const config = {
  /**
  * Set these configs below to suite your environment.
  */
  domain: process.env.DOMAIN || '', // Set to your own domain
  default_lang: process.env.DEFAULT_LANG || 'en', // Set your own language by default
  theme: process.env.THEME || 'dark', // Set to 'white' or 'dark' by default
  http_addr: process.env.HTTP_ADDR || '0.0.0.0', // don't touch, unless you know what your doing
  nonssl_port: process.env.NONSSL_PORT || 8080, // don't touch, unless you know what your doing
  
  /**
  * You can configure redis below if needed.
  * By default Wikiless uses 'redis://127.0.0.1:6379' as the Redis URL.
  * Versions before 0.1.1 Wikiless used redis_host and redis_port properties,
  * but they are not supported anymore.
  * process.env.REDIS_HOST is still here for backwards compatibility.
  */
  redis_url: process.env.REDIS_URL || process.env.REDIS_HOST || 'wikiless_redis',
  redis_password: process.env.REDIS_PASSWORD,
  
  /**
  * You might need to change these configs below if you host through a reverse
  * proxy like nginx.
  */
  trust_proxy: process.env.TRUST_PROXY === 'true' || true,
  trust_proxy_address: process.env.TRUST_PROXY_ADDRESS || '127.0.0.1',

  /**
  * Redis cache expiration values (in seconds).
  * When the cache expires, new content is fetched from Wikipedia (when the
  * given URL is revisited).
  */
  setexs: {
    wikipage: process.env.WIKIPAGE_CACHE_EXPIRATION || (60 * 60 * 1), // 1 hour
  },

  /**
  * Wikimedia requires a HTTP User-agent header for all Wikimedia related
  * requests. It's a good idea to change this to something unique.
  * Read more: https://meta.wikimedia.org/wiki/User-Agent_policy
  */
  wikimedia_useragent: process.env.wikimedia_useragent || 'Wikiless media proxy bot (https://github.com/Metastem/wikiless)',

  /**
  * Cache control. Wikiless can automatically remove the cached media files from
  * the server. Cache control is on by default.
  * 'cache_control_interval' sets the interval for often the cache directory
  * is emptied (in hours). Default is every 24 hours.
  */
  cache_control: process.env.CACHE_CONTROL !== 'true' || true,
  cache_control_interval: process.env.CACHE_CONTROL_INTERVAL || 24,
}

module.exports = config