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

describe('TeamsViewDataBuilder', () => {
  describe('happy paths', () => {
    it('should transform TeamsPageDto to TeamsViewData correctly', () => {
      const apiDto = {
        teams: [
          {
            id: 'team-1',
            name: 'Racing Team Alpha',
            memberCount: 15,
            logoUrl: 'https://example.com/logo1.jpg',
            rating: 1500,
            totalWins: 50,
            totalRaces: 200,
            region: 'USA',
            isRecruiting: false,
            category: 'competitive',
            performanceLevel: 'elite',
            description: 'A top-tier racing team',
          },
          {
            id: 'team-2',
            name: 'Speed Demons',
            memberCount: 8,
            logoUrl: 'https://example.com/logo2.jpg',
            rating: 1200,
            totalWins: 20,
            totalRaces: 150,
            region: 'UK',
            isRecruiting: true,
            category: 'casual',
            performanceLevel: 'advanced',
            description: 'Fast and fun',
          },
        ],
      };

      const result = TeamsViewDataBuilder.build(apiDto as any);

      expect(result.teams).toHaveLength(2);
      expect(result.teams[0]).toEqual({
        teamId: 'team-1',
        teamName: 'Racing Team Alpha',
        memberCount: 15,
        logoUrl: 'https://example.com/logo1.jpg',
        ratingLabel: '1,500',
        ratingValue: 1500,
        winsLabel: '50',
        racesLabel: '200',
        region: 'USA',
        isRecruiting: false,
        category: 'competitive',
        performanceLevel: 'elite',
        description: 'A top-tier racing team',
        countryCode: 'USA',
      });
      expect(result.teams[1]).toEqual({
        teamId: 'team-2',
        teamName: 'Speed Demons',
        memberCount: 8,
        logoUrl: 'https://example.com/logo2.jpg',
        ratingLabel: '1,200',
        ratingValue: 1200,
        winsLabel: '20',
        racesLabel: '150',
        region: 'UK',
        isRecruiting: true,
        category: 'casual',
        performanceLevel: 'advanced',
        description: 'Fast and fun',
        countryCode: 'UK',
      });
    });

    it('should handle empty teams list', () => {
      const apiDto = {
        teams: [],
      };

      const result = TeamsViewDataBuilder.build(apiDto as any);

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

    it('should handle teams with missing optional fields', () => {
      const apiDto = {
        teams: [
          {
            id: 'team-1',
            name: 'Minimal Team',
            memberCount: 5,
          },
        ],
      };

      const result = TeamsViewDataBuilder.build(apiDto as any);

      expect(result.teams[0].ratingValue).toBe(0);
      expect(result.teams[0].winsLabel).toBe('0');
      expect(result.teams[0].racesLabel).toBe('0');
      expect(result.teams[0].logoUrl).toBeUndefined();
    });
  });

  describe('data transformation', () => {
    it('should preserve all DTO fields in the output', () => {
      const apiDto = {
        teams: [
          {
            id: 'team-1',
            name: 'Test Team',
            memberCount: 10,
            rating: 1000,
            totalWins: 5,
            totalRaces: 20,
            region: 'EU',
            isRecruiting: true,
            category: 'test',
            performanceLevel: 'test-level',
            description: 'test-desc',
          },
        ],
      };

      const result = TeamsViewDataBuilder.build(apiDto as any);

      expect(result.teams[0].teamId).toBe(apiDto.teams[0].id);
      expect(result.teams[0].teamName).toBe(apiDto.teams[0].name);
      expect(result.teams[0].memberCount).toBe(apiDto.teams[0].memberCount);
      expect(result.teams[0].ratingValue).toBe(apiDto.teams[0].rating);
      expect(result.teams[0].region).toBe(apiDto.teams[0].region);
      expect(result.teams[0].isRecruiting).toBe(apiDto.teams[0].isRecruiting);
      expect(result.teams[0].category).toBe(apiDto.teams[0].category);
      expect(result.teams[0].performanceLevel).toBe(apiDto.teams[0].performanceLevel);
      expect(result.teams[0].description).toBe(apiDto.teams[0].description);
    });

    it('should not modify the input DTO', () => {
      const apiDto = {
        teams: [
          {
            id: 'team-1',
            name: 'Test Team',
            memberCount: 10,
          },
        ],
      };

      const originalDto = JSON.parse(JSON.stringify(apiDto));
      TeamsViewDataBuilder.build(apiDto as any);

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