public async Task Details()

in Hands-on lab/lab-files/src/src/PartsUnlimitedWebsite/Areas/Admin/Controllers/OrdersController.cs [27:61]

• 30 lines of code
• 3 McCabe index (conditional complexity)

        public async Task<IActionResult> Details(int? id)
        {
            if (id == null)
            {
                return RedirectToAction("Index", new { invalidOrderSearch = Request.Query["id"] });
            }

            var order = await _ordersQuery.FindOrderAsync(id.Value);

            if (order == null)
            {
                return RedirectToAction("Index", new { invalidOrderSearch = id.ToString() });
            }
            var itemsCount = order.OrderDetails.Sum(x => x.Quantity);
            var subTotal = order.OrderDetails.Sum(x => x.Quantity * x.Product.Price);
            var shipping = itemsCount * (decimal)5.00;
            var tax = (subTotal + shipping) * (decimal)0.05;
            var total = subTotal + shipping + tax;

            var costSummary = new OrderCostSummary
            {
                CartSubTotal = subTotal.ToString("C"),
                CartShipping = shipping.ToString("C"),
                CartTax = tax.ToString("C"),
                CartTotal = total.ToString("C")
            };

            var viewModel = new OrderDetailsViewModel
            {
                OrderCostSummary = costSummary,
                Order = order
            };

            return View(viewModel);
        }