import http from 'node:http';
const items = Array.from({length: 30}, (_,i) => ({ id: i+1, name: `item-${i+1}` }));
http.createServer((req,res) => {
  const url = new URL(req.url, 'http://localhost');
  if (req.method !== 'GET' || url.pathname !== '/api/items') { res.writeHead(404).end(); return; }
  const page = Math.max(1, Number(url.searchParams.get('page') || 1));
  const size = Math.min(20, Math.max(1, Number(url.searchParams.get('size') || 10)));
  const data = items.slice((page-1)*size, page*size);
  res.writeHead(200, {'content-type':'application/json'}).end(JSON.stringify({ data, page, size, total:items.length }));
}).listen(3000, '127.0.0.1');