Tagging = function(context) {
  this.site = 'sl-gaming';
  this.zone = 'default';
  this.protocol = window.location.protocol;
  this.autodetect_url = this.protocol + '//cts.p24.hu/service/detect/';
  this.context = context;
  this.positions = {};
  this.positions_weighted = {};

  this.positions['head'] = '[{\"service_name\": \"Sanoma\", \"weight\": null, \"source\": \"<script src=\\"//stat.p24.hu/mobile_detect/mobile_detect.js\\"></script>\"}, {\"service_name\": \"Sanoma\", \"weight\": null, \"source\": \"<script type=\\"text/javascript\\" src=\\"//segment.p24.hu/cerment.min.js\\" async></script>\"}, {\"service_name\": \"Google Adverts\", \"weight\": null, \"source\": \"<script>    if (typeof _ceDeviceDetect != \'undefined\' && typeof _ceDeviceDetect.getDeviceType == \'function\') {        var _ceDisplayData = _ceDisplayData || {},            googletag,            loader = function (multipleAds) {                _ceDisplayData.gpt = _ceDisplayData.gpt || { items: [], defContName: \'div-gpt-ad\' };                (function () {                    var scriptInserter = document.createElement(\'script\');                    scriptInserter.src = \'https://www.googletagservices.com/tag/js/gpt.js\';                    scriptInserter.async = true;                    /*document.head.appendChild(scriptInserter);*/                    document.head.insertBefore(scriptInserter, document.head.firstChild);                })();                if (multipleAds) {                    googletag = {};                    googletag.cmd = [];                } else {                    googletag = googletag || {};                    googletag.cmd = googletag.cmd || [];                }                googletag.cmd.push(function () {                    googletag.pubads().enableSingleRequest();                    googletag.pubads().collapseEmptyDivs();                    googletag.enableServices();                });            };        loader();        window.addEventListener(\'_ceDisplayDataLoadHeader\', loader);    }</script>\"}, {\"service_name\": \"Google Adverts\", \"weight\": null, \"source\": \"<script>    (function () {        if (window.Element && !Element.prototype.closest) {            Element.prototype.closest = function (s) {                var matches = (this.document || this.ownerDocument).querySelectorAll(s),                    i,                    el = this;                do {                    i = matches.length;                    while (--i >= 0 && matches.item(i) !== el) { };                } while ((i < 0) && (el = el.parentElement));                return el;            };        }        window.googletag = window.googletag || { cmd: [] };        googletag.cmd.push(function () {            window.googletag.pubads().addEventListener(\'slotRenderEnded\', function (event) {                if (event.isEmpty) {                    var slotEl = document.getElementById(event.slot.getSlotId().getDomId());                    try {                        var advEl = slotEl.closest(\\".goAdverticum\\");                        if (advEl != undefined && advEl != null && advEl.contains(slotEl)) {                            slotEl = advEl;                        }                    } catch (e) { }                    slotEl.style.display = \'none\';                }            });        });    })();</script>\"}]';
  this.positions_weighted['head'] = false;
  
  this.positions['body-start'] = '[{\"service_name\": \"Google Tag Manager\", \"weight\": null, \"source\": \"<noscript><iframe src=\\"//www.googletagmanager.com/ns.html?id=GTM-W5GTVDJ\\"height=\\"0\\" width=\\"0\\" style=\\"display:none;visibility:hidden\\"></iframe></noscript><script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({\'gtm.start\':new Date().getTime(),event:\'gtm.js\'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!=\'dataLayer\'?\'&l=\'+l:\'\';j.async=true;j.src=\'//www.googletagmanager.com/gtm.js?id=\'+i+dl;f.parentNode.insertBefore(j,f);})(window,document,\'script\',\'dataLayer\',\'GTM-W5GTVDJ\');</script>\"}]';
  this.positions_weighted['body-start'] = false;
  
  this.positions['body-end-adv'] = '[]';
  this.positions_weighted['body-end-adv'] = false;
  
  this.positions['body-end'] = '[{\"service_name\": \"Google Adverts\", \"weight\": null, \"source\": \"<script type=\\"text/javascript\\">    (function(){        var googleCPLink = (\\"${google_cookie_policy_link}\\" != \\"\\") ? \\"${google_cookie_policy_link}\\" : \\"http://centralmediacsoport.hu/Company/Central-Digitalis-Media-Adatkezelesi-tajekoztato\\";        var googleCPRename = (\\"${google_cookie_policy_rename}\\" != \\"\\") ? \\"${google_cookie_policy_rename}\\" : 1;            window.cookieconsent_options = {            \\"message\\"   : \\"A weboldalon cookie-kat haszn&#xE1;lunk, hogy biztons&#xE1;gos b&#xF6;ng&#xE9;sz&#xE9;s mellett a legjobb felhaszn&#xE1;l&#xF3;i &#xE9;lm&#xE9;nyt ny&#xFA;jthassunk.\\",            \\"dismiss\\"   : \\"Rendben!\\",            \\"learnMore\\" : \\"R&#xE9;szletes le&#xED;r&#xE1;s\\",            \\"link\\"      : googleCPLink,            \\"theme\\"     : \\"//stat.p24.hu/CTS/helper-scripts/cookieconsent/styles/custom.css\\",            \\"expiryDays\\": 1095,            \\"renamed\\"   : googleCPRename        };    })();</script><script type=\\"text/javascript\\" src=\\"//stat.p24.hu/CTS/helper-scripts/cookieconsent/cookieconsent.min.js\\"></script>\"}]';
  this.positions_weighted['body-end'] = false;
  
  this.positions['game-preroll'] = '[{\"service_name\": \"WeeGoo\", \"weight\": null, \"source\": \"<script>var wg_loader_width = \'100%\';if (\'${wg_height}\' != \'\') {    var wg_loader_height = \'${wg_height}px\';}(function () {    if (typeof _ceDeviceDetect.getDeviceType() != \'undefined\' && _ceDeviceDetect.getDeviceType() != \'mobile\') {        var wgScript = [],            _ceCTSData = window._ceCTSData || {};        if (_ceCTSData.preroll != undefined && !_ceCTSData.preroll) {            return false;        }        try {            parameter = JSON.parse(\'${wg_params}\');            for (var key in parameter) {                if (parameter.hasOwnProperty(key)) {                    window[key] = parameter[key]                }            }        } catch (e) {        }        wgScript[0] = document.createElement(\'SCRIPT\');        wgScript[1] = wgScript[0].cloneNode();        wgScript[0].type = wgScript[1].type = \'text/javascript\';        wgScript[0].src = \'//st.wgplayer.com/jatekstart.com/wgAds.desktop.conf.js\';        wgScript[1].src = \'//st.wgplayer.com/jatekstart.com/js/dqhTLcwF_os9ahhfQZpUkg/2313514349/wgAds.js\';        for (var i = 0; i < wgScript.length; i++) {            document.body.appendChild(wgScript[i]);        }    }})();</script>\"}]';
  this.positions_weighted['game-preroll'] = false;
}

Tagging.prototype.get_json = function(text) {
  return !(/[^,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]/.test(text.replace(/"(\\.|[^"\\])*"/g, '')))
         && eval('(' + text + ')');
}

Tagging.prototype.random_tag = function(position) {
  var tags = [];
  var weighted_tags = [];

  for (index in position) {
    tag = position[index];
    tags[index] = tag.source;

    for (var i = 0; i < tag.weight; i++) {
      weighted_tags.push(index);
    }
  }

  // Pick a random tag from array based on weight
  var random_index = weighted_tags[Math.floor((Math.random() * weighted_tags.length))];
  return tags[random_index];
}

Tagging.prototype.all_tags = function(position) {
  var tags = [], index, tag;
  for (index in position) {
    tag = position[index];
    tags[index] = tag.source;
  }
  return tags.join("\n");
}

Tagging.prototype.render = function(slug, context) {
    document.write(this.get_source(slug, context));
}

Tagging.prototype.get_source = function(slug, context) {
  if (typeof this.positions[slug] == 'undefined') {
    // This position doesn't exist, call the autodetect
    this._detect(slug);
  } else {
    var position = this.get_json(this.positions[slug]);
    var tag_source = "";

    if (this.positions_weighted[slug]) {
      tag_source = this.random_tag(position)
    } else {
      tag_source = this.all_tags(position);
    }

    // Replace variables
    var variables = {};
    for (variable in this.context) {
      variables[variable] = this.context[variable];
    }
    for (variable in context) {
      variables[variable] = context[variable];
    }
    tag_source = this._replace_variables(tag_source, variables);

    // Remove unset variables and return result
    return tag_source.replace(/\$\w+/g, "").replace(/\${\w+}/g, "");
  }
  return '';
}

Tagging.prototype.log = function(err) {
  //this._load(error_endpoint);
}

Tagging.prototype._load = function(url) {
  var head = document.getElementsByTagName('head')[0] || document.documentElement,
      script = document.createElement('script');

  script.type = 'text/javascript';
  script.src = url;
  head.appendChild(script);
}

Tagging.prototype._detect = function(position) {
  this._load(this.autodetect_url + this.site +'/'+ this.zone +'/' + position + '/');
}

Tagging.prototype._replace_variables = function(content, variables) {
  var RE_VALID_IDENT = /^[a-zA-Z_]\w*$/;
  for (variable in variables) {
    if (RE_VALID_IDENT.test(variable)) {
      var regexes = [new RegExp('\\$' + variable, 'g'), new RegExp('\\${' + variable + '}', 'g')];

      for (re in regexes) {
        content = content.replace(regexes[re], variables[variable]);
      }
    } else {
      throw "'" + variable + "' is not a valid identifier.";
    }
  }
  return content;
}