/**
 * App Router — Next.js-style file-based routing
 *
 * Discovers routes from the app directory, renders pages with SSR,
 * builds client mount scripts, and handles API routes.
 */
import type { Handler, FrontendAppOptions, RenderPageOptions, AppRouterOptions } from "./types";
export declare function spa(options: FrontendAppOptions): Promise<string>;
/** @deprecated Use the createAppRouter() pattern instead. */
export declare function frontendApp(options: FrontendAppOptions): Promise<string>;
/**
 * Render a page component to HTML with SSR.
 * Used by app router to render route components.
 */
export declare function renderPage(options: RenderPageOptions): Promise<string>;
/**
 * Create a request handler with file-based routing.
 * Automatically discovers routes from app directory.
 *
 * @example
 * ```ts
 * import { serve, createAppRouter } from 'tradjs/web';
 *
 * serve(createAppRouter({
 *   appDir: './app',
 *   globalCss: './app/globals.css',
 * }));
 * ```
 */
export declare function createAppRouter(options?: AppRouterOptions): Handler;
export declare function resolveAppDir(appDir?: string): string;
export interface ServeAppOptions extends AppRouterOptions {
    port?: number;
    unix?: string;
}
export declare function serve(options?: ServeAppOptions): Promise<any>;
export declare function serve(handler: Handler, options?: {
    port?: number;
    unix?: string;
    websocket?: any;
}): Promise<any>;
/**
 * Start a TradJS server with file-based routing in one call.
 * Combines createAppRouter() + serve() for convenience.
 *
 * @example
 * ```ts
 * import { start } from 'tradjs';
 * await start({ appDir: './app', port: 3000 });
 * ```
 */
export declare function start(options?: ServeAppOptions): Promise<any>;
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