/**

* js/wswrapper.js

*

* simple webservice wrapper to register callbacks on onmessage

*

*/

/* global WebSocket: false */

'use strict';

function WsWrapper(wsurl, logger) {

    var url = wsurl;

    var sock = new WebSocket(url);

    var loggerObj = logger;

    var log = function(msg) {

        if(loggerObj) {

            loggerObj.log(msg);

        }

    };

    var handlers = [];

    sock.onopen = function() {

        log('Connected to ' + url);

    };

    sock.onclose = function(e) {

        log('Connection closed (wasClean = ' + e.wasClean + ', code = ' + e.code + ', reason = \'' + e.reason + '\')');

        sock = null;

    };

    sock.onmessage = function(e) {

        log('received ' + e.data);

        var data = JSON.parse(e.data);

        handlers.forEach(function(handler) {

            handler(data);

        });

    };

    this.message = function(handler) {

        if(handler) {

            handlers.push(handler);

        }

    };

}

module.exports = {

    WsWrapper: WsWrapper

};