import moment from 'moment';

declare module 'moment' {
    interface Moment {
        isHoliday(): boolean;
        isBusinessDay(): boolean;

        businessDaysIntoMonth(): number;

        businessDiff(param: Moment): number;
        businessAdd(param: number, period?: unitOfTime.Base): Moment;
        businessSubtract(param: number, period?: unitOfTime.Base): Moment;

        nextBusinessDay(): Moment;
        prevBusinessDay(): Moment;

        monthBusinessDays(partialEndDate?: Moment): Moment[];
        monthNaturalDays(fromToday?: boolean): Moment[];
        monthBusinessWeeks(fromToday?: boolean): Moment[][];
        monthNaturalWeeks(fromToday?: boolean): Moment[][];
        businessWeeksBetween(endDate: Moment): Moment[][];
    }

    interface LocaleSpecification {
        holidays?: string[];
        holidayFormat?: string;
        nextBusinessDayLimit?: number;
        prevBusinessDayLimit?: number;
        workingWeekdays?: number[];
    }
}

export = moment;