new invoice design

backend/order/invoice_generator.py

@@ -46,6 +46,13 @@ def generate_order_invoice(order_id):
             'final_price': item.price_after_special_discount(),
         })
     
+    # Resolve image paths for the template (absolute file paths for WeasyPrint)
+    import os
+    template_dir = os.path.join(settings.BASE_DIR, 'templates', 'order')
+    logo_path = os.path.join(template_dir, 'logo2.png')
+    logo_pattern_path = os.path.join(template_dir, 'logo-pattern.png')
+    qr_code_path = os.path.join(template_dir, 'qr-code.png')
+    
     # Use stored model fields for accuracy and consistency
     context = {
         'order': order,
@@ -66,13 +73,16 @@ def generate_order_invoice(order_id):
         'final_price': order.final_price or 0,  # Stored field: final price after all calculations
         'is_paid': order.is_paid,
         'status': order.get_status_display(),
+        'logo_path': logo_path,
+        'logo_pattern_path': logo_pattern_path,
+        'qr_code_path': qr_code_path,
     }
     
     # Render HTML template
-    html_string = render_to_string('order/invoice_order.html', context)
+    html_string = render_to_string('order/invoice_order2.html', context)
     
-    # Generate PDF
-    html = HTML(string=html_string, base_url=settings.STATIC_URL)
+    # Generate PDF - use template directory as base_url so images resolve correctly
+    html = HTML(string=html_string, base_url=template_dir)
     pdf_file = BytesIO()
     html.write_pdf(pdf_file)
     pdf_file.seek(0)
@@ -146,6 +156,13 @@ def generate_shop_order_invoice(shop_order_id):
     # Calculate subtotal (cart total before discounts)
     subtotal = shop_order.subtotal or 0
     
+    # Resolve image paths for the template (absolute file paths for WeasyPrint)
+    import os
+    template_dir = os.path.join(settings.BASE_DIR, 'templates', 'order')
+    logo_path = os.path.join(template_dir, 'logo2.png')
+    logo_pattern_path = os.path.join(template_dir, 'logo-pattern.png')
+    qr_code_path = os.path.join(template_dir, 'qr-code.png')
+    
     # Prepare context for the template
     context = {
         'shop_order': shop_order,
@@ -175,13 +192,16 @@ def generate_shop_order_invoice(shop_order_id):
         'is_paid': shop_order.is_paid,
         'status': shop_order.get_status_display(),
         'is_settled': shop_order.is_settled,
+        'logo_path': logo_path,
+        'logo_pattern_path': logo_pattern_path,
+        'qr_code_path': qr_code_path,
     }
     
     # Render HTML template
-    html_string = render_to_string('order/invoice_shop_order.html', context)
+    html_string = render_to_string('order/invoice_shop_order2.html', context)
     
-    # Generate PDF
-    html = HTML(string=html_string, base_url=settings.STATIC_URL)
+    # Generate PDF - use template directory as base_url so images resolve correctly
+    html = HTML(string=html_string, base_url=template_dir)
     pdf_file = BytesIO()
     html.write_pdf(pdf_file)
     pdf_file.seek(0)

backend/order/urls.py

@@ -16,7 +16,10 @@ urlpatterns = [
          CallbackView.as_view(), name='callback-gateway'),
     path('<int:pk>', OrderGetView.as_view(), name='order-get'),
     
-    # Invoice download endpoints
+    # User invoice download endpoint (DRF APIView)
+    path('invoice/<int:order_id>', UserOrderInvoiceView.as_view(), name='user-order-invoice'),
+    
+    # Admin invoice download endpoints
     path('invoice/order/<int:order_id>/download', download_order_invoice, name='download-order-invoice'),
     path('invoice/shop-order/<int:shop_order_id>/download', download_shop_order_invoice, name='download-shop-order-invoice'),
 ]

backend/order/views.py

@@ -517,6 +517,53 @@ from django.contrib.auth.decorators import login_required
 from .invoice_generator import generate_order_invoice, generate_shop_order_invoice
 
 
+class UserOrderInvoiceView(APIView):
+    """
+    API endpoint for authenticated users to download their own order invoice PDF.
+    Users can only download invoices for orders that belong to them.
+    """
+    permission_classes = [IsAuthenticated]
+
+    @extend_schema(
+        tags=["order invoice"],
+        description="Download PDF invoice for the authenticated user's order.",
+        responses={200: OpenApiTypes.BINARY},
+    )
+    def get(self, request, order_id):
+        from .models import OrderModel
+
+        try:
+            order = OrderModel.objects.get(pk=order_id)
+        except OrderModel.DoesNotExist:
+            return Response(
+                {'detail': 'سفارش مورد نظر یافت نشد'},
+                status=status.HTTP_404_NOT_FOUND,
+            )
+
+        if order.user != request.user:
+            return Response(
+                {'detail': 'شما اجازه دسترسی به این فاکتور را ندارید'},
+                status=status.HTTP_403_FORBIDDEN,
+            )
+
+        if not order.is_paid:
+            return Response(
+                {'detail': 'فاکتور فقط برای سفارش‌های پرداخت شده قابل دانلود است'},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        try:
+            pdf_file = generate_order_invoice(order_id)
+            response = HttpResponse(pdf_file.read(), content_type='application/pdf')
+            response['Content-Disposition'] = f'attachment; filename="invoice_{order_id}.pdf"'
+            return response
+        except Exception as e:
+            return Response(
+                {'detail': f'خطا در ایجاد فاکتور: {str(e)}'},
+                status=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            )
+
+
 @login_required
 def download_order_invoice(request, order_id):
     """
@@ -530,7 +577,7 @@ def download_order_invoice(request, order_id):
         pdf_file = generate_order_invoice(order_id)
         
         response = HttpResponse(pdf_file.read(), content_type='application/pdf')
-        response['Content-Disposition'] = f'attachment; filename="order_invoice_{order_id + 1000}.pdf"'
+        response['Content-Disposition'] = f'attachment; filename="order_invoice_{order_id}.pdf"'
         
         return response
     except ValueError as e: