gridpilot.gg/core/leagues/application/use-cases/JoinLeagueUseCase.ts

import { LeagueRepository } 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> {
    // TODO: Implement join league logic
    // This is a placeholder implementation
    // In a real implementation, this would:
    // 1. Validate the league exists
    // 2. Validate the driver exists
    // 3. Check if the driver is already a member
    // 4. Check if the league is full
    // 5. Check if approval is required
    // 6. Add the driver to the league (or create a pending request)
    // 7. Emit appropriate events
    throw new Error('JoinLeagueUseCase not implemented');
  }
}