import type { Mwn } from './bot';
/**
 * Wrapper around the native JS Date() for ease of
 * handling dates, as well as a constructor that
 * can parse MediaWiki dating formats.
 */
export interface MwnDate extends Date {
    isValid(): boolean;
    isBefore(date: Date | MwnDate): boolean;
    isAfter(date: Date | MwnDate): boolean;
    getUTCMonthName(): string;
    getUTCMonthNameAbbrev(): string;
    getMonthName(): string;
    getMonthNameAbbrev(): string;
    getUTCDayName(): string;
    getUTCDayNameAbbrev(): string;
    getDayName(): string;
    getDayNameAbbrev(): string;
    /**
     * Add a given number of minutes, hours, days, months or years to the date.
     * This is done in-place. The modified date object is also returned, allowing chaining.
     * @param {number} number - should be an integer
     * @param {string} unit
     * @throws {Error} if invalid or unsupported unit is given
     * @returns {MwnDate}
     */
    add(number: number, unit: timeUnit): MwnDate;
    /**
     * Subtracts a given number of minutes, hours, days, months or years to the date.
     * This is done in-place. The modified date object is also returned, allowing chaining.
     * @param {number} number - should be an integer
     * @param {string} unit
     * @throws {Error} if invalid or unsupported unit is given
     * @returns {MwnDate}
     */
    subtract(number: number, unit: timeUnit): MwnDate;
    /**
     * Formats the date into a string per the given format string.
     * Replacement syntax is a subset of that in moment.js:
     *
     * | Syntax | Output |
     * |--------|--------|
     * | H | Hours (24-hour) |
     * | HH | Hours (24-hour, padded to 2 digits) |
     * | h | Hours (12-hour) |
     * | hh | Hours (12-hour, padded to 2 digits) |
     * | A | AM or PM |
     * | m | Minutes |
     * | mm | Minutes (padded to 2 digits) |
     * | s | Seconds |
     * | ss | Seconds (padded to 2 digits) |
     * | d | Day number of the week (Sun=0) |
     * | ddd | Abbreviated day name |
     * | dddd | Full day name |
     * | D | Date |
     * | DD | Date (padded to 2 digits) |
     * | M | Month number (1-indexed) |
     * | MM | Month number (1-indexed, padded to 2 digits) |
     * | MMM | Abbreviated month name |
     * | MMMM | Full month name |
     * | Y | Year |
     * | YY | Final two digits of year (20 for 2020, 42 for 1942) |
     * | YYYY | Year (same as `Y`) |
     *
     * @param {string} formatstr
     * @param {(string|number)} [zone=utc] - 'system' (for system-default time zone),
     * 'utc' (for UTC), or specify a time zone as number of minutes past UTC.
     * @returns {string}
     */
    format(formatstr: string, zone?: number | 'utc' | 'system'): string;
    /**
     * Gives a readable relative time string such as "Yesterday at 6:43 PM" or "Last Thursday at 11:45 AM".
     * Similar to calendar in moment.js, but with time zone support.
     * @param {(string|number)} [zone=system] - 'system' (for browser-default time zone),
     * 'utc' (for UTC), or specify a time zone as number of minutes past UTC
     * @returns {string}
     */
    calendar(zone?: number | 'utc' | 'system'): string;
}
export interface MwnDateStatic {
    /**
     * Create a date object. MediaWiki timestamp format is also acceptable,
     * in addition to everything that JS Date() accepts.
     */
    new (...args: any[]): MwnDate;
    /**
     * Get month name from month number (1-indexed)
     */
    getMonthName(monthNum: number): string;
    /**
     * Get abbreviated month name from month number (1-indexed)
     */
    getMonthNameAbbrev(monthNum: number): string;
    /**
     * Get day name from day number (1-indexed, starting from Sunday)
     */
    getDayName(dayNum: number): string;
    /**
     * Get abbreviated day name from day number (1-indexed, starting from Sunday)
     */
    getDayNameAbbrev(dayNum: number): string;
    localeData: any;
    /**
     * Customize language used for day and month names. This fetches
     * the data from MediaWiki API. By default, it is English.
     * @param lang - Defaults to the content language of the wiki the bot
     * is logged into.
     */
    populateLocaleData(lang?: string): Promise<void>;
}
export default function (bot: Mwn): MwnDateStatic;
declare const unitMap: {
    seconds: string;
    minutes: string;
    hours: string;
    days: string;
    months: string;
    years: string;
};
export type timeUnit = keyof typeof unitMap | 'second' | 'minute' | 'hour' | 'day' | 'month' | 'year';
export {};