from rest_framework import viewsets, permissions, authentication
from rest_framework.response import Response
from jobposting.models import JobListing, CompanyLogo, Skill
from core.models import MyUser, AnonymousUserData
from rest_framework import status
from jobposting.permissions import ClientCredentialPermission
from oauth2_provider.contrib.rest_framework import TokenHasReadWriteScope, OAuth2Authentication
from .auth import OAuth2ClientCredentialAuthentication
from rest_framework.views import APIView
import requests 
from django.conf import settings
import base64

from jobposting.serializers import (
    JobListingSerializer,
    MyUserSerializer,
    CompanyLogoSerializer,
    SkillSerializer
)


class MyUserViewSet(viewsets.ModelViewSet):
    # authentication_classes = [OAuth2Authentication, authentication.SessionAuthentication]
    # permission_classes = [permissions.IsAuthenticated|TokenHasReadWriteScope]
    queryset = MyUser.objects.all()
    serializer_class = MyUserSerializer
    required_scope  = ['main']
    authentication_classes = []     ### test only - to be changed 
    permission_classes = []         ### 
    # # permission_classes = [permissions.IsAuthenticated]


class JobListingViewSet(viewsets.ModelViewSet):
    # authentication_classes = [OAuth2Authentication, authentication.SessionAuthentication]
    # permission_classes = [permissions.IsAuthenticated|TokenHasReadWriteScope] # test only
    queryset = JobListing.objects.all()
    serializer_class = JobListingSerializer
    required_scope  = ['main']
    authentication_classes = []
    permission_classes = []
    # # permission_classes = [permissions.IsAuthenticatedOrReadOnly]
    
    def perform_create(self, serializer):
        if self.request.user.is_authenticated:
            serializer.save(created_by=self.request.user)
        else:
            # Pobieranie danych z formularza
            first_name = self.request.data.get('first_name')
            last_name = self.request.data.get('last_name')
            contact_email = self.request.data.get('contact_email')

            # Tworzenie rekordu AnonymousUserData
            anonymous_user_data = AnonymousUserData.objects.create(
                first_name=first_name, 
                last_name=last_name, 
                contact_email=contact_email
            )

            serializer.save(anonymous_user_data=anonymous_user_data)


class CompanyLogoViewSet(viewsets.ModelViewSet):
    # authentication_classes = [OAuth2Authentication, authentication.SessionAuthentication]
    # permission_classes = [permissions.IsAuthenticated|TokenHasReadWriteScope]
    queryset = CompanyLogo.objects.all()
    serializer_class = CompanyLogoSerializer
    required_scope  = ['main']
    authentication_classes = []
    permission_classes = []


class SkillViewset(viewsets.ModelViewSet):
    # authentication_classes = [OAuth2Authentication, authentication.SessionAuthentication]
    # permission_classes = [permissions.IsAuthenticated|TokenHasReadWriteScope]
    queryset = Skill.objects.all()
    serializer_class = SkillSerializer
    required_scope  = ['main']
    authentication_classes = []
    permission_classes = []


class JobLisingMainView(APIView):
    authentication_classes = []
    permission_classes = []

    def get(self, request, format=None):
        num_of_offers = request.query_params.get('num_of_offers')
        try:
            num_of_offers = int(num_of_offers)
        except ValueError:
            return Response({'error': 'Invalid number format'},
                            status=status.HTTP_400_BAD_REQUEST)
        job_listings = JobListing.objects.all()[:num_of_offers]
        serializer = JobListingSerializer(job_listings, many=True)
        return Response(serializer.data)
    
class SkillMainView(APIView):
    authentication_classes = []
    permission_classes = []

    def get(self, request, format=None):
        num_of_skills = request.query_params.get('num_of_skills')
        try:
            num_of_skills = int(num_of_skills)
        except ValueError:
            return Response({'error': 'Invalid number format'},
                            status=status.HTTP_400_BAD_REQUEST)
        skills = Skill.objects.all()[:num_of_skills]
        serializer = SkillSerializer(skills, many=True)
        return Response(serializer.data)