public Tuple <Track, SessionContext> PullNextTrack()
{
if (CurrentManualQueue.HasItems)
{
return(new Tuple <Track, SessionContext>(CurrentManualQueue.Pull(), SessionContext.Queue));
}
else
{
return(new Tuple <Track, SessionContext>(CurrentBacklogQueue.Pull(), SessionContext.Backlog));
}
}
private async void RunInternal()
{
await Task.Run(async() =>
{
_playbackState = await DataLoader.GetInstance().GetCurrentlyPlaying(true, (int)SESSION_NEXT_SONG_BEVOR_END_MS - 50);
long lastUpadte = _unixTimestamp;
string lastDeviceId = null;
long tickStart = 0;
SessionStateChanged?.Invoke(this, EventArgs.Empty);
while (IsRunning)
{
tickStart = Environment.TickCount;
if (AMOUNT_ITEMS_LEFT_TO_REPOPULATED_BACKLOG >= CurrentBacklogQueue.Count())
{
await RepopulateBacklog();
}
if (_unixTimestamp >= lastUpadte + SESSION_UPDATE_SLEEP_PAUSE_MS || //update when "updatetimer" tiggers
_possibleMSLeftInTrack < SESSION_NEXT_SONG_BEVOR_END_MS) //update befor a PlayTrack to check whether playback is paused
{
await UpdateSession();
lastUpadte = _unixTimestamp;
}
//if (CurrentTrack == null || (_playbackState.Is_Playing && _possibleMSLeftInTrack < SESSION_NEXT_SONG_BEVOR_END_MS))
if (CurrentTrack == null || (_playbackState != null && CurrentTrack.Id == _playbackState.Item.Id && !_playbackState.Is_Playing && _playbackState.Progress_ms == 0))
{
Tuple <Track, SessionContext> nextTrackContext = PullNextTrack();
if (await PlayTrack(nextTrackContext))
{
Thread.Sleep(10);
await UpdateSession();
}
else
{
CurrentManualQueue.Push(nextTrackContext.Item1);
}
}
if (DeviceId != null && DeviceId != lastDeviceId)
{
await Controller.GetInstance().TransferPlayback(DeviceId, true);
}
lastDeviceId = DeviceId;
int sleepTime = (int)(SESSION_TICK_SLEEP_PAUSE_MS - (Environment.TickCount - tickStart));
if (sleepTime > 0)
{
Thread.Sleep(sleepTime);
}
}
});
}
