/// <summary>
/// Removes tracks from a play-list.
/// </summary>
/// <param name="playlist">The play-list.</param>
/// <param name="tracks">The tracks to remove.</param>
public static void RemoveTracksFromPlaylist(Playlist playlist, List<Track> tracks)
{
if (tracks == null || playlist == null) return;
foreach (var track in tracks.Where(track => playlist.Tracks.Contains(track)))
{
playlist.Tracks.Remove(track);
}
SavePlaylist(playlist);
}
/// <summary>
/// Adds tracks to play-list.
/// </summary>
/// <param name="playlist">The play-list.</param>
/// <param name="tracks">The tracks.</param>
public static void AddTracksToPlaylist(Playlist playlist, List<Track> tracks)
{
if (tracks == null || playlist == null) return;
foreach (var track in tracks.Where(track => !playlist.Tracks.Contains(track)))
{
playlist.Tracks.Add(track);
}
SavePlaylist(playlist);
}
/// <summary>
/// Saves the play-list.
/// </summary>
/// <param name="playlist">The play-list.</param>
public static void SavePlaylist(Playlist playlist)
{
if (playlist == null) return;
if (playlist.Tracks.Count == 0)
{
try
{
File.Delete(playlist.Filename);
}
catch
{
// ignored
}
return;
}
var content = new StringBuilder();
content.AppendLine("#EXTM3U");
foreach (var track in playlist.Tracks)
{
content.AppendLine("#EXTINF:" + track.FullLength.ToString("0") + "," + track.Artist + " - " +
track.Title);
content.AppendLine(track.Filename);
}
File.WriteAllText(playlist.Filename, content.ToString(), Encoding.UTF8);
}
/// <summary>
/// Creates the new play-list.
/// </summary>
/// <param name="playlistName">Name of the play-list.</param>
/// <returns></returns>
public static Playlist CreateNewPlaylist(string playlistName)
{
playlistName = FileSystemHelper.StripInvalidFileNameChars(playlistName.Trim());
var playlist = Playlists.FirstOrDefault(p => p.Name.ToLower() == playlistName.ToLower());
if (playlist != null) return playlist;
playlist = new Playlist {Name = playlistName};
playlist.Filename = Path.Combine(PlaylistFolder, playlist.Name) + ".m3u";
playlist.Tracks = new List<Track>();
Playlists.Add(playlist);
return playlist;
}
/// <summary>
/// Loads a play-list.
/// </summary>
/// <param name="playlistFile">The play-list file.</param>
/// <param name="library">The library.</param>
/// <returns>
/// A play-list object
/// </returns>
public static Playlist LoadPlaylist(string playlistFile, Library library)
{
var playlist = new Playlist
{
Filename = playlistFile,
Name = Path.GetFileNameWithoutExtension(playlistFile)
};
playlist.Name = StringHelper.TitleCase(playlist.Name);
var tracks = from entry
in AudioEngine.Helpers.PlaylistHelper.GetPlaylistEntries(playlistFile)
let entryTitle = entry.Title.ToLower()
let entryArtist = entry.Artist.ToLower()
select library.LoadTrack(entry.Path) ?? library.GetTrack(entryArtist, entryTitle, 0)
into track
where track != null
select track;
playlist.Tracks.AddRange(tracks);
return playlist;
}
public void SavePlaylist(Playlist playlist)
{
PlaylistHelper.SavePlaylist(playlist);
}
public void RemoveTracksFromPlaylist(Playlist playlist, List<Track> tracks)
{
PlaylistHelper.RemoveTracksFromPlaylist(playlist, tracks);
}
public void AddTracksToPlaylist(Playlist playlist, List<Track> tracks)
{
PlaylistHelper.AddTracksToPlaylist(playlist, tracks);
}
/// <summary>
/// Saves the play-list.
/// </summary>
/// <param name="playlistFile">The play-list file.</param>
public void SavePlaylist(string playlistFile)
{
try
{
var playlist = new Playlist
{
Filename = playlistFile,
Tracks = GetTracks()
};
Library.SavePlaylist(playlist);
CurrentPlaylistFile = playlistFile;
}
catch (Exception e)
{
HandleException(e);
}
}
/// <summary>
/// Queues a play-list.
/// </summary>
/// <param name="playlist">The play-list.</param>
public void QueuePlaylist(Playlist playlist)
{
try
{
TrackModels.Clear();
QueueTracks(playlist.Tracks);
}
catch (Exception e)
{
HandleException(e);
}
}
