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Al_Caughey / count  absents

// ==UserScript==
// @name count absents
// @namespace    http://tampermonkey.net/
// @version      0.1.3
// @description  count the number of absents at the top of the Reported As column
// @author       allan.caughey@ocdsb.ca
// @match        https://webapps.ocdsb.ca/twebschool/TWEBATT*
// @require http://code.jquery.com/jquery-3.3.1.min.js
// @grant        none
// @license MIT
// ==/UserScript==

(function () {
  'use strict';
  var $ = window.jQuery;

  function getAbsents() {
    var absent = 0,
      late = 0,
      total = $('input[title="Mark as Absent"]').length
    $('input[title="Mark as Absent"]').each(function (a, b) {
      if ($(b).hasClass('buttonRegularActive')) absent++
      else if ($(b).siblings('span').text().trim() !== "") late++
      //if($(b).siblings('span').text().trim()!="") console.log('*'+$(b).siblings('span').text()+'*')
    })
    $("#abspres").text('Absent: ' + absent + ' / Present: ' + (total - absent))
  }

  $("body *").addClass('noChangeTracking')
  $("th:nth-of-type(5)").attr('id', "abspres")
  //$('#abspres').css('{: ;: ;: ;: ;}')
  $("#abspres").css({
    "width": "100%",
    "text-align": "center",
    "display": "inline-block",
    "color": "#bb0000"
  });

  getAbsents()
  $('input[title="Mark as Absent"]').unbind('change').click(function () {
    getAbsents()
  })
})();