public ViewResult Checkout(Cart cart, ShippingDetails shippingDetails)
{
if (cart.Lines.Count() == 0)
{
ModelState.AddModelError(string.Empty, "Your shopping cart is empty");
}
if (ModelState.IsValid)
{
orderProcessor.OrderProcess(cart, shippingDetails);
cart.Clear();
return(View("Completed"));
}
else
{
return(View(shippingDetails));
}
}