/* eslint-env jest */
import { nextSort } from '../sort';
import { timeAgo } from '../time-ago';

type Column = 'title' | 'date' | 'hits';

describe('a click on a column', () => {
  it('turns the same column the other way, both ways', () => {
    const titleUp = nextSort<Column>({ by: 'date', order: 'desc' }, 'title', [
      'title',
    ]);
    expect(titleUp).toEqual({ by: 'title', order: 'asc' });
    const titleDown = nextSort(titleUp, 'title', ['title']);
    expect(titleDown).toEqual({ by: 'title', order: 'desc' });
    expect(nextSort(titleDown, 'title', ['title'])).toEqual({
      by: 'title',
      order: 'asc',
    });
  });

  it('starts a new column the way it reads best', () => {
    expect(
      nextSort<Column>({ by: 'title', order: 'asc' }, 'hits', ['title'])
    ).toEqual({ by: 'hits', order: 'desc' });
  });
});

describe('when a link was checked', () => {
  const now = Date.parse('2026-09-28T12:00:00Z');
  it('reads in words', () => {
    expect(timeAgo('2026-09-28T11:59:40Z', now)).toBe('just now');
    expect(timeAgo('2026-09-28T11:45:00Z', now)).toBe('15 min ago');
    expect(timeAgo('2026-09-28T07:00:00Z', now)).toBe('5 h ago');
    expect(timeAgo('2026-09-27T09:00:00Z', now)).toBe('yesterday');
    expect(timeAgo('2026-09-24T09:00:00Z', now)).toBe('4 days ago');
    expect(timeAgo('not a date', now)).toBe('');
  });
});