#!/usr/bin/env python
# Copyright 2013, 2014 IBM Corp.

"""Starter script for the PowerVC cinder-volume Service."""

import os
import sys
import eventlet
import traceback

# If ../powervc/__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, 'powervc', '__init__.py')):
    sys.path.insert(0, POSSIBLE_TOPDIR)

from oslo import i18n

# TODO RYKAL
# This should go in the base __init__ folder I think
i18n.install('cinder')

# NOTE: Import powervc driver common config at the very beginning to parse
# AMQP.
from powervc.common import config

from cinder import utils
from cinder.openstack.common import log as logging
# Currently cinder service uses threading instead of eventlet's event,
# This causes if you don't monkey patch threading, it will hang there
# all the time. For detail, check this fix in incubator project:
# https://github.com/openstack/oslo-incubator/commit/\
# 1e7007824374842bc8108dff5e5e2694e12932b2
# Will create a bug to cinder to fix this. Temporarily fix is to replace
# cinder service instead of nova service in 1365373.
"""Need to patch nova logging with cinder logging, or it will throw
cfg already parsed error"""
import nova.openstack.common as nova_common
nova_common.log = logging
from nova.openstack.common import service

from cinder.common import config as cinder_config
# NOTE: parse config before import manager
config.parse_power_config(sys.argv, 'cinder')

from powervc.volume.manager import manager

eventlet.patcher.monkey_patch(os=False, socket=True, time=True)

logging.setup('powervc')


LOG = logging.getLogger(__name__)

if __name__ == '__main__':
    try:
        logging.setup('powervc')
        utils.monkey_patch()
        LOG.info(_('Launching PowerVC Driver StorageManager service...'))
        launcher = service.ServiceLauncher()
        launcher.launch_service(manager.PowerVCCinderManager())
        launcher.wait()
        LOG.info(_('PowerVC Driver StorageManager service ended'))
    except Exception:
        traceback.print_exc()
        raise