from django.http.response import JsonResponse
from django.shortcuts import render
from .models import Room
from .serializers import *
from rest_framework import generics, status
from rest_framework.views import APIView
from rest_framework.response import Response



class RoomView(generics.ListAPIView):
    queryset = Room.objects.all()
    serializer_class = RoomSerializer
    
    


def index(request,roomCode=''):
    return render(request,'index.html')

class CreateRoomView(APIView):
    serializer_class = CreateRoomSerializer

    def post(self, request, format=None):
        if not self.request.session.exists(self.request.session.session_key):
            self.request.session.create()
            
         
        serializer = self.serializer_class(data=request.data)
        if serializer.is_valid():
            guest_can_pause = serializer.data.get('guest_can_pause')
            votes_to_skip = serializer.data.get('votes_to_skip')
            host = self.request.session.session_key
            queryset = Room.objects.filter(host=host)
            if queryset.exists():
                room = queryset[0]
                room.guest_can_pause = guest_can_pause
                room.votes_to_skip = votes_to_skip
                room.save(update_fields=['guest_can_pause', 'votes_to_skip'])
                self.request.session['room_code'] = room.code
                return Response(RoomSerializer(room).data, status=status.HTTP_200_OK)
            else:
                room = Room(host=host, guest_can_pause=guest_can_pause,
                            votes_to_skip=votes_to_skip)
                room.save()
                self.request.session['room_code'] = room.code
                return Response(RoomSerializer(room).data, status=status.HTTP_201_CREATED)

        return Response({'Bad Request': 'Invalid data...'}, status=status.HTTP_400_BAD_REQUEST)


class JoinRoom(APIView):
    def post(self,request,format=None):
        if not self.request.session.exists(self.request.session.session_key):
            self.request.session.create()

        code=request.data.get('code')
        if code !=None:
            room_result=Room.objects.filter(code=code)
            if len(room_result) > 0:
                room = room_result[0]
                self.request.session['room_code']=code
                return Response({'message':'Room joined'},status=status.HTTP_200_OK)

            return Response({'Bad Request':'Invalid Room code'},status=status.HTTP_400_BAD_REQUEST)

        return Response({'Bad Request':'Invalid post data, did not find a code key'},status=status.HTTP_400_BAD_REQUEST)
        


class GetRoom(APIView):
    serializer_class = RoomSerializer

    def get(self, request, format=None):
        code = request.GET.get('code')
        if code != None:
            room = Room.objects.filter(code=code)

            if len(room) > 0:
                data = RoomSerializer(room[0]).data
                data['is_host'] = self.request.session.session_key == room[0].host
                return Response(data, status=status.HTTP_200_OK)
            return Response({'Room Not Found': 'Invalid Room Code.'}, status=status.HTTP_404_NOT_FOUND)

        return Response({'Bad Request': 'Code paramater not found in request'}, status=status.HTTP_400_BAD_REQUEST)

class UserInRoom(APIView):
    def get(self,request,format=None):
        if not self.request.session.exists(self.request.session.session_key):
            self.request.session.create()

        data ={
            'code' : self.request.session.get('room_code')
        }
        
        return JsonResponse(data,status=status.HTTP_200_OK)

class LeaveRoom(APIView):
     def post(self, request, format=None):
        if 'room_code' in self.request.session:
            self.request.session.pop('room_code')
            host_id = self.request.session.session_key
            room_results = Room.objects.filter(host=host_id)
            if len(room_results) > 0:
                room = room_results[0]
                room.delete()

        return Response({'Message': 'Success'}, status=status.HTTP_200_OK)


class UpdateRoom(APIView):

    serializer_class=UpdateRoomSerializer

    def patch(self,request,format=None):
        if not self.request.session.exists(self.request.session.session_key):
            self.request.session.create()

        serialized_data = self.serializer_class(data=request.data)
        if(serialized_data.is_valid()):
            guest_can_pause = serialized_data.data.get('guest_can_pause')
            votes_to_skip = serialized_data.data.get('votes_to_skip')
            code = serialized_data.data.get('code')
            queryset=Room.objects.filter(code=code) 
            if not queryset.exists():
                return Response({'msg':'Room not found'},status=status.HTTP_400_BAD_REQUEST)

            room = queryset[0]
            user_id = self.request.session.session_key
            if room.host != user_id:
                return Response({'msg': 'You are not the host of this room.'}, status=status.HTTP_403_FORBIDDEN)
            
            room.guest_can_pause = guest_can_pause
            room.votes_to_skip = votes_to_skip
            
            room.save(update_fields=['guest_can_pause','votes_to_skip'])
            return Response({'msg': 'Room updated sucessfully'}, status=status.HTTP_200_OK)
        
        return Response({'Bad Request': "Invalid Data..."}, status=status.HTTP_400_BAD_REQUEST)