#!/usr/bin/env python
#
import os
import signal
import subprocess
import sys

import redis_lock
from redis import Redis, Sentinel, ConnectionPool

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
APPS_DIR = os.path.join(BASE_DIR, 'apps')
CERTS_DIR = os.path.join(BASE_DIR, 'data', 'certs')

sys.path.insert(0, APPS_DIR)
from jumpserver import settings

os.environ.setdefault('PYTHONOPTIMIZE', '1')
if os.getuid() == 0:
    os.environ.setdefault('C_FORCE_ROOT', '1')

connection_params = {}

if settings.REDIS_USE_SSL:
    connection_params['ssl'] = settings.REDIS_USE_SSL
    connection_params['ssl_cert_reqs'] = settings.REDIS_SSL_REQUIRED
    connection_params['ssl_keyfile'] = settings.REDIS_SSL_KEY
    connection_params['ssl_certfile'] = settings.REDIS_SSL_CERT
    connection_params['ssl_ca_certs'] = settings.REDIS_SSL_CA

REDIS_SENTINEL_SERVICE_NAME = settings.REDIS_SENTINEL_SERVICE_NAME
REDIS_SENTINELS = settings.REDIS_SENTINELS
REDIS_SENTINEL_PASSWORD = settings.REDIS_SENTINEL_PASSWORD
REDIS_SENTINEL_SOCKET_TIMEOUT = settings.REDIS_SENTINEL_SOCKET_TIMEOUT
if REDIS_SENTINEL_SERVICE_NAME and REDIS_SENTINELS:
    connection_params['sentinels'] = REDIS_SENTINELS
    connection_params['password'] = settings.REDIS_PASSWORD
    sentinel_client = Sentinel(
        **connection_params, sentinel_kwargs={
            'ssl': settings.REDIS_USE_SSL,
            'ssl_cert_reqs': settings.REDIS_SSL_REQUIRED,
            'ssl_keyfile': settings.REDIS_SSL_KEY,
            'ssl_certfile': settings.REDIS_SSL_CERT,
            'ssl_ca_certs': settings.REDIS_SSL_CA,
            'password': REDIS_SENTINEL_PASSWORD,
            'socket_timeout': REDIS_SENTINEL_SOCKET_TIMEOUT
        }
    )
    redis_client = sentinel_client.master_for(REDIS_SENTINEL_SERVICE_NAME)
else:
    REDIS_PROTOCOL = 'rediss' if connection_params.pop('ssl', False) else 'redis'
    REDIS_LOCATION_NO_DB = '%(protocol)s://:%(password)s@%(host)s:%(port)s' % {
        'protocol': REDIS_PROTOCOL,
        'password': settings.REDIS_PASSWORD_QUOTE,
        'host': settings.REDIS_HOST,
        'port': settings.REDIS_PORT,
    }
    pool = ConnectionPool.from_url(REDIS_LOCATION_NO_DB, **connection_params)
    redis_client = Redis(connection_pool=pool)

scheduler = "django_celery_beat.schedulers:DatabaseScheduler"
processes = []
cmd = [
    'celery',
    '-A', 'ops',
    'beat',
    '-l', 'INFO',
    '--scheduler', scheduler,
    '--max-interval', '60'
]


def stop_beat_process(sig, frame):
    for p in processes:
        os.kill(p.pid, 15)


def main():
    # 父进程结束通知子进程结束
    signal.signal(signal.SIGTERM, stop_beat_process)

    with redis_lock.Lock(redis_client, name="beat-distribute-start-lock", expire=60, auto_renewal=True):
        print("Get beat lock start to run it")
        process = subprocess.Popen(cmd, cwd=APPS_DIR)
        processes.append(process)
        process.wait()


if __name__ == '__main__':
    main()