public Model.Playlist Next()
{
if (Playlists.Count() == 0)
{
return(null);
}
++CurrentPlaylist.CurrentIndex;
CurrentPlaylist.CurrentIndex %= CurrentPlaylist.Medias.Count();
return(CurrentPlaylist);
}
public async Task <Playlist> CreatePlaylistAsync(string name)
{
if (Playlists.Count(p => p.Name == name) > 0)
{
throw new ArgumentException(name);
}
var playlist = new Playlist {
Name = name
};
await _sqlService.InsertAsync(playlist);
Playlists.Insert(0, playlist);
return(playlist);
}
public Model.Playlist Prev()
{
if (Playlists.Count() == 0)
{
return(null);
}
if (CurrentPlaylist.CurrentIndex > 0)
{
--CurrentPlaylist.CurrentIndex;
}
else
{
CurrentPlaylist.CurrentIndex = CurrentPlaylist.Medias.Count() - 1;
}
return(CurrentPlaylist);
}
