refactor

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

@@ -1,25 +1,44 @@
 import type { ITeamMembershipRepository } from '../../domain/repositories/ITeamMembershipRepository';
 import type { LeaveTeamCommandDTO } from '../dto/TeamCommandAndQueryDTO';
+import type { AsyncUseCase, Logger } from '@core/shared/application';
+import { Result as SharedResult } from '@core/shared/application/Result';
+import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
 
-export class LeaveTeamUseCase {
+type LeaveTeamErrorCode = 'NOT_MEMBER' | 'OWNER_CANNOT_LEAVE' | 'REPOSITORY_ERROR';
+
+type LeaveTeamApplicationError = ApplicationErrorCode<LeaveTeamErrorCode, { message: string }>;
+
+export class LeaveTeamUseCase implements AsyncUseCase<LeaveTeamCommandDTO, void, LeaveTeamErrorCode> {
   constructor(
     private readonly membershipRepository: ITeamMembershipRepository,
+    private readonly logger: Logger,
   ) {}
 
-  async execute(command: LeaveTeamCommandDTO): Promise<void> {
+  async execute(command: LeaveTeamCommandDTO): Promise<SharedResult<void, LeaveTeamApplicationError>> {
+    this.logger.debug('Attempting to leave team', { command });
     const { teamId, driverId } = command;
 
-    const membership = await this.membershipRepository.getMembership(teamId, driverId);
-    if (!membership) {
-      throw new Error('Not a member of this team');
-    }
+    try {
+      const membership = await this.membershipRepository.getMembership(teamId, driverId);
+      if (!membership) {
+        this.logger.warn('Driver is not a member of this team', { driverId, teamId });
+        return SharedResult.err({ code: 'NOT_MEMBER', details: { message: 'Not a member of this team' } });
+      }
 
-    if (membership.role === 'owner') {
-      throw new Error(
-        'Team owner cannot leave. Transfer ownership or disband team first.',
-      );
-    }
+      if (membership.role === 'owner') {
+        this.logger.warn('Team owner cannot leave', { driverId, teamId });
+        return SharedResult.err({
+          code: 'OWNER_CANNOT_LEAVE',
+          details: { message: 'Team owner cannot leave. Transfer ownership or disband team first.' }
+        });
+      }
 
-    await this.membershipRepository.removeMembership(teamId, driverId);
+      await this.membershipRepository.removeMembership(teamId, driverId);
+      this.logger.info('Driver successfully left team', { driverId, teamId });
+      return SharedResult.ok(undefined);
+    } catch (error) {
+      this.logger.error('Failed to leave team due to an unexpected error', error instanceof Error ? error : new Error('Unknown error'));
+      return SharedResult.err({ code: 'REPOSITORY_ERROR', details: { message: error instanceof Error ? error.message : 'Unknown error' } });
+    }
   }
 }