private Playlist(IEnumerable <ITrack> tracks, ITracksSource source)
{
var notYetPlayed = tracks.Where(track =>
{
var now = DateTime.UtcNow.AddHours(2);
return(track.Stop >= now);
});
foreach (var track in notYetPlayed)
{
_tracks.AddLast(track);
}
_tracksSource = source;
_current = _tracks.First;
}
public static async Task <Playlist> CreateFrom(ITracksSource source)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
var tracks = await source.GetAsync();
var tracksList = tracks.ToList();
if (!tracksList.Any())
{
throw new ApplicationException("Tracks source has not returned any tracks");
}
var playlist = new Playlist(tracksList, source);
return(playlist);
}
