#    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 oslo_config import cfg

from keystone import backends
from keystone.common import dependency
from keystone.common import sql
from keystone import config


CONF = cfg.CONF


def configure(version=None, config_files=None):
    config.configure()
    sql.initialize()
    config.set_default_for_default_log_levels()

    CONF(project='keystone', version=version,
         default_config_files=config_files)

    config.setup_logging()


def setup_backends(load_extra_backends_fn=lambda: {},
                   startup_application_fn=lambda: None):
    drivers = backends.load_backends()
    drivers.update(load_extra_backends_fn())
    res = startup_application_fn()
    drivers.update(dependency.resolve_future_dependencies())
    return drivers, res