#!/usr/bin/env python
# Copyright 2014-2020 CERN for the benefit of the ATLAS collaboration.
#
# 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.
#
# Authors:
# - Cedric Serfon <cedric.serfon@cern.ch>, 2014
# - Vincent Garonne <vincent.garonne@cern.ch>, 2018
# - Mario Lassnig <mario.lassnig@cern.ch>, 2018
# - Joaquin Bogado <jbogado@linti.unlp.edu.ar>, 2019
# - Benedikt Ziemons <benedikt.ziemons@cern.ch>, 2020

'''
Automatix (Dataset injector) Daemon
'''

import argparse
import signal

from rucio.daemons.automatix.automatix import run, stop


def get_parser():
    """
    Returns the argparse parser.
    """
    parser = argparse.ArgumentParser(description="Automatix is a daemon used to inject random generated files to an RSE. It is used to continuosly check that an RSE is reachable and operating as spected.")
    parser.add_argument("--run-once", action="store_true", default=False, help='Runs one loop iteration')
    parser.add_argument("--input-file", action="store", default=" /opt/rucio/etc/automatix.json", type=str, help='Automatix configuration')
    parser.add_argument("--threads-per-process", action="store", default=1, type=int, help='Total number of workers per process')
    return parser


if __name__ == "__main__":

    # Bind our callback to the SIGTERM signal and run the daemon:
    signal.signal(signal.SIGTERM, stop)

    parser = get_parser()
    args = parser.parse_args()
    print('Start Automatix')
    try:
        run(total_workers=args.threads_per_process, once=args.run_once, inputfile=args.input_file)
    except KeyboardInterrupt:
        stop()
