package com.dy.rtuMw3rd.tcp4Bjnl;

import com.alibaba.fastjson2.JSON;
import com.dy.common.springUtil.SpringContextUtil;
import com.dy.rtuMw3rd.tcp4Bjnl.deal.BjnlDealer;
import com.dy.rtuMw3rd.tcp4Bjnl.protocol.BjnlProtocol;
import com.dy.rtuMw3rd.tcp4Bjnl.protocol.Result;
import lombok.extern.slf4j.Slf4j;
import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.CumulativeProtocolDecoder;
import org.apache.mina.filter.codec.ProtocolDecoderOutput;

import java.io.IOException;

/**
 * @Author: liurunyu
 * @Date: 2025/03/18 14:20
 * @Description
 */
@Slf4j
public class NetDataDecoder extends CumulativeProtocolDecoder {

    /**
     * 对网络传输来的数据进行解码
     */
    protected boolean doDecode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws IOException, Exception{
        int remain = in.remaining() ;
        if(remain > 0){
            byte[] bs = new byte[remain];
            in.get(bs) ;
            in.position(0) ;
            String s = new String(bs, "UTF-8") ;
            if(s != null && s.length() > 0){
                s = s.trim() ;
            }
            this.receive(s);
        }
        return true;
    }


    private void receive(String json){
        log.info("北京农林--收到数据：" + json);
        try{
            if(JSON.isValid(json)){
                Result res = JSON.parseObject(json, Result.class) ;
                if(res.status != null && res.status.code != null && res.status.code.equals(BjnlProtocol.SuccessCode)){
                    if(res.status.type != null){
                        if(res.status.type.equals(BjnlProtocol.ResultTypeAuth)){
                            forLogin(res) ;
                        }else if(res.status.type.equals(BjnlProtocol.ResultTypeData)){
                            forData(res) ;
                        }else if(res.status.type.equals(BjnlProtocol.ResultTypeControl)){
                            forControl(res) ;
                        }else{
                            log.error("北京农林--服务端返回数据其类型不可识别：" + res.status.type);
                        }
                    }
                }else{
                    //可能推送的数据中不包含status子数据
                    if(res.data != null && res.data.length() > 0){
                        forData(res) ;
                    }else{
                        log.error("北京农林--服务端返回失败信息：" + json);
                    }

                }
            }else{
                log.error("北京农林--服务端返回数据非有效JSON数据，\n数据为" + json);
            }
        }catch (Exception e){
            log.error("北京农林--服务端返回数据转JSON异常，\n数据为" + json ,e);
        }
    }

    private void forLogin(Result res){
        Worker.getInstance().setLogined();
        BjnlDealer d = SpringContextUtil.getBean(BjnlDealer.class) ;
        d.logined(res);
    }

    private void forData(Result res){
        BjnlDealer d = SpringContextUtil.getBean(BjnlDealer.class) ;
        d.receiveData(res);
    }

    private void forControl(Result res){
        BjnlDealer d = SpringContextUtil.getBean(BjnlDealer.class) ;
        d.controlRes(res);
    }
}