from django.contrib.auth import get_user_model
from django.urls import reverse

from misago.core.utils import encode_json_html
from misago.users.models import Ban
from misago.users.testutils import UserTestCase
from misago.users.tokens import make_password_change_token


UserModel = get_user_model()


class ForgottenPasswordViewsTests(UserTestCase):
    def test_guest_request_view_returns_200(self):
        """request new password view returns 200 for guests"""
        response = self.client.get(reverse('misago:forgotten-password'))
        self.assertEqual(response.status_code, 200)

    def test_authenticated_request_view_returns_200(self):
        """request new password view returns 200 for authenticated"""
        self.login_user(self.get_authenticated_user())

        response = self.client.get(reverse('misago:forgotten-password'))
        self.assertEqual(response.status_code, 200)

    def test_authenticated_request_unusable_password_view_returns_200(self):
        """request new password view returns 200 for authenticated with unusable password"""
        user = self.get_authenticated_user()
        user.set_password(None)
        user.save()

        self.assertFalse(user.has_usable_password())
        self.login_user(user)

        response = self.client.get(reverse('misago:forgotten-password'))
        self.assertEqual(response.status_code, 200)

    def test_change_password_on_banned(self):
        """change banned user password errors"""
        test_user = UserModel.objects.create_user('Bob', 'bob@test.com', 'Pass.123')

        Ban.objects.create(
            check_type=Ban.USERNAME,
            banned_value='bob',
            user_message='Nope!',
        )

        password_token = make_password_change_token(test_user)

        response = self.client.get(
            reverse(
                'misago:forgotten-password-change-form',
                kwargs={
                    'pk': test_user.pk,
                    'token': password_token,
                },
            )
        )
        self.assertContains(response, encode_json_html("<p>Nope!</p>"), status_code=403)

    def test_change_password_on_other_user(self):
        """change other user password errors"""
        test_user = UserModel.objects.create_user('Bob', 'bob@test.com', 'Pass.123')

        password_token = make_password_change_token(test_user)

        self.login_user(self.get_authenticated_user())

        response = self.client.get(
            reverse(
                'misago:forgotten-password-change-form',
                kwargs={
                    'pk': test_user.pk,
                    'token': password_token,
                },
            )
        )
        self.assertContains(response, 'your link has expired', status_code=400)

    def test_change_password_invalid_token(self):
        """invalid form token errors"""
        test_user = UserModel.objects.create_user('Bob', 'bob@test.com', 'Pass.123')

        response = self.client.get(
            reverse(
                'misago:forgotten-password-change-form',
                kwargs={
                    'pk': test_user.pk,
                    'token': 'abcdfghqsads',
                },
            )
        )
        self.assertContains(response, 'your link is invalid', status_code=400)

    def test_change_password_form(self):
        """change user password form displays for valid token"""
        test_user = UserModel.objects.create_user('Bob', 'bob@test.com', 'Pass.123')

        password_token = make_password_change_token(test_user)

        response = self.client.get(
            reverse(
                'misago:forgotten-password-change-form',
                kwargs={
                    'pk': test_user.pk,
                    'token': password_token,
                },
            )
        )
        self.assertContains(response, password_token)

    def test_change_password_unusable_password_form(self):
        """set user first password form displays for valid token"""
        test_user = UserModel.objects.create_user('Bob', 'bob@test.com')

        password_token = make_password_change_token(test_user)

        response = self.client.get(
            reverse(
                'misago:forgotten-password-change-form',
                kwargs={
                    'pk': test_user.pk,
                    'token': password_token,
                },
            )
        )
        self.assertContains(response, password_token)