import { OnDestroy } from '@angular/core';
import { UserService } from '../../user/services/user.service';
import { CaseResourceService } from '../../resources/engine-endpoint/case-resource.service';
import { Case } from '../../resources/interface/case';
import { BehaviorSubject, Observable } from 'rxjs';
import * as i0 from "@angular/core";
/**
 * This service allows access to information about the groups of the currently logged user.
 *
 * If no user is logged an empty array is provided.
 *
 * If a user can be owner of at most one group, this service provides utility methods to access this group directly.
 *
 * The groups are assumed to be instances of the engine group process, this is never checked nor enforced.
 */
export declare class NextGroupService implements OnDestroy {
    protected _userService: UserService;
    protected _caseResourceService: CaseResourceService;
    protected _memberGroups$: BehaviorSubject<Array<Case>>;
    protected _ownerGroups$: BehaviorSubject<Array<Case>>;
    private _userSub;
    constructor(_userService: UserService, _caseResourceService: CaseResourceService);
    ngOnDestroy(): void;
    /**
     * @returns an Observable of all the groups the currently logged user is a member of
     */
    get memberGroups$(): Observable<Array<Case>>;
    /**
     * @returns an Observable of all the groups the currently logged user is an owner of
     */
    get ownerGroups$(): Observable<Array<Case>>;
    /**
     * @returns an Array of all the groups the currently logged user is a member of
     */
    get memberGroups(): Array<Case>;
    /**
     * @returns an Array of all the groups the currently logged user is an owner of
     */
    get ownerGroups(): Array<Case>;
    /**
     * @returns an Observable containing the first element of the [ownerGroups$]{@link NextGroupService#ownerGroups$} observable,
     * or `undefined` if the contained array is empty
     */
    get firstOwnerGroup$(): Observable<Case | undefined>;
    /**
     * @returns the first element of the [ownerGroups]{@link NextGroupService#ownerGroups} array, or `undefined` if the array is empty
     */
    get firstOwnerGroup(): Case | undefined;
    /**
     * @deprecated in NAE 5.6.0 - use [ownerGroups]{@link NextGroupService#ownerGroups} instead
     */
    get groupOfUser(): Array<Case>;
    static ɵfac: i0.ɵɵFactoryDeclaration<NextGroupService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NextGroupService>;
}