/// <summary>
/// Purchases one or more partner offers.
/// </summary>
/// <param name="order">The order to execute.</param>
/// <returns>A transaction result which summarizes its outcome.</returns>
public async Task <TransactionResult> PurchaseAsync(OrderViewModel order)
{
// use the normalizer to validate the order.
OrderNormalizer orderNormalizer = new OrderNormalizer(ApplicationDomain, order);
order = await orderNormalizer.NormalizePurchaseSubscriptionOrderAsync().ConfigureAwait(false);
// build the purchase line items.
List <PurchaseLineItem> purchaseLineItems = new List <PurchaseLineItem>();
foreach (OrderSubscriptionItemViewModel orderItem in order.Subscriptions)
{
string offerId = orderItem.OfferId;
int quantity = orderItem.Quantity;
purchaseLineItems.Add(new PurchaseLineItem(offerId, quantity));
}
// associate line items in order to partner offers.
IEnumerable <PurchaseLineItemWithOffer> lineItemsWithOffers = await AssociateWithPartnerOffersAsync(purchaseLineItems).ConfigureAwait(false);
ICollection <IBusinessTransaction> subTransactions = new List <IBusinessTransaction>();
// prepare payment authorization
AuthorizePayment paymentAuthorization = new AuthorizePayment(PaymentGateway);
subTransactions.Add(paymentAuthorization);
BrandingConfiguration portalBranding = await ApplicationDomain.Instance.PortalBranding.RetrieveAsync().ConfigureAwait(false);
// build the Partner Center order and pass it to the place order transaction
Order partnerCenterPurchaseOrder = BuildPartnerCenterOrder(lineItemsWithOffers, portalBranding.BillingCycle);
PlaceOrder placeOrder = new PlaceOrder(
ApplicationDomain.PartnerCenterClient.Customers.ById(CustomerId),
partnerCenterPurchaseOrder);
subTransactions.Add(placeOrder);
// configure a transaction to save the new resulting subscriptions and purchases into persistence
PersistNewlyPurchasedSubscriptions persistSubscriptionsAndPurchases = new PersistNewlyPurchasedSubscriptions(
CustomerId,
ApplicationDomain.CustomerSubscriptionsRepository,
ApplicationDomain.CustomerPurchasesRepository,
() => new Tuple <Order, IEnumerable <PurchaseLineItemWithOffer> >(placeOrder.Result, lineItemsWithOffers));
subTransactions.Add(persistSubscriptionsAndPurchases);
// configure a capture payment transaction and let it read the auth code from the payment authorization output
CapturePayment capturePayment = new CapturePayment(PaymentGateway, () => paymentAuthorization.Result);
subTransactions.Add(capturePayment);
// build an aggregated transaction from the previous steps and execute it as a whole
await RunAggregatedTransaction(subTransactions).ConfigureAwait(false);
return(new TransactionResult(persistSubscriptionsAndPurchases.Result, DateTime.UtcNow));
}
