from rest_framework.views import APIView
from rest_framework.renderers import JSONRenderer
from rest_framework.response import Response
from django.db.models import Q
from lms.global_decorators import transaction_decorator

from journals.models import Thread
from journals.serilizers import ThreadDetailSerializer, ThreadAdminSerializer


class ThreadAdminListView(APIView):
    renderer_classes = (JSONRenderer,)
    status_code = 200

    def get(self, request):
        return Response(
            [ThreadAdminSerializer(thread).data for thread in Thread.objects.filter(is_staff=True)],
            self.status_code,
        )


class ThreadDetailView(APIView):
    renderer_classes = (JSONRenderer,)
    status_code = 200

    def post(self, request, key):
        try:
            thread = Thread.objects.get(key=key)
            thread.text = request.JSON.get('text', thread.text)
            thread.key = request.JSON.get('key', thread.key)
            thread.x = request.JSON.get('x', thread.x)
            thread.y = request.JSON.get('y', thread.y)
            thread.save()
            return Response(ThreadAdminSerializer(thread).data, self.status_code,)
        except Thread.DoesNotExist:
            return Response("Thread doesn't exist.", self.status_code,)

    @staticmethod
    def get(request, key):
        try:
            thread = Thread.objects.get(key=key)
            if thread.check_perm(request.user):
                return Response(ThreadDetailSerializer(thread).data, status=200)
            return Response("permission denied", status=403)

        except Thread.DoesNotExist:
            return Response("Thread not found", status=404)