public async Task <CartResponse> addToCartAsync(AddToCartModel addToCartModel)
{
if (addToCartModel == null)
{
return(new CartResponse {
Status = "Error", Message = "Bad request"
});
}
var cart = await appDb.Carts.SingleOrDefaultAsync(x => x.Id == addToCartModel.CartId);
if (cart == null)
{
cart = new ShoppingCart();
await appDb.AddAsync(cart);
await appDb.SaveChangesAsync();
}
var cartProduct = await appDb.CartProducts.FindAsync(cart.Id, addToCartModel.ProductId, addToCartModel.ProductVariationId);
var productOption = await appDb.Options.Where(o => o.Name == addToCartModel.OptionName).FirstOrDefaultAsync();
// If null return error indicator
if (productOption == null)
{
return(new CartResponse {
Status = "Error", Message = "Option not found"
});
}
var productStock = appDb.ProductOptions
.Where(p => p.ProductId == addToCartModel.ProductId && p.ProductVariationId == addToCartModel.ProductVariationId && p.OptionId == productOption.Id)
.Select(p => p.ProductStock)
.FirstOrDefault();
if (productStock < addToCartModel.Quantity)
{
return(new CartResponse {
Status = "Error", Message = "Not enough products in stock"
});
}
if (addToCartModel.Quantity == null)
{
addToCartModel.Quantity = 1;
}
if (cartProduct == null)
{
cartProduct = new CartProduct()
{
CartId = cart.Id,
ProductId = addToCartModel.ProductId,
ProductVariationId = addToCartModel.ProductVariationId,
Quantity = (int)addToCartModel.Quantity,
OptionId = productOption.Id,
Option = productOption
};
await appDb.CartProducts.AddAsync(cartProduct);
}
else
{
if (productStock <= cartProduct.Quantity)
{
return(new CartResponse {
Status = "Error", Message = "Not enough products in stock"
});
}
cartProduct.Quantity += (int)addToCartModel.Quantity;
}
await appDb.SaveChangesAsync();
cart.TotalPrice = await getCartPriceAsync(cart.Id);
await appDb.SaveChangesAsync();
var cartCount = await getCartProductsCountAsync(cart.Id);
var cartProducts = await getCartProductsAsync(cart.Id);
return(new CartResponse {
CartId = cart.Id, CartPrice = cart.TotalPrice, CartCount = cartCount, CartProducts = cartProducts, Status = "Success", Message = "Succesfully added product to cart"
});
}
