/**
 * Simple static file server for testing paste variants.
 *
 * Usage:
 *   bun run serve.ts
 *
 * Then open:
 *   http://localhost:3456/paste-indexeddb.html
 *   http://localhost:3456/paste-sqlite.html
 *   http://localhost:3456/paste-nedb.html
 *
 * The SQLite variant REQUIRES HTTP (can't load .wasm from file://).
 * The IndexedDB and NeDB variants also work from file:// directly.
 */

const PORT = 3456;

const mimeTypes: Record<string, string> = {
  '.html': 'text/html',
  '.js': 'text/javascript',
  '.css': 'text/css',
  '.wasm': 'application/wasm',
  '.json': 'application/json',
};

Bun.serve({
  port: PORT,
  async fetch(req) {
    const url = new URL(req.url);
    let path = url.pathname;
    if (path === '/') path = '/index.html';

    const filePath = './dist' + path;
    const file = Bun.file(filePath);

    if (!(await file.exists())) {
      return new Response('Not found', { status: 404 });
    }

    const ext = path.substring(path.lastIndexOf('.'));
    const contentType = mimeTypes[ext] || 'application/octet-stream';

    return new Response(file, {
      headers: { 'Content-Type': contentType },
    });
  },
});

console.log(`Serving paste/dist/ at http://localhost:${PORT}/`);
console.log(`  http://localhost:${PORT}/paste-indexeddb.html`);
console.log(`  http://localhost:${PORT}/paste-sqlite.html`);
console.log(`  http://localhost:${PORT}/paste-nedb.html`);