/* Vendemore Javascript */

//
  
function Vendemore() {
    
  var version = '1.0'

  var BASE_URL = 'ab.vendemore.com/footprint-web';

  var protocol = (("https:" == document.location.protocol) ? "https://" : "http://");

  var COOKIE_NAME = 'vlmref';

  this.init = init;

  // Function called when page loads
  // Collects data and calls method to send ajax request
  function init() {
        
    var r = encodeURIComponent(document.referrer);
    var l = encodeURIComponent(document.location);
    var t = encodeURIComponent(jQuery.trim(document.title));
    var u = encodeURIComponent(document.url);
    var domain = encodeURIComponent(document.domain);
    var path = encodeURIComponent(location.pathname);
    var hostname = encodeURIComponent(location.hostname);
    var href = encodeURIComponent(location.href);
    
    // read existing cookie
    var c = getCookie(COOKIE_NAME);

    // Create Hash of parameters
    var params = {'cookie':c,
              'url':u,
              'path':path,
              'title':t,
              'domain':domain,
              'referrer':r};
      
    sendMessage(params);

  }

  //Function to send ajax request
  // params- prototype Hash of request parameters
  function sendMessage(params) {

    jQuery.getJSON(protocol + BASE_URL + '/alpha?'+jQuery.param(params)+'&callback=?', 
        function(response) {        
        // Setting cookie
        setCookie(COOKIE_NAME, response.cookieId, 365);        
        // Landing page
        handleLandingPage(response.landingPage);
    });

  }
  
  function handleLandingPage(landingPage){
        if(landingPage){
                if(landingPage.element && landingPage.html){
                        if($("#"+landingPage.element)){
                                $("#"+landingPage.element).html(landingPage.html);
                                return;
                        }
                }
        }
}


  //path & domain???
  //Function to set cookie
  // c_name - cookie name
  // c_value - cookie value
  // expiredays - days until cookie expiration
  function setCookie(c_name, value, expiredays) {
    var exdate = new Date();
    exdate.setDate(exdate.getDate() + expiredays);
    document.cookie = c_name
        + '='
        + escape(value)
        + ((expiredays == null) ? '' : ';expires='
            + exdate.toGMTString())
        +';path=/';
  }

  //Function to get cookie by name
  function getCookie(c_name) {
    if (document.cookie.length > 0) {
      c_start = document.cookie.indexOf(c_name + '=');
      if (c_start != -1) {
        c_start = c_start + c_name.length + 1;
        c_end = document.cookie.indexOf(';', c_start);
        if (c_end == -1)
          c_end = document.cookie.length;
        return unescape(document.cookie.substring(c_start, c_end));
      }
    }
    return '';
  }
  
}

//Run Vendemore.init() onload
$(document).ready(function() {
  new Vendemore().init();
});