brackt/app/routes/leagues/$leagueId.sports-seasons.$sportsSeasonId.tsx
Chris Parsons 2e2d8db777
Add MLB playoff simulator with AL/NL division standings, fixes #121 (#225)
* Add MLB playoff simulator with AL/NL division standings, fixes #121

- New `mlb-simulator.ts`: 50k Monte Carlo sim drawing division winners
  (weighted by p_div) and 3 WC teams per league, then simulating
  WC best-of-3 → DS best-of-5 → LCS best-of-7 → World Series.
  Elo parity factor 350; blends Vegas odds 30/70 when sourceOdds available.
- New `standings-sync/mlb.ts`: adapter for free statsapi.mlb.com API,
  mapping AL/NL conferences, division ranks, streaks, home/away/L10 splits.
- New `mlb-divisions` display mode in RegularSeasonStandings: shows 1 division
  winner per division section + Wild Card section with 3-spot playoff line,
  headings read "AL/NL League" instead of "Conference".
- Refactored buildNhlSections/buildMlbSections into shared buildDivisionSections
  (divisionSpots + wcSpots params); conferenceLabel now flows through group
  objects rather than being derived from displayMode in the render.
- DB migration 0062 adds `mlb_bracket` to simulator_type enum.
- 37 new tests across simulator, adapter, and component.

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

* Fix flaky tennis simulator test: increase trials and lower threshold

500 trials with a ~3–5% expected win rate had enough variance to
occasionally land below the 0.03 threshold (~2% failure rate).
Bumping to 2000 trials reduces the std dev by 2x; lowering the
threshold to 0.02 keeps the assertion meaningful (still well above
random 0.78%) while eliminating the flakiness.

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

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-25 08:47:02 -07:00

186 lines
6.6 KiB
TypeScript

import { Link } from "react-router";
import type { Route } from "./+types/$leagueId.sports-seasons.$sportsSeasonId";
import { loader } from "./$leagueId.sports-seasons.$sportsSeasonId.server";
import { SportSeasonDisplay } from "~/components/scoring/SportSeasonDisplay";
import { EventSchedule } from "~/components/sport-season/EventSchedule";
import { RegularSeasonStandings } from "~/components/sport-season/RegularSeasonStandings";
import { Button } from "~/components/ui/button";
import { Badge } from "~/components/ui/badge";
import { ArrowLeft, CheckCircle2, Clock, Zap } from "lucide-react";
export function meta({ data }: Route.MetaArgs): Route.MetaDescriptors {
return [{ title: `${data?.sportsSeason?.name ?? "Sport Season"}${data?.league?.name ?? "League"} - Brackt` }];
}
export { loader };
function getStatusBadge(status: string) {
switch (status) {
case "active":
return (
<Badge variant="outline" className="bg-emerald-500/15 text-emerald-400 border-emerald-500/30">
<Zap className="mr-1 h-3 w-3" />
Active
</Badge>
);
case "upcoming":
return (
<Badge variant="outline" className="bg-electric/15 text-electric border-electric/30">
<Clock className="mr-1 h-3 w-3" />
Upcoming
</Badge>
);
case "completed":
return (
<Badge variant="outline" className="bg-muted text-muted-foreground border-border">
<CheckCircle2 className="mr-1 h-3 w-3" />
Completed
</Badge>
);
default:
return null;
}
}
export default function SportSeasonDetail({
loaderData,
}: Route.ComponentProps) {
const {
league,
season,
sportsSeason,
scoringPattern,
playoffMatches,
playoffRounds,
preEliminatedParticipants,
participantPoints,
partialScoreParticipantIds,
seasonStandings,
qpStandings,
teamOwnerships,
userParticipantIds,
upcomingEvents,
recentEvents,
seasonIsFinalized,
regularSeasonStandings,
participantEvs,
} = loaderData;
const hasBracket = playoffMatches && playoffMatches.length > 0;
const hasStandings = regularSeasonStandings && regularSeasonStandings.length > 0;
const showOtLosses = hasStandings && regularSeasonStandings.some((s) => s.otLosses !== null);
const simulatorType = sportsSeason.sport?.simulatorType;
const standingsDisplayMode =
simulatorType === "nhl_bracket" ? "nhl-divisions" :
simulatorType === "mlb_bracket" ? "mlb-divisions" :
"flat";
// NBA: 10 teams make the postseason (6 auto-qualify + 4 play-in)
// AFL: top 10 advance to the finals series (Wildcard + QF/EF + SF + PF + GF)
// NHL: handled by nhl-divisions mode (3 per div + 2 wild cards)
// MLB: handled by mlb-divisions mode (1 per div + 3 wild cards)
const playoffSpots =
simulatorType === "nba_bracket" || simulatorType === "afl_bracket" ? 10 : 8;
// Build ownership map for RegularSeasonStandings
const ownershipMap = Object.fromEntries(
teamOwnerships.map((o) => [
o.participantId,
{ teamName: o.teamName, ownerName: o.ownerName ?? "", teamId: o.teamId },
])
);
return (
<div className="container mx-auto py-8 px-4">
<div className="mb-6">
<Button variant="ghost" size="sm" asChild className="mb-4">
<Link to={`/leagues/${league.id}`}>
<ArrowLeft className="mr-2 h-4 w-4" />
Back to League
</Link>
</Button>
<div className="flex items-start justify-between gap-4 mb-4">
<div>
<h1 className="text-3xl font-bold mb-1">
{sportsSeason.sport.name}
</h1>
<p className="text-muted-foreground">
{sportsSeason.name} {league.name} {season.year} Season
</p>
</div>
{getStatusBadge(sportsSeason.status)}
</div>
</div>
{/* Regular season standings — show above bracket when no bracket exists yet */}
{hasStandings && !hasBracket && (
<div className="mb-6">
<RegularSeasonStandings
standings={regularSeasonStandings}
teamOwnerships={ownershipMap}
userParticipantIds={userParticipantIds}
showOtLosses={showOtLosses}
participantEvs={participantEvs}
displayMode={standingsDisplayMode as "flat" | "nhl-divisions" | "mlb-divisions"}
playoffSpots={playoffSpots}
/>
</div>
)}
{/* Event schedule - hidden for bracket sports (the bracket itself is the event) */}
{scoringPattern !== "playoff_bracket" &&
(upcomingEvents.length > 0 || recentEvents.length > 0) && (
<div className="mb-6">
<EventSchedule
upcomingEvents={upcomingEvents}
recentEvents={recentEvents}
/>
</div>
)}
{/* Hide bracket display when standings exist but no bracket matches have been set yet */}
{!(scoringPattern === "playoff_bracket" && hasStandings && !hasBracket) && <SportSeasonDisplay
scoringPattern={scoringPattern as "playoff_bracket" | "season_standings" | "qualifying_points"}
sportSeasonName={sportsSeason.name}
sportName={sportsSeason.sport.name}
playoffMatches={playoffMatches}
playoffRounds={playoffRounds}
preEliminatedParticipants={preEliminatedParticipants}
participantPoints={participantPoints}
partialScoreParticipantIds={partialScoreParticipantIds}
seasonStandings={seasonStandings}
seasonIsFinalized={seasonIsFinalized}
qpStandings={qpStandings}
qpIsFinalized={sportsSeason.qualifyingPointsFinalized || false}
totalMajors={sportsSeason.totalMajors}
majorsCompleted={sportsSeason.majorsCompleted || 0}
canFinalize={
(sportsSeason.majorsCompleted || 0) >=
(sportsSeason.totalMajors || 0) &&
!sportsSeason.qualifyingPointsFinalized
}
teamOwnerships={teamOwnerships}
userParticipantIds={userParticipantIds}
scoringRules={season}
showOwnership={true}
/>}
{/* Regular season standings — show below bracket once bracket exists */}
{hasStandings && hasBracket && (
<div className="mt-8">
<RegularSeasonStandings
standings={regularSeasonStandings}
teamOwnerships={ownershipMap}
userParticipantIds={userParticipantIds}
showOtLosses={showOtLosses}
participantEvs={participantEvs}
displayMode={standingsDisplayMode as "flat" | "nhl-divisions" | "mlb-divisions"}
playoffSpots={playoffSpots}
/>
</div>
)}
</div>
);
}