refactor racing use cases

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

@@ -1,28 +1,98 @@
 import { Result } from '@core/shared/application/Result';
 import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
 import type { IRaceRegistrationRepository } from '@core/racing/domain/repositories/IRaceRegistrationRepository';
-import type { WithdrawFromRaceCommandDTO } from '../dto/WithdrawFromRaceCommandDTO';
+import type { IRaceRepository } from '@core/racing/domain/repositories/IRaceRepository';
+import type { UseCaseOutputPort } from '@core/shared/application/UseCaseOutputPort';
+import type { Logger } from '@core/shared/application/Logger';
+
+export type WithdrawFromRaceInput = {
+  raceId: string;
+  driverId: string;
+};
+
+export type WithdrawFromRaceResult = {
+  raceId: string;
+  driverId: string;
+  status: 'withdrawn';
+};
+
+export type WithdrawFromRaceErrorCode =
+  | 'RACE_NOT_FOUND'
+  | 'REGISTRATION_NOT_FOUND'
+  | 'WITHDRAWAL_NOT_ALLOWED'
+  | 'REPOSITORY_ERROR';
 
 /**
- * Mirrors legacy withdrawFromRace behavior:
- * - returns error when driver is not registered
- * - removes registration and cleans up empty race sets
- *
- * The repository encapsulates the in-memory or persistent details.
+ * Use Case: Withdraw a driver from a race.
  */
 export class WithdrawFromRaceUseCase {
   constructor(
+    private readonly raceRepository: IRaceRepository,
     private readonly registrationRepository: IRaceRegistrationRepository,
+    private readonly logger: Logger,
+    private readonly output: UseCaseOutputPort<WithdrawFromRaceResult>,
   ) {}
 
-  async execute(command: WithdrawFromRaceCommandDTO): Promise<Result<void, ApplicationErrorCode<'NOT_REGISTERED'>>> {
-    const { raceId, driverId } = command;
+  async execute(input: WithdrawFromRaceInput): Promise<
+    Result<void, ApplicationErrorCode<WithdrawFromRaceErrorCode, { message: string }>>
+  > {
+    const { raceId, driverId } = input;
 
     try {
+      const race = await this.raceRepository.findById(raceId);
+
+      if (!race) {
+        return Result.err({
+          code: 'RACE_NOT_FOUND',
+          details: {
+            message: `Race ${raceId} not found`,
+          },
+        });
+      }
+
+      const isRegistered = await this.registrationRepository.isRegistered(raceId, driverId);
+
+      if (!isRegistered) {
+        return Result.err({
+          code: 'REGISTRATION_NOT_FOUND',
+          details: {
+            message: `Driver ${driverId} is not registered for race ${raceId}`,
+          },
+        });
+      }
+
+      if (!race.isUpcoming()) {
+        return Result.err({
+          code: 'WITHDRAWAL_NOT_ALLOWED',
+          details: {
+            message: 'Withdrawal is not allowed for this race',
+          },
+        });
+      }
+
       await this.registrationRepository.withdraw(raceId, driverId);
+
+      const result: WithdrawFromRaceResult = {
+        raceId,
+        driverId,
+        status: 'withdrawn',
+      };
+
+      this.output.present(result);
+
       return Result.ok(undefined);
-    } catch {
-      return Result.err({ code: 'NOT_REGISTERED' });
+    } catch (error) {
+      const message =
+        error instanceof Error ? error.message : 'Failed to withdraw from race';
+
+      this.logger.error('WithdrawFromRaceUseCase.execute failed', error instanceof Error ? error : undefined);
+
+      return Result.err({
+        code: 'REPOSITORY_ERROR',
+        details: {
+          message,
+        },
+      });
     }
   }
 }