import { getConfig } from '../utils/config'; import { sendHeartbeat } from '../api/chat'; export function usePresence() { const config = getConfig(); const intervalMs = (config.presenceHeartbeatSeconds || 60) * 1000; let timer = null; function start() { if (timer) return; const tick = () => sendHeartbeat().catch(() => {}); tick(); timer = setInterval(tick, intervalMs); } function stop() { if (!timer) return; clearInterval(timer); timer = null; } return { start, stop }; }