from unittest.mock import patch, PropertyMock

from django.test import TestCase, modify_settings
from django.urls import reverse
from bookmarks.models import User
from bookmarks.middlewares import CustomRemoteUserMiddleware


class AuthProxySupportTest(TestCase):
    # Reproducing configuration from the settings logic here
    # ideally this test would just override the respective options
    @modify_settings(
        MIDDLEWARE={'append': 'bookmarks.middlewares.CustomRemoteUserMiddleware'},
        AUTHENTICATION_BACKENDS={'prepend': 'django.contrib.auth.backends.RemoteUserBackend'}
    )
    def test_auth_proxy_authentication(self):
        user = User.objects.create_user('auth_proxy_user', 'user@example.com', 'password123')

        headers = {'REMOTE_USER': user.username}
        response = self.client.get(reverse('bookmarks:index'), **headers)

        self.assertEqual(response.status_code, 200)

    # Reproducing configuration from the settings logic here
    # ideally this test would just override the respective options
    @modify_settings(
        MIDDLEWARE={'append': 'bookmarks.middlewares.CustomRemoteUserMiddleware'},
        AUTHENTICATION_BACKENDS={'prepend': 'django.contrib.auth.backends.RemoteUserBackend'}
    )
    def test_auth_proxy_with_custom_header(self):
        with patch.object(CustomRemoteUserMiddleware, 'header', new_callable=PropertyMock) as mock:
            mock.return_value = 'Custom-User'
            user = User.objects.create_user('auth_proxy_user', 'user@example.com', 'password123')

            headers = {'Custom-User': user.username}
            response = self.client.get(reverse('bookmarks:index'), **headers)

            self.assertEqual(response.status_code, 200)

    def test_auth_proxy_is_disabled_by_default(self):
        user = User.objects.create_user('auth_proxy_user', 'user@example.com', 'password123')

        headers = {'REMOTE_USER': user.username}
        response = self.client.get(reverse('bookmarks:index'), **headers, follow=True)

        self.assertRedirects(response, '/login/?next=%2Fbookmarks')