// jscs:disable requirecamelcaseoruppercaseidentifiers

'use strict';

$(function() {
  $.ajax({
    url: 'https://api.github.com/repos/vsn4ik/bootstrap-submenu',
    success: function(data) {
      // xss check
      if (typeof data.stargazers_count != 'number') {
        return;
      }

      var $group = $('<div class="input-group"><span class="input-group-btn"></span></div>');

      $group.append('<span class="input-group-addon">' + data.stargazers_count + '&nbsp;<span class="octicon octicon-star"></span></span>');

      $('#gh-view-link').wrap($group);
    }
  });

  /**
   * document.documentelement: 'html', for mozilla firefox
   * document.body: 'body', for other browsers
   */
  var containers = [
    document.body,
    document.documentelement
  ];

  var $scrollbtn = $('#scroll-top');

  function updatescrollbtncls() {
    var scrolltop = containers.reduce(function(result, element) {
      return result + element.scrolltop;
    }, 0);

    $scrollbtn.toggleclass('hidden', scrolltop < 100);
  }

  $scrollbtn.on('click', function() {
    window.onscroll = null;

    $(this).addclass('hidden');

    // 'html' for mozilla firefox, 'body' for other browsers
    $(containers).animate({
      scrolltop: 0
    }, 800, $.proxy(function() {
      window.onscroll = updatescrollbtncls;
    }, this));
  });

  window.onscroll = updatescrollbtncls;

  // dropdown fix
  $('.dropdown > a[tabindex]').on('keydown', function(event) {
    // 13: return

    if (event.keycode == 13) {
      $(this).dropdown('toggle');
    }
  });

  // для отмены закрытия при клике на неактивный элемент либо padding
  $('.dropdown-menu').on('click', function(event) {
    if (this === event.target) {
      event.stoppropagation();
    }
  });

  $('[data-submenu]').submenupicker();

  updatescrollbtncls();
  hljs.inithighlighting();
});