# -*- coding: utf-8 -*-

##########################################################################
# OpenLP - Open Source Lyrics Projection                                 #
# ---------------------------------------------------------------------- #
# Copyright (c) 2008-2022 OpenLP Developers                              #
# ---------------------------------------------------------------------- #
# 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/>. #
##########################################################################
"""
The :mod:`~tests.helpers` module provides helper classes for use in the tests.
"""
from datetime import datetime


class MockDateTime(object):
    return_values = [datetime(2015, 4, 15, 18, 35, 21, 0)]
    call_counter = 0

    @classmethod
    def revert(cls):
        cls.return_values = [datetime(2015, 4, 15, 18, 35, 21, 0)]
        cls.call_counter = 0

    @classmethod
    def now(cls):
        if len(cls.return_values) > cls.call_counter:
            mocked_datetime = cls.return_values[cls.call_counter]
        else:
            mocked_datetime = cls.return_values[-1]
        cls.call_counter += 1
        return mocked_datetime