# Copyright 2014 - Rackspace Hosting
#
#    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.

"""Starter script for the Magnum conductor service."""

import logging as std_logging
import os
import sys

from oslo_config import cfg

from magnum.common import rpc_service as service
from magnum.conductor.handlers import bay_k8s_heat
from magnum.conductor.handlers import docker_conductor
from magnum.conductor.handlers import kube as k8s_conductor
from magnum.openstack.common._i18n import _
from magnum.openstack.common import log as logging

LOG = logging.getLogger(__name__)


def main():
    cfg.CONF(sys.argv[1:], project='magnum')
    logging.setup('magnum')

    LOG.info(_('Starting server in PID %s') % os.getpid())
    LOG.debug("Configuration:")
    cfg.CONF.log_opt_values(LOG, std_logging.DEBUG)

    cfg.CONF.import_opt('topic', 'magnum.conductor.config', group='conductor')
    cfg.CONF.import_opt('host', 'magnum.conductor.config', group='conductor')
    endpoints = [
        docker_conductor.Handler(),
        k8s_conductor.Handler(),
        bay_k8s_heat.Handler()
    ]

    # TODO(sdake): Presently Magnum only has one template file.  As we go to
    # Ironic, we will need a second template  I somewhat it believes it makes
    # sense to move these under the magnum/magnum/templates directory since
    # they are a hardcoded dependency and not store them in etc.
    if not os.path.isfile(cfg.CONF.k8s_heat.template_path):
        LOG.error("The Heat template %s is not found.  Install template." %
                  (cfg.CONF.k8s_heat.template_path))
        exit(-1)

    server = service.Service(cfg.CONF.conductor.topic,
                             cfg.CONF.conductor.host, endpoints)
    server.serve()