var sendedStats = {};

function ErrorLog(cookieName, cookieValue, errorSave) {
    cookieValue+='|'+((new Date()).getTime())/1000;
    if (errorSave) document.cookie = cookieName + '=' + encodeURIComponent(cookieValue) + '; path=/';
    else if (document.cookie.indexOf(cookieName+'=')!=-1) document.cookie = cookieName + '=; path=/; expires=Thu, 01 Jan 1970 00:00:01 GMT;';
}

function SendEvent(eventName) {
    if (eventName in sendedStats) return;
    // build url
    var vId = document.body.getAttribute("vId");
    var msg = 'event='+eventName+'&eventPage='+encodeURIComponent(window.location.href)+'&visitId='+encodeURIComponent(vId?vId:0);
    var url = '/aux/collect.cgi';
    // send info
    if (typeof navigator.sendBeacon !== "undefined") {
	var blob = new Blob([msg], {type : 'application/x-www-form-urlencoded'});
	navigator.sendBeacon(url, blob);
    }
    // update sended stats (we send only uniq event)
    sendedStats[eventName]=true;
}

function CollectVideoEvents(videoElem) {
    videoElem.addEventListener('error',function(evt){SendEvent('videoBad');},false);
    if (/iphone|ipad|ipod/i.test(navigator.userAgent)) videoElem.addEventListener('webkitbeginfullscreen',function(evt){SendEvent('videoZoom');},false);
    else {
	var fullscreenEventName = ('onwebkitfullscreenchange' in document ? 'webkitfullscreenchange': 'onfullscreenchange' in document ? 'fullscreenchange' : 'onmozfullscreenchange' in document ? 'mozfullscreenchange' : 'MSFullscreenChange');
	document.addEventListener(fullscreenEventName,function(evt){SendEvent('videoZoom');},false);
    }
}

function StartCollectEvents() {
    if (!document.addEventListener || !window.XMLHttpRequest) return;
    // add nav listener
    var nav = document.getElementById("topControls");
    if (nav!=null) {
	var navAnchors = nav.getElementsByTagName("a");
	for (var x=0;x<navAnchors.length;x++) {
	    navAnchors[x].addEventListener('click',function(evt) {
		var eventName = (evt.target.innerHTML=='Home'?'homeClick':'archiveClick');
		SendEvent(eventName);
	    },false);
	}
    }
    // listen video events
    var videoShowArea = document.getElementById("videoShowArea");
    if (videoShowArea!=null && window.getComputedStyle(videoShowArea).display=='block') {
	var videos = videoShowArea.querySelectorAll("video");
	for (var x=0;x<videos.length;x++) CollectVideoEvents(videos[x]);
    }
    // send show events
    if (videoShowArea!=null && window.getComputedStyle(videoShowArea).display=='block') {SendEvent('videoShow');}
    var embedShowArea = document.getElementById("embedShowArea");
    if (embedShowArea!=null && window.getComputedStyle(embedShowArea).display=='block') {SendEvent('embedShow');}
    var pictureShowArea = document.getElementById("pictureShowArea");
    if (pictureShowArea!=null && window.getComputedStyle(pictureShowArea).display=='block') {SendEvent('pictureShow');}
    // listen hardlink clicks
    var hardlinks = document.querySelectorAll(".header a.hardlink");
    for (var x=0;x<hardlinks.length;x++) hardlinks[x].addEventListener('click', function(evt) {SendEvent('hardlinkClick');});
    // listen icon clicks
    var menuIcon = document.querySelector("label[for='minifyMenuButton']");
    if (menuIcon!=null) menuIcon.addEventListener('click',function(evt) {SendEvent('menuiconClick');});
    else {
	var topIcon = document.querySelector(".header label");
	if (topIcon!=null) topIcon.addEventListener('click',function(evt) {SendEvent('topiconClick');});
    }
    // listen logo events
    var logo = document.querySelector(".logo");
    if (logo==null) logo = document.querySelector("h1");
    if (logo!=null) logo.addEventListener('click',function(evt) {SendEvent('h1logoClick');});
    // listen niche events
    var tnt = document.querySelector(".textNichesTop");
    if (tnt!=null) {
	tnt.addEventListener('scroll',function(evt) {SendEvent('textnicheScroll');});
	var tntAnchors = tnt.getElementsByTagName("a");
	for (var x=0;x<tntAnchors.length;x++) {
	    tntAnchors[x].addEventListener('click',function(evt) {
		var eventName = (typeof evt.target.dataset.current!="undefined" ? 'hometntClick' : 'textnicheClick');
		SendEvent(eventName);
	    },false);
	}
    }
}

function AddListener(elem, event, fn) {
    if (elem.addEventListener) elem.addEventListener(event, fn, false);
    else elem.attachEvent("on" + event, function() {return(fn.call(elem, window.event));});
}

function AddQueryParam(url, param) {
    if (param!='' && url.indexOf(param)==-1 && url.indexOf(encodeURIComponent(param))==-1) url+=(url.indexOf("?")!=-1?'&':'?')+param;
    return url;
}

function SendTradeClickAdv(evt) {
    // restore source url
    if (this.getAttribute("surl")) this.setAttribute('href', this.getAttribute("surl"));
    var hrefUrl = this.getAttribute("href");
    // build request url
    var processUrl = '/aux/tradeclick.cgi?eventPage='+encodeURIComponent(window.location.href)+'&eventTarget='+encodeURIComponent(hrefUrl);
    if (this.getAttribute("sk")) processUrl=AddQueryParam(processUrl, 's='+encodeURIComponent(this.getAttribute("sk")));
    // send request
    var xhr = new XMLHttpRequest();
    xhr.open('GET', processUrl, false);
    xhr.send();
    // process result
    if (xhr.status == 200) {
	var resultUrl=xhr.responseText;
	if (resultUrl!="" && resultUrl!="content") {
	    if (!this.getAttribute("surl")) this.setAttribute("surl",hrefUrl);
	    this.setAttribute("href", resultUrl);
	}
    }
    // process error
    ErrorLog('jsClickErr', (xhr.status+'|'+xhr.statusText+'|'+window.location.href+'|advClick'), (xhr.status!=200));
}

function SendTradeClickSimple(evt) {
    if (typeof navigator.sendBeacon === "undefined") return;
    // build click info
    var hrefUrl = this.getAttribute("href");
    var clickInfo = 'eventPage='+encodeURIComponent(window.location.href)+'&eventTarget='+encodeURIComponent(hrefUrl);
    // send info
    var blob = new Blob([clickInfo], {type : 'application/x-www-form-urlencoded'});
    var result = navigator.sendBeacon('/aux/tradeclick.cgi', blob);
    // process error
    ErrorLog('jsClickErr', (xhr.status+'|'+xhr.statusText+'|'+window.location.href+'|smpClick'), (result!=true));
}

function GetShowedThumbsId() {
    var thumbsId = [];
    var thumbsBlocks = document.querySelectorAll(".thumbs");
    for (var i=0;i<thumbsBlocks.length;i++) {
	var anchors=thumbsBlocks[i].getElementsByTagName('a');
	for (var j=0;j<anchors.length;j++) {
	    var thumbId = anchors[j].getAttribute("data-thumb-id");
	    if (thumbId!=null && thumbId!='') thumbsId.push(thumbId);
	}
    }
    return thumbsId;
}

function GetShowedBannersId() {
    var bannersId = [];
    var bId = document.body.getAttribute("bId");
    if (bId && bId!='') bannersId = bId.split(', ');
    return bannersId;
}

function SendTradeIn() {
    var vId = document.body.getAttribute("vId");
    // save main param of request
    var processUrl = '/aux/tradein.cgi?eventPage='+encodeURIComponent(window.location.href)+'&eventReferer='+encodeURIComponent(window.document.referrer);
    if (1500<processUrl.length) processUrl = processUrl.substr(0,1500);
    if (vId) processUrl+='&visitId='+encodeURIComponent(vId);
    // non standard type visit
    if (window.performance && performance.navigation.type!=0) processUrl+='&visitType='+encodeURIComponent(performance.navigation.type);
    // save showed thumb id
    var showedThumbsId = GetShowedThumbsId();
    for (var j=0;j<showedThumbsId.length;j++) processUrl+='&pos'+encodeURIComponent(j)+'='+encodeURIComponent(showedThumbsId[j]);
    // save showed banners id
    var showedBannersId = GetShowedBannersId();
    for (var j=0;j<showedBannersId.length;j++) processUrl+='&bpos'+encodeURIComponent(j)+'='+encodeURIComponent(showedBannersId[j]);
    // send info
    var xhr = new XMLHttpRequest();
    xhr.open('GET', processUrl, true);
    xhr.timeout = 1000;
    xhr.onreadystatechange = function() {
	if (xhr.readyState == 4 && !xhr.status) {
	    var xhrS = new XMLHttpRequest();
	    xhrS.open('GET', processUrl, false);
	    xhrS.send();
	    // process error
	    ErrorLog('jsInErr', (xhrS.status+'|'+xhrS.statusText+'|'+window.location.href+'|sIn'), (xhrS.status!=200));
	}
	else if (xhr.readyState == 4) {
	    ErrorLog('jsInErr', (xhr.status+'|'+xhr.statusText+'|'+window.location.href+'|aIn'), (xhr.status!=200));
	}
    }
    xhr.send();
}

function StartCollectTradeStats() {
    if (!window.XMLHttpRequest) return;
    // send in info immediately
    SendTradeIn();
    // for each links in block thumbs
    var thumbsBlocks = document.querySelectorAll(".thumbs");
    for (var i=0;i<thumbsBlocks.length;i++) {
	var anchors=thumbsBlocks[i].getElementsByTagName('a');
	for (var j=0;j<anchors.length;j++) {
	    if (/\/out.cgi|\/out.cgi\?/.test(anchors[j].href)) continue;
	    AddListener(anchors[j], 'click', SendTradeClickAdv);
	}
    }
    // for each links with out.cgi and trade top
    var l = document.links;
    for(var i=0; i<l.length; i++) {
	if (/\/out.cgi|\/out.cgi\?/.test(l[i].href)) AddListener(l[i], 'click', SendTradeClickAdv);
	else if (/\/top\//.test(l[i].href)) AddListener(l[i], 'click', SendTradeClickSimple);
    }
    // for each hardlinks top
    var hardLinkTops = document.querySelectorAll(".hardLinkTop");
    for (var i=0;i<hardLinkTops.length;i++) {
	var anchors=hardLinkTops[i].getElementsByTagName('a');
	for (var j=0;j<anchors.length;j++) AddListener(anchors[j], 'click', SendTradeClickSimple);
    }
}

try {
    if (typeof collectEvents != "undefined" && collectEvents!=0) StartCollectEvents();
    if (typeof asyncStats != "undefined" && asyncStats!=0) StartCollectTradeStats();
}
catch(ex) {
    var errorStr = 'msg='+encodeURIComponent(ex.message)+'&name='+encodeURIComponent(ex.name)+'&page='+encodeURIComponent(window.location.href);
    SaveError(errorStr);
}

function SaveError(errorStr) {
    var el = document.createElement('img');
    el.style.width=el.style.height=1+'px';
    el.src='/aux/collect.cgi?'+errorStr;
    document.body.appendChild(el);
}