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