/* Minimal static dev server for the component showcase site.
   Usage (from repo root):  node site/dev-server.js
   Then open:               http://127.0.0.1:3311/site/
   Serves the repo root so /site, /frameworks and /.design_library are all reachable. */
'use strict';
const http = require('http');
const fs = require('fs');
const path = require('path');

const PORT = 3311;
const HOST = '127.0.0.1';
const ROOT = process.cwd();

const TYPES = {
  '.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',
  '.txt': 'text/plain; charset=utf-8',
  '.vue': 'text/plain; charset=utf-8',
  '.svg': 'image/svg+xml',
  '.png': 'image/png',
  '.ico': 'image/x-icon'
};

const server = http.createServer((req, res) => {
  let urlPath;
  try {
    urlPath = decodeURIComponent(req.url.split('?')[0]);
  } catch (e) {
    res.writeHead(400);
    res.end('Bad request');
    return;
  }
  if (urlPath === '/' || urlPath === '') {
    res.writeHead(302, { Location: '/site/' });
    res.end();
    return;
  }
  if (urlPath.endsWith('/')) urlPath += 'index.html';
  // 根路径与常见入口自动跳转到站点，避免裸访问 404
  if (urlPath === '/index.html') {
    res.writeHead(302, { Location: '/site/' });
    res.end();
    return;
  }
  const filePath = path.join(ROOT, urlPath);
  // 防目录穿越
  if (!filePath.startsWith(ROOT)) {
    res.writeHead(403);
    res.end('Forbidden');
    return;
  }
  fs.readFile(filePath, (err, buf) => {
    if (err) {
      res.writeHead(404, { 'Content-Type': 'text/plain; charset=utf-8' });
      res.end('404 Not Found: ' + urlPath);
      return;
    }
    res.writeHead(200, {
      'Content-Type': TYPES[path.extname(filePath).toLowerCase()] || 'application/octet-stream',
      'Cache-Control': 'no-cache'
    });
    res.end(buf);
  });
});

server.listen(PORT, HOST, () => {
  console.log('Aurora Admin showcase serving at http://' + HOST + ':' + PORT + '/site/');
});
server.on('error', (e) => {
  console.error('Server error:', e.message);
  process.exit(1);
});