brackt/app/routes/admin.sports-seasons.$id.events.$eventId.bracket.tsx
Chris Parsons 66b0235678
fix: NBA play-in bracket advancement bugs (#292)
* fix: NBA play-in advancement writes E7/W7 to wrong participant slot

advanceNBAPlayInWinner was writing the PIR1 7v8 winner to participant1Id
of First Round M3/M7, but those slots already hold E2/W2 (seeded at
generation time). The "already filled" guard fired, silently swallowing
both the winner advancement and the loser's placement into Play-In
Round 2 — so the 7/8 loser never appeared in the second play-in game.

Fix: write the 7v8 winner to participant2Id (the correct null slot) and
update the guard, doc comment, and load-bearing comment accordingly.
Also swap the p2Override arguments in the simulator and test fixture to
match the corrected slot layout (FR M3: E2=p1, E7=p2).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: hasGroupStage check for templates without groupStage property

undefined !== null is true, so templates that omit groupStage (like
nba_20) were incorrectly treated as group-stage templates, triggering
the generate-groups action and the "Invalid template or template has
no group stage" error.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-12 22:25:32 -07:00

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import { Form, Link } from "react-router";
import { Fragment, useState, useEffect, useMemo } from "react";
import { localDateTimeToUtcIso } from "~/lib/date-utils";
import type { Route } from "./+types/admin.sports-seasons.$id.events.$eventId.bracket";
import { loader, action } from "./admin.sports-seasons.$id.events.$eventId.bracket.server";
import { Button } from "~/components/ui/button";
import { Input } from "~/components/ui/input";
import { Label } from "~/components/ui/label";
import {
Card,
CardContent,
CardDescription,
CardHeader,
CardTitle,
} from "~/components/ui/card";
import {
Select,
SelectContent,
SelectItem,
SelectTrigger,
SelectValue,
} from "~/components/ui/select";
import { ArrowLeft, Plus, Trophy, X, Check, ChevronDown, ChevronRight, Calendar, TrendingUp, Trash2 } from "lucide-react";
import { getAllBracketTemplates, getBracketTemplate, getOrderedRoundsFromMatches, buildNCAA68SlotMap, ALL_16_SEEDS, type BracketRegion } from "~/lib/bracket-templates";
import { computeGroupStandings } from "~/models/group-stage-match";
import {
Table,
TableBody,
TableCell,
TableHead,
TableHeader,
TableRow,
} from "~/components/ui/table";
import { Badge } from "~/components/ui/badge";
import { ParticipantSelector } from "~/components/ParticipantSelector";
export function meta({ data }: Route.MetaArgs): Route.MetaDescriptors {
return [{ title: `Bracket — ${data?.event?.name ?? "Event"} - Brackt Admin` }];
}
export { loader, action };
export default function EventBracket({
loaderData,
actionData,
}: Route.ComponentProps) {
const { sportsSeason, event, participants, matches, tournamentGroups } = loaderData;
const [selectedTemplate, setSelectedTemplate] = useState("simple_8");
const [selectedParticipants, setSelectedParticipants] = useState<Record<number, string>>({});
const [selectedWinners, setSelectedWinners] = useState<Record<string, string>>({});
const [knockoutAssignments, setKnockoutAssignments] = useState<Record<string, string>>({});
const [expandedMatches, setExpandedMatches] = useState<Set<string>>(new Set());
const localTzAbbr = new Intl.DateTimeFormat("en-US", { timeZoneName: "short" })
.formatToParts(new Date())
.find(p => p.type === "timeZoneName")?.value ?? "local";
const toggleMatchExpanded = (matchId: string) => {
setExpandedMatches(prev => {
const next = new Set(prev);
if (next.has(matchId)) next.delete(matchId);
else next.add(matchId);
return next;
});
};
const templates = getAllBracketTemplates();
const template = templates.find((t) => t.id === selectedTemplate);
// Determine if this is a group-stage event
const hasGroupStage = template?.groupStage !== null && template?.groupStage !== undefined;
// Determine if this template uses named regions (e.g. NCAA 68)
const hasRegions = (template?.regions?.length ?? 0) > 0;
// Per-region configuration state: name + which seed slots are play-ins
// Initialized from: stored event config → template defaults → empty
const buildDefaultRegionConfig = (tmpl: typeof template) => {
const source =
(event.bracketRegionConfig as unknown as BracketRegion[] | null) ?? tmpl?.regions ?? [];
return source.map((r) => ({
name: r.name,
playInSeeds: r.playIns.map((pi) => pi.seedSlot),
}));
};
const [regionConfig, setRegionConfig] = useState(() => buildDefaultRegionConfig(template));
// Derive effective BracketRegion[] from regionConfig state
const effectiveRegions: BracketRegion[] = useMemo(() => {
return regionConfig.map((cfg) => {
const playInSet = new Set(cfg.playInSeeds);
return {
name: cfg.name,
directSeeds: ALL_16_SEEDS.filter((s) => !playInSet.has(s)),
playIns: cfg.playInSeeds.map((s) => ({ seedSlot: s, teams: 2 as const })),
};
});
}, [regionConfig]);
const regionSlotMap = useMemo(
() => (effectiveRegions.length > 0 ? buildNCAA68SlotMap(effectiveRegions) : null),
[effectiveRegions]
);
// Region config handlers
const updateRegionName = (regionIdx: number, name: string) => {
setRegionConfig((prev) =>
prev.map((r, i) => (i === regionIdx ? { ...r, name } : r))
);
};
const addPlayIn = (regionIdx: number) => {
setRegionConfig((prev) =>
prev.map((r, i) => {
if (i !== regionIdx || r.playInSeeds.length >= 2) return r;
// Default to seed 16 if no play-ins yet, otherwise seed 11
const defaultSeed = r.playInSeeds.length === 0 ? 16 : 11;
const seed = r.playInSeeds.includes(defaultSeed)
? ([11, 16].find((s) => !r.playInSeeds.includes(s)) ?? 11)
: defaultSeed;
return { ...r, playInSeeds: [...r.playInSeeds, seed] };
})
);
// Reset participant selections since slot indices change
setSelectedParticipants({});
};
const removePlayIn = (regionIdx: number, piIdx: number) => {
setRegionConfig((prev) =>
prev.map((r, i) =>
i === regionIdx
? { ...r, playInSeeds: r.playInSeeds.filter((_, j) => j !== piIdx) }
: r
)
);
setSelectedParticipants({});
};
const updatePlayInSeed = (regionIdx: number, piIdx: number, seed: number) => {
setRegionConfig((prev) =>
prev.map((r, i) =>
i === regionIdx
? {
...r,
playInSeeds: r.playInSeeds.map((s, j) => (j === piIdx ? seed : s)),
}
: r
)
);
setSelectedParticipants({});
};
const isGroupStageEvent = tournamentGroups.length > 0;
// Determine the phase for group-stage events
const knockoutPopulated = useMemo(() => {
if (!isGroupStageEvent) return false;
// Check if any Round of 32 match has participants assigned
const r32Matches = matches.filter((m) => m.round === "Round of 32");
return r32Matches.some((m) => m.participant1Id || m.participant2Id);
}, [isGroupStageEvent, matches]);
// Group stage stats
const groupStageStats = useMemo(() => {
if (!isGroupStageEvent) return null;
let eliminated = 0;
let total = 0;
for (const group of tournamentGroups) {
for (const member of group.members || []) {
total++;
if (member.eliminated) eliminated++;
}
}
return { eliminated, advancing: total - eliminated, total };
}, [isGroupStageEvent, tournamentGroups]);
// Advancing participants (non-eliminated) for knockout assignment
const advancingParticipants = useMemo(() => {
if (!isGroupStageEvent) return [];
const advancing: Array<{ id: string; name: string }> = [];
for (const group of tournamentGroups) {
for (const member of group.members || []) {
if (!member.eliminated && member.participant) {
advancing.push({
id: member.participant.id,
name: member.participant.name,
});
}
}
}
return advancing;
}, [isGroupStageEvent, tournamentGroups]);
// Available advancing participants for knockout assignment (exclude already assigned)
const availableAdvancingMap = useMemo(() => {
const assignedIds = new Set(Object.values(knockoutAssignments).filter(Boolean));
const map: Record<string, typeof advancingParticipants> = {};
// Create 32 slots (16 matches × 2 slots)
for (let m = 1; m <= 16; m++) {
for (const slot of ["participant1Id", "participant2Id"]) {
const key = `match-${m}-${slot}`;
const currentSelection = knockoutAssignments[key];
map[key] = advancingParticipants.filter(
(p) => !assignedIds.has(p.id) || p.id === currentSelection
);
}
}
return map;
}, [knockoutAssignments, advancingParticipants]);
// Clear selected winners after successful batch submission
useEffect(() => {
if (actionData?.success) {
setSelectedWinners({});
}
}, [actionData?.success]);
// Reset selected participants and region config when template changes
const handleTemplateChange = (newTemplateId: string) => {
setSelectedTemplate(newTemplateId);
setSelectedParticipants({});
const newTemplate = templates.find((t) => t.id === newTemplateId);
setRegionConfig(buildDefaultRegionConfig(newTemplate));
};
// Update selected participant for a seed
const handleParticipantChange = (seedIndex: number, participantId: string) => {
setSelectedParticipants(prev => ({
...prev,
[seedIndex]: participantId
}));
};
// Memoized available participants calculation
const availableParticipantsMap = useMemo(() => {
const selectedIdsSet = new Set(Object.values(selectedParticipants));
const map: Record<number, typeof participants> = {};
const totalSeeds = template?.totalTeams || 8;
for (let i = 0; i < totalSeeds; i++) {
const currentSelection = selectedParticipants[i];
map[i] = participants.filter((p: { id: string; name: string }) => {
return !selectedIdsSet.has(p.id) || p.id === currentSelection;
});
}
return map;
}, [selectedParticipants, participants, template?.totalTeams]);
const getAvailableParticipants = (seedIndex: number) => {
return availableParticipantsMap[seedIndex] || participants;
};
// Update selected winner for a match
const handleWinnerChange = (matchId: string, winnerId: string) => {
setSelectedWinners(prev => ({
...prev,
[matchId]: winnerId
}));
};
// Get matches with pending winner selections in a round
const getPendingWinnersInRound = (round: string) => {
return Object.entries(selectedWinners)
.filter(([matchId]) => {
const match = matches.find((m) => m.id === matchId);
return match && match.round === round && !match.isComplete;
});
};
// Memoized: Group matches by round
const matchesByRound = useMemo(() => {
const grouped: Record<string, typeof matches> = {};
for (const match of matches) {
if (!grouped[match.round]) {
grouped[match.round] = [];
}
grouped[match.round].push(match);
}
return grouped;
}, [matches]);
// Memoized: Get available rounds in chronological order
const availableRounds = useMemo(() => {
const bracketTemplate = event.bracketTemplateId ? getBracketTemplate(event.bracketTemplateId) : undefined;
return getOrderedRoundsFromMatches(matches, bracketTemplate);
}, [matches, event.bracketTemplateId]);
// Check if all matches are complete
const allMatchesComplete = useMemo(() => {
return matches.length > 0 && matches.every((m) => m.isComplete);
}, [matches]);
// No bracket and no groups yet = setup phase
const showSetup = matches.length === 0 && !isGroupStageEvent;
return (
<div className="p-8">
<div className="max-w-6xl mx-auto">
<div className="mb-6">
<Button variant="ghost" size="sm" asChild className="mb-2">
<Link to={`/admin/sports-seasons/${sportsSeason.id}/events/${event.id}`}>
<ArrowLeft className="mr-2 h-4 w-4" />
Back to Event
</Link>
</Button>
<div className="flex items-center justify-between">
<div>
<h1 className="text-3xl font-bold">Playoff Bracket</h1>
<p className="text-muted-foreground mt-1">
{event.name} - {sportsSeason.sport.name} {sportsSeason.name}
</p>
</div>
</div>
</div>
<div className="space-y-6">
{actionData?.error && (
<div className="bg-destructive/15 text-destructive px-4 py-3 rounded-md text-sm">
{actionData.error}
</div>
)}
{actionData?.success && (
<div className="bg-emerald-500/15 text-emerald-400 px-4 py-3 rounded-md text-sm">
{actionData.success}
</div>
)}
{/* Recalculate Floors - Fix guaranteed minimum points for still-alive participants.
Hidden once every match is complete — at that point all placements are final
and "finalize bracket" should be used instead. */}
{matches.length > 0 && !matches.every((m) => m.isComplete) && (
<Card>
<CardHeader>
<CardTitle>Recalculate Floors</CardTitle>
<CardDescription>
Recompute guaranteed-minimum placements for participants still in the bracket.
Use this after scoring rule changes or when floor points look wrong.
</CardDescription>
</CardHeader>
<CardContent>
<Form method="post">
<input type="hidden" name="intent" value="recalculate-floors" />
<Button type="submit" variant="outline">
Recalculate Floors
</Button>
</Form>
</CardContent>
</Card>
)}
{/* Reprocess Eliminations - For existing brackets (non-group-stage) */}
{matches.length > 0 && !isGroupStageEvent && (
<Card>
<CardHeader>
<CardTitle>Reprocess Eliminations</CardTitle>
<CardDescription>
Mark participants not in this bracket as eliminated (for brackets created before automatic elimination tracking)
</CardDescription>
</CardHeader>
<CardContent>
<Form method="post">
<input type="hidden" name="intent" value="reprocess-eliminations" />
<div className="space-y-4">
<div className="text-sm text-muted-foreground">
This will set finalPosition = 0 for all participants who are not in any playoff match,
allowing probability recalculation to set their odds to 0%.
</div>
<Button type="submit" variant="outline">
Reprocess Eliminations
</Button>
</div>
</Form>
</CardContent>
</Card>
)}
{/* ====== SETUP PHASE ====== */}
{showSetup && (
<Card>
<CardHeader>
<CardTitle>Generate Bracket</CardTitle>
<CardDescription>
Create the bracket structure for this playoff event
</CardDescription>
</CardHeader>
<CardContent>
<Form method="post" className="space-y-4">
{/* Intent depends on whether this is a group-stage template */}
<input
type="hidden"
name="intent"
value={hasGroupStage ? "generate-groups" : "generate-bracket"}
/>
<div className="space-y-2">
<Label htmlFor="templateId">Bracket Template</Label>
<Select
name="templateId"
value={selectedTemplate}
onValueChange={handleTemplateChange}
required
>
<SelectTrigger id="templateId">
<SelectValue />
</SelectTrigger>
<SelectContent>
{templates.map((t) => (
<SelectItem key={t.id} value={t.id}>
{t.name} - {t.totalTeams} teams
</SelectItem>
))}
</SelectContent>
</Select>
{template && (
<p className="text-sm text-muted-foreground">
{template.groupStage ? (
<>
Groups: {template.groupStage.groupCount} groups of {template.groupStage.teamsPerGroup}
{" | "}Knockout: {template.rounds.map(r => r.name).join(" \u2192 ")}
</>
) : (
<>Rounds: {template.rounds.map(r => r.name).join(" \u2192 ")}</>
)}
</p>
)}
</div>
{/* Group-stage template: show group assignments */}
{hasGroupStage && template?.groupStage && (
<div className="space-y-4">
<Label>Assign Participants to Groups</Label>
<p className="text-sm text-muted-foreground">
Assign {template.totalTeams} participants across {template.groupStage.groupCount} groups
({template.groupStage.teamsPerGroup} per group).
</p>
<div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
{template.groupStage.groupLabels.map((label, groupIndex) => (
<Card key={label} className="border-dashed">
<CardHeader className="py-3 px-4">
<CardTitle className="text-base">Group {label}</CardTitle>
</CardHeader>
<CardContent className="px-4 pb-4 space-y-2">
{[...Array(template.groupStage?.teamsPerGroup ?? 0)].map((_, teamIndex) => {
const seedIndex = groupIndex * (template.groupStage?.teamsPerGroup ?? 0) + teamIndex;
const availableParticipants = getAvailableParticipants(seedIndex);
return (
<div key={seedIndex}>
<input
type="hidden"
name={`participant${seedIndex}`}
value={selectedParticipants[seedIndex] || ""}
required
/>
<ParticipantSelector
participants={availableParticipants}
value={selectedParticipants[seedIndex] || ""}
onValueChange={(value) => handleParticipantChange(seedIndex, value)}
placeholder={`Team ${teamIndex + 1}...`}
/>
</div>
);
})}
</CardContent>
</Card>
))}
</div>
</div>
)}
{/* Non-group-stage template: region-grouped or flat seeded list */}
{!hasGroupStage && hasRegions && regionSlotMap && (
<div className="space-y-6">
{/* ── Region configuration ─────────────────────────────── */}
<div className="border rounded-lg p-4 space-y-3">
<div>
<h4 className="font-semibold text-sm">Configure Regions</h4>
<p className="text-xs text-muted-foreground mt-0.5">
Set each region's name and which seed slots are play-in games.
</p>
</div>
{regionConfig.map((region, r) => (
// eslint-disable-next-line react/no-array-index-key
<div key={r} className="flex flex-wrap items-center gap-2">
<Input
className="w-36 h-8 text-sm"
value={region.name}
onChange={(e) => updateRegionName(r, e.target.value)}
placeholder={`Region ${r + 1}`}
/>
{region.playInSeeds.map((seed, pi) => (
// eslint-disable-next-line react/no-array-index-key
<div key={pi} className="flex items-center gap-1">
<span className="text-xs text-muted-foreground">play-in seed:</span>
<Select
value={String(seed)}
onValueChange={(val) => updatePlayInSeed(r, pi, parseInt(val, 10))}
>
<SelectTrigger className="h-8 w-16 text-sm">
<SelectValue />
</SelectTrigger>
<SelectContent>
{ALL_16_SEEDS.map((s) => (
<SelectItem key={s} value={String(s)}>{s}</SelectItem>
))}
</SelectContent>
</Select>
<Button
type="button"
variant="ghost"
size="sm"
className="h-7 w-7 p-0 text-muted-foreground"
onClick={() => removePlayIn(r, pi)}
>
<X className="h-3 w-3" />
</Button>
</div>
))}
{region.playInSeeds.length < 2 && (
<Button
type="button"
variant="outline"
size="sm"
className="h-7 text-xs"
onClick={() => addPlayIn(r)}
>
<Plus className="h-3 w-3 mr-1" />
Add play-in
</Button>
)}
</div>
))}
{/* Hidden fields so server receives the region config */}
{regionConfig.map((region, r) => (
// eslint-disable-next-line react/no-array-index-key
<Fragment key={r}>
<input type="hidden" name={`regionName${r}`} value={region.name} />
<input type="hidden" name={`regionPlayInSeeds${r}`} value={region.playInSeeds.join(",")} />
</Fragment>
))}
</div>
{/* ── Seed entry per region ─────────────────────────────── */}
<p className="text-sm text-muted-foreground">
Select participants by region. Use search to find teams quickly.
</p>
<div className="grid grid-cols-1 md:grid-cols-2 gap-4">
{effectiveRegions.map((region, r) => {
const directOffset = regionSlotMap.directOffsets[r];
return (
// eslint-disable-next-line react/no-array-index-key
<div key={r} className="border rounded-lg p-4 space-y-2">
<h4 className="font-semibold text-sm">{region.name || `Region ${r + 1}`}</h4>
{region.directSeeds.map((seedNum, pos) => {
const globalIdx = directOffset + pos;
const opponentSeed = 17 - seedNum;
const opponentIsPlayIn = region.playIns.some((pi) => pi.seedSlot === opponentSeed);
return (
<div key={seedNum} className="flex items-center gap-2">
<Label className="w-16 text-xs text-muted-foreground shrink-0">
Seed {seedNum}
</Label>
<div className="flex-1 min-w-0">
<input
type="hidden"
name={`participant${globalIdx}`}
value={selectedParticipants[globalIdx] || ""}
required
/>
<ParticipantSelector
participants={getAvailableParticipants(globalIdx)}
value={selectedParticipants[globalIdx] || ""}
onValueChange={(value) => handleParticipantChange(globalIdx, value)}
placeholder={`Seed ${seedNum}…`}
/>
</div>
{opponentIsPlayIn && (
<span className="text-xs text-muted-foreground shrink-0">← faces play-in</span>
)}
</div>
);
})}
{region.playIns.length > 0 && (
<p className="text-xs text-muted-foreground pt-1 border-t">
{region.playIns.map((pi) => `Seed ${pi.seedSlot}`).join(" & ")} via play-in ↓
</p>
)}
</div>
);
})}
</div>
{/* ── Play-in team entry ─────────────────────────────────── */}
{regionSlotMap.playInOffsets.length > 0 && (
<div className="border rounded-lg p-4 space-y-4">
<h4 className="font-semibold text-sm">Play-In Teams</h4>
<p className="text-xs text-muted-foreground">
Enter both teams for each play-in game. The winner advances to the main bracket.
</p>
{regionSlotMap.playInOffsets.map((pi, ffIdx) => {
const regionName = effectiveRegions[pi.regionIndex]?.name || `Region ${pi.regionIndex + 1}`;
const idx1 = pi.startIndex;
const idx2 = pi.startIndex + 1;
return (
<div key={`${pi.regionIndex}-${pi.seedSlot}`} className="space-y-2">
<p className="text-xs font-medium text-muted-foreground">
Play-In {ffIdx + 1} — {regionName} {pi.seedSlot}-seed
</p>
{[idx1, idx2].map((globalIdx, slot) => (
<div key={globalIdx} className="flex items-center gap-2">
<Label className="w-16 text-xs text-muted-foreground shrink-0">
Team {slot + 1}
</Label>
<div className="flex-1 min-w-0">
<input
type="hidden"
name={`participant${globalIdx}`}
value={selectedParticipants[globalIdx] || ""}
required
/>
<ParticipantSelector
participants={getAvailableParticipants(globalIdx)}
value={selectedParticipants[globalIdx] || ""}
onValueChange={(value) => handleParticipantChange(globalIdx, value)}
placeholder={`${regionName} ${pi.seedSlot}-seed play-in team ${slot + 1}…`}
/>
</div>
</div>
))}
</div>
);
})}
</div>
)}
</div>
)}
{/* Non-group-stage, non-region template: flat seeded list */}
{!hasGroupStage && !hasRegions && (
<div className="space-y-2">
<Label>Select Participants (in order)</Label>
<p className="text-sm text-muted-foreground">
Select {template?.totalTeams || 8} participants for the bracket. Use search to quickly find participants.
</p>
{[...Array(template?.totalTeams || 8)].map((_, i) => {
const availableParticipants = getAvailableParticipants(i);
const slotLabel = template?.participantLabels?.[i] ?? `Seed ${i + 1}`;
return (
// eslint-disable-next-line react/no-array-index-key
<div key={i} className="flex items-center gap-2">
<Label className="w-20 text-sm text-muted-foreground shrink-0">
{slotLabel}
</Label>
<div className="flex-1 min-w-0">
<input
type="hidden"
name={`participant${i}`}
value={selectedParticipants[i] || ""}
required
/>
<ParticipantSelector
participants={availableParticipants}
value={selectedParticipants[i] || ""}
onValueChange={(value) => handleParticipantChange(i, value)}
placeholder={`Select ${slotLabel.toLowerCase()}...`}
/>
</div>
</div>
);
})}
</div>
)}
<Button type="submit" className="w-full">
<Plus className="mr-2 h-4 w-4" />
{hasGroupStage ? "Generate Groups & Bracket" : "Generate Bracket"}
</Button>
</Form>
</CardContent>
</Card>
)}
{/* ====== GROUP STAGE MANAGEMENT (Phase 2) ====== */}
{isGroupStageEvent && !knockoutPopulated && (
<>
{/* Group Stage Summary */}
{groupStageStats && (
<Card>
<CardHeader>
<CardTitle>Group Stage</CardTitle>
<CardDescription>
Manage group stage eliminations. Mark teams as eliminated, then assign advancing teams to the knockout bracket.
</CardDescription>
</CardHeader>
<CardContent>
<div className="flex gap-4 text-sm">
<Badge variant="secondary">
{groupStageStats.total} total teams
</Badge>
<Badge variant="destructive">
{groupStageStats.eliminated} eliminated
</Badge>
<Badge variant="default">
{groupStageStats.advancing} advancing
</Badge>
</div>
</CardContent>
</Card>
)}
{/* Group Cards */}
<div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-4">
{tournamentGroups.map((group) => {
const members = group.members || [];
const groupMatches = group.groupMatches || [];
const standings = computeGroupStandings(
members
.filter((m) => m.participant !== null && m.participant !== undefined)
.map((m) => ({
participantId: m.participant?.id ?? "",
participantName: m.participant?.name ?? "",
})),
groupMatches.map((m) => ({
participant1Id: m.participant1Id,
participant2Id: m.participant2Id,
participant1Score: m.participant1Score,
participant2Score: m.participant2Score,
isComplete: m.isComplete,
}))
);
return (
<Card key={group.id}>
<CardHeader className="py-3 px-4">
<CardTitle className="text-base">Group {group.groupName}</CardTitle>
</CardHeader>
<CardContent className="px-4 pb-4 space-y-3">
{/* Standings table */}
{standings.length > 0 && (
<div className="overflow-x-auto">
<table className="w-full text-xs">
<thead>
<tr className="border-b text-muted-foreground">
<th className="text-left pb-1 font-medium">Team</th>
<th className="text-center pb-1 font-medium w-6">P</th>
<th className="text-center pb-1 font-medium w-6">W</th>
<th className="text-center pb-1 font-medium w-6">D</th>
<th className="text-center pb-1 font-medium w-6">L</th>
<th className="text-center pb-1 font-medium w-8">GD</th>
<th className="text-center pb-1 font-medium w-7">Pts</th>
</tr>
</thead>
<tbody>
{standings.map((row, idx) => {
const member = members.find((m) => m.participant?.id === row.participantId);
const isTop2 = idx < 2;
return (
<tr
key={row.participantId}
className={`border-b last:border-0 ${
member?.eliminated
? "text-muted-foreground line-through"
: isTop2
? "text-green-600 dark:text-green-400 font-medium"
: ""
}`}
>
<td className="py-0.5 truncate max-w-[80px]">{row.participantName}</td>
<td className="text-center">{row.played}</td>
<td className="text-center">{row.wins}</td>
<td className="text-center">{row.draws}</td>
<td className="text-center">{row.losses}</td>
<td className="text-center">{row.gd > 0 ? `+${row.gd}` : row.gd}</td>
<td className="text-center font-semibold">{row.points}</td>
</tr>
);
})}
</tbody>
</table>
</div>
)}
{/* Elimination toggles */}
<div className="space-y-1.5">
{members.map((member) => (
<div
key={member.id}
className={`flex items-center justify-between gap-2 p-2 rounded-md border ${
member.eliminated
? "bg-destructive/10 border-destructive/20"
: "bg-background border-border"
}`}
>
<span
className={`text-sm truncate ${
member.eliminated ? "line-through text-muted-foreground" : ""
}`}
>
{member.participant?.name || "Unknown"}
</span>
<Form method="post" className="shrink-0">
<input type="hidden" name="intent" value="toggle-elimination" />
<input type="hidden" name="memberId" value={member.id} />
<Button
type="submit"
size="sm"
variant={member.eliminated ? "outline" : "destructive"}
className="h-7 text-xs"
>
{member.eliminated ? (
<>
<Check className="h-3 w-3 mr-1" />
Reinstate
</>
) : (
<>
<X className="h-3 w-3 mr-1" />
Eliminate
</>
)}
</Button>
</Form>
</div>
))}
</div>
{/* Match score entry */}
{groupMatches.length > 0 && (
<div className="space-y-1.5 pt-1 border-t">
<p className="text-xs font-medium text-muted-foreground">Matches</p>
{groupMatches.map((match) => (
<div key={match.id} className="text-xs space-y-1">
{/* Schedule row */}
<Form method="post" className="flex items-center gap-1">
<input type="hidden" name="intent" value="update-group-match-schedule" />
<input type="hidden" name="matchId" value={match.id} />
<Calendar className="h-3 w-3 text-muted-foreground shrink-0" />
<Input
type="datetime-local"
name="scheduledAt"
defaultValue={
match.scheduledAt
? new Date(match.scheduledAt).toISOString().slice(0, 16)
: ""
}
className="h-6 text-xs px-1 py-0"
/>
<Button type="submit" size="sm" variant="ghost" className="h-6 px-1.5 text-xs">
Save
</Button>
</Form>
{/* Score row */}
<Form method="post" className="flex items-center gap-1">
<input type="hidden" name="intent" value="update-group-match" />
<input type="hidden" name="matchId" value={match.id} />
<span className="truncate max-w-[70px]">
{match.participant1?.name ?? "?"}
</span>
<Input
type="number"
name="participant1Score"
min={0}
defaultValue={match.participant1Score ?? ""}
className={`h-6 w-10 text-center text-xs px-1 py-0 ${match.isComplete ? "bg-muted" : ""}`}
disabled={match.isComplete}
/>
<span className="text-muted-foreground"></span>
<Input
type="number"
name="participant2Score"
min={0}
defaultValue={match.participant2Score ?? ""}
className={`h-6 w-10 text-center text-xs px-1 py-0 ${match.isComplete ? "bg-muted" : ""}`}
disabled={match.isComplete}
/>
<span className="truncate max-w-[70px] text-right">
{match.participant2?.name ?? "?"}
</span>
{!match.isComplete && (
<Button type="submit" size="sm" variant="default" className="h-6 px-1.5 text-xs shrink-0">
Save
</Button>
)}
{match.isComplete && (
<Badge variant="secondary" className="h-5 text-xs px-1 shrink-0">FT</Badge>
)}
</Form>
</div>
))}
</div>
)}
</CardContent>
</Card>
);
})}
</div>
{/* Knockout Assignment Section */}
{groupStageStats && groupStageStats.advancing === 32 && (
<Card className="border-blue-500">
<CardHeader>
<CardTitle>Assign Knockout Bracket</CardTitle>
<CardDescription>
32 teams are advancing. Assign them to the Round of 32 knockout bracket slots.
</CardDescription>
</CardHeader>
<CardContent>
<Form method="post" className="space-y-4">
<input type="hidden" name="intent" value="populate-knockout" />
<div className="grid grid-cols-1 md:grid-cols-2 gap-4">
{[...Array(16)].map((_, matchIndex) => {
const matchNum = matchIndex + 1;
const key1 = `match-${matchNum}-participant1Id`;
const key2 = `match-${matchNum}-participant2Id`;
return (
<Card key={matchNum} className="border-dashed">
<CardContent className="p-4 space-y-2">
<div className="text-sm font-semibold text-muted-foreground">
Match {matchNum}
</div>
<input
type="hidden"
name={key1}
value={knockoutAssignments[key1] || ""}
required
/>
<ParticipantSelector
participants={availableAdvancingMap[key1] || []}
value={knockoutAssignments[key1] || ""}
onValueChange={(value) =>
setKnockoutAssignments((prev) => ({ ...prev, [key1]: value }))
}
placeholder="Team 1..."
/>
<div className="text-center text-xs text-muted-foreground">vs</div>
<input
type="hidden"
name={key2}
value={knockoutAssignments[key2] || ""}
required
/>
<ParticipantSelector
participants={availableAdvancingMap[key2] || []}
value={knockoutAssignments[key2] || ""}
onValueChange={(value) =>
setKnockoutAssignments((prev) => ({ ...prev, [key2]: value }))
}
placeholder="Team 2..."
/>
</CardContent>
</Card>
);
})}
</div>
<Button type="submit" className="w-full">
Populate Knockout Bracket
</Button>
</Form>
</CardContent>
</Card>
)}
{groupStageStats && groupStageStats.advancing !== 32 && groupStageStats.eliminated > 0 && (
<Card>
<CardContent className="pt-6">
<p className="text-sm text-muted-foreground">
{groupStageStats.advancing} teams advancing (need exactly 32 to populate knockout bracket).
{groupStageStats.advancing > 32 && ` Eliminate ${groupStageStats.advancing - 32} more.`}
{groupStageStats.advancing < 32 && ` Reinstate ${32 - groupStageStats.advancing} teams or adjust eliminations.`}
</p>
</CardContent>
</Card>
)}
</>
)}
{/* ====== KNOCKOUT BRACKET DISPLAY (Phase 3) ====== */}
{/* Show bracket rounds when: non-group event with matches, OR group event with knockout populated */}
{((matches.length > 0 && !isGroupStageEvent) || knockoutPopulated) && (
<>
{availableRounds.map((round: string) => (
<Card key={round}>
<CardHeader>
<CardTitle>{round}</CardTitle>
<CardDescription>
{matchesByRound[round].length} {matchesByRound[round].length === 1 ? "match" : "matches"}
</CardDescription>
</CardHeader>
<CardContent>
<Table>
<TableHeader>
<TableRow>
<TableHead className="w-8" />
<TableHead className="w-16">Match</TableHead>
<TableHead>Participant 1</TableHead>
<TableHead>Score</TableHead>
<TableHead className="w-24 text-center">vs</TableHead>
<TableHead>Score</TableHead>
<TableHead>Participant 2</TableHead>
<TableHead>Winner</TableHead>
<TableHead className="w-32">Actions</TableHead>
</TableRow>
</TableHeader>
<TableBody>
{matchesByRound[round].map((match) => (
<Fragment key={match.id}>
<TableRow>
<TableCell className="w-8 p-1">
<button
type="button"
onClick={() => toggleMatchExpanded(match.id)}
className="text-muted-foreground hover:text-foreground"
aria-label="Toggle games and odds"
>
{expandedMatches.has(match.id)
? <ChevronDown className="h-4 w-4" />
: <ChevronRight className="h-4 w-4" />}
</button>
</TableCell>
<TableCell className="font-semibold">
{match.matchNumber}
</TableCell>
<TableCell>
{match.participant1?.name || "TBD"}
</TableCell>
<TableCell>
{match.participant1Score ? parseFloat(match.participant1Score) : "-"}
</TableCell>
<TableCell className="text-center text-muted-foreground">
vs
</TableCell>
<TableCell>
{match.participant2Score ? parseFloat(match.participant2Score) : "-"}
</TableCell>
<TableCell>
{match.participant2?.name || "TBD"}
</TableCell>
<TableCell>
{match.winner?.name ? (
<div className="flex items-center gap-1">
<Trophy className="h-4 w-4 text-yellow-500" />
{match.winner.name}
</div>
) : (
"-"
)}
</TableCell>
<TableCell>
{!match.isComplete && match.participant1Id && match.participant2Id ? (
<Select
value={selectedWinners[match.id] || ""}
onValueChange={(value) => handleWinnerChange(match.id, value)}
>
<SelectTrigger className="h-8 w-full">
<SelectValue placeholder="Select winner" />
</SelectTrigger>
<SelectContent>
<SelectItem value={match.participant1Id}>
{match.participant1?.name}
</SelectItem>
<SelectItem value={match.participant2Id}>
{match.participant2?.name}
</SelectItem>
</SelectContent>
</Select>
) : match.isComplete ? (
<span className="text-sm text-muted-foreground">Complete</span>
) : (
<span className="text-sm text-muted-foreground">Waiting</span>
)}
</TableCell>
</TableRow>
{/* Expanded: Games & Odds panel */}
{expandedMatches.has(match.id) && (
<TableRow className="bg-muted/30">
<TableCell colSpan={9} className="p-4">
<div className="grid grid-cols-1 md:grid-cols-2 gap-6">
{/* Games section */}
<div>
<div className="flex items-center gap-2 mb-3">
<Calendar className="h-4 w-4 text-muted-foreground" />
<span className="text-sm font-semibold">Game Schedule</span>
</div>
{/* Existing games */}
{match.games?.length > 0 ? (
<div className="space-y-2 mb-3">
{match.games.map((game) => (
<div key={game.id} className="flex items-center gap-2 text-sm bg-background rounded p-2 border">
<span className="font-medium w-12 shrink-0">Game {game.gameNumber}</span>
<span className="text-muted-foreground flex-1">
{game.scheduledAt
? new Date(game.scheduledAt).toLocaleString()
: "No date set"}
</span>
<Badge variant={
game.status === "complete" ? "default"
: game.status === "postponed" ? "destructive"
: "secondary"
} className="text-xs">
{game.status}
</Badge>
{game.status === "complete" && game.winner && (
<span className="text-xs text-muted-foreground">
W: {game.winner.name}
</span>
)}
<Form method="post" className="shrink-0">
<input type="hidden" name="intent" value="delete-game" />
<input type="hidden" name="gameId" value={game.id} />
<button type="submit" className="text-muted-foreground hover:text-destructive">
<Trash2 className="h-3.5 w-3.5" />
</button>
</Form>
</div>
))}
</div>
) : (
<p className="text-xs text-muted-foreground mb-3">No games scheduled yet.</p>
)}
{/* Add game form */}
<Form method="post" className="flex gap-2 items-end" onSubmit={(e) => {
const form = e.currentTarget;
// Read from the datetime-local display input (not submitted directly)
const scheduledAtLocal = form.elements.namedItem("scheduledAtLocal") as HTMLInputElement;
// Write the UTC ISO string into the hidden input that IS submitted
const scheduledAtHidden = form.elements.namedItem("scheduledAt") as HTMLInputElement;
if (scheduledAtHidden) {
scheduledAtHidden.value = localDateTimeToUtcIso(scheduledAtLocal?.value) ?? "";
}
}}>
<input type="hidden" name="intent" value="add-game" />
<input type="hidden" name="matchId" value={match.id} />
{/* Hidden field holds the UTC ISO string written by onSubmit */}
<input type="hidden" name="scheduledAt" defaultValue="" />
<div className="flex-1">
<Label className="text-xs">Game #</Label>
<Input
name="gameNumber"
type="number"
min={1}
max={9}
defaultValue={(match.games?.length ?? 0) + 1}
className="h-8 w-20"
required
/>
</div>
<div className="flex-1">
<Label className="text-xs">Date &amp; Time ({localTzAbbr})</Label>
<Input
name="scheduledAtLocal"
type="datetime-local"
className="h-8"
/>
</div>
<Button type="submit" size="sm" variant="outline" className="h-8">
<Plus className="h-3.5 w-3.5 mr-1" />
Add
</Button>
</Form>
</div>
{/* Odds section */}
<div>
<div className="flex items-center gap-2 mb-3">
<TrendingUp className="h-4 w-4 text-muted-foreground" />
<span className="text-sm font-semibold">Moneyline Odds</span>
</div>
{match.odds?.length > 0 ? (
<div className="space-y-2 mb-3">
{match.odds.map((odd) => (
<div key={odd.id} className="flex items-center gap-2 text-sm bg-background rounded p-2 border">
<span className="flex-1 font-medium">{odd.participant?.name}</span>
<span className={`font-mono ${odd.moneylineOdds > 0 ? "text-emerald-500" : "text-muted-foreground"}`}>
{odd.moneylineOdds > 0 ? "+" : ""}{odd.moneylineOdds}
</span>
<span className="text-xs text-muted-foreground">
({(parseFloat(odd.impliedProbability) * 100).toFixed(1)}%)
</span>
{odd.oddsSource && (
<span className="text-xs text-muted-foreground">{odd.oddsSource}</span>
)}
<Form method="post" className="shrink-0">
<input type="hidden" name="intent" value="delete-odds" />
<input type="hidden" name="matchId" value={match.id} />
<input type="hidden" name="participantId" value={odd.participantId} />
<button type="submit" className="text-muted-foreground hover:text-destructive">
<Trash2 className="h-3.5 w-3.5" />
</button>
</Form>
</div>
))}
</div>
) : (
<p className="text-xs text-muted-foreground mb-3">No odds set.</p>
)}
{/* Set odds forms for each participant */}
{[
{ id: match.participant1Id, name: match.participant1?.name },
{ id: match.participant2Id, name: match.participant2?.name },
].filter(p => p.id).map(participant => (
<Form key={participant.id} method="post" className="flex gap-2 items-end mb-2">
<input type="hidden" name="intent" value="upsert-odds" />
<input type="hidden" name="matchId" value={match.id} />
<input type="hidden" name="participantId" value={participant.id ?? ""} />
<div className="flex-1">
<Label className="text-xs">{participant.name ?? "TBD"}</Label>
<Input
name="moneylineOdds"
type="number"
placeholder="-110"
className="h-8"
required
/>
</div>
<div className="flex-1">
<Label className="text-xs">Source</Label>
<Input
name="oddsSource"
placeholder="e.g. DraftKings"
className="h-8"
/>
</div>
<Button type="submit" size="sm" variant="outline" className="h-8">
Set
</Button>
</Form>
))}
</div>
</div>
</TableCell>
</TableRow>
)}
</Fragment>
))}
</TableBody>
</Table>
{/* Batch Submit Winners */}
{getPendingWinnersInRound(round).length > 0 && (
<Form method="post" className="mt-4">
<input type="hidden" name="intent" value="set-round-winners" />
<input type="hidden" name="round" value={round} />
{getPendingWinnersInRound(round).map(([matchId, winnerId]) => (
<input key={matchId} type="hidden" name={`winner-${matchId}`} value={winnerId} />
))}
<Button type="submit" className="w-full">
Save {getPendingWinnersInRound(round).length} Winner{getPendingWinnersInRound(round).length > 1 ? 's' : ''} for {round}
</Button>
</Form>
)}
</CardContent>
</Card>
))}
{/* Finalize Bracket Button */}
{allMatchesComplete && !event.isComplete && (
<Card className="border-emerald-500/30 bg-emerald-500/10">
<CardHeader>
<CardTitle className="flex items-center gap-2">
<Trophy className="h-5 w-5 text-emerald-400" />
Finalize Bracket
</CardTitle>
<CardDescription>
All matches are complete! Process all rounds and assign final placements.
</CardDescription>
</CardHeader>
<CardContent>
<Form method="post">
<input type="hidden" name="intent" value="finalize-bracket" />
<div className="space-y-4">
<div className="text-sm space-y-2">
<p className="font-medium">This will:</p>
<ul className="list-disc list-inside space-y-1 text-muted-foreground">
<li>Process all playoff rounds in order</li>
<li>Assign fantasy placements (1st-8th) based on bracket results</li>
<li>Assign 0 points to participants not in the bracket</li>
<li>Mark the event as complete</li>
<li>Recalculate all team standings</li>
</ul>
</div>
<Button type="submit" className="w-full">
Finalize Bracket & Update Standings
</Button>
</div>
</Form>
</CardContent>
</Card>
)}
</>
)}
{/* Event Complete Badge */}
{event.isComplete && (
<Card className="border-electric/30 bg-electric/10">
<CardContent className="pt-6">
<div className="flex items-center gap-2 text-electric">
<Trophy className="h-5 w-5" />
<span className="font-semibold">Event Complete</span>
<span className="text-sm text-muted-foreground ml-auto">
{event.completedAt && new Date(event.completedAt).toLocaleDateString()}
</span>
</div>
</CardContent>
</Card>
)}
</div>
</div>
</div>
);
}