/// <summary>
/// Get the PlaylistItems and associated songs for this playlist
/// </summary>
/// <param name="playlistItems"></param>
public void GetContents(IEnumerable <SongPlaylistItem> playlistItems)
{
// Get all the SongPlaylistItem entries associated with this SongPlaylist and then the Song entries for each of them
PlaylistItems.AddRange(playlistItems.Where(item => item.PlaylistId == Id));
foreach (SongPlaylistItem playlistItem in PlaylistItems)
{
playlistItem.Song = Songs.GetSongById(playlistItem.SongId);
playlistItem.Artist = Artists.GetArtistById(ArtistAlbums.GetArtistAlbumById(playlistItem.Song.ArtistAlbumId).ArtistId);
playlistItem.Song.Artist = playlistItem.Artist;
}
PlaylistItems.Sort((a, b) => a.Index.CompareTo(b.Index));
}
/// <summary>
/// Get the Playlists collection from storage
/// </summary>
/// <returns></returns>
public static async Task GetDataAsync()
{
if (PlaylistCollection == null)
{
PlaylistCollection = new List <Playlist>();
// Get the current set of SongPlaylists
List <SongPlaylist> songPlaylists = await DbAccess.LoadAsync <SongPlaylist>();
// Get all the SongPlaylistItems
List <SongPlaylistItem> songPlaylistItems = await DbAccess.LoadAsync <SongPlaylistItem>();
// Make sure all these items are linked to songs. Remove any that aren't
List <SongPlaylistItem> orphanItems = songPlaylistItems.Where(item => Songs.GetSongById(item.SongId) == null).ToList();
// Remove any orphaned items
orphanItems.ForEach(item => songPlaylistItems.Remove(item));
DbAccess.DeleteItemsAsync(orphanItems);
// Link the playlists with their playlistitems
songPlaylists.ForEach(playlist => playlist.GetContents(songPlaylistItems));
// Add these to the main collection
PlaylistCollection.AddRange(songPlaylists);
// Now do the same for the AlbumPlaylists
List <AlbumPlaylist> albumPlaylists = await DbAccess.LoadAsync <AlbumPlaylist>();
// Get all the PlaylistItems
List <AlbumPlaylistItem> albumPlaylistItems = await DbAccess.LoadAsync <AlbumPlaylistItem>();
// Link the album playlist items to thier playlists
albumPlaylists.ForEach(playlist => playlist.GetContents(albumPlaylistItems));
PlaylistCollection.AddRange(albumPlaylists);
}
}