/*
 * Copyright (c) 2015 Ziver
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package se.hal.stt;

import edu.cmu.sphinx.api.Configuration;
import edu.cmu.sphinx.api.LiveSpeechRecognizer;
import edu.cmu.sphinx.api.SpeechResult;
import se.hal.intf.HalSpeachToText;

import java.io.IOException;


/**
 * Created by Ziver on 2015-05-08.
 */
public class Sphinx4STTClient implements HalSpeachToText {
    private LiveSpeechRecognizer recognizer;

    @Override
    public void initSTT() {
        Configuration configuration = new Configuration();

        // Set path to acoustic model.
        configuration.setAcousticModelPath("resource:/sphinx-models/en-us");
        // Set path to dictionary.
        configuration.setDictionaryPath("resource:/sphinx-models/cmudict-en-us.dict");
        // Set language model.
        configuration.setLanguageModelPath("resource:/sphinx-models/en-us.lm.dmp");

        try {
            recognizer = new LiveSpeechRecognizer(configuration);
        } catch (IOException e) {
            e.printStackTrace();
            System.exit(1);
        }
    }

    @Override
    public String listen() {
        // Start recognition process pruning previously cached data.
        recognizer.startRecognition(true);

        SpeechResult result = recognizer.getResult();
        // Pause recognition process. It can be resumed then with startRecognition(false).
        recognizer.stopRecognition();
        return result.getHypothesis();
    }
}
