adding

apps/orders/api/views.py

@@ -0,0 +1,79 @@
+from rest_framework import generics, status
+from rest_framework.exceptions import NotFound, ValidationError
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.response import Response
+from rest_framework.views import APIView
+
+from apps.billing.permissions import HasActiveFeature
+from apps.orders.api.services import OrderStageService
+from apps.orders.models import Order, OrderStage, OrderStageLog
+
+from .serializers import OrderSerializer, OrderStageLogSerializer, OrderStageSerializer
+
+
+class _UserScopedListCreateView(generics.ListCreateAPIView):
+    permission_classes = [IsAuthenticated, HasActiveFeature]
+    feature_key = "orders"
+
+    def get_queryset(self):
+        return self.model.objects.filter(user=self.request.user)
+
+    def perform_create(self, serializer):
+        serializer.save(user=self.request.user)
+
+
+class _UserScopedDetailView(generics.RetrieveUpdateDestroyAPIView):
+    permission_classes = [IsAuthenticated, HasActiveFeature]
+    feature_key = "orders"
+
+    def get_queryset(self):
+        return self.model.objects.filter(user=self.request.user)
+
+
+class OrderStageListCreateView(_UserScopedListCreateView):
+    model = OrderStage
+    serializer_class = OrderStageSerializer
+
+
+class OrderStageDetailView(_UserScopedDetailView):
+    model = OrderStage
+    serializer_class = OrderStageSerializer
+
+
+class OrderListCreateView(_UserScopedListCreateView):
+    model = Order
+    serializer_class = OrderSerializer
+
+
+class OrderDetailView(_UserScopedDetailView):
+    model = Order
+    serializer_class = OrderSerializer
+
+
+class AdvanceOrderStageView(APIView):
+    """با هر بار زدن «مرحله‌ی بعد»، سفارش را به مرحله‌ی بعدیِ تعریف‌شده
+    می‌برد و طبق قالبِ همان مرحله برای مشتریِ همین سفارش پیامک می‌فرستد."""
+
+    permission_classes = [IsAuthenticated, HasActiveFeature]
+    feature_key = "orders"
+
+    def post(self, request, pk):
+        if not Order.objects.filter(pk=pk, user=request.user).exists():
+            raise NotFound("سفارش یافت نشد.")
+        extra_input_value = request.data.get("extra_input_value", "")
+        try:
+            order = OrderStageService.advance(request.user, pk, extra_input_value)
+        except Order.DoesNotExist:
+            raise NotFound("سفارش یافت نشد.")
+        except ValueError as exc:
+            raise ValidationError(str(exc))
+        return Response(OrderSerializer(order).data, status=status.HTTP_200_OK)
+
+
+class OrderStageLogListView(generics.ListAPIView):
+    serializer_class = OrderStageLogSerializer
+    permission_classes = [IsAuthenticated, HasActiveFeature]
+    feature_key = "orders"
+
+    def get_queryset(self):
+        return OrderStageLog.objects.filter(order_id=self.kwargs["pk"], order__user=self.request.user)