/// <summary>
/// On post Add the product to cart
/// </summary>
/// <returns></returns>
public async Task <IActionResult> OnPost()
{
var user = await _userManager.GetUserAsync(User);
if (user == null)
{
return(new RedirectToPageResult("/Account/Login"));
}
var cart = await _cart.GetCart(user.Email);
if (cart == null)
{
cart = new Cart()
{
Date = DateTime.Now,
UserEmail = User.Identity.Name
};
await _cart.CreateCart(cart);
}
if (Quantity > Product.Quantity || Quantity <= 0)
{
IsAvailable = true;
return(Page());
}
if (Quantity <= Product.Quantity && Quantity > 0)
{
if (cart.CartItems != null)
{
foreach (var item in cart.CartItems)
{
if (item.ProductId == Product.Id)
{
var productExist = await _product.GetProduct(Product.Id);
productExist.Quantity = productExist.Quantity - Quantity;
_product.UpdateProduct(productExist).Wait();
var duplicateCart = await _cartItem.GetCartItem(Product.Id, cart.Id);
duplicateCart.Quantity = duplicateCart.Quantity + Quantity;
_cartItem.UpdateCartItem(duplicateCart).Wait();
cart.Quantity = cart.Quantity + Quantity;
cart.Price += Product.Price * Quantity;
_cart.UpdateCart(cart).Wait();
return(Page());
}
}
}
await _cartItem.AddProductToCart(Product, cart, Quantity);
Product.Quantity = Product.Quantity - Quantity;
await _product.UpdateProduct(Product);
}
return(Page());
}