// $Id: doubleclick_ads.js 40189 2011-07-01 16:10:37Z kgerich $
// 2011-06-27 tkroon added dogfish
// Doubleclick ad support

// make sure global namespace exists
OPG = window.OPG || {};

// Doubleclick namespace
OPG.Doubleclick = OPG.Doubleclick || {};

// is this an article page? (use standard var for cross-compat)
// doubleclick_article_page can be set to true before or after this file
if (typeof(window.doubleclick_article_page)=='undefined') window.doubleclick_article_page = false;

OPG.Doubleclick = function() {

  // PUBLIC
  return {
    extraAdKeys: Array(),   // filled w/ demandbase, etc as needed
    ord: Math.random()*10000000000000000,     // random # for ads, client-side to avoid caching
    contenttypeprop: {"www.itworld.com" : "prop4","www.csoonline.com" : "prop5","blogs.csoonline.com" : "prop5","www.cio.com" : "prop5","blogs.cio.com" : "prop5","www.infoworld.com" : "prop2","www.networkworld.com" : "prop2", "www.computerworld.com" : "prop5", "vox.nww.com" : "prop2", "teamsite.computerworld.com" : "prop5", "blogs.computerworld.com" : "prop5"}, // omniture props
	nsdr_auth: 'no',

    // get user agent 
    userAgentValue: function() {
      var browser = "";
      // TODO: make more generic when requirements are known
      if (/(iPad|iPhone)/.test(navigator.userAgent)) { // test for iPad or iPhone
        browser = RegExp.$1;
      }
    	return browser;
    },
    
    // get any referrer
    referrerValue: function() {
       var domain = "";
       var referrer = document.referrer;

       if (referrer == "") return "";
       if (referrer.indexOf("http://www.google.com/cse") > -1) return ""; // custom search - exception

       rPieces = referrer.split("/");
       dPieces = rPieces[2].split(".");

       if(dPieces.length >= 2) {
         domain = dPieces[dPieces.length-2];
         return domain;
       }
       return "";
    },
    getQueryValue: function(source, name) {
		if (name != "") {
			var rPieces = source.split("?");
			if (typeof(rPieces[1]) == "undefined") return "";
			var qVars = rPieces[1].split("&");
			for (var i=0;i<qVars.length;i++) {
				var pair = qVars[i].split("=");
				if (pair[0] == name) return pair[1];
			}
       	}
		return "";	
	},
    searchTerms: function() {
       var domain = "";
       var referrer = document.referrer;
	   var searchEngines = {"google" : "q", "yahoo" : "p", "bing" : "q", "nww" : "hpg1"};
	
       if (referrer == "") return "";
       if (OPG.Doubleclick.referingDomain == "") return "";

	   return OPG.Doubleclick.getQueryValue(referrer,searchEngines[OPG.Doubleclick.referingDomain])
    },   
    // add one-time conditional keys
    extraKeysAdded: false,
	referingDomain: "",
	
    addExtraKeys: function() {
      try {
        if (OPG.Doubleclick.extraKeysAdded==true) return;   // only once
        OPG.Doubleclick.extraKeysAdded = true;

        // get referrer separately (otherwise adds every time)
        // but only on article pages
        //if (window.doubleclick_article_page == true) {
		  OPG.Doubleclick.referingDomain = OPG.Doubleclick.referrerValue();
          OPG.Doubleclick.extraAdKeys[OPG.Doubleclick.extraAdKeys.length] = "referrer=" + OPG.Doubleclick.referingDomain;
        //}
        // get user agent
        var browser_value = OPG.Doubleclick.userAgentValue();
        if (browser_value != "") {
          OPG.Doubleclick.extraAdKeys[OPG.Doubleclick.extraAdKeys.length] = "browser=" + browser_value;
        }
      } catch(e) {
        //OPG.Doubleclick.extraAdKeys[OPG.Doubleclick.extraAdKeys.length] = "ERROR=addExtraKeys";   // so it's noticed
        console.log(e);
      }
    },
    
    // add one-time conditional keys
    dogfishKeysAdded: false,
	sKeysAdded: false,

    addDogfiskKeys: function(url) {
	  try{
		if (OPG.Doubleclick.sKeysAdded==false) {
			if(typeof(dogfish_type) != "undefined" && dogfish_type != "(none)") {
				OPG.Doubleclick.extraAdKeys[OPG.Doubleclick.extraAdKeys.length] = "contenttype=" + dogfish_type;
				OPG.Doubleclick.sKeysAdded = true;
			}
			else if(typeof(s) != "undefined") {
				OPG.Doubleclick.extraAdKeys[OPG.Doubleclick.extraAdKeys.length] = "contenttype=" + s[OPG.Doubleclick.contenttypeprop[document.location.host]];
				OPG.Doubleclick.sKeysAdded = true;
			}
		}
		if (OPG.Doubleclick.dogfishKeysAdded==true) return;
		if(document.cookie.indexOf("nsdr") > -1) OPG.Doubleclick.nsdr_auth = 'yes';
		OPG.Doubleclick.extraAdKeys[OPG.Doubleclick.extraAdKeys.length] = "insiderauth=" + OPG.Doubleclick.nsdr_auth;
		squery = OPG.Doubleclick.searchTerms();
		if (squery != "") OPG.Doubleclick.extraAdKeys[OPG.Doubleclick.extraAdKeys.length] = "squery=" + squery;
		var nls = OPG.Doubleclick.getQueryValue(window.location.href,"source")
		if (nls != "") OPG.Doubleclick.extraAdKeys[OPG.Doubleclick.extraAdKeys.length] = "nlsource=" + nls;
		OPG.Doubleclick.dogfishKeysAdded = true;
		
      } catch(e) {
        //OPG.Doubleclick.extraAdKeys[OPG.Doubleclick.extraAdKeys.length] = "ERROR=addDogFishKeys";   // so it's noticed
        console.log(e);
      }
    },
   
    processAdUrl: function(url) {
      var hasurl = (url.length > 0)?true:false;
      // add extra keys (runs once)
      OPG.Doubleclick.addExtraKeys();

	  // add dogfish keys
	  OPG.Doubleclick.addDogfiskKeys(url);

      // add ad keys
      var adKeys = OPG.Doubleclick.extraAdKeys.join(';');
      if (adKeys != '') {
        if (url.charAt(url.length-1) != ";") url = url + ";"; // separator
        url = url + adKeys;
      }

      // add 'ord' if not already
      if (url.indexOf("ord=") == -1 && hasurl) {
        if (url.charAt(url.length-1) != ";") url = url + ";"; // separator
        url = url + "ord="+ OPG.Doubleclick.ord +"?";
      }
      return url;
    },  
    
    processReferer: function(url) {    // legacy (remove?)
      return OPG.Doubleclick.processAdUrl(url); 
    }
  };
}();

// for legacy (set by demandbase callback)
window._rval = '';
window.rval = '';   // always set both together

// random # for ads, client-side to avoid caching
window.ord = OPG.Doubleclick.ord;

// for legacy/transition
window.processAdUrl = function(url) {
  return OPG.Doubleclick.processAdUrl(url);
};