package com.twolf.stressball11;
/*************************************************************************************************
 *
 * BIG THANKS TO TYLER HACKER AND DOCUMENTATION THAT LEAD TO ME FINDING
 * www.youtube.com/watch?v=V1ocJmXeQ28
 * This class  creates a simple media player where the user can choose from a list of 4 songs
 * The songs are stored in the raw folder.
 */

import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.RadioButton;

public class MusicPlayer extends AppCompatActivity {

    private RadioButton Song1, Song2, Song3, Song4;
    public int temp=R.raw.storm;
    private MediaPlayer mPlayer;
    private int length=0;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_music_player);

        Song1 = (RadioButton) findViewById(R.id.song1);
        Song2 = (RadioButton) findViewById(R.id.song2);
        Song3 = (RadioButton) findViewById(R.id.song3);
        Song4 = (RadioButton) findViewById(R.id.song4);

        mPlayer=MediaPlayer.create(this,temp);
    }
    /***********************************************************************************************
     * On Pause() simply just pauses the song and releases the media player. When back button is pressed,
     * the music stops. Call this function when you want the music player to stop and go back to Main
     ***********************************************************************************************/
    @Override
    protected void onPause(){   //When back button is pressed, the music stops

        super.onPause();    //Stops playing music when music tab is left or back button is pressed
        mPlayer.release();  //Releases the media player...essentially never was here
    }
    private void SongChange (View v)
    {
        if(Song1.isChecked())
            temp=R.raw.storm;
        else if(Song2.isChecked())
            temp=R.raw.med;
        else if(Song3.isChecked())
            temp=R.raw.chill;
        else
            temp=R.raw.be;
        mPlayer.stop();
        length=0;
    }
    /***********************************************************************************************
     * PlayMusic(View v)Plays the selected song from beginning unless song has been paused
     * if the song was paused it will pick up right where it left off
     ***********************************************************************************************/
    public void PlayMusic(View v)

    {
        if(length == 0) {
            SongChange(v);  //Calls function to determine which song is selected
            mPlayer = MediaPlayer.create(this, temp);  //creates new media player
            mPlayer.setLooping(true);   //Looping the track until user presses stop or pause
        }
        else {
            mPlayer.seekTo(length);	//moves the song to the correct location in the track
            length = 0;
        }
        mPlayer.start();    //starts media player playing the correct music
    }
    /***********************************************************************************************
     * PauseMusic(View v) Pauses the music and records where the song was paused.
     ***********************************************************************************************/
    public void PauseMusic(View v){

        mPlayer.pause();
        length = mPlayer.getCurrentPosition();	//stores track location for when user presses play again
    }

}