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

import sys
import socket
import time
import logging


def udp_command_send(upc_addr, upc_command, data, timeout=2):
    """通过UDP发送数据并接收响应"""
    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.settimeout(timeout)
    
    try:
        logging.debug(f"尝试发送UDP数据到 {{upc_addr[0]}}:{{upc_addr[1]}}...")
        
        logging.info(f"正在发送UDP命令 '{{upc_command}}' 到 {{upc_addr}}: {{data!r}} (原始字节)")
        sock.sendto(data, upc_addr)
        logging.debug(f"UDP数据发送完成。")

        # 尝试接收响应
        recv_buffer_size = 1024
        try:
            logging.debug(f"等待从 {{upc_addr}} 接收UDP响应...")
            response_bytes, addr = sock.recvfrom(recv_buffer_size)
            if response_bytes:
                logging.info(f"从 {{addr}} 收到UDP原始响应字节: {{response_bytes!r}}")
                try:
                    response_str = response_bytes.decode('utf-8', errors='ignore')
                    logging.info(f"从 {{addr}} 收到UDP解码响应字符串: '{{response_str}}'")
                except Exception as decode_e:
                    logging.warning(f"解码UDP响应时发生错误: {{decode_e}}")
            else:
                logging.info(f"未收到UDP响应数据。")
        except socket.timeout:
            logging.warning(f"接收UDP响应超时（设备可能不返回响应，这通常是正常的）。")
        except OSError as recv_e:
            logging.error(f"接收UDP响应时发生网络错误: {{recv_e}}")

        sock.close()
        logging.debug(f"UDP socket关闭。")
        return True
    except OSError as e:
        logging.error(f"UDP命令 '{{upc_command}}' 发送至 {{upc_addr}} 失败: {{e}}")
        return False
    finally:
        try:
            sock.close()
        except:
            pass


# 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
    
    # 查找指令定义
    if upc_command in COMMAND_DEFINITIONS:
        hex_str = COMMAND_DEFINITIONS[upc_command]
        data = bytes.fromhex(hex_str)
    
    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 udp_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"
                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 = int(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, UPC_DEV_PORT)

    # UDP 是无连接的，无需像TCP那样预先检查端口连通性
    # 直接发送数据
    logging.info(f"UDP模式：准备发送命令到 {{UPC_ADDR}}")
    upc_send_command(UPC_ADDR, upc_command, LOG_FILE)