/// <summary>
/// Method for adding given music file to given playlist
/// and notyfing background player about made changes
/// </summary>
/// <param name="musicFile">Music file to add to playlist</param>
/// <param name="playlist">Playlist for music file to be added</param>
public async void AddMusicFileToPlaylist(MusicFileViewModel musicFile, MusicPlaylistViewModel playlist)
{
if (!playlist.musicFileList.ToList().Exists(m => m
== musicFile))
{
playlist.Add(musicFile);
App.SendMessageToBackground(MessageType.AddToPlaylist, playlist.Name + "\t" + musicFile.Id);
}
else
{
await new MessageDialog("Wybrany utwór już znajduje się w liście odtwarzania!", "Błąd").ShowAsync();
}
}
private async void MessageReceivedFromBackground(object sender, MediaPlayerDataReceivedEventArgs arguments)
{
object message;
try
{
if (arguments.Data.TryGetValue(MessageType.Message.ToString(), out message))
{
//It is a command, handle it
Command command;
if (Enum.TryParse(message.ToString(), out command))
{
switch (command)
{
case Command.Pause:
break;
case Command.Play:
break;
}
}
else
{
Debug.WriteLine("An error occured while processing send command");
}
}
else if (arguments.Data.TryGetValue(MessageType.MediaPlaybackItem.ToString(), out message))
{
await Task.Delay(400);
MusicFileViewModel musicFile = musicPlayerData.CurrentPlaylist
.musicFileList.Where(m => m.Id == message.ToString()).Single();
if (musicPlayerData.CurrentPlaylist == musicPlayerData.MainPlaylist)
{
MainPage.Instance.SetCurrentItem(musicFile);
}
else
{
MusicPlaylistView.Instance.SetCurrentItem(musicFile);
}
}
else if (arguments.Data.TryGetValue(MessageType.Playlist.ToString(), out message))
{
//There is a playlist to add, handle it
MusicPlaylistViewModel playlist = null;
string dataSeparator = "\t";
string filesSeparator = "\n";
string[] playlistData = message.ToString().Split(filesSeparator.ToCharArray().Single());
//Validate that first element in data is name of playlist
if (playlistData[0].Split(dataSeparator.ToCharArray().Single()).Length != 1)
{
throw new Exception("Incorrect data frame");
}
else
{
if (musicPlayerData.MusicPlaylists.Where(m => m
.Name == playlistData[0]).Count() == 0)
{
playlist = new MusicPlaylistViewModel(playlistData[0]);
//Remove first element which contains playlist name
List <string> playlistList = playlistData.ToList();
playlistList.RemoveAt(0);
foreach (var musicData in playlistList)
{
if (musicData != "")
{
playlist.Add(musicPlayerData.MainPlaylist.musicFileList
.Where(m => m.Id == musicData).Single());
}
}
//Playlist is ready, add it to list
musicPlayerData.AddPlaylist(playlist);
}
else
{
throw new Exception("Playlist already exists");
}
}
}
else if (arguments.Data.TryGetValue(MessageType.CurrentPlaylist.ToString(), out message))
{
if (musicPlayerData.MainPlaylist.Name == message.ToString())
{
musicPlayerData.SetCurrentPlaylist(musicPlayerData.MainPlaylist);
}
else if (musicPlayerData.MusicPlaylists.Where(m => m.Name == message.ToString()).Count() == 1)
{
musicPlayerData.SetCurrentPlaylist(musicPlayerData.MusicPlaylists.Where(m => m.Name == message.ToString()).Single());
}
}
else if (arguments.Data.TryGetValue(MessageType.MainPlaylist.ToString(), out message))
{
//Main playlist have changed, update it
MusicPlaylistViewModel mainPlaylist = null;
string dataSeparator = "\t";
string filesSeparator = "\n";
string[] playlistData = message.ToString().Split(filesSeparator.ToCharArray().Single());
//Validate that first element in data is name of playlist
if (playlistData[0].Split(dataSeparator.ToCharArray().Single()).Length != 1)
{
throw new Exception("Incorrect data frame");
}
else
{
mainPlaylist = new MusicPlaylistViewModel(playlistData[0]);
//Remove first element which contains playlist name
List <string> playlistList = playlistData.ToList();
playlistList.RemoveAt(0);
foreach (var musicData in playlistList)
{
if (musicData != "")
{
string[] musicDetails = musicData.Split(dataSeparator.ToCharArray().Single());
if (musicDetails.Length != 4)
{
//Data is incomplete or corrupted, abort
throw new Exception("Data is either corrupted or incomplete");
}
else
{
MusicFileViewModel musicFile = new MusicFileViewModel();
musicFile.Id = musicDetails[0];
musicFile.Title = musicDetails[1];
musicFile.Artist = musicDetails[2];
musicFile.Duration = TimeSpan.Parse(musicDetails[3]);
mainPlaylist.musicFileList.Add(musicFile);
}
}
}
//Playlist is ready, set is as current
musicPlayerData.SetMainPlaylist(mainPlaylist);
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
