public async Task <IActionResult> UpdateProductCart(Guid productId, CustomerCartProduct customerCartProduct)
{
var customerCart = await GetCustomerCart();
var productCart = await GetCartProductValidated(productId, customerCart, customerCartProduct);
if (productCart == null)
{
return(GenerateResponse());
}
customerCart.UpdateQuantity(productCart, customerCartProduct.Quantity);
_context.CustomerCarts.Update(customerCart);
_context.CustomerCartProducts.Update(productCart);
var commitResult = await _context.SaveChangesAsync();
if (commitResult <= 0)
{
AddErrorToList("The data was not persisted on database.");
}
return(GenerateResponse());
}
private async Task <CustomerCartProduct> GetCartProductValidated(Guid productId,
CustomerCart customerCart,
CustomerCartProduct customerCartProduct = null)
{
if (customerCartProduct != null && productId != customerCartProduct.Id)
{
AddErrorToList("Product id doesn't match.");
return(null);
}
if (customerCart == null)
{
AddErrorToList("Customer cart not found.");
return(null);
}
var itemCart = await _context.CustomerCartProducts
.FirstOrDefaultAsync(p => p.CustomerCartId == customerCart.Id && p.ProductId == productId);
if (itemCart == null)
{
AddErrorToList("Product isn't in the cart.");
return(null);
}
return(itemCart);
}
private void HandleNewCart(Guid customerId, CustomerCartProduct cartProduct)
{
var cart = new CustomerCart(customerId);
cart.AddProduct(cartProduct);
_context.CustomerCarts.Add(cart);
}
private void HandleExistentCart(CustomerCart cart, CustomerCartProduct cartProduct)
{
var productInCart = cart.ProductInCart(cartProduct.Id);
cart.AddProduct(cartProduct);
if (productInCart)
{
_context.CustomerCartProducts.Update(cart.GetProductById(cartProduct.Id));
}
else
{
_context.CustomerCartProducts.Add(cart.GetProductById(cartProduct.Id));
}
_context.CustomerCarts.Update(cart);
}
public async Task <IActionResult> PostCartItem(CustomerCartProduct cartProduct)
{
var customerCart = await GetCustomerCart();
if (customerCart == null)
{
HandleNewCart(_user.GetUserId(), cartProduct);
}
else
{
HandleExistentCart(customerCart, cartProduct);
}
var commitResult = await _context.SaveChangesAsync();
if (commitResult <= 0)
{
AddErrorToList("The data was not persisted on database.");
}
return(GenerateResponse());
}
