auto recurring testing phase 12

manage_subscriptions/views.py

@@ -649,27 +649,51 @@ def validate_coupon(request):
     # Validating Coupon
     try:
         coupon = Coupon.objects.get(coupon_code=coupon_code)
+
         if not coupon.is_valid():
             return JsonResponse({"error": "Coupon is not valid."}, status=400)
+
+        # Check discount amount
         if coupon.discount_amount and coupon.discount_amount > subscription.amount:
             return JsonResponse(
                 {"error": "Coupon discount amount exceeds subscription amount."},
                 status=400,
             )
-        if (
-            coupon.discount_percentage
-            and (coupon.discount_percentage / Decimal("100")) * subscription.amount
-            > subscription.amount
-        ):
+
+        # Check discount percentage
+        if coupon.discount_percentage:
+            discount_amount = (
+                coupon.discount_percentage / Decimal("100")
+            ) * subscription.amount
+            if discount_amount > subscription.amount:
+                return JsonResponse(
+                    {
+                        "error": "Coupon discount percentage exceeds subscription amount."
+                    },
+                    status=400,
+                )
+
+        # Retrieving coupon from Stripe if applicable
+        if coupon.coupon_id:
+            try:
+                stripe_coupon = stripe.Coupon.retrieve(coupon.coupon_id)
+                return JsonResponse({"message": stripe_coupon}, status=200)
+            except stripe.error.InvalidRequestError:
+                return JsonResponse(
+                    {"error": f"Invalid coupon code: {coupon_code}"}, status=400
+                )
+            except stripe.error.StripeError as e:
+                return JsonResponse({"error": f"Stripe error: {str(e)}"}, status=400)
+        else:
             return JsonResponse(
-                {"error": "Coupon discount percentage exceeds subscription amount."},
+                {
+                    "error": "Coupon is either invalid, expired, or not associated with Stripe."
+                },
                 status=400,
             )
     except Coupon.DoesNotExist:
         return JsonResponse({"error": "Coupon not found."}, status=404)
 
-    return JsonResponse({"message": "Coupon is valid."}, status=200)
-
 
 @csrf_exempt
 @require_POST
@@ -722,7 +746,10 @@ def create_checkout_session(request):
                     )
             else:
                 return JsonResponse(
-                    {"error": "Invalid or expired coupon code."}, status=400
+                    {
+                        "error": "Either coupon is Invalid/Expired or coupon not related with stripe."
+                    },
+                    status=400,
                 )
         except Coupon.DoesNotExist:
             return JsonResponse({"error": "Coupon not found."}, status=404)