import logging

from django.http import JsonResponse

from rest_framework.decorators import api_view
from oauthlib import openid
from py_jwt_validator import PyJwtValidator, PyJwtException
import requests

logger = logging.getLogger(__name__)


class TestApiClass:
    @staticmethod
    @api_view(['GET'])
    def test_api(request):
        logger.debug('Test api call: {}'.format(request))
        return JsonResponse({'Result': 'success'}, safe=False)


class LoginClass:
    @staticmethod
    @api_view(['GET'])
    def login(request: requests.Request):
        logger.debug('Validating request: {}'.format(request))

        if 'Authorization' not in request.headers:
            print(f"Authorization header missing")
            logger.error(f"Authorization header missing")
            return JsonResponse({}, status=401)

        bearer = request.headers['Authorization']

        if len(bearer.split()) < 2:
            return JsonResponse({}, status=401)

        jwt = bearer.split()[1]

        try:
            PyJwtValidator(jwt)
        except PyJwtException as e:
            print(f"Exception caught. Error: {e}")
            logger.error(f"Exception caught. Error: {e}")
            return JsonResponse({}, status=401)
        except UnicodeDecodeError as e2:
            print(f"Exception caught. Error: {e2}")
            logger.error(f"Exception caught. Error: {e2}")
            return JsonResponse({}, status=401)

        return JsonResponse({}, safe=False, status=200)