public async Task <IEnumerable <FullTrack> > GetNextTracksAsync(PlaybackSessionInfo session, string finishedSongUri = null, int previewCount = 2)
{
// Call spotifyApi to get playlist from playlistId
// TODO this will have performance issues for larger playlists. Instead use the limit: and offset: params
List <PlaylistTrack> playlistTracks;
playlistTracks = (await _spotifyApi.GetPlaylistTracksAsync(null, session.SpotifyPlaylistId))
.Items;
// Get next track by finding the one after the finished song uri
var finishedIndex = playlistTracks.FindIndex(t => t.Track.Uri == finishedSongUri);
// Next song, or start back at 0
var nextIndex = finishedIndex >= playlistTracks.Count - 1 ? 0 : finishedIndex + 1;
// Take next track, plus preview tracks
var requiredCount = 1 + previewCount;
// Get the next song, and the previews
var nextTracks = playlistTracks.Skip(nextIndex).Take(requiredCount).ToList();
// If we are at the end of the playlist, get the previews from the start
if (nextTracks.Count() < requiredCount)
{
var take = requiredCount - nextTracks.Count();
nextTracks.AddRange(playlistTracks.Take(take));
}
return(nextTracks.Select(t => t.Track));
}
public async Task <IActionResult> GetCurrentPlayback(string voiceChannelId)
{
var session = await _playbackRepo.GetByDiscordIdAsync(voiceChannelId, new PlaybackSessionQueryOptions()
{
IncludeCurrentPlayback = true
});
if (session == null)
{
return(Ok(null));
}
var sessionInfo = new PlaybackSessionInfo()
{
SpotifyPlaylistId = session.SpotifyPlaylistId,
DiscordVoiceChannelId = session.DiscordVoiceChannelId
};
return(Ok(sessionInfo));
}
