using UnityEngine;
using System.Collections;
using System;
using UnityEngine.UI;
using System.Text.RegularExpressions;
using System.Threading;
using LAViD.Utils;
using LAViD.Structures;
using System.Diagnostics;
using LAViD.Unity.Utils;
using LAViD.VLibras.Dictionary;
using System.Collections.Generic;

public class PlayerManager : GenericPlayerManager {

#if UNITY_IOS
	//private const string BASE_URL = "http://150.165.205.9/anims/IOS/";//old
	private const string BASE_URL = "http://dicionario.vlibras.gov.br/IOS/";
#else
	//private const string BASE_URL = "http://150.165.205.9/anims/ANDROID/";//old
	private const string BASE_URL = "http://dicionario.vlibras.gov.br/ANDROID/";
#endif

	//private const string SERVER_URL = "http://vlibras.lavid.ufpb.br/glosa?texto=";//old
	private const string SERVER_URL = "http://traducao.vlibras.gov.br/translate?text=";
	private const int VERSION = 1;

	public enum ERROR_STATUS_MESSAGE
	{
		INTERNET_CONNECTION_FAILURE,
		TRANSLATOR_CONNECTION_FAILURE,
		CONNECTION_TIMEOUT_FAILURE
	}

	private string[] randomAnimationNames = new string[] {
		"[RELAXAR]",
		"[BOCEJAR]",
		"[COCHILAR]",
		"[ESPREGUI_ADA]"
	};

	protected VoiceRecognition voiceRecognizer;
	public InputField translateScreenText;
	public ScreenManager screenManager;
	private string dictWord = null;
	private string regionPath = "";
	private int regionHash = 1;
	private Trie signs = null;
    

    

	public static string get_connection_status_message(ERROR_STATUS_MESSAGE msg)
	{
		switch(msg)
		{
			case ERROR_STATUS_MESSAGE.TRANSLATOR_CONNECTION_FAILURE:
				return "Problema na conexão. Usaremos português sinalizado e datilologia.";
			case ERROR_STATUS_MESSAGE.INTERNET_CONNECTION_FAILURE:
				return "Não há acesso à internet. Usaremos português sinalizado e datilologia.";
			case ERROR_STATUS_MESSAGE.CONNECTION_TIMEOUT_FAILURE:
				return "Não há acesso à internet. Usaremos português sinalizado e datilologia.";
				//return "A conexão está lenta. Usaremos português sinalizado e datilologia.";
			default:
				return "Ocorreu um erro. Estamos trabalhando para solucioná-lo!";
		}

	}

	public override void Start()
	{
#if UNITY_EDITOR
		Caching.CleanCache();
#endif

		base.setRandomAnimations(randomAnimationNames);
		base.Start();
		
		this.gameObject.GetComponent<Dictionary>().AddOnLoadListener(setSigns);
		this.voiceRecognizer = new VoiceRecognition();

		Screen.fullScreen = false;
	}

	private void setSigns() {
		this.signs = this.gameObject.GetComponent<Dictionary>().Signs;
	}

    

	public void playDict(string word)
	{
		PlayerLogger.Log("Requesting dictionary: " + word);

		this.dictWord = word;
		base.gloss = word;
        
		base.playNow(word);
        ExportVideo.SetGloss(word);
        this.screenManager.changeExportStates(ExportLayers.ExportLayer.OnLockExport, false);

        this.screenManager.hideScreen();
		this.screenManager.setPauseMenuState(false);
	}

	public void playTranslate()
	{
		stopTranslation();
		base.stopAll();

		string text = translateScreenText.text;
        if (text != "")
        {


            translateScreenText.text = "";
            this.screenManager.changeExportStates(ExportLayers.ExportLayer.OnLockExport, false);

            StartCoroutine("translate", text);

            this.screenManager.setPauseMenuState(false);
        }
	}

	public void stopTranslation()
	{
		StopCoroutine("translate");
		this.randomAnimations.unlockFor("translate");
	}

	public void catchTranslationError()
	{
		this.randomAnimations.unlockFor("translate");
		base.repeat();
	}

	public void setRegion(string path)
	{
		this.regionPath = String.IsNullOrEmpty(path) ? "" : path;
		this.regionHash = this.regionPath == "" ? 1 : (int)this.regionPath[0] * 255 + (int)this.regionPath[1];
	}

	public void clearRegion() {
		setRegion("");
	}

	protected override WWW loadAssetBundle(string aniName)
	{
		UnityEngine.Debug.Log("PM.lAB: Checking " + aniName);

		if (this.regionHash == 1 && this.signs != null && !base.IsSpecialSign(aniName))
		{
			try {
				if (!this.signs.Contains(aniName))
					return null;
			}
			catch (KeyNotFoundException) {
				return null;
			}
		}

		string address = BASE_URL + this.regionPath + WWW.EscapeURL(aniName);
		
		PlayerLogger.Log("PM", "lAB", "Requesting bundle: " + address);
		return WWW.LoadFromCacheOrDownload(address, this.regionHash);
	}

	public override void onPlayingStateChange() {
		this.screenManager.changeStates(base.isPlaying(), base.isPaused(), base.isRepeatable());
	}

	public override void onConnectionError(string gloss, string word)
	{
		if (gloss.Equals(this.dictWord))
		{
			this.dictWord = "";
			this.screenManager.showConnectionErrorDialog(
				PlayerManager.ERROR_STATUS_MESSAGE.INTERNET_CONNECTION_FAILURE);

			base.stopAll();
		}
	}

	// Called from microphone icon at main interface
	public void callVoiceRecognizer()
	{
		PlayerLogger.Log("Requesting voice recognizer");
		
		string gloss = voiceRecognizer.callRecognition();
		this.translateScreenText.text = gloss;
		PlayerLogger.Log("Voice recognizer answer: " + gloss);

		this.screenManager.switchScreen("translate");
	}
	
	protected override WWW getCheckConnectionRequest() {
		return new WWW(BASE_URL);
	}

	public IEnumerator WaitForResponse(WWW www, Events.RequestSuccess success, Events.RequestError error)
	{
		yield return Methods.WaitForResponse(www, 20f, success, error);
	}

	protected override IEnumerator WaitForResponse(WWW www) {
		yield return WaitForResponse(www, null, null);
	}

	private IEnumerator translate(string gloss)
	{
		base.randomAnimations.lockFor("translate");
		this.screenManager.setLoadingSnippetState(true);

		WWW glossRequest = new WWW(SERVER_URL + WWW.EscapeURL(gloss));

		PlayerLogger.Log("PM", "t", "Gloss: " + gloss);
		PlayerLogger.Log("PM", "t", "Request: " + SERVER_URL + WWW.EscapeURL(gloss));
		
		yield return WaitForResponse(glossRequest);

		try {
			if ( ! glossRequest.isDone)
			{
				this.screenManager.showConnectionErrorDialog(
					PlayerManager.ERROR_STATUS_MESSAGE.CONNECTION_TIMEOUT_FAILURE);

				PlayerLogger.Log("PM", "t", "Timeout.");
			}
			else if (glossRequest.error != null)
			{
				this.screenManager.showConnectionErrorDialog(
					PlayerManager.ERROR_STATUS_MESSAGE.INTERNET_CONNECTION_FAILURE);

				PlayerLogger.Log("PM", "t", "(WWW) Error: " + glossRequest.error);
			}
			else if (glossRequest.responseHeaders.Count == 0)
			{
				PlayerLogger.Log("PM", "t", "Unsuccessful answer (0).");

				this.screenManager.showConnectionErrorDialog(
					PlayerManager.ERROR_STATUS_MESSAGE.TRANSLATOR_CONNECTION_FAILURE);
			}
			else if (!glossRequest.responseHeaders["STATUS"].Contains("200"))
			{
				PlayerLogger.Log("PM", "t", "Unsuccessful answer (" + glossRequest.responseHeaders["STATUS"] + ").");

				this.screenManager.showConnectionErrorDialog(
					PlayerManager.ERROR_STATUS_MESSAGE.TRANSLATOR_CONNECTION_FAILURE);
			}
			else if (String.IsNullOrEmpty(glossRequest.text))
			{
				PlayerLogger.Log("PM", "t", "Empty answer.");
			}
			else
			{
				PlayerLogger.Log("PM", "t", "Answer: " + glossRequest.text);

				gloss = glossRequest.text;

				base.gloss = gloss;
                ExportVideo.SetGloss(gloss);
                base.playNow(base.gloss);                

				yield break;
			}
			
			// Allows the gloss to be played when the dialog is closed
			base.gloss = gloss.ToUpper();
		}
		finally
		{
			this.screenManager.setLoadingSnippetState(false);
			base.randomAnimations.unlockFor("translate");
		}
	}

}