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import React from "./vendor/https/dev.jspm.io/react/index.js";import ReactDOMServer from "./vendor/https/dev.jspm.io/react-dom/server.js";import { HttpHandler } from "./router.ts";import { resolveIndexPath } from "./router_util.ts";
export type DFC<P = {}> = React.FC<P> & {  getInitialProps?: () => Promise<P>;};
/** Serve jsx/tsx by dynamic import */export function serveJsx(  dir: string,  parentComponent: any = React.Fragment): HttpHandler {  return async function serveJsx(req) {    const { pathname } = new URL(req.url, "http://dummy");    const p = await resolveIndexPath(dir, pathname, [".tsx", ".jsx"]);    if (p) {      const jsx = await import(p);      const el = jsx.default as DFC;      if (!el) {        throw new Error(          "jsx: jsx/tsx files served by serveJsx must has default export!"        );      }      if (typeof el !== "function") {        throw new Error("jsx: default export must be React component!");      }      let props = {};      if (typeof el.getInitialProps === "function") {        props = await el.getInitialProps();      }      await req.respond({        status: 200,        headers: new Headers({          "content-type": "text/html; charset=UTF-8"        }),        body: ReactDOMServer.renderToString(          React.createElement(            parentComponent,            {},            React.createElement(el, props, [])          )        )      });    }  };}