jam-cloud/web/app/assets/javascripts/react-components/stores/MediaPlaybackStore.js.coffee

$ = jQuery
context = window
logger = context.JK.logger
PLAYBACK_MONITOR_MODE = context.JK.PLAYBACK_MONITOR_MODE
RecordingActions = @RecordingActions

@MediaPlaybackStore = Reflux.createStore(
  {
    listenables: @MediaPlaybackActions

    playbackStateChanged: false
    positionUpdateChanged: false
    currentTimeChanged: false
    playbackState: null
    positionMs: 0
    durationMs: 0
    isRecording: false
    sessionHelper: null


    init: () ->
      this.listenTo(context.SessionStore, this.onSessionChanged);

    onCurrentTimeChanged: (time) ->
      @time = time
      @currentTimeChanged = true
      @issueChange()

    onSessionChanged: (session) ->
      @isRecording = session.isRecording
      @sessionHelper = session

    # onMediaStartPlay: (data) ->
    #   logger.debug("calling jamClient.SessionStartPlay");
    #   context.jamClient.SessionStartPlay(data.playbackMode);

    onMediaStartPlay: `async function(data) {
        logger.debug("calling jamClient.SessionStartPlay ......");
        await context.jamClient.SessionStartPlay(data.playbackMode);
      }`

    # onMediaStopPlay: (data) ->
    #   # if a JamTrack is open, and the user hits 'pause' or 'stop', we need to automatically stop the recording
    #   if @sessionHelper.jamTracks() && @isRecording
    #     logger.debug("preemptive jamtrack stop")
    #     @startStopRecording();

    #   if !data.endReached
    #     logger.debug("calling jamClient.SessionStopPlay. endReached:", data.endReached)
    #     context.jamClient.SessionStopPlay()

    onMediaStopPlay: `async function(data) {
        // if a JamTrack is open, and the user hits 'pause' or 'stop', we need to automatically stop the recording
        if (this.sessionHelper.jamTracks() && this.isRecording) {
          logger.debug("preemptive jamtrack stop");
          this.startStopRecording();
        }

        if (!data.endReached) {
          logger.debug("calling jamClient.SessionStopPlay. endReached:", data.endReached);
          await context.jamClient.SessionStopPlay();
        }
      }`

    # onMediaPausePlay: (data) ->
    #   # if a JamTrack is open, and the user hits 'pause' or 'stop', we need to automatically stop the recording
    #   if @sessionHelper.jamTracks() && @isRecording
    #     logger.debug("preemptive jamtrack stop")
    #     @startStopRecording();


    #   if !data.endReached
    #     logger.debug("calling jamClient.SessionPausePlay. endReached:", data.endReached)
    #     context.jamClient.SessionPausePlay()

    onMediaPausePlay: `async function(data) {
        // if a JamTrack is open, and the user hits 'pause' or 'stop', we need to automatically stop the recording
        if (this.sessionHelper.jamTracks() && this.isRecording) {
          logger.debug("preemptive jamtrack stop");
          this.startStopRecording();
        }


        if (!data.endReached) {
          logger.debug("calling jamClient.SessionPausePlay. endReached:", data.endReached);
          await context.jamClient.SessionPausePlay();
        }
      }`

    startStopRecording: () ->
      if @isRecording
        RecordingActions.stopRecording.trigger()
      else
        RecordingActions.startRecording.trigger()

    # onMediaChangePosition: (data) ->
    #   seek = data.positionMs;

    #   if data.playbackMonitorMode == PLAYBACK_MONITOR_MODE.JAMTRACK
    #     # if positionMs == 0, then seek it back to whatever the earliest play start is to catch all the prelude

    #     if(seek == 0)
    #       duration = context.jamClient.SessionGetJamTracksPlayDurationMs();
    #       seek = duration.start;

    #   logger.debug("calling jamClient.SessionTrackSeekMs(" + seek + ")");

    #   if data.playbackMonitorMode == PLAYBACK_MONITOR_MODE.JAMTRACK
    #     context.jamClient.SessionJamTrackSeekMs(seek);
    #   else
    #     context.jamClient.SessionTrackSeekMs(seek);

    onMediaChangePosition: `async function(data) {
        let seek = data.positionMs;

        if (data.playbackMonitorMode === PLAYBACK_MONITOR_MODE.JAMTRACK) {
          // if positionMs == 0, then seek it back to whatever the earliest play start is to catch all the prelude

          if(seek === 0) {
            const duration = await context.jamClient.SessionGetJamTracksPlayDurationMs();
            seek = duration.start;
          }
        }

        logger.debug("calling jamClient.SessionTrackSeekMs(" + seek + ")");

        if (data.playbackMonitorMode === PLAYBACK_MONITOR_MODE.JAMTRACK) {
          await context.jamClient.SessionJamTrackSeekMs(seek);
        } else {
          await context.jamClient.SessionTrackSeekMs(seek);
        }
      }`


    issueChange: () ->

      @state =
        playbackState: @playbackState
        playbackStateChanged: @playbackStateChanged
        positionUpdateChanged: @positionUpdateChanged
        currentTimeChanged: @currentTimeChanged
        positionMs: @positionMs
        durationMs: @durationMs
        isPlaying: @isPlaying
        time: @time

      this.trigger(@state)
      @playbackStateChanged = false
      @positionUpdateChanged = false
      @currentTimeChanged = false

    onPlaybackStateChange: (text) ->
      @playbackState = text
      @playbackStateChanged = true

      @issueChange()

    # onPositionUpdate: (playbackMode) ->
    #   if playbackMode == PLAYBACK_MONITOR_MODE.JAMTRACK
    #     @positionMs = context.jamClient.SessionCurrrentJamTrackPlayPosMs()
    #     duration = context.jamClient.SessionGetJamTracksPlayDurationMs()
    #     @durationMs = duration.media_len
    #   else
    #     @positionMs = context.jamClient.SessionCurrrentPlayPosMs()
    #     @durationMs = context.jamClient.SessionGetTracksPlayDurationMs()

    #   @isPlaying = context.jamClient.isSessionTrackPlaying()

    #   @positionUpdateChanged = true
    #   @issueChange()

    onPositionUpdate: `async function(playbackMode) {
        if (playbackMode === PLAYBACK_MONITOR_MODE.JAMTRACK) {
          this.positionMs = await context.jamClient.SessionCurrrentJamTrackPlayPosMs();
          const duration = await context.jamClient.SessionGetJamTracksPlayDurationMs();
          this.durationMs = duration.media_len;
        } else {
          this.positionMs = await context.jamClient.SessionCurrrentPlayPosMs();
          this.durationMs = await context.jamClient.SessionGetTracksPlayDurationMs();
        }

        this.isPlaying = await context.jamClient.isSessionTrackPlaying();

        this.positionUpdateChanged = true;
        return this.issueChange();
      }`

  }
)