public PerformerVM[] GetLastTwoSingers()
{
List <Performer> allSingers = new List <Performer>();
if (_lastBestAlbums == null)
{
return(null);
}
foreach (var entertainment in _lastBestAlbums)
{
Performer[] allEntertainmentsSingers = Performer.GetSingerByEntertainment(entertainment.EntertainmentDL);
if (allEntertainmentsSingers != null)
{
foreach (var singer in allEntertainmentsSingers)
{
if (allSingers.FindAll((sing) => sing.Id == singer.Id).Count == 0)
{
allSingers.Add(singer);
}
}
}
if (allSingers.Count == 0)
{
return(null);
}
}
Performer[] twoPerformers = allSingers.OrderByDescending(singer => Entertainment.AverageCriticPointForEntertainments(Entertainment.GetEntertainmentByPerformer(singer))).Take(2).ToArray();
List <PerformerVM> result = new List <PerformerVM>();
foreach (var performer in twoPerformers)
{
result.Add(new PerformerVM(performer));
}
return(result.ToArray());
}