package com.hdl.sdk.connect.bean;

import android.text.TextUtils;

import androidx.annotation.NonNull;

import com.hdl.sdk.common.utils.LogUtils;
import com.hdl.sdk.connect.config.HDLLinkConfig;
import com.hdl.sdk.common.utils.ByteUtils;
import com.hdl.sdk.connect.utils.AesUtil;

/**
 * Created by Tong on 2021/9/29.
 */
public class LinkRequest {
    private String topic;
    private String data;

    private int length;

    public LinkRequest() {
    }

    public LinkRequest(String topic, String data) {
        this.topic = topic;
        setData(data);
    }

    public String getTopic() {
        return topic;
    }

    public void setTopic(String topic) {
        this.topic = topic;
    }

    public String getData() {
        return data;
    }

    public void setData(String data) {
        this.data = data;
        if (!TextUtils.isEmpty(data)) {
            setLength(getBytesLength(data));
        } else {
            setLength(0);
        }

    }

    public int getLength() {
        return length;
    }

    private void setLength(int length) {
        this.length = length;
    }

    @NonNull
    @Override
    public String toString() {
        return "Topic:" +
                getTopic() +
                "\r\n" +
                "Length:" +
                getLength() +
                "\r\n\r\n" +
                getData();
    }


    private int getBytesLength(String str) {
        return ByteUtils.stringToBytes(str).length;
    }


    /**
     * 获取发送数据byte
     *
     * @return
     */
    public byte[] getSendBytes() {
        try {
            //判断是否需要加密
            if (HDLLinkConfig.getInstance().ifNeedEncrypt(topic)) {
                //需要加密
                byte[] dataBytes = AesUtil.aesEncrypt(ByteUtils.stringToBytes(data), HDLLinkConfig.getInstance().getLocalSecret());
                String headString = "Topic:" + getTopic() + "\r\n" + "Length:" + dataBytes.length + "\r\n" + "\r\n";
                byte[] headBytes = headString.getBytes("utf-8");
                byte[] sendBytes = ByteUtils.concatBytes(headBytes, dataBytes);
                LogUtils.i("发送数据：\r\n" + headString + "\r\n" + data);
                return sendBytes;

            } else {
                String sendString = this.toString();
                LogUtils.i("发送数据：\r\n" + sendString);
                return sendString.getBytes("utf-8");
            }

        } catch (Exception e) {
            return new byte[]{};
        }
    }
}