public void ProcessOrder(OrderData orderData)
{
try
{
using (TransactionScope scope = new TransactionScope())
{
Customer customer = _StoreRepository.GetCustomerByEmail(orderData.CustomerEmail);
if (customer == null)
{
throw new ApplicationException(string.Format("No customer on file with email {0}.", orderData.CustomerEmail));
}
foreach (OrderLineItemData lineItem in orderData.LineItems)
{
if (_CommerceEvents.OrderItemProcessed != null)
{
OrderItemProcessedEventArgs args = new OrderItemProcessedEventArgs(customer, lineItem, _StoreRepository);
_CommerceEvents.OrderItemProcessed(args);
if (args.Cancel)
{
throw new ApplicationException(args.MessageText);
}
}
Product product = _StoreRepository.Products.Where(item => item.Sku == lineItem.Sku).FirstOrDefault();
if (product == null)
{
throw new ApplicationException(string.Format("Sku {0} not found in store inventory.", lineItem.Sku));
}
Inventory inventoryOnHand = _StoreRepository.ProductInventory.Where(item => item.Sku == lineItem.Sku).FirstOrDefault();
if (inventoryOnHand == null)
{
throw new ApplicationException(string.Format("Error attempting to determine on-hand inventory quantity for product {0}.", lineItem.Sku));
}
if (inventoryOnHand.QuantityInStock < lineItem.Quantity)
{
throw new ApplicationException(string.Format("Not enough quantity on-hand to satisfy product {0} purchase of {1} units.", lineItem.Sku, lineItem.Quantity));
}
inventoryOnHand.QuantityInStock -= lineItem.Quantity;
Console.WriteLine("Inventory for product {0}({2}) reduced by {1} units at {3}.", lineItem.Sku, lineItem.Quantity, product.Description, DateTime.Now.ToString());
}
// Update customer records with purchase
foreach (OrderLineItemData lineItem in orderData.LineItems)
{
for (int i = 0; i < lineItem.Quantity; i++)
{
customer.Purchases.Add(new PurchasedItem()
{
Sku = lineItem.Sku, PurchasePrice = lineItem.PurchasePrice, PurchasedOn = DateTime.Now
});
}
Console.WriteLine("Added {0} unit(s) or product {1} to customer's purchase history.", lineItem.Quantity, lineItem.Sku);
}
// Process customer credit card
double amount = 0;
foreach (OrderLineItemData lineItem in orderData.LineItems)
{
amount += (lineItem.PurchasePrice * lineItem.Quantity);
}
bool paymentSuccess = _PaymentProcessor.ProcessCreditCard(customer.Name, orderData.CreditCard, orderData.ExpirationDate, amount);
if (!paymentSuccess)
{
throw new ApplicationException(string.Format("Credit card {0} could not be processed.", orderData.CreditCard));
}
// Send invoice email
_Mailer.SendInvoiceEmail(orderData);
scope.Complete();
}
}
catch (Exception)
{
_Mailer.SendRejectionEmail(orderData);
throw;
}
}
public void Initialize(CommerceEvents events, NameValueCollection config)
{
events.AdjustOrder += args =>
{
foreach (var lineItem in args.OrderData.LineItems)
{
#region 1 - Check for promotion
if (events.OrderItemProcessed != null)
{
var e = new OrderItemProcessedEventArgs(args.Customer, lineItem, null);
events.OrderItemProcessed(e);
if (e.Cancel)
{
// do something important
throw new ApplicationException(e.Message);
}
}
#endregion
#region 2 - Get product
var product =
args.StoreRepository.Products.FirstOrDefault(item => item.Sku == lineItem.Sku);
if (product == null)
{
throw new ApplicationException($"Sku {lineItem.Sku} not found in store inventory.");
}
#endregion
#region 3 - Get line item by sku
var inventoryOnHand =
args.StoreRepository.ProductInventory.FirstOrDefault(
item => item.Sku == lineItem.Sku);
if (inventoryOnHand == null)
{
throw new ApplicationException(
$"Error attempting to determine on-hand inventory quantity for product {lineItem.Sku}.");
}
#endregion
#region 4 - Check if line item in stock
if (inventoryOnHand.QuantityInStock < lineItem.Quantity)
{
throw new ApplicationException(
$"Not enough quantity on-hand to satisfy product {lineItem.Sku} purchase of {lineItem.Quantity} units.");
}
#endregion
#region 5 - Change stock of the line item
inventoryOnHand.QuantityInStock -= lineItem.Quantity;
Console.WriteLine(
$"\tInventory for product {lineItem.Sku} reduced by {lineItem.Quantity} units.");
Console.WriteLine();
#endregion
}
};
}
