import { createServer } from "node:http";
import { readFile, stat } from "node:fs/promises";
import path from "node:path";
import { fileURLToPath } from "node:url";
const root = path.resolve(
  path.dirname(fileURLToPath(import.meta.url)),
  "..",
  "dist",
);
const prefix = "/deep/nested/rand/";
const types = new Map([
  [".css", "text/css; charset=utf-8"],
  [".html", "text/html; charset=utf-8"],
  [".js", "text/javascript; charset=utf-8"],
  [".json", "application/json; charset=utf-8"],
  [".webmanifest", "application/manifest+json; charset=utf-8"],
  [".svg", "image/svg+xml"],
  [".md", "text/markdown; charset=utf-8"],
  [".txt", "text/plain; charset=utf-8"],
  [".wasm", "application/wasm"],
  [".png", "image/png"],
  [".jpg", "image/jpeg"],
  [".webp", "image/webp"],
]);
const headers = {
  "Content-Security-Policy":
    "default-src 'self'; base-uri 'self'; object-src 'none'; frame-ancestors 'none'; form-action 'self'; script-src 'self' 'wasm-unsafe-eval'; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob:; media-src 'self' blob:; connect-src 'self'; worker-src 'self' blob:; manifest-src 'self'",
  "Cross-Origin-Opener-Policy": "same-origin",
  "Cross-Origin-Resource-Policy": "same-origin",
  "Permissions-Policy":
    "camera=(), microphone=(), geolocation=(), usb=(), payment=()",
  "Referrer-Policy": "no-referrer",
  "X-Content-Type-Options": "nosniff",
};
const server = createServer(async (request, response) => {
  try {
    const url = new URL(request.url ?? "/", "http://127.0.0.1");
    const relative = decodeURIComponent(url.pathname).startsWith(prefix)
      ? decodeURIComponent(url.pathname).slice(prefix.length)
      : decodeURIComponent(url.pathname).replace(/^\/+/, "");
    const normalized = path.posix.normalize(relative || "index.html");
    if (
      normalized === ".." ||
      normalized.startsWith("../") ||
      path.isAbsolute(normalized)
    ) {
      response.writeHead(400).end("Bad request");
      return;
    }
    let file = path.join(root, normalized);
    if ((await stat(file).catch(() => null))?.isDirectory())
      file = path.join(file, "index.html");
    const content = await readFile(file);
    response.writeHead(200, {
      "Content-Type":
        types.get(path.extname(file)) ?? "application/octet-stream",
      "Cache-Control": "no-cache",
      ...headers,
    });
    response.end(content);
  } catch {
    response.writeHead(404, { "Content-Type": "text/plain; charset=utf-8" });
    response.end("Not found");
  }
});
server.listen(4173, "127.0.0.1", () => console.log("Test server ready"));