/**
 * @echelon-framework/mock-server — standalone Node mock backend z HTTP + WebSocket.
 *
 * HTTP:
 *  - GET  /health              → "ok"
 *  - GET  /api/:resource       → zwraca fixture z config.responses[resource]
 *                                 • gdy fixture to tablica → obsługuje query params:
 *                                   - `?q=text`          — full-text filter (każde pole, case-insensitive)
 *                                   - `?field=value`     — per-field contains filter (AND między polami)
 *                                   - `?_page=N&_pageSize=K` — paginacja slice'owa
 *                                   - `?_sort=field&_order=asc|desc` — sortowanie po polu
 *  - POST /api/:resource       → echo + dopisuje do in-memory journal
 *
 * WebSocket (ws://host:port/ws):
 *  - Client wysyła `{ subscribe: "channel.name" }` → dostaje strumień wiadomości
 *  - Client wysyła `{ unsubscribe: "channel.name" }` → przestaje dostawać
 *  - Server emituje wiadomości typu `{ channel, data, at }` dla każdego subskrybowanego kanału
 *
 * Symulatory emisji — te same `StreamSimulator` kind'y co w @echelon-framework/transport-mock
 * (fx-random-walk, sine, random-int). Deklarowane w configu.
 */
export interface StreamSimulator {
    readonly kind: string;
    readonly intervalMs?: number;
    readonly mid?: number;
    readonly vol?: number;
    readonly bounds?: readonly [number, number];
    readonly jumpProbability?: number;
    readonly meanReversionTarget?: number;
    readonly precision?: number;
    readonly amplitude?: number;
    readonly periodMs?: number;
    readonly offset?: number;
    readonly min?: number;
    readonly max?: number;
}
export interface MockServerConfig {
    readonly port?: number;
    readonly host?: string;
    /** HTTP responses dla GET /api/:resource */
    readonly responses?: Readonly<Record<string, unknown>>;
    /** WS streams emitted on subscribe */
    readonly streams?: Readonly<Record<string, {
        readonly simulate: StreamSimulator;
    }>>;
    /** Opcjonalny logger (default: console). */
    readonly log?: (level: 'info' | 'warn' | 'error', msg: string, ctx?: unknown) => void;
}
export declare class MockServer {
    private readonly config;
    private httpServer?;
    private wsServer?;
    private simulatorTimers;
    private simulatorState;
    private subscriptions;
    constructor(config: MockServerConfig);
    start(): Promise<{
        port: number;
        host: string;
    }>;
    stop(): Promise<void>;
    private broadcast;
    private startSimulator;
}
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