import { UserResponseDto } from './UserResponseDto';

describe('UserResponseDto', () => {
  describe('TDD - Test First', () => {
    it('should create valid DTO with all fields', () => {
      // Arrange & Act
      const dto = new UserResponseDto();
      dto.id = 'user-123';
      dto.email = 'test@example.com';
      dto.displayName = 'Test User';
      dto.roles = ['owner', 'admin'];
      dto.status = 'active';
      dto.isSystemAdmin = true;
      dto.createdAt = new Date('2024-01-01T00:00:00Z');
      dto.updatedAt = new Date('2024-01-02T00:00:00Z');
      dto.lastLoginAt = new Date('2024-01-03T00:00:00Z');
      dto.primaryDriverId = 'driver-456';

      // Assert
      expect(dto.id).toBe('user-123');
      expect(dto.email).toBe('test@example.com');
      expect(dto.displayName).toBe('Test User');
      expect(dto.roles).toEqual(['owner', 'admin']);
      expect(dto.status).toBe('active');
      expect(dto.isSystemAdmin).toBe(true);
      expect(dto.createdAt).toEqual(new Date('2024-01-01T00:00:00Z'));
      expect(dto.updatedAt).toEqual(new Date('2024-01-02T00:00:00Z'));
      expect(dto.lastLoginAt).toEqual(new Date('2024-01-03T00:00:00Z'));
      expect(dto.primaryDriverId).toBe('driver-456');
    });

    it('should create DTO with required fields only', () => {
      // Arrange & Act
      const dto = new UserResponseDto();
      dto.id = 'user-123';
      dto.email = 'test@example.com';
      dto.displayName = 'Test User';
      dto.roles = ['user'];
      dto.status = 'active';
      dto.isSystemAdmin = false;
      dto.createdAt = new Date();
      dto.updatedAt = new Date();

      // Assert
      expect(dto.id).toBe('user-123');
      expect(dto.email).toBe('test@example.com');
      expect(dto.displayName).toBe('Test User');
      expect(dto.roles).toEqual(['user']);
      expect(dto.status).toBe('active');
      expect(dto.isSystemAdmin).toBe(false);
      expect(dto.createdAt).toBeInstanceOf(Date);
      expect(dto.updatedAt).toBeInstanceOf(Date);
      expect(dto.lastLoginAt).toBeUndefined();
      expect(dto.primaryDriverId).toBeUndefined();
    });

    it('should handle empty roles array', () => {
      // Arrange & Act
      const dto = new UserResponseDto();
      dto.id = 'user-123';
      dto.email = 'test@example.com';
      dto.displayName = 'Test User';
      dto.roles = [];
      dto.status = 'active';
      dto.isSystemAdmin = false;
      dto.createdAt = new Date();
      dto.updatedAt = new Date();

      // Assert
      expect(dto.roles).toEqual([]);
    });

    it('should handle single role', () => {
      // Arrange & Act
      const dto = new UserResponseDto();
      dto.id = 'user-123';
      dto.email = 'test@example.com';
      dto.displayName = 'Test User';
      dto.roles = ['admin'];
      dto.status = 'active';
      dto.isSystemAdmin = true;
      dto.createdAt = new Date();
      dto.updatedAt = new Date();

      // Assert
      expect(dto.roles).toEqual(['admin']);
      expect(dto.isSystemAdmin).toBe(true);
    });

    it('should handle suspended status', () => {
      // Arrange & Act
      const dto = new UserResponseDto();
      dto.id = 'user-123';
      dto.email = 'test@example.com';
      dto.displayName = 'Test User';
      dto.roles = ['user'];
      dto.status = 'suspended';
      dto.isSystemAdmin = false;
      dto.createdAt = new Date();
      dto.updatedAt = new Date();

      // Assert
      expect(dto.status).toBe('suspended');
    });

    it('should handle deleted status', () => {
      // Arrange & Act
      const dto = new UserResponseDto();
      dto.id = 'user-123';
      dto.email = 'test@example.com';
      dto.displayName = 'Test User';
      dto.roles = ['user'];
      dto.status = 'deleted';
      dto.isSystemAdmin = false;
      dto.createdAt = new Date();
      dto.updatedAt = new Date();

      // Assert
      expect(dto.status).toBe('deleted');
    });

    it('should handle very long display names', () => {
      // Arrange
      const longName = 'A'.repeat(100);

      // Act
      const dto = new UserResponseDto();
      dto.id = 'user-123';
      dto.email = 'test@example.com';
      dto.displayName = longName;
      dto.roles = ['user'];
      dto.status = 'active';
      dto.isSystemAdmin = false;
      dto.createdAt = new Date();
      dto.updatedAt = new Date();

      // Assert
      expect(dto.displayName).toBe(longName);
    });

    it('should handle special characters in email', () => {
      // Arrange & Act
      const dto = new UserResponseDto();
      dto.id = 'user-123';
      dto.email = 'test+tag@example.co.uk';
      dto.displayName = 'Test User';
      dto.roles = ['user'];
      dto.status = 'active';
      dto.isSystemAdmin = false;
      dto.createdAt = new Date();
      dto.updatedAt = new Date();

      // Assert
      expect(dto.email).toBe('test+tag@example.co.uk');
    });

    it('should handle unicode in display name', () => {
      // Arrange & Act
      const dto = new UserResponseDto();
      dto.id = 'user-123';
      dto.email = 'test@example.com';
      dto.displayName = 'Tëst Ñame';
      dto.roles = ['user'];
      dto.status = 'active';
      dto.isSystemAdmin = false;
      dto.createdAt = new Date();
      dto.updatedAt = new Date();

      // Assert
      expect(dto.displayName).toBe('Tëst Ñame');
    });

    it('should handle UUID format for ID', () => {
      // Arrange
      const uuid = '550e8400-e29b-41d4-a716-446655440000';

      // Act
      const dto = new UserResponseDto();
      dto.id = uuid;
      dto.email = 'test@example.com';
      dto.displayName = 'Test User';
      dto.roles = ['user'];
      dto.status = 'active';
      dto.isSystemAdmin = false;
      dto.createdAt = new Date();
      dto.updatedAt = new Date();

      // Assert
      expect(dto.id).toBe(uuid);
    });

    it('should handle numeric primary driver ID', () => {
      // Arrange & Act
      const dto = new UserResponseDto();
      dto.id = 'user-123';
      dto.email = 'test@example.com';
      dto.displayName = 'Test User';
      dto.roles = ['user'];
      dto.status = 'active';
      dto.isSystemAdmin = false;
      dto.createdAt = new Date();
      dto.updatedAt = new Date();
      dto.primaryDriverId = '123456';

      // Assert
      expect(dto.primaryDriverId).toBe('123456');
    });

    it('should handle very old and very new dates', () => {
      // Arrange
      const oldDate = new Date('1970-01-01T00:00:00Z');
      const newDate = new Date('2099-12-31T23:59:59Z');

      // Act
      const dto = new UserResponseDto();
      dto.id = 'user-123';
      dto.email = 'test@example.com';
      dto.displayName = 'Test User';
      dto.roles = ['user'];
      dto.status = 'active';
      dto.isSystemAdmin = false;
      dto.createdAt = oldDate;
      dto.updatedAt = newDate;
      dto.lastLoginAt = newDate;

      // Assert
      expect(dto.createdAt).toEqual(oldDate);
      expect(dto.updatedAt).toEqual(newDate);
      expect(dto.lastLoginAt).toEqual(newDate);
    });
  });
});