rudder
53 lines
1.4 KiB
TypeScript
53 lines
1.4 KiB
TypeScript
import type { RudderContext } from '../core/context.js';
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import { api } from '../generated/api.js';
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import type { RankEntry } from '../generated/leaderboards.js';
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/**
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* A cached handle for a specific leaderboard.
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*
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* Created by `LeaderboardsService.findBySlug()` — subsequent calls with
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* the same slug return the same handle, avoiding redundant fetches.
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*/
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export class LeaderboardHandle {
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private entries: RankEntry[] = [];
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constructor(
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public readonly slug: string,
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private readonly ctx: RudderContext,
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) {}
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getEntries(): readonly RankEntry[] {
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return this.entries;
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}
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async submit(score: number): Promise<void> {
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return api.submitScore(this.ctx, { slug: this.slug }, { slug: this.slug, score });
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}
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async list(limit = 100): Promise<readonly RankEntry[]> {
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const response = await api.getRanking(
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this.ctx,
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{ slug: this.slug },
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{ limit: limit > 0 ? limit : undefined },
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);
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this.entries = response.entries ?? [];
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return this.entries;
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}
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}
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export class LeaderboardsService {
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private readonly cache = new Map<string, LeaderboardHandle>();
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constructor(private readonly ctx: RudderContext) {}
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/** Returns a cached handle for the given leaderboard slug. */
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findBySlug(slug: string): LeaderboardHandle {
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let handle = this.cache.get(slug);
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if (!handle) {
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handle = new LeaderboardHandle(slug, this.ctx);
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this.cache.set(slug, handle);
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}
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return handle;
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}
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}
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