package com.hdl.sdk.link.core.utils;

import android.text.TextUtils;

/**
 * Created by Tong on 2021/9/22.
 * 解析Link协议
 */
public class ProtocolParse {

    private String topic;
    private int length;
    private int dataIndex;

    public ProtocolParse(byte[] bytes) {
        parse(bytes);
    }

    private void parse(byte[] bytes) {
        try {
            String[] split = new String(bytes, "utf-8").split("\r\n");
            setTopic(parseTopic(split));
            setLength(parseLength(split));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static String parseTopic(String[] bytes) {
        try {
            for (String s : bytes) {
                if (s.startsWith("Topic:")) {
                    return s.replace("Topic:", "");
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    private static int parseLength(String[] bytes) {
        try {
            for (String s : bytes) {
                if (!TextUtils.isEmpty(s) && s.startsWith("Length:")) {
                    return Integer.parseInt(s.replace("Length:", ""));
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return -1;
    }



    public String getTopic() {
        return topic;
    }

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

    public int getLength() {
        return length;
    }

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


}