/* eslint-env jest */
import {
  changeExcerpt,
  fieldLabel,
  sourceLabel,
  valueLabel,
} from '../change-labels';

describe('change labels', () => {
  it('names the writer, the field and the value as a merchant reads them', () => {
    expect(sourceLabel('agent')).toBe('SEO medic');
    expect(sourceLabel('something_new')).toBe('Something new');
    expect(fieldLabel('post', '_recomaze_seo_description')).toBe(
      'Meta description'
    );
    expect(fieldLabel('media', 'alt')).toBe('Alt text');
    expect(fieldLabel('user', '_recomaze_seo_x')).toBe('X username');
    expect(fieldLabel('user', '_recomaze_seo_profiles')).toBe('Other profiles');
    expect(fieldLabel('option', 'general.robots_ai_allow')).toBe(
      'AI crawlers allowed'
    );
    expect(fieldLabel('option', 'titles.some_new_key')).toBe('Some new key');
    expect(fieldLabel('module', 'monitor_404')).toBe('Module: Monitor 404');
    expect(valueLabel(true)).toBe('On');
    expect(valueLabel(false)).toBe('Off');
    expect(valueLabel(['gptbot', 'ccbot'])).toBe('gptbot, ccbot');
    expect(valueLabel('')).toBe('—');
  });
});

describe('the excerpt of a long text change', () => {
  const post = (href: string, tail = ''): string =>
    `<p>Choosing the right hoodie size comes down to three measurements. Read the <a href="${href}">first guide</a> before you buy, then compare the chart with your own numbers.${tail}</p>`;

  it('shows the words that changed with a little text around them', () => {
    const parts = changeExcerpt(
      post('https://old.example/a'),
      post('https://new.example/a')
    );
    expect(parts).toEqual([
      {
        type: 'same',
        text: '…hoodie size comes down to three measurements. Read the <a ',
      },
      { type: 'del', text: 'href="https://old.example/a">first' },
      { type: 'add', text: 'href="https://new.example/a">first' },
      {
        type: 'same',
        text: ' guide</a> before you buy, then compare the chart with your…',
      },
    ]);
  });

  it('shows what was taken out or added alone', () => {
    const parts = changeExcerpt(
      post('https://a.example'),
      post('https://a.example', ' Free returns.')
    );
    expect(parts?.filter(part => part.type !== 'same')).toEqual([
      { type: 'del', text: 'numbers.</p>' },
      { type: 'add', text: 'numbers. Free returns.</p>' },
    ]);
  });

  it('leaves short values and values that are not text to the plain label', () => {
    expect(changeExcerpt('Old title', 'New title')).toBeNull();
    expect(changeExcerpt(['a'], ['b'])).toBeNull();
    expect(changeExcerpt(post('x'), post('x'))).toBeNull();
  });
});