from apps.shop.models import Order as OrderModel
from rest_framework.views import APIView
from rest_framework import serializers
from utils.get_user_workspace import get_user_workspace_uuid, get_user_workspace
from utils.get_cuser_role import get_cuser_role_uuid
from rest_framework.response import Response
from rest_framework import status
from apps.shop.services import *
from apps.shop.selectors import *
from rest_framework import generics
from apps.customer.models import Customer as CustomerModel
from rest_framework.permissions import IsAuthenticated
from utils import custom_permissions


class OrderCreateApi(APIView):

    permission_classes = (IsAuthenticated, custom_permissions.WorkspaceAdminPermission)

    class InputSerializer(serializers.Serializer):
        responsible_group_id = serializers.IntegerField(required=True)
        customer_id = serializers.IntegerField(required=True)
        total_amount = serializers.DecimalField(max_digits=20, decimal_places=2)
        factor_type = serializers.IntegerField(required=True)
        factor_status = serializers.IntegerField(required=True)

    class OutputSerializer(serializers.ModelSerializer):
        class Meta:
            model = OrderModel
            exclude = ('sys_ws', )

    def post(self, request):
        serializer = self.InputSerializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        user_workspace = get_user_workspace(request)

        order_obj = create_order(**serializer.validated_data, workspace=user_workspace)

        output = self.OutputSerializer(order_obj)

        return Response(data=output.data, status=status.HTTP_201_CREATED)


class OrderAndItemCreateApi(APIView):

    permission_classes = (IsAuthenticated, custom_permissions.WorkspaceCustomerPermission)

    class InputSerializer(serializers.Serializer):
        items = serializers.CharField(required=True)

    class OutputSerializer(serializers.ModelSerializer):
        class Meta:
            model = OrderModel
            exclude = ('sys_ws', )

    def post(self, request):
        serializer = self.InputSerializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        user_workspace = get_user_workspace(request)

        cuser_role_uuid = get_cuser_role_uuid(request)

        try:
            customer_obj = CustomerModel.objects.get(cuser_role__uuid=cuser_role_uuid)
        except Exception as exp:
            raise exceptions.ValidationError({'error': f'customer obj not found: {exp}'})

        order_obj = create_order_and_items(**serializer.validated_data, customer=customer_obj, workspace=user_workspace)
        clean_cart(cuser_role_uuid=cuser_role_uuid,workspace_uuid=user_workspace.uuid)

        output = self.OutputSerializer(order_obj)

        return Response(data=output.data, status=status.HTTP_201_CREATED)


class OrderRetrieveApi(APIView):

    permission_classes = (IsAuthenticated, custom_permissions.WorkspaceCustomerPermission)

    class OutputSerializer(serializers.ModelSerializer):
        class Meta:
            model = OrderModel
            exclude = ('sys_ws', )

    def get(self, request, order_id):
        user_workspace_uuid = get_user_workspace_uuid(request=request)
        cuser_role_uuid = get_cuser_role_uuid(request=request)
        request_user = request.user

        order_obj = retrieve_order(cuser_role_uuid=cuser_role_uuid, order_id=order_id, workspace_uuid=user_workspace_uuid)

        output = self.OutputSerializer(order_obj)

        return Response(data=output.data, status=status.HTTP_200_OK)


class OrderUpdateApi(APIView):

    class InputSerializer(serializers.Serializer):
        responsible_group_id = serializers.IntegerField(required=False)
        customer_id = serializers.IntegerField(required=False)
        total_amount = serializers.DecimalField(max_digits=20, decimal_places=2, required=False)
        factor_type = serializers.IntegerField(required=False)
        factor_status = serializers.IntegerField(required=False)

    class OutputSerializer(serializers.ModelSerializer):
        class Meta:
            model = OrderModel
            exclude = ('sys_ws', )

    def patch(self, request, order_id):
        serializer = self.InputSerializer(data=request.data)
        serializer.is_valid(raise_exception=True)

        user_workspace_uuid = get_user_workspace_uuid(request)
        order_obj = update_order(order_id=order_id, **serializer.validated_data, workspace_uuid=user_workspace_uuid)

        output = self.OutputSerializer(order_obj)

        return Response(data=output.data, status=status.HTTP_200_OK)


class OrderDeleteApi(APIView):

    def delete(self, request, order_id: int):

        user_workspace_uuid = get_user_workspace_uuid(request=request)
        order_obj = delete_order(order_id=order_id, workspace_uuid=user_workspace_uuid)

        output = {
            'order_id': order_id,
            'message': 'deleted successfully'
        }

        return Response(data=output, status=status.HTTP_200_OK)


class OrderListApi(generics.ListAPIView):

    class OutputSerializer(serializers.ModelSerializer):
        class Meta:
            model = OrderModel
            exclude = ('sys_ws', )

    serializer_class = OutputSerializer

    def get_queryset(self):
        cuser_role_uuid = get_cuser_role_uuid(request=self.request)
        user_workspace_uuid = get_user_workspace_uuid(request=self.request)

        return list_order(cuser_role_uuid=cuser_role_uuid, workspace_uuid=user_workspace_uuid)