package com.sunvote.cmd.upgrade;

import com.sunvote.cmd.BaseCmd;
import com.sunvote.cmd.ICmd;

/**
 * Created by Elvis on 2017/8/11.
 * Email:Eluis@psunsky.com
 * Description:擦除FLASH
 * 模块固件占用的物理FLASH空间，必须先擦除才能重写。
 * App提交给模块：
 * 字节	标识符	描述
 * 1	REQUEST_CMD	0x78 固件升级指令
 * 2	CMD1	3 模块擦除FLASH
 * 3	SECTORH	要擦除的扇区数sector的高位，暂为0
 * 4	SECTORL	要擦除的扇区数sector的低位
 * 在UDP通道中，这个协议暂时用不到
 * 统一把协议写好，以后兼容到RF协议
 */

public class CleanFlashStateRequest extends UpgradeBaseCmd {

    public static final int CMD_LENGTH = 4;

    public CleanFlashStateRequest(){

    }

    public CleanFlashStateRequest(CleanFlashStateResponse response){
        parseCmd(response.toBytes());
        setCmd(REQUEST_CMD);
    }

    /**
     * 固件升级指令
     */
    private byte cmd = REQUEST_CMD;
    /**
     * 3 模块擦除FLASH
     */
    private byte cmd1 = 3;
    /**
     * 擦除的扇区数sector的高位，暂为0
     */
    private byte sectorh ;
    /**
     * 要擦除的扇区数sector的低位
     */
    private byte sectorl ;

    public byte getCmd() {
        return cmd;
    }

    public void setCmd(byte cmd) {
        this.cmd = cmd;
    }

    public byte getCmd1() {
        return cmd1;
    }

    public void setCmd1(byte cmd1) {
        this.cmd1 = cmd1;
    }

    public byte getSectorh() {
        return sectorh;
    }

    public void setSectorh(byte sectorh) {
        this.sectorh = sectorh;
    }

    public byte getSectorl() {
        return sectorl;
    }

    public void setSectorl(byte sectorl) {
        this.sectorl = sectorl;
    }

    @Override
    public byte[] toBytes() {
        byte[] result = new byte[CMD_LENGTH];
        result[0] = cmd;
        result[1] = cmd1;
        result[2] = sectorh ;
        result[3] = sectorl ;

        return result;
    }

    @Override
    public ICmd parseCmd(byte[] source, int start) {
        if(source != null && source.length > start + CMD_LENGTH){
            cmd = source[start];
            cmd1 = source[start+1];
            sectorh = source[start +2];
            sectorl = source[start + 3];
        }
        return this;
    }
}