package com.project.mam.lab7;

import android.content.Intent;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.net.Uri;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;

public class MainActivity extends AppCompatActivity {

    Uri inputSoundUri;
    MediaPlayer mediaPlayer;
    int stopPosition = -1;
    MediaRecorder mediaRecorder;
    TextView textView4;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textView4 = findViewById(R.id.textView4);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == RESULT_OK) {
            if ((requestCode == 123)) {
                inputSoundUri = data.getData();
            }
        }
    }

    public void loadSound(View view) {
        Intent intent = new Intent()
                .setType("*/*")
                .setAction(Intent.ACTION_GET_CONTENT);
        startActivityForResult(Intent.createChooser(intent, "Select sound file"), 123);
    }

    public void playSound(View view) {
        if (mediaPlayer == null) {
            try {
                mediaPlayer = new MediaPlayer();
                mediaPlayer.setDataSource(this, inputSoundUri);
                mediaPlayer.prepare();
                mediaPlayer.start();

            } catch (IOException e) {
                e.printStackTrace();
            }
        } else {
            if (stopPosition != -1) {
                mediaPlayer.seekTo(stopPosition);
            }
            mediaPlayer.start();
        }
    }

    public void stopSound(View view) {
        mediaPlayer.stop();
        mediaPlayer.release();
        mediaPlayer = null;
    }

    public void pauseSound(View view) {
        mediaPlayer.pause();
        stopPosition = mediaPlayer.getCurrentPosition();

    }

    public void recordSound(View view) {
        if (mediaRecorder == null) {
            File rootDir = Environment.getExternalStorageDirectory();
            try {
                File file = File.createTempFile("lab7", "mp3", rootDir);

                mediaRecorder = new MediaRecorder();
                mediaRecorder.setAudioChannels(1);
                mediaRecorder.setAudioSamplingRate(8000);
                mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
                mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.RAW_AMR);
                mediaRecorder.setOutputFile(file.getAbsolutePath());
                mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
                mediaRecorder.prepare();
                mediaRecorder.start();
                textView4.setText("Recording started ...");

            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public void stopRecord(View view) {
        if (mediaRecorder != null) {
            mediaRecorder.stop();
            mediaRecorder = null;
            textView4.setText("Recording stopped ...");
        }
    }
}