import { IncomingMessage, ServerResponse } from 'http';
import { ComponentType } from 'react';

type Optional<T> = T | undefined;
type AppInitialProps<PropsType extends Record<string, unknown>> = {
    pageProps: PropsType;
};
type AppContext = {
    ctx: {
        req: Optional<IncomingMessage>;
        res: Optional<ServerResponse>;
    };
};
type AppType<PropsType extends Record<string, unknown>, ComponentType, RouterType> = ComponentType<{
    pageProps: PropsType;
    Component: ComponentType;
    router: RouterType;
}> & {
    getInitialProps?: (context: AppContext) => Promise<AppInitialProps<PropsType>> | AppInitialProps<PropsType>;
};

export type { AppType as A, Optional as O };