/// <reference types="node" />
import { IncomingMessage } from "http";
import { ParsedUrlQuery } from "querystring";
import { ReactNode } from "react";
import { AppContext, AppInitialProps, AppProps } from "next/app";
import { DehydratedState } from "./GlobalAppState";
import { GlobalAppStatePropertyParameters } from "./GlobalAppStateProperty";
/**
 * An object literal. All fields are optional.
 */
interface AppFactoryOptions {
    /**
     * You can pass a Next.js `Head` component here
     * that will be included in every page.
     */
    Head?: ReactNode;
    /**
     * Any component that wraps its children. Here
     * you can inject UI that persists across all
     * the site's pages.
     */
    Wrapper?: (props: {
        children: ReactNode;
    }) => JSX.Element;
    /**
     * An array of objects describing the global app state properties
     * that `appFactory` will implement into the `App` component.
     * Read the documentation for `GlobalAppStatePropertyParameters`
     * for more on what the objects should look like.
     */
    properties?: GlobalAppStatePropertyParameters[];
}
interface App {
    (props: AppInitialPropsExtended & AppProps): JSX.Element;
    getInitialProps(appContext: AppContext): Promise<AppInitialPropsExtended>;
    getInitialState(req: IncomingMessage): Promise<DehydratedState>;
    getURLParams(query: ParsedUrlQuery): Promise<URLParams>;
}
interface AppInitialPropsExtended extends AppInitialProps {
    dehydratedState: DehydratedState;
    urlParams: URLParams;
}
export interface URLParams {
    [key: string]: string;
}
/**
 * Function that returns a Next.js custom `App` component.
 * Takes an optional argument where you can specify
 * options to customize the output of the factory.
 * @param options An optional argument where you can specify options to customize the output of the factory
 * @return A Next.js custom `App` component
 */
declare function appFactory(options?: AppFactoryOptions): App;
export default appFactory;
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