import type { ProxyRuntimeConfigListener, ProxyRuntimeConfigReloadListener, ProxyRuntimeConfigReloadResult, ProxyRuntimeConfigReloadSource, ProxyRuntimeConfigSnapshot, ProxyRuntimeConfigStatus, ProxyRuntimeConfigStoreOptions } from "../types/index.js";
/** Atomic last-known-good runtime configuration with file-triggered reloads. */
export declare class ProxyRuntimeConfigStore {
    private readonly options;
    private currentSnapshot;
    private status;
    private readonly listeners;
    private readonly reloadListeners;
    private reloadQueue;
    private reloadTimer;
    private configFileObserved;
    private envFileObserved;
    private currentEnvFileHash;
    private readonly watchListener;
    private constructor();
    static create(options: ProxyRuntimeConfigStoreOptions): Promise<ProxyRuntimeConfigStore>;
    getSnapshot(): ProxyRuntimeConfigSnapshot;
    getStatus(): ProxyRuntimeConfigStatus;
    subscribe(listener: ProxyRuntimeConfigListener): () => void;
    subscribeReload(listener: ProxyRuntimeConfigReloadListener): () => void;
    reload(source?: ProxyRuntimeConfigReloadSource): Promise<ProxyRuntimeConfigReloadResult>;
    startWatching(): void;
    stopWatching(): void;
    private scheduleWatchReload;
    private performReload;
    private notifyReloadListeners;
}