import { ChangeDetectorRef, OnDestroy, TemplateRef, ViewContainerRef } from '@angular/core';
import { NgxAuthenticationAbstractService } from '../../abstracts';
import * as i0 from "@angular/core";
/**
 * A directive that will render a part of the template based on whether the required feature(s) are provided.
 *
 * Based upon `*ngIf`. See https://github.com/angular/angular/blob/master/packages/common/src/directives/ng_if.ts
 */
export declare class NgxHasFeatureDirective<FeatureType extends string> implements OnDestroy {
    templateRef: TemplateRef<any>;
    private viewContainer;
    private readonly authenticationService;
    private readonly cdRef;
    /**
     * The destroyed state of the directive
     */
    private destroyed$;
    /**
     * The needed templateRefs
     */
    private thenTemplateRef;
    private thenViewRef;
    private elseTemplateRef;
    private elseViewRef;
    /**
     * The (list of) feature(s) we need to check
     */
    private feature;
    /**
     * Whether the feature should be enabled
     */
    private shouldHaveFeature;
    /**
     * Whether all features should be enabled
     */
    private shouldHaveAllFeatures;
    /**
     * A feature or list of features the item should have
     */
    set ngxHasFeature(feature: FeatureType | FeatureType[]);
    /**
     * The else template in case the feature is not enabled
     */
    set ngxHasFeatureElse(ngTemplate: TemplateRef<any>);
    /**
     * Whether the feature should be enabled, by default this is true
     */
    set ngxHasFeatureShouldHaveFeature(shouldHaveFeatureEnabled: boolean);
    /**
     * Whether all features should be enabled, by default this is true
     */
    set ngxHasFeatureShouldHaveAllFeatures(shouldHaveAllFeatures: boolean);
    constructor(templateRef: TemplateRef<any>, viewContainer: ViewContainerRef, authenticationService: NgxAuthenticationAbstractService, cdRef: ChangeDetectorRef);
    ngOnDestroy(): void;
    /**
     * Updates the view and hides/renders the template as needed
     */
    private updateView;
    /**
     * Dispose the current subscription
     */
    private dispose;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxHasFeatureDirective<any>, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<NgxHasFeatureDirective<any>, "[ngxHasFeature]", never, { "ngxHasFeature": { "alias": "ngxHasFeature"; "required": false; }; "ngxHasFeatureElse": { "alias": "ngxHasFeatureElse"; "required": false; }; "ngxHasFeatureShouldHaveFeature": { "alias": "ngxHasFeatureShouldHaveFeature"; "required": false; }; "ngxHasFeatureShouldHaveAllFeatures": { "alias": "ngxHasFeatureShouldHaveAllFeatures"; "required": false; }; }, {}, never, never, true, never>;
}