/**
 * We use this workaround to detect the Chromecast device generation.
 * Unfortunately the Cast Application Framework (CAF) does not have an API for that.
 *
 * cc-1: Chromecast 1st Gen.
 * cc-2: Chromecast 2nd Gen.
 * cc-3: Chromecast 3rd Gen.
 * cc-ultra: Chromecast Ultra
 * cc-builtin: Android TV with Chromecast built-in
 * cc-googletv: Google TV with Chromecast
 *
 */
const getModelInfo = () => {
    // https://developers.google.com/cast/docs/media#video_codecs
    try {
        const { hardwareConcurrency, userAgent } = window.navigator;
        const context = cast.framework.CastReceiverContext.getInstance();
        
        // Google TV with Chromecast supports 'H.264 High Profile, level 5.1'
      if (context.canDisplayType('video/mp4; codecs="avc1.640033')) { return 'cc-googletv'; }

      // Android TV with Chromecast built-in
      if (userAgent.includes('Android')) { return 'cc-builtin'; }

      // Chromecast Ultra supports 'HEVC main profile, level 3.1'
      if (MediaSource.isTypeSupported('video/mp4; codecs=hev1.1.6.L93.B0')) { return 'cc-ultra'; }

      // 3rd generation Chromecast supports 'H.264 high profile, level 4.2'
      if (MediaSource.isTypeSupported('video/mp4; codecs=avc1.64002A')) { return 'cc-3'; }

      // 2nd and 1st generation Chromecast can be differentiated by hardwareConcurrency
      if (hardwareConcurrency === 2) { return 'cc-2'; }
      if (hardwareConcurrency === 1) { return 'cc-1'; }
    } catch (e) {
        // do nothing
    }

    return 'cc-unknown';
};