declare module "@sapper/app" {
    import { PageData } from "src/utils/session";
    // from sapper/runtime/src/app/types.ts
    // sapper doesn't export its types yet
    interface Redirect {
        statusCode: number
        location: string
    }
    // end

    function goto(href: string, opts?: { replaceState: boolean }): Promise<unknown>
    function prefetch(href: string): Promise<{ redirect?: Redirect; data?: unknown }>
    function prefetchRoutes(pathnames: string[]): Promise<unknown>
    function start(opts: { target: Element | null }): Promise<unknown>
    const stores: () => {
        page: PageStore<PageData>,
        preloading: boolean,
        session: Writable<unknown>
    };

    export {
        goto, prefetch, prefetchRoutes, start, stores,
    };
}

declare module "@sapper/server" {
    import { RequestHandler } from "express";

    interface MiddlewareOptions {
        session?: (req: Express.Request, res: Express.Response) => unknown
        ignore?: unknown
    }

    function middleware(opts?: MiddlewareOptions): RequestHandler

    export { middleware };
}

declare module "@sapper/service-worker" {
    const timestamp: number;
    const files: string[];
    const shell: string[];
    const routes: { pattern: RegExp }[];

    export {
        timestamp, files, files as assets, shell, routes,
    };
}