package com.auto.lyric.widgets;

import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Typeface;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.util.AttributeSet;
import android.widget.TextView;

import com.auto.lyric.R;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * 歌词
 * Created by Runt (qingingrunt2010@qq.com) on 2022/4/30.
 */
public class LyricView extends androidx.appcompat.widget.AppCompatTextView {
    private Paint mPaint;
    private float mX;
    private Paint mPathPaint;
    public int index = 0;
    private List<Sentence>  list;
    public float mTouchHistoryY;
    private int mY;
    private float middleY;//
    private static final int DY = 40; //
    public LyricView(Context context) {
        super(context);
        init();
    }
    public LyricView(Context context, AttributeSet attr) {
        super(context, attr);
        init();
    }
    public LyricView(Context context, AttributeSet attr, int i) {
        super(context, attr, i);
        init();
    }
    private void init() {
        setFocusable(true);
        if(list==null){
            list=new ArrayList<Sentence>();
            Sentence sen=new Sentence(0," ");
            list.add(0, sen);
        }
        //
        mPaint = new Paint();
        mPaint.setAntiAlias(true);
        mPaint.setTextSize(24);
        mPaint.setColor(Color.BLACK);
        mPaint.setAlpha(80);
        mPaint.setTypeface(Typeface.SERIF);
        //
        mPathPaint = new Paint();
        mPathPaint.setAntiAlias(true);
        mPathPaint.setColor(Color.RED);
        mPathPaint.setTextSize(24);
        mPathPaint.setTypeface(Typeface.SANS_SERIF);
    }
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        canvas.drawColor(0xEFeffff);
        Paint p = mPaint;
        Paint p2 = mPathPaint;
        p.setTextAlign(Paint.Align.LEFT);
        if (index == -1)
            return;
        p2.setTextAlign(Paint.Align.LEFT);
        //
        canvas.drawText(list.get(index).getName(), mX, middleY, p2);
        float tempY = middleY;
        //
        for (int i = index - 1; i  >= 0; i--) {
            tempY = tempY - DY;
            if (tempY < 0) {
                break;
            }
            canvas.drawText(list.get(i).getName(), mX, tempY, p);
        }
        tempY = middleY;
        //
        for (int i = index + 1; i < list.size(); i++) {
            //
            tempY = tempY + DY;
            if (tempY  > mY) {
                break;
            }
            canvas.drawText(list.get(i).getName(), mX, tempY, p);
        }
    }
    protected void onSizeChanged(int w, int h, int ow, int oh) {
        super.onSizeChanged(w, h, ow, oh);
        mX = w * 0.3f;
        mY = h;
        middleY = h * 0.5f;
    }
    public long updateIndex(int index) {
        if (index == -1)
            return -1;
        this.index=index;
        return index;
    }
    public List<Sentence>  getList() {
        return list;
    }
    public void setList(List<Sentence>  list) {
        this.list = list;
    }
    public void updateUI(){
        new Thread(new updateThread()).start();
    }
    class updateThread implements Runnable {
        long time = 300;
        int i=0;
        public void run() {
            while (true) {
                long sleeptime = updateIndex(i);
                time += sleeptime;
                mHandler.post(mUpdateResults);
                if (sleeptime == -1)
                    return;
                try {
                    Thread.sleep(time);
                    i++;
                    if(i==getList().size())
                    {
                        i=0;
                        time = 300;
                    }
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    Handler mHandler = new Handler();
    Runnable mUpdateResults = new Runnable() {
        public void run() {
            invalidate(); //
        }
    };
}