let _wss = null;

function setWss(wss) {
  _wss = wss;
}

function broadcast(payload) {
  if (!_wss) return;
  const data = JSON.stringify(payload);
  _wss.clients.forEach(ws => { if (ws.readyState === 1) ws.send(data); });
}

function broadcastBuddy(payload) {
  if (!_wss) return;
  _wss.clients.forEach((client) => {
    if (client.readyState === 1) {
      try {
        client.send(JSON.stringify(payload));
      } catch (err) {
        console.error('[ws] buddy broadcast error:', err.message);
      }
    }
  });
}

module.exports = { setWss, broadcast, broadcastBuddy };