/**

* @module

*/

import { CSS, render, type RenderOptions } from "@deno/gfm";

import "prismjs/components/prism-bash.js";

import "prismjs/components/prism-c.js";

import "prismjs/components/prism-csharp.js";

import "prismjs/components/prism-css.js";

import "prismjs/components/prism-csv.js";

import "prismjs/components/prism-diff.js";

import "prismjs/components/prism-docker.js";

import "prismjs/components/prism-graphql.js";

import "prismjs/components/prism-go.js";

import "prismjs/components/prism-java.js";

import "prismjs/components/prism-javascript.js";

import "prismjs/components/prism-json.js";

import "prismjs/components/prism-jsx.js";

import "prismjs/components/prism-markdown.js";

import "prismjs/components/prism-markup.js";

import "prismjs/components/prism-mermaid.js";

import "prismjs/components/prism-python.js";

import "prismjs/components/prism-rust.js";

import "prismjs/components/prism-sql.js";

import "prismjs/components/prism-toml.js";

import "prismjs/components/prism-typescript.js";

import "prismjs/components/prism-yaml.js";

import "prismjs/components/prism-zig.js";

export interface ServeOptions extends RenderOptions {

/**

* The title of the rendered document.

*

* @default ""

*/

title?: string;

/**

* The size of the page. See the

* [`size`](https://developer.mozilla.org/en-US/docs/Web/CSS/@page/size) CSS

* attribute for more information.

*

* @default "A4"

*/

pageSize?: string;

/**

* Additional CSS to be included in the rendered document.

*/

additionalCss?: string;

}

/**

* Serve a markdown file as an HTTP server.

*

* Any request to the server will return the rendered markdown as HTML.

*

* @example Serving basic markdown:

*

* ```ts

* import { serve } from "@kitsonk/md2pdf/serve";

*

* const server = await serve("# Hello, world!");

* const res = await fetch(`http://localhost:${server.addr.port}/`);

* const html = await res.text();

* console.log(html);

* await server.shutdown();

* ```

*/

export async function serve(md: string, options: ServeOptions = {}): Promise<Deno.HttpServer<Deno.NetAddr>> {

const { title = "", pageSize = "A4", additionalCss, ...renderOptions } = options;

const { promise, resolve } = Promise.withResolvers<void>();

const server = Deno.serve({

port: 0,

onListen() {

resolve();

},

handler(_req) {

const body = render(md, renderOptions);

return new Response(

`<!DOCTYPE html>

<html lang="en">

<head>

<meta charset="utf-8">

<meta name="viewport" content="width=device-width, initial-scale=1.0">

<style>

@page {

size: ${pageSize};

}

main {

max-width: 800px;

margin: 0 auto;

}

${CSS}

${additionalCss ?? ""}

</style>

<title>${title}</title>

</head>

<body>

<main class="markdown-body">

${body}

</main>

</body>

</html>`,

{

headers: {

"content-type": "text/html; charset=utf-8",

"cache-control": "no-store",

},

},

);

},

});

await promise;

return server;

}