packages/issue-dashboard-widgets/widgets/due-dates-calendar/app/custom-localizer.js

import {DateLocalizer} from 'react-big-calendar';
import {eq} from 'date-arithmetic';

/* eslint func-style: 0 */
/* eslint no-var: 0 */
/* eslint one-var: 0 */
/* eslint prefer-template: 0 */

var dateRangeFormat$1 = function dateRangeFormat(_ref, culture, local) {
  var start = _ref.start,
    end = _ref.end;
  return local.format(start, 'L', culture) + ' – ' + local.format(end, 'L', culture);
};

var timeRangeFormat = function timeRangeFormat(_ref2, culture, local) {
  var start = _ref2.start,
    end = _ref2.end;
  return local.format(start, 'LT', culture) + ' – ' + local.format(end, 'LT', culture);
};

var timeRangeStartFormat =
  function timeRangeStartFormat(_ref3, culture, local) {
    var start = _ref3.start;
    return local.format(start, 'LT', culture) + ' – ';
  };

var timeRangeEndFormat = function timeRangeEndFormat(_ref4, culture, local) {
  var end = _ref4.end;
  return ' – ' + local.format(end, 'LT', culture);
};


var weekRangeFormat = function weekRangeFormat(_ref5, culture, local) {
  var start = _ref5.start,
    end = _ref5.end;
  return local.format(start, 'MMMM DD', culture) + ' – ' + local.format(end, eq(start, end, 'month') ? 'DD' : 'MMMM DD', culture);
};

var formats = {
  dateFormat: 'DD',
  dayFormat: 'DD ddd',
  weekdayFormat: 'ddd',
  selectRangeFormat: timeRangeFormat,
  eventTimeRangeFormat: timeRangeFormat,
  eventTimeRangeStartFormat: timeRangeStartFormat,
  eventTimeRangeEndFormat: timeRangeEndFormat,
  timeGutterFormat: 'LT',
  monthHeaderFormat: 'MMMM YYYY',
  dayHeaderFormat: 'dddd MMM DD',
  dayRangeHeaderFormat: weekRangeFormat,
  agendaHeaderFormat: dateRangeFormat$1,
  agendaDateFormat: 'ddd MMM DD',
  agendaTimeFormat: 'LT',
  agendaTimeRangeFormat: timeRangeFormat
};

function customMoment(moment) {
  var locale = function locale(m, c) {
    return c ? m.locale(c) : m;
  };

  return new DateLocalizer({
    formats,
    firstOfWeek: function firstOfWeek() {
      const data = moment.localeData();
      return data ? data.firstDayOfWeek() : 0;
    },
    format: function format(value, _format, culture) {
      return locale(moment(value), culture).format(_format);
    }
  });
}

export default customMoment;