/// <summary>
/// Add product in cart
/// </summary>
/// <param name="product">Product to be added in cart</param>
/// <returns>Total cost of the Product(s)</returns>
public double Add(IProduct product)
{
var productCartItem = _cart.FirstOrDefault(x => x.Product.Id == product.Id);
if (productCartItem == null)
{
var cartItem = new CartItem()
{
Product = product
};
_cart.Add(cartItem);
productCartItem = cartItem;
}
var discounts = _discountDb.GetProductDiscounts(productCartItem.Product);
productCartItem.Count = productCartItem.Count + 1;
var productTotalPrice = 0.0;
if (discounts != null && discounts.Count > 0)
{
foreach (var discount in discounts)
{
productTotalPrice = productTotalPrice + discount.Apply(_cart);
}
}
else
{
productTotalPrice = productCartItem.TotalPrice + product.Price;
}
productCartItem.TotalPrice = productTotalPrice;
return(productTotalPrice);
}
