import origMoment from 'moment';
import { extendMoment } from 'moment-range';

export const moment = extendMoment(origMoment);

export const CUSTOM_RANGE = 'CUSTOM_RANGE';

const DATE_RANGE_LABELS = {
  LAST_30_MINUTES: '30 Minutes',
  TODAY: 'Today',
  YESTERDAY: 'Yesterday',
  LAST_7_DAYS: 'Past 7 Days',
  LAST_30_DAYS: 'Past 30 Days',
  //THIS_MONTH: 'This Month',
  //LAST_MONTH: 'Previous Month',
  //THIS_YEAR: 'This Year',
  [ CUSTOM_RANGE ]: 'Custom Range',
};

const DATE_RANGE_VALUES = {};
Object.keys(DATE_RANGE_LABELS).forEach((key) => { DATE_RANGE_VALUES[ key ] = key; });

export { DATE_RANGE_VALUES };
export const dateRangeValues = Object.keys(DATE_RANGE_VALUES);

export function getDateRangeFromTs(start, end) {
  return moment.range(
    moment(start),
    moment(end),
  );
}

export function getDateRangeLabel(value) {
  return DATE_RANGE_LABELS[ value ];
}

export function getDateRangeFromValue(value) {
  switch (value) {
    case DATE_RANGE_VALUES.LAST_30_MINUTES:
      return moment.range(
        moment().startOf('hour').subtract(30, 'minutes'),
    		moment().startOf('hour'),
      );  
    case DATE_RANGE_VALUES.TODAY:
      return moment.range(
        moment().startOf('day'),
        moment().endOf('day'),
      );
    case DATE_RANGE_VALUES.YESTERDAY:
      return moment.range(
        moment().subtract(1, 'days').startOf('day'),
        moment().subtract(1, 'days').endOf('day'),
      );
    case DATE_RANGE_VALUES.LAST_7_DAYS:
      return moment.range(
        moment().subtract(7, 'days').startOf('day'),
        moment().endOf('day'),
      );
    case DATE_RANGE_VALUES.LAST_30_DAYS:
      return moment.range(
        moment().subtract(30, 'days').startOf('day'),
        moment().endOf('day'),
      );
    case DATE_RANGE_VALUES.THIS_MONTH:
      return moment().range('month');
    case DATE_RANGE_VALUES.LAST_MONTH:
      return moment().subtract(1, 'months').range('month');
    case DATE_RANGE_VALUES.THIS_YEAR:
      return moment().range('year');
    case DATE_RANGE_VALUES.CUSTOM_RANGE:
      return moment.range(
        moment(),
        moment(),
      );
  }
  return null;
}

/**
 * Check if the given date is today/yesterday else return in specified format.
 * @param {Date} date Date to be cheked.
 * @param {String} format Returning date format.
 * @return {String} Formated date string.
 */
export const checkForRecent = (date, format) => {
  const d = new Date();
  // Today
  if (date.hasSame(d, 'day')) return 'Today';

  // Yesterday
  if (date.hasSame(d.setDate(d.getDate() - 1), 'day')) return 'Yesterday';

  // Formatted
  return date.toFormat(format);
};