from django.core import mail
from django.test import override_settings, TestCase
from django.urls import reverse

from opentech.apply.utils.testing.tests import BaseViewTestCase
from .factories import (
    OAuthUserFactory,
    StaffFactory,
    SuperUserFactory,
    UserFactory,
)


@override_settings(ROOT_URLCONF='opentech.apply.urls')
class BaseTestProfielView(TestCase):
    @classmethod
    def setUpTestData(cls):
        cls.url = reverse('users:account')


class TestProfileView(BaseTestProfielView):
    def setUp(self):
        self.user = UserFactory()
        self.client.force_login(self.user)

    def test_cant_acces_if_not_logged_in(self):
        self.client.logout()
        response = self.client.get(self.url, follow=True)
        # Initial redirect will be via to https through a 301
        self.assertRedirects(response, reverse('users_public:login') + '?next=' + self.url, status_code=301)

    def test_includes_change_password(self):
        response = self.client.get(self.url, follow=True)
        self.assertContains(response, reverse('users:password_change'))

    def test_doesnt_includes_change_password_for_oauth(self):
        self.client.force_login(OAuthUserFactory())
        response = self.client.get(self.url, follow=True)
        self.assertNotContains(response, reverse('users:password_change'))

    def test_cant_set_slack_name(self):
        response = self.client.get(self.url, follow=True)
        self.assertNotContains(response, 'Slack name')


class TestStaffProfileView(BaseTestProfielView):
    def setUp(self):
        self.staff = StaffFactory()
        self.client.force_login(self.staff)

    def test_can_set_slack_name(self):
        response = self.client.get(self.url, follow=True)
        self.assertContains(response, 'Slack name')


class TestPasswordReset(BaseViewTestCase):
    user_factory = UserFactory
    url_name = 'users:{}'
    base_view_name = 'password_reset'

    def test_recieves_email(self):
        response = self.post_page(None, data={'email': self.user.email})
        self.assertRedirects(response, self.url(None, view_name='password_reset_done'))
        self.assertEqual(len(mail.outbox), 1)
        self.assertIn('https://testserver/account/password/reset/confirm', mail.outbox[0].body)


@override_settings(ROOT_URLCONF='opentech.apply.urls')
class TestBecome(TestCase):
    def setUp(self):
        self.staff = StaffFactory()
        self.user = UserFactory()
        self.superuser = SuperUserFactory()

    def become_request(self, user, target):
        self.client.force_login(user)
        url = reverse('users:become')
        response = self.client.post(url, {'user': target.pk}, follow=True, secure=True)
        return response

    def test_staff_can_become_user(self):
        response = self.become_request(self.staff, self.user)
        self.assertEqual(response.status_code, 200)

    def test_staff_cannot_become_superuser(self):
        response = self.become_request(self.staff, self.superuser)
        self.assertEqual(response.status_code, 403)

    def test_superuser_can_become_staff(self):
        response = self.become_request(self.superuser, self.staff)
        self.assertEqual(response.status_code, 200)

    def test_superuser_cannot_become_superuser(self):
        other_superuser = SuperUserFactory()
        response = self.become_request(self.superuser, other_superuser)
        self.assertEqual(response.status_code, 403)

    def test_user_cannot_become_staff(self):
        response = self.become_request(self.user, self.staff)
        self.assertEqual(response.status_code, 403)

    def test_user_cannot_become_other_user(self):
        other_user = UserFactory()
        response = self.become_request(self.user, other_user)
        self.assertEqual(response.status_code, 403)

    def test_user_cannot_become_superuser(self):
        response = self.become_request(self.user, self.superuser)
        self.assertEqual(response.status_code, 403)