# -*- coding: utf-8 -*-
# polkit_agent.py
# Copyright (C) 2013 LEAP
#
# 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 <http://www.gnu.org/licenses/>.
"""
Daemonizes polkit authentication agent.
"""
import logging
import subprocess

import daemon

logger = logging.getLogger(__name__)

BASE_PATH = "/usr/lib/policykit-1-gnome/"\
            + "polkit-%s-authentication-agent-1"

GNOME_PATH = BASE_PATH % ("gnome",)
KDE_PATH = BASE_PATH % ("kde",)


def _launch_agent():
    logger.debug('Launching polkit auth agent')
    print "launching polkit"
    try:
        subprocess.call(GNOME_PATH)
    except Exception as exc:
        try:
            subprocess.call(KDE_PATH)
        except Exception as exc:
            logger.error('Exception while running polkit authentication agent '
                         '%s' % (exc,))


def launch():
    with daemon.DaemonContext():
        _launch_agent()

if __name__ == "__main__":
    launch()