package com.auto.lyric.data;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Iterator;
import java.util.List;
import java.util.TreeMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Created by Runt (qingingrunt2010@qq.com) on 2022/5/4.
 */
public class LyricServer {


    // key 时间戳 ， obj  歌词
    private static TreeMap<Integer, LyricObject> lrc_map = new TreeMap<>();

    public static TreeMap<Integer, LyricObject> getLrc_map() {
        return lrc_map;
    }


    /**
     * 读取歌词文件
     * @param file 歌词的路径
     *
     */
    public static void read(String file) {
        TreeMap<Integer, LyricObject> lrc_read =new TreeMap<Integer, LyricObject>();
        String data = "";
        try {
            File saveFile=new File(file);
            // System.out.println("是否有歌词文件"+saveFile.isFile());
            if(!saveFile.isFile()){
                return;
            }
            //System.out.println("bllrc==="+blLrc);
            FileInputStream stream = new FileInputStream(saveFile);//  context.openFileInput(file);

            BufferedReader br = new BufferedReader(new InputStreamReader(stream,"GB2312"));
            while ((data = br.readLine()) != null) {
                readText(data,lrc_read);
            }
            stream.close();
        } catch (FileNotFoundException e) {
        } catch (IOException e) {
        }
        data ="";
        initLrc(lrc_read);

    }

    public static void read(List<String> texts){
        TreeMap<Integer, LyricObject> lrc_read =new TreeMap<Integer, LyricObject>();
        for(String str : texts){
            readText(str,lrc_read);
        }
        initLrc(lrc_read);
    }

    private static void readText(String text,TreeMap<Integer, LyricObject> lrc_read){
        Pattern pattern = Pattern.compile("\\d{2}");
        // System.out.println("++++++++++++>>"+data);
        /*text = text.replace("[","");//将前面的替换成后面的
        text = text.replace("]","@");
        String splitdata[] = text.split("@");//分隔*/
        String regex = "(?<=\\])";
        Pattern compile = Pattern.compile(regex);
        String[] splitdata = compile.split(text,2);//分隔
        if(text.endsWith("]") || splitdata.length == 1){

            String str = text;
            str = str.replace("[","");
            str = str.replace("]","");
            str = str.replace(":",".");
            str = str.replace(".","@");
            String timedata[] =str.split("@");
            Matcher matcher = pattern.matcher(timedata[0]);
            if(timedata.length==3 && matcher.matches()){
                int m = Integer.parseInt(timedata[0]);  //分
                int s = Integer.parseInt(timedata[1]);  //秒
                int ms = Integer.parseInt(timedata[2]); //毫秒
                int currTime = (m*60+s)*1000+ms*10;
                LyricObject item1= new LyricObject();
                item1.begintime = currTime;
                item1.lrc       = "";
                lrc_read.put(currTime,item1);
            }
        } else{
            String lrcContenet = splitdata[1];
            String tmpstr = splitdata[0];
            tmpstr = tmpstr.replace("[","");
            tmpstr = tmpstr.replace("]","");
            tmpstr = tmpstr.replace(":",".");
            tmpstr = tmpstr.replace(".","@");
            String timedata[] =tmpstr.split("@");
            Matcher matcher = pattern.matcher(timedata[0]);
            if(timedata.length==3 && matcher.matches()){
                int m = Integer.parseInt(timedata[0]);  //分
                int s = Integer.parseInt(timedata[1]);  //秒
                int ms = Integer.parseInt(timedata[2]); //毫秒
                int currTime = (m*60+s)*1000+ms*10;
                LyricObject item1= new LyricObject();
                item1.begintime = currTime;
                item1.lrc       = lrcContenet;
                lrc_read.put(currTime,item1);// 将currTime当标签  item1当数据 插入TreeMap里
            }
        }
    }

    /*
     * 遍历hashmap 计算每句歌词所需要的时间
     */
    private static void initLrc(TreeMap<Integer, LyricObject> lrc_read){
        lrc_map.clear();
        Iterator<Integer> iterator = lrc_read.keySet().iterator();
        LyricObject oldval  = null;
        int i =0;
        for(Integer key : lrc_read.keySet()){
            LyricObject val = lrc_read.get(key);
            if (oldval == null) {
                oldval = val;
            } else {
                LyricObject item1= new LyricObject();
                item1  = oldval;
                item1.timeline = val.begintime-oldval.begintime;
                lrc_map.put(new Integer(i), item1);
                i++;
                oldval = val;
            }
            if (lrc_read.size() > i) {
                lrc_map.put(new Integer(i), val);
            }
        }
    }


}