import { describe, it, expect } from 'vitest';
import { LeagueSponsorshipsViewDataBuilder } from './LeagueSponsorshipsViewDataBuilder';

describe('LeagueSponsorshipsViewDataBuilder', () => {
  describe('happy paths', () => {
    it('should transform LeagueSponsorshipsInputDTO to LeagueSponsorshipsViewData correctly', () => {
      const leagueSponsorshipsApiDto = {
        leagueId: 'league-123',
        league: {
          id: 'league-123',
          name: 'Test League',
          description: 'Test Description',
        },
        sponsorshipSlots: [
          {
            id: 'slot-1',
            name: 'Primary Sponsor',
            description: 'Main sponsor',
            price: 1000,
            currency: 'USD',
            isAvailable: true,
          },
        ],
        sponsorships: [
          {
            id: 'request-1',
            status: 'pending',
            createdAt: '2024-01-01T10:00:00Z',
          },
        ],
      };

      const result = LeagueSponsorshipsViewDataBuilder.build(leagueSponsorshipsApiDto as any);

      expect(result.leagueId).toBe('league-123');
      expect(result.league.name).toBe('Test League');
      expect(result.sponsorshipSlots).toHaveLength(1);
      expect(result.sponsorshipRequests).toHaveLength(1);
      expect(result.sponsorshipRequests[0].id).toBe('request-1');
      expect(result.sponsorshipRequests[0].status).toBe('pending');
    });

    it('should handle empty sponsorship requests', () => {
      const leagueSponsorshipsApiDto = {
        leagueId: 'league-456',
        league: {
          id: 'league-456',
          name: 'Test League',
          description: '',
        },
        sponsorshipSlots: [],
        sponsorships: [],
      };

      const result = LeagueSponsorshipsViewDataBuilder.build(leagueSponsorshipsApiDto as any);

      expect(result.sponsorshipRequests).toHaveLength(0);
    });
  });

  describe('data transformation', () => {
    it('should preserve all DTO fields in the output', () => {
      const leagueSponsorshipsApiDto = {
        leagueId: 'league-101',
        league: {
          id: 'league-101',
          name: 'Test League',
          description: 'Desc',
        },
        sponsorshipSlots: [],
        sponsorships: [
          {
            id: 'request-1',
            status: 'approved',
            createdAt: '2024-01-01T10:00:00Z',
          },
        ],
      };

      const result = LeagueSponsorshipsViewDataBuilder.build(leagueSponsorshipsApiDto as any);

      expect(result.leagueId).toBe(leagueSponsorshipsApiDto.leagueId);
      expect(result.league).toEqual(leagueSponsorshipsApiDto.league);
    });

    it('should not modify the input DTO', () => {
      const leagueSponsorshipsApiDto = {
        leagueId: 'league-102',
        league: {
          id: 'league-102',
          name: 'Test League',
          description: '',
        },
        sponsorshipSlots: [],
        sponsorships: [],
      };

      const originalDto = JSON.parse(JSON.stringify(leagueSponsorshipsApiDto));
      LeagueSponsorshipsViewDataBuilder.build(leagueSponsorshipsApiDto as any);

      expect(leagueSponsorshipsApiDto).toEqual(originalDto);
    });
  });
});