import { describe, it, expect, beforeEach } from 'vitest';
import { TeamsTestContext } from '../TeamsTestContext';
import { Driver } from '../../../../core/racing/domain/entities/Driver';
import { Team } from '../../../../core/racing/domain/entities/Team';

describe('Team Membership Use Cases', () => {
  const context = new TeamsTestContext();
  const joinTeamUseCase = context.createJoinTeamUseCase();
  const leaveTeamUseCase = context.createLeaveTeamUseCase();
  const getTeamMembershipUseCase = context.createGetTeamMembershipUseCase();
  const getTeamMembersUseCase = context.createGetTeamMembersUseCase();
  const getTeamJoinRequestsUseCase = context.createGetTeamJoinRequestsUseCase();
  const approveTeamJoinRequestUseCase = context.createApproveTeamJoinRequestUseCase();

  beforeEach(() => {
    context.clear();
  });

  describe('JoinTeamUseCase', () => {
    it('should create a join request for a team', async () => {
      const driverId = 'd1';
      const driver = Driver.create({ id: driverId, iracingId: '1', name: 'Driver 1', country: 'US' });
      await context.driverRepository.create(driver);
      
      const teamId = 't1';
      const team = Team.create({ id: teamId, name: 'Team 1', tag: 'T1', description: 'Test Team', ownerId: 'owner', leagues: [] });
      await context.teamRepository.create(team);
      
      const result = await joinTeamUseCase.execute({ teamId, driverId });

      expect(result.isOk()).toBe(true);
      const { membership } = result.unwrap();
      expect(membership.status).toBe('active');
      expect(membership.role).toBe('driver');
      
      const savedMembership = await context.membershipRepository.getMembership(teamId, driverId);
      expect(savedMembership).toBeDefined();
      expect(savedMembership?.status).toBe('active');
    });

    it('should reject join request when driver is already a member', async () => {
      const driverId = 'd3';
      const teamId = 't3';
      const team = Team.create({ id: teamId, name: 'Team 3', tag: 'T3', description: 'Test Team', ownerId: 'owner', leagues: [] });
      await context.teamRepository.create(team);
      
      await context.membershipRepository.saveMembership({
        teamId,
        driverId,
        role: 'driver',
        status: 'active',
        joinedAt: new Date()
      });
      
      const result = await joinTeamUseCase.execute({ teamId, driverId });

      expect(result.isErr()).toBe(true);
      // JoinTeamUseCase returns ALREADY_IN_TEAM if driver is in ANY team, 
      // and ALREADY_MEMBER if they are already in THIS team.
      // In this case, they are already in this team.
      expect(result.unwrapErr().code).toBe('ALREADY_IN_TEAM');
    });
  });

  describe('LeaveTeamUseCase', () => {
    it('should allow driver to leave team', async () => {
      const driverId = 'd7';
      const teamId = 't7';
      const team = Team.create({ id: teamId, name: 'Team 7', tag: 'T7', description: 'Test Team', ownerId: 'owner', leagues: [] });
      await context.teamRepository.create(team);
      
      await context.membershipRepository.saveMembership({
        teamId,
        driverId,
        role: 'driver',
        status: 'active',
        joinedAt: new Date()
      });
      
      const result = await leaveTeamUseCase.execute({ teamId, driverId });

      expect(result.isOk()).toBe(true);
      const savedMembership = await context.membershipRepository.getMembership(teamId, driverId);
      expect(savedMembership).toBeNull();
    });

    it('should reject leave when driver is team owner', async () => {
      const driverId = 'd9';
      const teamId = 't9';
      const team = Team.create({ id: teamId, name: 'Team 9', tag: 'T9', description: 'Test Team', ownerId: driverId, leagues: [] });
      await context.teamRepository.create(team);
      
      await context.membershipRepository.saveMembership({
        teamId,
        driverId,
        role: 'owner',
        status: 'active',
        joinedAt: new Date()
      });
      
      const result = await leaveTeamUseCase.execute({ teamId, driverId });

      expect(result.isErr()).toBe(true);
      expect(result.unwrapErr().code).toBe('OWNER_CANNOT_LEAVE');
    });
  });

  describe('GetTeamMembershipUseCase', () => {
    it('should retrieve driver membership in team', async () => {
      const driverId = 'd10';
      const teamId = 't10';
      const team = Team.create({ id: teamId, name: 'Team 10', tag: 'T10', description: 'Test Team', ownerId: 'owner', leagues: [] });
      await context.teamRepository.create(team);
      
      await context.membershipRepository.saveMembership({
        teamId,
        driverId,
        role: 'driver',
        status: 'active',
        joinedAt: new Date()
      });
      
      const result = await getTeamMembershipUseCase.execute({ teamId, driverId });

      expect(result.isOk()).toBe(true);
      const { membership } = result.unwrap();
      expect(membership?.role).toBe('member');
    });
  });

  describe('GetTeamMembersUseCase', () => {
    it('should retrieve all team members', async () => {
      const teamId = 't12';
      const team = Team.create({ id: teamId, name: 'Team 12', tag: 'T12', description: 'Test Team', ownerId: 'owner', leagues: [] });
      await context.teamRepository.create(team);
      
      const driver1 = Driver.create({ id: 'd12', iracingId: '12', name: 'Driver 12', country: 'US' });
      const driver2 = Driver.create({ id: 'd13', iracingId: '13', name: 'Driver 13', country: 'UK' });
      await context.driverRepository.create(driver1);
      await context.driverRepository.create(driver2);
      
      await context.membershipRepository.saveMembership({ teamId, driverId: 'd12', role: 'owner', status: 'active', joinedAt: new Date() });
      await context.membershipRepository.saveMembership({ teamId, driverId: 'd13', role: 'driver', status: 'active', joinedAt: new Date() });
      
      const result = await getTeamMembersUseCase.execute({ teamId });

      expect(result.isOk()).toBe(true);
      const { members } = result.unwrap();
      expect(members).toHaveLength(2);
    });
  });

  describe('GetTeamJoinRequestsUseCase', () => {
    it('should retrieve pending join requests', async () => {
      const teamId = 't14';
      const team = Team.create({ id: teamId, name: 'Team 14', tag: 'T14', description: 'Test Team', ownerId: 'owner', leagues: [] });
      await context.teamRepository.create(team);
      
      const driver1 = Driver.create({ id: 'd14', iracingId: '14', name: 'Driver 14', country: 'US' });
      await context.driverRepository.create(driver1);
      
      await context.membershipRepository.saveJoinRequest({
        id: 'jr2',
        teamId,
        driverId: 'd14',
        requestedAt: new Date()
      });
      
      const result = await getTeamJoinRequestsUseCase.execute({ teamId });

      expect(result.isOk()).toBe(true);
      const { joinRequests } = result.unwrap();
      expect(joinRequests).toHaveLength(1);
    });
  });

  describe('ApproveTeamJoinRequestUseCase', () => {
    it('should approve a pending join request', async () => {
      const teamId = 't16';
      const team = Team.create({ id: teamId, name: 'Team 16', tag: 'T16', description: 'Test Team', ownerId: 'owner', leagues: [] });
      await context.teamRepository.create(team);
      
      const driverId = 'd16';
      const driver = Driver.create({ id: driverId, iracingId: '16', name: 'Driver 16', country: 'US' });
      await context.driverRepository.create(driver);
      
      await context.membershipRepository.saveJoinRequest({
        id: 'jr4',
        teamId,
        driverId,
        requestedAt: new Date()
      });
      
      const result = await approveTeamJoinRequestUseCase.execute({ teamId, requestId: 'jr4' });

      expect(result.isOk()).toBe(true);
      const savedMembership = await context.membershipRepository.getMembership(teamId, driverId);
      expect(savedMembership?.status).toBe('active');
    });
  });
});