const socketHost = 'ws://pbx.dyn.verdnatura.es:8088/asterisk/ws';
const uriHost = 'pbx.dyn.verdnatura.es';

var options = {
    mediaConstraints: {
      audio: true,
      video: false
    },
    session_timers: false,
    volume: 0.5,
    microphone: true
  };

let socket = new JsSIP.WebSocketInterface(socketHost);
let configuration = {
    sockets  : [ socket ],
    uri      : 'sip:8000@pbx.dyn.verdnatura.es',
    password : '123456',
    authorizationUser: '8000',
    hackIpInContact: true,
    rtcpMuxPolicy: 'negotiate',
    hackWssInTransport: true
  };

let ua = new JsSIP.UA(configuration);

/**
 * Show event message
 * @param {Object} event 
 */
function eventStatus(event) {
    if (event.cause === JsSIP.C.causes.CONNECTION_ERROR)
        return Util.notify('Ha ocurrido un error de conexión');

    if (event.cause === JsSIP.C.causes.INTERNAL_ERROR)
        return Util.notify('Ha ocurrido un error inesperado');

    if (event.cause === JsSIP.C.causes.AUTHENTICATION_ERROR)
        return Util.notify('No se ha podido autenticar la sesión');

    if (event.cause === JsSIP.C.causes.UNAVAILABLE)
        return Util.notify('El destinatario no está disponible');

    if (event.cause === JsSIP.C.causes.BUSY)
        return Util.notify('El destinatario está ocupado');

    if (event.cause === JsSIP.C.causes.REJECTED)
        return Util.notify('La llamada ha sido rechazada')

    if (event.cause === JsSIP.C.causes.NOT_FOUND)
        return Util.notify('No se ha podido encontrar el destinatario');

    if (event.cause === JsSIP.C.causes.REQUEST_TIMEOUT)
        return Util.notify('El destinatario no ha respondido la llamada');

    if (event.cause === JsSIP.USER_DENIED_MEDIA_ACCESS)
        return Util.notify('Es necesario permitir el acceso al micrófono');
}

/**
 * UA register
 */
ua.on('registered', function(event) {
    $('.profile .status').removeClass('offline').addClass('online');
});

/**
 * Client disconnection
 */
ua.on('disconnected', function(event) {
    $('.profile .status').removeClass('online').addClass('offline');
    eventStatus(event);
});

ua.on('registrationFailed', function(event) {
    $('.profile .status').removeClass('offline').addClass('error');
    eventStatus(event);
});

/**
 * Call session
 */
ua.on('newRTCSession', function(event) {
    let session = event.session;
    ua.sessionInstance = session;

    session.on('confirmed', function() {
        console.log('confirmed');
    });

    session.on('reinvite', function() {
        console.log('reinvite');
    });

    session.on('update', function() {
        console.log('update');
    });

/**
 * Call in progress
 */
    session.on('progress', function(event) {
        if (session.direction === 'incoming') {
            Util.load('#content', '/call', function() {
                audio.addTrack('incoming');
                audio.play(true);
            });
        } else {
            Util.load('#content', '/call', function() {
                audio.addTrack('outgoing');
                audio.play(true);
            });
        }
    });

/**
 * Call accepted
 */
    session.on('accepted', function(event) {
        console.log('accepted');
        document.getElementById('callStatus').innerHTML = 'Llamada conectada';
        if (session.connection.getRemoteStreams().length > 0) {
            let stream = session.connection.getRemoteStreams()[0];
            
            audio.addStream(stream);
            audio.play();
        }
        Util.startTimer();
    });

    session.on('hold', function(event) {
        $('callStatus').innerHTML = 'Llamada en espera';
    });

    session.on('unhold', function(event) {
        $('callStatus').innerHTML = 'Llamada conectada';
    });

    session.on('refer', function() {
        $('callStatus').innerHTML = 'Llamada transferida';
    });

/**
 * Call ended
 */
    session.on('ended', function(event) {
        audio.addTrack('hangup');
        audio.play();

        Util.load('#content', '/', function() {

        });

        Util.stopTimer();

        ua.sessionInstance = null;
        eventStatus(event);
    });

/**
 * Call failed
 */
    session.on('failed', function(event) {
        audio.addTrack('hangup');
        audio.play();

        ua.sessionInstance = null;
        eventStatus(event);
    });
});

ua.start();