feat(payment): Add gateway link renewal method

Author: AlirezaYousefpourM

mono/acm/settings.py

@@ -284,4 +284,5 @@
 SKYROOM_ROOMID = env("SKYROOM_ROOMID", default="")
 
 # Competition
-COMPETITION_APPROVAL_REDIRECT_URL = env("COMPETITION_APPROVAL_REDIRECT_URL", default="https://aut-icpc.ir/DAMN")
+COMPETITION_APPROVAL_REDIRECT_URL = env("COMPETITION_APPROVAL_REDIRECT_URL", default="https://aut-icpc.ir/DAMN")
+PAYMENT_EMAIL_LINK_BASE_URL = env("PAYMENT_EMAIL_LINK_BASE_URL", default="")

mono/competitions/services.py

@@ -302,7 +302,7 @@ def backoffice_approve_request(tr: TeamRequest) -> TeamRequest:
             status_code=409,
         )
 
-    tr.payment_link = result.url
+    tr.payment_link = f"{settings.PAYMENT_EMAIL_LINK_BASE_URL}?authority={result.authority}"
     tr.status = TeamRequest.Status.PENDING_PAYMENT
     tr.save(update_fields=["payment_link", "status"])
     send_email_with_custom_template(

mono/payment/serializers.py

@@ -7,4 +7,11 @@ class VerifySerializer(serializers.Serializer):
 class PaymentSerializer(serializers.ModelSerializer):
     class Meta:
         model = Payment
-        fields = ("id","status","authority","ref_id","amount","zarinpal_code","zarinpal_message","target_type","target_id")
+        fields = ("id","status","authority","ref_id","amount","zarinpal_code","zarinpal_message","target_type","target_id")
+
+
+class StartPaymentSerializer(serializers.Serializer):
+    authority = serializers.CharField()
+
+    class Meta:
+        fields = ("authority",)

mono/payment/services.py

@@ -26,6 +26,7 @@
 class StartPayResult:
     url: str
     payment: Payment
+    authority: str
 
 
 # ---- Helpers ----
@@ -198,7 +199,7 @@ def initiate_payment_for_target(
         metadata={"fee_type": d.get("fee_type"), "fee": d.get("fee"), **(extra_metadata or {})},
     )
     startpay_url = f"https://payment.zarinpal.com/pg/StartPay/{authority}"
-    return StartPayResult(url=startpay_url, payment=pay)
+    return StartPayResult(url=startpay_url, payment=pay, authority=authority)
 
 
 @transaction.atomic
@@ -275,3 +276,27 @@ def verify_by_authority(*, user: User, authority: str) -> Payment:
         pass
 
     return p
+
+def startpay(authority: str) -> str:
+    current_payment = Payment.objects.filter(authority=authority).last()
+    if not current_payment:
+        raise CustomAPIException(
+            code=EC.PAY_NOT_FOUND_FOR_USER,
+            message="Payment not found for this user/authority",
+            status_code=404)
+    try:
+        new_payment = initiate_payment_for_target(
+            user=current_payment.user,
+            target_type=current_payment.target_type,
+            target_id=current_payment.target_id,
+            amount=current_payment.amount,
+            description=current_payment.description,
+        )
+    except Exception as e:
+        raise CustomAPIException(
+            message=f"Failed to initiate payment: {e}",
+            code=EC.COMP_PAYMENT_INIT_FAILED,
+            status_code=409
+        )
+    return new_payment.url
+

mono/payment/urls.py

@@ -1,7 +1,8 @@
 from django.urls import path
-from .views import VerifyPaymentView, CallbackView
+from .views import VerifyPaymentView, CallbackView, StartpaymentView
 
 urlpatterns = [
     path("verify/", VerifyPaymentView.as_view()),
     path("callback/", CallbackView.as_view()),
+    path("startpay/", StartpaymentView.as_view())
 ]

mono/payment/views.py

@@ -9,9 +9,10 @@
 
 from .serializers import (
     VerifySerializer,
-    PaymentSerializer,
+    PaymentSerializer, StartPaymentSerializer,
 )
-from .services import verify_by_authority
+from .services import verify_by_authority, startpay
+
 
 class VerifyPaymentView(APIView):
     permission_classes = [permissions.IsAuthenticated]
@@ -43,3 +44,15 @@ def get(self, request):
         authority = request.GET.get("Authority")
         url = f"{settings.PAYMENT_FRONTEND_RETURN}?authority={authority}" if authority else settings.PAYMENT_FRONTEND_RETURN
         return HttpResponseRedirect(url)
+
+
+class StartpaymentView(APIView):
+    permission_classes = []
+    @extend_schema(
+        parameters=[StartPaymentSerializer],
+        responses={302: OpenApiResponse(description="Redirects to new payment page")}
+    )
+    def get(self, request):
+        authority = request.GET.get("authority")
+        redirection_url = startpay(authority)
+        return HttpResponseRedirect(redirection_url)