package com.dy.pipirrComCreator.p206V1;

import com.dy.common.mw.protocol.p206V1.parse.global.GlCreate;
import com.dy.common.util.ByteUtil;
import com.dy.common.util.ByteUtilUnsigned;
import com.dy.common.util.IPUtils;
import com.dy.common.util.NumUtil;

/**
 * @Author: liurunyu
 * @Date: 2025/5/7 11:25
 * @Description
 */
public class P206V1Cd21 extends P206V1Cd {

    public static final String ComCode = "21" ;

    public String checkParams(String ...params){
        if(params.length != 2){
            return "只有IP和端口两个参数" ;
        }
        if(!IPUtils.ipValid(params[0])){
            return "IP地址不正确" ;
        }
        if(IPUtils.internalIp(params[0])){
            return "IP地址必须是外网IP" ;
        }
        if(!NumUtil.isPlusIntNumber(params[1])){
            return "端口号必须是正整数" ;
        }
        int port = Integer.parseInt(params[1]) ;
        if(port < 1 || port > 65535){
            return "端口号必须在1-65535之间" ;
        }
        return null ;
    }
    public String helpInfo() {
        return ComCode + " *...* *...*[Enter](设置服务端IP和端口)" ;
    }
    /**
     * 构造命令数据（十六进制）
     * @return 字符串
     * @throws Exception 异常
     */
    public String hex(String rtuAddr, String ...params) throws Exception {
        byte[] bytes = bs(rtuAddr, params) ;
        return ByteUtil.bytes2Hex(bytes, false) ;
    }

    /**
     * 构造命令数据（字节数组）
     * @return 字节数组
     * @throws Exception 异常
     */
    public byte[] bs(String rtuAddr, String ...params) throws Exception {
        byte[] bytes = createHead(rtuAddr, ComCode, P206V1Cd.CTRL);

        byte n = 0 ;
        byte[] bs = new byte[14] ;
        String[] ip = params[0].split("\\.") ;
        ByteUtilUnsigned.byte2Byte(bs, Byte.parseByte(ip[0]), n++);
        ByteUtilUnsigned.byte2Byte(bs, Byte.parseByte(ip[1]), n++);
        ByteUtilUnsigned.byte2Byte(bs, Byte.parseByte(ip[2]), n++);
        ByteUtilUnsigned.byte2Byte(bs, Byte.parseByte(ip[3]), n++);
        ByteUtilUnsigned.short2Bytes_LE(bs, Short.parseShort(params[1]), n);
        n += 2 ;
        GlCreate.createPw(bs, n);
        n += 2 ;
        GlCreate.createTp(bs, n);

        bytes = ByteUtil.bytesMerge(bytes, bs);

        GlCreate.createLen(bytes);//长度放字节数组中

        byte[] bsTail = GlCreate.createCrcTail4P206(bytes) ;//CRC和尾叠加字节数组中

        bytes = ByteUtil.bytesMerge(bytes, bsTail) ;

        return bytes ;
    }

    public static void main(String[] args) throws Exception {
        String[] ps = new String[]{"1.2.3.4", "123"} ;
        new P206V1Cd21().hex("530115059980", ps) ;
    }
}