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);
}
