#!/usr/bin/env python3

import argparse
import logging
import importlib
import sys
import os
import multiprocessing as mp


COMMANDS = ['api', 'scheduler', 'host', 'filescanner', 'imagescanner', 'metadata']

if __name__ == "__main__":
    logging.basicConfig(level=logging.DEBUG,
                    format='%(pathname)s:%(lineno)d -- %(levelname)-8s %(message)s',
                    filename='/var/log/ucloud.log', filemode='a')

    logger = logging.getLogger("ucloud")

    arg_parser = argparse.ArgumentParser(prog='ucloud',
                                         description='Open Source Cloud Management Software')
    arg_parser.add_argument('-c', '--conf-dir', help="Configuration directory")
    arg_parser.add_argument('component', choices=COMMANDS)
    arg_parser.add_argument('component_args', nargs='*')
    args = arg_parser.parse_args()

    if args.conf_dir:
        os.environ['UCLOUD_CONF_DIR'] = args.conf_dir

    try:
        mp.set_start_method('spawn')
        name = args.component
        mod = importlib.import_module("ucloud.{}.main".format(name))
        main = getattr(mod, "main")
        main(*args.component_args)

    except Exception as e:
        logger.exception(e)
        print(e)