jsowell-charger-web/jsowell-netty/src/main/java/com/jsowell/netty/handler/ConfirmStartChargingRequestHandler.java

package com.jsowell.netty.handler;

import com.alibaba.fastjson2.JSONObject;
import com.google.common.primitives.Bytes;
import com.jsowell.common.constant.Constants;
import com.jsowell.common.core.domain.ykc.YKCDataProtocol;
import com.jsowell.common.core.domain.ykc.YKCFrameTypeCode;
import com.jsowell.common.util.BytesUtil;
import com.jsowell.common.util.YKCUtils;
import com.jsowell.common.util.id.IdUtils;
import com.jsowell.netty.factory.YKCOperateFactory;
import com.jsowell.pile.service.impl.MemberBasicInfoServiceImpl;
import com.jsowell.pile.vo.uniapp.MemberVO;
import io.netty.channel.Channel;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.math.BigDecimal;

/**
 * 充电桩主动申请启动充电  0x31
 *
 * 启动充电鉴权结果
 * @author JS-ZZA
 * @date 2022/9/19 14:29
 */
@Slf4j
@Component
public class ConfirmStartChargingRequestHandler extends AbstractHandler{
    private final String type = YKCUtils.frameType2Str(YKCFrameTypeCode.REQUEST_START_CHARGING_CODE.getBytes());

    @Autowired
    private MemberBasicInfoServiceImpl memberBasicInfoService;

    @Override
    public void afterPropertiesSet() throws Exception {
        YKCOperateFactory.register(type, this);
    }

    @Override
    public byte[] supplyProcess(YKCDataProtocol ykcDataProtocol, Channel channel) {
        log.info("[===充电桩主动申请启动充电===] param:{}, channel:{}", JSONObject.toJSONString(ykcDataProtocol), channel.toString());
        // 获取消息体
        byte[] msgBody = ykcDataProtocol.getMsgBody();

        int startIndex = 0;
        int length = 16;

        // 桩编码
        startIndex += length;
        length = 7;
        byte[] pileSnByteArr = BytesUtil.copyBytes(msgBody, startIndex, length);
        String pileSn = BytesUtil.bcd2Str(pileSnByteArr);

        // 保存时间
        saveLastTime(pileSn);

        // 枪号
        startIndex += length;
        length = 1;
        byte[] pileConnectorNumByteArr = BytesUtil.copyBytes(msgBody, startIndex, length);
        String connectorCode = BytesUtil.bcd2Str(pileConnectorNumByteArr);

        // 启动方式
        // 0x01 表示通过刷卡启动充电
        // 0x02 表求通过帐号启动充电 （暂不支持）
        // 0x03 表示vin码启动充电
        startIndex += length;
        length = 1;
        byte[] startModeByteArr = BytesUtil.copyBytes(msgBody, startIndex, length);

        // 是否需要密码  0x00 不需要 0x01 需要
        startIndex += length;
        byte[] needPasswordFlagByteArr = BytesUtil.copyBytes(msgBody, startIndex, length);

        // 物理卡号  不足 8 位补 0
        startIndex += length;
        length = 8;
        byte[] cardNumByteArr = BytesUtil.copyBytes(msgBody, startIndex, length);
        String physicsCardNum = BytesUtil.bcd2Str(cardNumByteArr);

        // 输入密码  对用户输入的密码进行16 位MD5 加密，采用小写上传
        startIndex += length;
        length = 16;
        byte[] inputPasswordByteArr = BytesUtil.copyBytes(msgBody, startIndex, length);

        // VIN码
        startIndex += length;
        length = 17;
        byte[] vinCodeByteArr = BytesUtil.copyBytes(msgBody, startIndex, length);


        // 应答
        // 交易流水号
        String serialNum = IdUtils.generateTransactionCode(pileSn, connectorCode);
        byte[] serialNumByteArr = BytesUtil.str2Bcd(serialNum);

        // 逻辑卡号
        String logicCardNum = "00000000";
        byte[] logicCardNumByteArr = BytesUtil.str2Bcd(logicCardNum); // [0, 0, 0, 0]

        // 账户余额  保留两位小数
        MemberVO memberVO = memberBasicInfoService.selectInfoByPhysicsCard(physicsCardNum);
        BigDecimal principalBalance = memberVO.getPrincipalBalance(); // 本金金额
        double accountBalance = principalBalance.add(memberVO.getGiftBalance()).setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
        byte[] accountBalanceByteArr = BytesUtil.str2Bcd(String.valueOf(accountBalance));

        // 鉴权成功标识  0x00 失败 0x01 成功
        byte[] authenticationFlagByteArr= Constants.oneByteArray;

        /**
         * 失败原因
         * 0x01 账户不存在
         * 0x02 账户冻结
         * 0x03 账户余额不足
         * 0x04 该卡存在未结账记录
         * 0x05 桩停用
         * 0x06 该账户不能在此桩上充电
         * 0x07 密码错误
         * 0x08 电站电容不足
         * 0x09 系统中vin 码不存在
         * 0x0A 该桩存在未结账记录
         * 0x0B 该桩不支持刷卡
         */
        byte[] defeatReasonByteArr = Constants.zeroByteArray;

        // 拼装消息体
        byte[] msgBodyByteArr = Bytes.concat(serialNumByteArr, logicCardNumByteArr, accountBalanceByteArr,
                authenticationFlagByteArr, defeatReasonByteArr);

        return getResult(ykcDataProtocol, msgBodyByteArr);

    }
}