import 'package:flutter_test/flutter_test.dart';
import 'package:pluriwave/servicios/servicio_bienvenida.dart';
import 'package:shared_preferences/shared_preferences.dart';

/// WU17b: `ServicioBienvenida` decides whether the first-run welcome
/// screen (`PantallaBienvenida`) is still due — same injectable-prefs,
/// versioned-key convention as `ServicioContenidoApp` (S3-R4), but a plain
/// boolean flag since this welcome is a one-time, not per-version, surface.
void main() {
  TestWidgetsFlutterBinding.ensureInitialized();

  group('ServicioBienvenida', () {
    test(
      'debeMostrarBienvenida is true before it has ever been marked seen',
      () async {
        SharedPreferences.setMockInitialValues({});
        final servicio = ServicioBienvenida();

        expect(await servicio.debeMostrarBienvenida(), isTrue);
      },
    );

    test(
      'debeMostrarBienvenida is false after marcarBienvenidaVista',
      () async {
        SharedPreferences.setMockInitialValues({});
        final servicio = ServicioBienvenida();

        await servicio.marcarBienvenidaVista();

        expect(await servicio.debeMostrarBienvenida(), isFalse);
      },
    );

    test('respects a seen flag already persisted by a prior launch', () async {
      SharedPreferences.setMockInitialValues({
        'pluri_bienvenida_vista_v1': true,
      });
      final servicio = ServicioBienvenida();

      expect(await servicio.debeMostrarBienvenida(), isFalse);
    });
  });
}