#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4

#
#    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.

"""
Heat Engine Server.  This does the work of actually implementing the API
calls made by the user.  Normal communications is done via the heat API
which then calls into this engine.
"""

import gettext
import eventlet
eventlet.monkey_patch()

import os
import sys
import logging

# If ../heat/__init__.py exists, add ../ to Python search path, so that
# it will override what happens to be installed in /usr/(local/)lib/python...
POSSIBLE_TOPDIR = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
                                   os.pardir,
                                   os.pardir))
if os.path.exists(os.path.join(POSSIBLE_TOPDIR, 'heat', '__init__.py')):
    sys.path.insert(0, POSSIBLE_TOPDIR)

gettext.install('heat', unicode=1)

from heat import rpc
from heat import service
from heat.common import config
from heat.common import utils
from heat.db import api as db_api

logger = logging.getLogger('heat.engine')

if __name__ == '__main__':

    default_manager = 'heat.engine.manager.EngineManager'
    conf = config.HeatEngineConfigOpts()
    conf(project='heat', prog='heat-engine')
    config.FLAGS = conf

    config.setup_logging(conf)
    rpc.configure(conf)
    db_api.configure(conf)

    #utils.monkey_patch()
    server = service.Service.create(binary='heat-engine',
                                    topic='engine',
                                    manager=default_manager,
                                    config=conf)
    service.serve(server)
    service.wait()