# -*- coding: utf-8 -*-
#
# Copyright © 2012 - 2018 Michal Čihař <michal@cihar.com>
#
# This file is part of Weblate <https://weblate.org/>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.
#

"""
Tests for user handling.
"""

from io import BytesIO

from django.urls import reverse

import httpretty

from PIL import Image

from weblate.auth.models import User
from weblate.accounts import avatar
from weblate.trans.tests.test_views import FixtureTestCase


TEST_URL = (
    'https://www.gravatar.com/avatar/'
    '55502f40dc8b7c769880b10874abc9d0?d=identicon&s=32'
)


class AvatarTest(FixtureTestCase):
    def setUp(self):
        super(AvatarTest, self).setUp()
        self.user.email = 'test@example.com'
        self.user.save()

    def test_avatar_for_email(self):
        url = avatar.avatar_for_email(
            self.user.email,
            size=32,
        )
        self.assertEqual(TEST_URL, url)

    @httpretty.activate
    def test_avatar(self):
        image = Image.new('RGB', (32, 32))
        storage = BytesIO()
        image.save(storage, 'PNG')
        imagedata = storage.getvalue()
        httpretty.register_uri(
            httpretty.GET,
            TEST_URL,
            body=imagedata,
        )
        # Real user
        response = self.client.get(
            reverse(
                'user_avatar',
                kwargs={'user': self.user.username, 'size': 32}
            )
        )
        self.assert_png(response)
        self.assertEqual(response.content, imagedata)
        # Test caching
        response = self.client.get(
            reverse(
                'user_avatar',
                kwargs={'user': self.user.username, 'size': 32}
            )
        )
        self.assert_png(response)
        self.assertEqual(response.content, imagedata)

    @httpretty.activate
    def test_avatar_error(self):
        httpretty.register_uri(
            httpretty.GET,
            TEST_URL,
            status=503,
        )
        # Choose different username to avoid using cache
        self.user.username = 'test2'
        self.user.save()
        response = self.client.get(
            reverse(
                'user_avatar',
                kwargs={'user': self.user.username, 'size': 32}
            )
        )
        self.assert_png(response)

    def test_anonymous_avatar(self):
        anonymous = User.objects.get(username='anonymous')
        # Anonymous user
        response = self.client.get(
            reverse(
                'user_avatar',
                kwargs={'user': anonymous.username, 'size': 32}
            )
        )
        self.assertRedirects(
            response, '/static/weblate-32.png',
            fetch_redirect_response=False
        )

    def test_fallback_avatar(self):
        self.assert_png_data(
            avatar.get_fallback_avatar(32)
        )
