// bracket.js — knockout bracket. R32 slots come from bracket-config.json // (group positions resolved via computeStandings(), best-third slots via // thirdPlaceAssignment); every later round is generated by sequential pairing // of winners (nodes 0-1 → next 0, 2-3 → next 1, …). SF losers feed the // third-place match. Unresolvable slots render as placeholders, unplayed // matches as TBD. Interactions land in step 8, simulation in step 9. import { getData, flagSrc } from './app.js'; import { get as storageGet, set as storageSet, getFavorites } from './storage.js'; import { computeStandings, isGroupFinished } from './groups.js'; import { t, translatePhase } from './i18n.js'; import { openMatchModal } from './modal.js'; const ROUNDS = [ { id: 'R32', phase: 'Round of 32', size: 16 }, { id: 'R16', phase: 'Round of 16', size: 8 }, { id: 'QF', phase: 'Quarterfinals', size: 4 }, { id: 'SF', phase: 'Semifinals', size: 2 }, { id: 'FINAL', phase: 'Final', size: 1 }, ]; // ---------------------------------------------------------------- tree let cachedTree = null; // results are static per page load; simulation (step 9) will call this export function invalidateBracket() { cachedTree = null; } export function getBracketTree() { if (!cachedTree) cachedTree = buildTree(); return cachedTree; } function buildTree() { const { matches, resultByMatchId, bracketConfig } = getData(); const simulation = storageGet('simulation', {}); const standings = computeStandings(); const matchByRef = new Map(matches.filter((m) => m.bracketRef).map((m) => [m.bracketRef, m])); const nodesByRef = new Map(); const rounds = []; let previous = null; for (const round of ROUNDS) { const nodes = []; for (let i = 0; i < round.size; i += 1) { const ref = round.id === 'FINAL' ? 'FINAL' : `${round.id}-${i + 1}`; const node = { ref, round: round.id, phase: round.phase, match: matchByRef.get(ref) ?? null, home: null, away: null, winner: null, loser: null, result: null, }; if (round.id === 'R32') { const entry = bracketConfig.round32[i]; node.home = configSlot(entry.home, standings, bracketConfig); node.away = configSlot(entry.away, standings, bracketConfig); } else { node.home = previous[i * 2].winner ? { teamId: previous[i * 2].winner } : { ph: { kind: 'tbd' } }; node.away = previous[i * 2 + 1].winner ? { teamId: previous[i * 2 + 1].winner } : { ph: { kind: 'tbd' } }; } decide(node, resultByMatchId); applySimulation(node, simulation); nodes.push(node); nodesByRef.set(ref, node); } rounds.push({ ...round, nodes }); previous = nodes; } const [sf1, sf2] = rounds.find((r) => r.id === 'SF').nodes; const third = { ref: 'THIRD-PLACE', round: 'THIRD', phase: 'Third Place', match: matchByRef.get('THIRD-PLACE') ?? null, home: sf1.loser ? { teamId: sf1.loser } : { ph: { kind: 'tbd' } }, away: sf2.loser ? { teamId: sf2.loser } : { ph: { kind: 'tbd' } }, winner: null, loser: null, result: null, }; decide(third, resultByMatchId); applySimulation(third, simulation); nodesByRef.set('THIRD-PLACE', third); return { rounds, third, nodesByRef, champion: nodesByRef.get('FINAL').winner }; } function configSlot(spec, standings, config) { if (spec.type === 'third') { const group = config.thirdPlaceAssignment?.[String(spec.slot)]; if (group && isGroupFinished(group)) return { teamId: standings[group][2].teamId }; return { ph: { kind: 'third', n: spec.slot } }; } if (isGroupFinished(spec.ref)) return { teamId: standings[spec.ref][spec.pos - 1].teamId }; return { ph: { kind: spec.pos === 1 ? 'groupWinner' : 'groupRunnerUp', g: spec.ref } }; } // real finished results only — the simulation overlay is applySimulation()'s // job and always loses to a real result function decide(node, resultByMatchId) { const result = node.match ? resultByMatchId.get(node.match.id) : null; node.result = result ?? null; node.simulated = false; node.simScore = null; if (!result || result.status !== 'finished' || !node.home.teamId || !node.away.teamId) return; let side = result.homeScore > result.awayScore ? 'home' : result.homeScore < result.awayScore ? 'away' : null; if (!side && result.penalties) { side = result.penalties.home > result.penalties.away ? 'home' : 'away'; } if (!side) return; node.winner = node[side].teamId; node.loser = node[side === 'home' ? 'away' : 'home'].teamId; } function isSimulatable(node) { const realLocked = node.result && node.result.status !== 'scheduled'; return Boolean(node.match) && !realLocked && Boolean(node.home.teamId) && Boolean(node.away.teamId); } // User simulation overlays matches without a real final result. Entries whose // winner no longer matches either resolved team (stale picks after upstream // changes) are silently ignored — same validation the prediction import uses. function applySimulation(node, simulation) { if (node.winner || !node.home.teamId || !node.away.teamId) return; if (node.result?.status === 'finished') return; const entry = simulation[node.ref]; if (!entry || (entry.winner !== node.home.teamId && entry.winner !== node.away.teamId)) return; node.winner = entry.winner; node.loser = entry.winner === node.home.teamId ? node.away.teamId : node.home.teamId; node.simulated = true; const parsed = /^(\d+)-(\d+)$/.exec(entry.score ?? ''); node.simScore = parsed ? { home: Number(parsed[1]), away: Number(parsed[2]) } : null; } // ------------------------------------------------------ display helpers function slotDisplay(slot) { if (slot?.teamId) { const team = getData().teamById.get(slot.teamId); return { team, label: team.name }; } const ph = slot?.ph ?? { kind: 'tbd' }; switch (ph.kind) { case 'groupWinner': return { team: null, label: t('bracket.groupWinner').replace('{g}', ph.g) }; case 'groupRunnerUp': return { team: null, label: t('bracket.groupRunnerUp').replace('{g}', ph.g) }; case 'third': return { team: null, label: t('bracket.bestThird').replace('{n}', ph.n) }; default: return { team: null, label: t('app.tbd') }; } } // Shared by schedule.js and modal.js: given a match (group or knockout) or a // bracketRef string, returns { home, away } as { team: Team|null, label }. export function resolveBracketTeams(matchOrRef) { const ref = typeof matchOrRef === 'string' ? matchOrRef : matchOrRef.bracketRef; if (!ref) { const { teamById } = getData(); const make = (id) => { const team = teamById.get(id) ?? null; return { team, label: team?.name ?? t('app.tbd') }; }; return { home: make(matchOrRef.homeTeam), away: make(matchOrRef.awayTeam) }; } const node = getBracketTree().nodesByRef.get(ref); if (!node) { const tbd = { team: null, label: t('app.tbd') }; return { home: tbd, away: tbd }; } return { home: slotDisplay(node.home), away: slotDisplay(node.away) }; } // ------------------------------------------------ shared favorites helper // Matches involving a favorited team — shared by schedule.js and bracket.js. // Uses resolved slots so knockout matches count once their teams are known. export function getFavoriteMatches(matches, favorites) { if (!favorites.length) return []; const favSet = new Set(favorites); return matches.filter((match) => { const slots = resolveBracketTeams(match); return favSet.has(slots.home.team?.id) || favSet.has(slots.away.team?.id); }); } // --------------------------------------------------- challenge (step 12) // For every knockout match with a real finished result, compares the actual // winner with the user's simulated pick. Recalculated on every render — no // persistence of its own. export function calculateChallengeScore(simulation, results, bracketTree) { const resultById = new Map(results.map((r) => [r.matchId, r])); const byPhaseCount = {}; let correct = 0; let total = 0; for (const node of bracketTree.nodesByRef.values()) { if (!node.match || !node.home.teamId || !node.away.teamId) continue; const result = resultById.get(node.match.id); if (result?.status !== 'finished') continue; let side = result.homeScore > result.awayScore ? 'home' : result.homeScore < result.awayScore ? 'away' : null; if (!side && result.penalties) { side = result.penalties.home > result.penalties.away ? 'home' : 'away'; } if (!side) continue; const realWinner = node[side].teamId; total += 1; byPhaseCount[node.phase] ??= { correct: 0, total: 0 }; byPhaseCount[node.phase].total += 1; if (simulation[node.ref]?.winner === realWinner) { correct += 1; byPhaseCount[node.phase].correct += 1; } } const byPhase = Object.fromEntries( Object.entries(byPhaseCount).map(([phase, c]) => [phase, `${c.correct}/${c.total}`]), ); return { correct, total, byPhase }; } // ------------------------------------------- share prediction (step 12) export function getShareableLink() { const url = new URL(location.href); url.searchParams.set('prediction', btoa(JSON.stringify(getSimulation()))); return url.toString(); } // Reads ?prediction= on load. Applies only if every key exists in the current // bracket tree and the user confirms; invalid/incompatible data is silently // ignored. The param is removed from the URL either way. export function loadPredictionFromURL() { const param = new URLSearchParams(location.search).get('prediction'); if (!param) return; const cleanURL = new URL(location.href); cleanURL.searchParams.delete('prediction'); history.replaceState(null, '', cleanURL); try { const data = JSON.parse(atob(param)); if (typeof data !== 'object' || data === null || Array.isArray(data)) return; const entries = Object.entries(data); if (!entries.length) return; const tree = getBracketTree(); const valid = entries.every(([ref, entry]) => tree.nodesByRef.has(ref) && entry && typeof entry.winner === 'string'); if (!valid) return; if (window.confirm(t('share.confirm'))) { storageSet('simulation', data); refreshAfterSimChange(); } } catch { // malformed base64/JSON — ignore silently per spec } } // -------------------------------------------------------------- render export function initBracket() { render(); document.addEventListener('langchange', render); document.addEventListener('favchange', render); document.addEventListener('datachange', render); // tree already invalidated by the poll → rebuilds loadPredictionFromURL(); const root = document.getElementById('bracket-root'); const activate = (el) => { if (simMode) { const node = getBracketTree().nodesByRef.get(el.dataset.ref); if (node && isSimulatable(node)) { openSimEditor(el.dataset.ref); return; } } openMatchModal(Number(el.dataset.matchId)); }; root.addEventListener('click', (event) => { const node = event.target.closest('[data-match-id]'); if (node) activate(node); }); root.addEventListener('keydown', (event) => { if (event.key !== 'Enter' && event.key !== ' ') return; const node = event.target.closest('[data-match-id]'); if (node) { event.preventDefault(); activate(node); } }); } function challengeCardHTML(challenge) { const phases = Object.entries(challenge.byPhase) .map(([phase, score]) => `${translatePhase(phase)}: ${score}`) .join(''); const summary = t('challenge.correct') .replace('{x}', challenge.correct) .replace('{y}', challenge.total); return `
${t('challenge.title')} ${summary} ${phases}
`; } function render() { const tree = getBracketTree(); const simulation = getSimulation(); const challenge = calculateChallengeScore(simulation, getData().results, tree); const hasPicks = Object.keys(simulation).length > 0; document.getElementById('bracket-root').innerHTML = ` ${challenge.total ? challengeCardHTML(challenge) : ''}
${simMode ? `

${t('sim.hint')}

` : ''}
${tree.rounds.filter((r) => r.id !== 'FINAL').map(roundColumnHTML).join('')} ${finalColumnHTML(tree)}
`; document.getElementById('sim-toggle').addEventListener('click', () => { simMode = !simMode; render(); }); document.getElementById('sim-reset').addEventListener('click', () => { storageSet('simulation', {}); refreshAfterSimChange(); }); document.getElementById('share-pred').addEventListener('click', async (event) => { const btn = event.currentTarget; const link = getShareableLink(); try { await navigator.clipboard.writeText(link); const original = btn.textContent; btn.textContent = t('share.copied'); setTimeout(() => { btn.textContent = original; }, 2000); } catch { window.prompt(t('share.button'), link); // clipboard unavailable — let the user copy manually } }); initInteractions(); } function roundColumnHTML(round) { const pairs = []; for (let i = 0; i < round.nodes.length; i += 2) { pairs.push(`
${matchNodeHTML(round.nodes[i])}
${matchNodeHTML(round.nodes[i + 1])}
`); } return `

${translatePhase(round.phase)}

${pairs.join('')}
`; } function finalColumnHTML(tree) { const finalNode = tree.rounds.find((r) => r.id === 'FINAL').nodes[0]; const champion = tree.champion ? slotDisplay({ teamId: tree.champion }) : null; return `

${translatePhase('Final')}

${t('bracket.champion')} ${champion ? champion.label : t('app.tbd')}
${matchNodeHTML(finalNode)}

${translatePhase('Third Place')}

${matchNodeHTML(tree.third)}
`; } function matchNodeHTML(node) { const home = slotDisplay(node.home); const away = slotDisplay(node.away); const live = node.result?.status === 'live'; const favorites = getFavorites(); const hasFav = favorites.includes(node.home.teamId) || favorites.includes(node.away.teamId); const classes = [ 'bracket-match', live ? 'is-live' : '', node.simulated ? 'is-sim' : '', hasFav ? 'has-fav' : '', simMode && isSimulatable(node) ? 'simulatable' : '', ].filter(Boolean).join(' '); const interactive = node.match ? `data-match-id="${node.match.id}" tabindex="0" role="button" aria-label="${home.label} ${t('hero.vs')} ${away.label} — ${translatePhase(node.phase)}"` : ''; return `
${node.simulated ? `${t('sim.chip')}` : ''} ${teamRowHTML(home, node, 'home')} ${teamRowHTML(away, node, 'away')}
`; } // ----------------------------------------------------- simulation (step 9) let simMode = false; function getSimulation() { return storageGet('simulation', {}); } function refreshAfterSimChange() { invalidateBracket(); render(); document.dispatchEvent(new CustomEvent('simchange')); } function ensureSimDialog() { if (document.getElementById('sim-dialog')) return; document.getElementById('modal-root').insertAdjacentHTML( 'beforeend', '', ); const dialog = document.getElementById('sim-dialog'); dialog.addEventListener('click', (event) => { if (event.target === dialog) dialog.close(); }); } function openSimEditor(ref) { ensureSimDialog(); const dialog = document.getElementById('sim-dialog'); const node = getBracketTree().nodesByRef.get(ref); const existing = getSimulation()[ref] ?? null; const home = slotDisplay(node.home); const away = slotDisplay(node.away); const [scoreHome, scoreAway] = (existing?.score ?? '').split('-'); let selected = existing?.winner ?? null; const teamButton = (slot, display) => ` `; dialog.innerHTML = ` `; const saveBtn = dialog.querySelector('#sim-save'); const homeInput = dialog.querySelector('#sim-score-home'); const awayInput = dialog.querySelector('#sim-score-away'); const select = (teamId) => { selected = teamId; for (const btn of dialog.querySelectorAll('.sim-team')) { btn.classList.toggle('active', btn.dataset.team === teamId); } saveBtn.disabled = !selected; }; for (const btn of dialog.querySelectorAll('.sim-team')) { btn.addEventListener('click', () => select(btn.dataset.team)); } // an unequal score implies the winner; a draw needs an explicit pick (pens) const onScoreInput = () => { const h = homeInput.value === '' ? null : Number(homeInput.value); const a = awayInput.value === '' ? null : Number(awayInput.value); if (h === null || a === null || h === a) return; select(h > a ? node.home.teamId : node.away.teamId); }; homeInput.addEventListener('input', onScoreInput); awayInput.addEventListener('input', onScoreInput); dialog.setAttribute('aria-label', `${t('sim.title')} — ${home.label} ${t('hero.vs')} ${away.label}`); dialog.querySelector('[data-close]').addEventListener('click', () => dialog.close()); dialog.querySelector('#sim-clear').addEventListener('click', () => { const simulation = getSimulation(); delete simulation[ref]; storageSet('simulation', simulation); dialog.close(); refreshAfterSimChange(); }); saveBtn.addEventListener('click', () => { if (!selected) return; const h = homeInput.value === '' ? (selected === node.home.teamId ? 1 : 0) : Number(homeInput.value); const a = awayInput.value === '' ? (selected === node.away.teamId ? 1 : 0) : Number(awayInput.value); const simulation = getSimulation(); simulation[ref] = { winner: selected, score: `${h}-${a}` }; storageSet('simulation', simulation); dialog.close(); refreshAfterSimChange(); }); dialog.showModal(); } // ------------------------------------------------- interactions (step 8) const ROUND_ORDER = ['R32', 'R16', 'QF', 'SF', 'FINAL']; // zoom level survives re-renders (language switch) but not reloads const view = { scale: 1, natW: 0, natH: 0 }; const MIN_SCALE = 0.4; const MAX_SCALE = 2; function initInteractions() { const wrap = document.getElementById('bracket-wrap'); const zoomBox = document.getElementById('bracket-zoom'); const canvas = document.getElementById('bracket-canvas'); view.natW = 0; // re-measure lazily — panel may be hidden right now (offsetWidth 0) if (view.scale !== 1) applyScale(wrap, zoomBox, canvas); updateZoomLabel(); const ensureMeasured = () => { if (view.natW) return true; if (!canvas.offsetWidth) return false; view.natW = canvas.offsetWidth; view.natH = canvas.offsetHeight; return true; }; const setScale = (next, cx, cy) => { if (!ensureMeasured()) return; const scale = Math.min(MAX_SCALE, Math.max(MIN_SCALE, next)); if (scale === view.scale) return; const rect = wrap.getBoundingClientRect(); const px = (cx - rect.left + wrap.scrollLeft) / view.scale; const py = (cy - rect.top + wrap.scrollTop) / view.scale; view.scale = scale; applyScale(wrap, zoomBox, canvas); wrap.scrollLeft = px * scale - (cx - rect.left); wrap.scrollTop = py * scale - (cy - rect.top); updateZoomLabel(); }; const zoomAtCenter = (factor) => { const rect = wrap.getBoundingClientRect(); setScale(view.scale * factor, rect.left + rect.width / 2, rect.top + rect.height / 2); }; document.getElementById('zoom-in').addEventListener('click', () => zoomAtCenter(1.25)); document.getElementById('zoom-out').addEventListener('click', () => zoomAtCenter(1 / 1.25)); document.getElementById('zoom-reset').addEventListener('click', () => { if (!ensureMeasured()) return; view.scale = 1; applyScale(wrap, zoomBox, canvas); updateZoomLabel(); }); wrap.addEventListener('wheel', (event) => { event.preventDefault(); setScale(view.scale * (event.deltaY < 0 ? 1.12 : 1 / 1.12), event.clientX, event.clientY); }, { passive: false }); // drag to pan (1 pointer) + pinch to zoom (2 pointers) const pointers = new Map(); let dragging = false; let dragMoved = false; let start = null; let pinch = null; wrap.addEventListener('pointerdown', (event) => { pointers.set(event.pointerId, event); // IMPORTANT: do NOT setPointerCapture here — capturing retargets the // eventual click to the wrap, which kills match-node clicks (modal and // simulation). Capture only once a real drag/pinch begins. if (pointers.size === 1) { dragging = true; dragMoved = false; start = { x: event.clientX, y: event.clientY, left: wrap.scrollLeft, top: wrap.scrollTop }; } else if (pointers.size === 2) { dragging = false; for (const p of pointers.values()) { try { wrap.setPointerCapture(p.pointerId); } catch { /* pointer already gone */ } } const [a, b] = [...pointers.values()]; pinch = { dist: Math.hypot(a.clientX - b.clientX, a.clientY - b.clientY), scale: view.scale }; } }); wrap.addEventListener('pointermove', (event) => { if (!pointers.has(event.pointerId)) return; pointers.set(event.pointerId, event); if (pointers.size === 2 && pinch) { const [a, b] = [...pointers.values()]; const dist = Math.hypot(a.clientX - b.clientX, a.clientY - b.clientY); setScale(pinch.scale * (dist / pinch.dist), (a.clientX + b.clientX) / 2, (a.clientY + b.clientY) / 2); } else if (dragging) { const dx = event.clientX - start.x; const dy = event.clientY - start.y; if (!dragMoved && (Math.abs(dx) > 5 || Math.abs(dy) > 5)) { dragMoved = true; try { wrap.setPointerCapture(event.pointerId); } catch { /* pointer already gone */ } wrap.classList.add('dragging'); } if (dragMoved) { wrap.scrollLeft = start.left - dx; wrap.scrollTop = start.top - dy; } } }); const endPointer = (event) => { pointers.delete(event.pointerId); if (pointers.size < 2) pinch = null; if (pointers.size === 0) { dragging = false; wrap.classList.remove('dragging'); } }; wrap.addEventListener('pointerup', endPointer); wrap.addEventListener('pointercancel', endPointer); // a real drag must not fire the match-node click underneath wrap.addEventListener('click', (event) => { if (dragMoved) { event.stopPropagation(); event.preventDefault(); dragMoved = false; } }, true); // hover/focus path highlight canvas.addEventListener('mouseover', (event) => { const node = event.target.closest('.bracket-match'); if (node) showPath(node.dataset.ref); }); canvas.addEventListener('mouseout', () => clearPath()); canvas.addEventListener('focusin', (event) => { const node = event.target.closest('.bracket-match'); if (node) showPath(node.dataset.ref); }); canvas.addEventListener('focusout', () => clearPath()); } function applyScale(wrap, zoomBox, canvas) { if (view.natW) { zoomBox.style.width = `${view.natW * view.scale}px`; zoomBox.style.height = `${view.natH * view.scale}px`; } canvas.style.transform = view.scale === 1 ? '' : `scale(${view.scale})`; if (view.scale === 1) { zoomBox.style.width = ''; zoomBox.style.height = ''; } } function updateZoomLabel() { const label = document.getElementById('zoom-reset'); if (label) label.textContent = `${Math.round(view.scale * 100)}%`; } // ----------------------------------------------------- path highlight function refOf(roundIndex, nodeIndex) { const id = ROUND_ORDER[roundIndex]; return id === 'FINAL' ? 'FINAL' : `${id}-${nodeIndex + 1}`; } // full path = the hovered node, every feeder below it, and its winner's // route up to the final function pathRefs(ref) { const refs = new Set([ref]); if (ref === 'THIRD-PLACE') { refs.add('SF-1'); refs.add('SF-2'); return refs; } const [roundId, num] = ref === 'FINAL' ? ['FINAL', '1'] : ref.split('-'); const r = ROUND_ORDER.indexOf(roundId); if (r < 0) return refs; let i = Number(num) - 1; for (let rr = r, ii = i; rr < ROUND_ORDER.length - 1; rr += 1) { ii = Math.floor(ii / 2); refs.add(refOf(rr + 1, ii)); } const stack = [[r, i]]; while (stack.length) { const [cr, ci] = stack.pop(); if (cr === 0) continue; for (const child of [ci * 2, ci * 2 + 1]) { refs.add(refOf(cr - 1, child)); stack.push([cr - 1, child]); } } return refs; } function showPath(ref) { const canvas = document.getElementById('bracket-canvas'); clearPath(); canvas.classList.add('has-path'); for (const r of pathRefs(ref)) { const el = canvas.querySelector(`[data-ref="${r}"]`); if (!el) continue; el.classList.add('path-on'); el.closest('.bracket-slot')?.classList.add('path-on'); el.closest('.bracket-pair')?.classList.add('path-on'); } } function clearPath() { const canvas = document.getElementById('bracket-canvas'); canvas.classList.remove('has-path'); for (const el of canvas.querySelectorAll('.path-on')) el.classList.remove('path-on'); } function teamRowHTML(display, node, side) { const { result } = node; let score = ''; if (result && result.status !== 'scheduled' && node.home.teamId && node.away.teamId) { const goals = side === 'home' ? result.homeScore : result.awayScore; const pens = result.penalties ? `(${side === 'home' ? result.penalties.home : result.penalties.away})` : ''; score = `${goals}${pens}`; } else if (node.simulated && node.simScore) { score = `${node.simScore[side]}`; } const isWinner = node.winner !== null && node[side].teamId === node.winner; const flag = display.team ? `` : ''; return `
${flag} ${display.label} ${score}
`; }