import { EventEmitter, OnDestroy, OnInit } from '@angular/core';
import { FormBuilder, FormGroup } from '@angular/forms';
import moment from 'moment';
import { DatePickerInterval } from './datepicker.model';
import * as i0 from "@angular/core";
export declare class DatepickerIntervalComponent implements OnInit, OnDestroy {
    private _fb;
    durationOptions: string[];
    duration: string;
    increment: number;
    text: moment.Moment;
    dateLabel: string;
    _dueDatestring: string;
    private value$;
    form: FormGroup;
    selectedDate: Date;
    selectedInterval: DatePickerInterval;
    update: EventEmitter<DatePickerInterval & {
        date: Date;
    }>;
    cancel: EventEmitter<void>;
    constructor(_fb: FormBuilder);
    ngOnInit(): void;
    ngOnDestroy(): void;
    onValueChanges(): void;
    /** on cancel of interval form */
    onCancel(): void;
    onSelectoptions(numberValue: number, durationValue: string): void;
    /** on submission of interval form */
    onChoose($event: SubmitEvent): void;
    /** normalise duration string */
    normaliseDurationString(duration: string, output?: 'singular' | 'plural' | 'optional'): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<DatepickerIntervalComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<DatepickerIntervalComponent, "hxa-datepicker-interval", never, { "selectedDate": "selectedDate"; "selectedInterval": "selectedInterval"; }, { "update": "update"; "cancel": "cancel"; }, never, never>;
}