public SearchResultFilter(ISettings settings, MovieGenreSettingsModel genreSettings)
{
this.settings = settings;
_genreSettings = genreSettings;
filterByTimeframe = _filterByTimeframe;
filterByGenres = _filterByGenres;
}
/// <summary>
/// Updates the names assigned to the genreid-s to be consistent with the selected language
/// </summary>
public async Task UpdateGenreListLanguage(string newLanguage, MovieGenreSettingsModel movieGenreSettings)
{
var response = await _tmdbApiService.TryGetGenreIdsWithNames(newLanguage, 2, 1000);
if (response.HttpStatusCode.IsSuccessCode())
{
var fetchedCategories = response.GenreIdNamePairs;
UpdateExistingGenreCategories(fetchedCategories.Genres, movieGenreSettings);
await SaveGenreSelection(movieGenreSettings);
}
}
/// <summary>
/// Persists the current genre settings locally on the device
/// </summary>
public async Task SaveGenreSelection(MovieGenreSettingsModel movieGenreSettings)
{
_appDictionary[nameof(MovieGenreSettingsModel)] = JsonConvert.SerializeObject(movieGenreSettings.UserGenreSelection);
await _localSettingsPersister.SavePropertiesAsync();
}
/// <summary>
/// updates the existing MovieGenreSettingsModel based on the collection passed in.
/// This is necessary if new genre tags appear on the server or the user changes
/// the preferred language. In the later case the display names assigned to the genreids
/// are replaced
/// </summary>
/// <param name="updatedGenreIdNamePairs">up to date collection of genreid-to-name pairs</param>
/// <param name="movieGenreSettings">object to update</param>
private void UpdateExistingGenreCategories(GenreIdNamePair[] updatedGenreIdNamePairs, MovieGenreSettingsModel movieGenreSettings)
{
if (updatedGenreIdNamePairs?.Length < 1)
{
return;
}
// Delete GenreItem-s which are not included in the new update
IEnumerable <GenreItem> toRemove = movieGenreSettings.UserGenreSelection.Where(x => updatedGenreIdNamePairs.Count(y => y.Id == x.Id) == 0);
foreach (GenreItem item in toRemove)
{
movieGenreSettings.UserGenreSelection.Remove(item);
}
// Update the old elements with the new name
foreach (var item in movieGenreSettings.UserGenreSelection)
{
item.GenreName = updatedGenreIdNamePairs.First(x => x.Id == item.Id).Name;
}
// Prepare and add new elements to the display collection
var newElements = updatedGenreIdNamePairs
.Where(x => movieGenreSettings.UserGenreSelection
.Count(y => y.Id == x.Id) == 0)
.Select(z => new GenreItem {
Id = z.Id, GenreName = z.Name, IsSelected = true
});
foreach (GenreItem item in newElements)
{
movieGenreSettings.UserGenreSelection.Add(item);
}
}
public MovieDetailModelConfigurator(ISettings settings, ITmdbConfigurationCache tmdbConfigurationCache, MovieGenreSettingsModel movieGenreSettings)
{
_settings = settings;
_tmdbConfigurationCache = tmdbConfigurationCache;
_movieGenreSettings = movieGenreSettings;
}
public MovieGenreSettings2PageViewModel(MovieGenreSettingsModel movieGenreSettings, IMovieGenreSettingsService movieGenreSettingsService, IPageService pageService) : base(pageService)
{
MovieGenreSettings = movieGenreSettings;
_movieGenreSettingsService = movieGenreSettingsService;
}