#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
# Auto-generated from template. DO NOT EDIT DIRECTLY!

import sys
import socket
import time
import logging
import telnetlib
import re


def is_valid_hex(hex_str):
    """检查字符串是否为有效的16进制格式（只包含0-9,a-f,A-F且长度为偶数）"""
    if not hex_str:
        return False
    # 必须是偶数长度
    if len(hex_str) % 2 != 0:
        return False
    # 只能包含16进制字符
    return bool(re.match(r'^[0-9a-fA-F]+$', hex_str))


def tcp_command_send(upc_addr, upc_command, data):
    """负责发送数据和接收一次响应"""
    timeout = 2
    socket.setdefaulttimeout(timeout)
    try:
        client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        logging.debug(f"尝试连接到 {{upc_addr[0]}}:{{upc_addr[1]}}...")
        client.connect(upc_addr)
        logging.debug(f"成功连接到 {{upc_addr[0]}}:{{upc_addr[1]}}。")
        
        logging.info(f"正在发送命令 '{{upc_command}}' 到 {{upc_addr}}: {{data!r}} (原始字节)")
        client.send(data)
        logging.debug(f"数据发送完成。")

        recv_buffer_size = 1024
        response_bytes = b''
        try:
            logging.debug(f"尝试从 {{upc_addr}} 接收响应数据...")
            response_bytes = client.recv(recv_buffer_size)
            if response_bytes:
                logging.info(f"从 {{upc_addr}} 收到原始响应字节: {{response_bytes!r}}")
                try:
                    response_str = response_bytes.decode('utf-8', errors='ignore')
                    logging.info(f"从 {{upc_addr}} 收到解码响应字符串: '{{response_str}}'")
                except Exception as decode_e:
                    logging.warning(f"解码从 {{upc_addr}} 收到的响应时发生错误: {{decode_e}}")
            else:
                logging.info(f"从 {{upc_addr}} 未收到响应数据 (连接可能已关闭或设备未发送)。")
        except socket.timeout:
            logging.warning(f"从 {{upc_addr}} 接收响应超时。")
        except OSError as recv_e:
            logging.error(f"从 {{upc_addr}} 接收响应时发生网络错误: {{recv_e}}")

        client.close()
        logging.debug(f"连接关闭。")
        return True
    except OSError as e:
        logging.error(f"命令 '{{upc_command}}' 发送至 {{upc_addr}} 失败: {{e}}")
        return False


# 指令定义表（从配置文件读取）
COMMAND_DEFINITIONS = {command_definitions}


def upc_send_command(upc_addr, upc_command, log_file):
    """将命令发送给终端设备"""
    data = None
    send_type = "unknown"
    
    # 查找指令定义
    if upc_command in COMMAND_DEFINITIONS:
        cmd_value = COMMAND_DEFINITIONS[upc_command]
        # 判断是否为有效的16进制格式
        if is_valid_hex(cmd_value):
            data = bytes.fromhex(cmd_value)
            send_type = "hex"
            logging.debug(f"命令 '{{upc_command}}' 的值 '{{cmd_value}}' 识别为16进制格式")
        else:
            # 作为纯字符串发送
            data = cmd_value.encode('utf-8')
            send_type = "string"
            logging.debug(f"命令 '{{upc_command}}' 的值 '{{cmd_value}}' 识别为字符串格式")
    
    if data is None:
        datetime_str = time.strftime(ISOTIMEFORMAT, time.localtime(time.time()))
        logstr = f"{{datetime_str}} 未知命令: {{upc_command}}，没有对应的数据可发送。"
        logging.warning(logstr)
        print(logstr)
    else:
        i = 1
        while i <= 3:  # 尝试发送3次
            if tcp_command_send(upc_addr, upc_command, data):
                datetime_str = time.strftime(ISOTIMEFORMAT, time.localtime(time.time()))
                logstr = f"{{datetime_str}} {{upc_command}}命令第{{i}}次发送成功 ({{send_type}})"
                logging.info(logstr)
                return
            else:
                datetime_str = time.strftime(ISOTIMEFORMAT, time.localtime(time.time()))
                logstr = f"{{datetime_str}} {{upc_command}}命令第{{i}}次发送失败，3秒后进行第{{i+1}}次尝试"
                logging.warning(logstr)
                time.sleep(3)
            i = i + 1
        
        datetime_str = time.strftime(ISOTIMEFORMAT, time.localtime(time.time()))
        logstr = f"{{datetime_str}} {{upc_command}}命令在3次尝试后发送均失败！"
        logging.error(logstr)


if __name__ == '__main__':
    ISOTIMEFORMAT = '%Y-%m-%d %X'
    
    UPC_DEV_IP = sys.argv[1]
    UPC_DEV_PORT = sys.argv[2]
    upc_command = sys.argv[3]
    LOG_FILE = sys.argv[4]

    logging.basicConfig(filename=LOG_FILE, filemode="a", level=logging.DEBUG)
    UPC_ADDR = (UPC_DEV_IP, int(UPC_DEV_PORT))

    # 验证端口是否能Telnet通
    try:
        logging.debug(f"尝试通过 Telnet 检查端口 {{UPC_ADDR[0]}}:{{UPC_ADDR[1]}} 可访问性...")
        tn = telnetlib.Telnet(UPC_DEV_IP, UPC_DEV_PORT)
        tn.close()
        logging.debug(f"端口 {{UPC_ADDR[0]}}:{{UPC_ADDR[1]}} Telnet 检查通过。")
    except OSError as e:
        datetime_str = time.strftime(ISOTIMEFORMAT, time.localtime(time.time()))
        logstr = f"!!!!!ERROR!!!!!{{datetime_str}} {{UPC_ADDR}} 端口无法访问，请检查设备或网络连接: {{e}}!!!!!"
        logging.error(logstr)
        print(logstr)
    except Exception as e:
        datetime_str = time.strftime(ISOTIMEFORMAT, time.localtime(time.time()))
        logstr = f"!!!!!ERROR!!!!!{{datetime_str}} {{UPC_ADDR}} Telnet检查时发生未知错误: {{e}}!!!!!"
        logging.error(logstr, exc_info=True)
        print(logstr)
    else:
        upc_send_command(UPC_ADDR, upc_command, LOG_FILE)