import { Hono } from "hono";
/**
 * Configuration for serving a Single Page Application
 */
export interface ServeSPAConfig {
    /**
     * Absolute path to the frontend build directory
     * @example path.join(__dirname, "../../frontend/dist")
     */
    frontendPath: string;
    /**
     * Base path for API routes (default: "/api")
     * Requests to this path will be passed through to API handlers
     */
    apiBasePath?: string;
    /**
     * Additional paths to exclude from SPA handling
     * These paths will be passed through to other handlers
     * @example ["/health", "/ws", "/metrics"]
     */
    excludePaths?: string[];
    /**
     * Index file to serve for SPA routes (default: "index.html")
     */
    indexFile?: string;
}
/**
 * Serve a Single Page Application from an Hono app.
 *
 * @internal Not part of the stable public API. Exported only because the
 * official app template (`packages/cli/templates/template/backend/src/index.ts`
 * and `app/backend/src/index.ts`) calls it to serve the built frontend in
 * production. Its request-handling behavior is an implementation detail and
 * may change without a major version bump.
 */
export declare function serveSPA<E extends import("hono").Env>(app: Hono<E>, config: ServeSPAConfig): void;