using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using System;
using System.Collections.Generic;

public class OutputTTS : MonoBehaviour{

	private TextToSpeechPlugin textToSpeechPlugin;

	public static OutputTTS instance = null;

    private string lang = "US";

	private Queue<string> wordsToSay = new Queue<string>();

	[SerializeField] Text ttsText;

    // Use this for initialization
    void Start (){
		instance = this;
        textToSpeechPlugin = TextToSpeechPlugin.GetInstance();
        textToSpeechPlugin.SetDebug(0);
        textToSpeechPlugin.Initialize();
		textToSpeechPlugin.SetPitch (10.0f);
    }


    public void setLang(string name)
    {
        name = name.ToUpper();

        Dictionary<string, string> ltoc = new Dictionary<string, string>();
        ltoc.Add("EN", "US"); ltoc.Add("ES", "SP");
        ltoc.Add("CH", "CN"); ltoc.Add("AR", "SA");

        lang = ltoc.ContainsKey(name)? ltoc[name]: lang;
		ttsText.text = "@@@@1";
		Debug.Log("TTS: " + lang);
    }

	public void Update()
	{
		if (IsSpeaking() || wordsToSay.Count == 0)
			return;

		string text = wordsToSay.Peek();

		textToSpeechPlugin.SetLocaleByCountry(lang);

		if (textToSpeechPlugin.isInitialized())
		{
			textToSpeechPlugin.SpeakOut(text, "test - utteranceId");
			wordsToSay.Dequeue ();
		}
		ttsText.text = "@@@@2";

	}

    public void TTS(string text)
    {
		wordsToSay.Enqueue (text);

    }

    private void OnApplicationPause(bool val){
		//for text to speech events
		if(textToSpeechPlugin!=null){
			if(textToSpeechPlugin.isInitialized()){
				if(val){
					textToSpeechPlugin.UnRegisterBroadcastEvent();
					ttsText.text = "@@@@4";

				}else{
					textToSpeechPlugin.RegisterBroadcastEvent();
					ttsText.text = "@@@@5";

				}
			}
		}
	}

	public bool IsSpeaking(){
		return textToSpeechPlugin.IsSpeaking();
		ttsText.text = "@@@@6";

	}

	private void OnDestroy(){
		if (instance == this)
			instance = null;
		//call this of your not going to used TextToSpeech Service anymore
		textToSpeechPlugin.StopAllCoroutines ();
		textToSpeechPlugin.ShutDownTextToSpeechService();
		ttsText.text = "@@@@7";

	}
}