public ShoppingCart Sell <T>(T requestedItem, int quantity) where T : BaseItem
{
var discount = DiscountHelper.GetDiscount(quantity);
return(new ShoppingCart
{
Item = requestedItem,
PurchaseQuantity = quantity,
PurchaseDiscount = discount,
PurchaseAmount = requestedItem.Price * DiscountHelper.ApplyDiscount(discount) * quantity
});
}
public override decimal CalculateDeduction(string name)
{
return(DiscountHelper.CanApplyNameDiscount(name) ? DiscountHelper.ApplyDiscount(500.00M) : 500.00M);
}