#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
# Auto-generated from template. DO NOT EDIT DIRECTLY!
# Device: 设备125-TCP (dev2)

import time
import logging
import os
import socket
import sys

# ====== 配置参数（从配置文件读取）======
TARGET_IP = '192.168.8.9'
TARGET_PORT = 10129
LOG_FILE = '/home/smart/pythonPJ/upc_resent/log/crond-dev2.log'
RESTART_COMMAND = "/usr/bin/python3 /home/smart/pythonPJ/upc_resent/bin/dev2.py &"
DEVICE_ID = 'dev2'
# =========================

ISOTIMEFORMAT = '%Y-%m-%d %X'

logging.basicConfig(filename=LOG_FILE, filemode="a", level=logging.DEBUG,
                    format='%(asctime)s - %(levelname)s - %(message)s', datefmt=ISOTIMEFORMAT)


def is_port_open(ip, port):
    """检查指定IP和端口是否可达"""
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.settimeout(1)
    try:
        logging.debug(f"尝试连接到 {ip}:{port}...")
        s.connect((ip, int(port)))
        s.shutdown(socket.SHUT_RDWR)
        print(f"[{DEVICE_ID}] 端口 {port} is open")
        logging.info(f"端口 {port} is open")
        return True
    except (OSError, socket.timeout) as e:
        print(f"[{DEVICE_ID}] 端口 {port} is down")
        logging.warning(f"端口 {port} 检查失败: {e}，尝试重启程序")
        logging.info(f"执行重启命令: {RESTART_COMMAND}")
        os.system(RESTART_COMMAND)
        return False
    except ValueError:
        print(f"错误: 端口 '{port}' 不是有效的数字。")
        logging.error(f"端口 '{port}' 不是有效的数字。")
        return False
    finally:
        s.close()


if __name__ == '__main__':
    logging.info(f"[{DEVICE_ID}] 启动端口检查程序，检查 {TARGET_IP}:{TARGET_PORT}")
    print(f"[{DEVICE_ID}] 启动端口检查程序，检查 {TARGET_IP}:{TARGET_PORT}")
    is_port_open(TARGET_IP, TARGET_PORT)