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Courtside MVP: engine, web app, Docker + Cloudflare Tunnel deploy, docs

Browse Source 
Tournament engine (pools, single/double elimination, standings with proper
tiebreaks, withdrawals, two-court queue with ETAs and alerts), a single-process
Node server with SQLite via node:sqlite and a WebSocket live board, organizer
desk, QR landing page that follows the tournament phase, Dockerfile and
compose with cloudflared, and documentation for deploying and running a day.

Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01MB7nCCAscYsb3zzkT6LHZi
This commit is contained in:
bkvargyas
2026-09-03 20:31:46 +00:00
co-authored by Claude Fable 5.1
commit 5ade592384
39 changed files with 3103 additions and 0 deletions
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server/public/admin.js
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/* Organizer desk: live score pad. Each tap posts the running score so the public board
shows it; "Mark final" submits the set as the result. Plain fetch, no framework. */
(() => {
const slug = location.pathname.split('/')[3];
const post = (path, body) => fetch(`/admin/t/${slug}/${path}`, { method: 'POST', headers: { 'content-type': 'application/json' }, body: JSON.stringify(body) }).then(async r => { const j = await r.json().catch(() => ({})); if (!r.ok) throw new Error(j.error || r.statusText); return j; });
document.querySelectorAll('.scorepad').forEach(pad => {
const id = pad.dataset.match;
const a = pad.querySelector('[data-side=a]'), b = pad.querySelector('[data-side=b]');
let timer = null;
const push = () => { clearTimeout(timer); timer = setTimeout(() => post('live', { match: id, a: +a.textContent, b: +b.textContent }).catch(e => alert(e.message)), 150); };
pad.querySelectorAll('[data-op]').forEach(btn => btn.addEventListener('click', () => {
const [side, op] = btn.dataset.op;
const el = side === 'a' ? a : b;
el.textContent = Math.max(0, +el.textContent + (op === '+' ? 1 : -1));
push();
}));
const finalBtn = pad.nextElementSibling.querySelector('[data-final]');
finalBtn.addEventListener('click', () => {
const sa = +a.textContent, sb = +b.textContent;
if (!confirm(`Final: ${sa}–${sb}?`)) return;
post('score', { match: id, sets: `${sa}-${sb}` }).then(() => location.reload()).catch(e => alert(e.message));
});
});
// keep the desk fresh when another organizer enters a score
const ws = new WebSocket(`${location.protocol === 'https:' ? 'wss' : 'ws'}://${location.host}/ws/${slug}`);
let last = null;
ws.onmessage = ev => {
const s = JSON.parse(ev.data);
const sig = JSON.stringify([s.phase, s.courts.map(c => [c.match?.id, c.match?.status, c.status]), s.upNext.map(u => u.id)]);
if (last && sig !== last && !document.querySelector('.scorepad:hover')) location.reload();
last = sig;
};
})();
server/public/app.css
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:root{
--bg:#F7F8F6;--surface:#fff;--ink:#17202A;--muted:#5B6875;--line:#DCE1DE;
--accent:#1D6FB5;--accent-ink:#fff;--accent-soft:#E4EFF9;--sand:#B98F3F;--sand-soft:#F6EBD2;
--good:#2E8B57;--warn:#C97B1C;--crit:#C0392B;--court:#1A6FB5;--court-ink:#fff;
}
@media (prefers-color-scheme:dark){:root{--bg:#12181F;--surface:#1A222B;--ink:#E8ECEF;--muted:#9AA6B1;--line:#2B3640;--accent:#5AA3E6;--accent-ink:#0E1A26;--accent-soft:#1B3040;--sand:#D9B26E;--sand-soft:#3A3120;--good:#5FCB8A;--warn:#E39A3B;--crit:#E5655A;--court:#1D5F99}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Source Sans 3",-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;font-size:17px;line-height:1.5}
a{color:var(--accent)}
h1,h2,h3{font-family:"Barlow Condensed","Arial Narrow",Arial,sans-serif;line-height:1.1;margin:0;text-wrap:balance}
h1{font-size:44px;font-weight:700}h2{font-size:26px;font-weight:600}h3{font-size:20px;font-weight:600;color:var(--muted)}
.mono{font-family:"JetBrains Mono",ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}.small{font-size:14px}.tbd{color:var(--muted);font-style:italic}
main{max-width:960px;margin:0 auto;padding:16px 16px 64px}
.top{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;border-bottom:1px solid var(--line);background:var(--surface)}
.brand{font-family:"Barlow Condensed",sans-serif;font-weight:700;font-size:22px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink);text-decoration:none}
.top nav a{margin-left:16px;font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;letter-spacing:.06em;font-size:15px;text-decoration:none}
.foot{text-align:center;color:var(--muted);font-size:13px;padding:24px}
.eyebrow{font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;letter-spacing:.12em;font-size:13px;font-weight:600;color:var(--muted)}
.hero{padding:18px 0 8px}.hero.compact{padding:8px 0}.lede{color:var(--muted);margin:6px 0 0}.notes{white-space:pre-line}
.pill{display:inline-block;font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;letter-spacing:.08em;font-size:12px;font-weight:600;padding:2px 8px;border-radius:3px;line-height:1.5;vertical-align:middle;background:var(--accent-soft);color:var(--accent)}
.pill.live{background:var(--good);color:#fff}.pill.final{background:var(--sand-soft);color:var(--sand)}.pill.checkin{background:var(--accent);color:var(--accent-ink)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px;margin:14px 0}
.card h2{margin-bottom:8px}
.list .row{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:12px 14px;margin:8px 0;background:var(--surface);border:1px solid var(--line);border-radius:8px;color:var(--ink);text-decoration:none}
.flash{padding:10px 14px;border-radius:6px;margin:12px 0;background:var(--accent-soft)}.flash.error{background:var(--sand-soft);color:var(--crit);border-left:3px solid var(--crit)}
.banner{background:var(--sand-soft);border-left:3px solid var(--sand);padding:10px 14px;border-radius:0 6px 6px 0;margin:12px 0;font-weight:600}
.champion{text-align:center;padding:20px;margin:14px 0;border:2px solid var(--sand);border-radius:8px;background:var(--sand-soft)}.champion h2{font-size:40px}
/* forms */
.form label{display:block;margin:12px 0;font-weight:600}
.form input,.form textarea,.form select{display:block;width:100%;margin-top:4px;padding:10px 12px;font:inherit;font-weight:400;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink)}
button,.button{font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;letter-spacing:.06em;font-size:17px;font-weight:600;padding:10px 18px;border-radius:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;text-decoration:none;display:inline-block;line-height:1.2}
button.primary,.button.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
button.danger{color:var(--crit);border-color:var(--crit)}button.small{font-size:14px;padding:6px 10px}
button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.linkbox{word-break:break-all;background:var(--bg);padding:10px;border-radius:6px}
/* courts */
.courts{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:12px;margin:14px 0}
.court{background:var(--court);color:var(--court-ink);border-radius:8px;padding:12px 14px;position:relative;overflow:hidden;min-height:96px}
.court:before{content:"";position:absolute;left:50%;top:0;bottom:0;border-left:2px dashed rgba(255,255,255,.35)}
.court.idle,.court.paused{background:var(--surface);color:var(--muted);border:1px dashed var(--line)}.court.idle:before,.court.paused:before{display:none}
.court.mine{outline:3px solid var(--sand)}
.court .lbl{font-family:"Barlow Condensed",sans-serif;font-size:12px;letter-spacing:.12em;text-transform:uppercase;opacity:.85;position:relative}
.court .teams{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:10px;margin-top:6px;position:relative}
.court .t{font-family:"Barlow Condensed",sans-serif;font-size:24px;font-weight:600;line-height:1.05}
.court .t:last-child{text-align:right}
.court .s{font-size:30px;background:#0F1418;color:#fff;padding:2px 10px;border-radius:4px}
.queue{background:#0F1418;color:#F2F5F7;border-radius:8px;padding:12px 16px;margin:12px 0;display:grid;grid-template-columns:auto 1fr auto;gap:6px 14px;align-items:center}
.queue .eyebrow{grid-column:1/-1;color:#8E9BA6}
.qrow{display:contents}.qrow .k{font-family:"Barlow Condensed",sans-serif;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:#8E9BA6}
.qrow:first-of-type span:nth-child(2){color:#F0C46B;font-weight:600}.qrow.mine span:nth-child(2){text-decoration:underline}.qrow .eta{font-size:13px;color:#8E9BA6}
/* pools */
.pools{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:12px}
table{width:100%;border-collapse:collapse;font-size:15px}th{text-align:left;font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;letter-spacing:.08em;font-size:12px;color:var(--muted);padding:4px 6px;border-bottom:1px solid var(--ink)}
td{padding:6px;border-bottom:1px solid var(--line)}.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
tr.withdrawn td{color:var(--muted);text-decoration:line-through}tr.mine td{background:var(--sand-soft)}.tb{color:var(--sand);margin-left:3px}
details{margin-top:8px}summary{cursor:pointer;color:var(--muted);font-size:14px}
ul.plain,ol.plain{list-style:none;padding:0;margin:8px 0}ol.plain{counter-reset:n}ol.plain li{padding:4px 0}
.cols{columns:2;column-gap:24px}
.matches li,.sched li{display:grid;grid-template-columns:auto 1fr auto 1fr;gap:8px;padding:5px 0;border-bottom:1px solid var(--line);font-size:15px;align-items:center}
.sched li{grid-template-columns:auto 1fr auto}.matches li span:first-child{color:var(--muted);font-size:12px}.matches li span:last-child{text-align:right}
.matches li.live,.sched li.live{background:var(--accent-soft)}.won{font-weight:600}.matches li.mine{outline:1px solid var(--sand)}
.mine.card{border-color:var(--sand);border-width:2px}.big{font-size:20px}
/* bracket */
.bracketwrap{overflow-x:auto}.bstage{margin-top:12px}
.bracket{display:flex;gap:16px;align-items:stretch;min-width:max-content;padding-bottom:6px}
.round{display:flex;flex-direction:column;justify-content:space-around;gap:10px;min-width:190px}
.rlbl{font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;letter-spacing:.1em;font-size:12px;color:var(--muted);text-align:center}
.bm{border:1px solid var(--line);border-radius:6px;background:var(--bg);font-size:15px}
.bm>div{display:flex;justify-content:space-between;padding:5px 10px;gap:8px}.bm>div+div{border-top:1px solid var(--line)}
.bm .mlbl{font-family:"Barlow Condensed",sans-serif;text-transform:uppercase;letter-spacing:.08em;font-size:11px;color:var(--muted);padding:3px 10px;justify-content:center}
.bm .mlbl.live{background:var(--good);color:#fff}.bm.live{border-color:var(--good)}.bm.mine{border-color:var(--sand);border-width:2px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#0F1418;color:#fff;padding:12px 18px;border-radius:8px;max-width:90vw;box-shadow:0 8px 30px rgba(0,0,0,.3);z-index:9;font-weight:600}
.loading{color:var(--muted);padding:24px}
/* display (TV) mode */
body.display{font-size:22px;background:#0F1418;color:#F2F5F7}
body.display .top,body.display .foot{display:none}body.display main{max-width:none;padding:20px 28px}
body.display .display-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}body.display h1{font-size:56px}
body.display .court .t{font-size:40px}body.display .court .s{font-size:52px}body.display .court{min-height:150px}
body.display .card{background:#1A222B;border-color:#2B3640;color:#F2F5F7}body.display td{border-color:#2B3640}body.display .bm{background:#12181F;border-color:#2B3640}
body.display .queue{font-size:26px}body.display details{display:none}
/* admin */
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:12px}
.inline{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:8px 0}.inline input{width:auto}
.phases{display:flex;gap:6px;flex-wrap:wrap}.phases .cur{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.scorepad{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:center;margin:10px 0}
.scorepad .team{font-family:"Barlow Condensed",sans-serif;font-size:20px;font-weight:600}
.scorepad .pts{font-size:44px;text-align:center}
.scorepad .btns{display:flex;gap:6px;justify-content:center}.scorepad .btns button{font-size:24px;padding:6px 18px}
.adm-table td form{display:inline}
.qr{text-align:center}.qr img{width:min(70vw,360px);image-rendering:pixelated;border:8px solid #fff;border-radius:6px}
@media (max-width:640px){h1{font-size:34px}.cols{columns:1}.court .t{font-size:20px}.court .s{font-size:24px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
@media print{.top,.foot,button{display:none}body{background:#fff;color:#000}}
server/public/board.js
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/* Courtside public board. Renders entirely from the state JSON embedded in the page,
then keeps it fresh over a WebSocket. No framework, no build step. */
(() => {
const app = document.getElementById('app');
let state = JSON.parse(document.getElementById('state').textContent);
const myTeam = app.dataset.team || null;
const display = app.dataset.display === '1';
const seenAlerts = new Set();
const esc = s => String(s ?? '').replace(/[&<>"']/g, c => ({ '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;' }[c]));
const name = t => t ? esc(t.name) : '<span class="tbd">TBD</span>';
const isMine = m => myTeam && (m.a?.id === myTeam || m.b?.id === myTeam);
const phaseLabel = { checkin: 'Registration open', closed: 'Registration closed', live: 'Live', final: 'Final' };
const score = m => m.status === 'final' ? m.sets.map(s => `${s[0]}–${s[1]}`).join(', ')
: m.status === 'forfeit' ? 'forfeit' : m.live ? `${m.live[0]}–${m.live[1]}` : m.status === 'live' ? '0–0' : '';
const rulesLine = r => `${r.teamSize}s · to ${r.pointsTo}, win by ${r.winBy}${r.cap ? `, cap ${r.cap}` : ''}${r.bestOf > 1 ? `, best of ${r.bestOf}` : ''}`;
function render() {
const s = state;
const mine = myTeam ? [...s.teams, ...s.withdrawn].find(t => t.id === myTeam) : null;
const parts = [];
if (!display) parts.push(`<section class="hero compact"><div class="eyebrow">${esc(s.date ?? '')} · <span class="pill ${s.phase}">${phaseLabel[s.phase]}</span></div><h1>${esc(s.name)}</h1><p class="lede">${rulesLine(s.rules)}${s.avgMatchMin ? ` · matches running ~${s.avgMatchMin} min` : ''}</p></section>`);
else parts.push(`<div class="display-head"><h1>${esc(s.name)}</h1><span class="pill ${s.phase}">${phaseLabel[s.phase]}</span></div>`);
if (s.banner) parts.push(`<div class="banner">${esc(s.banner)}</div>`);
if (s.champion) parts.push(`<section class="champion"><div class="eyebrow">Champion</div><h2>${esc(s.champion)}</h2></section>`);
if (mine) parts.push(renderMyTeam(mine));
if (s.phase === 'live') { parts.push(renderCourts()); parts.push(renderUpNext()); }
if (s.phase === 'closed' && !s.pools.length) parts.push(`<section class="card"><h2>Schedule coming</h2><p>Registration is closed with ${s.teams.length} teams. The organizer is generating pools now; this page will update on its own.</p></section>`);
if (s.bracket.length) parts.push(renderBracket());
if (s.pools.length) parts.push(renderPools());
if (!s.pools.length && !s.bracket.length) parts.push(renderRoster());
if (s.withdrawn.length && !display) parts.push(`<p class="muted small">Withdrawn: ${s.withdrawn.map(t => esc(t.name)).join(', ')}</p>`);
app.innerHTML = parts.join('');
notifyMine();
}
function renderMyTeam(t) {
const s = state;
const my = [...s.pools.flatMap(p => p.matches), ...s.bracket].filter(isMine);
const live = my.find(m => m.status === 'live');
const next = s.upNext.find(isMine) ?? my.find(m => m.status === 'on_deck' || (m.status === 'pending' && m.a && m.b));
const played = my.filter(m => m.status === 'final' || m.status === 'forfeit');
const w = played.filter(m => m.winner === t.id).length;
let now;
if (t.status === 'withdrawn') now = `<p>Your team has withdrawn from the tournament.</p>`;
else if (live) now = `<p class="big">You're on <b>Court ${live.court}</b> now vs ${name(live.a?.id === t.id ? live.b : live.a)}</p>`;
else if (next) now = `<p class="big">Next: vs ${name(next.a?.id === t.id ? next.b : next.a)}${next.court ? ` on <b>Court ${next.court}</b>` : ''}${next.etaMin != null ? ` <span class="muted">in about ${next.etaMin} min</span>` : ''}</p>`;
else if (s.phase === 'final') now = `<p>Tournament over. Thanks for playing.</p>`;
else if (s.phase === 'live') now = `<p>No match scheduled yet. Waiting on results from other courts.</p>`;
else now = `<p>Waiting for play to start.</p>`;
return `<section class="card mine"><div class="eyebrow">Your team</div><h2>${esc(t.name)}</h2>${now}<p class="muted">${played.length ? `Record ${w}–${played.length - w}` : 'No results yet'}${t.poolId ? ` · Pool ${esc(t.poolId)}` : ''}</p>
${my.length ? `<ul class="plain sched">${my.map(m => `<li class="${m.status}"><span>${m.stage === 'pool' ? `Pool ${m.round}` : (m.label ?? `Bracket R${m.round}`)}</span><span>vs ${name(m.a?.id === t.id ? m.b : m.a)}</span><span class="mono">${score(m) || (m.court ? `Court ${m.court}` : '')}${m.status === 'final' || m.status === 'forfeit' ? (m.winner === t.id ? ' W' : ' L') : ''}</span></li>`).join('')}</ul>` : ''}
${!display && 'Notification' in window && Notification.permission === 'default' ? `<button type="button" class="button" id="notify">Alert me when we're up</button>` : ''}
</section>`;
}
function renderCourts() {
return `<section class="courts">${state.courts.map(c => {
const m = c.match;
if (c.status === 'paused') return `<div class="court paused"><div class="lbl">Court ${c.court}</div><div class="teams"><div class="t">Paused</div></div></div>`;
if (!m) return `<div class="court idle"><div class="lbl">Court ${c.court}</div><div class="teams"><div class="t muted">Open</div></div></div>`;
return `<div class="court ${isMine(m) ? 'mine' : ''}"><div class="lbl">Court ${c.court} · ${m.stage === 'pool' ? `Pool ${esc(m.a && state.teams.find(t => t.id === m.a.id)?.poolId || '')} R${m.round}` : (m.label ?? `Bracket R${m.round}`)}</div>
<div class="teams"><div class="t">${name(m.a)}</div><div class="s mono">${score(m) || '0–0'}</div><div class="t">${name(m.b)}</div></div></div>`;
}).join('')}</section>`;
}
function renderUpNext() {
if (!state.upNext.length) return '';
return `<section class="queue"><div class="eyebrow">Up next</div>${state.upNext.map((u, i) => `<div class="qrow ${isMine(u) ? 'mine' : ''}"><span class="k">${i === 0 ? 'On deck' : 'Then'}</span><span>${name(u.a)} vs ${name(u.b)}</span><span class="eta mono">Court ${u.court} · ~${u.etaMin} min</span></div>`).join('')}</section>`;
}
function renderPools() {
return `<section class="pools">${state.pools.map(p => `<div class="card pool"><h2>Pool ${esc(p.id)}</h2>
<table><thead><tr><th>Team</th><th class="num">W</th><th class="num">L</th><th class="num">Pts</th><th class="num">+/−</th></tr></thead><tbody>
${p.standings.map((r, i) => `<tr class="${r.status === 'withdrawn' ? 'withdrawn' : ''} ${r.teamId === myTeam ? 'mine' : ''}"><td>${i + 1}. ${esc(r.name)}${r.decidedBy ? `<span class="tb" title="Tie broken by ${r.decidedBy}">*</span>` : ''}</td><td class="num">${r.w}</td><td class="num">${r.l}</td><td class="num">${r.pf}–${r.pa}</td><td class="num">${r.pointDiff > 0 ? '+' : ''}${r.pointDiff}</td></tr>`).join('')}
</tbody></table>
<details${display ? '' : ''}><summary>Matches</summary><ul class="plain matches">${p.matches.map(m => `<li class="${m.status} ${isMine(m) ? 'mine' : ''}"><span>R${m.round}</span><span class="${m.winner && m.winner === m.a?.id ? 'won' : ''}">${name(m.a)}</span><span class="mono">${score(m) || (m.court ? `C${m.court}` : '·')}</span><span class="${m.winner && m.winner === m.b?.id ? 'won' : ''}">${name(m.b)}</span></li>`).join('')}</ul></details>
</div>`).join('')}</section>`;
}
function renderBracket() {
const groups = [['bracket', 'Bracket'], ['losers', 'Losers bracket'], ['final', 'Finals']];
return `<section class="card bracketwrap"><h2>${state.bracket.some(m => m.stage === 'losers') ? 'Double elimination' : 'Bracket'}</h2>${groups.map(([stage, title]) => {
const ms = state.bracket.filter(m => m.stage === stage && !(m.conditional && m.status !== 'final' && !m.a));
if (!ms.length) return '';
const rounds = [...new Set(ms.map(m => m.round))].sort((a, b) => a - b);
return `<div class="bstage"><h3>${title}</h3><div class="bracket">${rounds.map(r => `<div class="round"><div class="rlbl">${roundName(stage, r, rounds.length, ms)}</div>${ms.filter(m => m.round === r).map(m => `<div class="bm ${m.status} ${isMine(m) ? 'mine' : ''}">${m.label ? `<div class="mlbl">${esc(m.label)}</div>` : ''}<div class="${m.winner && m.winner === m.a?.id ? 'won' : ''}">${name(m.a)}<span class="mono">${m.sets[0] ? m.sets.map(s => s[0]).join(' ') : ''}</span></div><div class="${m.winner && m.winner === m.b?.id ? 'won' : ''}">${name(m.b)}<span class="mono">${m.sets[0] ? m.sets.map(s => s[1]).join(' ') : ''}</span></div>${m.status === 'live' ? `<div class="mlbl live">Court ${m.court}${m.live ? ` · ${m.live[0]}–${m.live[1]}` : ''}</div>` : m.status === 'forfeit' ? '<div class="mlbl">forfeit</div>' : ''}</div>`).join('')}</div>`).join('')}</div></div>`;
}).join('')}</section>`;
}
function roundName(stage, r, total, ms) {
if (stage === 'final') return r === 1 ? 'Grand final' : 'Reset';
if (stage === 'losers') return `LB round ${r}`;
const left = total - r;
const inRound = ms.filter(m => m.round === r && m.label !== '3rd place').length;
return left === 0 ? 'Final' : left === 1 ? 'Semifinals' : left === 2 ? 'Quarterfinals' : `Round of ${inRound * 2}`;
}
function renderRoster() {
return `<section class="card"><h2>Teams (${state.teams.length})</h2><ol class="plain cols">${state.teams.map(t => `<li class="${t.id === myTeam ? 'mine' : ''}">${esc(t.name)} <span class="muted">(${t.players})</span></li>`).join('')}</ol></section>`;
}
// ---- alerts for the team page ----
function notifyMine() {
if (!myTeam) return;
for (const a of state.recentAlerts) {
const key = `${a.kind}:${a.match ?? a.at}`;
if (seenAlerts.has(key)) continue;
seenAlerts.add(key);
if (!(a.kind === 'broadcast' || a.teams.includes(myTeam))) continue;
if (Date.now() - a.at > 10 * 60 * 1000) continue; // stale on first load
toast(a.text);
try { navigator.vibrate?.([200, 100, 200]); } catch {}
if ('Notification' in window && Notification.permission === 'granted') { try { new Notification('Courtside', { body: a.text, tag: key }); } catch {} }
}
}
function toast(text) {
const el = document.createElement('div'); el.className = 'toast'; el.textContent = text;
document.body.appendChild(el); setTimeout(() => el.remove(), 8000);
}
document.addEventListener('click', e => {
if (e.target.id === 'notify') Notification.requestPermission().then(render);
});
// first paint: skip toasts for alerts that already happened
for (const a of state.recentAlerts) seenAlerts.add(`${a.kind}:${a.match ?? a.at}`);
// ---- live updates ----
let retry = 1000;
function connect() {
const ws = new WebSocket(`${location.protocol === 'https:' ? 'wss' : 'ws'}://${location.host}/ws/${state.slug}`);
ws.onmessage = ev => { state = JSON.parse(ev.data); retry = 1000; render(); };
ws.onclose = () => { setTimeout(connect, retry); retry = Math.min(retry * 2, 15000); };
ws.onerror = () => ws.close();
}
render();
connect();
// belt and braces: a full refresh every 2 minutes in case a proxy drops the socket silently
setInterval(() => fetch(`/t/${state.slug}/state.json`).then(r => r.json()).then(s => { state = s; render(); }).catch(() => {}), 120000);
if (display) setInterval(() => document.documentElement.scrollTo({ top: (Date.now() / 1000 | 0) % 2 ? 0 : document.body.scrollHeight, behavior: 'smooth' }), 15000);
})();
server/public/favicon.svg
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><rect width="64" height="64" rx="12" fill="#1A6FB5"/><circle cx="32" cy="32" r="20" fill="none" stroke="#fff" stroke-width="4"/><path d="M32 12v40M12 32h40" stroke="#fff" stroke-width="3" stroke-dasharray="4 4" fill="none"/></svg>
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server/public/manifest.webmanifest
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{ "name": "Courtside", "short_name": "Courtside", "start_url": "/", "display": "standalone", "background_color": "#0F1418", "theme_color": "#0F1418", "icons": [{ "src": "/static/favicon.svg", "sizes": "any", "type": "image/svg+xml" }] }