// From: https://github.com/icholy/Duration.js/pull/15
// Once the above is merged, use the inbuilt module types
declare module 'duration-js' {
	type DurationLike = Duration | string | number;
	type DateLike = Date | number;

	class Duration {
		private _milliseconds: number;

		constructor(value?: DurationLike);

		static millisecond: Duration;
		static second: Duration;
		static minute: Duration;
		static hour: Duration;
		static day: Duration;
		static week: Duration;

		static milliseconds(milliseconds: number): Duration;
		static seconds(seconds: number): Duration;
		static minutes(minutes: number): Duration;
		static hours(hours: number): Duration;
		static days(days: number): Duration;
		static weeks(weeks: number): Duration;

		nanoseconds(): number;
		microseconds(): number;
		milliseconds(): number;
		seconds(): number;
		minutes(): number;
		hours(): number;
		days(): number;
		weeks(): number;

		toString(): string;
		valueOf(): number;

		isGreaterThan(duration: DurationLike): boolean;
		isLessThan(duration: DurationLike): boolean;
		isEqualTo(duration: DurationLike): boolean;

		roundTo(duration: DurationLike): void;

		after(date: DateLike): Date;

		static since(date: DateLike): Duration;
		static until(date: DateLike): Duration;
		static between(a: DateLike, b: DateLike): Duration;
		static parse(duration: string): Duration;
		static fromMicroseconds(us: number): Duration;
		static fromNanoseconds(ns: number): Duration;

		static add(a: Duration, b: Duration): Duration;
		static subtract(a: Duration, b: Duration): Duration;
		static multiply(a: Duration, b: number): Duration;
		static multiply(a: number, b: Duration): Duration;
		static divide(a: Duration, b: Duration): number;
		static abs(d: DurationLike): Duration;
	}
	export = Duration;
}