private async Task RestorePlaylist()
{
try
{
var playlist = await BackgroundTrackRepository.LoadPlaylist();
if (!playlist.Any())
{
return;
}
var trackIds = playlist.Select(node => node.TrackId);
var restoredplaylist = new SmartCollection <IMediaItem>();
foreach (int trackId in trackIds)
{
var trackItem = await Locator.MediaLibrary.LoadTrackById(trackId);
if (trackItem != null)
{
restoredplaylist.Add(trackItem);
}
}
if (!ApplicationSettingsHelper.Contains(nameof(CurrentMedia)))
{
return;
}
var index = (int)ApplicationSettingsHelper.ReadSettingsValue(nameof(CurrentMedia));
if (restoredplaylist.Any())
{
if (index == -1)
{
// Background Audio was terminated
// We need to reset the playlist, or set the current track 0.
ApplicationSettingsHelper.SaveSettingsValue(nameof(CurrentMedia), 0);
index = 0;
}
SetCurrentMediaPosition(index);
}
if (CurrentMedia >= restoredplaylist.Count || CurrentMedia == -1)
{
CurrentMedia = 0;
}
if (restoredplaylist.Any())
{
await SetPlaylist(restoredplaylist, true, false, restoredplaylist[CurrentMedia]);
}
}
catch (Exception e)
{
Debug.WriteLine("Failed to restore the playlist");
}
}