(config: config))
 }
@@ -412,14 +418,14 @@ func apiDeleteMemberChatItem(groupId: Int64, groupMemberId: Int64, itemId: Int64
     throw r
 }
 
-func apiGetNtfToken() -> (DeviceToken?, NtfTknStatus?, NotificationsMode) {
+func apiGetNtfToken() -> (DeviceToken?, NtfTknStatus?, NotificationsMode, String?) {
     let r = chatSendCmdSync(.apiGetNtfToken)
     switch r {
-    case let .ntfToken(token, status, ntfMode): return (token, status, ntfMode)
-    case .chatCmdError(_, .errorAgent(.CMD(.PROHIBITED))): return (nil, nil, .off)
+    case let .ntfToken(token, status, ntfMode, ntfServer): return (token, status, ntfMode, ntfServer)
+    case .chatCmdError(_, .errorAgent(.CMD(.PROHIBITED))): return (nil, nil, .off, nil)
     default:
         logger.debug("apiGetNtfToken response: \(String(describing: r))")
-        return (nil, nil, .off)
+        return (nil, nil, .off, nil)
     }
 }
 
@@ -1172,7 +1178,7 @@ func filterMembersToAdd(_ ms: [GMember]) -> [Contact] {
     let memberContactIds = ms.compactMap{ m in m.wrapped.memberCurrent ? m.wrapped.memberContactId : nil }
     return ChatModel.shared.chats
         .compactMap{ $0.chatInfo.contact }
-        .filter{ !memberContactIds.contains($0.apiId) }
+        .filter{ c in c.ready && c.active && !memberContactIds.contains(c.apiId) }
         .sorted{ $0.displayName.lowercased() < $1.displayName.lowercased() }
 }
 
@@ -1249,8 +1255,8 @@ func initializeChat(start: Bool, confirmStart: Bool = false, dbKey: String? = ni
     }
     try apiSetTempFolder(tempFolder: getTempFilesDirectory().path)
     try apiSetFilesFolder(filesFolder: getAppFilesDirectory().path)
-    try setXFTPConfig(getXFTPCfg())
     try apiSetEncryptLocalFiles(privacyEncryptLocalFilesGroupDefault.get())
+    try apiSetPQEnabled(pqExperimentalEnabledDefault.get())
     m.chatInitialized = true
     m.currentUser = try apiGetActiveUser()
     if m.currentUser == nil {
@@ -1309,7 +1315,7 @@ func startChat(refreshInvitations: Bool = true) throws {
         if (refreshInvitations) {
             try refreshCallInvitations()
         }
-        (m.savedToken, m.tokenStatus, m.notificationMode) = apiGetNtfToken()
+        (m.savedToken, m.tokenStatus, m.notificationMode, m.notificationServer) = apiGetNtfToken()
         // deviceToken is set when AppDelegate.application(didRegisterForRemoteNotificationsWithDeviceToken:) is called,
         // when it is called before startChat
         if let token = m.deviceToken {
@@ -1825,6 +1831,12 @@ func processReceivedMsg(_ res: ChatResponse) async {
                 }
             }
         }
+    case let .contactPQEnabled(user, contact, _):
+        if active(user) {
+            await MainActor.run {
+                m.updateContact(contact) // or updateContactConnectionStats?
+            }
+        }
     default:
         logger.debug("unsupported event: \(res.responseType)")
     }
@@ -1861,7 +1873,9 @@ func chatItemSimpleUpdate(_ user: any UserLike, _ aChatItem: AChatItem) async {
     let cItem = aChatItem.chatItem
     if active(user) {
         if await MainActor.run(body: { m.upsertChatItem(cInfo, cItem) }) {
-            NtfManager.shared.notifyMessageReceived(user, cInfo, cItem)
+            if cItem.showNotification {
+                NtfManager.shared.notifyMessageReceived(user, cInfo, cItem)
+            }
         }
     }
 }

apps/ios/Shared/Views/Call/ActiveCallView.swift

@@ -12,49 +12,67 @@ import SimpleXChat
 
 struct ActiveCallView: View {
     @EnvironmentObject var m: ChatModel
+    @Environment(\.colorScheme) var colorScheme
     @ObservedObject var call: Call
     @Environment(\.scenePhase) var scenePhase
     @State private var client: WebRTCClient? = nil
     @State private var activeCall: WebRTCClient.Call? = nil
     @State private var localRendererAspectRatio: CGFloat? = nil
     @Binding var canConnectCall: Bool
+    @State var prevColorScheme: ColorScheme = .dark
+    @State var pipShown = false
 
     var body: some View {
-        ZStack(alignment: .bottom) {
-            if let client = client, [call.peerMedia, call.localMedia].contains(.video), activeCall != nil {
-                GeometryReader { g in
-                    let width = g.size.width * 0.3
-                    ZStack(alignment: .topTrailing) {
-                        CallViewRemote(client: client, activeCall: $activeCall)
-                        CallViewLocal(client: client, activeCall: $activeCall, localRendererAspectRatio: $localRendererAspectRatio)
-                            .cornerRadius(10)
-                            .frame(width: width, height: width / (localRendererAspectRatio ?? 1))
-                            .padding([.top, .trailing], 17)
+        ZStack(alignment: .topLeading) {
+            ZStack(alignment: .bottom) {
+                if let client = client, [call.peerMedia, call.localMedia].contains(.video), activeCall != nil {
+                    GeometryReader { g in
+                        let width = g.size.width * 0.3
+                        ZStack(alignment: .topTrailing) {
+                            CallViewRemote(client: client, activeCall: $activeCall, activeCallViewIsCollapsed: $m.activeCallViewIsCollapsed, pipShown: $pipShown)
+                            CallViewLocal(client: client, activeCall: $activeCall, localRendererAspectRatio: $localRendererAspectRatio, pipShown: $pipShown)
+                                .cornerRadius(10)
+                                .frame(width: width, height: width / (localRendererAspectRatio ?? 1))
+                                .padding([.top, .trailing], 17)
+                            ZStack(alignment: .center) {
+                                // For some reason, when the view in GeometryReader and ZStack is visible, it steals clicks on a back button, so showing something on top like this with background color helps (.clear color doesn't work)
+                            }
+                            .frame(maxWidth: .infinity, maxHeight: .infinity)
+                            .background(Color.primary.opacity(0.000001))
+                        }
                     }
                 }
-            }
-            if let call = m.activeCall, let client = client {
-                ActiveCallOverlay(call: call, client: client)
+                if let call = m.activeCall, let client = client, (!pipShown || !call.supportsVideo) {
+                    ActiveCallOverlay(call: call, client: client)
+                }
             }
         }
+        .allowsHitTesting(!m.activeCallViewIsCollapsed)
+        .opacity(m.activeCallViewIsCollapsed ? 0 : 1)
         .onAppear {
             logger.debug("ActiveCallView: appear client is nil \(client == nil), scenePhase \(String(describing: scenePhase)), canConnectCall \(canConnectCall)")
             AppDelegate.keepScreenOn(true)
             createWebRTCClient()
             dismissAllSheets()
+            hideKeyboard()
+            prevColorScheme = colorScheme
         }
         .onChange(of: canConnectCall) { _ in
             logger.debug("ActiveCallView: canConnectCall changed to \(canConnectCall)")
             createWebRTCClient()
         }
+        .onChange(of: m.activeCallViewIsCollapsed) { _ in
+            hideKeyboard()
+        }
         .onDisappear {
             logger.debug("ActiveCallView: disappear")
             Task { await m.callCommand.setClient(nil) }
             AppDelegate.keepScreenOn(false)
             client?.endCall()
         }
-        .background(.black)
-        .preferredColorScheme(.dark)
+        .background(m.activeCallViewIsCollapsed ? .clear : .black)
+        // Quite a big delay when opening/closing the view when a scheme changes (globally) this way. It's not needed when CallKit is used since status bar is green with white text on it
+        .preferredColorScheme(m.activeCallViewIsCollapsed || CallController.useCallKit() ? prevColorScheme : .dark)
     }
 
     private func createWebRTCClient() {
@@ -69,8 +87,8 @@ struct ActiveCallView: View {
     @MainActor
     private func processRtcMessage(msg: WVAPIMessage) {
         if call == m.activeCall,
-            let call = m.activeCall,
-            let client = client {
+           let call = m.activeCall,
+           let client = client {
             logger.debug("ActiveCallView: response \(msg.resp.respType)")
             switch msg.resp {
             case let .capabilities(capabilities):
@@ -90,7 +108,7 @@ struct ActiveCallView: View {
                 Task {
                     do {
                         try await apiSendCallOffer(call.contact, offer, iceCandidates,
-                                               media: call.localMedia, capabilities: capabilities)
+                                                   media: call.localMedia, capabilities: capabilities)
                     } catch {
                         logger.error("apiSendCallOffer \(responseError(error))")
                     }
@@ -122,13 +140,15 @@ struct ActiveCallView: View {
                 if let callStatus = WebRTCCallStatus.init(rawValue: state.connectionState),
                    case .connected = callStatus {
                     call.direction == .outgoing
-                        ? CallController.shared.reportOutgoingCall(call: call, connectedAt: nil)
-                        : CallController.shared.reportIncomingCall(call: call, connectedAt: nil)
+                    ? CallController.shared.reportOutgoingCall(call: call, connectedAt: nil)
+                    : CallController.shared.reportIncomingCall(call: call, connectedAt: nil)
                     call.callState = .connected
+                    call.connectedAt = .now
                 }
                 if state.connectionState == "closed" {
                     closeCallView(client)
                     m.activeCall = nil
+                    m.activeCallViewIsCollapsed = false
                 }
                 Task {
                     do {
@@ -140,6 +160,7 @@ struct ActiveCallView: View {
             case let .connected(connectionInfo):
                 call.callState = .connected
                 call.connectionInfo = connectionInfo
+                call.connectedAt = .now
             case .ended:
                 closeCallView(client)
                 call.callState = .ended
@@ -153,6 +174,7 @@ struct ActiveCallView: View {
                 case .end:
                     closeCallView(client)
                     m.activeCall = nil
+                    m.activeCallViewIsCollapsed = false
                 default: ()
                 }
             case let .error(message):
@@ -181,7 +203,7 @@ struct ActiveCallOverlay: View {
         VStack {
             switch call.localMedia {
             case .video:
-                callInfoView(call, .leading)
+                videoCallInfoView(call)
                 .foregroundColor(.white)
                 .opacity(0.8)
                 .padding()
@@ -208,16 +230,25 @@ struct ActiveCallOverlay: View {
                 .frame(maxWidth: .infinity, alignment: .center)
 
             case .audio:
-                VStack {
-                    ProfileImage(imageStr: call.contact.profile.image)
-                        .scaledToFit()
-                        .frame(width: 192, height: 192)
-                    callInfoView(call, .center)
+                ZStack(alignment: .topLeading) {
+                    Button {
+                        chatModel.activeCallViewIsCollapsed = true
+                    } label: {
+                        Label("Back", systemImage: "chevron.left")
+                            .padding()
+                            .foregroundColor(.white.opacity(0.8))
+                    }
+                    VStack {
+                        ProfileImage(imageStr: call.contact.profile.image)
+                            .scaledToFit()
+                            .frame(width: 192, height: 192)
+                        audioCallInfoView(call)
+                    }
+                    .foregroundColor(.white)
+                    .opacity(0.8)
+                    .padding()
+                    .frame(maxHeight: .infinity)
                 }
-                .foregroundColor(.white)
-                .opacity(0.8)
-                .padding()
-                .frame(maxHeight: .infinity)
 
                 Spacer()
 
@@ -235,12 +266,12 @@ struct ActiveCallOverlay: View {
         .frame(maxWidth: .infinity)
     }
 
-    private func callInfoView(_ call: Call, _ alignment: Alignment) -> some View {
+    private func audioCallInfoView(_ call: Call) -> some View {
         VStack {
             Text(call.contact.chatViewName)
                 .lineLimit(1)
                 .font(.title)
-                .frame(maxWidth: .infinity, alignment: alignment)
+                .frame(maxWidth: .infinity, alignment: .center)
             Group {
                 Text(call.callState.text)
                 HStack {
@@ -251,7 +282,36 @@ struct ActiveCallOverlay: View {
                 }
             }
             .font(.subheadline)
-            .frame(maxWidth: .infinity, alignment: alignment)
+            .frame(maxWidth: .infinity, alignment: .center)
+        }
+    }
+
+    private func videoCallInfoView(_ call: Call) -> some View {
+        VStack {
+            Button {
+                chatModel.activeCallViewIsCollapsed = true
+            } label: {
+                HStack(alignment: .center, spacing: 16) {
+                    Image(systemName: "chevron.left")
+                        .resizable()
+                        .frame(width: 10, height: 18)
+                    Text(call.contact.chatViewName)
+                        .lineLimit(1)
+                        .font(.title)
+                        .frame(maxWidth: .infinity, alignment: .leading)
+                }
+            }
+            Group {
+                Text(call.callState.text)
+                HStack {
+                    Text(call.encryptionStatus)
+                    if let connInfo = call.connectionInfo {
+                        Text("(") + Text(connInfo.text) + Text(")")
+                    }
+                }
+            }
+            .font(.subheadline)
+            .frame(maxWidth: .infinity, alignment: .leading)
         }
     }
 

apps/ios/Shared/Views/Call/CallManager.swift

@@ -92,6 +92,7 @@ class CallManager {
         if case .ended = call.callState {
             logger.debug("CallManager.endCall: call ended")
             m.activeCall = nil
+            m.activeCallViewIsCollapsed = false
             m.showCallView = false
             completed()
         } else {
@@ -100,6 +101,7 @@ class CallManager {
                 await m.callCommand.processCommand(.end)
                 await MainActor.run {
                     m.activeCall = nil
+                    m.activeCallViewIsCollapsed = false
                     m.showCallView = false
                     completed()
                 }

apps/ios/Shared/Views/Call/CallViewRenderers.swift

@@ -6,14 +6,20 @@
 import SwiftUI
 import WebRTC
 import SimpleXChat
+import AVKit
 
 struct CallViewRemote: UIViewRepresentable {
     var client: WebRTCClient
     var activeCall: Binding<WebRTCClient.Call?>
+    @State var enablePip: (Bool) -> Void = {_ in }
+    @Binding var activeCallViewIsCollapsed: Bool
+    @Binding var pipShown: Bool
 
-    init(client: WebRTCClient, activeCall: Binding<WebRTCClient.Call?>) {
+    init(client: WebRTCClient, activeCall: Binding<WebRTCClient.Call?>, activeCallViewIsCollapsed: Binding<Bool>, pipShown: Binding<Bool>) {
         self.client = client
         self.activeCall = activeCall
+        self._activeCallViewIsCollapsed = activeCallViewIsCollapsed
+        self._pipShown = pipShown
     }
 
     func makeUIView(context: Context) -> UIView {
@@ -23,12 +29,120 @@ struct CallViewRemote: UIViewRepresentable {
             remoteRenderer.videoContentMode = .scaleAspectFill
             client.addRemoteRenderer(call, remoteRenderer)
             addSubviewAndResize(remoteRenderer, into: view)
+
+            if AVPictureInPictureController.isPictureInPictureSupported() {
+                makeViewWithRTCRenderer(call, remoteRenderer, view, context)
+            }
         }
         return view
     }
+    
+    func makeViewWithRTCRenderer(_ call: WebRTCClient.Call, _ remoteRenderer: RTCMTLVideoView, _ view: UIView, _ context: Context) {
+        let pipRemoteRenderer = RTCMTLVideoView(frame: view.frame)
+        pipRemoteRenderer.videoContentMode = .scaleAspectFill
+        
+        let pipVideoCallViewController = AVPictureInPictureVideoCallViewController()
+        pipVideoCallViewController.preferredContentSize = CGSize(width: 1080, height: 1920)
+        addSubviewAndResize(pipRemoteRenderer, into: pipVideoCallViewController.view)
+        let pipContentSource = AVPictureInPictureController.ContentSource(
+            activeVideoCallSourceView: view,
+            contentViewController: pipVideoCallViewController
+        )
+        
+        let pipController = AVPictureInPictureController(contentSource: pipContentSource)
+        pipController.canStartPictureInPictureAutomaticallyFromInline = true
+        pipController.delegate = context.coordinator
+        context.coordinator.pipController = pipController
+        context.coordinator.willShowHide = { show in
+            if show {
+                client.addRemoteRenderer(call, pipRemoteRenderer)
+                DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) {
+                    activeCallViewIsCollapsed = true
+                }
+            } else {
+                DispatchQueue.main.asyncAfter(deadline: .now() + 0.05) {
+                    activeCallViewIsCollapsed = false
+                }
+            }
+        }
+        context.coordinator.didShowHide = { show in
+            if show {
+                remoteRenderer.isHidden = true
+            } else {
+                client.removeRemoteRenderer(call, pipRemoteRenderer)
+                remoteRenderer.isHidden = false
+            }
+            pipShown = show
+        }
+        DispatchQueue.main.async {
+            enablePip = { enable in
+                if enable != pipShown /* pipController.isPictureInPictureActive */ {
+                    if enable {
+                        pipController.startPictureInPicture()
+                    } else {
+                        pipController.stopPictureInPicture()
+                    }
+                }
+            }
+        }
+    }
+    
+    func makeCoordinator() -> Coordinator {
+        Coordinator()
+    }
 
     func updateUIView(_ view: UIView, context: Context) {
         logger.debug("CallView.updateUIView remote")
+        DispatchQueue.main.async {
+            if activeCallViewIsCollapsed != pipShown {
+                enablePip(activeCallViewIsCollapsed)
+            }
+        }
+    }
+    
+    // MARK: - Coordinator
+    class Coordinator: NSObject, AVPictureInPictureControllerDelegate {
+        var pipController: AVPictureInPictureController? = nil
+        var willShowHide: (Bool) -> Void = { _ in }
+        var didShowHide: (Bool) -> Void = { _ in }
+        
+        func pictureInPictureControllerWillStartPictureInPicture(_ pictureInPictureController: AVPictureInPictureController) {
+            willShowHide(true)
+        }
+
+        func pictureInPictureControllerDidStartPictureInPicture(_ pictureInPictureController: AVPictureInPictureController) {
+            didShowHide(true)
+        }
+
+        func pictureInPictureController(_ pictureInPictureController: AVPictureInPictureController, failedToStartPictureInPictureWithError error: Error) {
+            logger.error("PiP failed to start: \(error.localizedDescription)")
+        }
+        
+        func pictureInPictureControllerWillStopPictureInPicture(_ pictureInPictureController: AVPictureInPictureController) {
+            willShowHide(false)
+        }
+        
+        func pictureInPictureControllerDidStopPictureInPicture(_ pictureInPictureController: AVPictureInPictureController) {
+            didShowHide(false)
+        }
+
+        deinit {
+            pipController?.stopPictureInPicture()
+            pipController?.canStartPictureInPictureAutomaticallyFromInline = false
+            pipController?.contentSource = nil
+            pipController?.delegate = nil
+            pipController = nil
+        }
+    }
+    
+    class SampleBufferVideoCallView: UIView {
+        override class var layerClass: AnyClass {
+            get { return AVSampleBufferDisplayLayer.self }
+        }
+        
+        var sampleBufferDisplayLayer: AVSampleBufferDisplayLayer {
+            return layer as! AVSampleBufferDisplayLayer
+        }
     }
 }
 
@@ -36,11 +150,14 @@ struct CallViewLocal: UIViewRepresentable {
     var client: WebRTCClient
     var activeCall: Binding<WebRTCClient.Call?>
     var localRendererAspectRatio: Binding<CGFloat?>
+    @State var pipStateChanged: (Bool) -> Void = {_ in }
+    @Binding var pipShown: Bool
 
-    init(client: WebRTCClient, activeCall: Binding<WebRTCClient.Call?>, localRendererAspectRatio: Binding<CGFloat?>) {
+    init(client: WebRTCClient, activeCall: Binding<WebRTCClient.Call?>, localRendererAspectRatio: Binding<CGFloat?>, pipShown: Binding<Bool>) {
         self.client = client
         self.activeCall = activeCall
         self.localRendererAspectRatio = localRendererAspectRatio
+        self._pipShown = pipShown
     }
 
     func makeUIView(context: Context) -> UIView {
@@ -50,12 +167,18 @@ struct CallViewLocal: UIViewRepresentable {
             client.addLocalRenderer(call, localRenderer)
             client.startCaptureLocalVideo(call)
             addSubviewAndResize(localRenderer, into: view)
+            DispatchQueue.main.async {
+                pipStateChanged = { shown in
+                    localRenderer.isHidden = shown
+                }
+            }
         }
         return view
     }
 
     func updateUIView(_ view: UIView, context: Context) {
         logger.debug("CallView.updateUIView local")
+        pipStateChanged(pipShown)
     }
 }
 

apps/ios/Shared/Views/Call/WebRTC.swift

@@ -28,6 +28,7 @@ class Call: ObservableObject, Equatable {
     @Published var speakerEnabled = false
     @Published var videoEnabled: Bool
     @Published var connectionInfo: ConnectionInfo?
+    @Published var connectedAt: Date? = nil
 
     init(
         direction: CallDirection,
@@ -59,6 +60,7 @@ class Call: ObservableObject, Equatable {
         }
     }
     var hasMedia: Bool { get { callState == .offerSent || callState == .negotiated || callState == .connected } }
+    var supportsVideo: Bool { get { peerMedia == .video || localMedia == .video } }
 }
 
 enum CallDirection {

apps/ios/Shared/Views/Call/WebRTCClient.swift

@@ -331,6 +331,10 @@ final class WebRTCClient: NSObject, RTCVideoViewDelegate, RTCFrameEncryptorDeleg
         activeCall.remoteStream?.add(renderer)
     }
 
+    func removeRemoteRenderer(_ activeCall: Call, _ renderer: RTCVideoRenderer) {
+        activeCall.remoteStream?.remove(renderer)
+    }
+
     func startCaptureLocalVideo(_ activeCall: Call) {
 #if targetEnvironment(simulator)
         guard
@@ -410,6 +414,7 @@ final class WebRTCClient: NSObject, RTCVideoViewDelegate, RTCFrameEncryptorDeleg
         guard let call = activeCall.wrappedValue else { return }
         logger.debug("WebRTCClient: ending the call")
         activeCall.wrappedValue = nil
+        (call.localCamera as? RTCCameraVideoCapturer)?.stopCapture()
         call.connection.close()
         call.connection.delegate = nil
         call.frameEncryptor?.delegate = nil

apps/ios/Shared/Views/Chat/ChatInfoView.swift

@@ -103,6 +103,7 @@ struct ChatInfoView: View {
     @State private var sendReceipts = SendReceipts.userDefault(true)
     @State private var sendReceiptsUserDefault = true
     @AppStorage(DEFAULT_DEVELOPER_TOOLS) private var developerTools = false
+    @AppStorage(GROUP_DEFAULT_PQ_EXPERIMENTAL_ENABLED, store: groupDefaults) private var pqExperimentalEnabled = false
 
     enum ChatInfoViewAlert: Identifiable {
         case clearChatAlert
@@ -110,6 +111,7 @@ struct ChatInfoView: View {
         case switchAddressAlert
         case abortSwitchAddressAlert
         case syncConnectionForceAlert
+        case allowContactPQEncryptionAlert
         case error(title: LocalizedStringKey, error: LocalizedStringKey = "")
 
         var id: String {
@@ -119,6 +121,7 @@ struct ChatInfoView: View {
             case .switchAddressAlert: return "switchAddressAlert"
             case .abortSwitchAddressAlert: return "abortSwitchAddressAlert"
             case .syncConnectionForceAlert: return "syncConnectionForceAlert"
+            case .allowContactPQEncryptionAlert: return "allowContactPQEncryptionAlert"
             case let .error(title, _): return "error \(title)"
             }
         }
@@ -165,6 +168,22 @@ struct ChatInfoView: View {
                 }
                 .disabled(!contact.ready || !contact.active)
 
+                if pqExperimentalEnabled,
+                   let conn = contact.activeConn {
+                    Section {
+                        infoRow(Text(String("PQ E2E encryption")), conn.connPQEnabled ? "Enabled" : "Disabled")
+                        if !conn.enablePQ {
+                            allowPQButton()
+                        }
+                    } header: {
+                        Text(String("Post-quantum E2E encryption"))
+                    } footer: {
+                        if !conn.enablePQ {
+                            Text(String("After allowing post-quantum encryption, it will be enabled after several messages if your contact also allows it."))
+                        }
+                    }
+                }
+
                 if let contactLink = contact.contactLink {
                     Section {
                         SimpleXLinkQRCode(uri: contactLink)
@@ -237,6 +256,7 @@ struct ChatInfoView: View {
             case .switchAddressAlert: return switchAddressAlert(switchContactAddress)
             case .abortSwitchAddressAlert: return abortSwitchAddressAlert(abortSwitchContactAddress)
             case .syncConnectionForceAlert: return syncConnectionForceAlert({ syncContactConnection(force: true) })
+            case .allowContactPQEncryptionAlert: return allowContactPQEncryptionAlert()
             case let .error(title, error): return mkAlert(title: title, message: error)
             }
         }
@@ -410,6 +430,15 @@ struct ChatInfoView: View {
         }
     }
 
+    private func allowPQButton() -> some View {
+        Button {
+            alert = .allowContactPQEncryptionAlert
+        } label: {
+            Label(String("Allow PQ encryption"), systemImage: "exclamationmark.triangle")
+                .foregroundColor(.orange)
+        }
+    }
+
     private func networkStatusRow() -> some View {
         HStack {
             Text("Network status")
@@ -543,6 +572,34 @@ struct ChatInfoView: View {
             }
         }
     }
+
+    private func allowContactPQEncryption() {
+        Task {
+            do {
+                let ct = try await apiAllowContactPQ(contact.apiId)
+                contact = ct
+                await MainActor.run {
+                    chatModel.updateContact(contact)
+                    dismiss()
+                }
+            } catch let error {
+                logger.error("allowContactPQEncryption apiAllowContactPQ error: \(responseError(error))")
+                let a = getErrorAlert(error, "Error allowing contact PQ encryption")
+                await MainActor.run {
+                    alert = .error(title: a.title, error: a.message)
+                }
+            }
+        }
+    }
+
+    func allowContactPQEncryptionAlert() -> Alert {
+        Alert(
+            title: Text(String("Allow post-quantum encryption?")),
+            message: Text(String("This is an experimental feature, it is not recommended to enable it for high importance communications. It may result in connection errors!")),
+            primaryButton: .destructive(Text(String("Allow")), action: allowContactPQEncryption),
+            secondaryButton: .cancel()
+        )
+    }
 }
 
 func switchAddressAlert(_ switchAddress: @escaping () -> Void) -> Alert {

apps/ios/Shared/Views/Chat/ChatItem/CIImageView.swift

@@ -29,6 +29,9 @@ struct CIImageView: View {
                     FullScreenMediaView(chatItem: chatItem, image: uiImage, showView: $showFullScreenImage, scrollProxy: scrollProxy)
                 }
                 .onTapGesture { showFullScreenImage = true }
+                .onChange(of: m.activeCallViewIsCollapsed) { _ in
+                    showFullScreenImage = false
+                }
             } else if let data = Data(base64Encoded: dropImagePrefix(image)),
                       let uiImage = UIImage(data: data) {
                 imageView(uiImage)

apps/ios/Shared/Views/Chat/ChatItem/CIVideoView.swift

@@ -120,6 +120,9 @@ struct CIVideoView: View {
                         showFullScreenPlayer = urlDecrypted != nil
                     }
                 }
+                .onChange(of: m.activeCallViewIsCollapsed) { _ in
+                    showFullScreenPlayer = false
+                }
                 if !decryptionInProgress {
                     Button {
                         decrypt(file: file) {
@@ -168,6 +171,9 @@ struct CIVideoView: View {
                     default: ()
                     }
                 }
+                .onChange(of: m.activeCallViewIsCollapsed) { _ in
+                    showFullScreenPlayer = false
+                }
                 if !videoPlaying {
                     Button {
                         m.stopPreviousRecPlay = url

apps/ios/Shared/Views/Chat/ChatItem/MarkedDeletedItemView.swift

@@ -65,6 +65,8 @@ struct MarkedDeletedItemView: View {
         }
     }
 
+    // same texts are in markedDeletedText in ChatPreviewView, but it returns String;
+    // can be refactored into a single function if functions calling these are changed to return same type
     var markedDeletedText: LocalizedStringKey {
         switch chatItem.meta.itemDeleted {
         case let .moderated(_, byGroupMember): "moderated by \(byGroupMember.displayName)"

apps/ios/Shared/Views/Chat/ChatItemView.swift

@@ -111,6 +111,11 @@ struct ChatItemContentView<Content: View>: View {
         case .rcvModerated: deletedItemView()
         case .rcvBlocked: deletedItemView()
         case let .invalidJSON(json): CIInvalidJSONView(json: json)
+        // TODO proper items
+        case .sndDirectE2EEInfo: CIEventView(eventText: Text(chatItem.content.text))
+        case .rcvDirectE2EEInfo: CIEventView(eventText: Text(chatItem.content.text))
+        case .sndGroupE2EEInfo: CIEventView(eventText: Text(chatItem.content.text))
+        case .rcvGroupE2EEInfo: CIEventView(eventText: Text(chatItem.content.text))
         }
     }
 

apps/ios/Shared/Views/Chat/ChatView.swift

@@ -159,12 +159,17 @@ struct ChatView: View {
                 switch cInfo {
                 case let .direct(contact):
                     HStack {
-                        if contact.allowsFeature(.calls) {
-                            callButton(contact, .audio, imageName: "phone")
-                                .disabled(!contact.ready || !contact.active)
+                        let callsPrefEnabled = contact.mergedPreferences.calls.enabled.forUser
+                        if callsPrefEnabled {
+                            if chatModel.activeCall == nil {
+                                callButton(contact, .audio, imageName: "phone")
+                                    .disabled(!contact.ready || !contact.active)
+                            } else if let call = chatModel.activeCall, call.contact.id == cInfo.id {
+                                endCallButton(call)
+                            }
                         }
                         Menu {
-                            if contact.allowsFeature(.calls) {
+                            if callsPrefEnabled && chatModel.activeCall == nil {
                                 Button {
                                     CallController.shared.startCall(contact, .video)
                                 } label: {
@@ -421,7 +426,19 @@ struct ChatView: View {
             Image(systemName: imageName)
         }
     }
-    
+
+    private func endCallButton(_ call: Call) -> some View {
+        Button {
+            if let uuid = call.callkitUUID {
+                CallController.shared.endCall(callUUID: uuid)
+            } else {
+                CallController.shared.endCall(call: call) {}
+            }
+        } label: {
+            Image(systemName: "phone.down.fill").tint(.red)
+        }
+    }
+
     private func searchButton() -> some View {
         Button {
             searchMode = true
@@ -748,7 +765,9 @@ struct ChatView: View {
                 if ci.meta.editable && !mc.isVoice && !live {
                     menu.append(editAction(ci))
                 }
-                menu.append(viewInfoUIAction(ci))
+                if !ci.isLiveDummy {
+                    menu.append(viewInfoUIAction(ci))
+                }
                 if revealed {
                     menu.append(hideUIAction())
                 }

apps/ios/Shared/Views/Chat/ComposeMessage/ComposeView.swift

@@ -978,6 +978,9 @@ struct ComposeView: View {
     }
 
     private func cancelLinkPreview() {
+        if let pendingLink = pendingLinkUrl?.absoluteString {
+            cancelledLinks.insert(pendingLink)
+        }
         if let uri = composeState.linkPreview?.uri.absoluteString {
             cancelledLinks.insert(uri)
         }

apps/ios/Shared/Views/Chat/Group/GroupChatInfoView.swift

@@ -234,39 +234,29 @@ struct GroupChatInfoView: View {
                 Spacer()
                 memberInfo(member)
             }
-
-            // revert from this:
+            
             if user {
                 v
-            } else if member.canBeRemoved(groupInfo: groupInfo) {
-                removeSwipe(member, blockSwipe(member, v))
+            } else if groupInfo.membership.memberRole >= .admin {
+                // TODO if there are more actions, refactor with lists of swipeActions
+                let canBlockForAll = member.canBlockForAll(groupInfo: groupInfo)
+                let canRemove = member.canBeRemoved(groupInfo: groupInfo)
+                if canBlockForAll && canRemove {
+                    removeSwipe(member, blockForAllSwipe(member, v))
+                } else if canBlockForAll {
+                    blockForAllSwipe(member, v)
+                } else if canRemove {
+                    removeSwipe(member, v)
+                } else {
+                    v
+                }
             } else {
-                blockSwipe(member, v)
+                if !member.blockedByAdmin {
+                    blockSwipe(member, v)
+                } else {
+                    v
+                }
             }
-            // revert to this: vvv
-//            if user {
-//                v
-//            } else if groupInfo.membership.memberRole >= .admin {
-//                // TODO if there are more actions, refactor with lists of swipeActions
-//                let canBlockForAll = member.canBlockForAll(groupInfo: groupInfo)
-//                let canRemove = member.canBeRemoved(groupInfo: groupInfo)
-//                if canBlockForAll && canRemove {
-//                    removeSwipe(member, blockForAllSwipe(member, v))
-//                } else if canBlockForAll {
-//                    blockForAllSwipe(member, v)
-//                } else if canRemove {
-//                    removeSwipe(member, v)
-//                } else {
-//                    v
-//                }
-//            } else {
-//                if !member.blockedByAdmin {
-//                    blockSwipe(member, v)
-//                } else {
-//                    v
-//                }
-//            }
-            // ^^^
         }
 
         @ViewBuilder private func memberInfo(_ member: GroupMember) -> some View {
@@ -370,7 +360,11 @@ struct GroupChatInfoView: View {
 
     private func addOrEditWelcomeMessage() -> some View {
         NavigationLink {
-            GroupWelcomeView(groupId: groupInfo.groupId, groupInfo: $groupInfo)
+            GroupWelcomeView(
+                groupInfo: $groupInfo,
+                groupProfile: groupInfo.groupProfile,
+                welcomeText: groupInfo.groupProfile.description ?? ""
+            )
             .navigationTitle("Welcome message")
             .navigationBarTitleDisplayMode(.large)
         } label: {

apps/ios/Shared/Views/Chat/Group/GroupMemberInfoView.swift

@@ -168,24 +168,11 @@ struct GroupMemberInfoView: View {
                         }
                     }
 
-                    // revert from this:
-                    Section {
-                        if member.memberSettings.showMessages {
-                            blockMemberButton(member)
-                        } else {
-                            unblockMemberButton(member)
-                        }
-                        if member.canBeRemoved(groupInfo: groupInfo) {
-                            removeMemberButton(member)
-                        }
+                    if groupInfo.membership.memberRole >= .admin {
+                        adminDestructiveSection(member)
+                    } else {
+                        nonAdminBlockSection(member)
                     }
-                    // revert to this: vvv
-//                    if groupInfo.membership.memberRole >= .admin {
-//                        adminDestructiveSection(member)
-//                    } else {
-//                        nonAdminBlockSection(member)
-//                    }
-                    // ^^^
 
                     if developerTools {
                         Section("For console") {

apps/ios/Shared/Views/Chat/Group/GroupWelcomeView.swift

@@ -11,29 +11,32 @@ import SimpleXChat
 
 struct GroupWelcomeView: View {
     @Environment(\.dismiss) var dismiss: DismissAction
-    @EnvironmentObject private var m: ChatModel
-    var groupId: Int64
     @Binding var groupInfo: GroupInfo
-    @State private var welcomeText: String = ""
+    @State var groupProfile: GroupProfile
+    @State var welcomeText: String
     @State private var editMode = true
     @FocusState private var keyboardVisible: Bool
     @State private var showSaveDialog = false
 
+    let maxByteCount = 1200
+
     var body: some View {
         VStack {
             if groupInfo.canEdit {
                 editorView()
                     .modifier(BackButton {
-                        if welcomeText == groupInfo.groupProfile.description || (welcomeText == "" && groupInfo.groupProfile.description == nil) {
+                        if welcomeTextUnchanged() {
                             dismiss()
                         } else {
                             showSaveDialog = true
                         }
                     })
-                    .confirmationDialog("Save welcome message?", isPresented: $showSaveDialog) {
-                        Button("Save and update group profile") {
-                            save()
-                            dismiss()
+                    .confirmationDialog(
+                        welcomeTextFitsLimit() ? "Save welcome message?" : "Welcome message is too long",
+                        isPresented: $showSaveDialog
+                    ) {
+                        if welcomeTextFitsLimit() {
+                            Button("Save and update group profile") { save() }
                         }
                         Button("Exit without saving") { dismiss() }
                     }
@@ -47,14 +50,15 @@ struct GroupWelcomeView: View {
             }
         }
         .onAppear {
-            welcomeText = groupInfo.groupProfile.description ?? ""
-            keyboardVisible = true
+            DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
+                keyboardVisible = true
+            }
         }
     }
 
     private func textPreview() -> some View {
         messageText(welcomeText, parseSimpleXMarkdown(welcomeText), nil, showSecrets: false)
-            .frame(minHeight: 140, alignment: .topLeading)
+            .frame(minHeight: 130, alignment: .topLeading)
             .frame(maxWidth: .infinity, alignment: .leading)
     }
 
@@ -74,7 +78,7 @@ struct GroupWelcomeView: View {
                         }
                         .padding(.horizontal, -5)
                         .padding(.top, -8)
-                        .frame(height: 140, alignment: .topLeading)
+                        .frame(height: 130, alignment: .topLeading)
                         .frame(maxWidth: .infinity, alignment: .leading)
                     }
                 } else {
@@ -93,6 +97,9 @@ struct GroupWelcomeView: View {
                 }
                 .disabled(welcomeText.isEmpty)
                 copyButton()
+            } footer: {
+                Text(!welcomeTextFitsLimit() ? "Message too large" : "")
+                    .foregroundColor(.red)
             }
 
             Section {
@@ -113,7 +120,15 @@ struct GroupWelcomeView: View {
         Button("Save and update group profile") {
             save()
         }
-        .disabled(welcomeText == groupInfo.groupProfile.description || (welcomeText == "" && groupInfo.groupProfile.description == nil))
+        .disabled(welcomeTextUnchanged() || !welcomeTextFitsLimit())
+    }
+
+    private func welcomeTextUnchanged() -> Bool {
+        welcomeText == groupInfo.groupProfile.description || (welcomeText == "" && groupInfo.groupProfile.description == nil)
+    }
+
+    private func welcomeTextFitsLimit() -> Bool {
+        chatJsonLength(welcomeText) <= maxByteCount
     }
 
     private func save() {
@@ -123,11 +138,13 @@ struct GroupWelcomeView: View {
                 if welcome?.count == 0 {
                     welcome = nil
                 }
-                var groupProfileUpdated = groupInfo.groupProfile
-                groupProfileUpdated.description = welcome
-                groupInfo = try await apiUpdateGroup(groupId, groupProfileUpdated)
-                m.updateGroup(groupInfo)
-                welcomeText = welcome ?? ""
+                groupProfile.description = welcome
+                let gInfo = try await apiUpdateGroup(groupInfo.groupId, groupProfile)
+                await MainActor.run {
+                    groupInfo = gInfo
+                    ChatModel.shared.updateGroup(gInfo)
+                    dismiss()
+                }
             } catch let error {
                 logger.error("apiUpdateGroup error: \(responseError(error))")
             }
@@ -137,6 +154,6 @@ struct GroupWelcomeView: View {
 
 struct GroupWelcomeView_Previews: PreviewProvider {
     static var previews: some View {
-        GroupWelcomeView(groupId: 1, groupInfo: Binding.constant(GroupInfo.sampleData))
+        GroupProfileView(groupInfo: Binding.constant(GroupInfo.sampleData), groupProfile: GroupProfile.sampleData)
     }
 }

apps/ios/Shared/Views/ChatList/ChatPreviewView.swift

@@ -34,7 +34,7 @@ struct ChatPreviewView: View {
                 HStack(alignment: .top) {
                     chatPreviewTitle()
                     Spacer()
-                    (cItem?.timestampText ?? formatTimestampText(chat.chatInfo.updatedAt))
+                    (cItem?.timestampText ?? formatTimestampText(chat.chatInfo.chatTs))
                         .font(.subheadline)
                         .frame(minWidth: 60, alignment: .trailing)
                         .foregroundColor(.secondary)
@@ -171,10 +171,21 @@ struct ChatPreviewView: View {
     }
 
     func chatItemPreview(_ cItem: ChatItem) -> Text {
-        let itemText = cItem.meta.itemDeleted == nil ? cItem.text : NSLocalizedString("marked deleted", comment: "marked deleted chat item preview text")
+        let itemText = cItem.meta.itemDeleted == nil ? cItem.text : markedDeletedText()
         let itemFormattedText = cItem.meta.itemDeleted == nil ? cItem.formattedText : nil
         return messageText(itemText, itemFormattedText, cItem.memberDisplayName, icon: attachment(), preview: true, showSecrets: false)
 
+        // same texts are in markedDeletedText in MarkedDeletedItemView, but it returns LocalizedStringKey;
+        // can be refactored into a single function if functions calling these are changed to return same type
+        func markedDeletedText() -> String {
+            switch cItem.meta.itemDeleted {
+            case let .moderated(_, byGroupMember): String.localizedStringWithFormat(NSLocalizedString("moderated by %@", comment: "marked deleted chat item preview text"), byGroupMember.displayName)
+            case .blocked: NSLocalizedString("blocked", comment: "marked deleted chat item preview text")
+            case .blockedByAdmin: NSLocalizedString("blocked by admin", comment: "marked deleted chat item preview text")
+            case .deleted, nil: NSLocalizedString("marked deleted", comment: "marked deleted chat item preview text")
+            }
+        }
+
         func attachment() -> String? {
             switch cItem.content.msgContent {
             case .file: return "doc.fill"

apps/ios/Shared/Views/UserSettings/DeveloperView.swift

@@ -12,6 +12,7 @@ import SimpleXChat
 struct DeveloperView: View {
     @AppStorage(DEFAULT_DEVELOPER_TOOLS) private var developerTools = false
     @AppStorage(GROUP_DEFAULT_CONFIRM_DB_UPGRADES, store: groupDefaults) private var confirmDatabaseUpgrades = false
+    @AppStorage(GROUP_DEFAULT_PQ_EXPERIMENTAL_ENABLED, store: groupDefaults) private var pqExperimentalEnabled = false
     @Environment(\.colorScheme) var colorScheme
 
     var body: some View {
@@ -43,27 +44,32 @@ struct DeveloperView: View {
                     (developerTools ? Text("Show:") : Text("Hide:")) + Text(" ") + Text("Database IDs and Transport isolation option.")
                 }
 
-//                Section {
-//                    settingsRow("arrow.up.doc") {
-//                        Toggle("Send videos and files via XFTP", isOn: $xftpSendEnabled)
-//                            .onChange(of: xftpSendEnabled) { _ in
-//                                do {
-//                                    try setXFTPConfig(getXFTPCfg())
-//                                } catch {
-//                                    logger.error("setXFTPConfig: cannot set XFTP config \(responseError(error))")
-//                                }
-//                            }
-//                    }
-//                } header: {
-//                    Text("Experimental")
-//                } footer: {
-//                    if xftpSendEnabled {
-//                        Text("v4.6.1+ is required to receive via XFTP.")
-//                    }
-//                }
+                if developerTools {
+                    Section {
+                        settingsRow("key") {
+                            Toggle("Post-quantum E2EE", isOn: $pqExperimentalEnabled)
+                                .onChange(of: pqExperimentalEnabled) {
+                                    setPQExperimentalEnabled($0)
+                                }
+                        }
+                    } header: {
+                        Text(String("Experimental"))
+                    } footer: {
+                        Text(String("In this version applies only to new contacts."))
+                    }
+                }
             }
         }
     }
+
+    private func setPQExperimentalEnabled(_ enable: Bool) {
+        do {
+            try apiSetPQEnabled(enable)
+        } catch let error {
+            let err = responseError(error)
+            logger.error("apiSetPQEnabled \(err)")
+        }
+    }
 }
 
 struct DeveloperView_Previews: PreviewProvider {

apps/ios/Shared/Views/UserSettings/NotificationsView.swift

@@ -76,6 +76,10 @@ struct NotificationsView: View {
                         Text(m.notificationPreview.label)
                     }
                 }
+
+                if let server = m.notificationServer {
+                    smpServers("Push server", [server])
+                }
             } header: {
                 Text("Push notifications")
             } footer: {
@@ -87,6 +91,9 @@ struct NotificationsView: View {
             }
         }
         .disabled(legacyDatabase)
+        .onAppear {
+            (m.savedToken, m.tokenStatus, m.notificationMode, m.notificationServer) = apiGetNtfToken()
+        }
     }
 
     private func notificationAlert(_ alert: NotificationAlert, _ token: DeviceToken) -> Alert {
@@ -125,6 +132,7 @@ struct NotificationsView: View {
                         m.tokenStatus = .new
                         notificationMode = .off
                         m.notificationMode = .off
+                        m.notificationServer = nil
                     }
                 } catch let error {
                     await MainActor.run {
@@ -135,11 +143,13 @@ struct NotificationsView: View {
                 }
             default:
                 do {
-                    let status = try await apiRegisterToken(token: token, notificationMode: mode)
+                    let _ = try await apiRegisterToken(token: token, notificationMode: mode)
+                    let (_, tknStatus, ntfMode, ntfServer) = apiGetNtfToken()
                     await MainActor.run {
-                        m.tokenStatus = status
-                        notificationMode = mode
-                        m.notificationMode = mode
+                        m.tokenStatus = tknStatus
+                        notificationMode = ntfMode
+                        m.notificationMode = ntfMode
+                        m.notificationServer = ntfServer
                     }
                 } catch let error {
                     await MainActor.run {

apps/ios/SimpleX NSE/NotificationService.swift

@@ -453,7 +453,6 @@ var receiverStarted = false
 let startLock = DispatchSemaphore(value: 1)
 let suspendLock = DispatchSemaphore(value: 1)
 var networkConfig: NetCfg = getNetCfg()
-let xftpConfig: XFTPFileConfig? = getXFTPCfg()
 
 // startChat uses semaphore startLock to ensure that only one didReceive thread can start chat controller
 // Subsequent calls to didReceive will be waiting on semaphore and won't start chat again, as it will be .active
@@ -499,7 +498,6 @@ func doStartChat() -> DBMigrationResult? {
             try setNetworkConfig(networkConfig)
             try apiSetTempFolder(tempFolder: getTempFilesDirectory().path)
             try apiSetFilesFolder(filesFolder: getAppFilesDirectory().path)
-            try setXFTPConfig(xftpConfig)
             try apiSetEncryptLocalFiles(privacyEncryptLocalFilesGroupDefault.get())
             // prevent suspension while starting chat
             suspendLock.wait()
@@ -733,12 +731,6 @@ func apiSetFilesFolder(filesFolder: String) throws {
     throw r
 }
 
-func setXFTPConfig(_ cfg: XFTPFileConfig?) throws {
-    let r = sendSimpleXCmd(.apiSetXFTPConfig(config: cfg))
-    if case .cmdOk = r { return }
-    throw r
-}
-
 func apiSetEncryptLocalFiles(_ enable: Bool) throws {
     let r = sendSimpleXCmd(.apiSetEncryptLocalFiles(enable: enable))
     if case .cmdOk = r { return }

apps/ios/SimpleX.xcodeproj/project.pbxproj

@@ -61,11 +61,11 @@
 		5C7505A527B679EE00BE3227 /* NavLinkPlain.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C7505A427B679EE00BE3227 /* NavLinkPlain.swift */; };
 		5C7505A827B6D34800BE3227 /* ChatInfoToolbar.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C7505A727B6D34800BE3227 /* ChatInfoToolbar.swift */; };
 		5C764E89279CBCB3000C6508 /* ChatModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C764E88279CBCB3000C6508 /* ChatModel.swift */; };
-		5C83A1AD2B5EF67D00AE0A4A /* libgmp.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C83A1A82B5EF67D00AE0A4A /* libgmp.a */; };
-		5C83A1AE2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3-ghc9.6.3.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C83A1A92B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3-ghc9.6.3.a */; };
-		5C83A1AF2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C83A1AA2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3.a */; };
-		5C83A1B02B5EF67D00AE0A4A /* libffi.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C83A1AB2B5EF67D00AE0A4A /* libffi.a */; };
-		5C83A1B12B5EF67D00AE0A4A /* libgmpxx.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C83A1AC2B5EF67D00AE0A4A /* libgmpxx.a */; };
+		5C777BD82B99B38B00C72EFF /* libgmp.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C777BD32B99B38B00C72EFF /* libgmp.a */; };
+		5C777BD92B99B38B00C72EFF /* libgmpxx.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C777BD42B99B38B00C72EFF /* libgmpxx.a */; };
+		5C777BDA2B99B38B00C72EFF /* libffi.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C777BD52B99B38B00C72EFF /* libffi.a */; };
+		5C777BDB2B99B38B00C72EFF /* libHSsimplex-chat-5.5.6.0-AiwFoGVZWFALIHlLc8SJrg-ghc9.6.3.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C777BD62B99B38B00C72EFF /* libHSsimplex-chat-5.5.6.0-AiwFoGVZWFALIHlLc8SJrg-ghc9.6.3.a */; };
+		5C777BDC2B99B38B00C72EFF /* libHSsimplex-chat-5.5.6.0-AiwFoGVZWFALIHlLc8SJrg.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5C777BD72B99B38B00C72EFF /* libHSsimplex-chat-5.5.6.0-AiwFoGVZWFALIHlLc8SJrg.a */; };
 		5C8F01CD27A6F0D8007D2C8D /* CodeScanner in Frameworks */ = {isa = PBXBuildFile; productRef = 5C8F01CC27A6F0D8007D2C8D /* CodeScanner */; };
 		5C93292F29239A170090FFF9 /* ProtocolServersView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C93292E29239A170090FFF9 /* ProtocolServersView.swift */; };
 		5C93293129239BED0090FFF9 /* ProtocolServerView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5C93293029239BED0090FFF9 /* ProtocolServerView.swift */; };
@@ -325,11 +325,11 @@
 		5C7505A427B679EE00BE3227 /* NavLinkPlain.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NavLinkPlain.swift; sourceTree = "<group>"; };
 		5C7505A727B6D34800BE3227 /* ChatInfoToolbar.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatInfoToolbar.swift; sourceTree = "<group>"; };
 		5C764E88279CBCB3000C6508 /* ChatModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatModel.swift; sourceTree = "<group>"; };
-		5C83A1A82B5EF67D00AE0A4A /* libgmp.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libgmp.a; sourceTree = "<group>"; };
-		5C83A1A92B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3-ghc9.6.3.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = "libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3-ghc9.6.3.a"; sourceTree = "<group>"; };
-		5C83A1AA2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = "libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3.a"; sourceTree = "<group>"; };
-		5C83A1AB2B5EF67D00AE0A4A /* libffi.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libffi.a; sourceTree = "<group>"; };
-		5C83A1AC2B5EF67D00AE0A4A /* libgmpxx.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libgmpxx.a; sourceTree = "<group>"; };
+		5C777BD32B99B38B00C72EFF /* libgmp.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libgmp.a; sourceTree = "<group>"; };
+		5C777BD42B99B38B00C72EFF /* libgmpxx.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libgmpxx.a; sourceTree = "<group>"; };
+		5C777BD52B99B38B00C72EFF /* libffi.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = libffi.a; sourceTree = "<group>"; };
+		5C777BD62B99B38B00C72EFF /* libHSsimplex-chat-5.5.6.0-AiwFoGVZWFALIHlLc8SJrg-ghc9.6.3.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = "libHSsimplex-chat-5.5.6.0-AiwFoGVZWFALIHlLc8SJrg-ghc9.6.3.a"; sourceTree = "<group>"; };
+		5C777BD72B99B38B00C72EFF /* libHSsimplex-chat-5.5.6.0-AiwFoGVZWFALIHlLc8SJrg.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; path = "libHSsimplex-chat-5.5.6.0-AiwFoGVZWFALIHlLc8SJrg.a"; sourceTree = "<group>"; };
 		5C84FE9129A216C800D95B1A /* nl */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = nl; path = nl.lproj/Localizable.strings; sourceTree = "<group>"; };
 		5C84FE9329A2179C00D95B1A /* nl */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = nl; path = "nl.lproj/SimpleX--iOS--InfoPlist.strings"; sourceTree = "<group>"; };
 		5C84FE9429A2179C00D95B1A /* nl */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = nl; path = nl.lproj/InfoPlist.strings; sourceTree = "<group>"; };
@@ -514,13 +514,13 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				5C777BD92B99B38B00C72EFF /* libgmpxx.a in Frameworks */,
+				5C777BDB2B99B38B00C72EFF /* libHSsimplex-chat-5.5.6.0-AiwFoGVZWFALIHlLc8SJrg-ghc9.6.3.a in Frameworks */,
 				5CE2BA93284534B000EC33A6 /* libiconv.tbd in Frameworks */,
-				5C83A1B02B5EF67D00AE0A4A /* libffi.a in Frameworks */,
-				5C83A1AD2B5EF67D00AE0A4A /* libgmp.a in Frameworks */,
-				5C83A1AE2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3-ghc9.6.3.a in Frameworks */,
-				5C83A1AF2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3.a in Frameworks */,
+				5C777BD82B99B38B00C72EFF /* libgmp.a in Frameworks */,
+				5C777BDA2B99B38B00C72EFF /* libffi.a in Frameworks */,
 				5CE2BA94284534BB00EC33A6 /* libz.tbd in Frameworks */,
-				5C83A1B12B5EF67D00AE0A4A /* libgmpxx.a in Frameworks */,
+				5C777BDC2B99B38B00C72EFF /* libHSsimplex-chat-5.5.6.0-AiwFoGVZWFALIHlLc8SJrg.a in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -582,11 +582,11 @@
 		5C764E5C279C70B7000C6508 /* Libraries */ = {
 			isa = PBXGroup;
 			children = (
-				5C83A1AB2B5EF67D00AE0A4A /* libffi.a */,
-				5C83A1A82B5EF67D00AE0A4A /* libgmp.a */,
-				5C83A1AC2B5EF67D00AE0A4A /* libgmpxx.a */,
-				5C83A1A92B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3-ghc9.6.3.a */,
-				5C83A1AA2B5EF67D00AE0A4A /* libHSsimplex-chat-5.5.0.4-HTW6wkBBAjO2GDtnvnI9O3.a */,
+				5C777BD52B99B38B00C72EFF /* libffi.a */,
+				5C777BD32B99B38B00C72EFF /* libgmp.a */,
+				5C777BD42B99B38B00C72EFF /* libgmpxx.a */,
+				5C777BD62B99B38B00C72EFF /* libHSsimplex-chat-5.5.6.0-AiwFoGVZWFALIHlLc8SJrg-ghc9.6.3.a */,
+				5C777BD72B99B38B00C72EFF /* libHSsimplex-chat-5.5.6.0-AiwFoGVZWFALIHlLc8SJrg.a */,
 			);
 			path = Libraries;
 			sourceTree = "<group>";
@@ -1509,7 +1509,7 @@
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = "SimpleX (iOS).entitlements";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 194;
+				CURRENT_PROJECT_VERSION = 201;
 				DEVELOPMENT_TEAM = 5NN7GUYB6T;
 				ENABLE_BITCODE = NO;
 				ENABLE_PREVIEWS = YES;
@@ -1531,7 +1531,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 5.5;
+				MARKETING_VERSION = 5.5.6;
 				PRODUCT_BUNDLE_IDENTIFIER = chat.simplex.app;
 				PRODUCT_NAME = SimpleX;
 				SDKROOT = iphoneos;
@@ -1552,7 +1552,7 @@
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_ENTITLEMENTS = "SimpleX (iOS).entitlements";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 194;
+				CURRENT_PROJECT_VERSION = 201;
 				DEVELOPMENT_TEAM = 5NN7GUYB6T;
 				ENABLE_BITCODE = NO;
 				ENABLE_PREVIEWS = YES;
@@ -1574,7 +1574,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 5.5;
+				MARKETING_VERSION = 5.5.6;
 				PRODUCT_BUNDLE_IDENTIFIER = chat.simplex.app;
 				PRODUCT_NAME = SimpleX;
 				SDKROOT = iphoneos;
@@ -1633,7 +1633,7 @@
 				CODE_SIGN_ENTITLEMENTS = "SimpleX NSE/SimpleX NSE.entitlements";
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 194;
+				CURRENT_PROJECT_VERSION = 201;
 				DEVELOPMENT_TEAM = 5NN7GUYB6T;
 				ENABLE_BITCODE = NO;
 				GENERATE_INFOPLIST_FILE = YES;
@@ -1646,7 +1646,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 5.5;
+				MARKETING_VERSION = 5.5.6;
 				PRODUCT_BUNDLE_IDENTIFIER = "chat.simplex.app.SimpleX-NSE";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -1665,7 +1665,7 @@
 				CODE_SIGN_ENTITLEMENTS = "SimpleX NSE/SimpleX NSE.entitlements";
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 194;
+				CURRENT_PROJECT_VERSION = 201;
 				DEVELOPMENT_TEAM = 5NN7GUYB6T;
 				ENABLE_BITCODE = NO;
 				GENERATE_INFOPLIST_FILE = YES;
@@ -1678,7 +1678,7 @@
 					"@executable_path/Frameworks",
 					"@executable_path/../../Frameworks",
 				);
-				MARKETING_VERSION = 5.5;
+				MARKETING_VERSION = 5.5.6;
 				PRODUCT_BUNDLE_IDENTIFIER = "chat.simplex.app.SimpleX-NSE";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -1697,7 +1697,7 @@
 				APPLICATION_EXTENSION_API_ONLY = YES;
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 194;
+				CURRENT_PROJECT_VERSION = 201;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = 5NN7GUYB6T;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -1721,7 +1721,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Libraries/sim",
 				);
-				MARKETING_VERSION = 5.5;
+				MARKETING_VERSION = 5.5.6;
 				PRODUCT_BUNDLE_IDENTIFIER = chat.simplex.SimpleXChat;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SDKROOT = iphoneos;
@@ -1743,7 +1743,7 @@
 				APPLICATION_EXTENSION_API_ONLY = YES;
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 194;
+				CURRENT_PROJECT_VERSION = 201;
 				DEFINES_MODULE = YES;
 				DEVELOPMENT_TEAM = 5NN7GUYB6T;
 				DYLIB_COMPATIBILITY_VERSION = 1;
@@ -1767,7 +1767,7 @@
 					"$(inherited)",
 					"$(PROJECT_DIR)/Libraries/sim",
 				);
-				MARKETING_VERSION = 5.5;
+				MARKETING_VERSION = 5.5.6;
 				PRODUCT_BUNDLE_IDENTIFIER = chat.simplex.SimpleXChat;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SDKROOT = iphoneos;

apps/ios/SimpleXChat/API.swift

@@ -105,6 +105,11 @@ public func parseSimpleXMarkdown(_ s: String) -> [FormattedText]? {
     return nil
 }
 
+public func chatJsonLength(_ s: String) -> Int {
+    var c = s.cString(using: .utf8)!
+    return Int(chat_json_length(&c))
+}
+
 struct ParsedMarkdown: Decodable {
     var formattedText: [FormattedText]?
 }

apps/ios/SimpleXChat/APITypes.swift

@@ -31,8 +31,9 @@ public enum ChatCommand {
     case apiSuspendChat(timeoutMicroseconds: Int)
     case setTempFolder(tempFolder: String)
     case setFilesFolder(filesFolder: String)
-    case apiSetXFTPConfig(config: XFTPFileConfig?)
     case apiSetEncryptLocalFiles(enable: Bool)
+    case apiSetPQEnabled(enable: Bool)
+    case apiAllowContactPQ(contactId: Int64)
     case apiExportArchive(config: ArchiveConfig)
     case apiImportArchive(config: ArchiveConfig)
     case apiDeleteStorage
@@ -162,12 +163,9 @@ public enum ChatCommand {
             case let .apiSuspendChat(timeoutMicroseconds): return "/_app suspend \(timeoutMicroseconds)"
             case let .setTempFolder(tempFolder): return "/_temp_folder \(tempFolder)"
             case let .setFilesFolder(filesFolder): return "/_files_folder \(filesFolder)"
-            case let .apiSetXFTPConfig(cfg): if let cfg = cfg {
-                return "/_xftp on \(encodeJSON(cfg))"
-            } else {
-                return "/_xftp off"
-            }
             case let .apiSetEncryptLocalFiles(enable): return "/_files_encrypt \(onOff(enable))"
+            case let .apiSetPQEnabled(enable): return "/_pq \(onOff(enable))"
+            case let .apiAllowContactPQ(contactId): return "/_pq allow \(contactId)"
             case let .apiExportArchive(cfg): return "/_db export \(encodeJSON(cfg))"
             case let .apiImportArchive(cfg): return "/_db import \(encodeJSON(cfg))"
             case .apiDeleteStorage: return "/_db delete"
@@ -311,8 +309,9 @@ public enum ChatCommand {
             case .apiSuspendChat: return "apiSuspendChat"
             case .setTempFolder: return "setTempFolder"
             case .setFilesFolder: return "setFilesFolder"
-            case .apiSetXFTPConfig: return "apiSetXFTPConfig"
             case .apiSetEncryptLocalFiles: return "apiSetEncryptLocalFiles"
+            case .apiSetPQEnabled: return "apiSetPQEnabled"
+            case .apiAllowContactPQ: return "apiAllowContactPQ"
             case .apiExportArchive: return "apiExportArchive"
             case .apiImportArchive: return "apiImportArchive"
             case .apiDeleteStorage: return "apiDeleteStorage"
@@ -613,7 +612,7 @@ public enum ChatResponse: Decodable, Error {
     case callEnded(user: UserRef, contact: Contact)
     case callInvitations(callInvitations: [RcvCallInvitation])
     case ntfTokenStatus(status: NtfTknStatus)
-    case ntfToken(token: DeviceToken, status: NtfTknStatus, ntfMode: NotificationsMode)
+    case ntfToken(token: DeviceToken, status: NtfTknStatus, ntfMode: NotificationsMode, ntfServer: String)
     case ntfMessages(user_: User?, connEntity_: ConnectionEntity?, msgTs: Date?, ntfMessages: [NtfMsgInfo])
     case ntfMessage(user: UserRef, connEntity: ConnectionEntity, ntfMessage: NtfMsgInfo)
     case contactConnectionDeleted(user: UserRef, connection: PendingContactConnection)
@@ -624,6 +623,9 @@ public enum ChatResponse: Decodable, Error {
     case remoteCtrlSessionCode(remoteCtrl_: RemoteCtrlInfo?, sessionCode: String)
     case remoteCtrlConnected(remoteCtrl: RemoteCtrlInfo)
     case remoteCtrlStopped(rcsState: RemoteCtrlSessionState, rcStopReason: RemoteCtrlStopReason)
+    // pq
+    case contactPQAllowed(user: UserRef, contact: Contact)
+    case contactPQEnabled(user: UserRef, contact: Contact, pqEnabled: Bool)
     // misc
     case versionInfo(versionInfo: CoreVersionInfo, chatMigrations: [UpMigration], agentMigrations: [UpMigration])
     case cmdOk(user: UserRef?)
@@ -772,6 +774,8 @@ public enum ChatResponse: Decodable, Error {
             case .remoteCtrlSessionCode: return "remoteCtrlSessionCode"
             case .remoteCtrlConnected: return "remoteCtrlConnected"
             case .remoteCtrlStopped: return "remoteCtrlStopped"
+            case .contactPQAllowed: return "contactPQAllowed"
+            case .contactPQEnabled: return "contactPQAllowed"
             case .versionInfo: return "versionInfo"
             case .cmdOk: return "cmdOk"
             case .chatCmdError: return "chatCmdError"
@@ -912,7 +916,7 @@ public enum ChatResponse: Decodable, Error {
             case let .callEnded(u, contact): return withUser(u, "contact: \(contact.id)")
             case let .callInvitations(invs): return String(describing: invs)
             case let .ntfTokenStatus(status): return String(describing: status)
-            case let .ntfToken(token, status, ntfMode): return "token: \(token)\nstatus: \(status.rawValue)\nntfMode: \(ntfMode.rawValue)"
+            case let .ntfToken(token, status, ntfMode, ntfServer): return "token: \(token)\nstatus: \(status.rawValue)\nntfMode: \(ntfMode.rawValue)\nntfServer: \(ntfServer)"
             case let .ntfMessages(u, connEntity, msgTs, ntfMessages): return withUser(u, "connEntity: \(String(describing: connEntity))\nmsgTs: \(String(describing: msgTs))\nntfMessages: \(String(describing: ntfMessages))")
             case let .ntfMessage(u, connEntity, ntfMessage): return withUser(u, "connEntity: \(String(describing: connEntity))\nntfMessage: \(String(describing: ntfMessage))")
             case let .contactConnectionDeleted(u, connection): return withUser(u, String(describing: connection))
@@ -922,6 +926,8 @@ public enum ChatResponse: Decodable, Error {
             case let .remoteCtrlSessionCode(remoteCtrl_, sessionCode): return "remoteCtrl_:\n\(String(describing: remoteCtrl_))\nsessionCode: \(sessionCode)"
             case let .remoteCtrlConnected(remoteCtrl): return String(describing: remoteCtrl)
             case .remoteCtrlStopped: return noDetails
+            case let .contactPQAllowed(u, contact): return withUser(u, "contact: \(String(describing: contact))")
+            case let .contactPQEnabled(u, contact, pqEnabled): return withUser(u, "contact: \(String(describing: contact))\npqEnabled: \(pqEnabled)")
             case let .versionInfo(versionInfo, chatMigrations, agentMigrations): return "\(String(describing: versionInfo))\n\nchat migrations: \(chatMigrations.map(\.upName))\n\nagent migrations: \(agentMigrations.map(\.upName))"
             case .cmdOk: return noDetails
             case let .chatCmdError(u, chatError): return withUser(u, String(describing: chatError))
@@ -1005,10 +1011,6 @@ struct ComposedMessage: Encodable {
     var msgContent: MsgContent
 }
 
-public struct XFTPFileConfig: Encodable {
-    var minFileSize: Int64
-}
-
 public struct ArchiveConfig: Encodable {
     var archivePath: String
     var disableCompression: Bool?

apps/ios/SimpleXChat/AppGroup.swift

@@ -39,6 +39,7 @@ let GROUP_DEFAULT_STORE_DB_PASSPHRASE = "storeDBPassphrase"
 let GROUP_DEFAULT_INITIAL_RANDOM_DB_PASSPHRASE = "initialRandomDBPassphrase"
 public let GROUP_DEFAULT_CONFIRM_DB_UPGRADES = "confirmDBUpgrades"
 public let GROUP_DEFAULT_CALL_KIT_ENABLED = "callKitEnabled"
+public let GROUP_DEFAULT_PQ_EXPERIMENTAL_ENABLED = "pqExperimentalEnabled"
 
 public let APP_GROUP_NAME = "group.chat.simplex.app"
 
@@ -67,6 +68,7 @@ public func registerGroupDefaults() {
         GROUP_DEFAULT_PRIVACY_ENCRYPT_LOCAL_FILES: true,
         GROUP_DEFAULT_CONFIRM_DB_UPGRADES: false,
         GROUP_DEFAULT_CALL_KIT_ENABLED: true,
+        GROUP_DEFAULT_PQ_EXPERIMENTAL_ENABLED: false,
     ])
 }
 
@@ -193,6 +195,8 @@ public let confirmDBUpgradesGroupDefault = BoolDefault(defaults: groupDefaults,
 
 public let callKitEnabledGroupDefault = BoolDefault(defaults: groupDefaults, forKey: GROUP_DEFAULT_CALL_KIT_ENABLED)
 
+public let pqExperimentalEnabledDefault = BoolDefault(defaults: groupDefaults, forKey: GROUP_DEFAULT_PRIVACY_ENCRYPT_LOCAL_FILES)
+
 public class DateDefault {
     var defaults: UserDefaults
     var key: String
@@ -265,10 +269,6 @@ public class Default<T> {
     }
 }
 
-public func getXFTPCfg() -> XFTPFileConfig {
-    return XFTPFileConfig(minFileSize: 0)
-}
-
 public func getNetCfg() -> NetCfg {
     let onionHosts = networkUseOnionHostsGroupDefault.get()
     let (hostMode, requiredHostMode) = onionHosts.hostMode

apps/ios/SimpleXChat/ChatTypes.swift

@@ -1367,6 +1367,17 @@ public enum ChatInfo: Identifiable, Decodable, NamedChat {
         }
     }
 
+    public var chatTs: Date {
+        switch self {
+        case let .direct(contact): return contact.chatTs ?? contact.updatedAt
+        case let .group(groupInfo): return groupInfo.chatTs ?? groupInfo.updatedAt
+        case let .local(noteFolder): return noteFolder.chatTs
+        case let .contactRequest(contactRequest): return contactRequest.updatedAt
+        case let .contactConnection(contactConnection): return contactConnection.updatedAt
+        case .invalidJSON: return .now
+        }
+    }
+
     public struct SampleData {
         public var direct: ChatInfo
         public var group: ChatInfo
@@ -1425,6 +1436,7 @@ public struct Contact: Identifiable, Decodable, NamedChat {
     public var mergedPreferences: ContactUserPreferences
     var createdAt: Date
     var updatedAt: Date
+    var chatTs: Date?
     var contactGroupMemberId: Int64?
     var contactGrpInvSent: Bool
 
@@ -1520,22 +1532,30 @@ public struct Connection: Decodable {
     public var viaGroupLink: Bool
     public var customUserProfileId: Int64?
     public var connectionCode: SecurityCode?
+    public var enablePQ: Bool
+    public var pqSndEnabled: Bool?
+    public var pqRcvEnabled: Bool?
 
     public var connectionStats: ConnectionStats? = nil
 
     private enum CodingKeys: String, CodingKey {
-        case connId, agentConnId, peerChatVRange, connStatus, connLevel, viaGroupLink, customUserProfileId, connectionCode
+        case connId, agentConnId, peerChatVRange, connStatus, connLevel, viaGroupLink, customUserProfileId, connectionCode, enablePQ, pqSndEnabled, pqRcvEnabled
     }
 
     public var id: ChatId { get { ":\(connId)" } }
 
+    public var connPQEnabled: Bool {
+        pqSndEnabled == true && pqRcvEnabled == true
+    }
+
     static let sampleData = Connection(
         connId: 1,
         agentConnId: "abc",
         peerChatVRange: VersionRange(minVersion: 1, maxVersion: 1),
         connStatus: .ready,
         connLevel: 0,
-        viaGroupLink: false
+        viaGroupLink: false,
+        enablePQ: false
     )
 }
 
@@ -1744,6 +1764,7 @@ public struct GroupInfo: Identifiable, Decodable, NamedChat {
     public var chatSettings: ChatSettings
     var createdAt: Date
     var updatedAt: Date
+    var chatTs: Date?
 
     public var id: ChatId { get { "#\(groupId)" } }
     public var apiId: Int64 { get { groupId } }
@@ -2049,6 +2070,7 @@ public struct NoteFolder: Identifiable, Decodable, NamedChat {
     public var unread: Bool
     var createdAt: Date
     public var updatedAt: Date
+    var chatTs: Date
 
     public var id: ChatId { get { "*\(noteFolderId)" } }
     public var apiId: Int64 { get { noteFolderId } }
@@ -2070,7 +2092,8 @@ public struct NoteFolder: Identifiable, Decodable, NamedChat {
         favorite: false,
         unread: false,
         createdAt: .now,
-        updatedAt: .now
+        updatedAt: .now,
+        chatTs: .now
     )
 }
 
@@ -2253,7 +2276,7 @@ public struct ChatItem: Identifiable, Decodable {
         case .rcvDirectEvent(rcvDirectEvent: let rcvDirectEvent):
             switch rcvDirectEvent {
             case .contactDeleted: return false
-            case .profileUpdated: return true
+            case .profileUpdated: return false
             }
         case .rcvGroupEvent(rcvGroupEvent: let rcvGroupEvent):
             switch rcvGroupEvent {
@@ -2285,6 +2308,10 @@ public struct ChatItem: Identifiable, Decodable {
         case .sndModerated: return false
         case .rcvModerated: return false
         case .rcvBlocked: return false
+        case .sndDirectE2EEInfo: return false
+        case .rcvDirectE2EEInfo: return false
+        case .sndGroupE2EEInfo: return false
+        case .rcvGroupE2EEInfo: return false
         case .invalidJSON: return false
         }
     }
@@ -2720,6 +2747,10 @@ public enum CIContent: Decodable, ItemContent {
     case sndModerated
     case rcvModerated
     case rcvBlocked
+    case sndDirectE2EEInfo(e2eeInfo: E2EEInfo)
+    case rcvDirectE2EEInfo(e2eeInfo: E2EEInfo)
+    case sndGroupE2EEInfo(e2eeInfo: E2EEInfo)
+    case rcvGroupE2EEInfo(e2eeInfo: E2EEInfo)
     case invalidJSON(json: String)
 
     public var text: String {
@@ -2751,11 +2782,25 @@ public enum CIContent: Decodable, ItemContent {
             case .sndModerated: return NSLocalizedString("moderated", comment: "moderated chat item")
             case .rcvModerated: return NSLocalizedString("moderated", comment: "moderated chat item")
             case .rcvBlocked: return NSLocalizedString("blocked by admin", comment: "blocked chat item")
+            case let .sndDirectE2EEInfo(e2eeInfo): return directE2EEInfoToText(e2eeInfo)
+            case let .rcvDirectE2EEInfo(e2eeInfo): return directE2EEInfoToText(e2eeInfo)
+            case .sndGroupE2EEInfo: return e2eeInfoNoPQText
+            case .rcvGroupE2EEInfo: return e2eeInfoNoPQText
             case .invalidJSON: return NSLocalizedString("invalid data", comment: "invalid chat item")
             }
         }
     }
 
+    private func directE2EEInfoToText(_ e2eeInfo: E2EEInfo) -> String {
+        e2eeInfo.pqEnabled
+        ? NSLocalizedString("This conversation is protected by quantum resistant end-to-end encryption. It has perfect forward secrecy, repudiation and quantum resistant break-in recovery.", comment: "E2EE info chat item")
+        : e2eeInfoNoPQText
+    }
+
+    private var e2eeInfoNoPQText: String {
+        NSLocalizedString("This conversation is protected by end-to-end encryption with perfect forward secrecy, repudiation and break-in recovery.", comment: "E2EE info chat item")
+    }
+
     static func featureText(_ feature: Feature, _ enabled: String, _ param: Int?) -> String {
         feature.hasParam
         ? "\(feature.text): \(timeText(param))"
@@ -3442,6 +3487,10 @@ public enum CIGroupInvitationStatus: String, Decodable {
     case expired
 }
 
+public struct E2EEInfo: Decodable {
+    public var pqEnabled: Bool
+}
+
 public enum RcvDirectEvent: Decodable {
     case contactDeleted
     case profileUpdated(fromProfile: Profile, toProfile: Profile)
@@ -3559,7 +3608,8 @@ public enum RcvConnEvent: Decodable {
     case switchQueue(phase: SwitchPhase)
     case ratchetSync(syncStatus: RatchetSyncState)
     case verificationCodeReset
-    
+    case pqEnabled(enabled: Bool)
+
     var text: String {
         switch self {
         case let .switchQueue(phase):
@@ -3571,6 +3621,12 @@ public enum RcvConnEvent: Decodable {
             return ratchetSyncStatusToText(syncStatus)
         case .verificationCodeReset:
             return NSLocalizedString("security code changed", comment: "chat item text")
+        case let .pqEnabled(enabled):
+            if enabled {
+                return NSLocalizedString("enabled post-quantum encryption", comment: "chat item text")
+            } else {
+                return NSLocalizedString("disabled post-quantum encryption", comment: "chat item text")
+            }
         }
     }
 }
@@ -3588,6 +3644,7 @@ func ratchetSyncStatusToText(_ ratchetSyncStatus: RatchetSyncState) -> String {
 public enum SndConnEvent: Decodable {
     case switchQueue(phase: SwitchPhase, member: GroupMemberRef?)
     case ratchetSync(syncStatus: RatchetSyncState, member: GroupMemberRef?)
+    case pqEnabled(enabled: Bool)
 
     var text: String {
         switch self {
@@ -3611,6 +3668,12 @@ public enum SndConnEvent: Decodable {
                 }
             }
             return ratchetSyncStatusToText(syncStatus)
+        case let .pqEnabled(enabled):
+            if enabled {
+                return NSLocalizedString("enabled post-quantum encryption", comment: "chat item text")
+            } else {
+                return NSLocalizedString("disabled post-quantum encryption", comment: "chat item text")
+            }
         }
     }
 }

apps/ios/SimpleXChat/SimpleX.h

@@ -25,6 +25,7 @@ extern char *chat_parse_markdown(char *str);
 extern char *chat_parse_server(char *str);
 extern char *chat_password_hash(char *pwd, char *salt);
 extern char *chat_valid_name(char *name);
+extern int chat_json_length(char *str);
 extern char *chat_encrypt_media(chat_ctrl ctl, char *key, char *frame, int len);
 extern char *chat_decrypt_media(char *key, char *frame, int len);
 

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

@@ -103,11 +103,14 @@
       </intent-filter>
     </activity-alias>
 
-
-    <activity android:name=".views.call.IncomingCallActivity"
+    <activity android:name=".views.call.CallActivity"
         android:showOnLockScreen="true"
         android:exported="false"
-        android:launchMode="singleTask"/>
+        android:launchMode="singleInstance"
+        android:supportsPictureInPicture="true"
+        android:autoRemoveFromRecents="true"
+        android:screenOrientation="portrait"
+        android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation"/>
 
     <provider
         android:name="androidx.core.content.FileProvider"
@@ -133,6 +136,18 @@
         android:stopWithTask="false"></service>
 
     <!-- SimplexService restart on reboot -->
+
+    <service
+        android:name=".CallService"
+        android:enabled="true"
+        android:exported="false"
+        android:stopWithTask="false"/>
+
+    <receiver
+        android:name=".CallService$CallActionReceiver"
+        android:enabled="true"
+        android:exported="false" />
+
     <receiver
         android:name=".SimplexService$StartReceiver"
         android:enabled="true"

apps/multiplatform/android/src/main/java/chat/simplex/app/CallService.kt

@@ -0,0 +1,176 @@
+package chat.simplex.app
+
+import android.app.*
+import android.content.*
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.os.*
+import androidx.compose.ui.graphics.asAndroidBitmap
+import androidx.core.app.NotificationCompat
+import androidx.core.content.ContextCompat
+import chat.simplex.app.model.NtfManager.EndCallAction
+import chat.simplex.app.views.call.CallActivity
+import chat.simplex.common.model.NotificationPreviewMode
+import chat.simplex.common.platform.*
+import chat.simplex.common.views.call.CallState
+import chat.simplex.common.views.helpers.*
+import chat.simplex.res.MR
+import kotlinx.datetime.Instant
+
+class CallService: Service() {
+  private var wakeLock: PowerManager.WakeLock? = null
+  private var notificationManager: NotificationManager? = null
+  private var serviceNotification: Notification? = null
+
+  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()
+        else -> Log.e(TAG, "No action in the intent")
+      }
+    } else {
+      Log.d(TAG, "null intent. Probably restarted by the system.")
+    }
+    startForeground(CALL_SERVICE_ID, serviceNotification)
+    return START_STICKY
+  }
+
+  override fun onCreate() {
+    super.onCreate()
+    Log.d(TAG, "Call service created")
+    notificationManager = createNotificationChannel()
+    updateNotification()
+    startForeground(CALL_SERVICE_ID, serviceNotification)
+  }
+
+  override fun onDestroy() {
+    Log.d(TAG, "Call service destroyed")
+    try {
+      wakeLock?.let {
+        while (it.isHeld) it.release() // release all, in case acquired more than once
+      }
+      wakeLock = null
+    } catch (e: Exception) {
+      Log.d(TAG, "Exception while releasing wakelock: ${e.message}")
+    }
+    super.onDestroy()
+  }
+
+  private fun startService() {
+    Log.d(TAG, "CallService startService")
+    if (wakeLock != null) return
+    wakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager).run {
+      newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, WAKE_LOCK_TAG).apply {
+        acquire()
+      }
+    }
+  }
+
+  fun updateNotification() {
+    val call = chatModel.activeCall.value
+    val previewMode = appPreferences.notificationPreviewMode.get()
+    val title = if (previewMode == NotificationPreviewMode.HIDDEN.name)
+      generalGetString(MR.strings.notification_preview_somebody)
+    else
+      call?.contact?.profile?.displayName ?: ""
+    val text = generalGetString(if (call?.supportsVideo() == true) MR.strings.call_service_notification_video_call else MR.strings.call_service_notification_audio_call)
+    val image = call?.contact?.image
+    val largeIcon = if (image == null || previewMode == NotificationPreviewMode.HIDDEN.name)
+      BitmapFactory.decodeResource(resources, R.drawable.icon)
+    else
+      base64ToBitmap(image).asAndroidBitmap()
+
+    serviceNotification = createNotification(title, text, largeIcon, call?.connectedAt)
+    startForeground(CALL_SERVICE_ID, serviceNotification)
+  }
+
+  private fun createNotificationChannel(): NotificationManager? {
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+      val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+      val channel = NotificationChannel(CALL_NOTIFICATION_CHANNEL_ID, CALL_NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_DEFAULT)
+      notificationManager.createNotificationChannel(channel)
+      return notificationManager
+    }
+    return null
+  }
+
+  private fun createNotification(title: String, text: String, icon: Bitmap, connectedAt: Instant? = null): Notification {
+    val pendingIntent: PendingIntent = Intent(this, CallActivity::class.java).let { notificationIntent ->
+      PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_IMMUTABLE)
+    }
+
+    val endCallPendingIntent: PendingIntent = Intent(this, CallActionReceiver::class.java).let { notificationIntent ->
+      notificationIntent.setAction(EndCallAction)
+      PendingIntent.getBroadcast(this, 1, notificationIntent, PendingIntent.FLAG_CANCEL_CURRENT or PendingIntent.FLAG_IMMUTABLE)
+    }
+
+    val builder =  NotificationCompat.Builder(this, CALL_NOTIFICATION_CHANNEL_ID)
+      .setSmallIcon(R.drawable.ntf_icon)
+      .setLargeIcon(icon.clipToCircle())
+      .setColor(0x88FFFF)
+      .setContentTitle(title)
+      .setContentText(text)
+      .setContentIntent(pendingIntent)
+      .setSilent(true)
+      .addAction(R.drawable.ntf_icon, generalGetString(MR.strings.call_service_notification_end_call), endCallPendingIntent)
+    if (connectedAt != null) {
+      builder.setUsesChronometer(true)
+      builder.setWhen(connectedAt.epochSeconds * 1000)
+    }
+
+    return builder.build()
+  }
+
+  override fun onBind(intent: Intent): IBinder {
+    return CallServiceBinder()
+  }
+
+  inner class CallServiceBinder : Binder() {
+    fun getService() = this@CallService
+  }
+
+  enum class Action {
+    START,
+  }
+
+  class CallActionReceiver: BroadcastReceiver() {
+    override fun onReceive(context: Context?, intent: Intent?) {
+      when (intent?.action) {
+        EndCallAction -> {
+          val call = chatModel.activeCall.value
+          if (call != null) {
+            withBGApi {
+              chatModel.callManager.endCall(call)
+            }
+          }
+        }
+        else -> {
+          Log.e(TAG, "Unknown action. Make sure you provided an action")
+        }
+      }
+    }
+  }
+
+companion object {
+    const val TAG = "CALL_SERVICE"
+    const val CALL_NOTIFICATION_CHANNEL_ID = "chat.simplex.app.CALL_SERVICE_NOTIFICATION"
+    const val CALL_NOTIFICATION_CHANNEL_NAME = "SimpleX Chat call service"
+    const val CALL_SERVICE_ID = 6788
+    const val WAKE_LOCK_TAG = "CallService::lock"
+
+    fun startService(): Intent {
+      Log.d(TAG, "CallService start")
+      return Intent(androidAppContext, CallService::class.java).also {
+        it.action = Action.START.name
+        ContextCompat.startForegroundService(androidAppContext, it)
+      }
+    }
+
+    fun stopService() {
+      androidAppContext.stopService(Intent(androidAppContext, CallService::class.java))
+    }
+  }
+}

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

@@ -1,11 +1,12 @@
 package chat.simplex.app
 
+import android.content.Context
 import android.content.Intent
 import android.net.Uri
 import android.os.*
 import android.view.WindowManager
 import androidx.activity.compose.setContent
-import androidx.appcompat.app.AppCompatDelegate
+import androidx.compose.ui.platform.ClipboardManager
 import androidx.fragment.app.FragmentActivity
 import chat.simplex.app.model.NtfManager
 import chat.simplex.app.model.NtfManager.getUserIdFromIntent
@@ -58,6 +59,17 @@ class MainActivity: FragmentActivity() {
   override fun onResume() {
     super.onResume()
     AppLock.recheckAuthState()
+    withApi {
+      delay(1000)
+      if (!isAppOnForeground) return@withApi
+      /**
+       * When the app calls [ClipboardManager.shareText] and a user copies text in clipboard, Android denies
+       * access to clipboard because the app considered in background.
+       * This will ensure that the app will get the event on resume
+       * */
+      val service = getSystemService(Context.CLIPBOARD_SERVICE) as android.content.ClipboardManager
+      chatModel.clipboardHasText.value = service.hasPrimaryClip()
+    }
   }
 
   override fun onPause() {

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

@@ -1,14 +1,15 @@
 package chat.simplex.app
 
-import android.app.Application
+import android.app.*
 import android.content.Context
-import androidx.compose.ui.platform.ClipboardManager
 import chat.simplex.common.platform.Log
-import android.app.UiModeManager
+import android.content.Intent
 import android.os.*
 import androidx.lifecycle.*
 import androidx.work.*
 import chat.simplex.app.model.NtfManager
+import chat.simplex.app.model.NtfManager.AcceptCallAction
+import chat.simplex.app.views.call.CallActivity
 import chat.simplex.common.helpers.APPLICATION_ID
 import chat.simplex.common.helpers.requiresIgnoringBattery
 import chat.simplex.common.model.*
@@ -18,6 +19,7 @@ import chat.simplex.common.platform.*
 import chat.simplex.common.ui.theme.CurrentColors
 import chat.simplex.common.ui.theme.DefaultTheme
 import chat.simplex.common.views.call.RcvCallInvitation
+import chat.simplex.common.views.call.activeCallDestroyWebView
 import chat.simplex.common.views.helpers.*
 import chat.simplex.common.views.onboarding.OnboardingStage
 import com.jakewharton.processphoenix.ProcessPhoenix
@@ -71,7 +73,7 @@ class SimplexApp: Application(), LifecycleEventObserver {
 
   override fun onStateChanged(source: LifecycleOwner, event: Lifecycle.Event) {
     Log.d(TAG, "onStateChanged: $event")
-    withBGApi {
+    withLongRunningApi {
       when (event) {
         Lifecycle.Event.ON_START -> {
           isAppOnForeground = true
@@ -97,13 +99,6 @@ class SimplexApp: Application(), LifecycleEventObserver {
         }
         Lifecycle.Event.ON_RESUME -> {
           isAppOnForeground = true
-          /**
-           * When the app calls [ClipboardManager.shareText] and a user copies text in clipboard, Android denies
-           * access to clipboard because the app considered in background.
-           * This will ensure that the app will get the event on resume
-           * */
-          val service = androidAppContext.getSystemService(Context.CLIPBOARD_SERVICE) as android.content.ClipboardManager
-          chatModel.clipboardHasText.value = service.hasPrimaryClip()
           if (chatModel.controller.appPrefs.onboardingStage.get() == OnboardingStage.OnboardingComplete && chatModel.currentUser.value != null) {
             SimplexService.showBackgroundServiceNoticeIfNeeded()
           }
@@ -191,16 +186,28 @@ class SimplexApp: Application(), LifecycleEventObserver {
         SimplexService.safeStopService()
       }
 
+      override fun androidCallServiceSafeStop() {
+        CallService.stopService()
+      }
+
       override fun androidNotificationsModeChanged(mode: NotificationsMode) {
         if (mode.requiresIgnoringBattery && !SimplexService.isBackgroundAllowed()) {
           appPrefs.backgroundServiceNoticeShown.set(false)
         }
         SimplexService.StartReceiver.toggleReceiver(mode == NotificationsMode.SERVICE)
         CoroutineScope(Dispatchers.Default).launch {
-          if (mode == NotificationsMode.SERVICE)
+          if (mode == NotificationsMode.SERVICE) {
             SimplexService.start()
-          else
+            // Sometimes, when we change modes fast from one to another, system destroys the service after start.
+            // We can wait a little and restart the service, and it will work in 100% of cases
+            delay(2000)
+            if (!SimplexService.isServiceStarted && appPrefs.notificationsMode.get() == NotificationsMode.SERVICE) {
+              Log.i(TAG, "Service tried to start but destroyed by system, repeating once more")
+              SimplexService.start()
+            }
+          } else {
             SimplexService.safeStopService()
+          }
         }
 
         if (mode != NotificationsMode.PERIODIC) {
@@ -253,6 +260,28 @@ class SimplexApp: Application(), LifecycleEventObserver {
         uiModeManager.setApplicationNightMode(mode)
       }
 
+      override fun androidStartCallActivity(acceptCall: Boolean, remoteHostId: Long?, chatId: ChatId?) {
+        val context = mainActivity.get() ?: return
+        val intent = Intent(context, CallActivity::class.java)
+          .addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION)
+        if (acceptCall) {
+          intent.setAction(AcceptCallAction)
+            .putExtra("remoteHostId", remoteHostId)
+            .putExtra("chatId", chatId)
+        }
+        intent.flags += Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT
+        context.startActivity(intent)
+      }
+
+      override fun androidPictureInPictureAllowed(): Boolean {
+        val appOps = androidAppContext.getSystemService(Context.APP_OPS_SERVICE) as AppOpsManager
+        return appOps.checkOpNoThrow(AppOpsManager.OPSTR_PICTURE_IN_PICTURE, Process.myUid(), packageName) == AppOpsManager.MODE_ALLOWED
+      }
+
+      override fun androidCallEnded() {
+        activeCallDestroyWebView()
+      }
+
       override suspend fun androidAskToAllowBackgroundCalls(): Boolean {
         if (SimplexService.isBackgroundRestricted()) {
           val userChoice: CompletableDeferred<Boolean> = CompletableDeferred()

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

@@ -34,12 +34,13 @@ import kotlin.system.exitProcess
 
 class SimplexService: Service() {
   private var wakeLock: PowerManager.WakeLock? = null
-  private var isStartingService = false
+  private var isCheckingNewMessages = false
   private var notificationManager: NotificationManager? = null
   private var serviceNotification: Notification? = null
 
   override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
     Log.d(TAG, "onStartCommand startId: $startId")
+    isServiceStarting = false
     if (intent != null) {
       val action = intent.action
       Log.d(TAG, "intent action $action")
@@ -71,6 +72,7 @@ class SimplexService: Service() {
       stopForeground(true)
       stopSelf()
     } else {
+      isServiceStarting = false
       isServiceStarted = true
       // In case of self-destruct is enabled the initialization process will not start in SimplexApp, Let's start it here
       if (DatabaseUtils.ksSelfDestructPassword.get() != null && chatModel.chatDbStatus.value == null) {
@@ -89,6 +91,7 @@ class SimplexService: Service() {
     } catch (e: Exception) {
       Log.d(TAG, "Exception while releasing wakelock: ${e.message}")
     }
+    isServiceStarting = false
     isServiceStarted = false
     stopAfterStart = false
     saveServiceState(this, ServiceState.STOPPED)
@@ -101,10 +104,10 @@ class SimplexService: Service() {
 
   private fun startService() {
     Log.d(TAG, "SimplexService startService")
-    if (wakeLock != null || isStartingService) return
+    if (wakeLock != null || isCheckingNewMessages) return
     val self = this
-    isStartingService = true
-    withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+    isCheckingNewMessages = true
+    withLongRunningApi {
       val chatController = ChatController
       waitDbMigrationEnds(chatController)
       try {
@@ -123,7 +126,7 @@ class SimplexService: Service() {
           }
         }
       } finally {
-        isStartingService = false
+        isCheckingNewMessages = false
       }
     }
   }
@@ -262,7 +265,8 @@ class SimplexService: Service() {
     private const val SHARED_PREFS_SERVICE_STATE = "SIMPLEX_SERVICE_STATE"
     private const val WORK_NAME_ONCE = "ServiceStartWorkerOnce"
 
-    private var isServiceStarted = false
+    var isServiceStarting = false
+    var isServiceStarted = false
     private var stopAfterStart = false
 
     fun scheduleStart(context: Context) {
@@ -281,7 +285,7 @@ class SimplexService: Service() {
     fun safeStopService() {
       if (isServiceStarted) {
         androidAppContext.stopService(Intent(androidAppContext, SimplexService::class.java))
-      } else {
+      } else if (isServiceStarting) {
         stopAfterStart = true
       }
     }
@@ -291,6 +295,7 @@ class SimplexService: Service() {
       withContext(Dispatchers.IO) {
         Intent(androidAppContext, SimplexService::class.java).also {
           it.action = action.name
+          isServiceStarting = true
           ContextCompat.startForegroundService(androidAppContext, it)
         }
       }

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

@@ -13,7 +13,7 @@ import androidx.compose.ui.graphics.asAndroidBitmap
 import androidx.core.app.*
 import chat.simplex.app.*
 import chat.simplex.app.TAG
-import chat.simplex.app.views.call.IncomingCallActivity
+import chat.simplex.app.views.call.CallActivity
 import chat.simplex.app.views.call.getKeyguardManager
 import chat.simplex.common.views.helpers.*
 import chat.simplex.common.model.*
@@ -33,6 +33,7 @@ object NtfManager {
   const val CallChannel: String = "chat.simplex.app.CALL_NOTIFICATION_2"
   const val AcceptCallAction: String = "chat.simplex.app.ACCEPT_CALL"
   const val RejectCallAction: String = "chat.simplex.app.REJECT_CALL"
+  const val EndCallAction: String = "chat.simplex.app.END_CALL"
   const val CallNotificationId: Int = -1
   private const val UserIdKey: String = "userId"
   private const val ChatIdKey: String = "chatId"
@@ -157,7 +158,7 @@ object NtfManager {
     val screenOff = displayManager.displays.all { it.state != Display.STATE_ON }
     var ntfBuilder =
       if ((keyguardManager.isKeyguardLocked || screenOff) && appPreferences.callOnLockScreen.get() != CallOnLockScreen.DISABLE) {
-        val fullScreenIntent = Intent(context, IncomingCallActivity::class.java)
+        val fullScreenIntent = Intent(context, CallActivity::class.java)
         val fullScreenPendingIntent = PendingIntent.getActivity(context, 0, fullScreenIntent, PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE)
         NotificationCompat.Builder(context, CallChannel)
           .setFullScreenIntent(fullScreenPendingIntent, true)

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

@@ -1,17 +1,18 @@
 package chat.simplex.app.views.call
 
-import android.app.Activity
-import android.app.KeyguardManager
-import android.content.Context
-import android.content.Intent
-import android.os.Build
-import android.os.Bundle
-import chat.simplex.common.platform.Log
-import android.view.WindowManager
+import android.app.*
+import android.content.*
+import android.content.res.Configuration
+import android.graphics.Rect
+import android.os.*
+import android.util.Rational
+import android.view.*
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
+import androidx.activity.trackPipAnimationHintView
 import androidx.compose.desktop.ui.tooling.preview.Preview
 import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.*
@@ -22,33 +23,115 @@ import androidx.compose.ui.draw.scale
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.painter.Painter
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalView
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import androidx.lifecycle.Lifecycle
 import chat.simplex.app.*
 import chat.simplex.app.R
+import chat.simplex.app.TAG
+import chat.simplex.app.model.NtfManager
+import chat.simplex.app.model.NtfManager.AcceptCallAction
 import chat.simplex.common.model.*
-import chat.simplex.app.model.NtfManager.OpenChatAction
-import chat.simplex.common.platform.ntfManager
+import chat.simplex.common.platform.*
 import chat.simplex.common.ui.theme.*
 import chat.simplex.common.views.call.*
 import chat.simplex.common.views.helpers.*
 import chat.simplex.res.MR
 import dev.icerock.moko.resources.compose.stringResource
+import kotlinx.coroutines.launch
 import kotlinx.datetime.Clock
+import java.lang.ref.WeakReference
+import chat.simplex.common.platform.chatModel as m
 
-class IncomingCallActivity: ComponentActivity() {
+class CallActivity: ComponentActivity(), ServiceConnection {
+
+  var boundService: CallService? = null
 
   override fun onCreate(savedInstanceState: Bundle?) {
     super.onCreate(savedInstanceState)
-    setContent { IncomingCallActivityView(ChatModel) }
-    unlockForIncomingCall()
+    callActivity = WeakReference(this)
+    when (intent?.action) {
+      AcceptCallAction -> {
+        val remoteHostId = intent.getLongExtra("remoteHostId", -1).takeIf { it != -1L }
+        val chatId = intent.getStringExtra("chatId")
+        val invitation = (m.callInvitations.values + m.activeCallInvitation.value).lastOrNull {
+          it?.remoteHostId == remoteHostId && it?.contact?.id == chatId
+        }
+        if (invitation != null) {
+          m.callManager.acceptIncomingCall(invitation = invitation)
+        }
+      }
+    }
+
+    setContent { CallActivityView() }
+
+    if (isOnLockScreenNow()) {
+      unlockForIncomingCall()
+    }
   }
 
   override fun onDestroy() {
     super.onDestroy()
-    lockAfterIncomingCall()
+    if (isOnLockScreenNow()) {
+      lockAfterIncomingCall()
+    }
+    try {
+      unbindService(this)
+    } catch (e: Exception) {
+      Log.i(TAG, "Unable to unbind service: " + e.stackTraceToString())
+    }
+  }
+
+  private fun isOnLockScreenNow() = getKeyguardManager(this).isKeyguardLocked
+
+  fun setPipParams(video: Boolean, sourceRectHint: Rect? = null, viewRatio: Rational? = null) {
+    // By manually specifying source rect we exclude empty background while toggling PiP
+    val builder = PictureInPictureParams.Builder()
+        .setAspectRatio(viewRatio)
+        .setSourceRectHint(sourceRectHint)
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+      builder.setAutoEnterEnabled(video)
+    }
+    setPictureInPictureParams(builder.build())
+  }
+
+  override fun onPictureInPictureModeChanged(isInPictureInPictureMode: Boolean, newConfig: Configuration) {
+    super.onPictureInPictureModeChanged(isInPictureInPictureMode, newConfig)
+    m.activeCallViewIsCollapsed.value = isInPictureInPictureMode
+    val layoutType = if (!isInPictureInPictureMode) {
+      LayoutType.Default
+    } else {
+      LayoutType.RemoteVideo
+    }
+    m.callCommand.add(WCallCommand.Layout(layoutType))
+  }
+
+  override fun onBackPressed() {
+    if (isOnLockScreenNow()) {
+      super.onBackPressed()
+    } else {
+      m.activeCallViewIsCollapsed.value = true
+    }
+  }
+
+  override fun onPictureInPictureRequested(): Boolean {
+    Log.d(TAG, "Requested picture-in-picture from the system")
+    return super.onPictureInPictureRequested()
+  }
+
+  override fun onUserLeaveHint() {
+    // On Android 12+ PiP is enabled automatically when a user hides the app
+    if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R && callSupportsVideo() && platform.androidPictureInPictureAllowed()) {
+      enterPictureInPictureMode()
+    }
+  }
+
+  override fun onResume() {
+    super.onResume()
+    m.activeCallViewIsCollapsed.value = false
   }
 
   private fun unlockForIncomingCall() {
@@ -72,6 +155,23 @@ class IncomingCallActivity: ComponentActivity() {
     }
   }
 
+  fun startServiceAndBind() {
+    /**
+     * On Android 12 there is a bug that prevents starting activity after pressing back button
+     * (the error says that it denies to start activity in background).
+     * Workaround is to bind to a service
+     * */
+    bindService(CallService.startService(), this, 0)
+  }
+
+  override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
+    boundService = (service as CallService.CallServiceBinder).getService()
+  }
+
+  override fun onServiceDisconnected(name: ComponentName?) {
+    boundService = null
+  }
+
   companion object {
     const val activityFlags = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON or WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
   }
@@ -80,38 +180,96 @@ class IncomingCallActivity: ComponentActivity() {
 fun getKeyguardManager(context: Context): KeyguardManager =
   context.getSystemService(Context.KEYGUARD_SERVICE) as KeyguardManager
 
+private fun callSupportsVideo() = m.activeCall.value?.supportsVideo() == true || m.activeCallInvitation.value?.callType?.media == CallMediaType.Video
+
 @Composable
-fun IncomingCallActivityView(m: ChatModel) {
+fun CallActivityView() {
   val switchingCall = m.switchingCall.value
   val invitation = m.activeCallInvitation.value
-  val call = m.activeCall.value
+  val call = remember { m.activeCall }.value
   val showCallView = m.showCallView.value
-  val activity = LocalContext.current as Activity
-  LaunchedEffect(invitation, call, switchingCall, showCallView) {
-    if (!switchingCall && invitation == null && (!showCallView || call == null)) {
-      Log.d(TAG, "IncomingCallActivityView: finishing activity")
-      activity.finish()
-    }
+  val activity = LocalContext.current as CallActivity
+  LaunchedEffect(Unit) {
+    snapshotFlow { m.activeCallViewIsCollapsed.value }
+      .collect { collapsed ->
+        when {
+          collapsed -> {
+            if (!platform.androidPictureInPictureAllowed() || !callSupportsVideo()) {
+              activity.moveTaskToBack(true)
+              activity.startActivity(Intent(activity, MainActivity::class.java))
+            } else if (!activity.isInPictureInPictureMode && activity.lifecycle.currentState == Lifecycle.State.RESUMED) {
+              // User pressed back button, show MainActivity
+              activity.startActivity(Intent(activity, MainActivity::class.java))
+              activity.enterPictureInPictureMode()
+            }
+          }
+          callSupportsVideo() && !platform.androidPictureInPictureAllowed() -> {
+            // PiP disabled by user
+            platform.androidStartCallActivity(false)
+          }
+          activity.isInPictureInPictureMode -> {
+            platform.androidStartCallActivity(false)
+          }
+        }
+      }
   }
   SimpleXTheme {
-    Surface(
-      Modifier
-        .fillMaxSize(),
-      color = MaterialTheme.colors.background,
-      contentColor = LocalContentColor.current
-    ) {
-      if (showCallView) {
-        Box {
-          ActiveCallView()
-          if (invitation != null) IncomingCallAlertView(invitation, m)
+    var prevCall by remember { mutableStateOf(call) }
+    KeyChangeEffect(m.activeCall.value) {
+      if (m.activeCall.value != null) {
+        prevCall = m.activeCall.value
+        activity.boundService?.updateNotification()
+      }
+    }
+    Box(Modifier.background(Color.Black)) {
+      if (call != null) {
+        val view = LocalView.current
+        ActiveCallView()
+        if (callSupportsVideo()) {
+          val scope = rememberCoroutineScope()
+          LaunchedEffect(Unit) {
+            scope.launch {
+              activity.setPipParams(callSupportsVideo(), viewRatio = Rational(view.width, view.height))
+              activity.trackPipAnimationHintView(view)
+            }
+          }
+        }
+      } else if (prevCall != null) {
+        prevCall?.let { ActiveCallOverlayDisabled(it) }
+      }
+      if (invitation != null) {
+        if (call == null) {
+          Surface(
+            Modifier
+              .fillMaxSize(),
+            color = MaterialTheme.colors.background,
+            contentColor = LocalContentColor.current
+          ) {
+            IncomingCallLockScreenAlert(invitation, m)
+          }
+        } else {
+          IncomingCallAlertView(invitation, m)
         }
-      } else if (invitation != null) {
-        IncomingCallLockScreenAlert(invitation, m)
       }
     }
   }
+  LaunchedEffect(call == null) {
+    if (call != null) {
+      activity.startServiceAndBind()
+    }
+  }
+  LaunchedEffect(invitation, call, switchingCall, showCallView) {
+    if (!switchingCall && invitation == null && (!showCallView || call == null)) {
+      Log.d(TAG, "CallActivityView: finishing activity")
+      activity.finish()
+    }
+  }
 }
 
+/**
+* Related to lockscreen
+* */
+
 @Composable
 fun IncomingCallLockScreenAlert(invitation: RcvCallInvitation, chatModel: ChatModel) {
   val cm = chatModel.callManager
@@ -135,7 +293,7 @@ fun IncomingCallLockScreenAlert(invitation: RcvCallInvitation, chatModel: ChatMo
     acceptCall = { cm.acceptIncomingCall(invitation = invitation) },
     openApp = {
       val intent = Intent(context, MainActivity::class.java)
-        .setAction(OpenChatAction)
+        .setAction(NtfManager.OpenChatAction)
         .putExtra("userId", invitation.user.userId)
         .putExtra("chatId", invitation.contact.id)
       context.startActivity(intent)

apps/multiplatform/common/src/androidMain/kotlin/chat/simplex/common/platform/AppCommon.android.kt

@@ -4,6 +4,7 @@ import android.annotation.SuppressLint
 import android.content.Context
 import android.net.LocalServerSocket
 import android.util.Log
+import androidx.activity.ComponentActivity
 import androidx.fragment.app.FragmentActivity
 import chat.simplex.common.*
 import chat.simplex.common.platform.*
@@ -25,7 +26,8 @@ val defaultLocale: Locale = Locale.getDefault()
 
 @SuppressLint("StaticFieldLeak")
 lateinit var androidAppContext: Context
-lateinit var mainActivity: WeakReference<FragmentActivity>
+var mainActivity: WeakReference<FragmentActivity> = WeakReference(null)
+var callActivity: WeakReference<ComponentActivity> = WeakReference(null)
 
 fun initHaskell() {
   val socketName = "chat.simplex.app.local.socket.address.listen.native.cmd2" + Random.nextLong(100000)

apps/multiplatform/common/src/androidMain/kotlin/chat/simplex/common/platform/Images.android.kt

@@ -61,6 +61,16 @@ actual fun cropToSquare(image: ImageBitmap): ImageBitmap {
   return Bitmap.createBitmap(image.asAndroidBitmap(), xOffset, yOffset, side, side).asImageBitmap()
 }
 
+fun Bitmap.clipToCircle(): Bitmap {
+  val circle = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888)
+  val path = android.graphics.Path()
+  path.addCircle(width / 2f, height / 2f, min(width, height) / 2f, android.graphics.Path.Direction.CCW)
+  val canvas = android.graphics.Canvas(circle)
+  canvas.clipPath(path)
+  canvas.drawBitmap(this, 0f, 0f, null)
+  return circle
+}
+
 actual fun compressImageStr(bitmap: ImageBitmap): String {
   val usePng = bitmap.hasAlpha()
   val ext = if (usePng) "png" else "jpg"

apps/multiplatform/common/src/androidMain/kotlin/chat/simplex/common/platform/Share.android.kt

@@ -14,17 +14,27 @@ import chat.simplex.common.views.helpers.*
 import java.io.BufferedOutputStream
 import java.io.File
 import chat.simplex.res.MR
+import kotlin.math.min
 
 actual fun ClipboardManager.shareText(text: String) {
-  val sendIntent: Intent = Intent().apply {
-    action = Intent.ACTION_SEND
-    putExtra(Intent.EXTRA_TEXT, text)
-    type = "text/plain"
-    flags = FLAG_ACTIVITY_NEW_TASK
+  var text = text
+  for (i in 10 downTo 1) {
+    try {
+      val sendIntent: Intent = Intent().apply {
+        action = Intent.ACTION_SEND
+        putExtra(Intent.EXTRA_TEXT, text)
+        type = "text/plain"
+        flags = FLAG_ACTIVITY_NEW_TASK
+      }
+      val shareIntent = Intent.createChooser(sendIntent, null)
+      shareIntent.addFlags(FLAG_ACTIVITY_NEW_TASK)
+      androidAppContext.startActivity(shareIntent)
+      break
+    } catch (e: Exception) {
+      Log.e(TAG, "Failed to share text: ${e.stackTraceToString()}")
+      text = text.substring(0, min(i * 1000, text.length))
+    }
   }
-  val shareIntent = Intent.createChooser(sendIntent, null)
-  shareIntent.addFlags(FLAG_ACTIVITY_NEW_TASK)
-  androidAppContext.startActivity(shareIntent)
 }
 
 actual fun shareFile(text: String, fileSource: CryptoFile) {

apps/multiplatform/common/src/androidMain/kotlin/chat/simplex/common/platform/UI.android.kt

@@ -12,6 +12,8 @@ import androidx.activity.compose.setContent
 import androidx.compose.runtime.*
 import androidx.compose.ui.platform.LocalView
 import chat.simplex.common.AppScreen
+import chat.simplex.common.model.clear
+import chat.simplex.common.ui.theme.SimpleXTheme
 import chat.simplex.common.views.helpers.*
 import androidx.compose.ui.platform.LocalContext as LocalContext1
 import chat.simplex.res.MR
@@ -112,7 +114,8 @@ actual class GlobalExceptionsHandler: Thread.UncaughtExceptionHandler {
     Handler(Looper.getMainLooper()).post {
       AlertManager.shared.showAlertMsg(
         title = generalGetString(MR.strings.app_was_crashed),
-        text = e.stackTraceToString()
+        text = e.stackTraceToString(),
+        shareText = true
       )
     }
   }

apps/multiplatform/common/src/androidMain/kotlin/chat/simplex/common/views/call/CallView.android.kt

@@ -28,6 +28,7 @@ import androidx.compose.ui.platform.LocalLifecycleOwner
 import dev.icerock.moko.resources.compose.painterResource
 import dev.icerock.moko.resources.compose.stringResource
 import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.viewinterop.AndroidView
 import androidx.lifecycle.Lifecycle
@@ -50,20 +51,30 @@ import kotlinx.datetime.Clock
 import kotlinx.serialization.decodeFromString
 import kotlinx.serialization.encodeToString
 
+// Should be destroy()'ed and set as null when call is ended. Otherwise, it will be a leak
+@SuppressLint("StaticFieldLeak")
+private var staticWebView: WebView? = null
+
+// WebView methods must be called on Main thread
+fun activeCallDestroyWebView() = withApi {
+  // Stop it when call ended
+  platform.androidCallServiceSafeStop()
+  staticWebView?.destroy()
+  staticWebView = null
+  Log.d(TAG, "CallView: webview was destroyed")
+}
+
 @SuppressLint("SourceLockedOrientationActivity")
 @Composable
 actual fun ActiveCallView() {
-  val chatModel = ChatModel
-  BackHandler(onBack = {
-    val call = chatModel.activeCall.value
-    if (call != null) withBGApi { chatModel.callManager.endCall(call) }
-  })
   val audioViaBluetooth = rememberSaveable { mutableStateOf(false) }
-  val ntfModeService = remember { chatModel.controller.appPrefs.notificationsMode.get() == NotificationsMode.SERVICE }
-  LaunchedEffect(Unit) {
-    // Start service when call happening since it's not already started.
-    // It's needed to prevent Android from shutting down a microphone after a minute or so when screen is off
-    if (!ntfModeService) platform.androidServiceStart()
+  val proximityLock = remember {
+    val pm = (androidAppContext.getSystemService(Context.POWER_SERVICE) as PowerManager)
+    if (pm.isWakeLockLevelSupported(PROXIMITY_SCREEN_OFF_WAKE_LOCK)) {
+      pm.newWakeLock(PROXIMITY_SCREEN_OFF_WAKE_LOCK, androidAppContext.packageName + ":proximityLock")
+    } else {
+      null
+    }
   }
   DisposableEffect(Unit) {
     val am = androidAppContext.getSystemService(Context.AUDIO_SERVICE) as AudioManager
@@ -93,22 +104,24 @@ actual fun ActiveCallView() {
       }
     }
     am.registerAudioDeviceCallback(audioCallback, null)
-    val pm = (androidAppContext.getSystemService(Context.POWER_SERVICE) as PowerManager)
-    val proximityLock = if (pm.isWakeLockLevelSupported(PROXIMITY_SCREEN_OFF_WAKE_LOCK)) {
-      pm.newWakeLock(PROXIMITY_SCREEN_OFF_WAKE_LOCK, androidAppContext.packageName + ":proximityLock")
-    } else {
-      null
-    }
-    proximityLock?.acquire()
     onDispose {
-      // Stop it when call ended
-      if (!ntfModeService) platform.androidServiceSafeStop()
       dropAudioManagerOverrides()
       am.unregisterAudioDeviceCallback(audioCallback)
-      proximityLock?.release()
+      if (proximityLock?.isHeld == true) {
+        proximityLock.release()
+      }
+    }
+  }
+  LaunchedEffect(chatModel.activeCallViewIsCollapsed.value) {
+    if (chatModel.activeCallViewIsCollapsed.value) {
+      if (proximityLock?.isHeld == true) proximityLock.release()
+    } else {
+      delay(1000)
+      if (proximityLock?.isHeld == false) proximityLock.acquire()
     }
   }
   val scope = rememberCoroutineScope()
+  val call = chatModel.activeCall.value
   Box(Modifier.fillMaxSize()) {
     WebRTCView(chatModel.callCommand) { apiMsg ->
       Log.d(TAG, "received from WebRTCView: $apiMsg")
@@ -120,15 +133,15 @@ actual fun ActiveCallView() {
           is WCallResponse.Capabilities -> withBGApi {
             val callType = CallType(call.localMedia, r.capabilities)
             chatModel.controller.apiSendCallInvitation(callRh, call.contact, callType)
-            chatModel.activeCall.value = call.copy(callState = CallState.InvitationSent, localCapabilities = r.capabilities)
+            updateActiveCall(call) { it.copy(callState = CallState.InvitationSent, localCapabilities = r.capabilities) }
           }
           is WCallResponse.Offer -> withBGApi {
             chatModel.controller.apiSendCallOffer(callRh, call.contact, r.offer, r.iceCandidates, call.localMedia, r.capabilities)
-            chatModel.activeCall.value = call.copy(callState = CallState.OfferSent, localCapabilities = r.capabilities)
+            updateActiveCall(call) { it.copy(callState = CallState.OfferSent, localCapabilities = r.capabilities) }
           }
           is WCallResponse.Answer -> withBGApi {
             chatModel.controller.apiSendCallAnswer(callRh, call.contact, r.answer, r.iceCandidates)
-            chatModel.activeCall.value = call.copy(callState = CallState.Negotiated)
+            updateActiveCall(call) { it.copy(callState = CallState.Negotiated) }
           }
           is WCallResponse.Ice -> withBGApi {
             chatModel.controller.apiSendCallExtraInfo(callRh, call.contact, r.iceCandidates)
@@ -137,7 +150,7 @@ actual fun ActiveCallView() {
             try {
               val callStatus = json.decodeFromString<WebRTCCallStatus>("\"${r.state.connectionState}\"")
               if (callStatus == WebRTCCallStatus.Connected) {
-                chatModel.activeCall.value = call.copy(callState = CallState.Connected, connectedAt = Clock.System.now())
+                updateActiveCall(call) { it.copy(callState = CallState.Connected, connectedAt = Clock.System.now()) }
                 setCallSound(call.soundSpeaker, audioViaBluetooth)
               }
               withBGApi { chatModel.controller.apiCallStatus(callRh, call.contact, callStatus) }
@@ -145,7 +158,7 @@ actual fun ActiveCallView() {
               Log.d(TAG,"call status ${r.state.connectionState} not used")
             }
           is WCallResponse.Connected -> {
-            chatModel.activeCall.value = call.copy(callState = CallState.Connected, connectionInfo = r.connectionInfo)
+            updateActiveCall(call) { it.copy(callState = CallState.Connected, connectionInfo = r.connectionInfo) }
             scope.launch {
               setCallSound(call.soundSpeaker, audioViaBluetooth)
             }
@@ -154,27 +167,29 @@ actual fun ActiveCallView() {
             withBGApi { chatModel.callManager.endCall(call) }
           }
           is WCallResponse.Ended -> {
-            chatModel.activeCall.value = call.copy(callState = CallState.Ended)
+            updateActiveCall(call) { it.copy(callState = CallState.Ended) }
             withBGApi { 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)
+              updateActiveCall(call) { it.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)
+              updateActiveCall(call) {
+                when (cmd.media) {
+                  CallMediaType.Video -> it.copy(videoEnabled = cmd.enable)
+                  CallMediaType.Audio -> it.copy(audioEnabled = cmd.enable)
+                }
               }
             }
             is WCallCommand.Camera -> {
-              chatModel.activeCall.value = call.copy(localCamera = cmd.camera)
+              updateActiveCall(call) { it.copy(localCamera = cmd.camera) }
               if (!call.audioEnabled) {
                 chatModel.callCommand.add(WCallCommand.Media(CallMediaType.Audio, enable = false))
               }
             }
-            is WCallCommand.End ->
-              chatModel.showCallView.value = false
+            is WCallCommand.End -> {
+              withBGApi { chatModel.callManager.endCall(call) }
+            }
             else -> {}
           }
           is WCallResponse.Error -> {
@@ -183,8 +198,16 @@ actual fun ActiveCallView() {
         }
       }
     }
-    val call = chatModel.activeCall.value
-    if (call != null)  ActiveCallOverlay(call, chatModel, audioViaBluetooth)
+    val showOverlay = when {
+      call == null -> false
+      !platform.androidPictureInPictureAllowed() -> true
+      !call.supportsVideo() -> true
+      !chatModel.activeCallViewIsCollapsed.value -> true
+      else -> false
+    }
+    if (call != null && showOverlay) {
+      ActiveCallOverlay(call, chatModel, audioViaBluetooth)
+    }
   }
 
   val context = LocalContext.current
@@ -229,6 +252,20 @@ private fun ActiveCallOverlay(call: Call, chatModel: ChatModel, audioViaBluetoot
   )
 }
 
+@Composable
+fun ActiveCallOverlayDisabled(call: Call) {
+  ActiveCallOverlayLayout(
+    call = call,
+    speakerCanBeEnabled = false,
+    enabled = false,
+    dismiss = {},
+    toggleAudio = {},
+    toggleVideo = {},
+    toggleSound = {},
+    flipCamera = {}
+  )
+}
+
 private fun setCallSound(speaker: Boolean, audioViaBluetooth: MutableState<Boolean>) {
   val am = androidAppContext.getSystemService(Context.AUDIO_SERVICE) as AudioManager
   Log.d(TAG, "setCallSound: set audio mode, speaker enabled: $speaker")
@@ -271,59 +308,69 @@ private fun dropAudioManagerOverrides() {
 private fun ActiveCallOverlayLayout(
   call: Call,
   speakerCanBeEnabled: Boolean,
+  enabled: Boolean = true,
   dismiss: () -> Unit,
   toggleAudio: () -> Unit,
   toggleVideo: () -> Unit,
   toggleSound: () -> Unit,
   flipCamera: () -> Unit
 ) {
-  Column(Modifier.padding(DEFAULT_PADDING)) {
-    when (call.peerMedia ?: call.localMedia) {
-      CallMediaType.Video -> {
-        CallInfoView(call, alignment = Alignment.Start)
-        Box(Modifier.fillMaxWidth().fillMaxHeight().weight(1f), contentAlignment = Alignment.BottomCenter) {
-          DisabledBackgroundCallsButton()
-        }
-        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(painterResource(MR.images.ic_call_end_filled), stringResource(MR.strings.icon_descr_hang_up), tint = Color.Red, modifier = Modifier.size(64.dp))
-          }
-          if (call.videoEnabled) {
-            ControlButton(call, painterResource(MR.images.ic_flip_camera_android_filled), MR.strings.icon_descr_flip_camera, flipCamera)
-            ControlButton(call, painterResource(MR.images.ic_videocam_filled), MR.strings.icon_descr_video_off, toggleVideo)
-          } else {
-            Spacer(Modifier.size(48.dp))
-            ControlButton(call, painterResource(MR.images.ic_videocam_off), MR.strings.icon_descr_video_on, toggleVideo)
-          }
-        }
+  Column {
+    val media = call.peerMedia ?: call.localMedia
+    CloseSheetBar({ chatModel.activeCallViewIsCollapsed.value = true }, true, tintColor = Color(0xFFFFFFD8)) {
+      if (media == CallMediaType.Video) {
+        Text(call.contact.chatViewName, Modifier.fillMaxWidth().padding(end = DEFAULT_PADDING), color = Color(0xFFFFFFD8), style = MaterialTheme.typography.h2, overflow = TextOverflow.Ellipsis, maxLines = 1)
       }
-      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)
-        }
-        Box(Modifier.fillMaxWidth().fillMaxHeight().weight(1f), contentAlignment = Alignment.BottomCenter) {
-          DisabledBackgroundCallsButton()
-        }
-        Box(Modifier.fillMaxWidth().padding(bottom = DEFAULT_BOTTOM_PADDING), contentAlignment = Alignment.CenterStart) {
-          Box(Modifier.fillMaxWidth(), contentAlignment = Alignment.Center) {
-            IconButton(onClick = dismiss) {
-              Icon(painterResource(MR.images.ic_call_end_filled), stringResource(MR.strings.icon_descr_hang_up), tint = Color.Red, modifier = Modifier.size(64.dp))
+    }
+    Column(Modifier.padding(horizontal = DEFAULT_PADDING)) {
+      when (media) {
+        CallMediaType.Video -> {
+          VideoCallInfoView(call)
+          Box(Modifier.fillMaxWidth().fillMaxHeight().weight(1f), contentAlignment = Alignment.BottomCenter) {
+            DisabledBackgroundCallsButton()
+          }
+          Row(Modifier.fillMaxWidth().padding(horizontal = 6.dp), horizontalArrangement = Arrangement.SpaceBetween, verticalAlignment = Alignment.CenterVertically) {
+            ToggleAudioButton(call, enabled, toggleAudio)
+            Spacer(Modifier.size(40.dp))
+            IconButton(onClick = dismiss, enabled = enabled) {
+              Icon(painterResource(MR.images.ic_call_end_filled), stringResource(MR.strings.icon_descr_hang_up), tint = if (enabled) Color.Red else MaterialTheme.colors.secondary, modifier = Modifier.size(64.dp))
+            }
+            if (call.videoEnabled) {
+              ControlButton(call, painterResource(MR.images.ic_flip_camera_android_filled), MR.strings.icon_descr_flip_camera, enabled, flipCamera)
+              ControlButton(call, painterResource(MR.images.ic_videocam_filled), MR.strings.icon_descr_video_off, enabled, toggleVideo)
+            } else {
+              Spacer(Modifier.size(48.dp))
+              ControlButton(call, painterResource(MR.images.ic_videocam_off), MR.strings.icon_descr_video_on, enabled, toggleVideo)
             }
           }
-          Box(Modifier.padding(start = 32.dp)) {
-            ToggleAudioButton(call, toggleAudio)
+        }
+
+        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)
+            AudioCallInfoView(call)
           }
-          Box(Modifier.fillMaxWidth(), contentAlignment = Alignment.CenterEnd) {
-            Box(Modifier.padding(end = 32.dp)) {
-              ToggleSoundButton(call, speakerCanBeEnabled, toggleSound)
+          Box(Modifier.fillMaxWidth().fillMaxHeight().weight(1f), contentAlignment = Alignment.BottomCenter) {
+            DisabledBackgroundCallsButton()
+          }
+          Box(Modifier.fillMaxWidth().padding(bottom = DEFAULT_BOTTOM_PADDING), contentAlignment = Alignment.CenterStart) {
+            Box(Modifier.fillMaxWidth(), contentAlignment = Alignment.Center) {
+              IconButton(onClick = dismiss, enabled = enabled) {
+                Icon(painterResource(MR.images.ic_call_end_filled), stringResource(MR.strings.icon_descr_hang_up), tint = if (enabled) Color.Red else MaterialTheme.colors.secondary, modifier = Modifier.size(64.dp))
+              }
+            }
+            Box(Modifier.padding(start = 32.dp)) {
+              ToggleAudioButton(call, enabled, toggleAudio)
+            }
+            Box(Modifier.fillMaxWidth(), contentAlignment = Alignment.CenterEnd) {
+              Box(Modifier.padding(end = 32.dp)) {
+                ToggleSoundButton(call, speakerCanBeEnabled && enabled, toggleSound)
+              }
             }
           }
         }
@@ -333,7 +380,7 @@ private fun ActiveCallOverlayLayout(
 }
 
 @Composable
-private fun ControlButton(call: Call, icon: Painter, iconText: StringResource, action: () -> Unit, enabled: Boolean = true) {
+private fun ControlButton(call: Call, icon: Painter, iconText: StringResource, enabled: Boolean = true, action: () -> Unit) {
   if (call.hasMedia) {
     IconButton(onClick = action, enabled = enabled) {
       Icon(icon, stringResource(iconText), tint = if (enabled) Color(0xFFFFFFD8) else MaterialTheme.colors.secondary, modifier = Modifier.size(40.dp))
@@ -344,28 +391,26 @@ private fun ControlButton(call: Call, icon: Painter, iconText: StringResource, a
 }
 
 @Composable
-private fun ToggleAudioButton(call: Call, toggleAudio: () -> Unit) {
+private fun ToggleAudioButton(call: Call, enabled: Boolean = true, toggleAudio: () -> Unit) {
   if (call.audioEnabled) {
-    ControlButton(call, painterResource(MR.images.ic_mic), MR.strings.icon_descr_audio_off, toggleAudio)
+    ControlButton(call, painterResource(MR.images.ic_mic), MR.strings.icon_descr_audio_off, enabled, toggleAudio)
   } else {
-    ControlButton(call, painterResource(MR.images.ic_mic_off), MR.strings.icon_descr_audio_on, toggleAudio)
+    ControlButton(call, painterResource(MR.images.ic_mic_off), MR.strings.icon_descr_audio_on, enabled, toggleAudio)
   }
 }
 
 @Composable
 private fun ToggleSoundButton(call: Call, enabled: Boolean, toggleSound: () -> Unit) {
   if (call.soundSpeaker) {
-    ControlButton(call, painterResource(MR.images.ic_volume_up), MR.strings.icon_descr_speaker_off, toggleSound, enabled)
+    ControlButton(call, painterResource(MR.images.ic_volume_up), MR.strings.icon_descr_speaker_off, enabled, toggleSound)
   } else {
-    ControlButton(call, painterResource(MR.images.ic_volume_down), MR.strings.icon_descr_speaker_on, toggleSound, enabled)
+    ControlButton(call, painterResource(MR.images.ic_volume_down), MR.strings.icon_descr_speaker_on, enabled, 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) {
+fun AudioCallInfoView(call: Call) {
+  Column(horizontalAlignment = Alignment.CenterHorizontally) {
     InfoText(call.contact.chatViewName, style = MaterialTheme.typography.h2)
     InfoText(call.callState.text)
 
@@ -375,6 +420,21 @@ fun CallInfoView(call: Call, alignment: Alignment.Horizontal) {
   }
 }
 
+@Composable
+fun VideoCallInfoView(call: Call) {
+  Column(horizontalAlignment = Alignment.Start) {
+    InfoText(call.callState.text)
+
+    val connInfo = call.connectionInfo
+    val connInfoText = if (connInfo == null) ""  else " (${connInfo.text})"
+    InfoText(call.encryptionStatus + connInfoText)
+  }
+}
+
+@Composable
+fun InfoText(text: String, modifier: Modifier = Modifier, style: TextStyle = MaterialTheme.typography.body2) =
+  Text(text, modifier, color = Color(0xFFFFFFD8), style = style)
+
 @Composable
 private fun DisabledBackgroundCallsButton() {
   var show by remember { mutableStateOf(!platform.androidIsBackgroundCallAllowed()) }
@@ -452,7 +512,6 @@ private fun DisabledBackgroundCallsButton() {
 
 @Composable
 fun WebRTCView(callCommand: SnapshotStateList<WCallCommand>, onResponse: (WVAPIMessage) -> Unit) {
-  val scope = rememberCoroutineScope()
   val webView = remember { mutableStateOf<WebView?>(null) }
   val permissionsState = rememberMultiplePermissionsState(
     permissions = listOf(
@@ -475,10 +534,10 @@ fun WebRTCView(callCommand: SnapshotStateList<WCallCommand>, onResponse: (WVAPIM
     }
     lifecycleOwner.lifecycle.addObserver(observer)
     onDispose {
-      val wv = webView.value
-      if (wv != null) processCommand(wv, WCallCommand.End)
       lifecycleOwner.lifecycle.removeObserver(observer)
-      webView.value?.destroy()
+//      val wv = webView.value
+//      if (wv != null) processCommand(wv, WCallCommand.End)
+//      webView.value?.destroy()
       webView.value = null
     }
   }
@@ -505,7 +564,7 @@ fun WebRTCView(callCommand: SnapshotStateList<WCallCommand>, onResponse: (WVAPIM
     Box(Modifier.fillMaxSize()) {
       AndroidView(
         factory = { AndroidViewContext ->
-          WebView(AndroidViewContext).apply {
+          (staticWebView ?: WebView(androidAppContext)).apply {
             layoutParams = ViewGroup.LayoutParams(
               ViewGroup.LayoutParams.MATCH_PARENT,
               ViewGroup.LayoutParams.MATCH_PARENT,
@@ -530,7 +589,11 @@ fun WebRTCView(callCommand: SnapshotStateList<WCallCommand>, onResponse: (WVAPIM
             webViewSettings.javaScriptEnabled = true
             webViewSettings.mediaPlaybackRequiresUserGesture = false
             webViewSettings.cacheMode = WebSettings.LOAD_NO_CACHE
-            this.loadUrl("file:android_asset/www/android/call.html")
+            if (staticWebView == null) {
+              this.loadUrl("file:android_asset/www/android/call.html")
+            } else {
+              webView.value = this
+            }
           }
         }
       ) { /* WebView */ }
@@ -554,6 +617,15 @@ class WebRTCInterface(private val onResponse: (WVAPIMessage) -> Unit) {
   }
 }
 
+private fun updateActiveCall(initial: Call, transform: (Call) -> Call) {
+  val activeCall = chatModel.activeCall.value
+  if (activeCall != null && activeCall.contact.apiId == initial.contact.apiId) {
+    chatModel.activeCall.value = transform(activeCall)
+  } else {
+    Log.d(TAG, "withActiveCall: ignoring, not in call with the contact ${activeCall?.contact?.id}")
+  }
+}
+
 private class LocalContentWebViewClient(val webView: MutableState<WebView?>, private val assetLoader: WebViewAssetLoader) : WebViewClientCompat() {
   override fun shouldInterceptRequest(
     view: WebView,
@@ -566,6 +638,7 @@ private class LocalContentWebViewClient(val webView: MutableState<WebView?>, pri
     super.onPageFinished(view, url)
     view.evaluateJavascript("sendMessageToNative = (msg) => WebRTCInterface.postMessage(JSON.stringify(msg))", null)
     webView.value = view
+    staticWebView = view
     Log.d(TAG, "WebRTCView: webview ready")
     // for debugging
     // view.evaluateJavascript("sendMessageToNative = ({resp}) => WebRTCInterface.postMessage(JSON.stringify({command: resp}))", null)
@@ -579,6 +652,7 @@ fun PreviewActiveCallOverlayVideo() {
     ActiveCallOverlayLayout(
       call = Call(
         remoteHostId = null,
+        userProfile = Profile.sampleData,
         contact = Contact.sampleData,
         callState = CallState.Negotiated,
         localMedia = CallMediaType.Video,
@@ -605,6 +679,7 @@ fun PreviewActiveCallOverlayAudio() {
     ActiveCallOverlayLayout(
       call = Call(
         remoteHostId = null,
+        userProfile = Profile.sampleData,
         contact = Contact.sampleData,
         callState = CallState.Negotiated,
         localMedia = CallMediaType.Audio,

apps/multiplatform/common/src/androidMain/kotlin/chat/simplex/common/views/chatlist/ChatListView.android.kt

@@ -1,8 +1,112 @@
 package chat.simplex.common.views.chatlist
 
+import android.app.Activity
+import androidx.compose.foundation.*
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material.*
+import androidx.compose.material.ripple.rememberRipple
 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.toArgb
+import androidx.compose.ui.platform.*
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.common.ANDROID_CALL_TOP_PADDING
+import chat.simplex.common.model.durationText
+import chat.simplex.common.platform.*
+import chat.simplex.common.ui.theme.*
+import chat.simplex.common.views.call.*
 import chat.simplex.common.views.helpers.*
+import chat.simplex.res.MR
+import dev.icerock.moko.resources.compose.painterResource
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.datetime.Clock
+
+private val CALL_INTERACTIVE_AREA_HEIGHT = 74.dp
+private val CALL_TOP_OFFSET = (-10).dp
+private val CALL_TOP_GREEN_LINE_HEIGHT = ANDROID_CALL_TOP_PADDING - CALL_TOP_OFFSET
+private val CALL_BOTTOM_ICON_OFFSET = (-15).dp
+private val CALL_BOTTOM_ICON_HEIGHT = CALL_INTERACTIVE_AREA_HEIGHT + CALL_BOTTOM_ICON_OFFSET
 
 @Composable
-actual fun DesktopActiveCallOverlayLayout(newChatSheetState: MutableStateFlow<AnimatedViewState>) {}
+actual fun ActiveCallInteractiveArea(call: Call, newChatSheetState: MutableStateFlow<AnimatedViewState>) {
+  val onClick = { platform.androidStartCallActivity(false) }
+  Box(Modifier.offset(y = CALL_TOP_OFFSET).height(CALL_INTERACTIVE_AREA_HEIGHT)) {
+    val source = remember { MutableInteractionSource() }
+    val indication = rememberRipple(bounded = true, 3000.dp)
+    Box(Modifier.height(CALL_TOP_GREEN_LINE_HEIGHT).clickable(onClick = onClick, indication = indication, interactionSource = source)) {
+      GreenLine(call)
+    }
+    Box(
+      Modifier
+        .offset(y = CALL_BOTTOM_ICON_OFFSET)
+        .size(CALL_BOTTOM_ICON_HEIGHT)
+        .background(SimplexGreen, CircleShape)
+        .clip(CircleShape)
+        .clickable(onClick = onClick, indication = indication, interactionSource = source)
+        .align(Alignment.BottomCenter),
+      contentAlignment = Alignment.Center
+    ) {
+      val media = call.peerMedia ?: call.localMedia
+      if (media == CallMediaType.Video) {
+        Icon(painterResource(MR.images.ic_videocam_filled), null, Modifier.size(27.dp).offset(x = 2.5.dp, y = 2.dp), tint = Color.White)
+      } else {
+        Icon(painterResource(MR.images.ic_call_filled), null, Modifier.size(27.dp).offset(x = -0.5.dp, y = 2.dp), tint = Color.White)
+      }
+    }
+  }
+}
+
+@Composable
+private fun GreenLine(call: Call) {
+  Row(
+    Modifier
+      .fillMaxSize()
+      .background(SimplexGreen)
+      .padding(top = -CALL_TOP_OFFSET)
+      .padding(horizontal = DEFAULT_PADDING),
+    verticalAlignment = Alignment.CenterVertically,
+    horizontalArrangement = Arrangement.Center
+  ) {
+    ContactName(call.contact.displayName)
+    Spacer(Modifier.weight(1f))
+    CallDuration(call)
+  }
+  val window = (LocalContext.current as Activity).window
+  DisposableEffect(Unit) {
+    window.statusBarColor = SimplexGreen.toArgb()
+    onDispose {
+      window.statusBarColor = Color.Black.toArgb()
+    }
+  }
+}
+
+@Composable
+private fun ContactName(name: String) {
+  Text(name, Modifier.width(windowWidth() * 0.35f), color = Color.White, maxLines = 1, overflow = TextOverflow.Ellipsis)
+}
+
+@Composable
+private fun CallDuration(call: Call) {
+  val connectedAt = call.connectedAt
+  if (connectedAt != null) {
+    val time = remember { mutableStateOf(durationText(0)) }
+    LaunchedEffect(Unit) {
+      while (true) {
+        time.value = durationText((Clock.System.now() - connectedAt).inWholeSeconds.toInt())
+        delay(250)
+      }
+    }
+    val text = time.value
+    val sp40Or50 = with(LocalDensity.current) { if (text.length >= 6) 60.sp.toDp() else 42.sp.toDp() }
+    val offset = with(LocalDensity.current) { 7.sp.toDp() }
+    Text(text, Modifier.offset(x = offset).widthIn(min = sp40Or50), color = Color.White)
+  }
+}

apps/multiplatform/common/src/androidMain/kotlin/chat/simplex/common/views/helpers/CustomTimePicker.android.kt

@@ -0,0 +1,106 @@
+package chat.simplex.common.views.helpers
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Text
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import chat.simplex.common.model.CustomTimeUnit
+import chat.simplex.common.ui.theme.DEFAULT_PADDING
+import com.sd.lib.compose.wheel_picker.*
+
+@Composable
+actual fun CustomTimePicker(
+  selection: MutableState<Int>,
+  timeUnitsLimits: List<TimeUnitLimits>
+) {
+  fun getUnitValues(unit: CustomTimeUnit, selectedValue: Int): List<Int> {
+    val unitLimits = timeUnitsLimits.firstOrNull { it.timeUnit == unit } ?: TimeUnitLimits.defaultUnitLimits(unit)
+    val regularUnitValues = (unitLimits.minValue..unitLimits.maxValue).toList()
+    return regularUnitValues + if (regularUnitValues.contains(selectedValue)) emptyList() else listOf(selectedValue)
+  }
+
+  val (unit, duration) = CustomTimeUnit.toTimeUnit(selection.value)
+  val selectedUnit: MutableState<CustomTimeUnit> = remember { mutableStateOf(unit) }
+  val selectedDuration = remember { mutableStateOf(duration) }
+  val selectedUnitValues = remember { mutableStateOf(getUnitValues(selectedUnit.value, selectedDuration.value)) }
+  val isTriggered = remember { mutableStateOf(false) }
+
+  LaunchedEffect(selectedUnit.value) {
+    // on initial composition, if passed selection doesn't fit into picker bounds, so that selectedDuration is bigger than selectedUnit maxValue
+    // (e.g., for selection = 121 seconds: selectedUnit would be Second, selectedDuration would be 121 > selectedUnit maxValue of 120),
+    // selectedDuration would've been replaced by maxValue - isTriggered check prevents this by skipping LaunchedEffect on initial composition
+    if (isTriggered.value) {
+      val maxValue = timeUnitsLimits.firstOrNull { it.timeUnit == selectedUnit.value }?.maxValue
+      if (maxValue != null && selectedDuration.value > maxValue) {
+        selectedDuration.value = maxValue
+        selectedUnitValues.value = getUnitValues(selectedUnit.value, selectedDuration.value)
+      } else {
+        selectedUnitValues.value = getUnitValues(selectedUnit.value, selectedDuration.value)
+        selection.value = selectedUnit.value.toSeconds * selectedDuration.value
+      }
+    } else {
+      isTriggered.value = true
+    }
+  }
+
+  LaunchedEffect(selectedDuration.value) {
+    selection.value = selectedUnit.value.toSeconds * selectedDuration.value
+  }
+
+  Row(
+    Modifier
+      .fillMaxWidth()
+      .padding(horizontal = DEFAULT_PADDING),
+    horizontalArrangement = Arrangement.spacedBy(0.dp)
+  ) {
+    Column(Modifier.weight(1f)) {
+      val durationPickerState = rememberFWheelPickerState(selectedUnitValues.value.indexOf(selectedDuration.value))
+      FVerticalWheelPicker(
+        count = selectedUnitValues.value.count(),
+        state = durationPickerState,
+        unfocusedCount = 2,
+        focus = {
+          FWheelPickerFocusVertical(dividerColor = MaterialTheme.colors.primary)
+        }
+      ) { index ->
+        Text(
+          selectedUnitValues.value[index].toString(),
+          fontSize = 18.sp,
+          color = MaterialTheme.colors.primary
+        )
+      }
+      LaunchedEffect(durationPickerState) {
+        snapshotFlow { durationPickerState.currentIndex }
+          .collect {
+            selectedDuration.value = selectedUnitValues.value[it]
+          }
+      }
+    }
+    Column(Modifier.weight(1f)) {
+      val unitPickerState = rememberFWheelPickerState(timeUnitsLimits.indexOfFirst { it.timeUnit == selectedUnit.value })
+      FVerticalWheelPicker(
+        count = timeUnitsLimits.count(),
+        state = unitPickerState,
+        unfocusedCount = 2,
+        focus = {
+          FWheelPickerFocusVertical(dividerColor = MaterialTheme.colors.primary)
+        }
+      ) { index ->
+        Text(
+          timeUnitsLimits[index].timeUnit.text,
+          fontSize = 18.sp,
+          color = MaterialTheme.colors.primary
+        )
+      }
+      LaunchedEffect(unitPickerState) {
+        snapshotFlow { unitPickerState.currentIndex }
+          .collect {
+            selectedUnit.value = timeUnitsLimits[it].timeUnit
+          }
+      }
+    }
+  }
+}

apps/multiplatform/common/src/commonMain/cpp/android/simplex-api.c

@@ -66,6 +66,7 @@ extern char *chat_parse_markdown(const char *str);
 extern char *chat_parse_server(const char *str);
 extern char *chat_password_hash(const char *pwd, const char *salt);
 extern char *chat_valid_name(const char *name);
+extern int chat_json_length(const char *str);
 extern char *chat_write_file(chat_ctrl ctrl, const char *path, char *ptr, int length);
 extern char *chat_read_file(const char *path, const char *key, const char *nonce);
 extern char *chat_encrypt_file(chat_ctrl ctrl, const char *from_path, const char *to_path);
@@ -163,6 +164,14 @@ Java_chat_simplex_common_platform_CoreKt_chatValidName(JNIEnv *env, jclass clazz
     return res;
 }
 
+JNIEXPORT int JNICALL
+Java_chat_simplex_common_platform_CoreKt_chatJsonLength(JNIEnv *env, jclass clazz, jstring str) {
+    const char *_str = (*env)->GetStringUTFChars(env, str, JNI_FALSE);
+    int res = chat_json_length(_str);
+    (*env)->ReleaseStringUTFChars(env, str, _str);
+    return res;
+}
+
 JNIEXPORT jstring JNICALL
 Java_chat_simplex_common_platform_CoreKt_chatWriteFile(JNIEnv *env, jclass clazz, jlong controller, jstring path, jobject buffer) {
     const char *_path = (*env)->GetStringUTFChars(env, path, JNI_FALSE);

apps/multiplatform/common/src/commonMain/cpp/desktop/simplex-api.c

@@ -39,6 +39,7 @@ extern char *chat_parse_markdown(const char *str);
 extern char *chat_parse_server(const char *str);
 extern char *chat_password_hash(const char *pwd, const char *salt);
 extern char *chat_valid_name(const char *name);
+extern int chat_json_length(const char *str);
 extern char *chat_write_file(chat_ctrl ctrl, const char *path, char *ptr, int length);
 extern char *chat_read_file(const char *path, const char *key, const char *nonce);
 extern char *chat_encrypt_file(chat_ctrl ctrl, const char *from_path, const char *to_path);
@@ -173,6 +174,14 @@ Java_chat_simplex_common_platform_CoreKt_chatValidName(JNIEnv *env, jclass clazz
     return res;
 }
 
+JNIEXPORT int JNICALL
+Java_chat_simplex_common_platform_CoreKt_chatJsonLength(JNIEnv *env, jclass clazz, jstring str) {
+    const char *_str = encode_to_utf8_chars(env, str);
+    int res = chat_json_length(_str);
+    (*env)->ReleaseStringUTFChars(env, str, _str);
+    return res;
+}
+
 JNIEXPORT jstring JNICALL
 Java_chat_simplex_common_platform_CoreKt_chatWriteFile(JNIEnv *env, jclass clazz, jlong controller, jstring path, jobject buffer) {
     const char *_path = encode_to_utf8_chars(env, path);

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/App.kt

@@ -1,16 +1,19 @@
 package chat.simplex.common
 
 import androidx.compose.animation.core.Animatable
-import androidx.compose.foundation.background
-import androidx.compose.foundation.clickable
+import androidx.compose.foundation.*
 import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material.*
+import androidx.compose.material.ripple.rememberRipple
 import androidx.compose.runtime.*
 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.draw.clipToBounds
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.graphicsLayer
 import androidx.compose.ui.unit.dp
 import chat.simplex.common.views.usersettings.SetDeliveryReceiptsView
@@ -20,8 +23,7 @@ import chat.simplex.common.ui.theme.*
 import chat.simplex.common.views.CreateFirstProfile
 import chat.simplex.common.views.helpers.SimpleButton
 import chat.simplex.common.views.SplashView
-import chat.simplex.common.views.call.ActiveCallView
-import chat.simplex.common.views.call.IncomingCallAlertView
+import chat.simplex.common.views.call.*
 import chat.simplex.common.views.chat.ChatView
 import chat.simplex.common.views.chatlist.*
 import chat.simplex.common.views.database.DatabaseErrorView
@@ -108,6 +110,7 @@ fun MainScreen() {
     val localUserCreated = chatModel.localUserCreated.value
     var showInitializationView by remember { mutableStateOf(false) }
     when {
+      chatModel.dbMigrationInProgress.value -> DefaultProgressView(stringResource(MR.strings.database_migration_in_progress))
       chatModel.chatDbStatus.value == null && showInitializationView -> DefaultProgressView(stringResource(MR.strings.opening_database))
       showChatDatabaseError -> {
         // Prevent showing keyboard on Android when: passcode enabled and database password not saved
@@ -168,7 +171,17 @@ fun MainScreen() {
       }
     } else {
       if (chatModel.showCallView.value) {
-        ActiveCallView()
+        if (appPlatform.isAndroid) {
+          LaunchedEffect(Unit) {
+            // This if prevents running the activity in the following condition:
+            // - the activity already started before and was destroyed by collapsing active call (start audio call, press back button, go to a launcher)
+            if (!chatModel.activeCallViewIsCollapsed.value) {
+              platform.androidStartCallActivity(false)
+            }
+          }
+        } else {
+          ActiveCallView()
+        }
       } else {
         // It's needed for privacy settings toggle, so it can be shown even if the app is passcode unlocked
         ModalManager.fullscreen.showPasscodeInView()
@@ -205,9 +218,13 @@ fun MainScreen() {
   }
 }
 
+val ANDROID_CALL_TOP_PADDING = 40.dp
+
 @Composable
 fun AndroidScreen(settingsState: SettingsViewState) {
   BoxWithConstraints {
+    val call = remember { chatModel.activeCall} .value
+    val showCallArea = call != null && call.callState != CallState.WaitCapabilities && call.callState != CallState.InvitationAccepted
     var currentChatId by rememberSaveable { mutableStateOf(chatModel.chatId.value) }
     val offset = remember { Animatable(if (chatModel.chatId.value == null) 0f else maxWidth.value) }
     Box(
@@ -215,6 +232,7 @@ fun AndroidScreen(settingsState: SettingsViewState) {
         .graphicsLayer {
           translationX = -offset.value.dp.toPx()
         }
+        .padding(top = if (showCallArea) ANDROID_CALL_TOP_PADDING else 0.dp)
     ) {
       StartPartOfScreen(settingsState)
     }
@@ -241,11 +259,17 @@ fun AndroidScreen(settingsState: SettingsViewState) {
           }
       }
     }
-    Box(Modifier.graphicsLayer { translationX = maxWidth.toPx() - offset.value.dp.toPx() }) Box2@{
+    Box(Modifier
+      .graphicsLayer { translationX = maxWidth.toPx() - offset.value.dp.toPx() }
+      .padding(top = if (showCallArea) ANDROID_CALL_TOP_PADDING else 0.dp)
+    ) Box2@{
       currentChatId?.let {
         ChatView(it, chatModel, onComposed)
       }
     }
+    if (call != null && showCallArea) {
+      ActiveCallInteractiveArea(call, remember { MutableStateFlow(AnimatedViewState.GONE) })
+    }
   }
 }
 

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/ChatModel.kt

@@ -2,6 +2,7 @@ package chat.simplex.common.model
 
 import androidx.compose.material.*
 import androidx.compose.runtime.*
+import androidx.compose.runtime.snapshots.SnapshotStateList
 import androidx.compose.runtime.snapshots.SnapshotStateMap
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.SpanStyle
@@ -48,6 +49,7 @@ object ChatModel {
   val chatDbEncrypted = mutableStateOf<Boolean?>(false)
   val chatDbStatus = mutableStateOf<DBMigrationResult?>(null)
   val ctrlInitInProgress = mutableStateOf(false)
+  val dbMigrationInProgress = mutableStateOf(false)
   val chats = mutableStateListOf<Chat>()
   // map of connections network statuses, key is agent connection id
   val networkStatuses = mutableStateMapOf<String, NetworkStatus>()
@@ -55,7 +57,7 @@ object ChatModel {
 
   // current chat
   val chatId = mutableStateOf<String?>(null)
-  val chatItems = mutableStateListOf<ChatItem>()
+  val chatItems = mutableStateOf(SnapshotStateList<ChatItem>())
   // rhId, chatId
   val deletedChats = mutableStateOf<List<Pair<Long?, String>>>(emptyList())
   val chatItemStatuses = mutableMapOf<Long, CIStatus>()
@@ -63,8 +65,6 @@ object ChatModel {
 
   val terminalItems = mutableStateOf<List<TerminalItem>>(listOf())
   val userAddress = mutableStateOf<UserContactLinkRec?>(null)
-  // Allows to temporary save servers that are being edited on multiple screens
-  val userSMPServersUnsaved = mutableStateOf<(List<ServerCfg>)?>(null)
   val chatItemTTL = mutableStateOf<ChatItemTTL>(ChatItemTTL.None)
 
   // set when app opened from external intent
@@ -96,6 +96,7 @@ object ChatModel {
   val activeCallInvitation = mutableStateOf<RcvCallInvitation?>(null)
   val activeCall = mutableStateOf<Call?>(null)
   val activeCallViewIsVisible = mutableStateOf<Boolean>(false)
+  val activeCallViewIsCollapsed = mutableStateOf<Boolean>(false)
   val callCommand = mutableStateListOf<WCallCommand>()
   val showCallView = mutableStateOf(false)
   val switchingCall = mutableStateOf(false)
@@ -269,18 +270,15 @@ object ChatModel {
     } else {
       addChat(Chat(remoteHostId = rhId, chatInfo = cInfo, chatItems = arrayListOf(cItem)))
     }
-    Log.d(TAG, "TODOCHAT: addChatItem: adding to chat ${chatId.value} from ${cInfo.id} ${cItem.id}, size ${chatItems.size}")
     withContext(Dispatchers.Main) {
       // add to current chat
       if (chatId.value == cInfo.id) {
-        Log.d(TAG, "TODOCHAT: addChatItem: chatIds are equal, size ${chatItems.size}")
         // Prevent situation when chat item already in the list received from backend
-        if (chatItems.none { it.id == cItem.id }) {
-          if (chatItems.lastOrNull()?.id == ChatItem.TEMP_LIVE_CHAT_ITEM_ID) {
-            chatItems.add(kotlin.math.max(0, chatItems.lastIndex), cItem)
+        if (chatItems.value.none { it.id == cItem.id }) {
+          if (chatItems.value.lastOrNull()?.id == ChatItem.TEMP_LIVE_CHAT_ITEM_ID) {
+            chatItems.add(kotlin.math.max(0, chatItems.value.lastIndex), cItem)
           } else {
             chatItems.add(cItem)
-            Log.d(TAG, "TODOCHAT: addChatItem: added to chat ${chatId.value} from ${cInfo.id} ${cItem.id}, size ${chatItems.size}")
           }
         }
       }
@@ -307,14 +305,13 @@ object ChatModel {
       addChat(Chat(remoteHostId = rhId, chatInfo = cInfo, chatItems = arrayListOf(cItem)))
       res = true
     }
-    Log.d(TAG, "TODOCHAT: upsertChatItem: upserting to chat ${chatId.value} from ${cInfo.id} ${cItem.id}, size ${chatItems.size}")
     return withContext(Dispatchers.Main) {
       // update current chat
       if (chatId.value == cInfo.id) {
-        val itemIndex = chatItems.indexOfFirst { it.id == cItem.id }
+        val items = chatItems.value
+        val itemIndex = items.indexOfFirst { it.id == cItem.id }
         if (itemIndex >= 0) {
-          chatItems[itemIndex] = cItem
-          Log.d(TAG, "TODOCHAT: upsertChatItem: updated in chat $chatId from ${cInfo.id} ${cItem.id}, size ${chatItems.size}")
+          items[itemIndex] = cItem
           false
         } else {
           val status = chatItemStatuses.remove(cItem.id)
@@ -324,7 +321,6 @@ object ChatModel {
             cItem
           }
           chatItems.add(ci)
-          Log.d(TAG, "TODOCHAT: upsertChatItem: added to chat $chatId from ${cInfo.id} ${cItem.id}, size ${chatItems.size}")
           true
         }
       } else {
@@ -336,9 +332,10 @@ object ChatModel {
   suspend fun updateChatItem(cInfo: ChatInfo, cItem: ChatItem, status: CIStatus? = null) {
     withContext(Dispatchers.Main) {
       if (chatId.value == cInfo.id) {
-        val itemIndex = chatItems.indexOfFirst { it.id == cItem.id }
+        val items = chatItems.value
+        val itemIndex = items.indexOfFirst { it.id == cItem.id }
         if (itemIndex >= 0) {
-          chatItems[itemIndex] = cItem
+          items[itemIndex] = cItem
         }
       } else if (status != null) {
         chatItemStatuses[cItem.id] = status
@@ -362,10 +359,10 @@ object ChatModel {
     }
     // remove from current chat
     if (chatId.value == cInfo.id) {
-      val itemIndex = chatItems.indexOfFirst { it.id == cItem.id }
-      if (itemIndex >= 0) {
-        AudioPlayer.stop(chatItems[itemIndex])
-        chatItems.removeAt(itemIndex)
+      chatItems.removeAll {
+        val remove = it.id == cItem.id
+        if (remove) { AudioPlayer.stop(it) }
+        remove
       }
     }
   }
@@ -406,7 +403,7 @@ object ChatModel {
   }
 
   fun removeLiveDummy() {
-    if (chatItems.lastOrNull()?.id == ChatItem.TEMP_LIVE_CHAT_ITEM_ID) {
+    if (chatItems.value.lastOrNull()?.id == ChatItem.TEMP_LIVE_CHAT_ITEM_ID) {
       chatItems.removeLast()
     }
   }
@@ -438,14 +435,14 @@ object ChatModel {
     var markedRead = 0
     if (chatId.value == cInfo.id) {
       var i = 0
-      Log.d(TAG, "TODOCHAT: markItemsReadInCurrentChat: marking read ${cInfo.id}, current chatId ${chatId.value}, size was ${chatItems.size}")
-      while (i < chatItems.count()) {
-        val item = chatItems[i]
+      val items = chatItems.value
+      while (i < items.size) {
+        val item = items[i]
         if (item.meta.itemStatus is CIStatus.RcvNew && (range == null || (range.from <= item.id && item.id <= range.to))) {
           val newItem = item.withStatus(CIStatus.RcvRead())
-          chatItems[i] = newItem
+          items[i] = newItem
           if (newItem.meta.itemLive != true && newItem.meta.itemTimed?.ttl != null) {
-            chatItems[i] = newItem.copy(meta = newItem.meta.copy(itemTimed = newItem.meta.itemTimed.copy(
+            items[i] = newItem.copy(meta = newItem.meta.copy(itemTimed = newItem.meta.itemTimed.copy(
               deleteAt = Clock.System.now() + newItem.meta.itemTimed.ttl.toDuration(DurationUnit.SECONDS)))
             )
           }
@@ -453,7 +450,6 @@ object ChatModel {
         }
         i += 1
       }
-      Log.d(TAG, "TODOCHAT: markItemsReadInCurrentChat: marked read ${cInfo.id}, current chatId ${chatId.value}, size now ${chatItems.size}")
     }
     return markedRead
   }
@@ -644,7 +640,8 @@ object ChatModel {
   }
 
   fun addTerminalItem(item: TerminalItem) {
-    if (terminalItems.value.size >= 500) {
+    val maxItems = if (appPreferences.developerTools.get()) 500 else 200
+    if (terminalItems.value.size >= maxItems) {
       terminalItems.value = terminalItems.value.subList(1, terminalItems.value.size)
     }
     terminalItems.value += item
@@ -969,6 +966,16 @@ sealed class ChatInfo: SomeChat, NamedChat {
       is Group -> groupInfo.chatSettings
       else -> null
     }
+
+  val chatTs: Instant
+    get() = when(this) {
+      is Direct -> contact.chatTs ?: contact.updatedAt
+      is Group -> groupInfo.chatTs ?: groupInfo.updatedAt
+      is Local -> noteFolder.chatTs
+      is ContactRequest -> contactRequest.updatedAt
+      is ContactConnection -> contactConnection.updatedAt
+      is InvalidJSON -> updatedAt
+    }
 }
 
 @Serializable
@@ -1009,6 +1016,7 @@ data class Contact(
   val mergedPreferences: ContactUserPreferences,
   override val createdAt: Instant,
   override val updatedAt: Instant,
+  val chatTs: Instant?,
   val contactGroupMemberId: Long? = null,
   val contactGrpInvSent: Boolean
 ): SomeChat, NamedChat {
@@ -1077,6 +1085,7 @@ data class Contact(
       mergedPreferences = ContactUserPreferences.sampleData,
       createdAt = Clock.System.now(),
       updatedAt = Clock.System.now(),
+      chatTs = Clock.System.now(),
       contactGrpInvSent = false
     )
   }
@@ -1204,7 +1213,8 @@ data class GroupInfo (
   val hostConnCustomUserProfileId: Long? = null,
   val chatSettings: ChatSettings,
   override val createdAt: Instant,
-  override val updatedAt: Instant
+  override val updatedAt: Instant,
+  val chatTs: Instant?
 ): SomeChat, NamedChat {
   override val chatType get() = ChatType.Group
   override val id get() = "#$groupId"
@@ -1245,7 +1255,8 @@ data class GroupInfo (
       hostConnCustomUserProfileId = null,
       chatSettings = ChatSettings(enableNtfs = MsgFilter.All, sendRcpts = null, favorite = false),
       createdAt = Clock.System.now(),
-      updatedAt = Clock.System.now()
+      updatedAt = Clock.System.now(),
+      chatTs = Clock.System.now()
     )
   }
 }
@@ -1507,7 +1518,8 @@ class NoteFolder(
   val favorite: Boolean,
   val unread: Boolean,
   override val createdAt: Instant,
-  override val updatedAt: Instant
+  override val updatedAt: Instant,
+  val chatTs: Instant
 ): SomeChat, NamedChat {
   override val chatType get() = ChatType.Local
   override val id get() = "*$noteFolderId"
@@ -1530,7 +1542,8 @@ class NoteFolder(
       favorite = false,
       unread = false,
       createdAt = Clock.System.now(),
-      updatedAt = Clock.System.now()
+      updatedAt = Clock.System.now(),
+      chatTs = Clock.System.now()
     )
   }
 }
@@ -1809,7 +1822,7 @@ data class ChatItem (
       is CIContent.SndGroupInvitation -> false
       is CIContent.RcvDirectEventContent -> when (content.rcvDirectEvent) {
         is RcvDirectEvent.ContactDeleted -> false
-        is RcvDirectEvent.ProfileUpdated -> true
+        is RcvDirectEvent.ProfileUpdated -> false
       }
       is CIContent.RcvGroupEventContent -> when (content.rcvGroupEvent) {
         is RcvGroupEvent.MemberAdded -> false
@@ -1990,6 +2003,46 @@ data class ChatItem (
   }
 }
 
+fun MutableState<SnapshotStateList<ChatItem>>.add(index: Int, chatItem: ChatItem) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); add(index, chatItem) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.add(chatItem: ChatItem) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); add(chatItem) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.addAll(index: Int, chatItems: List<ChatItem>) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); addAll(index, chatItems) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.addAll(chatItems: List<ChatItem>) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); addAll(chatItems) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.removeAll(block: (ChatItem) -> Boolean) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); removeAll(block) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.removeAt(index: Int) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); removeAt(index) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.removeLast() {
+  value = SnapshotStateList<ChatItem>().apply { addAll(value); removeLast() }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.replaceAll(chatItems: List<ChatItem>) {
+  value = SnapshotStateList<ChatItem>().apply { addAll(chatItems) }
+}
+
+fun MutableState<SnapshotStateList<ChatItem>>.clear() {
+  value = SnapshotStateList<ChatItem>()
+}
+
+fun State<SnapshotStateList<ChatItem>>.asReversed(): MutableList<ChatItem> = value.asReversed()
+
+val State<List<ChatItem>>.size: Int get() = value.size
+
 enum class CIMergeCategory {
   MemberConnected,
   RcvGroupEvent,

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/SimpleXAPI.kt

@@ -451,7 +451,21 @@ object ChatController {
         }
         try {
           val msg = recvMsg(ctrl)
-          if (msg != null) processReceivedMsg(msg)
+          if (msg != null) {
+            val finishedWithoutTimeout = withTimeoutOrNull(60_000L) {
+              processReceivedMsg(msg)
+            }
+            if (finishedWithoutTimeout == null) {
+              Log.e(TAG, "Timeout reached while processing received message: " + msg.resp.responseType)
+              if (appPreferences.developerTools.get() && appPreferences.showSlowApiCalls.get()) {
+                AlertManager.shared.showAlertMsg(
+                  title = generalGetString(MR.strings.possible_slow_function_title),
+                  text = generalGetString(MR.strings.possible_slow_function_desc).format(60, msg.resp.responseType + "\n" + Exception().stackTraceToString()),
+                  shareText = true
+                )
+              }
+            }
+          }
         } catch (e: Exception) {
           Log.e(TAG, "ChatController recvMsg/processReceivedMsg exception: " + e.stackTraceToString());
         } catch (e: Throwable) {
@@ -617,12 +631,6 @@ object ChatController {
     throw Error("failed to set remote hosts folder: ${r.responseType} ${r.details}")
   }
 
-  suspend fun apiSetXFTPConfig(cfg: XFTPFileConfig?) {
-    val r = sendCmd(null, CC.ApiSetXFTPConfig(cfg))
-    if (r is CR.CmdOk) return
-    throw Error("apiSetXFTPConfig bad response: ${r.responseType} ${r.details}")
-  }
-
   suspend fun apiSetEncryptLocalFiles(enable: Boolean) = sendCommandOkResp(null, CC.ApiSetEncryptLocalFiles(enable))
 
   suspend fun apiExportArchive(config: ArchiveConfig) {
@@ -1685,7 +1693,7 @@ object ChatController {
           chatModel.networkStatuses[s.agentConnId] = s.networkStatus
         }
       }
-      is CR.NewChatItem -> {
+      is CR.NewChatItem -> withBGApi {
         val cInfo = r.chatItem.chatInfo
         val cItem = r.chatItem.chatItem
         if (active(r.user)) {
@@ -1700,7 +1708,7 @@ object ChatController {
             ((mc is MsgContent.MCImage && file.fileSize <= MAX_IMAGE_SIZE_AUTO_RCV)
                 || (mc is MsgContent.MCVideo && file.fileSize <= MAX_VIDEO_SIZE_AUTO_RCV)
                 || (mc is MsgContent.MCVoice && file.fileSize <= MAX_VOICE_SIZE_AUTO_RCV && file.fileStatus !is CIFileStatus.RcvAccepted))) {
-          withBGApi { receiveFile(rhId, r.user, file.fileId, auto = true) }
+          receiveFile(rhId, r.user, file.fileId, auto = true)
         }
         if (cItem.showNotification && (allowedToShowNotification() || chatModel.chatId.value != cInfo.id || chatModel.remoteHostId() != rhId)) {
           ntfManager.notifyMessageReceived(r.user, cInfo, cItem)
@@ -1900,10 +1908,8 @@ object ChatController {
         if (invitation != null) {
           chatModel.callManager.reportCallRemoteEnded(invitation = invitation)
         }
-        withCall(r, r.contact) { _ ->
-          chatModel.callCommand.add(WCallCommand.End)
-          chatModel.activeCall.value = null
-          chatModel.showCallView.value = false
+        withCall(r, r.contact) { call ->
+          withBGApi { chatModel.callManager.endCall(call) }
         }
       }
       is CR.ContactSwitch ->
@@ -2159,10 +2165,6 @@ object ChatController {
     }
   }
 
-  fun getXFTPCfg(): XFTPFileConfig {
-    return XFTPFileConfig(minFileSize = 0)
-  }
-
   fun getNetCfg(): NetCfg {
     val useSocksProxy = appPrefs.networkUseSocksProxy.get()
     val proxyHostPort  = appPrefs.networkProxyHostPort.get()
@@ -2271,7 +2273,6 @@ sealed class CC {
   class SetTempFolder(val tempFolder: String): CC()
   class SetFilesFolder(val filesFolder: String): CC()
   class SetRemoteHostsFolder(val remoteHostsFolder: String): CC()
-  class ApiSetXFTPConfig(val config: XFTPFileConfig?): CC()
   class ApiSetEncryptLocalFiles(val enable: Boolean): CC()
   class ApiExportArchive(val config: ArchiveConfig): CC()
   class ApiImportArchive(val config: ArchiveConfig): CC()
@@ -2401,7 +2402,6 @@ sealed class CC {
     is SetTempFolder -> "/_temp_folder $tempFolder"
     is SetFilesFolder -> "/_files_folder $filesFolder"
     is SetRemoteHostsFolder -> "/remote_hosts_folder $remoteHostsFolder"
-    is ApiSetXFTPConfig -> if (config != null) "/_xftp on ${json.encodeToString(config)}" else "/_xftp off"
     is ApiSetEncryptLocalFiles -> "/_files_encrypt ${onOff(enable)}"
     is ApiExportArchive -> "/_db export ${json.encodeToString(config)}"
     is ApiImportArchive -> "/_db import ${json.encodeToString(config)}"
@@ -2536,7 +2536,6 @@ sealed class CC {
     is SetTempFolder -> "setTempFolder"
     is SetFilesFolder -> "setFilesFolder"
     is SetRemoteHostsFolder -> "setRemoteHostsFolder"
-    is ApiSetXFTPConfig -> "apiSetXFTPConfig"
     is ApiSetEncryptLocalFiles -> "apiSetEncryptLocalFiles"
     is ApiExportArchive -> "apiExportArchive"
     is ApiImportArchive -> "apiImportArchive"
@@ -2702,9 +2701,6 @@ sealed class ChatPagination {
 @Serializable
 class ComposedMessage(val fileSource: CryptoFile?, val quotedItemId: Long?, val msgContent: MsgContent)
 
-@Serializable
-class XFTPFileConfig(val minFileSize: Long)
-
 @Serializable
 class ArchiveConfig(val archivePath: String, val disableCompression: Boolean? = null, val parentTempDirectory: String? = null)
 

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/platform/Core.kt

@@ -28,6 +28,7 @@ external fun chatParseMarkdown(str: String): String
 external fun chatParseServer(str: String): String
 external fun chatPasswordHash(pwd: String, salt: String): String
 external fun chatValidName(name: String): String
+external fun chatJsonLength(str: String): Int
 external fun chatWriteFile(ctrl: ChatCtrl, path: String, buffer: ByteBuffer): String
 external fun chatReadFile(path: String, key: String, nonce: String): Array<Any>
 external fun chatEncryptFile(ctrl: ChatCtrl, fromPath: String, toPath: String): String
@@ -42,7 +43,7 @@ val appPreferences: AppPreferences
 val chatController: ChatController = ChatController
 
 fun initChatControllerAndRunMigrations() {
-  withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+  withLongRunningApi {
     if (appPreferences.chatStopped.get() && appPreferences.storeDBPassphrase.get() && ksDatabasePassword.get() != null) {
       initChatController(startChat = ::showStartChatAfterRestartAlert)
     } else {
@@ -58,10 +59,23 @@ suspend fun initChatController(useKey: String? = null, confirmMigrations: Migrat
     chatModel.ctrlInitInProgress.value = true
     val dbKey = useKey ?: DatabaseUtils.useDatabaseKey()
     val confirm = confirmMigrations ?: if (appPreferences.developerTools.get() && appPreferences.confirmDBUpgrades.get()) MigrationConfirmation.Error else MigrationConfirmation.YesUp
-    val migrated: Array<Any> = chatMigrateInit(dbAbsolutePrefixPath, dbKey, confirm.value)
-    val res: DBMigrationResult = kotlin.runCatching {
+    var migrated: Array<Any> = chatMigrateInit(dbAbsolutePrefixPath, dbKey, MigrationConfirmation.Error.value)
+    var res: DBMigrationResult = runCatching {
       json.decodeFromString<DBMigrationResult>(migrated[0] as String)
     }.getOrElse { DBMigrationResult.Unknown(migrated[0] as String) }
+    val rerunMigration = res is DBMigrationResult.ErrorMigration && when (res.migrationError) {
+      // we don't allow to run down migrations without confirmation in UI, so currently it won't be YesUpDown
+      is MigrationError.Upgrade -> confirm == MigrationConfirmation.YesUp || confirm == MigrationConfirmation.YesUpDown
+      is MigrationError.Downgrade ->  confirm == MigrationConfirmation.YesUpDown
+      is MigrationError.Error -> false
+    }
+    if (rerunMigration) {
+      chatModel.dbMigrationInProgress.value = true
+      migrated = chatMigrateInit(dbAbsolutePrefixPath, dbKey, confirm.value)
+      res = runCatching {
+        json.decodeFromString<DBMigrationResult>(migrated[0] as String)
+      }.getOrElse { DBMigrationResult.Unknown(migrated[0] as String) }
+    }
     val ctrl = if (res is DBMigrationResult.OK) {
       migrated[1] as Long
     } else null
@@ -77,7 +91,6 @@ suspend fun initChatController(useKey: String? = null, confirmMigrations: Migrat
     if (appPlatform.isDesktop) {
       controller.apiSetRemoteHostsFolder(remoteHostsDir.absolutePath)
     }
-    controller.apiSetXFTPConfig(controller.getXFTPCfg())
     controller.apiSetEncryptLocalFiles(controller.appPrefs.privacyEncryptLocalFiles.get())
     // If we migrated successfully means previous re-encryption process on database level finished successfully too
     if (appPreferences.encryptionStartedAt.get() != null) appPreferences.encryptionStartedAt.set(null)
@@ -119,6 +132,7 @@ suspend fun initChatController(useKey: String? = null, confirmMigrations: Migrat
     }
   } finally {
     chatModel.ctrlInitInProgress.value = false
+    chatModel.dbMigrationInProgress.value = false
   }
 }
 

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/platform/NtfManager.kt

@@ -55,7 +55,7 @@ abstract class NtfManager {
   }
 
   fun openChatAction(userId: Long?, chatId: ChatId) {
-    withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+    withLongRunningApi {
       awaitChatStartedIfNeeded(chatModel)
       if (userId != null && userId != chatModel.currentUser.value?.userId && chatModel.currentUser.value != null) {
         // TODO include remote host ID in desktop notifications?
@@ -70,7 +70,7 @@ abstract class NtfManager {
   }
 
   fun showChatsAction(userId: Long?) {
-    withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+    withLongRunningApi {
       awaitChatStartedIfNeeded(chatModel)
       if (userId != null && userId != chatModel.currentUser.value?.userId && chatModel.currentUser.value != null) {
         // TODO include remote host ID in desktop notifications?

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/platform/Platform.kt

@@ -1,16 +1,21 @@
 package chat.simplex.common.platform
 
+import chat.simplex.common.model.ChatId
 import chat.simplex.common.model.NotificationsMode
 
 interface PlatformInterface {
   suspend fun androidServiceStart() {}
   fun androidServiceSafeStop() {}
+  fun androidCallServiceSafeStop() {}
   fun androidNotificationsModeChanged(mode: NotificationsMode) {}
   fun androidChatStartedAfterBeingOff() {}
   fun androidChatStopped() {}
   fun androidChatInitializedAndStarted() {}
   fun androidIsBackgroundCallAllowed(): Boolean = true
   fun androidSetNightModeIfSupported() {}
+  fun androidStartCallActivity(acceptCall: Boolean, remoteHostId: Long? = null, chatId: ChatId? = null) {}
+  fun androidPictureInPictureAllowed(): Boolean = true
+  fun androidCallEnded() {}
   suspend fun androidAskToAllowBackgroundCalls(): Boolean = true
 }
 /**

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/call/CallManager.kt

@@ -1,6 +1,6 @@
 package chat.simplex.common.views.call
 
-import chat.simplex.common.model.ChatModel
+import chat.simplex.common.model.*
 import chat.simplex.common.platform.*
 import chat.simplex.common.views.helpers.withBGApi
 import kotlinx.datetime.Clock
@@ -23,27 +23,29 @@ class CallManager(val chatModel: ChatModel) {
     }
   }
 
-  fun acceptIncomingCall(invitation: RcvCallInvitation) {
+  fun acceptIncomingCall(invitation: RcvCallInvitation) = withBGApi {
     val call = chatModel.activeCall.value
-    if (call == null) {
-      justAcceptIncomingCall(invitation = invitation)
+    val contactInfo = chatModel.controller.apiContactInfo(invitation.remoteHostId, invitation.contact.contactId)
+    val profile = contactInfo?.second ?: invitation.user.profile.toProfile()
+    // In case the same contact calling while previous call didn't end yet (abnormal ending of call from the other side)
+    if (call == null || (call.remoteHostId == invitation.remoteHostId && call.contact.id == invitation.contact.id)) {
+      justAcceptIncomingCall(invitation = invitation, profile)
     } else {
-      withBGApi {
-        chatModel.switchingCall.value = true
-        try {
-          endCall(call = call)
-          justAcceptIncomingCall(invitation = invitation)
-        } finally {
-          chatModel.switchingCall.value = false
-        }
+      chatModel.switchingCall.value = true
+      try {
+        endCall(call = call)
+        justAcceptIncomingCall(invitation = invitation, profile)
+      } finally {
+        chatModel.switchingCall.value = false
       }
     }
   }
 
-  private fun justAcceptIncomingCall(invitation: RcvCallInvitation) {
+  private fun justAcceptIncomingCall(invitation: RcvCallInvitation, userProfile: Profile) {
     with (chatModel) {
       activeCall.value = Call(
         remoteHostId = invitation.remoteHostId,
+        userProfile = userProfile,
         contact = invitation.contact,
         callState = CallState.InvitationAccepted,
         localMedia = invitation.callType.media,
@@ -68,17 +70,23 @@ class CallManager(val chatModel: ChatModel) {
   }
 
   suspend fun endCall(call: Call) {
-    with (chatModel) {
+    with(chatModel) {
+      // If there is active call currently and it's with other contact, don't interrupt it
+      if (activeCall.value != null && !(activeCall.value?.remoteHostId == call.remoteHostId && activeCall.value?.contact?.id == call.contact.id)) return
+
+      // Don't destroy WebView if you plan to accept next call right after this one
+      if (!switchingCall.value) {
+        showCallView.value = false
+        activeCall.value = null
+        activeCallViewIsCollapsed.value = false
+        platform.androidCallEnded()
+      }
       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.add(WCallCommand.End)
-        showCallView.value = false
+        //callCommand.add(WCallCommand.End)
         controller.apiEndCall(call.remoteHostId, call.contact)
-        activeCall.value = null
       }
     }
   }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/call/WebRTC.kt

@@ -7,11 +7,11 @@ import kotlinx.datetime.Instant
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 import java.net.URI
-import java.util.*
 import kotlin.collections.ArrayList
 
 data class Call(
   val remoteHostId: Long?,
+  val userProfile: Profile,
   val contact: Contact,
   val callState: CallState,
   val localMedia: CallMediaType,
@@ -23,7 +23,7 @@ data class Call(
   val soundSpeaker: Boolean = localMedia == CallMediaType.Video,
   var localCamera: VideoCamera = VideoCamera.User,
   val connectionInfo: ConnectionInfo? = null,
-  var connectedAt: Instant? = null
+  var connectedAt: Instant? = null,
 ) {
   val encrypted: Boolean get() = localEncrypted && sharedKey != null
   val localEncrypted: Boolean get() = localCapabilities?.encryption ?: false
@@ -36,6 +36,9 @@ data class Call(
   }
 
   val hasMedia: Boolean get() = callState == CallState.OfferSent || callState == CallState.Negotiated || callState == CallState.Connected
+
+  fun supportsVideo(): Boolean = peerMedia == CallMediaType.Video || localMedia == CallMediaType.Video
+
 }
 
 enum class CallState {
@@ -75,6 +78,7 @@ sealed class WCallCommand {
   @Serializable @SerialName("media") data class Media(val media: CallMediaType, val enable: Boolean): WCallCommand()
   @Serializable @SerialName("camera") data class Camera(val camera: VideoCamera): WCallCommand()
   @Serializable @SerialName("description") data class Description(val state: String, val description: String): WCallCommand()
+  @Serializable @SerialName("layout") data class Layout(val layout: LayoutType): WCallCommand()
   @Serializable @SerialName("end") object End: WCallCommand()
 }
 
@@ -167,6 +171,13 @@ enum class VideoCamera {
   val flipped: VideoCamera get() = if (this == User) Environment else User
 }
 
+@Serializable
+enum class LayoutType {
+  @SerialName("default") Default,
+  @SerialName("localVideo") LocalVideo,
+  @SerialName("remoteVideo") RemoteVideo
+}
+
 @Serializable
 data class ConnectionState(
   val connectionState: String,

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/ChatItemInfoView.kt

@@ -324,7 +324,7 @@ fun ChatItemInfoView(chatModel: ChatModel, ci: ChatItem, ciInfo: ChatItemInfo, d
           .fillMaxHeight(),
         verticalArrangement = Arrangement.SpaceBetween
       ) {
-        LaunchedEffect(Unit) {
+        LaunchedEffect(ciInfo) {
           if (ciInfo.memberDeliveryStatuses != null) {
             selection.value = CIInfoTab.Delivery(ciInfo.memberDeliveryStatuses)
           }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/ChatView.kt

@@ -67,13 +67,13 @@ fun ChatView(chatId: String, chatModel: ChatModel, onComposed: suspend (chatId:
     launch {
       snapshotFlow { chatModel.chatId.value }
         .distinctUntilChanged()
-        .onEach { Log.d(TAG, "TODOCHAT: chatId: activeChatId ${activeChat.value?.id} == new chatId $it ${activeChat.value?.id == it} ") }
-        .filter { it != null && activeChat.value?.id != it }
+        .filterNotNull()
         .collect { chatId ->
-          // Redisplay the whole hierarchy if the chat is different to make going from groups to direct chat working correctly
-          // Also for situation when chatId changes after clicking in notification, etc
-          activeChat.value = chatModel.getChat(chatId!!)
-          Log.d(TAG, "TODOCHAT: chatId: activeChatId became ${activeChat.value?.id}")
+          if (activeChat.value?.id != chatId) {
+            // Redisplay the whole hierarchy if the chat is different to make going from groups to direct chat working correctly
+            // Also for situation when chatId changes after clicking in notification, etc
+            activeChat.value = chatModel.getChat(chatId)
+          }
           markUnreadChatAsRead(activeChat, chatModel)
         }
     }
@@ -92,12 +92,10 @@ fun ChatView(chatId: String, chatModel: ChatModel, onComposed: suspend (chatId:
         }
       }
         .distinctUntilChanged()
-        .onEach { Log.d(TAG, "TODOCHAT: chats: activeChatId ${activeChat.value?.id} == new chatId ${it?.id} ${activeChat.value?.id == it?.id} ") }
         // Only changed chatInfo is important thing. Other properties can be skipped for reducing recompositions
-        .filter { it != null && it?.chatInfo != activeChat.value?.chatInfo }
+        .filter { it != null && it.chatInfo != activeChat.value?.chatInfo }
         .collect {
           activeChat.value = it
-          Log.d(TAG, "TODOCHAT: chats: activeChatId became ${activeChat.value?.id}")
         }
     }
   }
@@ -148,7 +146,6 @@ fun ChatView(chatId: String, chatModel: ChatModel, onComposed: suspend (chatId:
           },
           attachmentOption,
           attachmentBottomSheetState,
-          chatModel.chatItems,
           searchText,
           useLinkPreviews = useLinkPreviews,
           linkMode = chatModel.simplexLinkMode.value,
@@ -226,19 +223,17 @@ fun ChatView(chatId: String, chatModel: ChatModel, onComposed: suspend (chatId:
           loadPrevMessages = {
             if (chatModel.chatId.value != activeChat.value?.id) return@ChatLayout
             val c = chatModel.getChat(chatModel.chatId.value ?: return@ChatLayout)
-            val firstId = chatModel.chatItems.firstOrNull()?.id
+            val firstId = chatModel.chatItems.value.firstOrNull()?.id
             if (c != null && firstId != null) {
               withBGApi {
-                Log.d(TAG, "TODOCHAT: loadPrevMessages: loading for ${c.id}, current chatId ${ChatModel.chatId.value}, size was ${ChatModel.chatItems.size}")
                 apiLoadPrevMessages(c, chatModel, firstId, searchText.value)
-                Log.d(TAG, "TODOCHAT: loadPrevMessages: loaded for ${c.id}, current chatId ${ChatModel.chatId.value}, size now ${ChatModel.chatItems.size}")
               }
             }
           },
           deleteMessage = { itemId, mode ->
             withBGApi {
               val cInfo = chat.chatInfo
-              val toDeleteItem = chatModel.chatItems.firstOrNull { it.id == itemId }
+              val toDeleteItem = chatModel.chatItems.value.firstOrNull { it.id == itemId }
               val toModerate = toDeleteItem?.memberToModerate(chat.chatInfo)
               val groupInfo = toModerate?.first
               val groupMember = toModerate?.second
@@ -306,7 +301,9 @@ fun ChatView(chatId: String, chatModel: ChatModel, onComposed: suspend (chatId:
             withBGApi {
               val cInfo = chat.chatInfo
               if (cInfo is ChatInfo.Direct) {
-                chatModel.activeCall.value = Call(remoteHostId = chatRh, contact = cInfo.contact, callState = CallState.WaitCapabilities, localMedia = media)
+                val contactInfo = chatModel.controller.apiContactInfo(chat.remoteHostId, cInfo.contact.contactId)
+                val profile = contactInfo?.second ?: chatModel.currentUser.value?.profile?.toProfile() ?: return@withBGApi
+                chatModel.activeCall.value = Call(remoteHostId = chatRh, contact = cInfo.contact, callState = CallState.WaitCapabilities, localMedia = media, userProfile = profile)
                 chatModel.showCallView.value = true
                 chatModel.callCommand.add(WCallCommand.Capabilities(media))
               }
@@ -404,12 +401,15 @@ fun ChatView(chatId: String, chatModel: ChatModel, onComposed: suspend (chatId:
                   setGroupMembers(chatRh, chat.chatInfo.groupInfo, chatModel)
                 }
                 ModalManager.end.closeModals()
-                ModalManager.end.showModal(endButtons = {
+                ModalManager.end.showModalCloseable(endButtons = {
                   ShareButton {
                     clipboard.shareText(itemInfoShareText(chatModel, cItem, ciInfo, chatModel.controller.appPrefs.developerTools.get()))
                   }
-                }) {
+                }) { close ->
                   ChatItemInfoView(chatModel, cItem, ciInfo, devTools = chatModel.controller.appPrefs.developerTools.get())
+                  KeyChangeEffect(chatModel.chatId.value) {
+                    close()
+                  }
                 }
               }
             }
@@ -495,7 +495,6 @@ fun ChatLayout(
   composeView: (@Composable () -> Unit),
   attachmentOption: MutableState<AttachmentOption?>,
   attachmentBottomSheetState: ModalBottomSheetState,
-  chatItems: List<ChatItem>,
   searchValue: State<String>,
   useLinkPreviews: Boolean,
   linkMode: SimplexLinkMode,
@@ -582,7 +581,7 @@ fun ChatLayout(
             .padding(contentPadding)
           ) {
             ChatItemsList(
-              chat, unreadCount, composeState, chatItems, searchValue,
+              chat, unreadCount, composeState, searchValue,
               useLinkPreviews, linkMode, showMemberInfo, loadPrevMessages, deleteMessage, deleteMessages,
               receiveFile, cancelFile, joinGroup, acceptCall, acceptFeature, openDirectChat,
               updateContactStats, updateMemberStats, syncContactConnection, syncMemberConnection, findModelChat, findModelMember,
@@ -647,7 +646,7 @@ fun ChatInfoToolbar(
     }
   }
 
-  if (chat.chatInfo is ChatInfo.Direct && chat.chatInfo.contact.allowsFeature(ChatFeature.Calls)) {
+  if (chat.chatInfo is ChatInfo.Direct && chat.chatInfo.contact.mergedPreferences.calls.enabled.forUser) {
     if (activeCall == null) {
       barButtons.add {
         if (appPlatform.isAndroid) {
@@ -676,7 +675,7 @@ fun ChatInfoToolbar(
           }
         }
       }
-    } else if (activeCall?.contact?.id == chat.id) {
+    } else if (activeCall?.contact?.id == chat.id && appPlatform.isDesktop) {
       barButtons.add {
         val call = remember { chatModel.activeCall }.value
         val connectedAt = call?.connectedAt
@@ -840,7 +839,6 @@ fun BoxWithConstraintsScope.ChatItemsList(
   chat: Chat,
   unreadCount: State<Int>,
   composeState: MutableState<ComposeState>,
-  chatItems: List<ChatItem>,
   searchValue: State<String>,
   useLinkPreviews: Boolean,
   linkMode: SimplexLinkMode,
@@ -869,7 +867,7 @@ fun BoxWithConstraintsScope.ChatItemsList(
 ) {
   val listState = rememberLazyListState()
   val scope = rememberCoroutineScope()
-  ScrollToBottom(chat.id, listState, chatItems)
+  ScrollToBottom(chat.id, listState, chatModel.chatItems)
   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()) {
@@ -886,7 +884,7 @@ fun BoxWithConstraintsScope.ChatItemsList(
   PreloadItems(listState, ChatPagination.UNTIL_PRELOAD_COUNT, loadPrevMessages)
 
   Spacer(Modifier.size(8.dp))
-  val reversedChatItems by remember { derivedStateOf { chatItems.reversed().toList() } }
+  val reversedChatItems by remember { derivedStateOf { chatModel.chatItems.asReversed() } }
   val maxHeightRounded = with(LocalDensity.current) { maxHeight.roundToPx() }
   val scrollToItem: (Long) -> Unit = { itemId: Long ->
     val index = reversedChatItems.indexOfFirst { it.id == itemId }
@@ -939,7 +937,7 @@ fun BoxWithConstraintsScope.ChatItemsList(
           }
         }
         val provider = {
-          providerForGallery(i, chatItems, cItem.id) { indexInReversed ->
+          providerForGallery(i, chatModel.chatItems.value, cItem.id) { indexInReversed ->
             scope.launch {
               listState.scrollToItem(
                 kotlin.math.min(reversedChatItems.lastIndex, indexInReversed + 1),
@@ -1062,11 +1060,11 @@ fun BoxWithConstraintsScope.ChatItemsList(
       }
     }
   }
-  FloatingButtons(chatItems, unreadCount, chat.chatStats.minUnreadItemId, searchValue, markRead, setFloatingButton, listState)
+  FloatingButtons(chatModel.chatItems, unreadCount, chat.chatStats.minUnreadItemId, searchValue, markRead, setFloatingButton, listState)
 }
 
 @Composable
-private fun ScrollToBottom(chatId: ChatId, listState: LazyListState, chatItems: List<ChatItem>) {
+private fun ScrollToBottom(chatId: ChatId, listState: LazyListState, chatItems: State<List<ChatItem>>) {
   val scope = rememberCoroutineScope()
   // Helps to scroll to bottom after moving from Group to Direct chat
   // and prevents scrolling to bottom on orientation change
@@ -1084,7 +1082,7 @@ private fun ScrollToBottom(chatId: ChatId, listState: LazyListState, chatItems:
   * When the first visible item (from bottom) is visible (even partially) we can autoscroll to 0 item. Or just scrollBy small distance otherwise
   * */
   LaunchedEffect(Unit) {
-    snapshotFlow { chatItems.lastOrNull()?.id }
+    snapshotFlow { chatItems.value.lastOrNull()?.id }
       .distinctUntilChanged()
       .filter { listState.layoutInfo.visibleItemsInfo.firstOrNull()?.key != it }
       .collect {
@@ -1107,7 +1105,7 @@ private fun ScrollToBottom(chatId: ChatId, listState: LazyListState, chatItems:
 
 @Composable
 fun BoxWithConstraintsScope.FloatingButtons(
-  chatItems: List<ChatItem>,
+  chatItems: State<List<ChatItem>>,
   unreadCount: State<Int>,
   minUnreadItemId: Long,
   searchValue: State<String>,
@@ -1141,10 +1139,11 @@ fun BoxWithConstraintsScope.FloatingButtons(
   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
+      val items = chatItems.value
+      val from = items.lastIndex - firstVisibleIndex - lastIndexOfVisibleItems
+      if (items.size <= from || from < 0) return@derivedStateOf 0
 
-      chatItems.subList(from, chatItems.size).count { it.isRcvNew }
+      items.subList(from, items.size).count { it.isRcvNew }
     }
   }
   val firstVisibleOffset = (-with(LocalDensity.current) { maxHeight.roundToPx() } * 0.8).toInt()
@@ -1190,7 +1189,7 @@ fun BoxWithConstraintsScope.FloatingButtons(
         painterResource(MR.images.ic_check),
         onClick = {
           markRead(
-            CC.ItemRange(minUnreadItemId, chatItems[chatItems.size - listState.layoutInfo.visibleItemsInfo.lastIndex - 1].id - 1),
+            CC.ItemRange(minUnreadItemId, chatItems.value[chatItems.size - listState.layoutInfo.visibleItemsInfo.lastIndex - 1].id - 1),
             bottomUnreadCount
           )
           showDropDown.value = false
@@ -1495,7 +1494,6 @@ fun PreviewChatLayout() {
       composeView = {},
       attachmentOption = remember { mutableStateOf<AttachmentOption?>(null) },
       attachmentBottomSheetState = rememberModalBottomSheetState(initialValue = ModalBottomSheetValue.Hidden),
-      chatItems = chatItems,
       searchValue,
       useLinkPreviews = true,
       linkMode = SimplexLinkMode.DESCRIPTION,
@@ -1568,7 +1566,6 @@ fun PreviewGroupChatLayout() {
       composeView = {},
       attachmentOption = remember { mutableStateOf<AttachmentOption?>(null) },
       attachmentBottomSheetState = rememberModalBottomSheetState(initialValue = ModalBottomSheetValue.Hidden),
-      chatItems = chatItems,
       searchValue,
       useLinkPreviews = true,
       linkMode = SimplexLinkMode.DESCRIPTION,

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/ComposeView.kt

@@ -267,7 +267,7 @@ fun ComposeView(
   fun loadLinkPreview(url: String, wait: Long? = null) {
     if (pendingLinkUrl.value == url) {
       composeState.value = composeState.value.copy(preview = ComposePreview.CLinkPreview(null))
-      withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+      withLongRunningApi(slow = 60_000) {
         if (wait != null) delay(wait)
         val lp = getLinkPreview(url)
         if (lp != null && pendingLinkUrl.value == url) {
@@ -551,7 +551,7 @@ fun ComposeView(
   }
 
   fun sendMessage(ttl: Int?) {
-    withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+    withLongRunningApi(slow = 120_000) {
       sendMessageAsync(null, false, ttl)
     }
   }
@@ -583,6 +583,10 @@ fun ComposeView(
   }
 
   fun cancelLinkPreview() {
+    val pendingLink = pendingLinkUrl.value
+    if (pendingLink != null) {
+      cancelledLinks.add(pendingLink)
+    }
     val uri = composeState.value.linkPreview?.uri
     if (uri != null) {
       cancelledLinks.add(uri)
@@ -661,7 +665,7 @@ fun ComposeView(
 
   fun editPrevMessage() {
     if (composeState.value.contextItem != ComposeContextItem.NoContextItem || composeState.value.preview != ComposePreview.NoPreview) return
-    val lastEditable = chatModel.chatItems.findLast { it.meta.editable }
+    val lastEditable = chatModel.chatItems.value.findLast { it.meta.editable }
     if (lastEditable != null) {
       composeState.value = ComposeState(editingItem = lastEditable, useLinkPreviews = useLinkPreviews)
     }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/SendMsgView.kt

@@ -59,14 +59,6 @@ fun SendMsgView(
 ) {
   val showCustomDisappearingMessageDialog = remember { mutableStateOf(false) }
 
-  if (showCustomDisappearingMessageDialog.value) {
-    CustomDisappearingMessageDialog(
-      sendMessage = sendMessage,
-      setShowDialog = { showCustomDisappearingMessageDialog.value = it },
-      customDisappearingMessageTimePref = customDisappearingMessageTimePref
-    )
-  }
-
   Box(Modifier.padding(vertical = 8.dp)) {
     val cs = composeState.value
     var progressByTimeout by rememberSaveable { mutableStateOf(false) }
@@ -203,6 +195,11 @@ fun SendMsgView(
             DefaultDropdownMenu(showDropdown) {
               menuItems.forEach { composable -> composable() }
             }
+            CustomDisappearingMessageDialog(
+              showCustomDisappearingMessageDialog,
+              sendMessage = sendMessage,
+              customDisappearingMessageTimePref = customDisappearingMessageTimePref
+            )
           } else {
             SendMsgButton(icon, sendButtonSize, sendButtonAlpha, sendButtonColor, !sendMsgButtonDisabled, sendMessage)
           }
@@ -220,93 +217,43 @@ expect fun VoiceButtonWithoutPermissionByPlatform()
 
 @Composable
 private fun CustomDisappearingMessageDialog(
+  showMenu: MutableState<Boolean>,
   sendMessage: (Int?) -> Unit,
-  setShowDialog: (Boolean) -> Unit,
   customDisappearingMessageTimePref: SharedPreference<Int>?
 ) {
-  val showCustomTimePicker = remember { mutableStateOf(false) }
-
-  if (showCustomTimePicker.value) {
-    val selectedDisappearingMessageTime = remember {
-      mutableStateOf(customDisappearingMessageTimePref?.get?.invoke() ?: 300)
-    }
-    CustomTimePickerDialog(
-      selectedDisappearingMessageTime,
-      title = generalGetString(MR.strings.delete_after),
-      confirmButtonText = generalGetString(MR.strings.send_disappearing_message_send),
-      confirmButtonAction = { ttl ->
-        sendMessage(ttl)
-        customDisappearingMessageTimePref?.set?.invoke(ttl)
-        setShowDialog(false)
-      },
-      cancel = { setShowDialog(false) }
+  DefaultDropdownMenu(showMenu) {
+    Text(
+      generalGetString(MR.strings.send_disappearing_message),
+      Modifier.padding(vertical = DEFAULT_PADDING_HALF, horizontal = DEFAULT_PADDING * 1.5f),
+      fontSize = 16.sp,
+      color = MaterialTheme.colors.secondary
     )
-  } else {
-    @Composable
-    fun ChoiceButton(
-      text: String,
-      onClick: () -> Unit
-    ) {
-      TextButton(onClick) {
-        Text(
-          text,
-          fontSize = 18.sp,
-          color = MaterialTheme.colors.primary
-        )
-      }
-    }
 
-    DefaultDialog(onDismissRequest = { setShowDialog(false) }) {
-      Surface(
-        shape = RoundedCornerShape(corner = CornerSize(25.dp)),
-        contentColor = LocalContentColor.current
-      ) {
-        Box(
-          contentAlignment = Alignment.Center
-        ) {
-          Column(
-            modifier = Modifier.padding(DEFAULT_PADDING),
-            verticalArrangement = Arrangement.spacedBy(6.dp),
-            horizontalAlignment = Alignment.CenterHorizontally
-          ) {
-            Row(
-              modifier = Modifier.fillMaxWidth(),
-              horizontalArrangement = Arrangement.SpaceBetween,
-              verticalAlignment = Alignment.CenterVertically
-            ) {
-              Text(" ") // centers title
-              Text(
-                generalGetString(MR.strings.send_disappearing_message),
-                fontSize = 16.sp,
-                color = MaterialTheme.colors.secondary
-              )
-              Icon(
-                painterResource(MR.images.ic_close),
-                generalGetString(MR.strings.icon_descr_close_button),
-                tint = MaterialTheme.colors.secondary,
-                modifier = Modifier
-                  .size(25.dp)
-                  .clickable { setShowDialog(false) }
-              )
-            }
-            ChoiceButton(generalGetString(MR.strings.send_disappearing_message_30_seconds)) {
-              sendMessage(30)
-              setShowDialog(false)
-            }
-            ChoiceButton(generalGetString(MR.strings.send_disappearing_message_1_minute)) {
-              sendMessage(60)
-              setShowDialog(false)
-            }
-            ChoiceButton(generalGetString(MR.strings.send_disappearing_message_5_minutes)) {
-              sendMessage(300)
-              setShowDialog(false)
-            }
-            ChoiceButton(generalGetString(MR.strings.send_disappearing_message_custom_time)) {
-              showCustomTimePicker.value = true
-            }
-          }
-        }
-      }
+    ItemAction(generalGetString(MR.strings.send_disappearing_message_30_seconds)) {
+      sendMessage(30)
+      showMenu.value = false
+    }
+    ItemAction(generalGetString(MR.strings.send_disappearing_message_1_minute)) {
+      sendMessage(60)
+      showMenu.value = false
+    }
+    ItemAction(generalGetString(MR.strings.send_disappearing_message_5_minutes)) {
+      sendMessage(300)
+      showMenu.value = false
+    }
+    ItemAction(generalGetString(MR.strings.send_disappearing_message_custom_time)) {
+      showMenu.value = false
+      val selectedDisappearingMessageTime = mutableStateOf(customDisappearingMessageTimePref?.get?.invoke() ?: 300)
+      showCustomTimePickerDialog(
+        selectedDisappearingMessageTime,
+        title = generalGetString(MR.strings.delete_after),
+        confirmButtonText = generalGetString(MR.strings.send_disappearing_message_send),
+        confirmButtonAction = { ttl ->
+          sendMessage(ttl)
+          customDisappearingMessageTimePref?.set?.invoke(ttl)
+        },
+        cancel = { showMenu.value = false }
+      )
     }
   }
 }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/AddGroupMembersView.kt

@@ -54,7 +54,7 @@ fun AddGroupMembersView(rhId: Long?, groupInfo: GroupInfo, creatingGroup: Boolea
     },
     inviteMembers = {
       allowModifyMembers = false
-      withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+      withLongRunningApi(slow = 120_000) {
         for (contactId in selectedContacts) {
           val member = chatModel.controller.apiAddMember(rhId, groupInfo.groupId, contactId, selectedRole.value)
           if (member != null) {
@@ -86,7 +86,7 @@ fun getContactsToAdd(chatModel: ChatModel, search: String): List<Contact> {
     .map { it.chatInfo }
     .filterIsInstance<ChatInfo.Direct>()
     .map { it.contact }
-    .filter { it.contactId !in memberContactIds && it.chatViewName.lowercase().contains(s) }
+    .filter { c -> c.ready && c.active && c.contactId !in memberContactIds && c.chatViewName.lowercase().contains(s) }
     .sortedBy { it.displayName.lowercase() }
     .toList()
 }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/GroupChatInfoView.kt

@@ -152,7 +152,7 @@ fun leaveGroupDialog(rhId: Long?, groupInfo: GroupInfo, chatModel: ChatModel, cl
     text = generalGetString(MR.strings.you_will_stop_receiving_messages_from_this_group_chat_history_will_be_preserved),
     confirmText = generalGetString(MR.strings.leave_group_button),
     onConfirm = {
-      withBGApi {
+      withLongRunningApi(60_000) {
         chatModel.controller.leaveGroup(rhId, groupInfo.groupId)
         close?.invoke()
       }
@@ -424,69 +424,47 @@ private fun MemberVerifiedShield() {
 
 @Composable
 private fun DropDownMenuForMember(rhId: Long?, member: GroupMember, groupInfo: GroupInfo, showMenu: MutableState<Boolean>) {
-  // revert from this:
-  DefaultDropdownMenu(showMenu) {
-    if (member.canBeRemoved(groupInfo)) {
-      ItemAction(stringResource(MR.strings.remove_member_button), painterResource(MR.images.ic_delete), color = MaterialTheme.colors.error, onClick = {
-        removeMemberAlert(rhId, groupInfo, member)
-        showMenu.value = false
-      })
+  if (groupInfo.membership.memberRole >= GroupMemberRole.Admin) {
+    val canBlockForAll = member.canBlockForAll(groupInfo)
+    val canRemove = member.canBeRemoved(groupInfo)
+    if (canBlockForAll || canRemove) {
+      DefaultDropdownMenu(showMenu) {
+        if (canBlockForAll) {
+          if (member.blockedByAdmin) {
+            ItemAction(stringResource(MR.strings.unblock_for_all), painterResource(MR.images.ic_do_not_touch), onClick = {
+              unblockForAllAlert(rhId, groupInfo, member)
+              showMenu.value = false
+            })
+          } else {
+            ItemAction(stringResource(MR.strings.block_for_all), painterResource(MR.images.ic_back_hand), color = MaterialTheme.colors.error, onClick = {
+              blockForAllAlert(rhId, groupInfo, member)
+              showMenu.value = false
+            })
+          }
+        }
+        if (canRemove) {
+          ItemAction(stringResource(MR.strings.remove_member_button), painterResource(MR.images.ic_delete), color = MaterialTheme.colors.error, onClick = {
+            removeMemberAlert(rhId, groupInfo, member)
+            showMenu.value = false
+          })
+        }
+      }
     }
-    if (member.memberSettings.showMessages) {
-      ItemAction(stringResource(MR.strings.block_member_button), painterResource(MR.images.ic_back_hand), color = MaterialTheme.colors.error, onClick = {
-        blockMemberAlert(rhId, groupInfo, member)
-        showMenu.value = false
-      })
-    } else {
-      ItemAction(stringResource(MR.strings.unblock_member_button), painterResource(MR.images.ic_do_not_touch), onClick = {
-        unblockMemberAlert(rhId, groupInfo, member)
-        showMenu.value = false
-      })
+  } else if (!member.blockedByAdmin) {
+    DefaultDropdownMenu(showMenu) {
+      if (member.memberSettings.showMessages) {
+        ItemAction(stringResource(MR.strings.block_member_button), painterResource(MR.images.ic_back_hand), color = MaterialTheme.colors.error, onClick = {
+          blockMemberAlert(rhId, groupInfo, member)
+          showMenu.value = false
+        })
+      } else {
+        ItemAction(stringResource(MR.strings.unblock_member_button), painterResource(MR.images.ic_do_not_touch), onClick = {
+          unblockMemberAlert(rhId, groupInfo, member)
+          showMenu.value = false
+        })
+      }
     }
   }
-  // revert to this: vvv
-//    if (groupInfo.membership.memberRole >= GroupMemberRole.Admin) {
-//      val canBlockForAll = member.canBlockForAll(groupInfo)
-//      val canRemove = member.canBeRemoved(groupInfo)
-//      if (canBlockForAll || canRemove) {
-//        DefaultDropdownMenu(showMenu) {
-//          if (canBlockForAll) {
-//            if (member.blockedByAdmin) {
-//              ItemAction(stringResource(MR.strings.unblock_for_all), painterResource(MR.images.ic_do_not_touch), onClick = {
-//                unblockForAllAlert(rhId, groupInfo, member)
-//                showMenu.value = false
-//              })
-//            } else {
-//              ItemAction(stringResource(MR.strings.block_for_all), painterResource(MR.images.ic_back_hand), color = MaterialTheme.colors.error, onClick = {
-//                blockForAllAlert(rhId, groupInfo, member)
-//                showMenu.value = false
-//              })
-//            }
-//          }
-//          if (canRemove) {
-//            ItemAction(stringResource(MR.strings.remove_member_button), painterResource(MR.images.ic_delete), color = MaterialTheme.colors.error, onClick = {
-//              removeMemberAlert(rhId, groupInfo, member)
-//              showMenu.value = false
-//            })
-//          }
-//        }
-//      }
-//    } else if (!member.blockedByAdmin) {
-//      DefaultDropdownMenu(showMenu) {
-//        if (member.memberSettings.showMessages) {
-//          ItemAction(stringResource(MR.strings.block_member_button), painterResource(MR.images.ic_back_hand), color = MaterialTheme.colors.error, onClick = {
-//            blockMemberAlert(rhId, groupInfo, member)
-//            showMenu.value = false
-//          })
-//        } else {
-//          ItemAction(stringResource(MR.strings.unblock_member_button), painterResource(MR.images.ic_do_not_touch), onClick = {
-//            unblockMemberAlert(rhId, groupInfo, member)
-//            showMenu.value = false
-//          })
-//        }
-//      }
-//    }
-  // ^^^
 }
 
 @Composable

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/GroupMemberInfoView.kt

@@ -3,11 +3,9 @@ package chat.simplex.common.views.chat.group
 import InfoRow
 import SectionBottomSpacer
 import SectionDividerSpaced
-import SectionItemView
 import SectionSpacer
 import SectionTextFooter
 import SectionView
-import TextIconSpaced
 import androidx.compose.desktop.ui.tooling.preview.Preview
 import java.net.URI
 import androidx.compose.foundation.*
@@ -74,9 +72,8 @@ fun GroupMemberInfoView(
             if (chatModel.getContactChat(it) == null) {
               chatModel.addChat(c)
             }
-            chatModel.chatItems.clear()
             chatModel.chatItemStatuses.clear()
-            chatModel.chatItems.addAll(c.chatItems)
+            chatModel.chatItems.replaceAll(c.chatItems)
             chatModel.chatId.value = c.id
             closeAll()
           }
@@ -390,25 +387,11 @@ fun GroupMemberInfoLayout(
       }
     }
 
-    // revert from this:
-    SectionDividerSpaced(maxBottomPadding = false)
-    SectionView {
-      if (member.memberSettings.showMessages) {
-        BlockMemberButton(blockMember)
-      } else {
-        UnblockMemberButton(unblockMember)
-      }
-      if (member.canBeRemoved(groupInfo)) {
-        RemoveMemberButton(removeMember)
-      }
+    if (groupInfo.membership.memberRole >= GroupMemberRole.Admin) {
+      AdminDestructiveSection()
+    } else {
+      NonAdminBlockSection()
     }
-    // revert to this: vvv
-//    if (groupInfo.membership.memberRole >= GroupMemberRole.Admin) {
-//      AdminDestructiveSection()
-//    } else {
-//      NonAdminBlockSection()
-//    }
-    // ^^^
 
     if (developerTools) {
       SectionDividerSpaced()

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/WelcomeMessageView.kt

@@ -3,6 +3,7 @@ package chat.simplex.common.views.chat.group
 import SectionBottomSpacer
 import SectionDividerSpaced
 import SectionItemView
+import SectionTextFooter
 import SectionView
 import TextIconSpaced
 import androidx.compose.foundation.layout.*
@@ -14,6 +15,7 @@ import androidx.compose.runtime.*
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalClipboardManager
 import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.text.AnnotatedString
@@ -27,9 +29,13 @@ import chat.simplex.common.views.chat.item.MarkdownText
 import chat.simplex.common.views.helpers.*
 import chat.simplex.common.model.ChatModel
 import chat.simplex.common.model.GroupInfo
+import chat.simplex.common.platform.chatJsonLength
+import chat.simplex.common.ui.theme.DEFAULT_PADDING_HALF
 import chat.simplex.res.MR
 import kotlinx.coroutines.delay
 
+private const val maxByteCount = 1200
+
 @Composable
 fun GroupWelcomeView(m: ChatModel, rhId: Long?, groupInfo: GroupInfo, close: () -> Unit) {
   var gInfo by remember { mutableStateOf(groupInfo) }
@@ -54,8 +60,11 @@ fun GroupWelcomeView(m: ChatModel, rhId: Long?, groupInfo: GroupInfo, close: ()
 
   ModalView(
     close = {
-      if (welcomeText.value == gInfo.groupProfile.description || (welcomeText.value == "" && gInfo.groupProfile.description == null)) close()
-      else showUnsavedChangesAlert({ save(close) }, close)
+      when {
+        welcomeTextUnchanged(welcomeText, gInfo) -> close()
+        !welcomeTextFitsLimit(welcomeText) -> showUnsavedChangesTooLongAlert(close)
+        else -> showUnsavedChangesAlert({ save(close) }, close)
+      }
     },
   ) {
     GroupWelcomeLayout(
@@ -67,6 +76,14 @@ fun GroupWelcomeView(m: ChatModel, rhId: Long?, groupInfo: GroupInfo, close: ()
   }
 }
 
+private fun welcomeTextUnchanged(welcomeText: MutableState<String>, groupInfo: GroupInfo): Boolean {
+  return welcomeText.value == groupInfo.groupProfile.description || (welcomeText.value == "" && groupInfo.groupProfile.description == null)
+}
+
+private fun welcomeTextFitsLimit(welcomeText: MutableState<String>): Boolean {
+  return chatJsonLength(welcomeText.value) <= maxByteCount
+}
+
 @Composable
 private fun GroupWelcomeLayout(
   welcomeText: MutableState<String>,
@@ -95,6 +112,13 @@ private fun GroupWelcomeLayout(
       } else {
         TextPreview(wt.value, linkMode)
       }
+      SectionTextFooter(
+        if (!welcomeTextFitsLimit(wt)) { generalGetString(MR.strings.message_too_large) } else "",
+        color = if (welcomeTextFitsLimit(wt)) MaterialTheme.colors.secondary else Color.Red
+      )
+
+      Spacer(Modifier.size(8.dp))
+
       ChangeModeButton(
         editMode.value,
         click = {
@@ -104,10 +128,18 @@ private fun GroupWelcomeLayout(
       )
       val clipboard = LocalClipboardManager.current
       CopyTextButton { clipboard.setText(AnnotatedString(wt.value)) }
-      SectionDividerSpaced(maxBottomPadding = false)
+
+      Divider(
+        Modifier.padding(
+          start = DEFAULT_PADDING_HALF,
+          top = 8.dp,
+          end = DEFAULT_PADDING_HALF,
+          bottom = 8.dp)
+      )
+
       SaveButton(
         save = save,
-        disabled = wt.value == groupInfo.groupProfile.description || (wt.value == "" && groupInfo.groupProfile.description == null)
+        disabled = welcomeTextUnchanged(wt, groupInfo) || !welcomeTextFitsLimit(wt)
       )
     } else {
       val clipboard = LocalClipboardManager.current
@@ -182,3 +214,11 @@ private fun showUnsavedChangesAlert(save: () -> Unit, revert: () -> Unit) {
     onDismiss = revert,
   )
 }
+
+private fun showUnsavedChangesTooLongAlert(revert: () -> Unit) {
+  AlertManager.shared.showAlertDialogStacked(
+    title = generalGetString(MR.strings.welcome_message_is_too_long),
+    confirmText = generalGetString(MR.strings.exit_without_saving),
+    onConfirm = revert,
+  )
+}

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/item/CIFileView.kt

@@ -94,7 +94,7 @@ fun CIFileView(
             FileProtocol.LOCAL -> {}
           }
         file.fileStatus is CIFileStatus.RcvComplete || (file.fileStatus is CIFileStatus.SndStored && file.fileProtocol == FileProtocol.LOCAL) -> {
-          withLongRunningApi(slow = 60_000, deadlock = 600_000) {
+          withLongRunningApi(slow = 600_000) {
             var filePath = getLoadedFilePath(file)
             if (chatModel.connectedToRemote() && filePath == null) {
               file.loadRemoteFile(true)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/item/CIVIdeoView.kt

@@ -41,7 +41,7 @@ fun CIVideoView(
     val filePath = remember(file, CIFile.cachedRemoteFileRequests.toList()) { mutableStateOf(getLoadedFilePath(file)) }
     if (chatModel.connectedToRemote()) {
       LaunchedEffect(file) {
-        withLongRunningApi(slow = 60_000, deadlock = 600_000) {
+        withLongRunningApi(slow = 600_000) {
           if (file != null && file.loaded && getLoadedFilePath(file) == null) {
             file.loadRemoteFile(false)
             filePath.value = getLoadedFilePath(file)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/item/ChatItemView.kt

@@ -103,7 +103,7 @@ fun ChatItemView(
               setReaction(cInfo, cItem, !r.userReacted, r.reaction)
             }
           }
-          Row(modifier.padding(2.dp)) {
+          Row(modifier.padding(2.dp), verticalAlignment = Alignment.CenterVertically) {
             ReactionIcon(r.reaction.text, fontSize = 12.sp)
             if (r.totalReacted > 1) {
               Spacer(Modifier.width(4.dp))
@@ -112,7 +112,6 @@ fun ChatItemView(
                 fontSize = 11.5.sp,
                 fontWeight = if (r.userReacted) FontWeight.Bold else FontWeight.Normal,
                 color = if (r.userReacted) MaterialTheme.colors.primary else MaterialTheme.colors.secondary,
-                modifier = if (appPlatform.isAndroid) Modifier else Modifier.padding(top = 4.dp)
               )
             }
           }
@@ -178,7 +177,8 @@ fun ChatItemView(
         fun MsgContentItemDropdownMenu() {
           val saveFileLauncher = rememberSaveFileLauncher(ciFile = cItem.file)
           when {
-            cItem.content.msgContent != null -> {
+            // cItem.id check is a special case for live message chat item which has negative ID while not sent yet
+            cItem.content.msgContent != null && cItem.id >= 0 -> {
               DefaultDropdownMenu(showMenu) {
                 if (cInfo.featureEnabled(ChatFeature.Reactions) && cItem.allowAddReaction) {
                   MsgReactionsMenu()
@@ -213,7 +213,7 @@ fun ChatItemView(
                       showMenu.value = false
                     }
                     if (chatModel.connectedToRemote() && fileSource == null) {
-                      withLongRunningApi(slow = 60_000, deadlock = 600_000) {
+                      withLongRunningApi(slow = 600_000) {
                         cItem.file?.loadRemoteFile(true)
                         fileSource = getLoadedFileSource(cItem.file)
                         shareIfExists()
@@ -527,8 +527,9 @@ fun DeleteItemAction(
           val range = chatViewItemsRange(currIndex, prevHidden)
           if (range != null) {
             val itemIds: ArrayList<Long> = arrayListOf()
+            val reversedChatItems = chatModel.chatItems.asReversed()
             for (i in range) {
-              itemIds.add(chatModel.chatItems.asReversed()[i].id)
+              itemIds.add(reversedChatItems[i].id)
             }
             deleteMessagesAlertDialog(itemIds, generalGetString(MR.strings.delete_message_mark_deleted_warning), deleteMessages = deleteMessages)
           } else {
@@ -651,6 +652,23 @@ fun ItemAction(text: String, icon: ImageVector, onClick: () -> Unit, color: Colo
   }
 }
 
+@Composable
+fun ItemAction(text: String, color: Color = Color.Unspecified, onClick: () -> Unit) {
+  val finalColor = if (color == Color.Unspecified) {
+    MenuTextColor
+  } else color
+  DropdownMenuItem(onClick, contentPadding = PaddingValues(horizontal = DEFAULT_PADDING * 1.5f)) {
+    Text(
+      text,
+      modifier = Modifier
+        .fillMaxWidth()
+        .weight(1F)
+        .padding(end = 15.dp),
+      color = finalColor
+    )
+  }
+}
+
 fun cancelFileAlertDialog(fileId: Long, cancelFile: (Long) -> Unit, cancelAction: CancelAction) {
   AlertManager.shared.showAlertDialog(
     title = generalGetString(cancelAction.alert.titleId),

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/item/MarkedDeletedItemView.kt

@@ -91,7 +91,7 @@ private fun MergedMarkedDeletedText(chatItem: ChatItem, revealed: MutableState<B
   )
 }
 
-private fun markedDeletedText(meta: CIMeta): String =
+fun markedDeletedText(meta: CIMeta): String =
   when (meta.itemDeleted) {
     is CIDeleted.Moderated ->
       String.format(generalGetString(MR.strings.moderated_item_description), meta.itemDeleted.byGroupMember.displayName)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chatlist/ChatListNavLinkView.kt

@@ -212,18 +212,15 @@ suspend fun openGroupChat(rhId: Long?, groupId: Long, chatModel: ChatModel) {
 }
 
 suspend fun openChat(rhId: Long?, chatInfo: ChatInfo, chatModel: ChatModel) {
-  Log.d(TAG, "TODOCHAT: openChat: opening ${chatInfo.id}, current chatId ${ChatModel.chatId.value}, size ${ChatModel.chatItems.size}")
   val chat = chatModel.controller.apiGetChat(rhId, chatInfo.chatType, chatInfo.apiId)
   if (chat != null) {
     openLoadedChat(chat, chatModel)
-    Log.d(TAG, "TODOCHAT: openChat: opened ${chatInfo.id}, current chatId ${ChatModel.chatId.value}, size ${ChatModel.chatItems.size}")
   }
 }
 
 fun openLoadedChat(chat: Chat, chatModel: ChatModel) {
-  chatModel.chatItems.clear()
   chatModel.chatItemStatuses.clear()
-  chatModel.chatItems.addAll(chat.chatItems)
+  chatModel.chatItems.replaceAll(chat.chatItems)
   chatModel.chatId.value = chat.chatInfo.id
 }
 
@@ -239,8 +236,7 @@ suspend fun apiFindMessages(ch: Chat, chatModel: ChatModel, search: String) {
   val chatInfo = ch.chatInfo
   val chat = chatModel.controller.apiGetChat(ch.remoteHostId, chatInfo.chatType, chatInfo.apiId, search = search) ?: return
   if (chatModel.chatId.value != chat.id) return
-  chatModel.chatItems.clear()
-  chatModel.chatItems.addAll(0, chat.chatItems)
+  chatModel.chatItems.replaceAll(chat.chatItems)
 }
 
 suspend fun setGroupMembers(rhId: Long?, groupInfo: GroupInfo, chatModel: ChatModel) {

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chatlist/ChatListView.kt

@@ -29,6 +29,7 @@ import chat.simplex.common.views.onboarding.WhatsNewView
 import chat.simplex.common.views.onboarding.shouldShowWhatsNew
 import chat.simplex.common.views.usersettings.SettingsView
 import chat.simplex.common.platform.*
+import chat.simplex.common.views.call.Call
 import chat.simplex.common.views.newchat.*
 import chat.simplex.res.MR
 import kotlinx.coroutines.*
@@ -121,7 +122,12 @@ fun ChatListView(chatModel: ChatModel, settingsState: SettingsViewState, setPerf
     }
   }
   if (searchText.value.text.isEmpty()) {
-    DesktopActiveCallOverlayLayout(newChatSheetState)
+    if (appPlatform.isDesktop) {
+      val call = remember { chatModel.activeCall }.value
+      if (call != null) {
+        ActiveCallInteractiveArea(call, newChatSheetState)
+      }
+    }
     // TODO disable this button and sheet for the duration of the switch
     tryOrShowError("NewChatSheet", error = {}) {
       NewChatSheet(chatModel, newChatSheetState, stopped, hideNewChatSheet)
@@ -314,7 +320,7 @@ private fun ToggleFilterDisabledButton() {
 }
 
 @Composable
-expect fun DesktopActiveCallOverlayLayout(newChatSheetState: MutableStateFlow<AnimatedViewState>)
+expect fun ActiveCallInteractiveArea(call: Call, newChatSheetState: MutableStateFlow<AnimatedViewState>)
 
 fun connectIfOpenedViaUri(rhId: Long?, uri: URI, chatModel: ChatModel) {
   Log.d(TAG, "connectIfOpenedViaUri: opened via link")

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chatlist/ChatPreviewView.kt

@@ -26,6 +26,7 @@ import chat.simplex.common.views.helpers.*
 import chat.simplex.common.model.*
 import chat.simplex.common.model.GroupInfo
 import chat.simplex.common.platform.chatModel
+import chat.simplex.common.views.chat.item.markedDeletedText
 import chat.simplex.res.MR
 import dev.icerock.moko.resources.ImageResource
 
@@ -170,7 +171,7 @@ fun ChatPreviewView(
         val (text: CharSequence, inlineTextContent) = when {
           chatModelDraftChatId == chat.id && chatModelDraft != null -> remember(chatModelDraft) { messageDraft(chatModelDraft) }
           ci.meta.itemDeleted == null -> ci.text to null
-          else -> generalGetString(MR.strings.marked_deleted_description) to null
+          else -> markedDeletedText(ci.meta) to null
         }
         val formattedText = when {
           chatModelDraftChatId == chat.id && chatModelDraft != null -> null
@@ -286,7 +287,7 @@ fun ChatPreviewView(
     Box(
       contentAlignment = Alignment.TopEnd
     ) {
-      val ts = chat.chatItems.lastOrNull()?.timestampText ?: getTimestampText(chat.chatInfo.updatedAt)
+      val ts = chat.chatItems.lastOrNull()?.timestampText ?: getTimestampText(chat.chatInfo.chatTs)
       Text(
         ts,
         color = MaterialTheme.colors.secondary,

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chatlist/ShareListView.kt

@@ -85,7 +85,7 @@ private fun ShareListToolbar(chatModel: ChatModel, userPickerState: MutableState
           userPickerState.value = AnimatedViewState.VISIBLE
         }
       }
-      else -> NavigationButtonBack { chatModel.sharedContent.value = null }
+      else -> NavigationButtonBack(onButtonClicked = { chatModel.sharedContent.value = null })
     }
   }
   if (chatModel.chats.size >= 8) {
@@ -143,7 +143,7 @@ private fun ShareList(chatModel: ChatModel, search: String) {
   }
   val chats by remember(search) {
     derivedStateOf {
-      if (search.isEmpty()) chatModel.chats.filter { it.chatInfo.ready } else chatModel.chats.filter { it.chatInfo.ready }.filter(filter)
+      if (search.isEmpty()) chatModel.chats.toList().filter { it.chatInfo.ready } else chatModel.chats.toList().filter { it.chatInfo.ready }.filter(filter)
     }
   }
   LazyColumn(

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/database/DatabaseEncryptionView.kt

@@ -62,7 +62,7 @@ fun DatabaseEncryptionView(m: ChatModel) {
       initialRandomDBPassphrase,
       progressIndicator,
       onConfirmEncrypt = {
-        withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+        withLongRunningApi {
           encryptDatabase(currentKey, newKey, confirmNewKey, initialRandomDBPassphrase, useKeychain, storedKey, progressIndicator)
         }
       }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/database/DatabaseView.kt

@@ -368,7 +368,7 @@ fun chatArchiveTitle(chatArchiveTime: Instant, chatLastStart: Instant): String {
 }
 
 fun startChat(m: ChatModel, chatLastStart: MutableState<Instant?>, chatDbChanged: MutableState<Boolean>, progressIndicator: MutableState<Boolean>? = null) {
-  withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+  withLongRunningApi {
     try {
       progressIndicator?.value = true
       if (chatDbChanged.value) {
@@ -581,7 +581,7 @@ private fun importArchive(
   progressIndicator.value = true
   val archivePath = saveArchiveFromURI(importedArchiveURI)
   if (archivePath != null) {
-    withLongRunningApi(slow = 60_000, deadlock = 180_000) {
+    withLongRunningApi {
       try {
         m.controller.apiDeleteStorage()
         try {

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/AlertManager.kt

@@ -12,6 +12,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.*
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalClipboardManager
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.style.TextAlign
@@ -22,6 +23,8 @@ import chat.simplex.common.ui.theme.*
 import chat.simplex.res.MR
 import dev.icerock.moko.resources.StringResource
 import dev.icerock.moko.resources.compose.painterResource
+import dev.icerock.moko.resources.compose.stringResource
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
 
 class AlertManager {
@@ -128,6 +131,8 @@ class AlertManager {
             ) {
               val focusRequester = remember { FocusRequester() }
               LaunchedEffect(Unit) {
+                // Wait before focusing to prevent auto-confirming if a user used Enter key on hardware keyboard
+                delay(200)
                 focusRequester.requestFocus()
               }
               TextButton(onClick = {
@@ -186,6 +191,7 @@ class AlertManager {
     title: String, text: String? = null,
     confirmText: String = generalGetString(MR.strings.ok),
     hostDevice: Pair<Long?, String>? = null,
+    shareText: Boolean? = null
   ) {
     showAlert {
       AlertDialog(
@@ -195,12 +201,23 @@ class AlertManager {
           AlertContent(text, hostDevice, extraPadding = true) {
             val focusRequester = remember { FocusRequester() }
             LaunchedEffect(Unit) {
+              // Wait before focusing to prevent auto-confirming if a user used Enter key on hardware keyboard
+              delay(200)
               focusRequester.requestFocus()
             }
+            // Can pass shareText = false to prevent showing Share button if it's needed in a specific case
+            val showShareButton = text != null && (shareText == true || (shareText == null && text.length > 500))
             Row(
               Modifier.fillMaxWidth().padding(horizontal = DEFAULT_PADDING),
-              horizontalArrangement = Arrangement.Center
+              horizontalArrangement = if (showShareButton) Arrangement.SpaceBetween else Arrangement.Center
             ) {
+              val clipboard = LocalClipboardManager.current
+              if (showShareButton && text != null) {
+                TextButton(onClick = {
+                  clipboard.shareText(text)
+                  hideAlert()
+                }) { Text(stringResource(MR.strings.share_verb)) }
+              }
               TextButton(
                 onClick = {
                   hideAlert()

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/CloseSheetBar.kt

@@ -18,7 +18,7 @@ import chat.simplex.res.MR
 import dev.icerock.moko.resources.compose.painterResource
 
 @Composable
-fun CloseSheetBar(close: (() -> Unit)?, showClose: Boolean = true, endButtons: @Composable RowScope.() -> Unit = {}) {
+fun CloseSheetBar(close: (() -> Unit)?, showClose: Boolean = true, tintColor: Color = if (close != null) MaterialTheme.colors.primary else MaterialTheme.colors.secondary, endButtons: @Composable RowScope.() -> Unit = {}) {
   Column(
     Modifier
       .fillMaxWidth()
@@ -35,7 +35,7 @@ fun CloseSheetBar(close: (() -> Unit)?, showClose: Boolean = true, endButtons: @
           verticalAlignment = Alignment.CenterVertically
         ) {
           if (showClose)  {
-            NavigationButtonBack(onButtonClicked = close)
+            NavigationButtonBack(tintColor = tintColor, onButtonClicked = close)
           } else {
             Spacer(Modifier)
           }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/CustomTimePicker.kt

@@ -1,116 +1,21 @@
 package chat.simplex.common.views.helpers
 
-import androidx.compose.foundation.clickable
+import SectionItemView
 import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.shape.CornerSize
-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 dev.icerock.moko.resources.compose.painterResource
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-import androidx.compose.ui.window.Dialog
-import chat.simplex.common.ui.theme.DEFAULT_PADDING
+import androidx.compose.ui.text.style.TextAlign
 import chat.simplex.common.model.CustomTimeUnit
 import chat.simplex.common.model.timeText
 import chat.simplex.res.MR
-import com.sd.lib.compose.wheel_picker.*
 
 @Composable
-fun CustomTimePicker(
+expect fun CustomTimePicker(
   selection: MutableState<Int>,
   timeUnitsLimits: List<TimeUnitLimits> = TimeUnitLimits.defaultUnitsLimits
-) {
-  fun getUnitValues(unit: CustomTimeUnit, selectedValue: Int): List<Int> {
-    val unitLimits = timeUnitsLimits.firstOrNull { it.timeUnit == unit } ?: TimeUnitLimits.defaultUnitLimits(unit)
-    val regularUnitValues = (unitLimits.minValue..unitLimits.maxValue).toList()
-    return regularUnitValues + if (regularUnitValues.contains(selectedValue)) emptyList() else listOf(selectedValue)
-  }
-
-  val (unit, duration) = CustomTimeUnit.toTimeUnit(selection.value)
-  val selectedUnit: MutableState<CustomTimeUnit> = remember { mutableStateOf(unit) }
-  val selectedDuration = remember { mutableStateOf(duration) }
-  val selectedUnitValues = remember { mutableStateOf(getUnitValues(selectedUnit.value, selectedDuration.value)) }
-  val isTriggered = remember { mutableStateOf(false) }
-
-  LaunchedEffect(selectedUnit.value) {
-    // on initial composition, if passed selection doesn't fit into picker bounds, so that selectedDuration is bigger than selectedUnit maxValue
-    // (e.g., for selection = 121 seconds: selectedUnit would be Second, selectedDuration would be 121 > selectedUnit maxValue of 120),
-    // selectedDuration would've been replaced by maxValue - isTriggered check prevents this by skipping LaunchedEffect on initial composition
-    if (isTriggered.value) {
-      val maxValue = timeUnitsLimits.firstOrNull { it.timeUnit == selectedUnit.value }?.maxValue
-      if (maxValue != null && selectedDuration.value > maxValue) {
-        selectedDuration.value = maxValue
-        selectedUnitValues.value = getUnitValues(selectedUnit.value, selectedDuration.value)
-      } else {
-        selectedUnitValues.value = getUnitValues(selectedUnit.value, selectedDuration.value)
-        selection.value = selectedUnit.value.toSeconds * selectedDuration.value
-      }
-    } else {
-      isTriggered.value = true
-    }
-  }
-
-  LaunchedEffect(selectedDuration.value) {
-    selection.value = selectedUnit.value.toSeconds * selectedDuration.value
-  }
-
-  Row(
-    Modifier
-      .fillMaxWidth()
-      .padding(horizontal = DEFAULT_PADDING),
-    horizontalArrangement = Arrangement.spacedBy(0.dp)
-  ) {
-    Column(Modifier.weight(1f)) {
-      val durationPickerState = rememberFWheelPickerState(selectedUnitValues.value.indexOf(selectedDuration.value))
-      FVerticalWheelPicker(
-        count = selectedUnitValues.value.count(),
-        state = durationPickerState,
-        unfocusedCount = 2,
-        focus = {
-          FWheelPickerFocusVertical(dividerColor = MaterialTheme.colors.primary)
-        }
-      ) { index ->
-        Text(
-          selectedUnitValues.value[index].toString(),
-          fontSize = 18.sp,
-          color = MaterialTheme.colors.primary
-        )
-      }
-      LaunchedEffect(durationPickerState) {
-        snapshotFlow { durationPickerState.currentIndex }
-          .collect {
-            selectedDuration.value = selectedUnitValues.value[it]
-          }
-      }
-    }
-    Column(Modifier.weight(1f)) {
-      val unitPickerState = rememberFWheelPickerState(timeUnitsLimits.indexOfFirst { it.timeUnit == selectedUnit.value })
-      FVerticalWheelPicker(
-        count = timeUnitsLimits.count(),
-        state = unitPickerState,
-        unfocusedCount = 2,
-        focus = {
-          FWheelPickerFocusVertical(dividerColor = MaterialTheme.colors.primary)
-        }
-      ) { index ->
-        Text(
-          timeUnitsLimits[index].timeUnit.text,
-          fontSize = 18.sp,
-          color = MaterialTheme.colors.primary
-        )
-      }
-      LaunchedEffect(unitPickerState) {
-        snapshotFlow { unitPickerState.currentIndex }
-          .collect {
-            selectedUnit.value = timeUnitsLimits[it].timeUnit
-          }
-      }
-    }
-  }
-}
+)
 
 data class TimeUnitLimits(
   val timeUnit: CustomTimeUnit,
@@ -141,8 +46,7 @@ data class TimeUnitLimits(
   }
 }
 
-@Composable
-fun CustomTimePickerDialog(
+fun showCustomTimePickerDialog(
   selection: MutableState<Int>,
   timeUnitsLimits: List<TimeUnitLimits> = TimeUnitLimits.defaultUnitsLimits,
   title: String,
@@ -150,53 +54,26 @@ fun CustomTimePickerDialog(
   confirmButtonAction: (Int) -> Unit,
   cancel: () -> Unit
 ) {
-  DefaultDialog(onDismissRequest = cancel) {
-    Surface(
-      shape = RoundedCornerShape(corner = CornerSize(25.dp)),
-      contentColor = LocalContentColor.current
-    ) {
-      Box(
-        contentAlignment = Alignment.Center
+  AlertManager.shared.showAlertDialogButtonsColumn(
+    title = title,
+    onDismissRequest = cancel
+  ) {
+    Column(horizontalAlignment = Alignment.CenterHorizontally) {
+      CustomTimePicker(
+        selection,
+        timeUnitsLimits
+      )
+      SectionItemView({
+        AlertManager.shared.hideAlert()
+        confirmButtonAction(selection.value)
+      }
       ) {
-        Column(
-          modifier = Modifier.padding(DEFAULT_PADDING),
-          verticalArrangement = Arrangement.spacedBy(6.dp),
-          horizontalAlignment = Alignment.CenterHorizontally
-        ) {
-          Row(
-            modifier = Modifier.fillMaxWidth(),
-            horizontalArrangement = Arrangement.SpaceBetween,
-            verticalAlignment = Alignment.CenterVertically
-          ) {
-            Text(" ") // centers title
-            Text(
-              title,
-              fontSize = 16.sp,
-              color = MaterialTheme.colors.secondary
-            )
-            Icon(
-              painterResource(MR.images.ic_close),
-              generalGetString(MR.strings.icon_descr_close_button),
-              tint = MaterialTheme.colors.secondary,
-              modifier = Modifier
-                .size(25.dp)
-                .clickable { cancel() }
-            )
-          }
-
-          CustomTimePicker(
-            selection,
-            timeUnitsLimits
-          )
-
-          TextButton(onClick = { confirmButtonAction(selection.value) }) {
-            Text(
-              confirmButtonText,
-              fontSize = 18.sp,
-              color = MaterialTheme.colors.primary
-            )
-          }
-        }
+        Text(
+          confirmButtonText,
+          Modifier.fillMaxWidth(),
+          textAlign = TextAlign.Center,
+          color = MaterialTheme.colors.primary
+        )
       }
     }
   }
@@ -220,7 +97,6 @@ fun DropdownCustomTimePickerSettingRow(
 
   val dropdownSelection: MutableState<DropdownSelection> = remember { mutableStateOf(DropdownSelection.DropdownValue(selection.value)) }
   val values: MutableState<List<DropdownSelection>> = remember { mutableStateOf(getValues(selection.value)) }
-  val showCustomTimePicker = remember { mutableStateOf(false) }
 
   fun updateValue(selectedValue: Int?) {
     values.value = getValues(selectedValue)
@@ -247,28 +123,22 @@ fun DropdownCustomTimePickerSettingRow(
     onSelected = { sel: DropdownSelection ->
       when (sel) {
         is DropdownSelection.DropdownValue -> updateValue(sel.value)
-        DropdownSelection.Custom -> showCustomTimePicker.value = true
+        DropdownSelection.Custom -> {
+          val selectedCustomTime = mutableStateOf(selection.value ?: 86400)
+          showCustomTimePickerDialog(
+            selectedCustomTime,
+            timeUnitsLimits = customPickerTimeUnitsLimits,
+            title = customPickerTitle,
+            confirmButtonText = customPickerConfirmButtonText,
+            confirmButtonAction = ::updateValue,
+            cancel = {
+              dropdownSelection.value = DropdownSelection.DropdownValue(selection.value)
+            }
+          )
+        }
       }
     }
   )
-
-  if (showCustomTimePicker.value) {
-    val selectedCustomTime = remember { mutableStateOf(selection.value ?: 86400) }
-    CustomTimePickerDialog(
-      selectedCustomTime,
-      timeUnitsLimits = customPickerTimeUnitsLimits,
-      title = customPickerTitle,
-      confirmButtonText = customPickerConfirmButtonText,
-      confirmButtonAction = { time ->
-        updateValue(time)
-        showCustomTimePicker.value = false
-      },
-      cancel = {
-        dropdownSelection.value = DropdownSelection.DropdownValue(selection.value)
-        showCustomTimePicker.value = false
-      }
-    )
-  }
 }
 
 private sealed class DropdownSelection {

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/DefaultProgressBar.kt

@@ -5,6 +5,7 @@ import androidx.compose.material.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import chat.simplex.common.ui.theme.DEFAULT_PADDING
 
@@ -20,7 +21,7 @@ fun DefaultProgressView(description: String?) {
         strokeWidth = 2.5.dp
       )
       if (description != null) {
-        Text(description)
+        Text(description, textAlign = TextAlign.Center)
       }
     }
   }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/DefaultTopAppBar.kt

@@ -44,10 +44,10 @@ fun DefaultTopAppBar(
 }
 
 @Composable
-fun NavigationButtonBack(onButtonClicked: (() -> Unit)?) {
+fun NavigationButtonBack(onButtonClicked: (() -> Unit)?, tintColor: Color = if (onButtonClicked != null) MaterialTheme.colors.primary else MaterialTheme.colors.secondary) {
   IconButton(onButtonClicked ?: {}, enabled = onButtonClicked != null) {
     Icon(
-      painterResource(MR.images.ic_arrow_back_ios_new), stringResource(MR.strings.back), tint = if (onButtonClicked != null) MaterialTheme.colors.primary else MaterialTheme.colors.secondary
+      painterResource(MR.images.ic_arrow_back_ios_new), stringResource(MR.strings.back), tint = tintColor
     )
   }
 }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/ModalView.kt

@@ -29,7 +29,7 @@ fun ModalView(
   }
   Surface(Modifier.fillMaxSize(), contentColor = LocalContentColor.current) {
     Column(if (background != MaterialTheme.colors.background) Modifier.background(background) else Modifier.themedBackground()) {
-      CloseSheetBar(close, showClose, endButtons)
+      CloseSheetBar(close, showClose, endButtons = endButtons)
       Box(modifier) { content() }
     }
   }
@@ -61,10 +61,10 @@ class ModalManager(private val placement: ModalPlacement? = null) {
     }
   }
 
-  fun showModalCloseable(settings: Boolean = false, showClose: Boolean = true, content: @Composable ModalData.(close: () -> Unit) -> Unit) {
+  fun showModalCloseable(settings: Boolean = false, showClose: Boolean = true, endButtons: @Composable RowScope.() -> Unit = {}, content: @Composable ModalData.(close: () -> Unit) -> Unit) {
     val data = ModalData()
     showCustomModal { close ->
-      ModalView(close, showClose = showClose, content = { data.content(close) })
+      ModalView(close, showClose = showClose, endButtons = endButtons, content = { data.content(close) })
     }
   }
 

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/ProcessedErrors.kt

@@ -16,7 +16,7 @@ class ProcessedErrors <T: AgentErrorType>(val interval: Long) {
 
   fun newError(error: T, offerRestart: Boolean) {
     timer.cancel()
-    timer = withLongRunningApi(slow = 70_000, deadlock = 130_000) {
+    timer = withLongRunningApi(slow = 130_000) {
       val delayBeforeNext = (lastShownTimestamp + interval) - System.currentTimeMillis()
       if ((lastShownOfferRestart || !offerRestart) && delayBeforeNext >= 0) {
         delay(delayBeforeNext)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/Section.kt

@@ -198,16 +198,16 @@ fun <T> SectionItemWithValue(
 }
 
 @Composable
-fun SectionTextFooter(text: String) {
-  SectionTextFooter(AnnotatedString(text))
+fun SectionTextFooter(text: String, color: Color = MaterialTheme.colors.secondary) {
+  SectionTextFooter(AnnotatedString(text), color = color)
 }
 
 @Composable
-fun SectionTextFooter(text: AnnotatedString, textAlign: TextAlign = TextAlign.Start) {
+fun SectionTextFooter(text: AnnotatedString, textAlign: TextAlign = TextAlign.Start, color: Color = MaterialTheme.colors.secondary) {
   Text(
     text,
     Modifier.padding(start = DEFAULT_PADDING, end = DEFAULT_PADDING, top = DEFAULT_PADDING_HALF).fillMaxWidth(0.9F),
-    color = MaterialTheme.colors.secondary,
+    color = color,
     lineHeight = 18.sp,
     fontSize = 14.sp,
     textAlign = textAlign

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/helpers/Utils.kt

@@ -37,30 +37,22 @@ fun withBGApi(action: suspend CoroutineScope.() -> Unit): Job =
     CoroutineScope(singleThreadDispatcher).launch(block = { wrapWithLogging(action, it) })
   }
 
-fun withLongRunningApi(slow: Long = Long.MAX_VALUE, deadlock: Long = Long.MAX_VALUE, action: suspend CoroutineScope.() -> Unit): Job =
+fun withLongRunningApi(slow: Long = Long.MAX_VALUE, action: suspend CoroutineScope.() -> Unit): Job =
   Exception().let {
-    CoroutineScope(Dispatchers.Default).launch(block = { wrapWithLogging(action, it, slow = slow, deadlock = deadlock) })
+    CoroutineScope(Dispatchers.Default).launch(block = { wrapWithLogging(action, it, slow = slow) })
   }
 
-private suspend fun wrapWithLogging(action: suspend CoroutineScope.() -> Unit, exception: java.lang.Exception, slow: Long = 10_000, deadlock: Long = 60_000) = coroutineScope {
+private suspend fun wrapWithLogging(action: suspend CoroutineScope.() -> Unit, exception: java.lang.Exception, slow: Long = 20_000) = coroutineScope {
   val start = System.currentTimeMillis()
-  val job = launch {
-    delay(deadlock)
-    Log.e(TAG, "Possible deadlock of the thread, not finished after ${deadlock / 1000}s:\n${exception.stackTraceToString()}")
-    AlertManager.shared.showAlertMsg(
-      title = generalGetString(MR.strings.possible_deadlock_title),
-      text = generalGetString(MR.strings.possible_deadlock_desc).format(deadlock / 1000, exception.stackTraceToString()),
-    )
-  }
   action()
-  job.cancel()
-  if (appPreferences.developerTools.get() && appPreferences.showSlowApiCalls.get()) {
-    val end = System.currentTimeMillis()
-    if (end - start > slow) {
-      Log.e(TAG, "Possible problem with execution of the thread, took ${(end - start) / 1000}s:\n${exception.stackTraceToString()}")
+  val end = System.currentTimeMillis()
+  if (end - start > slow) {
+    Log.e(TAG, "Possible problem with execution of the thread, took ${(end - start) / 1000}s:\n${exception.stackTraceToString()}")
+    if (appPreferences.developerTools.get() && appPreferences.showSlowApiCalls.get()) {
       AlertManager.shared.showAlertMsg(
         title = generalGetString(MR.strings.possible_slow_function_title),
         text = generalGetString(MR.strings.possible_slow_function_desc).format((end - start) / 1000, exception.stackTraceToString()),
+        shareText = true
       )
     }
   }
@@ -419,7 +411,7 @@ expect fun ByteArray.toBase64StringForPassphrase(): String
 
 // Android's default implementation that was used before multiplatform, adds non-needed characters at the end of string
 // which can be bypassed by:
-// fun String.toByteArrayFromBase64(): ByteArray = Base64.getDecoder().decode(this.trimEnd { it == '\n' || it == ' ' })
+// fun String.toByteArrayFromBase64(): ByteArray = Base64.getMimeDecoder().decode(this.trimEnd { it == '\n' || it == ' ' })
 expect fun String.toByteArrayFromBase64ForPassphrase(): ByteArray
 
 val LongRange.Companion.saver

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/localauth/LocalAuthView.kt

@@ -49,7 +49,7 @@ fun LocalAuthView(m: ChatModel, authRequest: LocalAuthRequest) {
 }
 
 private fun deleteStorageAndRestart(m: ChatModel, password: String, completed: (LAResult) -> Unit) {
-  withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+  withLongRunningApi {
     try {
       /** Waiting until [initChatController] finishes */
       while (m.ctrlInitInProgress.value) {

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/onboarding/SetupDatabasePassphrase.kt

@@ -50,7 +50,7 @@ fun SetupDatabasePassphrase(m: ChatModel) {
     confirmNewKey,
     progressIndicator,
     onConfirmEncrypt = {
-      withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+      withLongRunningApi {
         if (m.chatRunning.value == true) {
           // Stop chat if it's started before doing anything
           stopChatAsync(m)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/usersettings/NetworkAndServers.kt

@@ -47,10 +47,6 @@ fun NetworkAndServersView(
   val onionHosts = remember { mutableStateOf(netCfg.onionHosts) }
   val sessionMode = remember { mutableStateOf(netCfg.sessionMode) }
 
-  LaunchedEffect(Unit) {
-    chatModel.userSMPServersUnsaved.value = null
-  }
-
   val proxyPort = remember { derivedStateOf { chatModel.controller.appPrefs.networkProxyHostPort.state.value?.split(":")?.lastOrNull()?.toIntOrNull() ?: 9050 } }
   NetworkAndServersLayout(
     currentRemoteHost = currentRemoteHost,

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/usersettings/PrivacySettings.kt

@@ -96,7 +96,7 @@ fun PrivacySettingsView(
     val currentUser = chatModel.currentUser.value
     if (currentUser != null) {
       fun setSendReceiptsContacts(enable: Boolean, clearOverrides: Boolean) {
-        withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+        withLongRunningApi(slow = 60_000) {
           val mrs = UserMsgReceiptSettings(enable, clearOverrides)
           chatModel.controller.apiSetUserContactReceipts(currentUser, mrs)
           chatModel.controller.appPrefs.privacyDeliveryReceiptsSet.set(true)
@@ -119,7 +119,7 @@ fun PrivacySettingsView(
       }
 
       fun setSendReceiptsGroups(enable: Boolean, clearOverrides: Boolean) {
-        withLongRunningApi(slow = 30_000, deadlock = 60_000) {
+        withLongRunningApi(slow = 60_000) {
           val mrs = UserMsgReceiptSettings(enable, clearOverrides)
           chatModel.controller.apiSetUserGroupReceipts(currentUser, mrs)
           chatModel.controller.appPrefs.privacyDeliveryReceiptsSet.set(true)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/usersettings/ProtocolServersView.kt

@@ -28,19 +28,18 @@ import chat.simplex.res.MR
 @Composable
 fun ModalData.ProtocolServersView(m: ChatModel, rhId: Long?, serverProtocol: ServerProtocol, close: () -> Unit) {
   var presetServers by remember(rhId) { mutableStateOf(emptyList<String>()) }
-  var servers by remember(rhId) {
-    mutableStateOf(m.userSMPServersUnsaved.value ?: emptyList())
-  }
+  var servers by remember { stateGetOrPut("servers") { emptyList<ServerCfg>() } }
+  var serversAlreadyLoaded by remember { stateGetOrPut("serversAlreadyLoaded") { false } }
   val currServers = remember(rhId) { mutableStateOf(servers) }
   val testing = rememberSaveable(rhId) { mutableStateOf(false) }
-  val serversUnchanged = remember { derivedStateOf { servers == currServers.value || testing.value } }
-  val allServersDisabled = remember { derivedStateOf { servers.all { !it.enabled } } }
-  val saveDisabled = remember {
+  val serversUnchanged = remember(servers) { derivedStateOf { servers == currServers.value || testing.value } }
+  val allServersDisabled = remember { derivedStateOf { servers.none { it.enabled } } }
+  val saveDisabled = remember(servers) {
     derivedStateOf {
       servers.isEmpty() ||
       servers == currServers.value ||
       testing.value ||
-      !servers.all { srv ->
+      servers.none { srv ->
         val address = parseServerAddress(srv.server)
         address != null && uniqueAddress(srv, address, servers)
       } ||
@@ -49,8 +48,8 @@ fun ModalData.ProtocolServersView(m: ChatModel, rhId: Long?, serverProtocol: Ser
   }
 
   KeyChangeEffect(rhId) {
-    m.userSMPServersUnsaved.value = null
     servers = emptyList()
+    serversAlreadyLoaded = false
   }
 
   LaunchedEffect(rhId) {
@@ -59,8 +58,9 @@ fun ModalData.ProtocolServersView(m: ChatModel, rhId: Long?, serverProtocol: Ser
       if (res != null) {
         currServers.value = res.protoServers
         presetServers = res.presetServers
-        if (servers.isEmpty()) {
+        if (servers.isEmpty() && !serversAlreadyLoaded) {
           servers = currServers.value
+          serversAlreadyLoaded = true
         }
       }
     }
@@ -80,13 +80,11 @@ fun ModalData.ProtocolServersView(m: ChatModel, rhId: Long?, serverProtocol: Ser
           newServers.add(index, updated)
           old = updated
           servers = newServers
-          m.userSMPServersUnsaved.value = servers
         },
         onDelete = {
           val newServers = ArrayList(servers)
           newServers.removeAt(index)
           servers = newServers
-          m.userSMPServersUnsaved.value = servers
           close()
         })
     }
@@ -125,7 +123,6 @@ fun ModalData.ProtocolServersView(m: ChatModel, rhId: Long?, serverProtocol: Ser
                     ScanProtocolServer(rhId) {
                       close()
                       servers = servers + it
-                      m.userSMPServersUnsaved.value = servers
                     }
                   }
                 }
@@ -150,13 +147,11 @@ fun ModalData.ProtocolServersView(m: ChatModel, rhId: Long?, serverProtocol: Ser
         testServersJob.value = withLongRunningApi {
           testServers(testing, servers, m) {
             servers = it
-            m.userSMPServersUnsaved.value = servers
           }
         }
       },
       resetServers = {
-        servers = currServers.value ?: emptyList()
-        m.userSMPServersUnsaved.value = null
+        servers = currServers.value
       },
       saveSMPServers = {
         saveServers(rhId, serverProtocol, currServers, servers, m)
@@ -355,7 +350,6 @@ private fun saveServers(rhId: Long?, protocol: ServerProtocol, currServers: Muta
   withBGApi {
     if (m.controller.setUserProtoServers(rhId, protocol, servers)) {
       currServers.value = servers
-      m.userSMPServersUnsaved.value = null
     }
     afterSave()
   }

apps/multiplatform/common/src/commonMain/resources/MR/ar/strings.xml

@@ -1588,8 +1588,6 @@
     <string name="remote_ctrl_error_busy">سطح المكتب مشغول</string>
     <string name="remote_ctrl_error_bad_version">يحتوي سطح المكتب على إصدار غير مدعوم. يُرجى التأكد من استخدام نفس الإصدار على كلا الجهازين</string>
     <string name="past_member_vName">العضو السابق %1$s</string>
-    <string name="possible_deadlock_title">مأزق</string>
-    <string name="possible_deadlock_desc">يستغرق تنفيذ التعليمات البرمجية وقتًا طويلاً جدًا: %1$d ثانية. من المحتمل أن التطبيق مجمّد: %2$s</string>
     <string name="possible_slow_function_title">وظيفة بطيئة</string>
     <string name="developer_options_section">خيارات المطور</string>
     <string name="profile_update_event_member_name_changed">تغيّر العضو %1$s إلى %2$s</string>

apps/multiplatform/common/src/commonMain/resources/MR/base/strings.xml

@@ -16,6 +16,7 @@
 
   <!-- MainActivity.kt -->
   <string name="opening_database">Opening database…</string>
+  <string name="database_migration_in_progress">Database migration is in progress.\nIt may take a few minutes.</string>
   <string name="non_content_uri_alert_title">Invalid file path</string>
   <string name="non_content_uri_alert_text">You shared an invalid file path. Report the issue to the app developers.</string>
   <string name="app_was_crashed">View crashed</string>
@@ -146,8 +147,6 @@
   <string name="smp_server_test_delete_file">Delete file</string>
   <string name="error_deleting_user">Error deleting user profile</string>
   <string name="error_updating_user_privacy">Error updating user privacy</string>
-  <string name="possible_deadlock_title">Deadlock</string>
-  <string name="possible_deadlock_desc">Execution of code takes too long time: %1$d seconds. Probably, the app is frozen: %2$s</string>
   <string name="possible_slow_function_title">Slow function</string>
   <string name="possible_slow_function_desc">Execution of function takes too long time: %1$d seconds: %2$s</string>
 
@@ -178,6 +177,9 @@
   <!-- SimpleX Chat foreground Service -->
   <string name="simplex_service_notification_title">SimpleX Chat service</string>
   <string name="simplex_service_notification_text">Receiving messages…</string>
+  <string name="call_service_notification_audio_call">Audio call</string>
+  <string name="call_service_notification_video_call">Video call</string>
+  <string name="call_service_notification_end_call">End call</string>
   <string name="hide_notification">Hide</string>
 
   <!-- Notification channels -->
@@ -802,6 +804,10 @@
   <string name="callstate_connected">connected</string>
   <string name="callstate_ended">ended</string>
 
+  <!-- CallView -->
+  <string name="unable_to_open_browser_title">Error opening browser</string>
+  <string name="unable_to_open_browser_desc">The default web browser is required for calls. Please configure the default browser in the system, and share more information with the developers.</string>
+
   <!-- SimpleXInfo -->
   <string name="next_generation_of_private_messaging">The next generation of private messaging</string>
   <string name="privacy_redefined">Privacy redefined</string>
@@ -1377,9 +1383,11 @@
   <!-- GroupWelcomeView.kt -->
   <string name="group_welcome_title">Welcome message</string>
   <string name="save_welcome_message_question">Save welcome message?</string>
+  <string name="welcome_message_is_too_long">Welcome message is too long</string>
   <string name="save_and_update_group_profile">Save and update group profile</string>
   <string name="group_welcome_preview">Preview</string>
   <string name="enter_welcome_message">Enter welcome message…</string>
+  <string name="message_too_large">Message too large</string>
 
   <!-- ConnectionStats -->
   <string name="conn_stats_section_title_servers">SERVERS</string>

apps/multiplatform/common/src/commonMain/resources/MR/bg/strings.xml

@@ -1555,7 +1555,6 @@
     <string name="chat_is_stopped_you_should_transfer_database">Чатът е спрян. Ако вече сте използвали тази база данни на друго устройство, трябва да я прехвърлите обратно, преди да стартирате чата отново.</string>
     <string name="remote_ctrl_error_bad_invitation">Настолното устройство има грешен код за връзка</string>
     <string name="remote_ctrl_error_bad_version">Настолното устройство е с неподдържана версия. Моля, уверете се, че използвате една и съща версия и на двете устройства</string>
-    <string name="possible_deadlock_desc">Изпълнението на кода отнема твърде много време: %1$d секунди. Вероятно приложението е замразено: %2$s</string>
     <string name="possible_slow_function_title">Бавна функция</string>
     <string name="possible_slow_function_desc">Изпълнението на функцията отнема твърде много време: %1$d секунди: %2$s</string>
     <string name="show_internal_errors">Покажи вътрешните грешки</string>
@@ -1591,5 +1590,4 @@
 \nПрепоръчително е да рестартирате приложението.</string>
     <string name="developer_options_section">Опции за разработчици</string>
     <string name="show_slow_api_calls">Показване на бавни API заявки</string>
-    <string name="possible_deadlock_title">Грешка в заключено положение</string>
 </resources>

apps/multiplatform/common/src/commonMain/resources/MR/de/strings.xml

@@ -1672,9 +1672,7 @@
     <string name="possible_slow_function_title">Langsame Funktion</string>
     <string name="show_slow_api_calls">Zeige langsame API-Aufrufe an</string>
     <string name="group_member_status_unknown_short">unbekannt</string>
-    <string name="possible_deadlock_title">Blockade</string>
     <string name="developer_options_section">Optionen für Entwickler</string>
-    <string name="possible_deadlock_desc">Die Code-Ausführung dauert zu lange: %1$d Sekunden. Wahrscheinlich ist die App eingefroren: %2$s</string>
     <string name="group_member_status_unknown">unbekannter Gruppenmitglieds-Status</string>
     <string name="v5_5_private_notes_descr">Mit verschlüsselten Dateien und Medien.</string>
     <string name="v5_5_private_notes">Private Notizen</string>

apps/multiplatform/common/src/commonMain/resources/MR/fr/strings.xml

@@ -1559,11 +1559,9 @@
     <string name="remote_host_error_bad_state"><![CDATA[État médiocre de la connexion au mobile <b>%s</b>.]]></string>
     <string name="remote_ctrl_was_disconnected_title">Connexion interrompue</string>
     <string name="remote_ctrl_error_bad_state">État médiocre de la connexion avec le bureau</string>
-    <string name="possible_deadlock_title">Impasse</string>
     <string name="remote_ctrl_error_bad_version">La version de l\'ordinateur de bureau n\'est pas prise en charge. Veillez à utiliser la même version sur les deux appareils.</string>
     <string name="remote_ctrl_error_disconnected">Le bureau a été déconnecté</string>
     <string name="developer_options_section">Options pour les développeurs</string>
-    <string name="possible_deadlock_desc">Le code prend trop de temps à s\'exécuter : %1$d secondes. Il est probable que l\'application soit figée : %2$s</string>
     <string name="agent_internal_error_title">Erreur interne</string>
     <string name="remote_host_error_bad_version"><![CDATA[La version du mobile <b>%s</b> n\'est pas prise en charge. Veillez à utiliser la même version sur les deux appareils.]]></string>
     <string name="show_internal_errors">Afficher les erreurs internes</string>

apps/multiplatform/common/src/commonMain/resources/MR/hu/strings.xml

@@ -1583,9 +1583,7 @@
     <string name="possible_slow_function_title">Lassú funkció</string>
     <string name="show_slow_api_calls">Lassú API-hívások megjelenítése</string>
     <string name="remote_host_error_inactive"><![CDATA[A(z) <b>%s</b> mobil eszköz inaktív]]></string>
-    <string name="possible_deadlock_title">Elakadt</string>
     <string name="developer_options_section">Fejlesztői beállítások</string>
-    <string name="possible_deadlock_desc">A kód végrehajtása túl sokáig tart: %1$d másodperc. Valószínűleg az alkalmazás lefagyott: %2$s</string>
     <string name="possible_slow_function_desc">A funkció végrehajtása túl sokáig tart: %1$d másodperc: %2$s</string>
     <string name="remote_host_error_busy"><![CDATA[A(z) <b>%s</b> mobil eszköz elfoglalt]]></string>
     <string name="past_member_vName">Legutóbbi tag %1$s</string>

apps/multiplatform/common/src/commonMain/resources/MR/it/strings.xml

@@ -1591,9 +1591,7 @@
     <string name="possible_slow_function_title">Funzione lenta</string>
     <string name="show_slow_api_calls">Mostra chiamate API lente</string>
     <string name="group_member_status_unknown_short">sconosciuto</string>
-    <string name="possible_deadlock_desc">L\'esecuzione del codice impiega troppo tempo: %1$d secondi. Probabilmente l\'app è congelata: %2$s</string>
     <string name="group_member_status_unknown">stato sconosciuto</string>
-    <string name="possible_deadlock_title">Stallo</string>
     <string name="developer_options_section">Opzioni sviluppatore</string>
     <string name="v5_5_private_notes">Note private</string>
     <string name="v5_5_new_interface_languages">Interfaccia in ungherese e turco</string>

apps/multiplatform/common/src/commonMain/resources/MR/ja/strings.xml

@@ -1571,9 +1571,7 @@
     <string name="remote_ctrl_error_busy">PC版が処理中</string>
     <string name="remote_ctrl_error_disconnected">PC版が切断されました</string>
     <string name="remote_ctrl_error_bad_version">ご利用のPC版のバージョンがサポートされてません。両端末が同じバージョンかどうか、ご確認ください。</string>
-    <string name="possible_deadlock_title">デッドロック状態</string>
     <string name="developer_options_section">開発者向けの設定</string>
-    <string name="possible_deadlock_desc">処理時間が異常にかかるようです: %1$d 秒。アプリが固まった恐れがあります: %2$s</string>
     <string name="remote_host_error_busy"><![CDATA[携帯版 <b>%s</b> がただいま処理中]]></string>
     <string name="possible_slow_function_desc">機能の処理時間が以上にかかってます: %1$d 秒: %2$s</string>
     <string name="show_internal_errors">内部エラーを表示</string>

apps/multiplatform/common/src/commonMain/resources/MR/nl/strings.xml

@@ -1574,7 +1574,6 @@
     <string name="remote_host_error_missing"><![CDATA[Mobiel <b>%s</b> ontbreekt]]></string>
     <string name="remote_host_error_bad_state"><![CDATA[De verbinding met de mobiel <b>%s</b> is in slechte staat]]></string>
     <string name="remote_ctrl_error_disconnected">De verbinding met desktop is verbroken</string>
-    <string name="possible_deadlock_title">Impasse</string>
     <string name="possible_slow_function_desc">Uitvoering van functie duurt te lang: %1$d seconden: %2$s</string>
     <string name="possible_slow_function_title">Langzame functie</string>
     <string name="developer_options_section">Ontwikkelaars opties</string>
@@ -1588,7 +1587,6 @@
     <string name="restart_chat_button">Chat opnieuw starten</string>
     <string name="remote_host_error_timeout"><![CDATA[Time-out bereikt tijdens het verbinden met de mobiel <b>%s</b>]]></string>
     <string name="remote_ctrl_error_bad_state">De verbinding met de desktop is in slechte staat</string>
-    <string name="possible_deadlock_desc">Het uitvoeren van de code duurt te lang: %1$d seconden. Waarschijnlijk is de app vastgelopen: %2$s</string>
     <string name="remote_ctrl_error_bad_invitation">Desktop heeft verkeerde uitnodigingscode</string>
     <string name="remote_host_error_bad_version"><![CDATA[Mobiel <b>%s</b> heeft een niet-ondersteunde versie. Zorg ervoor dat u op beide apparaten dezelfde versie gebruikt]]></string>
     <string name="remote_ctrl_error_timeout">Time-out bereikt tijdens het verbinden met de desktop</string>

apps/multiplatform/common/src/commonMain/resources/MR/pl/strings.xml

@@ -1606,7 +1606,6 @@
     <string name="remote_ctrl_error_bad_version">Komputer ma niewspieraną wersję. Proszę upewnić się, że używasz tych samych wersji na obu urządzeniach</string>
     <string name="blocked_by_admin_items_description">%d wiadomości zablokowanych przez admina</string>
     <string name="error_creating_message">Błąd tworzenia wiadomości</string>
-    <string name="possible_deadlock_desc">Wykonanie kodu zajmuje za dużo czasu: %1$d sekund. Prawdopodobnie aplikacja jest zamrożona: %2$s</string>
     <string name="possible_slow_function_desc">Wykonanie kodu zajmuje za dużo czasu: %1$d sekund: %2$s</string>
     <string name="note_folder_local_display_name">Prywatne notatki</string>
     <string name="group_member_status_unknown">nieznany status</string>
@@ -1621,7 +1620,6 @@
     <string name="remote_host_error_inactive"><![CDATA[Telefon <b>%s</b> jest nieaktywny]]></string>
     <string name="remote_host_error_bad_version"><![CDATA[Telefon <b>%s</b> ma niewspieraną wersję. Proszę, upewnij się, że używasz tej samej wersji na obydwu urządzeniach]]></string>
     <string name="group_member_status_unknown_short">nieznany</string>
-    <string name="possible_deadlock_title">Blokada</string>
     <string name="profile_update_event_contact_name_changed">kontakt %1$s zmieniony na %2$s</string>
     <string name="profile_update_event_removed_address">usunięto adres kontaktu</string>
     <string name="profile_update_event_removed_picture">usunięto zdjęcie profilu</string>

apps/multiplatform/common/src/commonMain/resources/MR/ru/strings.xml

@@ -1680,8 +1680,6 @@
     <string name="error_showing_message">ошибка отображения сообщения</string>
     <string name="error_showing_content">ошибка отображения содержания</string>
     <string name="remote_ctrl_disconnected_with_reason">Отсоединён по причине: %s</string>
-    <string name="possible_deadlock_title">Взаимная блокировка</string>
-    <string name="possible_deadlock_desc">Выполнение задачи занимает долгое время: %1$d секунд. Возможно, приложение заблокировано: %2$s</string>
     <string name="possible_slow_function_desc">Выполнение задачи занимает долгое время: %1$d секунд: %2$s</string>
     <string name="possible_slow_function_title">Медленный вызов</string>
     <string name="profile_update_event_contact_name_changed">контакт %1$s изменён на %2$s</string>

apps/multiplatform/common/src/commonMain/resources/MR/zh-rCN/strings.xml

@@ -1586,8 +1586,6 @@
     <string name="remote_host_error_bad_state"><![CDATA[到移动主机 <b>%s</b>的连接状态不佳]]></string>
     <string name="remote_host_error_timeout"><![CDATA[连接到移动主机<b>%s</b>时超时]]></string>
     <string name="failed_to_create_user_invalid_desc">显示名无效。请另选一个名称。</string>
-    <string name="possible_deadlock_title">死锁</string>
-    <string name="possible_deadlock_desc">代码执行花费的时间过久：%1$d秒。应用可能卡住了：%2$s</string>
     <string name="possible_slow_function_title">慢函数</string>
     <string name="show_slow_api_calls">显示缓慢的 API 调用</string>
     <string name="past_member_vName">过往成员 %1$s</string>