public void Clear()
{
DiscountPercent = 0;
DiscountAmount = 0;
ShoppingCartItems.Clear();
ShoppingCartCoupons.Clear();
}
public void ApplyCoupon(Coupon coupon)
{
coupon.Apply(this, User);
var lineCoupon = LineCoupon.Create(coupon, this);
ShoppingCartCoupons.Add(lineCoupon);
}
public void RemoveCoupon(Coupon coupon)
{
coupon.Remove(this);
var lineCoupons = ShoppingCartCoupons.ToList();
lineCoupons.Remove(ShoppingCartCoupons.SingleOrDefault(c => c.CouponId == coupon.Id));
ShoppingCartCoupons = lineCoupons;
}
public Order CheckOut()
{
// 1. validate shoppingCart items
if (ShoppingCartItems.Count <= 0)
{
throw new ShoppingCartValidationException("your shopping cart is empty.");
}
foreach (var item in ShoppingCartItems)
{
item.Validate();
}
// 2. validate shoppingCart Coupons
foreach (var coupon in ShoppingCartCoupons.Select(sc => sc.Coupon))
{
coupon.Validate(User);
}
// 3. create order, move items & coupons to order
return(Order.Create(User, this));
}
public void RemoveShoppingCartItem(LineItem item)
{
// remove item
var itemList = ShoppingCartItems.ToList();
itemList.Remove(item);
ShoppingCartItems = itemList;
// check coupons if not valid then remvove the coupon
var lineCoupons = ShoppingCartCoupons.ToList();
var coupons = ShoppingCartCoupons.Select(sc => sc.Coupon);
foreach (var c in coupons)
{
if (!c.IsCouponRulesApplicable(itemList))
{
c.Remove(this);
lineCoupons.Remove(ShoppingCartCoupons.SingleOrDefault(sc => sc.CouponId == c.Id));
}
}
ShoppingCartCoupons = lineCoupons;
}
