Payment events: one central payment_result row for every path (callback, reconcile, Bazaar, renewal, 100% code), discount_applied, no duplicate order_created; Bazaar token never stored

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

payment/services.py

@@ -18,7 +18,6 @@ from rest_framework.exceptions import APIException
 from statuslog.signals import status_changed
 
 from . import events
-
 from .models import Order, Transaction
 from .providers import PROVIDERS, provider_for
 
@@ -111,6 +110,7 @@ def create_order(*, user_id: int, amount: int, currency: str = 'IRT',
     from subscription.models import Plan
 
     plan = Plan.objects.filter(pk=plan_id).first() if plan_id else None
+    created = False
     try:
         with db_transaction.atomic():
             order = Order.objects.create(
@@ -127,6 +127,7 @@ def create_order(*, user_id: int, amount: int, currency: str = 'IRT',
                 bazaar_product_sku=bazaar_product_sku,
                 idempotency_key=idempotency_key,
             )
+            created = True
     except IntegrityError:
         # درخواست هم‌زمان دیگری با همین کلید زودتر ساخت.
         order = Order.objects.filter(idempotency_key=idempotency_key).first()
@@ -137,8 +138,9 @@ def create_order(*, user_id: int, amount: int, currency: str = 'IRT',
             subscription_id=subscription_id, plan_id=plan_id, provider=provider,
         )
 
-    events.record('order_created', order=order, plan_id=plan_id, amount=amount, currency=currency,
-                  duration_days=order.duration_days, sku=bazaar_product_sku)
+    if created:
+        events.record('order_created', order=order, plan_id=plan_id, amount=amount, currency=currency,
+                      duration_days=order.duration_days, sku=bazaar_product_sku)
     # بازار paymentUrl ندارد (اپ با Poolakey می‌خرد)؛ زرین‌پال آدرسِ PaymentRedirectView را دارد (providers.py).
     payment_url = provider_for(order.provider).payment_url(order)
     return order, payment_url
@@ -223,6 +225,11 @@ def apply_order_payment_result(*, order: Order, gateway: str, gateway_ref_id: st
             order.id, order.user_id, gateway, event, old_status, new_status,
             gateway_ref_id or '-', is_duplicate,
         )
+        # همان نتیجه در دفترِ خرید (به ۲۴۷ هم می‌رود). همه‌ی مسیرها از این‌جا می‌گذرند: کال‌بک، بازسنجی،
+        # بازار، تمدیدِ بازار، کدِ ۱۰۰٪. رفرنسِ بازار خودِ توکنِ خرید است و در دفتر نمی‌رود.
+        events.record('payment_result', order=order, via=event, gateway=gateway,
+                      old_status=old_status, new_status=new_status, ignored=is_duplicate,
+                      ref_id=gateway_ref_id if gateway == 'zarinpal' else '')
         newly_paid = new_status == 'paid' and not already_paid and not is_duplicate
         if newly_paid:
             if order.subscription_id: