formatDate.ts

import dayjs from "dayjs";
import relativeTime from "dayjs/plugin/relativeTime";
import localizedFormat from "dayjs/plugin/localizedFormat";

import "dayjs/locale/en-gb";

dayjs.locale("en-gb");

dayjs.extend(relativeTime);
dayjs.extend(localizedFormat);

/**
 * Formats date as relative time.
 * @param date Date to format.
 * @param [currentDate] Current date to compared against (for testing).
 * @returns Formatted date as relative time (up to two weeks).
 */
const formatDateRelative = (date: string, currentDate?: string): string => {
  let formattedDate;

  const targetDate = dayjs(date);
  const now = dayjs(currentDate ?? undefined);

  if (now.diff(targetDate, "week") >= 2) {
    formattedDate = targetDate.format("DD/MM/YYYY");
  } else {
    formattedDate = targetDate.from(now);
  }

  return formattedDate;
};

/**
 * Formats date as month name and year.
 * @param date Date to format.
 * @returns Formatted date as long format.
 */
const formatDateMonth = (date: string): string => dayjs(date).format("MMMM YYYY");

export { formatDateRelative, formatDateMonth };