import { test } from 'node:test';
import assert from 'node:assert/strict';
import { toSnakeCase, toCamelCase, pick } from './case';

test('toSnakeCase converts keys', () => {
  assert.deepEqual(toSnakeCase({ weightLbs: 3.5, sireId: 1, locusEn: 'Enen' }), {
    weight_lbs: 3.5,
    sire_id: 1,
    locus_en: 'Enen',
  });
});

test('toCamelCase converts keys', () => {
  assert.deepEqual(toCamelCase({ weight_lbs: 3.5, sire_id: 1, pp_grandsire_name_text: 'Bob' }), {
    weightLbs: 3.5,
    sireId: 1,
    ppGrandsireNameText: 'Bob',
  });
});

test('snake<->camel round-trips for schema-style keys', () => {
  const original = { maternal_granddam_name_text: 'X', registration_number: 'R1' };
  assert.deepEqual(toSnakeCase(toCamelCase(original)), original);
});

test('pick keeps only allowed keys', () => {
  const result = pick(
    { name: 'Daisy', id: 99, createdAt: 'now', photoPath: '/x.jpg' },
    ['name', 'sex']
  );
  assert.deepEqual(result, { name: 'Daisy' });
});

test('pick drops everything when nothing is allowed', () => {
  assert.deepEqual(pick({ id: 1, name: 'x' }, []), {});
});