/// <summary>
/// Saves/updates the payment method for the member, at the remote gateway,
/// updates in place, and returns, the ID/token
/// </summary>
/// <returns>The saved payment method ID/token</returns>
/// <param name="paymentData"></param>
private static string CollectPaymentMethod(LcPayment.InputPaymentMethod paymentData, int memberUserID)
{
// On emulation, discard other steps, just generate
// a fake ID
if (LcPayment.TESTING_EMULATEBRAINTREE)
{
paymentData.paymentMethodID = LcPayment.CreateFakePaymentMethodId();
return(paymentData.paymentMethodID);
}
// Standard way
var gateway = LcPayment.NewBraintreeGateway();
// The input paymentID must be one generated by Braintree, reset any (malicious?) attempt
// to provide a special temp ID generated by this method
if (paymentData.IsTemporaryID())
{
paymentData.paymentMethodID = null;
}
// Find or create Customer on Braintree (for membership subscriptions, the member
// is a customer of Loconomics).
var client = LcPayment.GetOrCreateBraintreeCustomer(LcPayment.Membership.GetFeePaymentUserId(memberUserID));
// Quick way for saved payment method that does not needs to be updated
if (paymentData.IsSavedID())
{
// Just double check payment exists to avoid mistake/malicious attempts:
if (!paymentData.ExistsOnVault())
{
// Since we have not input data to save, we can only throw an error
// invalidSavedPaymentMethod
throw new ConstraintException("[[[Chosen payment method has expired]]]");
}
}
else
{
// Creates or updates a payment method with the given data
// Must we set an ID as temporary to prevent it appears as a saved payment method?
//paymentData.paymentMethodID = LcPayment.TempSavedCardPrefix + ASP.LcHelpers.Channel + "_paymentPlan";
// Save on Braintree secure Vault
// It updates the paymentMethodID if a new one was generated
var saveCardError = paymentData.SaveInVault(client.Id);
if (!String.IsNullOrEmpty(saveCardError))
{
// paymentDataError
throw new ConstraintException(saveCardError);
}
}
return(paymentData.paymentMethodID);
}
public static UserPaymentPlan CreateSubscription(
int userID,
SubscriptionPlan plan,
LcPayment.InputPaymentMethod paymentMethod)
{
// Prepare payment method (in the remote gateway), get its ID
var paymentMethodToken = CollectPaymentMethod(paymentMethod, userID);
// Prepare initial object
var userPlan = new UserPaymentPlan()
{
userID = userID,
paymentPlan = plan,
subscriptionEndDate = null
};
// Create subscription at gateway and set details
// Wrapped in a try-catch to implement a transaction-like operation:
// if something fail after succesfully create the Braintree subscription, like not being
// able to save details on database, we need to 'rollback' the subscription, asking for removal
// to Braintree
string generatedSubscriptionId = null;
var paymentPlan = new LcPayment.Membership();
try
{
if (LcPayment.TESTING_EMULATEBRAINTREE)
{
userPlan.subscriptionID = LcPayment.CreateFakeSubscriptionId();
userPlan.paymentPlanLastChangedDate = DateTimeOffset.Now;
userPlan.nextPaymentDueDate = DateTimeOffset.Now.Add(new TimeSpan(365, 0, 0, 0));
userPlan.nextPaymentAmount = 99;
userPlan.firstBillingDate = DateTimeOffset.Now;
userPlan.planStatus = "ACTIVE";
userPlan.daysPastDue = 0;
}
else
{
// Start creating the subscription at the payment gateway
var trialEndDate = GetUserTrialEndDate(userID);
// Create the subscription at the payment gateway
// It returns the subscription object with a correct ID on success, otherwise an exception is thrown
var subscription = paymentPlan.CreateSubscription(plan, paymentMethodToken, trialEndDate);
generatedSubscriptionId = subscription.Id;
userPlan.subscriptionID = subscription.Id;
userPlan.paymentPlanLastChangedDate = subscription.UpdatedAt.Value;
userPlan.nextPaymentDueDate = subscription.NextBillingDate;
userPlan.nextPaymentAmount = subscription.NextBillAmount;
userPlan.firstBillingDate = subscription.FirstBillingDate.Value;
userPlan.planStatus = subscription.Status.ToString();
userPlan.daysPastDue = subscription.DaysPastDue ?? 0;
}
// Fill payment method info
var info = LcPayment.PaymentMethodInfo.Get(paymentMethodToken);
userPlan.paymentExpiryDate = info.ExpirationDate;
userPlan.paymentMethodToken = paymentMethodToken;
userPlan.paymentMethod = info.Description;
// Persist subscription on database
Set(userPlan);
}
catch (Exception ex)
{
// Rollback
if (generatedSubscriptionId != null)
{
// Rollback subscription at Payment Gateway
paymentPlan.CancelSubscription(generatedSubscriptionId);
}
// The exception needs to be communicated anyway, so re-throw
throw new Exception("[[[Failed subscription]]]", ex);
}
return(userPlan);
}