# Copyright (C) 2017, 2018 Cumulus Networks, Inc. all rights reserved
#
# 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; version 2.
#
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
#
# https://www.gnu.org/licenses/gpl-2.0-standalone.html
#
# Author:
#       Julien Fortin, julien@cumulusnetworks.com
#
# addon -- Addon base class
#

import logging

try:
    from ifupdown2.lib.io import IO
    from ifupdown2.lib.sysfs import Sysfs
    from ifupdown2.lib.iproute2 import IPRoute2
    from ifupdown2.lib.base_objects import Netlink, Cache, Requirements
except ImportError:
    from lib.io import IO
    from lib.sysfs import Sysfs
    from lib.iproute2 import IPRoute2
    from lib.base_objects import Netlink, Cache, Requirements


class Addon(Netlink, Cache):
    """
    Base class for ifupdown2 addon modules
    Provides common infrastructure methods for all addon modules
    """

    def __init__(self):
        Netlink.__init__(self)
        Cache.__init__(self)

        self.logger = logging.getLogger("ifupdown2.addons.%s" % self.__class__.__name__)

        self.io = IO()
        self.sysfs = Sysfs
        self.iproute2 = IPRoute2()
        self.requirements = Requirements()