refactor use cases

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

@@ -1,42 +1,33 @@
-import type { IRaceRepository } from '../../domain/repositories/IRaceRepository';
 import { Result } from '@core/shared/application/Result';
 import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
-import type { Logger, UseCaseOutputPort } from '@core/shared/application';
+import type { IRaceRepository } from '../../domain/repositories/IRaceRepository';
 
-export type GetTotalRacesInput = {};
+export interface GetTotalRacesInput {}
+
+export type GetTotalRacesErrorCode = 'REPOSITORY_ERROR';
 
 export interface GetTotalRacesResult {
   totalRaces: number;
 }
 
-export type GetTotalRacesErrorCode = 'REPOSITORY_ERROR';
-
 export class GetTotalRacesUseCase {
-  constructor(
-    private readonly raceRepository: IRaceRepository,
-    private readonly logger: Logger,
-    private readonly output: UseCaseOutputPort<GetTotalRacesResult>,
-  ) {}
+  constructor(private readonly raceRepository: IRaceRepository) {}
 
-  async execute(_input: GetTotalRacesInput): Promise<
-    Result<void, ApplicationErrorCode<GetTotalRacesErrorCode, { message: string }>>
-  > {
-    void _input;
+  async execute(
+    _input: GetTotalRacesInput,
+  ): Promise<Result<GetTotalRacesResult, ApplicationErrorCode<GetTotalRacesErrorCode, { message: string }>>> {
     try {
       const races = await this.raceRepository.findAll();
+      const totalRaces = races.length;
 
-      this.output.present({ totalRaces: races.length });
-
-      return Result.ok(undefined);
-    } catch (error) {
-      const err = error as Error;
-
-      this.logger.error('Error retrieving total races', err);
+      return Result.ok({ totalRaces });
+    } catch (error: unknown) {
+      const message = error instanceof Error ? error.message : 'Failed to get total races';
 
       return Result.err({
         code: 'REPOSITORY_ERROR',
-        details: { message: err.message ?? 'Failed to compute total races' },
+        details: { message },
       });
     }
   }
-}
+}