import { StorybookConfig as StorybookConfig$2, Options, CompatibleString, TypescriptOptions as TypescriptOptions$1 } from 'storybook/internal/types';
import { StorybookConfigWebpack, BuilderOptions, TypescriptOptions } from '@storybook/builder-webpack5';

type RulesConfig = any;
type ModuleConfig = {
    rules?: RulesConfig[];
};
type ResolveConfig = {
    extensions?: string[];
    mainFields?: (string | string[])[] | undefined;
    alias?: any;
};
interface WebpackConfiguration {
    plugins?: any[];
    module?: ModuleConfig;
    resolve?: ResolveConfig;
    optimization?: any;
    devtool?: false | string;
}
type StorybookConfig$1<TWebpackConfiguration = WebpackConfiguration> = StorybookConfig$2 & {
    /**
     * Modify or return a custom Webpack config after the Storybook's default configuration has run
     * (mostly used by addons).
     */
    webpack?: (config: TWebpackConfiguration, options: Options) => TWebpackConfiguration | Promise<TWebpackConfiguration>;
    /** Modify or return a custom Webpack config after every addon has run. */
    webpackFinal?: (config: TWebpackConfiguration, options: Options) => TWebpackConfiguration | Promise<TWebpackConfiguration>;
};

type FrameworkName = CompatibleString<'@storybook/angular'>;
type BuilderName = CompatibleString<'@storybook/builder-webpack5'>;
type FrameworkOptions = AngularOptions & {
    builder?: BuilderOptions;
};
type StorybookConfigFramework = {
    framework: FrameworkName | {
        name: FrameworkName;
        options: FrameworkOptions;
    };
    core?: StorybookConfig$1['core'] & {
        builder?: BuilderName | {
            name: BuilderName;
            options: BuilderOptions;
        };
    };
    typescript?: Partial<TypescriptOptions & TypescriptOptions$1> & StorybookConfig$1['typescript'];
};
/** The interface for Storybook configuration in `main.ts` files. */
type StorybookConfig = Omit<StorybookConfig$1, keyof StorybookConfigWebpack | keyof StorybookConfigFramework> & StorybookConfigWebpack & StorybookConfigFramework;
interface AngularOptions {
    enableIvy?: boolean;
}

declare function defineMain(config: StorybookConfig): StorybookConfig;

export { type StorybookConfig, defineMain };