simonandClaude Opus 5
ad999e1c3e
Two frontends sharing one WebSocket-backed state on the server: - Player: fullscreen poster background with a small frame (30% of the screen) that drifts diagonally and reflects off the edges. Two stacked YouTube players hand over with a 5s equal-power crossfade so there is never silence between tracks. - Queue: add by URL, drag to reorder, delete, click to jump. Shows title and length per item, highlights what is playing, and tracks remaining vs. total playtime. No API key is required — titles come from YouTube's oEmbed endpoint and durations from a hidden muted probe player that cues each new video just to read its length. The fade is driven by both requestAnimationFrame and the interval tick: a hidden or throttled tab stops serving frames entirely, which would otherwise strand a handover half-faded with two tracks audible. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Tg15tLAuT6NrCE1ZxKVgDB
60 lines
1.5 KiB
JavaScript
60 lines
1.5 KiB
JavaScript
// Reconnecting WebSocket shared by both frontends. A party laptop that sleeps,
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// or a server restart, must not require reloading the tabs.
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export function connect({ onMessage, onStatus } = {}) {
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let ws = null;
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let retry = 500;
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const outbox = [];
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function open() {
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const proto = location.protocol === 'https:' ? 'wss:' : 'ws:';
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ws = new WebSocket(`${proto}//${location.host}`);
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ws.addEventListener('open', () => {
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retry = 500;
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onStatus?.('online');
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while (outbox.length) ws.send(outbox.shift());
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});
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ws.addEventListener('message', (event) => {
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let msg;
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try {
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msg = JSON.parse(event.data);
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} catch {
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return;
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}
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onMessage?.(msg);
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});
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ws.addEventListener('close', () => {
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onStatus?.('offline');
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setTimeout(open, retry);
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retry = Math.min(retry * 2, 5000);
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});
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ws.addEventListener('error', () => ws.close());
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}
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open();
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return {
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send(message) {
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const payload = JSON.stringify(message);
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if (ws && ws.readyState === WebSocket.OPEN) ws.send(payload);
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else outbox.push(payload);
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},
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};
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}
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/** Seconds → H:MM:SS (or M:SS below an hour). */
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export function formatDuration(seconds) {
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if (!Number.isFinite(seconds) || seconds < 0) return '?';
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const total = Math.round(seconds);
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const h = Math.floor(total / 3600);
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const m = Math.floor((total % 3600) / 60);
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const s = total % 60;
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return h > 0
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? `${h}:${String(m).padStart(2, '0')}:${String(s).padStart(2, '0')}`
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: `${m}:${String(s).padStart(2, '0')}`;
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}
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