import nodeFs from 'node:fs';
import { type Configuration, type RuleSetRule } from 'webpack';
export type BuildInfoT = {
    key: string;
    publicPath: string;
    timestamp: string;
    useServiceWorker: boolean;
};
export type OptionsT = {
    babelEnv: string;
    babelLoaderExclude?: RuleSetRule['exclude'];
    babelLoaderOptions?: object;
    context: string;
    cssLocalIdent?: string;
    dontEmitBuildInfo?: boolean;
    dontUseProgressPlugin?: boolean;
    entry: string | string[];
    fs?: typeof nodeFs;
    keepBuildInfo?: boolean | BuildInfoT;
    mode: 'development' | 'none' | 'production';
    outputPath?: string;
    publicPath?: string;
    sitemap?: string;
    typescript?: boolean;
    workbox?: boolean | object;
};
/**
 * Creates a new Webpack config object, and performs some auxiliary operations
 * on the way.
 * @param {object} ops Configuration params. This allows to modify some
 * frequently changed options in a convenient way, without a need to manipulate
 * directly with the created config object.
 * @param {string} ops.babelEnv Babel environment to use for the Babel
 * compilation step.
 * @param [ops.babelLoaderExclude] Overrides the default value of `exclude`
 *  option of babel-loader, which is [/node_modules/].
 * @param {object} [ops.babelLoaderOptions] Overrides for default Babel options
 * of JSX and SVG files loader.
 * @param ops.context Base URL for resolution of relative config paths.
 * @param {string} [ops.cssLocalIdent=hash:base64:6] The template for
 * CSS classnames generation by the Webpack's `css-loader`; it is passed into
 * the `localIdentName` param of the loader. It should match the corresponding
 * setting in the Babel config.
 * @param {boolean} [ops.dontEmitBuildInfo] If set the `.build-info` file won't
 * be created at the disk during the compilation.
 * @param [ops.dontUseProgressPlugin] Set to not include progress
 *  plugin.
 * @param {string|string[]} ops.entry Entry points for "main" chunk. The config
 * will prepend them by some necessary polyfills, e.g.:
 * ([babel-polyfill](https://babeljs.io/docs/usage/polyfill/),
 * [nodelist-foreach-polyfill](https://www.npmjs.com/package/nodelist-foreach-polyfill)).
 * @param {boolean|object} ops.workbox If evaluates to a truthy value,
 * [Workbox's InjectManifest plugin](https://developers.google.com/web/tools/workbox/modules/workbox-webpack-plugin#injectmanifest_plugin)
 * is added to the array of Webpack plugins, to generate service worker for
 * browser. If the value is an object, it is merged into the options passed
 * into the plugin, otherwise default options are used:
 * ```json
 * {
 *   "importWorkboxFrom": "local",
 *   "swSrc": "@dr.pogodin/react-utils/config/workbox/default.js",
 *   "swDest": "__service-worker.js"
 * }
 * ```
 * If service worker is generated by this option, it will be automatically
 * initiated at the client side by the standard
 * [client-side initialization script](docs/client.md)
 * provided by **@dr.pogodin/react-utils**. Note that `swDest`'s value cannot be
 * overriden by config options provided via `workbox` object.
 * @param {object} [ops.fs] Filesystem to use instead of the Node's FS.
 * @param {boolean|object} [ops.keepBuildInfo] If `true` and a `.build-info`
 *  file from a previous build exists in the context directory, it will be
 *  loaded and used, rather than re-generated by the config factory. It allows
 *  to re-create the Webpack config during a server launch without re-generation
 *  of the build info file created during a previous build (and thus bundled
 *  into the frontend bundle). If an object is provided, it will be used as
 *  the build info, instead of trying to load it from the filesystem. This
 *  feature is intended for testing context.
 * @param {string} ops.mode
 * [Webpack mode](https://webpack.js.org/concepts/mode/).
 * @param {string} [ops.outputPath=build] Optional. Output path for the build.
 * @param {string} ops.publicPath Base URL for the output of the build assets.
 * @param {string} [ops.sitemap] The path to JS or JSON config for sitemap.
 * It can be relative to the context, and can be a factory, which returns
 * the config. The config should be compatible with
 * [`sitemap`](https://www.npmjs.com/package/sitemap) library, and if
 * provided the Webpack config factory will use it to gererate `sitemap.xml`
 * file in the output folder, and then serve it from the app root.
 * @return The generated config will opt to:
 * - Bundle the font assets (EOF, OTF, TTF, WOFF, WOFF2 files from
 *   the `src/assets/fonts` folder of your source code will be bundled
 *   and output into the `[PUBLIC_PATH]/fonts` folder);
 * - Bundle image assets (GIF, JPEG, JPG, PNG files from any folder of
 *   your source code will be bundled and output into the
 *   `[PUBLIC_PATH]/images` folder);
 * - Bundle SCSS files from any folder of your source code, beside
 *   `node_modules` and its subfolders. The files will be compiled,
 *    bundled and extracted into the `[PUBLIC_PATH]/[CHUNK_NAME].css`
 *    bundles;
 * - Bundle CSS files from any folder of your code. The files will be
 *   bundled and extracted into the `[PUBLIC_PATH]/[CHUNK_NAME].css`
 *   bundles;
 * - Bundle JS, JSX, and SVG files; they will be compiled into the
 *   `[PUBLIC_PATH]/[CHUNK_NAME].js` bundles, using the Babel environment
 *   specified in the factory options, and
 *   [`config/babel/webpack`](./babel-config.js#webpack) config.
 *
 * - The following path aliases will be automatically set:
 * - **`assets`** for `[CONTEXT]/src/assets`;
 * - **`components`** for `[CONTEXT]/src/shared/components`;
 * - **`fonts`** for `[CONTEXT]/src/assets/fonts`;
 * - **`styles`** for `[CONTEXT]/src/styles`.
 *
 * Also `resolve.symlinks` Webpack option is set to *false* to avoid problems
 * with resolution of assets from packages linked with `npm link`.
 *
 * - The following global variables will be emulated inside the output
 *   JS bundle:
 *   - **`BUILD_RNDKEY`** — A random 32 bit key that can be used
 *     for encryption, it is set just as a global variable accessible in
 *     the code;
 *   - **`BUILD_TIMESTAMP`** — UTC timestamp of the beginning of
 *     the build;
 *   - **`FRONT_END`** — It will be set *true* inside the bundle,
 *     so that shared code can use it to determine that it is executed
 *     at the client side.
 *
 * - It also opts to polyfill the `__dirname` global variable,
 *   and to ignore imports of the `fs` Node package;
 *
 * - Also, it will store to the disk (re-writes if exists) the file
 *   `[CONTEXT]/.build-info` which will contain a stringified JSON
 *   object with the following fields:
 *   - **`rndkey`** — The value set for `BUILD_RNDKEY`;
 *   - **`timestamp`** — The value set for `BUILD_TIMESTAMP`.
 */
export default function configFactory(ops: OptionsT): Configuration;