# -*- coding: utf-8 -*-
#
# Copyright © 2012 - 2017 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 datetime import date

from django.contrib.auth.models import User
from django.db import models
from django.utils.encoding import python_2_unicode_compatible

from weblate.accounts.notifications import notify_account_activity


# Current TOS date
TOS_DATE = date(2017, 7, 2)


@python_2_unicode_compatible
class Agreement(models.Model):
    user = models.OneToOneField(
        User, unique=True, on_delete=models.deletion.CASCADE
    )
    tos = models.DateField(default=date(1970, 1, 1))
    timestamp = models.DateTimeField(auto_now=True)

    class Meta(object):
        ordering = ['user__username']

    def __str__(self):
        return '{0}:{1}'.format(self.user.username, self.tos)

    def is_current(self):
        return self.tos == TOS_DATE

    def make_current(self, request):
        if not self.is_current():
            notify_account_activity(
                self.user, request, 'tos', date=TOS_DATE.isoformat()
            )
            self.tos = TOS_DATE
            self.save()
