import { HoistService, InitContext } from '@xh/hoist/core';
/**
 * Load and report on the client and server environment, including software versions, timezones, and
 * other technical information.
 */
export declare class EnvironmentService extends HoistService {
    telemetryPrefix: string;
    static instance: EnvironmentService;
    /**
     * Version of this application currently running on the Hoist UI server.
     * Unlike most other EnvironmentService state, this is refreshed on a timer and observable.
     */
    serverVersion: string;
    /**
     * Build of this application currently running on the Hoist UI server.
     * Unlike most other EnvironmentService state, this is refreshed on a timer and observable.
     */
    serverBuild: string;
    /**
     * Instance of Hoist UI server currently delivering content to this client.
     * Unlike most other EnvironmentService state, this is refreshed on a timer and observable.
     */
    serverInstance: string;
    private data;
    private pollConfig;
    private pollTimer;
    initAsync(ctx: InitContext): Promise<void>;
    get(key: string): any;
    get appEnvironment(): AppEnvironment;
    isProduction(): boolean;
    isTest(): boolean;
    /**
     * Update critical environment information from the server, including current app version + build,
     * upgrade prompt mode, and alert banner.
     *
     * @internal - not for app use. Called by `pollTimer` and as needed by Hoist code.
     */
    pollServerAsync(): Promise<void>;
    constructor();
    private ensureVersionRunnable;
    private startPolling;
    private setServerInfo;
    private get pollIntervalMs();
}
/**
 * Available application deployment environments, as defined by Hoist Core `AppEnvironment.groovy`.
 *
 * Note that this is distinct from node's `process.env.NODE_ENV`, which will be "production" at
 * runtime on any built/deployed instances of the app, including on Dev/UAT servers.
 */
export type AppEnvironment = 'Production' | 'Beta' | 'Staging' | 'Development' | 'Test' | 'UAT' | 'BCP';