package com.dy.common.mw.protocol.p206V202404.parse;

import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONObject;
import com.dy.common.mw.protocol.*;
import com.dy.common.mw.protocol.p206V202404.CodeV202404;
import com.dy.common.mw.protocol.p206V202404.ParseParamsForDownV202404;
import com.dy.common.mw.protocol.p206V202404.downVos.ComCd21Vo;
import com.dy.common.mw.protocol.p206V202404.parse.global.GlCreate;
import com.dy.common.util.ByteUtil;

import java.nio.charset.StandardCharsets;

@AnnotationCodeDown(ifAny={
        CodeV202404.cd_21
})
public class Cd_21_Down implements CodeParse {

    @Override
    public MidResult[] parse(Boolean isLowPower, CodeParseParams params, CodeParseCallback callback) throws Exception {
        ParseParamsForDownV202404 para = (ParseParamsForDownV202404) params ;
        byte[] bs = this.doParse(para) ;

        MidResultToRtu midRs = new MidResultToRtu() ;
        midRs.protocolName = para.protocolName ;//协议名称
        midRs.rtuResultSendWebUrl = para.rtuResultSendWebUrl ;
        midRs.rtuAddr = para.rtuAddr ;//Rtu地址
        midRs.commandId = para.commandId ;//命令ID，发起命令的客户端(web端)生成，以匹配命令结果
        midRs.downCode = para.commandCode ;//下行命令功能码;
        midRs.downBuffer = bs ;//下行命令数据
        midRs.downBufHex = ByteUtil.bytes2Hex(bs, true) ;//下行命令数据十六进制形式
        midRs.hasResponse = true ;//是否有应答
        midRs.maxSendTimes = null ;//命令最大发送次数(当收不到应答时，将重发)，如果不设置，命令缓存器进行补充设置
        midRs.isCachForOffLine = false ;//RTU不在线，命令是否缓存，低功耗时为true

        midRs.isSendFirst = false ;//命令应答，首先发送，防止RTU重新上报
        if(isLowPower != null && isLowPower.booleanValue()){
            //低功耗时，尽快发送
            midRs.isQuickSend = true ;
        }

        return new MidResult[]{midRs} ;
    }
    /**
     * 构造下行数据
     * @param para 参数
     * @return 字节数组
     * @throws Exception 异常
     */
    public byte[] doParse(ParseParamsForDownV202404 para) throws Exception {
        byte[] bytes = GlCreate.createStart2Cd(para.rtuAddr, para.commandCode);
        if(para.param != null){
            JSONObject obj = (JSONObject)para.param;
            String json = obj.toJSONString();
            ComCd21Vo cvo = JSON.parseObject(json, ComCd21Vo.class) ;
            if(cvo == null){
                throw new Exception("json转ComCd21Vo为null") ;
            }
            if(cvo.channel == null){
                throw new Exception("IP通道号不能为空") ;
            }
            if(cvo.channel != 1 && cvo.channel != 2){
                throw new Exception("IP通道号只能是1或2") ;
            }
            if(cvo.ip == null || cvo.ip.equals("")){
                throw new Exception("IP不能为空") ;
            }
            if(cvo.ip.length() > 15){
                throw new Exception("IP最大长度是15个字符") ;
            }
            if(cvo.port < 0 || cvo.port > 65535){
                throw new Exception("端口号必须是0~65535范围内的整数") ;
            }

            byte[] ipBs = cvo.ip.getBytes(StandardCharsets.UTF_8) ;
            byte[] portBs = ("" + cvo.port).getBytes(StandardCharsets.UTF_8) ;

            byte[] bs = new byte[4] ;
            int index = 0 ;
            bs[index] = (byte)(Integer.parseInt(cvo.controllerType, 16));

            index ++ ;
            bs[index] = cvo.projectNo.byteValue() ;

            index ++ ;
            bs[index] = cvo.channel.byteValue() ;

            index ++ ;
            bs[index] = (byte)((ipBs.length << 4) + portBs.length) ;

            bytes = ByteUtil.bytesMerge(bytes, bs) ;

            bytes = ByteUtil.bytesMerge(bytes, ipBs) ;
            bytes = ByteUtil.bytesMerge(bytes, portBs) ;


            byte[] bs1 = new byte[7] ;
            index = 0;
            GlCreate.createPw(bs1, index);

            index += 2 ;
            GlCreate.createS2D(bs1, index) ;

            index += 4 ;
            bs1[index] = 0 ; //时延
            bytes = ByteUtil.bytesMerge(bytes, bs1) ;

        }else{
            throw new Exception("下行命令参数据为null") ;
        }
        GlCreate.createLen(bytes);//长度放字节数组中

        byte[] bsTail = GlCreate.createCrcTail(bytes) ;//CRC和尾

        bytes = ByteUtil.bytesMerge(bytes, bsTail) ;

        return bytes ;
    }


}