public async Task <Cart> UpdateProductQuantity(string cartId, UpdateCartProductDto dto)
{
var cart = await GetCartById(cartId);
if (cart == null)
{
return(null);
}
var product = await _productService.GetProductById(dto.ProductId);
if (product == null)
{
return(null);
}
var isProductExistInCart = cart.Products.Any(p => p.ProductId == dto.ProductId);
if (!isProductExistInCart)
{
return(cart);
}
var cartProduct = cart.Products.FirstOrDefault(cp => cp.ProductId == dto.ProductId && cp.ID == dto.CartProductId);
if (cartProduct == null)
{
return(cart);
}
cartProduct.Quantity = dto.Quantity;
cartProduct.UnitPrice = product.Pricing.Price;
cartProduct.TotalPrice = cartProduct.UnitPrice * (decimal)dto.Quantity;
cart.Quantity = cart.Products.Sum(s => s.Quantity);
cart.TotalPrice = cart.Products.Sum(s => s.TotalPrice);
var update = Builders <Cart> .Update
.Set("Quantity", cart.Quantity)
.Set("TotalPrice", cart.TotalPrice)
.Set("UpdatedAt", cart.UpdatedAt)
.Set("Products", cart.Products);
var options = new FindOneAndUpdateOptions <Cart, Cart> {
ReturnDocument = ReturnDocument.After
};
var updatedCart = await _carts.FindOneAndUpdateAsync <Cart, Cart>(r => r.ID == cartId, update, options);
updatedCart = await _populateCartProductsImage(updatedCart);
return(updatedCart);
}
public async Task <ActionResult <ApiResponse <Cart> > > UpdateProductQuantity(string cartId, UpdateCartProductDto dto)
{
try
{
if (string.IsNullOrWhiteSpace(cartId))
{
return(BadRequest("Cart ID is empty."));
}
var updatedCart = await _cartService.UpdateProductQuantity(cartId, dto);
return(updatedCart.CreateSuccessResponse("Cart updated successfully!"));
}
catch (Exception exception)
{
return(BadRequest(exception.CreateErrorResponse()));
}
}
