package com.dotaz1.speechrecognizertest;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.speech.RecognitionListener;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.util.Log;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;

import java.util.ArrayList;

public class MainActivity extends Activity implements RecognitionListener {

    private TextView returnedText;
    private ProgressBar progressBar;
    private SpeechRecognizer speech = null;
    private Intent recognizerIntent;
    private String LOG_TAG = "VoiceRecogActivity";

    private int mProgressStatus;
    private Handler mHandler = new Handler();
    private String text;


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

        returnedText = (TextView) findViewById(R.id.textView1);
        progressBar = (ProgressBar) findViewById(R.id.progressBar);

        progressBar.setVisibility(View.INVISIBLE);
        speech = SpeechRecognizer.createSpeechRecognizer(this);
        speech.setRecognitionListener(this);
        recognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
        recognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE, "en");
        recognizerIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, this.getPackageName());
        recognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH);
        recognizerIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 3);
    }

    public void listeningLoop(View button){
        progressBar.setMax(5);
//        while(true) {
            startListening();
            slowDownLoop();
//            stopListening();
//        }
    }

    private void startListening(){
        //tady bude asi nejake nastaveni progresBaru, to se jeste uvidi
        progressBar.setVisibility(View.VISIBLE);
        speech.startListening(recognizerIntent);
    }

    private void stopListening(){
        progressBar.setVisibility(View.INVISIBLE);
        speech.stopListening();
    }

    public void slowDownLoop() {
        // Start lengthy operation in a background thread
        new Thread(new Runnable() {
            public void run() {
//                startListening();
                mProgressStatus = 0;
                while (mProgressStatus < 5) {
                    // Update the progress bar
                    mHandler.post(new Runnable() {
                        public void run() {
                            text=Integer.toString(mProgressStatus);
                            progressBar.setProgress(mProgressStatus);
                            returnedText.setText(text);
                            Log.i(LOG_TAG, text);
                        }
                    });
                    try {
                        Thread.sleep(1000);
                    } catch (Exception e) {
                        Log.i(LOG_TAG, "exception");
                    }
                    mProgressStatus++;
                }
            }
        }).start();

    }

    @Override
    public void onResume() {
        super.onResume();
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (speech != null) {
            speech.destroy();
            Log.i(LOG_TAG, "destroy");
        }

    }

    @Override
    public void onBeginningOfSpeech() {
        Log.i(LOG_TAG, "onBeginningOfSpeech");
        progressBar.setIndeterminate(false);
        progressBar.setMax(10);
    }

    @Override
    public void onBufferReceived(byte[] buffer) {
        Log.i(LOG_TAG, "onBufferReceived: " + buffer);
    }

    @Override
    public void onEndOfSpeech() {
        Log.i(LOG_TAG, "onEndOfSpeech");
    }

    @Override
    public void onError(int errorCode) {
        String errorMessage = getErrorText(errorCode);
        Log.d(LOG_TAG, "FAILED " + errorMessage);
        returnedText.setText(errorMessage);
    }

    @Override
    public void onEvent(int arg0, Bundle arg1) {
        Log.i(LOG_TAG, "onEvent");
    }

    @Override
    public void onPartialResults(Bundle arg0) {
        Log.i(LOG_TAG, "onPartialResults");
    }

    @Override
    public void onReadyForSpeech(Bundle arg0) {
        Log.i(LOG_TAG, "onReadyForSpeech");
    }

    @Override
    public void onResults(Bundle results) {
        Log.i(LOG_TAG, "onResults");
        ArrayList<String> matches = results
                .getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
        String text = "";
        for (String result : matches)
            text += result + "\n";

        returnedText.setText(text);
    }

    @Override
    public void onRmsChanged(float rmsdB) {
/*        Log.i(LOG_TAG, "onRmsChanged: " + rmsdB);
        progressBar.setProgress((int) rmsdB);
*/    }

    public static String getErrorText(int errorCode) {
        String message;
        switch (errorCode) {
            case SpeechRecognizer.ERROR_AUDIO:
                message = "Audio recording error";
                break;
            case SpeechRecognizer.ERROR_CLIENT:
                message = "Client side error";
                break;
            case SpeechRecognizer.ERROR_INSUFFICIENT_PERMISSIONS:
                message = "Insufficient permissions";
                break;
            case SpeechRecognizer.ERROR_NETWORK:
                message = "Network error";
                break;
            case SpeechRecognizer.ERROR_NETWORK_TIMEOUT:
                message = "Network timeout";
                break;
            case SpeechRecognizer.ERROR_NO_MATCH:
                message = "No match";
                break;
            case SpeechRecognizer.ERROR_RECOGNIZER_BUSY:
                message = "RecognitionService busy";
                break;
            case SpeechRecognizer.ERROR_SERVER:
                message = "error from server";
                break;
            case SpeechRecognizer.ERROR_SPEECH_TIMEOUT:
                message = "No speech input";
                break;
            default:
                message = "Didn't understand, please try again.";
                break;
        }
        return message;
    }

}