import http from "http";
import fs from "fs";
import path from "path";
import url from "url";

const __dirname = path.dirname(url.fileURLToPath(import.meta.url));
const ROOT = path.resolve(__dirname, "..");

const PORT = process.env.PORT || 5173;

const MIME = {
  ".html": "text/html; charset=utf-8",
  ".css": "text/css; charset=utf-8",
  ".js": "text/javascript; charset=utf-8",
  ".mjs": "text/javascript; charset=utf-8",
  ".json": "application/json; charset=utf-8",
  ".svg": "image/svg+xml",
  ".png": "image/png",
  ".jpg": "image/jpeg",
  ".jpeg": "image/jpeg",
  ".ttf": "font/ttf",
  ".woff": "font/woff",
  ".woff2": "font/woff2",
};

const server = http.createServer((req, res) => {
  let reqPath = req.url.split("?")[0];
  if (reqPath === "/") {
    reqPath = "/index.html";
  }
  const filePath = path.join(ROOT, reqPath);

  fs.stat(filePath, (err, stat) => {
    if (err || !stat.isFile()) {
      res.writeHead(404, { "content-type": "text/plain; charset=utf-8" });
      res.end("404 Not Found");
      return;
    }
    const ext = path.extname(filePath).toLowerCase();
    const ctype = MIME[ext] || "application/octet-stream";
    res.writeHead(200, { "content-type": ctype, "cache-control": "no-cache" });
    fs.createReadStream(filePath).pipe(res);
  });
});

server.listen(PORT, () => {
  console.log(`[serve] http://localhost:${PORT}`);
});