# -*- coding: utf-8 -*-
#
# Copyright © 2012 - 2020 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/>.
#

from __future__ import unicode_literals

from ssl import CertificateError

from django.conf import settings
from django.core.checks import Critical

from weblate.utils.docs import get_doc_url


def check_avatars(app_configs, **kwargs):
    from weblate.auth.models import get_anonymous
    from weblate.accounts.avatar import download_avatar_image
    if not settings.ENABLE_AVATARS:
        return []
    try:
        download_avatar_image(get_anonymous(), 32)
        return []
    except (IOError, CertificateError) as error:
        return [
            Critical(
                'Failed to download avatar: {}'.format(error),
                hint=get_doc_url('admin/optionals', 'avatars'),
                id='weblate.E018',
            )
        ]
