package org.yzh.protocol.t808.T8900Lock;
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import io.github.yezhihao.protostar.annotation.Field;
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import lombok.Data;
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//import org.yzh.commons.util.BytesUtils;
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/**
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* 蝶阀锁协议数据结构
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* 格式: aa aa 02 cc bb
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*/
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@Data
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public class ValveLockProtocol {
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public static final Integer key = 0x41;
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@Field(desc = "锁ID", length = 2)
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private byte[] lockId;
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@Field(desc = "固定值", length = 1)
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private final byte fixedValue = 0x02;
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@Field(desc = "锁芯状态", length = 1)
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private byte status;
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@Field(desc = "校验和", length = 1)
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private byte checksum;
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// 锁状态常量
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public static final byte STATUS_OPEN = 0x01; // 开锁状态
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public static final byte STATUS_CLOSE = 0x02; // 关锁状态
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/**
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* 计算校验和：(aa + aa + 02 + cc) & 0xFF
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*/
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public void calculateChecksum() {
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int sum = lockId[0] & 0xFF;
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sum += lockId[1] & 0xFF;
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sum += fixedValue & 0xFF;
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sum += status & 0xFF;
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this.checksum = (byte) (sum & 0xFF); // 取低8位
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}
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/**
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* 验证校验和
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*/
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public boolean verifyChecksum() {
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int sum = lockId[0] & 0xFF;
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sum += lockId[1] & 0xFF;
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sum += fixedValue & 0xFF;
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sum += status & 0xFF;
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byte expected = (byte) (sum & 0xFF);
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return expected == checksum;
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}
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// /**
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// * 从16进制字符串创建锁ID
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// */
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// public static byte[] createLockId(String hexString) {
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// return BytesUtils.hex2bytes(hexString);
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// }
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}
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