public static ICarSortStrategy<TCar> GetStrategy<TCar>(
UsedCarSortStrategyType sortType,
SortStrategyDirection sortDirection) where TCar : UsedCar
{
switch (sortType)
{
case UsedCarSortStrategyType.Price when sortDirection == SortStrategyDirection.Ascending:
return new SortCarsByPredicateStrategy<TCar, decimal>(c => c.Price);
case UsedCarSortStrategyType.Price when sortDirection == SortStrategyDirection.Descending:
return new SortCarsByPredicateDescStrategy<TCar, decimal>(c => c.Price);
case UsedCarSortStrategyType.Year when sortDirection == SortStrategyDirection.Ascending:
return new SortCarsByPredicateStrategy<TCar, string>(c => c.Year);
case UsedCarSortStrategyType.Year when sortDirection == SortStrategyDirection.Descending:
return new SortCarsByPredicateDescStrategy<TCar, string>(c => c.Year);
case UsedCarSortStrategyType.Warranty when sortDirection == SortStrategyDirection.Ascending:
return new SortCarsByPredicateStrategy<TCar, int>(c => c.WarrantyMonthsLeft);
case UsedCarSortStrategyType.Warranty when sortDirection == SortStrategyDirection.Descending:
return new SortCarsByPredicateDescStrategy<TCar, int>(c => c.WarrantyMonthsLeft);
case UsedCarSortStrategyType.Mileage when sortDirection == SortStrategyDirection.Ascending:
return new SortCarsByPredicateStrategy<TCar, double>(c => c.Mileage);
case UsedCarSortStrategyType.Mileage when sortDirection == SortStrategyDirection.Descending:
return new SortCarsByPredicateDescStrategy<TCar, double>(c => c.Mileage);
default:
throw new InvalidEnumArgumentException();
}
}
public IActionResult ChangeSortType(UsedCarSortStrategyType sortStrategyType, string returnUrl)
{
var sortTypeKey = WebConstants.CookieUserUsedCarsSortTypeKey;
this.cookiesService.SetCookieValue(this.HttpContext.Response.Cookies, sortTypeKey, sortStrategyType.ToString());
return(Redirect(returnUrl));
}
