import 'package:flutter_test/flutter_test.dart';
import 'package:pluriwave/servicios/servicio_audio.dart';

/// Android Auto play-path backstop (design.md ADR-4, android-auto-media
/// spec "Free-Tier Browse Never Leaks Real Content" + "Current-Station
/// Playback Unaffected By Free Tier"): `playFromMediaId`, `playFromSearch`,
/// `skipToNext`, `skipToPrevious` must ALL no-op for a free-tier user,
/// regardless of the target id — gating `getChildren` alone is
/// insufficient because a head unit caches browse trees, so a stale
/// `emisora:<uuid>` tap could otherwise bypass browsing entirely. Pure —
/// `PluriWaveAudioHandler` cannot be instantiated in a unit test (needs a
/// real platform `AudioPlayer`), so this is the extracted decision the
/// handler's dispatch methods delegate to (mirrors `mapearEstadoProceso`
/// and every other pure helper in this file).
void main() {
  test('free tier: bloquea cualquier cambio de emisora/salto', () {
    expect(debeBloquearCambioDeEmisora(premium: false), isTrue);
  });

  test('premium: nunca bloquea', () {
    expect(debeBloquearCambioDeEmisora(premium: true), isFalse);
  });

  group('notificarDesbloqueoAuto / registrarNotificacionDesbloqueoAuto', () {
    test('sin hook registrado, es un no-op seguro', () {
      expect(() => notificarDesbloqueoAuto(), returnsNormally);
    });

    test('invoca el hook registrado exactamente una vez por llamada', () {
      var llamadas = 0;
      registrarNotificacionDesbloqueoAuto(() => llamadas++);

      notificarDesbloqueoAuto();

      expect(llamadas, 1);
    });
  });
}