Trello add a list for each weekday

trello_add_week.js

// Trello
// Add a List for each weekday

// Pass throught https://skalman.github.io/UglifyJS-online/
// Then add 'javascript:' before the code
// and add 'void(0);' after the code
// Add a bookmark in Chrome and put this as the url

(function () {
  function getLastDate (lastDate = null) {
    if (lastDate) return lastDate;

    const headers = document.getElementsByClassName('list-header-name-assist');
    const lastHeader = headers.length ? headers[headers.length - 1] : null;

    if (lastHeader) {
      const lastHeaderParts = lastHeader.textContent.split(' ')

      const dateRegexp = /^([0-9]{2})-([0-9]{2})-([0-9]{4})$/;

      if (lastHeaderParts.length >= 2 && dateRegexp.test(lastHeaderParts[1])) {
        const [ , day, month, year ] = dateRegexp.exec(lastHeaderParts[1]);
        return new Date(year, month - 1, day);
      }
    }

    return new Date();
  }

  const isWeekend = date => [ 0, 6 ].includes(date.getDay());
  const getNextDay = date => new Date(date.getFullYear(), date.getMonth(), date.getDate() + 1);
  const padZero2 = n => (n + '').padStart(2, 0);

  function addDate (lastDate = null) {
    lastDate = getLastDate(lastDate);
    const date = getNextDay(lastDate);

    if (!isWeekend(date)) {
      const weekdays = [
        'Zondag',
        'Maandag',
        'Dinsdag',
        'Woensdag',
        'Donderdag',
        'Vrijdag',
        'Zaterdag'
      ];

      const input = document.getElementsByClassName('list-name-input')[0];
      input.value = `${weekdays[date.getDay()]} ${padZero2(date.getDate())}-${padZero2(date.getMonth() + 1)}-${date.getFullYear()}`;

      const button = document.getElementsByClassName('mod-list-add-button')[0];
      button.click();
    }

    return date;
  }

  const addWeek = () => {
    let date = null;

    for (let i = 0; i < 7; i++) {
      date = addDate(date);
    }
  }

  addWeek();
})();