/// <returns>A task that represents the asynchronous operation</returns>
protected virtual async Task ProcessPaymentAsync(string orderNumber, string ipnInfo, PaymentStatus newPaymentStatus, decimal mcGross, string transactionId)
{
Guid orderNumberGuid;
try
{
orderNumberGuid = new Guid(orderNumber);
}
catch
{
orderNumberGuid = Guid.Empty;
}
var order = await _orderService.GetOrderByGuidAsync(orderNumberGuid);
if (order == null)
{
await _logger.ErrorAsync("Paytm IPN. Order is not found", new NopException(ipnInfo));
return;
}
//order note
await _orderService.InsertOrderNoteAsync(new OrderNote
{
OrderId = order.Id,
Note = ipnInfo,
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
//validate order total
if ((newPaymentStatus == PaymentStatus.Authorized || newPaymentStatus == PaymentStatus.Paid) && !Math.Round(mcGross, 2).Equals(Math.Round(order.OrderTotal, 2)))
{
var errorStr = $"Paytm IPN. Returned order total {mcGross} doesn't equal order total {order.OrderTotal}. Order# {order.Id}.";
//log
await _logger.ErrorAsync(errorStr);
//order note
await _orderService.InsertOrderNoteAsync(new OrderNote
{
OrderId = order.Id,
Note = errorStr,
DisplayToCustomer = false,
CreatedOnUtc = DateTime.UtcNow
});
return;
}
switch (newPaymentStatus)
{
case PaymentStatus.Authorized:
if (_orderProcessingService.CanMarkOrderAsAuthorized(order))
{
await _orderProcessingService.MarkAsAuthorizedAsync(order);
}
break;
case PaymentStatus.Paid:
if (_orderProcessingService.CanMarkOrderAsPaid(order))
{
order.AuthorizationTransactionId = transactionId;
await _orderService.UpdateOrderAsync(order);
await _orderProcessingService.MarkOrderAsPaidAsync(order);
}
break;
case PaymentStatus.Refunded:
var totalToRefund = Math.Abs(mcGross);
if (totalToRefund > 0 && Math.Round(totalToRefund, 2).Equals(Math.Round(order.OrderTotal, 2)))
{
//refund
if (_orderProcessingService.CanRefundOffline(order))
{
await _orderProcessingService.RefundOfflineAsync(order);
}
}
else
{
//partial refund
if (_orderProcessingService.CanPartiallyRefundOffline(order, totalToRefund))
{
await _orderProcessingService.PartiallyRefundOfflineAsync(order, totalToRefund);
}
}
break;
case PaymentStatus.Voided:
if (_orderProcessingService.CanVoidOffline(order))
{
await _orderProcessingService.VoidOfflineAsync(order);
}
break;
}
}