fixed accepted order status

src/app/api/order/services.py

@@ -49,6 +49,9 @@ class OrderService:
         except common_exc.NotFoundException as e:
             raise http_exc.HTTPBadRequestException(detail=str(e))
 
+        if order.status != Order.StatusEnum.IN_PROCESSING:
+            raise http_exc.HTTPBadRequestException(detail='Order must be in IN PROCESSING status to be completed')
+
         order.status = Order.StatusEnum.CONFIRMED
         await order.save()