import { KeycloakService } from 'keycloak-angular';
import { NGXLogger } from 'ngx-logger';
import { Observable } from 'rxjs';
import { PermissionContext, PermissionRequest } from '../models';
import { PermissionApiService } from './permission-api.service';
import * as i0 from "@angular/core";
export declare class PermissionService {
    private readonly keyCloakService;
    private readonly logger;
    private readonly permissionApiService;
    private readonly QUEUE_COLLECTION_PERIOD_MS;
    private _cachedResolvedPermissions;
    private _pendingPermissions;
    private _permissionRequestsByKey;
    private _permissionRequestQueue;
    private _permissionQueueSubscription;
    private _clearCacheSubscription;
    constructor(keyCloakService: KeycloakService, logger: NGXLogger, permissionApiService: PermissionApiService);
    requestPermission(permissionRequest: PermissionRequest, context?: PermissionContext): Observable<boolean>;
    /**
     * Invalidates cached and in-flight permission results for the provided resource, so that
     * subsequent permission requests are re-evaluated by the backend. Call this after an action
     * that can change the outcome of permission checks (e.g. changing a task assignment).
     *
     * @param resource the resource type to invalidate, e.g.
     * `com.ritense.valtimo.operaton.domain.OperatonTask`
     * @param identifier when provided, only permissions requested with a context for this specific
     * resource instance (or without an instance context) are invalidated; otherwise all permissions
     * for the resource are invalidated
     */
    invalidateResource(resource: string, identifier?: string): void;
    private permissionRequestMatchesResource;
    private queuePermission;
    private openQueueSubscription;
    private cacheResolvedPermissions;
    private openClearCacheSubscription;
    private emptyQueue;
    private clearCache;
    private clearPending;
    private clearPermissionRequests;
    static ɵfac: i0.ɵɵFactoryDeclaration<PermissionService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<PermissionService>;
}