refactored webhook realted to coupon 3

manage_subscriptions/api/views.py

@@ -219,18 +219,8 @@ class StripeWebhookTest(APIView):
                 current_period_start=current_period_start,
                 current_period_end=current_period_end,
             )
-            transaction = payment_service.create_transaction()
-            try:
-                payment_service.process_event(transaction)
-                transaction.transaction_status = TransactionStatus.SUCCESS
-            except Exception as e:
-                transaction.transaction_status = TransactionStatus.FAIL
-                transaction.error_message = str(e)
-                logger.error(f"Transaction Error: {str(e)}")
-                raise e
-            finally:
-                transaction.save()
 
+            payment_service.process_event()
             webhook_event.status = "processed"
             webhook_event.processed_at = timezone.now()
             webhook_event.save()