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

describe('DriverViewModel', () => {
  it('should create instance with all properties', () => {
    const dto = {
      id: 'driver-123',
      name: 'John Doe',
      avatarUrl: 'https://example.com/avatar.jpg',
      iracingId: 'iracing-456',
      rating: 1500,
    };

    const viewModel = new DriverViewModel(dto);

    expect(viewModel.id).toBe('driver-123');
    expect(viewModel.name).toBe('John Doe');
    expect(viewModel.avatarUrl).toBe('https://example.com/avatar.jpg');
    expect(viewModel.iracingId).toBe('iracing-456');
    expect(viewModel.rating).toBe(1500);
  });

  it('should create instance with only required properties', () => {
    const dto = {
      id: 'driver-123',
      name: 'John Doe',
    };

    const viewModel = new DriverViewModel(dto);

    expect(viewModel.id).toBe('driver-123');
    expect(viewModel.name).toBe('John Doe');
    expect(viewModel.avatarUrl).toBeNull();
    expect(viewModel.iracingId).toBeUndefined();
    expect(viewModel.rating).toBeUndefined();
  });

  it('should return true for hasIracingId when iracingId exists', () => {
    const viewModel = new DriverViewModel({
      id: 'driver-123',
      name: 'John Doe',
      iracingId: 'iracing-456',
    });

    expect(viewModel.hasIracingId).toBe(true);
  });

  it('should return false for hasIracingId when iracingId is undefined', () => {
    const viewModel = new DriverViewModel({
      id: 'driver-123',
      name: 'John Doe',
    });

    expect(viewModel.hasIracingId).toBe(false);
  });

  it('should return false for hasIracingId when iracingId is empty string', () => {
    const viewModel = new DriverViewModel({
      id: 'driver-123',
      name: 'John Doe',
      iracingId: '',
    });

    expect(viewModel.hasIracingId).toBe(false);
  });

  it('should format rating correctly when rating exists', () => {
    const viewModel = new DriverViewModel({
      id: 'driver-123',
      name: 'John Doe',
      rating: 1547.89,
    });

    expect(viewModel.formattedRating).toBe('1548');
  });

  it('should return "Unrated" when rating is undefined', () => {
    const viewModel = new DriverViewModel({
      id: 'driver-123',
      name: 'John Doe',
    });

    expect(viewModel.formattedRating).toBe('Unrated');
  });

  it('should handle zero rating', () => {
    const viewModel = new DriverViewModel({
      id: 'driver-123',
      name: 'John Doe',
      rating: 0,
    });

    expect(viewModel.formattedRating).toBe('Unrated');
  });

  it('should round rating to nearest integer', () => {
    const viewModel1 = new DriverViewModel({
      id: 'driver-123',
      name: 'John Doe',
      rating: 1500.4,
    });
    const viewModel2 = new DriverViewModel({
      id: 'driver-123',
      name: 'John Doe',
      rating: 1500.6,
    });

    expect(viewModel1.formattedRating).toBe('1500');
    expect(viewModel2.formattedRating).toBe('1501');
  });
});