// LIBRERIA PARA ESCUCHAR Y TRANSCRIBIR

function isMobile(){
    return (
        (navigator.userAgent.match(/Android/i)) ||
        (navigator.userAgent.match(/webOS/i)) ||
        (navigator.userAgent.match(/iPhone/i)) ||
        (navigator.userAgent.match(/iPod/i)) ||
        (navigator.userAgent.match(/iPad/i)) ||
        (navigator.userAgent.match(/BlackBerry/i))
    );
}

var recognition;
var output = document.getElementById("output");
var outputsenasAR = document.getElementById("outputsenasAR");
var outputsenasUY = document.getElementById("outputsenasUY");
var outputHistoria = document.getElementById("outputHistoria");

const removeAcentos = (str) => { return str.normalize("NFD").replace(/[\u0300-\u036f]/g, "");  }
function cambiarSenasAR() { $("#outputHistoria").attr('class', 'form-control SLA_AR');}
function cambiarSenasUY() { $("#outputHistoria").attr('class', 'form-control SLA_UY');}
function cambiarTexto() {$("#outputHistoria").attr('class', 'form-control TEXTO_TRA');}

function stopSpeechRecognition() {
    $.notify("DETENIDO.", "warn");
    $('#boff').prop('disabled', true);
    $('#bon').prop('disabled', false);
    $('#mic').attr('src','IMG/mic_off.png');
    recognition.stop();
}

function insertarSimbolo(simbolo)
{
    if(simbolo== "NEW_LINE"){simbolo = String.fromCharCode(13, 10);}
    if(simbolo== "NEW_LINE2"){simbolo = String.fromCharCode(13, 10)+String.fromCharCode(13, 10);}
    output.innerHTML +=  simbolo;
    outputsenasAR.innerHTML +=  simbolo;
    outputsenasUY.innerHTML +=  simbolo;
    outputHistoria.innerHTML += simbolo
}


function runSpeechRecognition(parametro = true)
{

    $('#boff').prop('disabled', false);
    $('#bon').prop('disabled', true);
    $('#mic').attr('src','IMG/mic_on.png');    
	// get output div reference
    var output = document.getElementById("output");
  
 
    // new speech recognition object
    var SpeechRecognition = SpeechRecognition || webkitSpeechRecognition;
	var SpeechGrammarList = SpeechGrammarList || webkitSpeechGrammarList
	var SpeechRecognitionEvent = SpeechRecognitionEvent || webkitSpeechRecognitionEvent

	recognition = new SpeechRecognition();
    
		// This runs when the speech recognition service starts
		
		if ( isMobile() )
		{
			recognition.continuous 		= false;
		}else{
			recognition.continuous 		= true;
		}
		
		
    	recognition.lang 			= 'es-ES';
    	recognition.interimResults 	= true;
    	recognition.maxAlternatives = 100;
	
    
    recognition.onstart = function(){
		if(parametro == true) $.notify("Escuchando..", "info");
    };
    

    recognition.onspeechend = function(){
        if (parametro == true) $.notify("Sin sonido..", "info");
        setTimeout('runSpeechRecognition(false)',1000);

    }
    
    recognition.onerror = function(event) {
        $.notify(event.error, "warn");
    }
	

    recognition.onresult = function(event){
    	
        var interim_transcript = '';
        var final_transcript = '';
        for (var i = event.resultIndex; i < event.results.length; ++i) {
            // Verify if the recognized text is the last with the isFinal property
            if (event.results[i].isFinal) {
                final_transcript += event.results[i][0].transcript;
            } else {
                interim_transcript += event.results[i][0].transcript;
            }
        }
    	var transcript = interim_transcript;
        var newline = String.fromCharCode(13, 10);
        transcript = transcript.replaceAll("punto y coma", ";").replaceAll("dos puntos", ":").replaceAll('punto','.').replaceAll("coma", ",").replaceAll("signo de exclamación", "!").replaceAll("signo de interrogación", "?").replaceAll("guión", "-").replaceAll("nueva línea", newline).replaceAll("abrir paréntesis", "(").replaceAll("cerrar paréntesis", ")").replaceAll("cara sonriente", ":-)").replaceAll("cara triste", ":-(").replaceAll("nuevo apartado", newline+newline);
    	output.innerHTML = removeAcentos(transcript);    	
    	outputsenasAR.innerHTML = removeAcentos(transcript);   	
    	outputsenasUY.innerHTML = removeAcentos(transcript);
        final_transcript = final_transcript.replaceAll("punto y coma", ";").replaceAll("dos puntos", ":").replaceAll('punto','.').replaceAll("coma", ",").replaceAll("signo de exclamación", "!").replaceAll("signo de interrogación", "?").replaceAll("guión", "-").replaceAll("nueva línea", newline).replaceAll("abrir paréntesis", "(").replaceAll("cerrar paréntesis", ")").replaceAll("cara sonriente", ":-)").replaceAll("cara triste", ":-(").replaceAll("nuevo apartado", newline+newline);
        outputHistoria.innerHTML += removeAcentos(final_transcript);
     };

	// start recognition
    recognition.start();
	}



// PARA DIBUJAR LA INTESIDAD DEL MICROFONO

function colorPids(vol) {
    let all_pids = $('.pid');
    let amout_of_pids = Math.round(vol/4);
    let elem_range = all_pids.slice(0, amout_of_pids);
    for (var i = 0; i < all_pids.length; i++) {
      all_pids[i].style.backgroundColor="#e6e7e8";
    }
    for (var i = 0; i < elem_range.length; i++) {
      elem_range[i].style.backgroundColor="#69ce2b";
    }
    var estado = $('#bon').prop('disabled');
    if(amout_of_pids>8 && estado == false) {
        var testData = !!document.getElementsByClassName("data-notify-text");
        $("#barra").notify("Notamos que estas hablando, pero te falta realizar click en Comenzar.", "info");
         }
}

navigator.mediaDevices.getUserMedia({ audio: true})
.then(function(stream) {
  $('#mic').attr('src','IMG/mic_on.png');
  audioContext = new AudioContext();
  analyser = audioContext.createAnalyser();
  microphone = audioContext.createMediaStreamSource(stream);
  javascriptNode = audioContext.createScriptProcessor(2048, 1, 1);
  analyser.smoothingTimeConstant = 0.8;
  analyser.fftSize = 1024;
  microphone.connect(analyser);
  analyser.connect(javascriptNode);
  javascriptNode.connect(audioContext.destination);
  javascriptNode.onaudioprocess = function() {
      var array = new Uint8Array(analyser.frequencyBinCount);
      analyser.getByteFrequencyData(array);
      var values = 0;
      var length = array.length;
      for (var i = 0; i < length; i++) {
        values += (array[i]);
      }
      var average = values / length;
      colorPids(average);
  }
  })
  .catch(function(err) {
  });