import { LeagueRepository, LeagueData } from '../ports/LeagueRepository';
import { DriverRepository } from '../ports/DriverRepository';
import { EventPublisher } from '../ports/EventPublisher';
import { JoinLeagueCommand } from '../ports/JoinLeagueCommand';

export class JoinLeagueUseCase {
  constructor(
    private readonly leagueRepository: LeagueRepository,
    private readonly driverRepository: DriverRepository,
    private readonly eventPublisher: EventPublisher,
  ) {}

  async execute(command: JoinLeagueCommand): Promise<void> {
    const league = await this.leagueRepository.findById(command.leagueId);
    if (!league) {
      throw new Error('League not found');
    }

    const driver = await this.driverRepository.findDriverById(command.driverId);
    if (!driver) {
      throw new Error('Driver not found');
    }

    if (league.approvalRequired) {
      await this.leagueRepository.addPendingRequests(command.leagueId, [
        {
          id: `request-${Date.now()}`,
          driverId: command.driverId,
          name: driver.name,
          requestDate: new Date(),
        },
      ]);
    } else {
      await this.leagueRepository.addLeagueMembers(command.leagueId, [
        {
          driverId: command.driverId,
          name: driver.name,
          role: 'member',
          joinDate: new Date(),
        },
      ]);
    }
  }
}