# Copyright (c) 2021, Djaodjin Inc.
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#
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#    this list of conditions and the following disclaimer.
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import re

from django.conf import settings
from django.contrib.auth import get_user_model
from django.test import TestCase
from django.test.client import Client, RequestFactory
from rest_framework.test import APIClient

from signup import settings as signup_settings
from signup.compat import reverse
from signup.auth import validate_redirect, validate_redirect_url
from signup.models import ActivatedUserManager
from .models import Notification


REGISTRATION_EMAIL = 'user@example.com'


class SignUpTests(TestCase):
    """
    Tests signup functionality.
    """

    def setUp(self):
        # By default it will end-up being '*' which breaks multitier tests.
        settings.ALLOWED_HOSTS = ('testserver', 'localhost',)
        # Every test needs access to the request factory.
        self.factory = RequestFactory()

    def test_redirect_ok(self):
        """
        Tests to validate the redirect URL.
        """
        request = self.factory.get('/?next=/example/')
        url = validate_redirect(request)
        self.assertTrue(url == "/example/")

    def test_redirect_fail1(self):
        """
        Tests to validate the redirect URL.
        """
        request = self.factory.get('/?next=http://example.com/example/')
        url = validate_redirect(request)
        if '*' in settings.ALLOWED_HOSTS:
            self.assertTrue(url == "/example/")
        else:
            self.assertTrue(url is None)

    def test_redirect_url_ok(self):
        """
        Tests to validate the redirect URL.
        """
        url = validate_redirect_url("/example/")
        self.assertTrue(url == "/example/")

    def test_redirect_url_fail1(self):
        """
        Tests to validate the redirect URL.
        """
        url = validate_redirect_url("http://example.com/example/")
        if '*' in settings.ALLOWED_HOSTS:
            self.assertTrue(url == "/example/")
        else:
            self.assertTrue(url is None)

    def test_activate_password(self):
        # Hack to install our create_user method.
        user_class = get_user_model()
        user_class.objects = ActivatedUserManager()
        user_class.objects.model = user_class
        user = get_user_model().objects.create_user(REGISTRATION_EMAIL,
            email=REGISTRATION_EMAIL, is_active=False)
        client = Client()
        contact = user.contacts.exclude(
            email_verified_at__isnull=True).filter(
            email_verification_key__isnull=False).first()
        verification_key = None
        if contact:
            verification_key = contact.email_verification_key
        response = client.get(reverse('registration_activate',
            args=(verification_key,)), follow=True)
        # pylint: disable=maybe-no-member
        self.assertTrue(response.status_code == 200)
        self.assertTrue(re.match(
     r'/activate/(?P<verification_key>%s)/password/(?P<token>.+)/$'
            % signup_settings.EMAIL_VERIFICATION_PAT,
            response.redirect_chain[-1][0]))

    def test_register(self):
        client = Client()
        response = client.post(reverse('registration_register'),
                     {'full_name': 'John Smith', 'email': REGISTRATION_EMAIL},
                               follow=True)
        # XXX Haven't found out how to get this assertion to pass,
        # status_code 302 vs 200 expected.
        # self.assertRedirects(response, settings.LOGIN_REDIRECT_URL)
        self.assertTrue(re.match(r'/users/[\w.@+-]+/',
                                 response.redirect_chain[-1][0]))


class DRFTest(TestCase):

    def setUp(self):
        get_user_model().objects.create_user(
            'john', 'lennon@thebeatles.com', 'johnpassword')
        Notification(slug='create_user').save()
        self.client = APIClient()
        self.client.login(username='john', password='johnpassword')

    def test_notifications(self):
        notification_slug = 'create_user'
        response = self.client.patch(
            '/api/users/john/notifications/', {'notifications': [
                notification_slug]}, format='json')

        self.assertEqual(response.status_code, 200)

        notifications = get_user_model().objects.get(
            username='john').notifications.all()
        self.assertEqual(len(notifications), 1)
        self.assertEqual(notifications[0].slug, notification_slug)
