from django.contrib.auth import login

from rest_framework.decorators import action
from rest_framework.permissions import AllowAny, IsAdminUser, IsAuthenticated
from rest_framework.response import Response
from rest_framework.viewsets import ModelViewSet

from core.mixins import ActionBasedMixin

from market.serializers import PostSerializer
from .models import User
from .serializers import UserSerializer, UserCreateSerializer


class UserViewset(ActionBasedMixin, ModelViewSet):
    queryset = User.objects.all()
    serializer_class = UserSerializer
    serializer_class_map = {
        "create": UserCreateSerializer,
        "posts": PostSerializer,
    }
    permission_classes = [IsAdminUser]
    permission_classes_map = {
        "create": [AllowAny],
        "me": [IsAuthenticated],
        "posts": [IsAuthenticated],
    }

    @action(detail=True, methods=["GET"])
    def posts(self, request, pk):
        user = self.get_object()
        queryset = user.posts.all()

        page = self.paginate_queryset(queryset)
        if page is not None:
            serializer = self.get_serializer(page, many=True)
            return self.get_paginated_response(serializer.data)

        serializer = self.get_serializer(queryset, many=True)
        return Response(serializer.data)

    def create(self, request, *args, **kwargs):
        serializer = UserCreateSerializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        user = self.perform_create(serializer)
        login(request, user)
        return Response(serializer.data, status=201)

    @action(detail=False, methods=["GET"])
    def me(self, request):
        serializer = self.get_serializer(request.user)
        return Response(serializer.data)