public ShoppingCartItem AddProductToCart(string shoppingCartId, Product product)
{
lock (_lock)
{
ShoppingCart shoppingCart = GetById(shoppingCartId);
if (shoppingCart == null)
{
shoppingCart = new ShoppingCart(new List<ShoppingCartItem>())
{
ShoppingCartId = shoppingCartId,
Currency = "USD",
TaxRate = .09
};
_shoppingCarts[shoppingCartId] = shoppingCart;
}
ShoppingCartItem item = shoppingCart.ShoppingCartItems.FirstOrDefault(c => c.Product.ProductNumber == product.ProductNumber);
if (item == null)
{
item = new ShoppingCartItem
{
Id = product.ProductNumber,
Product = product,
Quantity = 1,
Currency = shoppingCart.Currency
};
shoppingCart.ShoppingCartItems.Add(item);
}
else
{
item.Quantity++;
}
UpdatePrices(shoppingCart);
return item;
}
}
ShoppingCartItem IShoppingCartRepository.AddProductToCart(string shoppingCartId, Product product)
{
return AddProductToCartDelegate(shoppingCartId, product);
}