cart item clear and apply discount view

backend/order/urls.py

@@ -1,11 +1,13 @@
 from django.conf.urls.static import static
 from django.contrib import admin
 from django.urls import path, include
-from .views import CartItemViews, CartView, OrderlistView
+from .views import CartItemViews, CartView, OrderlistView, CartItemClear, ApplyDiscountView
 
 urlpatterns = [
-    path('list', OrderlistView.as_view(), name='order-list'),
+    path('all', OrderlistView.as_view(), name='order-list'),
     path('cart', CartView.as_view()),
+    path('cart/discount', ApplyDiscountView.as_view()),
+    path('cart/all', CartItemClear.as_view()),
     path('cart/item/<int:pk>', CartItemViews.as_view(), name='change-item-cart'),
     # path('payment', CartView.as_view()),
     # path('', CartView.as_view()),

backend/order/views.py

@@ -7,7 +7,7 @@ from rest_framework.permissions import IsAuthenticated
 from .serializers import *
 # from cart.models import 
 from rest_framework import status
-from .models import OrderItemModel, OrderModel
+from .models import OrderItemModel, OrderModel, DiscountCode
 try:
     pass
 except DiscountNotAvailableError:
@@ -24,6 +24,36 @@ pay
 
 
 
+class ApplyDiscountView(APIView):
+    serializer_class = DiscountCodeSerializer
+    permission_classes = [IsAuthenticated]
+    def post(self, request):
+        cart_order, created = OrderModel.objects.get_or_create(
+            user=request.user,
+            status='CART'
+        )
+        discount_code = get_object_or_404(DiscountCode, code=request.data.get('code'))
+        
+        if not discount_code.is_valid():
+            return Response({'detail': discount_code.not_valid_reason()}, status=status.HTTP_400_BAD_REQUEST)
+        cart_order.discount_code = discount_code
+        cart_order.save()
+        return Response({'detail': 'کد تخفیف با موفقیت اعمال شد'}, status=status.HTTP_200_OK)
+
+
+
+class CartItemClear(APIView):
+    permission_classes = [IsAuthenticated]
+    serializer_class = OrderItemSerailzier
+    def delete(self, request):
+        cart_order, created = OrderModel.objects.get_or_create(
+            user=request.user,
+            status='CART'
+        )
+        cart_order.items.all().delete()
+        return Response({'detail': f'سبد خرید با موفقیت خالی شد'}, status=status.HTTP_204_NO_CONTENT)
+
+
 class CartItemViews(APIView):
     permission_classes = [IsAuthenticated]
     serializer_class = OrderItemSerailzier