private async Task SetList(PlayList pl, bool random = true)
{
CurrentList = pl;
FileList = await Task.Run(() =>
new ObservableCollection<ListFiles>(pl.ListFiles.Where(lf => lf.IsChecked)));
if (random)
miRandom_Click(null, null);
}
public static async Task<int> ReloadPlayList(PlayList pl)
{
return await Task.Run(() =>
{
int count = 0;
var newLines = ImportListFile(pl.Source, ListType.M3U8);
if (newLines == null)
return 0;
var dict = pl.ListFiles.ToDictionary(lf => lf.MusicFile.FullName);
var oldLines = dict.Keys.AsEnumerable();
var del = oldLines.Except(newLines).Select(ol => dict[ol]);
var add = newLines.Except(oldLines).Select(nl => MDModel.Model.MusicFile.SingleOrDefault(m => m.FullName == nl));
foreach (var di in del)
pl.ListFiles.Remove(di);
count += MDModel.Model.SaveChanges();
foreach (var ai in add)
{
if (ai == null)
continue;
var lf = new ListFiles()
{
FileId = ai.FileId,
IsChecked = true,
ListId = pl.ListId,
};
pl.ListFiles.Add(lf);
}
count += MDModel.Model.SaveChanges();
return count;
});
}