#!/usr/bin/python
# Copyright 2016 Red Hat, Inc.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

import argparse
import logging
import os
import sys
from ipalib import api, errors
from novajoin import configure_ipa
from novajoin.errors import ConfigurationError


IPACONF = '/etc/ipa/default.conf'
LOGFILE = '/var/log/novajoin-install.log'

logging.basicConfig()
logger = logging.getLogger()


if __name__ == '__main__':
    if not os.path.exists(IPACONF):
        sys.exit('Must be enrolled in IPA')

    api.bootstrap(context='novajoin')
    api.finalize()

    try:
        parser = argparse.ArgumentParser(
            description='Nova join Install Options'
        )
        parser = configure_ipa.ipa_options(parser)
        args = vars(parser.parse_args())
        configure_ipa.validate_options(args)
    except ConfigurationError as e:  # pylint: disable=broad-except
        logger.info(str(e))          # emit message to console
        logger.debug(e, exc_info=1)  # add backtrace information to logfile

        logger.info('Installation aborted.')
        logger.info('See log file %s for details' % LOGFILE)
        sys.exit(1)

    novajoin = configure_ipa.NovajoinRole(user=args.get('user'))
    if not args.get('no_kinit', False):
        novajoin.kinit(args.get('principal'), args.get('password'))

    try:
        api.Backend.rpcclient.connect()
    except errors.CCacheError:
        sys.exit("No Kerberos credentials")

    novajoin.configure_ipa()