# Copyright 2016 Red Hat, Inc.
# All Rights Reserved.
#
# 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.

from config_tempest import constants as C
from tempest.lib import exceptions


def check_ceilometer_service(conf, service_client):
    """If a metering service is available, set it to conf

    :type conf: TempestConf object
    :type service_client: Tempest's identity.v3.services_client.ServicesClient
    """
    try:
        params = {'type': 'metering'}
        services = service_client.list_services(**params)
    except exceptions.Forbidden:
        C.LOG.warning("User has no permissions to list services - "
                      "metering service can't be discovered.")
        return
    if services and len(services['services']):
        metering = services['services'][0]
        if 'ceilometer' in metering['name'] and metering['enabled']:
            conf.set('service_available', 'ceilometer', 'True')