"use strict";
/** GA list for event */
var event_gaList = [
  {'tag': '', 'type': 'gaq'},
  {'tag': 'b', 'type': 'gaq'},
  {'tag': 'c', 'type': 'gaq'},
  {'tag': 'uaa', 'type': 'ga'},
  {'tag': 'uab', 'type': 'ga'}
];

/** event sending class For related article */
var RelatedArticle = function() {};
RelatedArticle.labelList = {};
RelatedArticle.redirectUrl = '';
RelatedArticle.sendEvent = function(link, page, gaList) {
  var __getLabel = function(pageUri) {
    var labelList = RelatedArticle.labelList;

    var label = '';
    for (var idx in labelList) {
      if (pageUri.indexOf(labelList[idx].page) == -1) continue;
      label = labelList[idx];
      break;
    }

    return label;
  };

  var __getEvent = function(type) {
    if (type==='gaq') {
      return function(tag, category, action, label) {
        var prefix = (tag=='' ? '' : tag+'.');
        _gaq.push([prefix+'_trackEvent', category, action, label]);
      };
    }

    if (type==='ga') {
      return function(tag, category, action, label) {
        var prefix = (tag=='' ? '' : tag+'.');
        ga(prefix+'send', 'event', category, action, label);
      };
    }

    return function(tag, category, action, label) {};
  }
  var label = __getLabel(link.href);

  var eventCategory = '関連記事_'+label.sensation,
    eventAction = 'クリック',
    eventLabel = label.tag;

  for (var idx in gaList) {
    // send event
    __getEvent(gaList[idx].type)(gaList[idx].tag, eventCategory, eventAction, eventLabel);
  }

  // set redirect url
  RelatedArticle.redirectUrl = link.href;
  // redirect after 0.5 seconds
  setTimeout(function() {
    location.href = RelatedArticle.redirectUrl;
  }, 500);
}