import { Observable, Subject } from 'rxjs';
import { IDay, IDayDate, IRange, IRangeDayIds, IRangeItem } from '../models/interfaces';
import * as i0 from "@angular/core";
/** Basic service for dates */
export declare abstract class DateService {
    /** Dates of days (linear structure, each day has its own Date object) */
    protected readonly dayDates: IDayDate[];
    protected selectedDay: IDay | null;
    /** Range Change Subscription */
    protected readonly rangeChanged$: Subject<IRange | IRangeItem>;
    /** Range Change Subscription (public) */
    readonly rangeChangedObs$: Observable<IRange | IRangeItem>;
    /** Change Subscription */
    protected readonly changed$: Subject<IRange | IRangeItem | null>;
    /** Change Subscription (public) */
    readonly changedObs$: Observable<IRange | IRangeItem | null>;
    /** Subscription to change selected days */
    protected readonly dayIdsChanged$: Subject<IRangeDayIds | string>;
    /** Subscription to change selected days (public) */
    readonly dayIdsChangedObs$: Observable<IRangeDayIds | string>;
    protected abstract selectDay(day: IDay): void;
    protected abstract selectRange(secondDay: IDay): void;
    abstract selectDate(day: IDay): void;
    /** Getting Ids of days in the middle of a range */
    protected getInRangeDayIds(startDayId: string, endDayId: string): string[];
    protected getRangeItem(day: IDay): IRangeItem;
    static ɵfac: i0.ɵɵFactoryDeclaration<DateService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DateService>;
}