import { describe, expect, it } from 'vitest';

import { missingTranslationKeys, translationKeys } from './i18n-tools';

describe('i18n tooling', () => {
  it('flattens nested keys', () => {
    expect(translationKeys({ a: { b: 'x', c: { d: 'y' } }, e: 'z' })).toEqual([
      'a.b',
      'a.c.d',
      'e',
    ]);
  });

  it('finds keys missing in one language', () => {
    const en = { home: { title: 'Hi', body: 'Text' } };
    const de = { home: { title: 'Hallo' } };
    expect(missingTranslationKeys(en, de)).toEqual(['home.body']);
    expect(missingTranslationKeys(de, en)).toEqual([]);
  });
});