import { OnDestroy, OnInit } from '@angular/core';
import { NestedTreeControl } from '@angular/cdk/tree';
import { ConfigurationService } from '../../configuration/configuration.service';
import { View, Views } from '../../../commons/schema';
import { Router } from '@angular/router';
import { MatTreeNestedDataSource } from '@angular/material/tree';
import { ReplaySubject } from 'rxjs';
import { LoggerService } from '../../logger/services/logger.service';
import { UserService } from '../../user/services/user.service';
import { AbstractNavigationResizableDrawerComponent } from '../navigation-drawer/abstract-navigation-resizable-drawer.component';
import { ActiveGroupService } from '../../groups/services/active-group.service';
import { TaskResourceService } from '../../resources/engine-endpoint/task-resource.service';
import { LanguageService } from '../../translate/language.service';
import { DynamicNavigationRouteProviderService } from '../../routing/dynamic-navigation-route-provider/dynamic-navigation-route-provider.service';
import { AccessService } from "../../authorization/permission/access.service";
import * as i0 from "@angular/core";
export interface NavigationNode {
    name: string;
    icon?: string;
    url: string;
    children?: Array<NavigationNode>;
    level?: number;
    translate?: boolean;
}
export declare abstract class AbstractNavigationTreeComponent extends AbstractNavigationResizableDrawerComponent implements OnInit, OnDestroy {
    protected _config: ConfigurationService;
    protected _router: Router;
    protected _log: LoggerService;
    protected _userService: UserService;
    protected _accessService: AccessService;
    protected _activeGroupService: ActiveGroupService;
    protected _taskResourceService: TaskResourceService;
    protected _languageService: LanguageService;
    protected _navigationRouteProvider: DynamicNavigationRouteProviderService;
    viewPath: string;
    parentUrl: string;
    routerChange: boolean;
    protected _reloadNavigation: ReplaySubject<void>;
    private _subscriptions;
    private _subGroupResolution;
    private _subLangChange;
    treeControl: NestedTreeControl<NavigationNode>;
    dataSource: MatTreeNestedDataSource<NavigationNode>;
    protected constructor(_config: ConfigurationService, _router: Router, _log: LoggerService, _userService: UserService, _accessService: AccessService, _activeGroupService: ActiveGroupService, _taskResourceService: TaskResourceService, _languageService: LanguageService, _navigationRouteProvider: DynamicNavigationRouteProviderService);
    ngOnInit(): void;
    ngOnDestroy(): void;
    hasChild(_: number, node: NavigationNode): boolean;
    protected resolveNavigation(): void;
    protected resolveNavigationNodesWithOffsetRoot(): Array<NavigationNode>;
    /**
     * Converts the provided {@link Views} object into the corresponding navigation tree
     * @param views navigation configuration
     * @param parentUrl URL of the parent navigation tree node
     * @param ancestorNodeContainer if the parent node has no navigation this attribute contains the
     * closest ancestor that has navigation
     * @protected
     */
    protected resolveNavigationNodes(views: Views, parentUrl: string, ancestorNodeContainer?: Array<NavigationNode>): Array<NavigationNode>;
    protected hasNavigation(route: View): boolean;
    protected hasSubRoutes(route: View): boolean;
    protected buildNode(view: View, routeSegment: string, parentUrl: string): NavigationNode;
    protected getNodeName(view: View, routeSegment: string): string;
    protected getNodeIcon(view: View): string;
    /**
     * @param view configuration of some view, whose routeSegment we want to determine
     * @returns the routeSegment for the provided view, or undefined if none is specified
     */
    protected getNodeRouteSegment(view: View): string;
    protected getNodeTranslateFlag(view: View): boolean;
    /**
     * Appends the route segment to the parent URL.
     * @param parentUrl URL of the parent. Should not end with '/'
     * @param routeSegment URL segment of the child
     * @returns `parentUrl/routeSegment` if the `routeSegment` is truthy (not an empty string).
     * Returns `parentUrl` if `routeSegment` is falsy (empty string).
     */
    protected appendRouteSegment(parentUrl: string, routeSegment: string): string;
    protected resolveLevels(nodes: Array<NavigationNode>, parentLevel?: number): void;
    protected resolveChange(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<AbstractNavigationTreeComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<AbstractNavigationTreeComponent, "ncc-abstract-navigation-tree", never, { "viewPath": { "alias": "viewPath"; "required": false; }; "parentUrl": { "alias": "parentUrl"; "required": false; }; "routerChange": { "alias": "routerChange"; "required": false; }; }, {}, never, never, false, never>;
}