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

import { formatDateTime, hasReceivedTimestamp, NEVER_RECEIVED } from '../../src/locale';

describe('veilige tijdpresentatie', () => {
  it('presenteert ontbrekende, ongeldige en nulwaarden als nooit ontvangen', () => {
    expect(formatDateTime()).toBe(NEVER_RECEIVED);
    expect(formatDateTime('ongeldig')).toBe(NEVER_RECEIVED);
    expect(formatDateTime('0001-01-01T00:00:00Z')).toBe(NEVER_RECEIVED);
    expect(formatDateTime('1970-01-01T00:00:00Z')).toBe(NEVER_RECEIVED);
  });

  it('behoudt een werkelijk ontvangen timestamp en de vaste Brusselse tijdzone', () => {
    const value = '2026-08-21T14:05:00Z';
    expect(hasReceivedTimestamp(value)).toBe(true);
    expect(formatDateTime(value)).toContain('16:05');
  });
});