1234567891011121314151617181920212223242526272829303132333435363738
import { serveFile } from "../core/server.ts";
import type { Middleware, RequestHandler } from "../core/server.ts";
/** The options to configure the middleware server */export interface Options {  /** The root path */  root: string;
  /** Serve the file as a fallback of the main middleware */  after?: boolean;}
export default function serveFolder(options: Options): Middleware {  return async function (    request: Request,    next: RequestHandler,  ): Promise<Response> {    let mainResponse: Response | undefined;
    if (options.after) {      mainResponse = await next(request);
      if (mainResponse.status < 400) {        return mainResponse;      }    }
    const altResponse = await serveFile(options.root, request);
    if (altResponse.status < 400) {      return altResponse;    }
    return mainResponse || next(request);  };}