package com.android.speechtest;

import java.util.ArrayList;
import java.util.Locale;

import android.app.Activity;
import android.app.Dialog;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.speech.tts.TextToSpeech;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity implements
		TextToSpeech.OnInitListener {
	protected static final int RESULT_SPEECH = 1;
	private TextToSpeech tts;
	Toast toast;
	TextView textView;
	ArrayList<String> text;
	Button btnPlay, btnRe, btnExit;
	String localeSys;

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

		localeSys = Locale.getDefault().toString();
		Toast.makeText(getApplicationContext(),
				"System locale detected: " + localeSys, Toast.LENGTH_LONG)
				.show();
		Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);

		intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, localeSys.trim());

		try {
			startActivityForResult(intent, RESULT_SPEECH);

		} catch (ActivityNotFoundException a) {
			Toast t = Toast.makeText(getApplicationContext(),
					"Opps! Your device doesn't support Speech to Text",
					Toast.LENGTH_LONG);
			t.show();
		}

	}

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

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		super.onActivityResult(requestCode, resultCode, data);

		switch (requestCode) {
		case RESULT_SPEECH: {
			if (resultCode == RESULT_OK && null != data) {

				text = data
						.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);

				Toast.makeText(getApplicationContext(), text.get(0),
						Toast.LENGTH_LONG).show();

				// Create custom dialog object
				final Dialog dialog = new Dialog(MainActivity.this);
				// Include dialog.xml file
				dialog.setContentView(R.layout.custom_dialog);
				// Set dialog title
				dialog.setTitle(text.get(0));
				TextView textV = (TextView) dialog.findViewById(R.id.txtDisp);
				textV.setText(text.get(0));
				// set values for custom dialog components - text, image and
				// button
				dialog.show();

				btnExit = (Button) dialog.findViewById(R.id.btnExit);

				btnExit.setOnClickListener(new OnClickListener() {
					@Override
					public void onClick(View v) {
						// Close dialog
						dialog.dismiss();
						System.exit(0);
					}
				});

				btnRe = (Button) dialog.findViewById(R.id.btnRestart);

				btnRe.setOnClickListener(new OnClickListener() {
					@Override
					public void onClick(View v) {
						Intent intent = new Intent();
						intent.setClass(getApplicationContext(),
								MainActivity.class);
						startActivity(intent);
					}
				});

				btnPlay = (Button) dialog.findViewById(R.id.btnPlayText);

				btnPlay.setOnClickListener(new OnClickListener() {
					@Override
					public void onClick(View v) {
						speakOut(text.get(0));
					}

				});

			}
			break;
		}

		}
	}

	@Override
	public void onDestroy() {
		// Don't forget to shutdown tts!
		if (tts != null) {
			tts.stop();
			tts.shutdown();
		}
		super.onDestroy();
	}

	@Override
	public void onInit(int status) {

		if (status == TextToSpeech.SUCCESS) {

			int result = tts.setLanguage(Locale.US);

			if (result == TextToSpeech.LANG_MISSING_DATA
					|| result == TextToSpeech.LANG_NOT_SUPPORTED) {
				Log.e("TTS", "This Language is not supported");
			} else {

				speakOut(text.get(0));
			}

		} else {
			Log.e("TTS", "Initilization Failed!");
		}

	}

	private void speakOut(String ttsText) {

		String text = ttsText;

		tts.speak(text, TextToSpeech.QUEUE_FLUSH, null);
	}
}