package org.yzh.protocol.t808.T8900Lock;

import io.github.yezhihao.protostar.annotation.Field;
import io.github.yezhihao.protostar.annotation.Message;
import org.yzh.commons.util.BytesUtils;
import org.yzh.protocol.basics.JTMessage;
import org.yzh.protocol.commons.JT808;

/**
 * 消息透传 - 蝶阀锁查询命令
 */
public class T8900State {

    @Field(index = 0, length = 2, desc = "锁ID")
    private byte[] lockId;

    @Field(index = 1, length = 1, desc = "命令类型")
    private byte commandType = 0x01;

    @Field(index = 2, length = 1, desc = "校验码")
    private byte checksum;

    public T8900State() {
    }

    public T8900State(String lockIdHex) {
        this.lockId = BytesUtils.hex2bytes(lockIdHex);
        this.checksum = calculateChecksum();
    }

    /**
     * 计算校验和：(aa + aa + 02 + cc) & 0xFF
     */
    public byte calculateChecksum() {
        int sum = lockId[0] & 0xFF;
        sum += lockId[1] & 0xFF;
        sum += commandType & 0xFF;
        //sum += status & 0xFF;
        this.checksum = (byte) (sum & 0xFF);
        return this.checksum;// (byte) (sum & 0xFF); // 取低8位
    }

    // Getters and Setters
    public byte[] getLockId() {
        return lockId;
    }

    public void setLockId(byte[] lockId) {
        this.lockId = lockId;
        this.checksum = calculateChecksum();
    }

    public byte getCommandType() {
        return commandType;
    }

    public void setCommandType(byte commandType) {
        this.commandType = commandType;
        this.checksum = calculateChecksum();
    }

    public byte getChecksum() {
        return checksum;
    }
}