from django.db.models import Q
from django.shortcuts import get_object_or_404
from django_core.mixins import BaseViewSetMixin
from django_filters.rest_framework import DjangoFilterBackend
from drf_spectacular.utils import extend_schema, OpenApiParameter
from rest_framework import generics
from rest_framework.filters import OrderingFilter, SearchFilter
from rest_framework.generics import GenericAPIView, ListAPIView
from rest_framework.permissions import AllowAny, IsAuthenticated
from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework.viewsets import ModelViewSet

from core.apps.accounts.choices import RoleChoice
from core.apps.accounts.serializers.user import UserSerializer
from core.apps.evaluation.filters.auto import AutoevaluationFilter
from core.apps.evaluation.models import AutoEvaluationModel
from core.apps.evaluation.serializers import auto as serializers, AutoEvaluationModelSerializer


@extend_schema(tags=["AutoEvaluation"])
class AutoEvaluationView(BaseViewSetMixin, ModelViewSet):
    queryset = AutoEvaluationModel.objects.select_related(
        "valuation",
        "valuation__customer",
        "vehicle",
    ).filter(is_archived=False)
    serializer_class = serializers.ListAutoevaluationSerializer
    permission_classes = [AllowAny]

    filter_backends = [DjangoFilterBackend, SearchFilter, OrderingFilter]
    filterset_class = AutoevaluationFilter
    search_fields = [
        "registration_number",
        "car_model",
        "car_brand",
        "car_number",
    ]
    ordering_fields = [
        "id",
        "contract_date",
        "object_inspection_date",
        "object_owner_individual_person_passport_num",
        "object_owner_type",
        "object_owner_individual_person_f_name",
        "object_owner_individual_person_l_name",
        "object_owner_individual_person_p_name",
        "object_owner_legal_entity",
        "object_owner_legal_inn",
        "tex_passport_serie_num",
        "rating_goal",
        "object_location_province",
        "registration_number",
        "object_type",
        "object_type_display",
        "car_brand",
        "car_model",
        "car_number",
        "manufacture_year",
        "car_color",
        "status",
        "status_display",
        "created_at",
        "value_determined",
        "rate_type",
    ]
    ordering = ["-created_at"]

    action_permission_classes = {}
    action_serializer_class = {
        "list": serializers.ListAutoevaluationSerializer,
        "retrieve": serializers.RetrieveAutoevaluationSerializer,
        "create": serializers.CreateAutoevaluationSerializer,
        "update": serializers.UpdateAutoevaluationSerializer,
        "partial_update": serializers.UpdateAutoevaluationSerializer,
    }

    def serializer_context(self):
        return self.serializer_class(context={'request': self.request})


@extend_schema(tags=["AutoEvaluation"])
class AutoEvaluationSetAppraisersView(GenericAPIView):
    permission_classes = [IsAuthenticated]
    queryset = AutoEvaluationModel.objects.all()
    serializer_class = serializers.AutoEvaluationAppraisersSerializer

    def post(self, request, id):
        try:
            auto_evaluation = get_object_or_404(AutoEvaluationModel, id=id)
            serializer = self.serializer_class(data=request.data)
            serializer.is_valid(raise_exception=True)
            users = serializer.validated_data.get("users")
            auto_evaluation.appraisers.set(users)
            auto_evaluation.save()
            return Response({"success": True, "data": "Foydalanuvchilar muvaffaqiyatli qo'shildi"})
        except Exception as e:
            return Response({"error": str(e)}, status=500)


@extend_schema(tags=["AutoEvaluation"])
class AutoEvaluationRemoveAppraisersView(GenericAPIView):
    permission_classes = [IsAuthenticated]
    queryset = AutoEvaluationModel.objects.all()
    serializer_class = serializers.AutoEvaluationAppraisersSerializer

    def post(self, request, id):
        try:
            auto_evaluation = get_object_or_404(AutoEvaluationModel, id=id)
            serializer = self.serializer_class(data=request.data)
            serializer.is_valid(raise_exception=True)
            users = serializer.validated_data.get("users")
            auto_evaluation.appraisers.remove(*users)
            auto_evaluation.save()
            return Response({"success": True, "data": "Foydalanuvchilar muvaffaqiyatli o'chirildi"})
        except Exception as e:
            return Response({"error": str(e)}, status=500)


@extend_schema(tags=["AutoEvaluation"])
class AutoEvaluationListAppraisersView(GenericAPIView):
    permission_classes = [IsAuthenticated]
    queryset = AutoEvaluationModel.objects.all()
    serializer_class = UserSerializer

    @extend_schema(
        parameters=[
            OpenApiParameter(
                name="search",
                type=str,
                description="Search query",
                required=False,
            )
        ]
    )
    def get(self, request, id):
        try:
            search_query = request.query_params.get("search", "")
            auto_evaluation = get_object_or_404(AutoEvaluationModel, id=id)
            query = auto_evaluation.appraisers.all()
            if search_query:
                query = query.filter(
                    Q(phone__icontains=search_query) |
                    Q(first_name__icontains=search_query) |
                    Q(last_name__icontains=search_query)
                )
            page = self.paginate_queryset(query)
            serializer = self.serializer_class(page, many=True)
            return self.get_paginated_response(serializer.data)
        except Exception as e:
            return Response({"error": str(e)}, status=500)


@extend_schema(tags=["AutoEvaluation"])
class AutoEvaluationArchivedListAPIView(ListAPIView):
    permission_classes = [IsAuthenticated]
    serializer_class = serializers.ListAutoevaluationSerializer

    def get_queryset(self):
        return AutoEvaluationModel.objects.filter(is_archived=True)


@extend_schema(tags=["AutoEvaluation"])
class AutoEvaluationArchiveAPIView(APIView):
    permission_classes = [IsAuthenticated]

    def post(self, request, pk):
        auto_evaluation = get_object_or_404(AutoEvaluationModel, pk=pk)
        auto_evaluation.is_archived = request.data["is_archived"]
        auto_evaluation.save()
        return Response(
            {
                "success": True,
                "status": auto_evaluation.status,
                "id": auto_evaluation.pk
            },
            status=200
        )

@extend_schema(tags=["AutoEvaluation"])
class AdminEvaluationsAPIView(generics.GenericAPIView):
    permission_classes = [IsAuthenticated]

    def get(self, request):
        if request.user.role != RoleChoice.ADMIN:
            return Response({'detail': 'Forbidden'}, status=403)
        auto_eval = AutoEvaluationModel.objects.filter(
            created_by=self.request.user
        ).select_related('appraisers').distinct()
        serializer = AutoEvaluationModelSerializer(auto_eval, many=True)
        return Response(serializer.data)