AddNamespace("NPR.metrics");

NPR.metrics.constants = {};
NPR.metrics.constants.SEARCH_CONDUCTED = 'event1';
NPR.metrics.constants.PAGEVIEW = 'event2';
NPR.metrics.constants.REGISTRATION = 'event3';
NPR.metrics.constants.PROMOTION = 'event4';
NPR.metrics.constants.LOGIN = 'event5';
NPR.metrics.constants.EMAIL_STORY = 'event9';
NPR.metrics.constants.NEWSLETTER_SUBSCRIBE = 'event10';
NPR.metrics.constants.NEWSLETTER_UNSUBSCRIBE = 'event11';
NPR.metrics.constants.COMMENT_ADDED = 'event13';
NPR.metrics.constants.CONTACT_US = 'event14';
NPR.metrics.constants.STATION_DRAWER_OPEN = 'event15';
NPR.metrics.constants.LISTEN_DRAWER_OPEN = 'event16';
NPR.metrics.constants.CLICK_RSS_LINK = 'event8';
NPR.metrics.constants.CLICK_PODCAST_LINK = 'event18';
NPR.metrics.constants.AUTO_REFRESH = 'event19';
NPR.metrics.constants.IMAGE_ENLARGEMENT = 'event22';
NPR.metrics.constants.ADD_TO_PLAYLIST = 'event23';
NPR.metrics.constants.SPONSOR_DRAWER_OPEN = 'event24';
NPR.metrics.constants.STATION_SEARCH = 'event27';
NPR.metrics.constants.STATION_SEARCH_DONATE = 'event28';
NPR.metrics.constants.STATION_LINK_CLICKED = 'event29';
NPR.metrics.constants.STATION_HEADLINE_CLICKED = 'event45';
NPR.metrics.constants.EXCERPT_VIEWED = 'event47';
NPR.metrics.constants.PURCHASE_INFO_VIEWED = 'event48';

NPR.metrics.constants.ERROR_PAGE_TYPE = 'errorPage';

NPR.metrics.constants.EVENT_TYPE_DEFAULT = 'defaultEvent';
NPR.metrics.constants.EVENT_TYPE_SOCIAL = 'socialEvent';
NPR.metrics.constants.NAVIGATION = 'navigation';

if (typeof get_cookie === 'undefined') {
    get_cookie = function( name ) {    
        var start = document.cookie.indexOf( name + "=" );
        var len = start + name.length + 1;
        if ( ( !start ) &&
             ( name !== document.cookie.substring( 0, name.length ) ) ) {
            return null;
        }
        if ( start === -1 ) return null;
        var end = document.cookie.indexOf( ";", len );
        if ( end === -1 ) end = document.cookie.length;
        return unescape( document.cookie.substring( len, end ) );
    }
}

NPR.metrics.variables = {};

if(NPR.metrics.vscount != null) {
    NPR.metrics.vscount = NPR.metrics.vscount + 1;
    NPR.metrics.variables["logCount"] = NPR.metrics.vscount;
}
else { 
    NPR.metrics.vscount = 1;
}

NPR.metrics.host = "http://www.npr.org";
if (document.location.href.indexOf("shop.npr.org") > -1) {
    NPR.metrics.host = "//v2.npr.org";
}
else if (document.location.href.indexOf("https:") > -1) {
    NPR.metrics.host = "https://v.npr.org";
}

NPR.metrics.variables["sw"] = screen.width;
NPR.metrics.variables["sh"] = screen.height;
NPR.metrics.variables["cd"] = screen.colorDepth;
NPR.metrics.variables["dr"] = document.referrer;
NPR.metrics.variables["cb"] = new Date().getTime();

NPR.metrics.clearVars = function() {
    if(typeof s !== 'undefined') { // not sure why it would be...
        for(var key in s) { if(key.indexOf('eVar')===0 || key.indexOf('prop')===0) {delete s[key];}}
    }
}

NPR.metrics.fixEncoding = function(oldString) {
    var newString = oldString.replace(/\+/g,' ');
    return decodeURIComponent(newString);
};

NPR.metrics.pageImpression = function() {
    
    if( typeof NPR.ga === 'object' ){
      NPR.ga.pageImpression();
    }
    
    if( typeof NPR.chartbeat === 'object' ){
      NPR.chartbeat.go();
    }
    
    // Set Omniture Variables

    s.pageName="";
    
    s.server="";
    s.channel="";

    s.pageType="";
    if (NPR.metrics.vstag.omniturePageType) {
        s.pageType=NPR.metrics.vstag.omniturePageType;
    }

    var pageTitle = document.title;
    pageTitle = pageTitle.replace(/NPR\:/,'');
    pageTitle = pageTitle.replace(/NPR\s\:/,'');
    pageTitle = pageTitle.replace(/NPR\-/,'');
    pageTitle = pageTitle.replace(/NPR\s\-/,'');
    
    if(NPR.metrics.vstag.title) {
        pageTitle = NPR.metrics.fixEncoding(NPR.metrics.vstag["title"]);
    }
        
    s.pageName=pageTitle;
    s.prop3=pageTitle;
    
    if (NPR.metrics.vstag.storyId) {
        s.prop4=NPR.metrics.vstag["storyId"];
        
      
        //initialize click map plug-in
        if(s.prop4 === '1002')
        { 
        	s.setupDynamicObjectIDs();        
        }
    }
    else {
        s.prop4=0;
    }

    if(NPR.metrics.vstag.omnitureNamePrefix) {
        s.pageName=NPR.metrics.fixEncoding(NPR.metrics.vstag.omnitureNamePrefix) + s.pageName;
        s.prop3=s.pageName;
    }

    if(NPR.metrics.vstag.omnitureNameSuffix) {
        s.pageName=s.pageName + NPR.metrics.fixEncoding(NPR.metrics.vstag.omnitureNameSuffix);
        s.prop3=s.pageName;
    }
    
    if (NPR.metrics.vstag.text) { 
        s.prop1=NPR.metrics.fixEncoding(NPR.metrics.vstag["text"].toLowerCase());
        s.prop2="zero";  // default is no search results, will be overwritten below if > 0
        if (NPR.metrics.vstag.searchResults && NPR.metrics.vstag.searchResults > 0) {
            s.prop2=NPR.metrics.vstag["searchResults"];
        }
    }
        
    s.prop5=NPR.metrics.vstag["pageTypeId"];
    if (NPR.metrics.vstag.omnitureContentType) {
        s.prop5=NPR.metrics.vstag["omnitureContentType"];
    }

    // bug SFW-604
    if(!(NPR.metrics.vstag["primaryTopic"] || NPR.metrics.vstag["assignedTopics"])) { // undefined, null, empty, false -- all the same for this purpose
        switch(NPR.metrics.vstag["programId"]) {
            case '4':     // Performance Today
            case '19':    // Jazz Profiles
            case '20':    // JazzSet with Dee Dee Bridgewater
            case '24':    // Marian McPartland's Piano Jazz
            case '31':    // Symphonycast
            case '34':    // Thistle & Shamrock
            case '36':    // World of Opera
            case '37':    // All Songs Considered
            case '39':    // World Cafe
            case '43':    // From the Top
                NPR.metrics.vstag["primaryTopic"] = '1039'; // Music
                NPR.metrics.vstag["assignedTopics"] = '1039';
                break;
        }
    }
    
    s.prop6=document.location.hostname;
    s.prop7=NPR.metrics.vstag["primaryTopic"];
    s.prop8=NPR.metrics.vstag["tier"];
    s.prop12=NPR.metrics.vstag["howLongAgo"];
    s.prop13=NPR.metrics.vstag["userHash"];
    s.prop14=NPR.metrics.vstag["pageDepth"];
    s.prop15=NPR.metrics.vstag["segNum"];
    s.prop16=NPR.metrics.vstag["preferredStation"];
    s.channel=NPR.metrics.vstag["channel"];
    
    if(NPR.metrics.vstag.hierarchy) {
    	s.hier1 = NPR.metrics.fixEncoding(NPR.metrics.vstag["hierarchy"]);
    }
    
       
    // get the canoical url by figuring out the id query param and removing everything else  
    // just use the relative path, as well
    var idString = document.location.search.replace(/.*([?&]\w*id=\d+).*/i, "$1");
    idString = idString.replace(/^&/, '?');
    
    // bug 9813. Need to strip some suffix
    var idString4Prop17 = idString;
    idString4Prop17 = idString4Prop17.replace(/([?&]ps=[^?&#]+)/gi,"");
    idString4Prop17 = idString4Prop17.replace(/([?&]text=[^?&#]+)/gi,"");
    idString4Prop17 = idString4Prop17.replace(/([?&]pageDepth=[^?&#]+)/gi,"");
    idString4Prop17 = idString4Prop17.replace(/([?&]value[^?&#]+)/gi,"");
    idString4Prop17 = idString4Prop17.replace(/([?&]ft=[^?&#]+)/gi,"");
    idString4Prop17 = idString4Prop17.replace(/([?&]f=[^?&#]+)/gi,"");
    s.prop17 = document.location.pathname + idString4Prop17;
    s.prop18=NPR.metrics.vstag["assignedTopics"];
    s.prop19=NPR.metrics.vstag["date"];
    s.prop20=NPR.metrics.vstag["orgId"];
    s.prop21=NPR.metrics.vstag["programId"];
    s.prop22=NPR.metrics.vstag["searchProgramId"];
    s.prop23=NPR.metrics.vstag["searchTopicId"];
    s.prop24=NPR.metrics.vstag["storyLength"];
    if (NPR.metrics.vstag.byline) {
        s.prop30=NPR.metrics.fixEncoding(NPR.metrics.vstag["byline"]);
    }
    s.prop31=NPR.metrics.vstag["aggIds"];
    s.prop32=NPR.metrics.vstag["artists"];

    s.events="";
    if(NPR.metrics.vstag.omnitureEvent) {
        s.events=NPR.metrics.vstag.omnitureEvent;
    }


    // fixes bug 9793
    var psarray = document.URL.split('ps=');
    if(psarray.length>1)
    {
        var psvalue = psarray[1].split('&')[0];
        s.prop37=psvalue;
        s.eVar37=psvalue;
        s.events += (s.events?',':'')+NPR.metrics.constants.PROMOTION;
    }

    // bug SFW-433
    // we'll consider these in order, so add new ones with that in mind
    // we could probably do this as one giant regex, but this will be easier to understand later
    var regExps = [new RegExp('/programs/[^/]+/'),
                   new RegExp('/news/specials/[^/]+/'),
                   new RegExp('/blogs/[^/]+/'),
                   new RegExp('/.*/')];
    var uriexcerpt = false;
    var matchArray = false;
    var pathOnly = document.URL.split('npr.org', 2)[1];
    
    for(var ri=0;ri<regExps.length;ri++) {
        matchArray = regExps[ri].exec(pathOnly);
        if(matchArray && matchArray.length) {
            uriexcerpt = matchArray[0];
            break;
        }
    }
    
    if(uriexcerpt !== false) {
        s.prop33=uriexcerpt;
    }
        
    //SFW-2029
    s.prop45 = NPR.metrics.vstag["profileTier"];
    
    var products = [];
   
    if (NPR.metrics.vstag.aggIds && NPR.metrics.vstag.aggIds.length > 0) {
    	products.push(NPR.metrics.vstag["aggIds"]);
    }

    if (NPR.metrics.vstag.assignedTopics && NPR.metrics.vstag.assignedTopics.length > 0) {
    	products.push(NPR.metrics.vstag["assignedTopics"]);
    }

    if (NPR.metrics.vstag.byline && NPR.metrics.vstag.byline.length > 0) {
    	products.push(NPR.metrics.fixEncoding(NPR.metrics.vstag["byline"]));
    }

    if (NPR.metrics.vstag.artists && NPR.metrics.vstag.artists.length > 0) {
    	products.push(NPR.metrics.vstag["artists"]);
    }
    
    if (products.length > 0) {
    	var uniqueProducts = "";
    	
    	//only add unique values
    	for(var pi = 0; pi < products.length; pi++) {
    		if (uniqueProducts.indexOf(products[pi]) === -1){
    			uniqueProducts += products[pi] + ',';
    		}
    	}
    	
    	//remove the last comma
    	uniqueProducts = uniqueProducts.substring(0, uniqueProducts.length - 1);
    	s.products = ";" + uniqueProducts.replace(/,/g, ",;");
    }

    if(NPR.metrics.vstag.omniturePageName) {
        s.pageName=NPR.metrics.fixEncoding(NPR.metrics.vstag.omniturePageName);
        s.prop3=s.pageName;
    }

    //sfw-2004
    if(s.events.match(NPR.metrics.constants.EMAIL_STORY) !== null)
    {
	    s.prop41 = NPR.metrics.vstag["programId"];
	    s.prop42 = NPR.metrics.vstag["primaryTopic"];
	    s.prop34 = NPR.metrics.vstag["emailedURL"];
	    s.prop40 = NPR.metrics.vstag["ctRecipients"];
    }
    
    if(document.URL.indexOf("refresh=true")>-1) // fixes bug 9902
    {
        // should we do a call to NPR.metrics.pageEvent instead?
        s.events=NPR.metrics.constants.AUTO_REFRESH;
        s.linkTrackVars='events,prop17,eVar17';
        s.linkTrackEvents=NPR.metrics.constants.AUTO_REFRESH;
        s_code=s.tl(true, 'o', s.events);
    }
    else
    {
        s_code=s.t();
    }
};




/*
Firing events: use NPR.metrics.event

attributes in paramsObj:
-> type (defaults to generic, see type constants at top)

-> Normal event
- category (required string)
- action (required string)
- label (optional string)
- value (optional int)

-> Social event
- network (required string)
- action (required string)
- target (optional string)
- pagePath (optional string)

*/
NPR.metrics.event = function( paramsObj ){

      NPR.ga.event( paramsObj );

}



//deprecated function.  Use NPR.metrics.event moving forward.
NPR.metrics.pageEvent = function(vsEventName, thisObj, stationLetters, headline) {
	
	if (vsEventName === 'comment_added') {
    s.linkTrackVars='events,prop17,eVar17';
    s.linkTrackEvents=NPR.metrics.constants.COMMENT_ADDED;
    s.events=NPR.metrics.constants.COMMENT_ADDED;
    s.tl(true,'o', NPR.metrics.constants.COMMENT_ADDED);
    
    NPR.metrics.event({
      type: NPR.metrics.constants.EVENT_TYPE_SOCIAL,
      network: 'internal',
      action: 'Comment'
    });

  }
  else if (vsEventName === 'station_favorite')
  {
    NPR.metrics.event({
      category: 'Favorite',
      action: 'Station',
      label: stationLetters
    });
  }
	else if (vsEventName === 'station_headline_clicked') {
		s.linkTrackVars='eVar16,events';
		s.linkTrackEvents=NPR.metrics.constants.STATION_HEADLINE_CLICKED;
		s.events=NPR.metrics.constants.STATION_HEADLINE_CLICKED;
		s.eVar16=stationLetters;
		s.tl(this,'o', stationLetters + ':' + headline);         
    }
    else if (vsEventName === 'station_search') {
    	s.linkTrackVars='events,prop17,eVar17,prop43,eVar43';
        s.linkTrackEvents=NPR.metrics.constants.STATION_SEARCH;
    	s.events=NPR.metrics.constants.STATION_SEARCH;
   	      	
        s.tl(thisObj,'o', NPR.metrics.constants.STATION_SEARCH_PERFORMED);
    }
    else if (vsEventName === 'station_search_donate') {
    	s.linkTrackVars='events,prop17,eVar17,prop43,eVar43';
        s.linkTrackEvents=NPR.metrics.constants.STATION_SEARCH_DONATE;
    	s.events=NPR.metrics.constants.STATION_SEARCH_DONATE;
   	      	
        s.tl(thisObj,'o', NPR.metrics.constants.STATION_SEARCH_PERFORMED);
    }
    else if (vsEventName === 'station_link_clicked') {
    	s.linkTrackVars='events,prop17,eVar17,eVar35';
        s.linkTrackEvents=NPR.metrics.constants.STATION_LINK_CLICKED;
    	s.events=NPR.metrics.constants.STATION_LINK_CLICKED;
    	
        s.tl(thisObj,'o', NPR.metrics.constants.STATION_LINK_CLICKED);
    }
    else if (vsEventName === NPR.metrics.constants.CLICK_RSS_LINK 		||
             vsEventName === NPR.metrics.constants.CLICK_PODCAST_LINK	||
             vsEventName === NPR.metrics.constants.IMAGE_ENLARGEMENT	||
             vsEventName === NPR.metrics.constants.ADD_TO_PLAYLIST		||
             vsEventName === NPR.metrics.constants.STATION_DRAWER_OPEN	||
             vsEventName === NPR.metrics.constants.LISTEN_DRAWER_OPEN	||
             vsEventName === NPR.metrics.constants.SPONSOR_DRAWER_OPEN  ||
             vsEventName === NPR.metrics.constants.EXCERPT_VIEWED       ||
             vsEventName === NPR.metrics.constants.PURCHASE_INFO_VIEWED) {
    	
        s.linkTrackVars='events,prop17,eVar17';
        s.linkTrackEvents=vsEventName;
        s.events=vsEventName;
        s.tl(true,'o', vsEventName);
    }
};