mc-dashboard/components/EventsBridge.tsx
hurkicorgi 359a12ef9d SSE events bridge, PWA service worker, offline banner, lazy admin tabs
- New /api/events SSE endpoint (authed): pushes status every 5s and chat
  on log-file mtime change (~1.5s poll). Heartbeat every 15s, hard-caps
  each stream at 10min so the browser gets a clean auth refresh on
  reconnect. Auto-aborts on client disconnect.
- Factored shared helpers out of the existing routes:
  - lib/server-status.ts (probeStatus, reused by /api/status + SSE)
  - lib/chat-log.ts (parseLogLine, readChatMessages, logMtime, reused by
    /api/chat + SSE)
- EventsBridge client (mounted in Providers) opens one EventSource per
  authed session and writes live data into the TanStack Query cache for
  ["status"] and ["chat"] — no refactor needed in consuming components,
  they keep reading their usual query keys.
- Now that SSE pushes updates, polling intervals bumped: StatusCard and
  ServerControls 10s -> 60s, ChatBridge 5s -> 30s. SSE handles realtime,
  polling is safety fallback.
- OfflineBanner: sticky amber bar when navigator.onLine flips false.
- PWA: minimal public/sw.js with shell + asset cache (network-first for
  HTML, stale-while-revalidate for static assets, never touches /api/*
  or text/event-stream). ServiceWorkerRegister client registers it in
  production only.
- AdminTabs now uses next/dynamic with skeleton fallbacks for Players /
  Chat / Mods / Backups / Logs, keeping initial /admin bundle smaller.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-13 05:48:00 -06:00

51 lines
1.3 KiB
TypeScript

"use client";
import { useQueryClient } from "@tanstack/react-query";
import { useSession } from "next-auth/react";
import { useEffect } from "react";
export function EventsBridge() {
const { data: session, status } = useSession();
const queryClient = useQueryClient();
useEffect(() => {
if (status !== "authenticated" || !session) return;
if (typeof window === "undefined" || !("EventSource" in window)) return;
let closed = false;
let es: EventSource | null = null;
const connect = () => {
if (closed) return;
es = new EventSource("/api/events");
es.addEventListener("status", (e: MessageEvent) => {
try {
queryClient.setQueryData(["status"], JSON.parse(e.data));
} catch {}
});
es.addEventListener("chat", (e: MessageEvent) => {
try {
queryClient.setQueryData(["chat"], JSON.parse(e.data));
} catch {}
});
es.onerror = () => {
// Browser auto-retries, but if the server closed after the 10m cap
// we want a clean reconnect rather than tight reconnect loops.
if (closed) return;
es?.close();
es = null;
setTimeout(connect, 3000);
};
};
connect();
return () => {
closed = true;
es?.close();
};
}, [status, session, queryClient]);
return null;
}