import { ApplicationRef, Injector, ComponentFactoryResolver } from '@angular/core';
import { Observable } from 'rxjs';
import { TourStep, TourConfig, TourState } from '../models/tour-step.model';
import { TourI18nService } from './tour-i18n.service';
import * as i0 from "@angular/core";
export declare class TourService {
    private appRef;
    private injector;
    private componentFactoryResolver;
    private i18nService;
    private tours;
    private currentSteps;
    private currentIndex;
    private currentTourName;
    private tooltipRef;
    private backdropRef;
    private stateSubject;
    state$: Observable<TourState>;
    private defaultConfig;
    private config;
    constructor(appRef: ApplicationRef, injector: Injector, componentFactoryResolver: ComponentFactoryResolver, i18nService: TourI18nService);
    register(name: string, step: TourStep): void;
    unregister(name: string, stepId: string): void;
    configure(config: Partial<TourConfig>): void;
    start(name: string, config?: Partial<TourConfig>): void;
    next(): void;
    previous(): void;
    end(): void;
    private showStep;
    private createBackdrop;
    private createTooltip;
    private cleanup;
    private updateState;
    getTourSteps(name: string): TourStep[];
    hasTour(name: string): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<TourService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<TourService>;
}