// 创建 HTTP 服务器
const server = Deno.serve({ port: 8080 }, (req) => {
  if (req.headers.get('upgrade') === 'websocket') {
    const { socket, response } = Deno.upgradeWebSocket(req);
    socket.addEventListener('open', () => {
      console.log('a client connected!');
    });
    socket.addEventListener('message', (event) => {
      if (event.data === 'ping') {
        socket.send('pong');
      }
    });
    return response;
  }
  return new Response('HTTP server running', {
    status: 200,
  });
});

// 注释掉有问题的代码，使用上面的 Deno.serve API
// const server2 = Deno.listen({ port: 8080 });
//
// for await (const conn of server2) {
//   const httpConn = Deno.serveHttp(conn);
//   for await (const requestEvent of httpConn) {
//     console.log(requestEvent);
//   }
// }

console.log('WebSocket server running on http://localhost:8080');