#!/usr/bin/env python
# Copyright European Organization for Nuclear Research (CERN)
#
# 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
#
# Authors:
# - Vincent Garonne, <vincent.garonne@cern.ch>, 2012
# - Mario Lassnig, <mario.lassnig@cern.ch>, 2013-2015
# - Cedric Serfon, <cedric.serfon@cern.ch>, 2013
# - Wen Guan, <wen.guan@cern.ch>, 2014-2015

"""
Conveyor is a daemon to manage file transfers.
"""

import argparse
import signal

from rucio.daemons.conveyor.submitter import run, stop

if __name__ == "__main__":

    signal.signal(signal.SIGTERM, stop)

    parser = argparse.ArgumentParser()
    parser.add_argument("--run-once", action="store_true", default=False,
                        help='One iteration only')
    parser.add_argument("--process", action="store", default=0, type=int,
                        help='Concurrency control: current processes number')
    parser.add_argument("--total-processes", action="store", default=1, type=int,
                        help='Concurrency control: total number of processes')
    parser.add_argument("--total-threads", action="store", default=1, type=int,
                        help='Concurrency control: total number of threads per process')
    parser.add_argument("--bulk", action="store", default=100, type=int,
                        help='Bulk control: number of requests')
    parser.add_argument("--group-bulk", action="store", default=1, type=int,
                        help='Group control: number of requests per group')
    parser.add_argument("--group-policy", action="store", default='rule', type=str,
                        help='Group control: policy used to group. enum{rule, dest, src_dest, rule_src_dest}')
    parser.add_argument("--mock", action="store_true", default=False,
                        help='Fake source replicas for requests')
    parser.add_argument('--fts-source-strategy', action="store", default='auto', type=str,
                        help='FTS source strategy')
    parser.add_argument('--exclude-rses', action="store", default=None, type=str,
                        help='RSE expression to exclude')
    parser.add_argument('--include-rses', action="store", default=None, type=str,
                        help='RSE expression to include')
    parser.add_argument('--rses', nargs='+', type=str,
                        help='Explicit list of RSEs to include')
    parser.add_argument('--activities', nargs='+', type=str,
                        help='Explicit list of activities to include')
    parser.add_argument('--sleep-time', action="store", default=600, type=int,
                        help='Seconds to sleep if few requests')
    parser.add_argument('--max-sources', action="store", default=4, type=int,
                        help='Maximum source replicas per FTS job')
    parser.add_argument("--retry-other-fts", action="store_true", default=False,
                        help='retry on a different FTS')
    args = parser.parse_args()

    try:
        run(once=args.run_once,
            process=args.process,
            total_processes=args.total_processes,
            total_threads=args.total_threads,
            bulk=args.bulk,
            group_bulk=args.group_bulk,
            mock=args.mock,
            include_rses=args.include_rses,
            exclude_rses=args.exclude_rses,
            rses=args.rses,
            fts_source_strategy=args.fts_source_strategy,
            activities=args.activities,
            sleep_time=args.sleep_time,
            max_sources=args.max_sources,
            retry_other_fts=args.retry_other_fts)
    except KeyboardInterrupt:
        stop()
