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import { dirname } from "https://deno.land/std@0.200.0/path/mod.ts";import { encode } from "https://deno.land/std@0.200.0/encoding/base64.ts";
async function gzip(path: string): Promise<ArrayBuffer> {  const f = await Deno.open(path);  return new Response(    new Response(f.readable).body!.pipeThrough(new CompressionStream("gzip")),  ).arrayBuffer();}
function prettyBytes(n: number) {  return (n / 1024).toFixed(2) + " KB";}
async function run(cmd: string, ...args: string[]) {  const p = new Deno.Command(cmd, {    args,    stdout: "inherit",    stderr: "inherit",  });  const status = await p.spawn().status;  return status.success;}
if (import.meta.main) {  Deno.chdir(dirname(new URL(import.meta.url).pathname));  const ok = await run("wasm-pack", "build", "--target", "web");  if (ok) {    await Deno.copyFile("./pkg/deno_lol_html_bg.wasm", "./lol_html.wasm");    const wasmStat = await Deno.stat("./lol_html.wasm");    const wasmGz = await gzip("./lol_html.wasm");    const jsCode = await Deno.readTextFile("./pkg/deno_lol_html.js");    const dts = await Deno.readTextFile("./pkg/deno_lol_html.d.ts");    await Deno.writeTextFile(      "./wasm.js",      `const ungzip = (data) => new Response(new Blob([data]).stream().pipeThrough(new DecompressionStream("gzip"))).arrayBuffer();\nexport default () => ungzip(Uint8Array.from(atob("${        encode(wasmGz)      }"), c => c.charCodeAt(0)));`,    );    await Deno.writeTextFile(      "./lol_html.js",      jsCode        .replace(          /on\(selector, handlers\) \{([\s\S]+?)\}(\s+)\/\*\*/,          "on(selector, handlers) {$1;return this}$2/**",        ).replace(          /onDocument\(handlers\) \{([\s\S]+?)\}(\s+)\/\*\*/,          "onDocument(handlers) {$1;return this}$2/**",        )        .replace(          "deno_lol_html_bg.wasm",          "lol_html.wasm",        ),    );    await Deno.writeTextFile(      "./types.d.ts",      dts.replace(        "on(selector: string, handlers: any): void",        "on(selector: string, handlers: ElementHandlers): this",      ).replace(        "onDocument(handlers: any): void",        "onDocument(handlers: DocumentHandlers): this",      ).replaceAll(        "content_type?: any",        "content_type?: ContentType",      ) + [        `export interface ElementHandlers { element?: (el: Element) => void, comments?: (comment: Comment) => void, text?: (chunk: TextChunk) => void }`,        `export interface DocumentHandlers { doctype?: (doctype: Doctype) => void, comments?: (comment: Comment) => void, text?: (chunk: TextChunk) => void, end?: (end: DocumentEnd) => void }`,        `export interface ContentType { html: Boolean }`,      ].join("\n"),    );    await run("deno", "fmt", "-q", "./lol_html.js", "./types.d.ts");    console.log(      `wasm size: ${prettyBytes(wasmStat.size)}, gzipped: ${        prettyBytes(wasmGz.byteLength)      }`,    );  }}