private void SetupCheckout()
{
DatabaseCO5027Entities db = new DatabaseCO5027Entities();
string paymentId = Request.QueryString["paymentId"];
string payerId = Request.QueryString["payerId"];
string token = Request.QueryString["token"];
Order order = db.Orders.Single(o => o.PaymentId == paymentId);
if (String.IsNullOrEmpty(paymentId) || String.IsNullOrEmpty(payerId) || String.IsNullOrEmpty(token))
{
litConfirmMessage.Text = "<p>Payment aborted. You have not been charged. Please reorder the required products.</p>";
btnConfirmOrder.Visible = false;
db.Orders.Remove(order);
db.SaveChanges();
return;
}
litConfirmOrderDetails.Text = "<p>Order: " + order.Id + "</p>";
litConfirmOrderDetails.Text += "<p>Price: £" + order.TotalCost + "</p>";
litConfirmOrderDetails.Text += "<h3>Products:</h3>";
litConfirmOrderDetails.Text += "<div class=\"products\"><ul>";
foreach (var item in order.OrderedProducts)
{
litConfirmOrderDetails.Text += "<li>" + item.Product.Name + " (£" + ((decimal)item.Product.Price).ToString("0.00") + ")</li>";
}
litConfirmOrderDetails.Text += "</ul></div>";
}
protected void btnConfirmOrder_Click(object sender, EventArgs e)
{
DatabaseCO5027Entities db = new DatabaseCO5027Entities();
string paymentId = Request.QueryString["paymentId"];
string payerId = Request.QueryString["payerId"];
string token = Request.QueryString["token"];
Order order = db.Orders.Single(o => o.PaymentId == paymentId && o.PaymentToken == token);
PayPalConfirmation(paymentId, payerId);
order.PaymentId = paymentId;
order.PayerId = payerId;
order.AmountPaid = order.TotalCost;
var products = db.OrderedProducts.Where(op => op.OrderId == order.Id);
foreach (var product in products)
{
product.DownloadsAllowed += 5;
}
db.SaveChanges();
string customerId = User.Identity.GetUserId();
var customer = db.UserDetails.Single(c => c.UserId == customerId);
string customerName = customer.FirstName + " " + customer.Surname;
string customerEmailAddress = customer.Email;
SendEmailToAdmin(customer, order, products.ToList());
SendEmailToCustomer(customer, order, products.ToList());
Response.Redirect("~/user");
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
switch (Request.QueryString["action"])
{
case "confirm":
pnlBasket.Visible = false;
pnlCheckout.Visible = true;
SetupCheckout();
break;
case "cancel":
pnlBasket.Visible = false;
pnlCancel.Visible = true;
string token = Request.QueryString["token"];
DatabaseCO5027Entities db = new DatabaseCO5027Entities();
Order order = db.Orders.Single(o => o.PaymentToken == token);
db.Orders.Remove(order);
db.SaveChanges();
litCancelMessage.Text = "<p>Invalid payment. You have not been charged. Please reorder the required products.</p>";
break;
default:
SetupBasket();
break;
}
}
}
protected void btnContinue_Click(object sender, EventArgs e)
{
string customerId = User.Identity.GetUserId();
DatabaseCO5027Entities db = new DatabaseCO5027Entities();
var basket = db.Baskets.Where(b => b.CustomerId == customerId);
var order = new Order();
order.DateStamp = DateTime.Now;
order.CustomerId = customerId;
order.TotalCost = 0; // calculated in foreach loop
db.Orders.Add(order);
db.SaveChanges();
var orderId = order.Id;
decimal totalCost = 0;
var products = new List <OrderedProduct>();
foreach (var item in basket)
{
OrderedProduct orderedProduct = new OrderedProduct();
orderedProduct.OrderId = orderId;
orderedProduct.ProductId = item.ProductId;
orderedProduct.DownloadsAllowed = 0; // set once payment complete
db.OrderedProducts.Add(orderedProduct);
products.Add(orderedProduct);
totalCost += (decimal)item.Product.Price;
db.Baskets.Remove(item);
}
order.TotalCost = totalCost;
db.SaveChanges();
PayPalPayment(db, order, products);
}
protected void rptBasket_ItemCommand(object source, RepeaterCommandEventArgs e)
{
string idString = e.CommandArgument.ToString();
int id = int.Parse(idString);
DatabaseCO5027Entities db = new DatabaseCO5027Entities();
var basketItem = db.Baskets.Single(b => b.Id == id);
db.Baskets.Remove(basketItem);
db.SaveChanges();
SetupBasket();
}
protected void PayPalPayment(DatabaseCO5027Entities db, Order order, List <OrderedProduct> products)
{
string baseUrl = Request.Url.Scheme + "://" + Request.Url.Authority;
// ~~~~~~~~~~
// Following code inspired by PayPal, (2015) and Muncey, (2016).
// ~~~~~~~~~~
var config = ConfigManager.Instance.GetProperties();
var accessToken = new OAuthTokenCredential(config).GetAccessToken();
var apiContext = new APIContext(accessToken);
List <Item> items = new List <Item>();
foreach (OrderedProduct product in products)
{
Item item = new Item
{
name = product.Product.Name,
currency = "GBP",
price = ((decimal)product.Product.Price).ToString("0.00"),
quantity = "1",
sku = product.ProductId.ToString()
};
items.Add(item);
}
;
ItemList productsItemList = new ItemList
{
items = items
};
var payment = Payment.Create(apiContext, new Payment
{
intent = "sale",
payer = new Payer
{
payment_method = "paypal"
},
transactions = new List <Transaction>
{
new Transaction
{
description = "Order from StunningSnaps",
invoice_number = order.Id.ToString(),
amount = new Amount
{
currency = "GBP",
total = order.TotalCost.ToString("0.00"),
details = new Details
{
tax = "0",
shipping = "0",
subtotal = order.TotalCost.ToString("0.00")
}
},
item_list = productsItemList
}
},
redirect_urls = new RedirectUrls
{
return_url = baseUrl + ResolveUrl("~/checkout.aspx?action=confirm"),
cancel_url = baseUrl + ResolveUrl("~/checkout.aspx?action=cancel")
}
});
order.PaymentId = payment.id;
order.PaymentToken = payment.token;
db.SaveChanges();
foreach (var link in payment.links)
{
if (link.rel.ToLower().Trim().Equals("approval_url"))
{
Response.Redirect(link.href);
}
}
// ~~~~~~~~~~
// end of code inspired by PayPal, (2015) and Muncey, (2016).
// ~~~~~~~~~~
}