import sys
import logging
from cloghandler import ConcurrentRotatingFileHandler
from config.settings import log_config
from controller.controller import Controller


def daemon():
    import os
    # create - fork 1
    try:
        pid = os.fork()
        if pid > 0:
            return pid
    except OSError as error:
        logging.error('fork #1 failed: %d (%s)' %
                      (error.errno, error.strerror))
        return -1
    # it separates the son from the father
    # os.chdir('/opt/pbx')
    os.setsid()
    os.umask(0)
    # create - fork 2
    try:
        pid = os.fork()
        if pid > 0:
            return pid
    except OSError as error:
        logging.error('fork #2 failed: %d (%s)' %
                      (error.errno, error.strerror))
        return -1
    sys.stdout.flush()
    sys.stderr.flush()
    si = open("/dev/null", 'r')
    so = open("/dev/null", 'a+')
    se = open("/dev/null", 'a+')
    os.dup2(si.fileno(), sys.stdin.fileno())
    os.dup2(so.fileno(), sys.stdout.fileno())
    os.dup2(se.fileno(), sys.stderr.fileno())
    return 0


def setlog():
    """
    设置日志格式
    :return:
    """
    rotateHandler = ConcurrentRotatingFileHandler(
        log_config['file_path'], "a", 20 * 1024 * 1024, 100)
    rotateHandler.setLevel(logging.INFO)
    formatter = logging.Formatter(
        '[%(asctime)s] [process:%(process)s] [%(filename)s:%(lineno)d]  %(levelname)s %(message)s')
    rotateHandler.setFormatter(formatter)
    log = logging.getLogger()
    log.addHandler(rotateHandler)
    log.setLevel(logging.INFO)


def main():
    setlog()
    #pid = daemon()
    # if pid:
    #     return pid
    Controller().start()


if __name__ == "__main__":
    main()