import { HoistService, InitContext } from '@xh/hoist/core';
import { Timer } from '@xh/hoist/utils/async';
/**
 * Developer/Admin focused service to provide additional processing and stats related to the
 * running application, specifically its current HoistModel, HoistService, Store, Cube, and cube
 * View instances.
 *
 * Activating this service will cause it to maintain an observable array of summary data synced
 * (with a minimal throttle) on each change to the Hoist registry, as well as an array of model
 * count / memory usage stats, also updated on model changes and periodically in the background.
 *
 * When running in a Desktop application, activating this service will trigger the display of the
 * Hoist Inspector UI - {@link inspectorPanel}. A built-in control to activate/deactivate this
 * service is provided within the Desktop versionBar component.
 *
 * This service may be completely disabled via an optional `xhInspectorConfig` appConfig, although
 * note that this config does *not* disable the backing registry within XH. Access to Inspector can
 * also be limited to users with a particular app role, using the same config.
 */
export declare class InspectorService extends HoistService {
    xhImpl: boolean;
    static instance: InspectorService;
    persistWith: {
        localStorageKey: string;
    };
    /**
     * True if Inspector is generally enabled via config.
     * If enabled but !active, this service won't do any work, but can be activated on demand.
     */
    get enabled(): boolean;
    /** True to start processing model stats and show the Inspector UI. */
    active: boolean;
    /** Info on current services/models/stores (when active). */
    activeInstances: InspectorInstanceData[];
    /** Timestamped model counts w/memory usage (when active). */
    stats: InspectorStat[];
    statsUpdateTimer: Timer;
    private _syncRun;
    private _idToSyncRun;
    constructor();
    initAsync(ctx: InitContext): Promise<void>;
    toggleActive(): void;
    activate(): void;
    deactivate(): void;
    updateStats(): void;
    clearStats(): void;
    restoreDefaultsAsync(): Promise<void>;
    private sync;
    setActiveInstances(ai: InspectorInstanceData[]): void;
    _prevModelCount: number;
    get conf(): any;
}
interface InspectorInstanceData {
    className: string;
    created: number;
    isHoistModel: boolean;
    isHoistService: boolean;
    isStore: boolean;
    isCube: boolean;
    isView: boolean;
    isLinked: boolean;
    isXhImpl: boolean;
    hasLoadSupport: boolean;
    lastLoadCompleted: Date;
    lastLoadException: any;
    syncRun: number;
}
interface InspectorStat {
    id: number;
    timestamp: number;
    modelCount: number;
    modelCountChange: number;
    totalJSHeapSize: number;
    usedJSHeapSize: number;
    jsHeapSizeLimit: number;
    syncRun: number;
}
export {};