public async Task SyncFavoriteListAsync(bool forceRefresh = false)
{
try
{
var fav = await CachedClient.GetUserFavoriteVolumesAsync(!IsUserFavoriteValiad || forceRefresh);
if (FavoriteList == null)
{
FavoriteList = new ObservableCollection <FavourVolume>(fav);
}
else
{
//FavoriteList.Clear();
var olds = FavoriteList.Except(fav, new FavItemEqualityComparer()).ToArray();
foreach (var item in olds)
{
FavoriteList.Remove(item);
}
var news = fav.Except(FavoriteList, new FavItemEqualityComparer()).ToArray();
foreach (var item in fav)
{
if (!FavoriteList.Any(f => f.VolumeId == item.VolumeId))
{
FavoriteList.Add(item);
}
}
}
}
catch (Exception exception)
{
Debug.WriteLine("Error : Failed to Sync User Favorite : " + exception.Message);
if (FavoriteList == null)
{
FavoriteList = new ObservableCollection <FavourVolume>();
}
}
}
