import type { IDriverRepository } from '../../domain/repositories/IDriverRepository';
import { Driver } from '../../domain/entities/Driver';
import { Result } from '@core/shared/application/Result';
import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
import type { UseCaseOutputPort } from '@core/shared/application/UseCaseOutputPort';

export interface CompleteDriverOnboardingInput {
  userId: string;
  firstName: string;
  lastName: string;
  displayName: string;
  country: string;
  bio?: string;
}

export type CompleteDriverOnboardingResult = {
  driver: Driver;
};

/**
 * Use Case for completing driver onboarding.
 */
export class CompleteDriverOnboardingUseCase {
  constructor(
    private readonly driverRepository: IDriverRepository,
    private readonly output: UseCaseOutputPort<CompleteDriverOnboardingResult>,
  ) {}

  async execute(command: CompleteDriverOnboardingInput): Promise<Result<void, ApplicationErrorCode<'DRIVER_ALREADY_EXISTS' | 'REPOSITORY_ERROR'>>> {
    try {
      const existing = await this.driverRepository.findById(command.userId);
      if (existing) {
        return Result.err({ code: 'DRIVER_ALREADY_EXISTS' });
      }

      const driver = Driver.create({
        id: command.userId,
        iracingId: command.userId,
        name: command.displayName,
        country: command.country,
        ...(command.bio !== undefined ? { bio: command.bio } : {}),
      });

      await this.driverRepository.create(driver);

      this.output.present({ driver });

      return Result.ok(undefined);
    } catch (error) {
      return Result.err({
        code: 'REPOSITORY_ERROR',
        details: {
          message: error instanceof Error ? error.message : 'Unknown error',
        },
      });
    }
  }
}