import type { UserConfig } from 'vite';
import type { Middleware } from './lib/middleware/types.js';
export type { Middleware };
export interface Config {
    /**
     * The base path for serve HTTP.
     * Defaults to  "/".
     * TODO https://github.com/wakujs/waku/issues/698
     */
    basePath?: string;
    /**
     * The source directory relative to root.
     * Defaults to  "src".
     */
    srcDir?: string;
    /**
     * The dist directory relative to root.
     * This will be the folder to contain the built files.
     * Defaults to  "dist".
     */
    distDir?: string;
    /**
     * The pages directory relative to srcDir.
     * Defaults to "pages".
     */
    pagesDir?: string;
    /**
     * The api directory inside pagesDir.
     * Defaults to "api".
     */
    apiDir?: string;
    /**
     * The private directory relative to root.
     * This folder will contain files that should be read only on the server.
     * Defaults to  "private".
     */
    privateDir?: string;
    /**
     * Bse path for HTTP requests to indicate RSC requests.
     * Defaults to "RSC".
     */
    rscBase?: string;
    /**
     * Middleware to use
     * Defaults to:
     * () => [
     *   import('waku/middleware/context'),
     *   import('waku/middleware/dev-server'),
     *   import('waku/middleware/handler'),
     * ]
     */
    middleware?: () => Promise<{
        default: Middleware;
    }>[];
    /**
     * Enhancer for Hono
     * Defaults to `undefined`
     */
    unstable_honoEnhancer?: (<Hono>(createApp: (app: Hono) => Hono) => (app: Hono) => Hono) | undefined;
    /**
     * Vite configuration options.
     * `common` can contains shared configs that are shallowly merged with other configs.
     * Defaults to `undefined` if not provided.
     */
    unstable_viteConfigs?: {
        common?: () => UserConfig;
        'dev-main'?: () => UserConfig;
        'dev-rsc'?: () => UserConfig;
        'build-analyze'?: () => UserConfig;
        'build-server'?: () => UserConfig;
        'build-ssr'?: () => UserConfig;
        'build-client'?: () => UserConfig;
    } | undefined;
}
export declare function defineConfig(config: Config): Config;