92 lines
2.5 KiB
TypeScript
92 lines
2.5 KiB
TypeScript
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import type { FetchedStandingsRecord, StandingsSyncAdapter } from "./types";
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const EPL_STANDINGS_URL = "https://api.football-data.org/v4/competitions/PL/standings";
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interface FootballDataTeam {
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id: number;
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name: string;
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shortName?: string;
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tla?: string;
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}
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interface FootballDataTableEntry {
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position: number;
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team: FootballDataTeam;
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playedGames: number;
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form?: string | null;
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won: number;
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draw: number;
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lost: number;
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points: number;
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goalsFor: number;
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goalsAgainst: number;
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goalDifference: number;
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}
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interface FootballDataStanding {
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type: "TOTAL" | "HOME" | "AWAY" | string;
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table: FootballDataTableEntry[];
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}
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interface FootballDataStandingsResponse {
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standings: FootballDataStanding[];
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}
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/**
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* English Premier League standings adapter backed by football-data.org.
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*
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* Endpoint: GET /v4/competitions/PL/standings
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* Required env var: FOOTBALL_DATA_API_KEY
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*/
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export class EplStandingsAdapter implements StandingsSyncAdapter {
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constructor(private readonly apiKey = process.env.FOOTBALL_DATA_API_KEY) {}
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async fetchStandings(): Promise<FetchedStandingsRecord[]> {
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if (!this.apiKey) {
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throw new Error(
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"FOOTBALL_DATA_API_KEY is required to sync EPL standings from football-data.org."
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);
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}
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const response = await fetch(EPL_STANDINGS_URL, {
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headers: {
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"X-Auth-Token": this.apiKey,
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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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`football-data.org EPL 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 FootballDataStandingsResponse;
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const total = json.standings?.find((standing) => standing.type === "TOTAL");
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const table = total?.table ?? [];
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if (table.length === 0) {
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throw new Error(
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"football-data.org EPL standings API returned no TOTAL table entries — response shape may have changed"
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);
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}
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return table
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.toSorted((a, b) => a.position - b.position)
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.map((entry): FetchedStandingsRecord => ({
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teamName: entry.team.name,
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externalTeamId: String(entry.team.id),
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wins: entry.won,
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losses: entry.lost,
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ties: entry.draw,
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tablePoints: entry.points,
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goalsFor: entry.goalsFor,
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goalsAgainst: entry.goalsAgainst,
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goalDifference: entry.goalDifference,
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winPct: entry.playedGames > 0 ? entry.won / entry.playedGames : 0,
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gamesPlayed: entry.playedGames,
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leagueRank: entry.position,
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lastTen: entry.form ?? undefined,
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}));
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}
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}
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