// Returns track by index
public DeezerTrack getTrack(int index)
{
try
{
return(search_results.data[index]);
}
catch
{
DeezerTrack bad_result = new DeezerTrack();
return(bad_result);
}
}
// Adding track to a playlist
// 0 : no errors
// 1 : default DeezerTrack object
// 2 : track already in playlist
// 42: get string error to have message
public int addTrackToPlaylist(DeezerTrack src_track, int user_index, int playlist_index)
{
int status = 0;
try
{
// Check if given track object is not just initialized
if (src_track.Equals(default(DeezerTrack)))
{
status = 1;
}
else
{
// Check if track isn't already in the playlist
bool is_track_already_here = false;
foreach (DeezerTrack track in database.user[user_index].playlists[playlist_index].tracklist)
{
if (src_track.id == track.id)
{
is_track_already_here = true;
}
}
// If track doesn't exists in playlist
if (is_track_already_here == false)
{
// Adding it
database.user[user_index].playlists[playlist_index].tracklist.Add(src_track);
// Saving changes in database
saveDatabase();
}
else
{
status = 2;
}
}
}
// If something else happend
catch (Exception ex)
{
error = ex.Message;
status = 42;
}
return(status);
}
// Reads track preview if it exists
public async void readPreview(DeezerTrack track)
{
try
{
// Check if given track is not just initialized
if (track.Equals(default(DeezerTrack)))
{
error = "Given track is only initialized (default value)";
}
else
{
string track_preview_file = track.id.ToString() + ".mp3";
try
{
track_file = await ApplicationData.Current.LocalFolder.GetFileAsync(track_preview_file);
download_status = 4;
playMusic.Stop();
playMusic.SetSource(await track_file.OpenAsync(FileAccessMode.Read), track_file.ContentType);
playMusic.Play();
}
catch
{
// Checking if the folder is valid
if (ApplicationData.Current.LocalFolder != null)
{
// file object
track_file = await ApplicationData.Current.LocalFolder.CreateFileAsync(track_preview_file, CreationCollisionOption.ReplaceExisting);
// starts the download
dlOperation = bDownloader.CreateDownload(new Uri(track.preview), track_file);
// used to display download progression
Progress <DownloadOperation> progression = new Progress <DownloadOperation>(progressChanged);
CancellationTokenSource cancellationToken = new CancellationTokenSource();
try
{
download_status = 2;
await dlOperation.StartAsync().AsTask(cancellationToken.Token, progression);
}
catch (Exception ex)
{
download_status = 3;
await dlOperation.ResultFile.DeleteAsync();
error = ex.Message;
dlOperation = null;
}
}
else
{
download_status = 1;
}
}
}
}
catch (Exception ex)
{
error = ex.Message;
}
}
