public IActionResult SortAndFilter(string[] genresIds, string[] featuresIds, string[] pricesIds, string[] sortsIds, string searchStr)
{
searchStr = searchStr is null ? "" : searchStr;
if (!string.IsNullOrEmpty(searchStr))
{
ViewBag.isRedirectedFromOtherPageBySearchBtn = true;
}
IEnumerable <Game> foundGames = gamesTable.SearchGames(searchStr);
// construct all filters by data received from page
GameFilter?filter = new GameFilter {
Genres = genresIds.Select(id => genresTable.GetGenreByUrlId(id)).ToList() !,
Features = featuresIds.Select(id => featuresTable.GetFeatureByUrlId(id)).ToList() !
};
if (filter.Genres.Count == 0 && filter.Features.Count == 0)
{
filter = null;
}
// construct all categories by data received from page
List <PriceCategory> categories = pricesIds.Select(
id => priceCategoriesTable.GetCategoryByUrlId(id)
).ToList() !;
// get sort type by data received from page
SortingTypes sortType = HomeViewModel.SortingItems[sortsIds[0]].Value;
// get filtered and sorted games
IEnumerable <Game> filteredAndSortedGames = gamesTable
.GetGamesByFilter(filter !, categories)
.SortBy(sortType);
IEnumerable <Game> result;
// to avaoid multiple enumeration
IEnumerable <Game> foundAsList = foundGames as Game[] ?? foundGames.ToArray();
IEnumerable <Game> filteredAndSortedAsList = filteredAndSortedGames as Game[] ?? filteredAndSortedGames.ToArray();
// find intersection between found games and filtered games
result = filteredAndSortedAsList.Where(
g => foundAsList.FirstOrDefault(fg => fg.Id == g.Id) != null
);
IEnumerable <GameCard> gameCards = CreateGameCards(result);
return(PartialView("_GamesListPartial", gameCards));
}
}
