public async Task <bool> UpdatePaymentMethodAsync(ISubscriber subscriber, PaymentMethodType paymentMethodType,
string paymentToken)
{
if (subscriber == null)
{
throw new ArgumentNullException(nameof(subscriber));
}
if (subscriber.Gateway.HasValue && subscriber.Gateway.Value != GatewayType.Stripe)
{
throw new GatewayException("Switching from one payment type to another is not supported. " +
"Contact us for assistance.");
}
var createdCustomer = false;
Braintree.Customer braintreeCustomer = null;
string stipeCustomerSourceToken = null;
var stripeCustomerMetadata = new Dictionary <string, string>();
var stripePaymentMethod = paymentMethodType == PaymentMethodType.Card ||
paymentMethodType == PaymentMethodType.BankAccount;
var cardService = new CardService();
var bankSerice = new BankAccountService();
var customerService = new CustomerService();
Customer customer = null;
if (!string.IsNullOrWhiteSpace(subscriber.GatewayCustomerId))
{
customer = await customerService.GetAsync(subscriber.GatewayCustomerId);
if (customer.Metadata?.Any() ?? false)
{
stripeCustomerMetadata = customer.Metadata;
}
}
var hadBtCustomer = stripeCustomerMetadata.ContainsKey("btCustomerId");
if (stripePaymentMethod)
{
stipeCustomerSourceToken = paymentToken;
}
else if (paymentMethodType == PaymentMethodType.PayPal)
{
if (hadBtCustomer)
{
var pmResult = await _btGateway.PaymentMethod.CreateAsync(new Braintree.PaymentMethodRequest
{
CustomerId = stripeCustomerMetadata["btCustomerId"],
PaymentMethodNonce = paymentToken
});
if (pmResult.IsSuccess())
{
var customerResult = await _btGateway.Customer.UpdateAsync(
stripeCustomerMetadata["btCustomerId"], new Braintree.CustomerRequest
{
DefaultPaymentMethodToken = pmResult.Target.Token
});
if (customerResult.IsSuccess() && customerResult.Target.PaymentMethods.Length > 0)
{
braintreeCustomer = customerResult.Target;
}
else
{
await _btGateway.PaymentMethod.DeleteAsync(pmResult.Target.Token);
hadBtCustomer = false;
}
}
else
{
hadBtCustomer = false;
}
}
if (!hadBtCustomer)
{
var customerResult = await _btGateway.Customer.CreateAsync(new Braintree.CustomerRequest
{
PaymentMethodNonce = paymentToken,
Email = subscriber.BillingEmailAddress(),
Id = subscriber.BraintreeCustomerIdPrefix() + subscriber.Id.ToString("N").ToLower() +
Utilities.CoreHelpers.RandomString(3, upper: false, numeric: false),
CustomFields = new Dictionary <string, string>
{
[subscriber.BraintreeIdField()] = subscriber.Id.ToString()
}
});
if (!customerResult.IsSuccess() || customerResult.Target.PaymentMethods.Length == 0)
{
throw new GatewayException("Failed to create PayPal customer record.");
}
braintreeCustomer = customerResult.Target;
}
}
else
{
throw new GatewayException("Payment method is not supported at this time.");
}
if (stripeCustomerMetadata.ContainsKey("btCustomerId"))
{
if (braintreeCustomer?.Id != stripeCustomerMetadata["btCustomerId"])
{
var nowSec = Utilities.CoreHelpers.ToEpocSeconds(DateTime.UtcNow);
stripeCustomerMetadata.Add($"btCustomerId_{nowSec}", stripeCustomerMetadata["btCustomerId"]);
}
stripeCustomerMetadata["btCustomerId"] = braintreeCustomer?.Id;
}
else if (!string.IsNullOrWhiteSpace(braintreeCustomer?.Id))
{
stripeCustomerMetadata.Add("btCustomerId", braintreeCustomer.Id);
}
try
{
if (customer == null)
{
customer = await customerService.CreateAsync(new CustomerCreateOptions
{
Description = subscriber.BillingName(),
Email = subscriber.BillingEmailAddress(),
SourceToken = stipeCustomerSourceToken,
Metadata = stripeCustomerMetadata
});
subscriber.Gateway = GatewayType.Stripe;
subscriber.GatewayCustomerId = customer.Id;
createdCustomer = true;
}
if (!createdCustomer)
{
string defaultSourceId = null;
if (stripePaymentMethod)
{
if (paymentToken.StartsWith("btok_"))
{
var bankAccount = await bankSerice.CreateAsync(customer.Id, new BankAccountCreateOptions
{
SourceToken = paymentToken
});
defaultSourceId = bankAccount.Id;
}
else
{
var card = await cardService.CreateAsync(customer.Id, new CardCreateOptions
{
SourceToken = paymentToken,
});
defaultSourceId = card.Id;
}
}
foreach (var source in customer.Sources.Where(s => s.Id != defaultSourceId))
{
if (source is BankAccount)
{
await bankSerice.DeleteAsync(customer.Id, source.Id);
}
else if (source is Card)
{
await cardService.DeleteAsync(customer.Id, source.Id);
}
}
customer = await customerService.UpdateAsync(customer.Id, new CustomerUpdateOptions
{
Metadata = stripeCustomerMetadata,
DefaultSource = defaultSourceId
});
}
}
catch (Exception e)
{
if (braintreeCustomer != null && !hadBtCustomer)
{
await _btGateway.Customer.DeleteAsync(braintreeCustomer.Id);
}
throw e;
}
return(createdCustomer);
}
public async Task <bool> PreviewUpcomingInvoiceAndPayAsync(ISubscriber subscriber, string planId,
List <InvoiceSubscriptionItemOptions> subItemOptions, int prorateThreshold = 500)
{
var invoiceService = new InvoiceService();
var invoiceItemService = new InvoiceItemService();
var pendingInvoiceItems = invoiceItemService.ListAutoPaging(new InvoiceItemListOptions
{
CustomerId = subscriber.GatewayCustomerId
}).ToList().Where(i => i.InvoiceId == null);
var pendingInvoiceItemsDict = pendingInvoiceItems.ToDictionary(pii => pii.Id);
var upcomingPreview = await invoiceService.UpcomingAsync(new UpcomingInvoiceOptions
{
CustomerId = subscriber.GatewayCustomerId,
SubscriptionId = subscriber.GatewaySubscriptionId,
SubscriptionItems = subItemOptions
});
var itemsForInvoice = upcomingPreview.Lines?.Data?
.Where(i => pendingInvoiceItemsDict.ContainsKey(i.Id) || (i.Plan.Id == planId && i.Proration));
var invoiceAmount = itemsForInvoice?.Sum(i => i.Amount) ?? 0;
var invoiceNow = invoiceAmount >= prorateThreshold;
if (invoiceNow)
{
// Owes more than prorateThreshold on next invoice.
// Invoice them and pay now instead of waiting until next billing cycle.
Invoice invoice = null;
var createdInvoiceItems = new List <InvoiceItem>();
Braintree.Transaction braintreeTransaction = null;
try
{
foreach (var ii in itemsForInvoice)
{
if (pendingInvoiceItemsDict.ContainsKey(ii.Id))
{
continue;
}
var invoiceItem = await invoiceItemService.CreateAsync(new InvoiceItemCreateOptions
{
Currency = ii.Currency,
Description = ii.Description,
CustomerId = subscriber.GatewayCustomerId,
SubscriptionId = ii.SubscriptionId,
Discountable = ii.Discountable,
Amount = ii.Amount
});
createdInvoiceItems.Add(invoiceItem);
}
invoice = await invoiceService.CreateAsync(new InvoiceCreateOptions
{
Billing = Billing.SendInvoice,
DaysUntilDue = 1,
CustomerId = subscriber.GatewayCustomerId,
SubscriptionId = subscriber.GatewaySubscriptionId
});
var invoicePayOptions = new InvoicePayOptions();
var customerService = new CustomerService();
var customer = await customerService.GetAsync(subscriber.GatewayCustomerId);
if (customer != null)
{
if (customer.Metadata.ContainsKey("btCustomerId"))
{
invoicePayOptions.PaidOutOfBand = true;
var btInvoiceAmount = (invoiceAmount / 100M);
var transactionResult = await _btGateway.Transaction.SaleAsync(
new Braintree.TransactionRequest
{
Amount = btInvoiceAmount,
CustomerId = customer.Metadata["btCustomerId"],
Options = new Braintree.TransactionOptionsRequest
{
SubmitForSettlement = true,
PayPal = new Braintree.TransactionOptionsPayPalRequest
{
CustomField = $"{subscriber.BraintreeIdField()}:{subscriber.Id}"
}
},
CustomFields = new Dictionary <string, string>
{
[subscriber.BraintreeIdField()] = subscriber.Id.ToString()
}
});
if (!transactionResult.IsSuccess())
{
throw new GatewayException("Failed to charge PayPal customer.");
}
braintreeTransaction = transactionResult.Target;
await invoiceService.UpdateAsync(invoice.Id, new InvoiceUpdateOptions
{
Metadata = new Dictionary <string, string>
{
["btTransactionId"] = braintreeTransaction.Id,
["btPayPalTransactionId"] =
braintreeTransaction.PayPalDetails.AuthorizationId
}
});
}
}
await invoiceService.PayAsync(invoice.Id, invoicePayOptions);
}
catch (Exception e)
{
if (braintreeTransaction != null)
{
await _btGateway.Transaction.RefundAsync(braintreeTransaction.Id);
}
if (invoice != null)
{
await invoiceService.DeleteAsync(invoice.Id);
// Restore invoice items that were brought in
foreach (var item in pendingInvoiceItems)
{
var i = new InvoiceItemCreateOptions
{
Currency = item.Currency,
Description = item.Description,
CustomerId = item.CustomerId,
SubscriptionId = item.SubscriptionId,
Discountable = item.Discountable,
Metadata = item.Metadata,
Quantity = item.Quantity,
UnitAmount = item.UnitAmount
};
await invoiceItemService.CreateAsync(i);
}
}
else
{
foreach (var ii in createdInvoiceItems)
{
await invoiceItemService.DeleteAsync(ii.Id);
}
}
throw e;
}
}
return(invoiceNow);
}