public ViewCartItem applyCoupon(Coupons coupon)
{
List <Carts> cartItems = new List <Carts>();
List <Products> productItems = new List <Products>();
List <CartProducts> cartProductItems = new List <CartProducts>();
cartProductItems = _cartProductDAL.GetList();
cartItems = _cartDAL.GetList();
productItems = _productDAL.GetList();
ViewCartItem viewCartItem = new ViewCartItem();
decimal _totalPrice = 0;
var cartProducts = //sepetteki toplam tutar
from CartProduct in cartProductItems
join Cart in cartItems on CartProduct.CartId equals Cart.Id
join Product in productItems on CartProduct.ProductId equals Product.Id
select new { Cart.TotalPrice, CartProduct.ProductId, CartProduct.CartId, ProductName = Product.Title, UnitPrice = Product.Price };
foreach (var item in cartProducts.ToList())
{
_totalPrice = Convert.ToDecimal(item.TotalPrice);
//sepetteki tutar kupondaki limite eşit veya fazla ise
if (coupon.Price <= _totalPrice)
{
if (_couponDAL.GetList(x => x.DiscountRate == coupon.DiscountRate && x.DiscountTypeId == coupon.DiscountTypeId && x.Price == coupon.Price).Count == 0)
{
_couponDAL.Add(coupon);//kupon eklendi
}
//sepetteki ürün
var discountedProduct = _productDAL.Get(x => x.Id == item.ProductId);
if (coupon.DiscountTypeId == (int)EnumDiscountTypes.Rate)//Convert.ToInt32(discountTypeItems.Where(a => a.Title == "Rate").Select(x => x.Id).ToList()))
{
//kuponun oran bazında indirimli halinin sepet tutarına yansıtılmış hali
var discountedPriceForRate = _totalPrice - (_totalPrice * coupon.DiscountRate) / 100;
discountedProduct.Price = discountedPriceForRate;
}
else if (coupon.DiscountTypeId == (int)EnumDiscountTypes.Amount)//Convert.ToInt32(discountTypeItems.Where(a => a.Title == "Amount").Select(x => x.Id).ToList()))
{
//kuponun miktar bazında indirimli halinin sepet tutarına yansıtılmış hali
var discountedPriceForAmount = _totalPrice - coupon.DiscountRate;
discountedProduct.Price = discountedPriceForAmount;
}
cartItems = _cartDAL.GetList(x => x.Id == item.CartId).ToList();
// indirim sepetteki ürünlere yansıtıldı.
foreach (var cartItem in cartItems)
{
cartItem.Id = discountedProduct.Id;
cartItem.TotalPrice = discountedProduct.Price;
_cartDAL.Update(cartItem);
}
viewCartItem.Amount = cartItems.FirstOrDefault().Amount;
viewCartItem.CartId = cartItems.FirstOrDefault().Id;
viewCartItem.DiscountedTotalPrice = cartItems.FirstOrDefault().TotalPrice;
viewCartItem.ProductName = cartProducts.FirstOrDefault().ProductName;
viewCartItem.TotalPrice = cartItems.FirstOrDefault().Amount *cartProducts.FirstOrDefault().UnitPrice;
viewCartItem.UnitPrice = cartProducts.FirstOrDefault().UnitPrice;
viewCartItem.TotalPriceInCart = discountedProduct.Price;
}
else
{
viewCartItem.TotalPriceInCart = _totalPrice;
viewCartItem.ErrorInfo = "Sepetteki toplam tutar, kupon limitinden az! Sepete en az " + (coupon.Price - _totalPrice).ToString() + "TL" + " tutarında daha ürün eklemelisiniz !";
}
}
return(viewCartItem);
}
public void createCoupon(Coupons coupon)
{
_couponDAL.Add(coupon);
}