package it.fontanagianpaolo.www.prova;

import android.app.Activity;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.SeekBar;

import java.io.IOException;

public class Classes extends Activity implements MediaPlayer.OnPreparedListener {

    static Button playButton;
    static Button pauseButton;
    static Button stopButton;
    static SeekBar seekBar;
    private static MediaPlayer player;
    static Handler handler;
    static Uri audio;
    static boolean canMakeCall = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        player = MediaPlayer.create(this, R.raw.underwater);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_classes);

        playButton = (Button) findViewById(R.id.playButton);
        pauseButton = (Button) findViewById(R.id.pauseButton);
        stopButton = (Button) findViewById(R.id.stopButton);
        seekBar = (SeekBar) findViewById(R.id.seekBar);

        if (canMakeCall = true) {
            player.setOnPreparedListener(this);

            handler = new Handler();

            seekBar.setMax(player.getDuration());

            playButton.setOnClickListener(new View.OnClickListener() {
                public void onClick(View view) {
                    if (!player.isPlaying()) {
                        player.start();
                        updateSeekBar();
                    }
                }
            });

            pauseButton.setOnClickListener(new View.OnClickListener() {
                public void onClick(View view) {
                    if (player.isPlaying()) {
                        player.pause();
                        updateSeekBar();
                    }

                }
            });

            stopButton.setOnClickListener(new View.OnClickListener() {

                public void onClick(View view) {

                    if (player.isPlaying()||!(player.isPlaying()) ) {
                        player.stop();


                        try {
                            player.prepare();
                            player.seekTo(0);  // mi fa ricominciare la traccia audio
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }
            });

            seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
                @Override
                public void onProgressChanged(SeekBar seekBar, int i, boolean b) {
                    if (b) {
                        seekChanged(seekBar, i, b);
                    }
                }

                @Override
                public void onStartTrackingTouch(SeekBar seekBar) {

                }

                @Override
                public void onStopTrackingTouch(SeekBar seekBar) {


                }
            });

            player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                @Override
                public void onCompletion(MediaPlayer mediaPlayer) {
                    mediaPlayer.stop();
                    player.stop();
                    seekBar.setProgress(0);
                    seekBar.invalidate();
                }
            });
        }
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public void onPrepared(MediaPlayer mediaPlayer) {
        playButton.setEnabled(true);
        canMakeCall = true;
    }

    public void seekChanged(SeekBar seekBar, int progress, boolean fromUser) {
        player.seekTo(progress);
    }

    public void updateSeekBar() {
        seekBar.setProgress(player.getCurrentPosition());

        if (player.isPlaying()) {
            Runnable notification = new Runnable() {
                public void run() {
                    updateSeekBar();
                }
            };
            handler.postDelayed(notification, 1500);
        }
    }

}