public async Task RefreshFilms(string cinemaId)
{
var externalFilms = await _apiClient.GetFilmsForCinema(cinemaId);
var localFilms = await GetLocalFilms();
var allFilms = await _apiClient.GetAllFilms();
await CheckForUnlimitedScreenings();
var isFirstRun = !localFilms.Any();
var existingLocalFilms = localFilms
.Where(x => externalFilms.Any(y => y.FilmId == x.Code))
.ToList();
var localFilmsChanged = CorrectWeightingOfExistingFilms(existingLocalFilms, allFilms);
var existingExternalFilms = externalFilms
.Where(x => localFilms.Any(y => y.Code == x.FilmId))
.ToList();
var filmsToRemove = localFilms
.Where(x => existingLocalFilms.All(y => y.Code != x.Code))
.ToList();
if (filmsToRemove.Any())
{
RemoveFilms(localFilms, filmsToRemove);
localFilmsChanged = true;
}
var addedExternalFilms = externalFilms
.Except(existingExternalFilms)
.ToList();
var addedLocalFilms = allFilms
.Where(x => addedExternalFilms.Any(y => y.FilmId == x.Code))
.ToList();
if (addedExternalFilms.Any())
{
if (!isFirstRun)
{
await _toastService.DisplayToasts(addedLocalFilms);
}
localFilms.AddRange(addedLocalFilms);
localFilmsChanged = true;
}
if (localFilmsChanged)
{
localFilms = localFilms.OrderBy(x => x.Weight).ToList();
await WriteFilmsToFile(FilmCacheFile, localFilms);
_filmCache.ClearCache(FilmCacheFile);
}
await WriteFilmsToFile(AllFilmCacheFile, allFilms);
}
