import type { Static } from '@sinclair/typebox';
import type { EventAttributes, TrackAttributes, Detail, Point } from '../types/types.js';
/**
 * Helper functions for generating CoT data
 * @class
 */
export default class Util {
    /**
     * Return an event._attributes object with as many defaults as possible
     *
     * @param type      CoT Type
     * @param how       CoT how
     * @param time      Time of CoT Message - if omitted, current time is used
     * @param start     Start Time of CoT - if omitted, current time is used
     * @param stale     Expiration of CoT - if null now+20s is used. Alternative an integer representing the ms offset
     */
    static cot_event_attr(type: string, how: string, time?: Date | string | null, start?: Date | string | null, stale?: Date | string | number | null): Static<typeof EventAttributes>;
    /**
     * Return an event.detail object with as many defaults as possible
     *
     * @param [callsign=UNKNOWN] Display Callsign
     */
    static cot_event_detail(callsign?: string): Static<typeof Detail>;
    /**
     * Return a track object with as many defaults as possible
     *
     * @param [course] Speed in degrees from north
     * @param [speed=0] Speed in m/s
     */
    static cot_track_attr(course?: number, speed?: number, slope?: number): Static<typeof TrackAttributes>;
    /**
     * Generate a random UUID
     */
    static cot_uuid(): string;
    /**
     * Return the current version number this library supports
     */
    static cot_version(): string;
    /**
     * Generate Null Island CoT point object
     */
    static cot_point(): Static<typeof Point>;
    /**
     * Generate CoT date objects
     *
     * cot_date() - Time: now, Start: now, Stale: now + 20s
     *
     * @param time      Time of CoT Message - if omitted, current time is used
     * @param start     Start Time of CoT - if omitted, current time is used
     * @param stale     Expiration of CoT - if null now+20s is used. Alternative an integer representing the ms offset
     */
    static cot_date(time?: Date | string | null, start?: Date | string | null, stale?: Date | string | number | null): {
        time: string;
        start: string;
        stale: string;
    };
}