public IActionResult Details(int id)
        {
            Serie serie      = _mediaService.GetAllSeries().FirstOrDefault(x => x.Id == id);
            var   allseasons = _mediaService.GetAllSeasons();

            serie.Seasons = _mediaService.GetAllSeasons().Where(Season => Season.Serie == serie).ToList();

            SerieDetailViewModel vm = MapToViewModel(serie);

            // SetSeasonsAndEpisodes(vm);
            return(View(vm));
        }
        public IActionResult AddEpisode(int serieId)
        {
            var selectedSerie = _mediaService.GetAllSeries().First(serie => serie.Id == serieId);


            selectedSerie.Seasons = _mediaService.GetAllSeasons().Where(z => z.Serie.Id == serieId).ToList();
            var Seasonen = selectedSerie.Seasons == null ? new List <Season>() : selectedSerie.Seasons.ToList();

            EpisodeCreateViewModel Epimodel = new EpisodeCreateViewModel()
            {
                SerieName       = selectedSerie.Name,
                PossibleSeasons = Seasonen,
                ReleaseDate     = DateTime.Now
            };

            return(View(Epimodel));
        }