// START ESSENS COMMON

var Essens = {
  data: {},
  rand: 'nh9bw',
  sentEvents: [],
  logSequence: 1,
  mouseoverDelay: 1000,
  mouseoverTimeout: null,

  docsToTrack: [],

  readCookie: function(key) {
    var result;
    return (result = new RegExp('(?:^|; )' + encodeURIComponent(key) + 
           '=([^;]*)').exec(document.cookie)) ? (result[1]) : null;
  },

  lazyLoadScriptIf: function(condition, url, listener) {
    var safelistener = function(){
      try {
        listener();
      } catch(e) {
        console.error(e);
        // do something with the error
      }
    };

    if (condition) {
      var script = document.createElement('script');
      var target = document.getElementsByTagName('script')[0];
      script.src = url;

      if (script.readyState && script.onload !== null) {
        script.onreadystatechange = function() {
          if ( script.readyState === "loaded" || 
               script.readyState === "complete" ) {
            script.onreadystatechange = null;
            safelistener();
          }
        };
      } else {
        script.onload = safelistener;
      }
      target.parentNode.insertBefore(script, target);
    } else {
      safelistener();
    }
  },

  // private property
  _b64keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",

  // public method for encoding
  b64encode: function(input) {
    var output = '';
    var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
    var i = 0;

    input = Essens._utf8_encode(input);

    while (i < input.length) {
      chr1 = input.charCodeAt(i++);
      chr2 = input.charCodeAt(i++);
      chr3 = input.charCodeAt(i++);

      enc1 = chr1 >> 2;
      enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
      enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
      enc4 = chr3 & 63;

      if (isNaN(chr2)) {
        enc3 = enc4 = 64;
      } else if (isNaN(chr3)) {
        enc4 = 64;
      }

      output = output +
      Essens._b64keyStr.charAt(enc1) + Essens._b64keyStr.charAt(enc2) +
      Essens._b64keyStr.charAt(enc3) + Essens._b64keyStr.charAt(enc4);
    }
    return output;
  },

  // private method for UTF-8 encoding
  _utf8_encode: function(string) {
    string = string.replace(/\r\n/g,"\n");
    var utftext = '';

    for (var n = 0; n < string.length; n++) {
      var c = string.charCodeAt(n);
      if (c < 128) {
        utftext += String.fromCharCode(c);
      }
      else if((c > 127) && (c < 2048)) {
        utftext += String.fromCharCode((c >> 6) | 192);
        utftext += String.fromCharCode((c & 63) | 128);
      }
      else {
        utftext += String.fromCharCode((c >> 12) | 224);
        utftext += String.fromCharCode(((c >> 6) & 63) | 128);
        utftext += String.fromCharCode((c & 63) | 128);
      }
    }
    return utftext;
  },

  toggleWhy: function() {
    var el = document.getElementById('essens-why-box');
    if (el) {
      if (typeof el.style.display ===  'undefined' || el.style.display === 'none' || el.style.display === '' ) {
        Essens.logEvent('ad-explanation');
        el.style.display = 'block';
      } else {
        el.style.display = 'none';
      }
    }
    return false;
  },

  append: function(element, html) {
    document.getElementById(element).innerHTML = html;

    var re = /<script\b[\s\S]*?>([\s\S]*?)<\//ig;
    var match;
    while (match = re.exec(html)) {
      eval(match[1]);
    }
  },

  addDocToTracking: function(udidOrAd, source, relevance, imageShown, adWeight, eCTR, pageViewFactor) {
    // Essens.addDocToTracking('#{theAd.udid}', '#{theAd.source.subSourceId}', '#{theAd.relevance}', is, n, '#{theAd.percentage}', '#{theAd.expectedCTR}', '#{theAd.pageWeightFactor}');
    var line;
    if (typeof udidOrAd === 'object') {
      var ad = udidOrAd;
      var is = ad.image ? 1 : 0;
      line = [ad.udid, ad.source.subSourceId, ad.relevance, is, ad.percentage, ad.expectedCTR, ad.pageWeightFactor].join(':');
    } else {
      line = [udidOrAd, source, relevance, imageShown, docRank, adWeight, eCTR, pageViewFactor].join(':');
    }

    if (Essens.docsToTrack.indexOf(line) === -1) {
      Essens.docsToTrack.push(line);
    }
  },

  trackUrl: function() {
    var hostname = (document.location.protocol === 'https:') ? 'ssl' : 'api';
    var imageUrl = document.location.protocol + '//' + hostname + '.essens.no/queryservices-ng/track?sq=0'
    // TODO: Modify check below to add referrer if origin is the same (meaning we are allowed to access top from an iframe)
    if (window == window.top) {
      imageUrl += '?rf=' + encodeURIComponent(top.document.referrer);
    }
    imageUrl += '&' + ESSENS_TRACK_PARAMS;
    if (Essens.docsToTrack.length) {
      imageUrl = imageUrl.replace(/&is=[^&]+/, '');
      imageUrl = imageUrl.replace(/&rv=[^&]+/, '');
      imageUrl = imageUrl.replace(/&hu=[^&]+/, '');
      imageUrl += '&hu=' + encodeURIComponent(Essens.docsToTrack.join(','));
    }
    return imageUrl;
  },

  trackStr: function() {
    return '<img src="' + Essens.trackUrl() + '" width="1" height="1" />';
  },

  cancelMouseover: function(ev) {
    clearTimeout(Essens.mouseoverTimeout);
  },

  logMouseover: function(ev) {
    Essens.mouseoverTimeout = setTimeout(function() {
      Essens.log('mouseover', Essens.data, 'wrapper');
    }, Essens.mouseoverDelay);
  },

  logEvent: function(type, event) {
    Essens.log(type, Essens.data, 'wrapper');
  },

  log: function(type, data, source, context, component, subComponent) {
    type      = type      || 'impression';
    data      = data      || {};
    component = component || 'ad';
    session   = window._ESSENS_PAGELOAD_ID;

    var ev = {system: 'ads', service: 'ad-server', source: source, component: component, sub_component: subComponent, context: context, session: session, sequence: Essens.logSequence, type: type, data: data};
    if (Essens.sentEvents.indexOf(type) === -1) {
      Essens.sentEvents.push(type);
      Essens._log(ev);
      Essens.logSequence += 1;
    }
  },

  _log: function(data) {
    var img = new Image(1, 1);
    // var src = '//l.essens.no/v1/ev.gif?f=b&e=' + encodeURIComponent(Essens.b64encode(JSON.stringify(data)));
    var src = '//l.essens.no/w/v1/ev.gif?f=b&e=' + encodeURIComponent(Essens.b64encode(JSON.stringify(data)));
    img.src = src;
  }
}

// fix for silly AV heuristics?
var _dmy = 'google';

// END OF ESSENS COMMON


// if (typeof top.jQuery !== 'undefined') eQ = top.jQuery;

var ESSENS_DATA = '{"t1":1452800269361,"pu":"http://www.adressa.no/pluss/nyheter/2016/01/14/Ingen-gjen%C3%A5pning-av-Fredlybekken-12023582.ece","iid":"w8yxi7cvqqza3gmf4szs","ccd":1,"tp":"passback","placementid":8,"br":"chrome","dv":"desktop","pd":"MA-NOE3-1452740226-I4D54L5","qid":"1452797846_kQtnVq","customerid":2549,"cid":2549,"geo":{},"page_udid":"MA-NOE3-1452740226-I4D54L5"}';
var ESSENS_AD = '';
var ESSENS_DEBUG = '';
var ESSENS_PASSBACK = '<scr'+'ipt type="text/javascript" src="'+adt_ADTECH1+'/addyn/3.0/'+adt_ADTECH2+'/ADTECH;alias='+adt_ADTECH5+';kvessens=true;'+adt_ADTECH6+';loc=100;target=_blank;grp='+adt_ADTECH4+';key=rubicon_passback+'+adt_ADTECH3+';misc='+new Date().getTime()+'"></scri'+'pt>';
var ESSENS_PASSBACK_TYPE = 'string';
var ESSENS_PASSBACK_PAYLOAD = '';
var ESSENS_TRACK_PARAMS = 't1=1452800269361&pu=http%3A%2F%2Fwww.adressa.no%2Fpluss%2Fnyheter%2F2016%2F01%2F14%2FIngen-gjen%25C3%25A5pning-av-Fredlybekken-12023582.ece&iid=w8yxi7cvqqza3gmf4szs&ccd=1&tp=passback&placementid=8&br=chrome&dv=desktop&pd=MA-NOE3-1452740226-I4D54L5&qid=1452797846_kQtnVq&customerid=2549&cid=2549';
var ESSENS_DO_TRACK = true;
var essensDoPassback = false;

if (typeof window._ESSENS_PAGELOAD_ID === 'undefined') {
  window._ESSENS_PAGELOAD_ID = (Math.random()+1).toString(36).substring(2,18) + '-' + 
    (Math.random()+1).toString(36).substring(2,8) + '-' + 
    (Math.random()+1).toString(36).substring(2,18);
}
if (typeof window._ESSENS_SEQUENCES === 'undefined') {
  window._ESSENS_SEQUENCES = {};
}

try {
  Essens.data = JSON.parse(ESSENS_DATA);
} catch(e) {
}

if (ESSENS_PASSBACK !== '') {
  essensDoPassback = true;
  if (ESSENS_PASSBACK_TYPE === 'string') {
    var passback_str = ESSENS_PASSBACK;
  } else {
    var passback_str = '<scr' + 'ipt type="text/javascript" charset="UTF-8" src="' + ESSENS_PASSBACK + '">' + ESSENS_PASSBACK_PAYLOAD + '</scr' + 'ipt>';
  }
}

var res = '<div class="essens-content-wrapper essens-response-type-';
res += (Essens && Essens.data && Essens.data.tp) ? Essens.data.tp : 'unknown';
res += '">';
if (ESSENS_AD) res += '<div class="essens-unit-container" onclick="Essens.logEvent(\'click\', event)" onmouseover="Essens.logMouseover(event)" onmouseout="Essens.cancelMouseover(event)">' + ESSENS_AD + '</div>';
if (essensDoPassback) res += passback_str;
res += '</div>';
document.write(res);
// This needs to be done after writing the actual ad(s), so that any 
// Essens.addDocToTracking() calls from the template are registered 
// before we construct the track string
if (ESSENS_DO_TRACK) document.write(Essens.trackStr());



if (ESSENS_DEBUG !== '') {
  ESSENS_DEBUG = '<a href="http://amon.essens.no/r/essens%3Aads%3Afull_debug%3A' + Essens.rand +  '" target="_blank">Full debug info<a> [' + Essens.rand + ']<br/>' + ESSENS_DEBUG.replace('**ESSENS_TRACK_STR**', '<a href="' + Essens.trackUrl() + '">' + Essens.trackUrl() + '</a>');
  // ESSENS_DEBUG = '<a href="http://localhost:5656/r/essens%3Aads%3Afull_debug%3A' + Essens.rand +  '" target="_blank">Full debug info<a><br/>' + ESSENS_DEBUG.replace('**ESSENS_TRACK_STR**', '<a href="' + Essens.trackUrl() + '">' + Essens.trackUrl() + '</a>');
  var debugId = 'essens-debug-container';
  var existing = top.document.getElementById(debugId);
  if (existing) {
    existing.innerHTML = ESSENS_DEBUG + '<hr style="border-top: 1px solid #bb9">' + existing.innerHTML;
  } else {
    var essensDebug = document.createElement('div');
    essensDebug.setAttribute('ondblclick', 'if (this.style.width === "300px") {this.style.width = "30px"; this.style.height = "30px"} else {this.style.width = "300px"; this.style.height = "auto"}');
    essensDebug.id = debugId;
    essensDebug.style.width = '300px';
    essensDebug.style.position = 'fixed'
    essensDebug.style.right = '5px'; 
    essensDebug.style.top = '5px'; 
    essensDebug.style.backgroundColor = 'rgba(255, 255, 255, 0.92)';
    essensDebug.style.padding = '10px';
    essensDebug.style.fontSize = '11px';
    essensDebug.style.fontFamily = 'Tahoma';
    essensDebug.style.lineHeight = '1.3em';
    essensDebug.style.border = '1px solid #ddd';
    essensDebug.style.boxShadow = '0 0 10px #aaa';
    essensDebug.style.overflow = 'scroll';
    essensDebug.style.maxHeight = '95%';
    essensDebug.style.zIndex = '99999999';
    essensDebug.style.whiteSpace = 'nowrap';
    var essensBody = top.document.getElementsByTagName('body')[0];
    essensBody.appendChild(essensDebug);  
    top.document.getElementById(essensDebug.id).innerHTML = ESSENS_DEBUG;
  }
}

if (typeof inDapIF !== 'undefined' && typeof EAS_resize_fif !== 'undefined') {
  // setTimeout("EAS_resize_fif(true, 180, document.getElementById('essens_tmpl_1').offsetHeight)", 1000);
}