public void AddCartProduct(Guid pId, string email)
        {
            Cart cart = _cartRepo.GetCartProduct(email, pId);

            if (cart == null)
            {
                Cart p = new Cart();
                p.Email     = email;
                p.Quantity += 1;
                p.ProductFk = _productRepo.GetProduct(pId).Id;
                _cartRepo.AddCartProduct(p);
            }
            else
            {
                UpdateCartProduct(email, pId);
            }
        }