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

describe('OnboardingPageViewDataBuilder', () => {
  describe('happy paths', () => {
    it('should transform driver data to ViewData correctly when driver exists', () => {
      const apiDto = { id: 'driver-123', name: 'Test Driver' };

      const result = OnboardingPageViewDataBuilder.build(apiDto);

      expect(result).toEqual({
        isAlreadyOnboarded: true,
      });
    });

    it('should handle empty object as driver data', () => {
      const apiDto = {};

      const result = OnboardingPageViewDataBuilder.build(apiDto);

      expect(result).toEqual({
        isAlreadyOnboarded: true,
      });
    });

    it('should handle null driver data', () => {
      const apiDto = null;

      const result = OnboardingPageViewDataBuilder.build(apiDto);

      expect(result).toEqual({
        isAlreadyOnboarded: false,
      });
    });

    it('should handle undefined driver data', () => {
      const apiDto = undefined;

      const result = OnboardingPageViewDataBuilder.build(apiDto);

      expect(result).toEqual({
        isAlreadyOnboarded: false,
      });
    });
  });

  describe('data transformation', () => {
    it('should preserve all driver data fields in the output', () => {
      const apiDto = {
        id: 'driver-123',
        name: 'Test Driver',
        email: 'test@example.com',
        createdAt: '2024-01-01T00:00:00.000Z',
      };

      const result = OnboardingPageViewDataBuilder.build(apiDto);

      expect(result.isAlreadyOnboarded).toBe(true);
    });

    it('should not modify the input driver data', () => {
      const apiDto = { id: 'driver-123', name: 'Test Driver' };
      const originalDto = { ...apiDto };

      OnboardingPageViewDataBuilder.build(apiDto);

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

  describe('edge cases', () => {
    it('should handle empty string as driver data', () => {
      const apiDto = '';

      const result = OnboardingPageViewDataBuilder.build(apiDto);

      expect(result).toEqual({
        isAlreadyOnboarded: false,
      });
    });

    it('should handle zero as driver data', () => {
      const apiDto = 0;

      const result = OnboardingPageViewDataBuilder.build(apiDto);

      expect(result).toEqual({
        isAlreadyOnboarded: false,
      });
    });

    it('should handle false as driver data', () => {
      const apiDto = false;

      const result = OnboardingPageViewDataBuilder.build(apiDto);

      expect(result).toEqual({
        isAlreadyOnboarded: false,
      });
    });

    it('should handle array as driver data', () => {
      const apiDto = ['driver-123'];

      const result = OnboardingPageViewDataBuilder.build(apiDto);

      expect(result).toEqual({
        isAlreadyOnboarded: true,
      });
    });

    it('should handle function as driver data', () => {
      const apiDto = () => {};

      const result = OnboardingPageViewDataBuilder.build(apiDto);

      expect(result).toEqual({
        isAlreadyOnboarded: true,
      });
    });
  });
});