c1be92b2af
Monte Carlo simulation of the 2026 AFL season and 10-team finals series. Elo ratings are backsolved from Squiggle's projected season win totals using the inverse formula: elo = 1500 - 450×log₁₀((1−wins/23)/(wins/23)). - New `afl_bracket` simulator type (schema + migration) - `afl-simulator.ts`: projects remaining regular season via Elo, seeds the AFL_10 finals bracket (Wildcard → QF/EF → SF → PF → Grand Final), and correctly tracks P5/P6 and P7/P8 as separate scoring tiers - `afl.ts` standings sync adapter pulling from Squiggle API (no auth required) - Finals line on standings display set to 10 for AFL seasons - Substring name matching with longest-key-wins to prevent "Port Adelaide" colliding with "Adelaide" when matching "Port Adelaide Power" - 27 unit tests covering bracket logic, column-sum guarantees, and name matching Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
67 lines
2.4 KiB
TypeScript
67 lines
2.4 KiB
TypeScript
import type { FetchedStandingsRecord, StandingsSyncAdapter } from "./types";
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const AFL_STANDINGS_URL = "https://api.squiggle.com.au/?q=standings;year=2026;format=json";
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/**
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* Squiggle API response shape for a single team's ladder entry.
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* Docs: https://api.squiggle.com.au/
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*/
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interface SquiggleStandingsEntry {
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id: number; // Squiggle team ID (1–18)
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name: string; // Full team name, e.g. "Western Bulldogs"
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wins: number;
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losses: number;
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draws: number;
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played: number; // Games played
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for: number; // Points scored for
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against: number; // Points scored against
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percentage: number;// (for / (for + against)) * 100
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pts: number; // Ladder points (4=win, 2=draw, 0=loss)
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rank: number; // Current ladder position (1-based)
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}
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interface SquiggleStandingsResponse {
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standings: SquiggleStandingsEntry[];
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}
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export class AflStandingsAdapter implements StandingsSyncAdapter {
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async fetchStandings(): Promise<FetchedStandingsRecord[]> {
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const response = await fetch(AFL_STANDINGS_URL, {
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headers: {
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// Squiggle asks all clients to identify themselves for rate-limit contact.
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// Set SQUIGGLE_CONTACT_EMAIL in your environment to identify this client.
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"User-Agent": `Brackt.com AFL standings sync - ${process.env.SQUIGGLE_CONTACT_EMAIL ?? "admin@brackt.com"}`,
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},
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});
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if (!response.ok) {
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throw new Error(
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`AFL Squiggle standings API returned ${response.status}: ${response.statusText}`
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);
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}
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const json = (await response.json()) as SquiggleStandingsResponse;
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const entries = json.standings;
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if (!entries || entries.length === 0) {
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throw new Error(
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"AFL Squiggle standings API returned no entries — response shape may have changed"
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);
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}
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// Squiggle already includes `rank` (ladder position), sorted by ladder position.
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// Sort ascending by rank so leagueRank matches the AFL ladder order.
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const sorted = [...entries].sort((a, b) => a.rank - b.rank);
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return sorted.map((entry): FetchedStandingsRecord => ({
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teamName: entry.name,
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externalTeamId: String(entry.id),
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wins: entry.wins,
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losses: entry.losses,
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ties: entry.draws, // AFL draws are stored in the `ties` column
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winPct: entry.percentage / 100, // Squiggle returns e.g. 62.5; store as 0.625
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gamesPlayed: entry.played,
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leagueRank: entry.rank,
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}));
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}
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}
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