rename to core

core/racing/application/use-cases/GetLeagueStandingsUseCase.ts

@@ -0,0 +1,34 @@
+import type { IStandingRepository } from '../../domain/repositories/IStandingRepository';
+import type {
+  ILeagueStandingsPresenter,
+  LeagueStandingsResultDTO,
+  LeagueStandingsViewModel,
+} from '../presenters/ILeagueStandingsPresenter';
+import type { UseCase } from '@gridpilot/shared/application/UseCase';
+
+export interface GetLeagueStandingsUseCaseParams {
+  leagueId: string;
+}
+
+/**
+ * Use Case for retrieving league standings.
+ * Orchestrates domain logic and delegates presentation to the presenter.
+ */
+export class GetLeagueStandingsUseCase
+  implements
+    UseCase<GetLeagueStandingsUseCaseParams, LeagueStandingsResultDTO, LeagueStandingsViewModel, ILeagueStandingsPresenter>
+{
+  constructor(private readonly standingRepository: IStandingRepository) {}
+
+  async execute(
+    params: GetLeagueStandingsUseCaseParams,
+    presenter: ILeagueStandingsPresenter,
+  ): Promise<void> {
+    const standings = await this.standingRepository.findByLeagueId(params.leagueId);
+    const dto: LeagueStandingsResultDTO = {
+      standings,
+    };
+    presenter.reset();
+    presenter.present(dto);
+  }
+}