import { UserStatus } from './UserStatus';

describe('UserStatus', () => {
  describe('TDD - Test First', () => {
    it('should create a valid status from string', () => {
      // Arrange & Act
      const status = UserStatus.fromString('active');

      // Assert
      expect(status.value).toBe('active');
    });

    it('should trim whitespace', () => {
      // Arrange & Act
      const status = UserStatus.fromString('  suspended  ');

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

    it('should throw error for empty string', () => {
      // Arrange & Act & Assert
      expect(() => UserStatus.fromString('')).toThrow('Status cannot be empty');
      expect(() => UserStatus.fromString('   ')).toThrow('Status cannot be empty');
    });

    it('should throw error for null or undefined', () => {
      // Arrange & Act & Assert
      expect(() => UserStatus.fromString(null as unknown as string)).toThrow('Status cannot be empty');
      expect(() => UserStatus.fromString(undefined as unknown as string)).toThrow('Status cannot be empty');
    });

    it('should handle all valid statuses', () => {
      // Arrange & Act
      const active = UserStatus.fromString('active');
      const suspended = UserStatus.fromString('suspended');
      const deleted = UserStatus.fromString('deleted');

      // Assert
      expect(active.value).toBe('active');
      expect(suspended.value).toBe('suspended');
      expect(deleted.value).toBe('deleted');
    });

    it('should detect active status', () => {
      // Arrange
      const active = UserStatus.fromString('active');
      const suspended = UserStatus.fromString('suspended');
      const deleted = UserStatus.fromString('deleted');

      // Assert
      expect(active.isActive()).toBe(true);
      expect(suspended.isActive()).toBe(false);
      expect(deleted.isActive()).toBe(false);
    });

    it('should detect suspended status', () => {
      // Arrange
      const active = UserStatus.fromString('active');
      const suspended = UserStatus.fromString('suspended');
      const deleted = UserStatus.fromString('deleted');

      // Assert
      expect(active.isSuspended()).toBe(false);
      expect(suspended.isSuspended()).toBe(true);
      expect(deleted.isSuspended()).toBe(false);
    });

    it('should detect deleted status', () => {
      // Arrange
      const active = UserStatus.fromString('active');
      const suspended = UserStatus.fromString('suspended');
      const deleted = UserStatus.fromString('deleted');

      // Assert
      expect(active.isDeleted()).toBe(false);
      expect(suspended.isDeleted()).toBe(false);
      expect(deleted.isDeleted()).toBe(true);
    });

    it('should support equals comparison', () => {
      // Arrange
      const status1 = UserStatus.fromString('active');
      const status2 = UserStatus.fromString('active');
      const status3 = UserStatus.fromString('suspended');

      // Assert
      expect(status1.equals(status2)).toBe(true);
      expect(status1.equals(status3)).toBe(false);
    });

    it('should support toString', () => {
      // Arrange
      const status = UserStatus.fromString('active');

      // Assert
      expect(status.toString()).toBe('active');
    });

    it('should handle custom statuses', () => {
      // Arrange & Act
      const customStatus = UserStatus.fromString('pending');

      // Assert
      expect(customStatus.value).toBe('pending');
      expect(customStatus.isActive()).toBe(false);
    });

    it('should handle case sensitivity', () => {
      // Arrange & Act
      const status1 = UserStatus.fromString('Active');
      const status2 = UserStatus.fromString('active');

      // Assert - Should preserve case but compare as-is
      expect(status1.value).toBe('Active');
      expect(status2.value).toBe('active');
    });

    it('should handle special characters in status names', () => {
      // Arrange & Act
      const status = UserStatus.fromString('under-review');

      // Assert
      expect(status.value).toBe('under-review');
    });
  });
});