var epomCustomParams = epomCustomParams || {trinityConfig: ""};
var mobileAdsParams = mobileAdsParams || {};

function trinityConfigInit(jsonString) {
  params = JSON.parse(jsonString);
  var trinityConfig = {links:[]};
  if (params.encodeData.length && params.fileName.length) {
    trinityConfig.links.push({type:'4sh', aclass:'trinityDownload', filename:params.fileName});
    trinityConfig.sharedHelperData = params.encodeData;
    trinityConfig.globalFileName = params.fileName;
  } else {
    trinityConfig.links.push({type:'4sh', aclass:'trinityDownload'});
  }

  trinityConfig.sharedLogin = params.isLoggedIn;

  epomCustomParams = {
    trinityConfig: encodeURIComponent(encodeURIComponent((typeof(JSON) == 'object') ? JSON.stringify(trinityConfig) : ((typeof(Object.toJSON) == 'function') ? Object.toJSON(trinityConfig) : '')).replace(/'/g, "%27")),
    filetype: params.category,
    loggedin: params.isLoggedIn,
    query: params.searchTerm
  };

  mobileAdsParams = {
    lang: params.lang,
    sharedHelperData: params.encodeData,
    fileName: params.fileName,
    filetype: params.category,
    loggedin: params.isLoggedIn
  }
}

var EpomConfig = EpomConfig || {ads: []};

function addEpomAds(jsonString) {
  params = JSON.parse(jsonString);
  var customParams;
  if (params.placementInfo == 'mobileAds') {
    customParams = mobileAdsParams;
  } else {
    customParams = epomCustomParams;
  }

  EpomConfig.ads.push({
    epom_key: params.key,
    epom_channel: "",
    epom_code_format: params.format,
    epom_ads_host: "//" + (params.adsHost || Config.epomHost),
    epom_click: "",
    epom_custom_params: customParams,
    epom_width: params.width || '',
    epom_height: params.height || '',
    epom_target_id: 'epom-' + params.key
  });
  (function () {
    var sc = document.createElement("script");
    sc.type = "text/javascript";
    sc.async = true;
    sc.src = (location.protocol == "https:" ? "https:" : "http:") + "//" + (params.adsHost || Config.epomHost) + "\/js\/show_ads.js";
    sc.onerror = function(){
      Events.fireLazyEvent("epom.load.error.event", true);
    };

    var s = document.getElementsByTagName("script")[0];
    s.parentNode.insertBefore(sc, s);
  })();
}