import { OnDestroy } from '@angular/core';
import { Router } from '@angular/router';
import { MenuItem } from './menuitem';
import * as i0 from "@angular/core";
export declare class BreadcrumbService implements OnDestroy {
    private _router;
    private _unsubscribe$;
    private _breadcrumb;
    /**
     * Returns an observable containg the necessary data to generate the breadcrumb
     */
    breadcrumb$: import("rxjs").Observable<MenuItem[]>;
    constructor(_router: Router);
    ngOnDestroy(): void;
    private _traceRouteChanges;
    private _generateBreadcrumb;
    getLastBreadcrumb(): string;
    /**
     * Used when the last path of the route is a param [zone / parking lot / 1] => [zone / arrivals]
     * @param meaningfulName often the route param is a number, this field replaces this value
     */
    mergeRouteParam(meaningfulName?: string): void;
    /**
     * Used when the last path of the route is a param [zone / parking lot / 1] => [zone / parking lot / A]
     * @param meaningfulName often the route param is a number, this field replaces this value
     * @param index the index of the route parameter
     */
    renameRouteParam(meaningfulName?: string, index?: number): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<BreadcrumbService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<BreadcrumbService>;
}