import type { ITeamRepository } from '../../domain/repositories/ITeamRepository';
import type { ITeamMembershipRepository } from '../../domain/repositories/ITeamMembershipRepository';
import type {
  IAllTeamsPresenter,
  AllTeamsResultDTO,
} from '../presenters/IAllTeamsPresenter';
import type { UseCase } from '@gridpilot/shared/application';
import type { Team } from '../../domain/entities/Team';

/**
 * Use Case for retrieving all teams.
 * Orchestrates domain logic and delegates presentation to the presenter.
 */
export class GetAllTeamsUseCase
  implements UseCase<void, AllTeamsResultDTO, import('../presenters/IAllTeamsPresenter').AllTeamsViewModel, IAllTeamsPresenter>
{
  constructor(
    private readonly teamRepository: ITeamRepository,
    private readonly teamMembershipRepository: ITeamMembershipRepository,
  ) {}

  async execute(_input: void, presenter: IAllTeamsPresenter): Promise<void> {
    presenter.reset();

    const teams = await this.teamRepository.findAll();

    const enrichedTeams: AllTeamsResultDTO['teams'] = await Promise.all(
      teams.map(async (team) => {
        const memberCount = await this.teamMembershipRepository.countByTeamId(team.id);
        return {
          id: team.id,
          name: team.name,
          tag: team.tag,
          description: team.description,
          ownerId: team.ownerId,
          leagues: [...team.leagues],
          createdAt: team.createdAt,
          memberCount,
        };
      }),
    );

    const dto: AllTeamsResultDTO = {
      teams: enrichedTeams,
    };

    presenter.present(dto);
  }
}