import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:pluriwave/estado/estado_busqueda.dart';
import 'package:pluriwave/l10n/gen/app_localizations.dart';
import 'package:pluriwave/pantallas/pantalla_buscar.dart';
import 'package:pluriwave/widgets/tarjeta_emisora.dart';
import 'package:provider/provider.dart';

import '../helpers/fakes.dart';

/// S5-R6: the search loading state uses shimmer placeholders, not a bare
/// spinner, to stay consistent with the rest of the app.
class _BusquedaCargando extends EstadoBusqueda {
  _BusquedaCargando() : super(radio: FakeServicioRadio());

  @override
  bool get cargando => true;
}

void main() {
  testWidgets('PantallaBuscar muestra shimmer mientras carga', (tester) async {
    final busqueda = _BusquedaCargando();
    addTearDown(busqueda.dispose);

    await tester.pumpWidget(
      ListenableProvider<EstadoBusqueda>.value(
        value: busqueda,
        child: MaterialApp(
          locale: const Locale('es'),
          localizationsDelegates: AppLocalizations.localizationsDelegates,
          supportedLocales: AppLocalizations.supportedLocales,
          home: const Scaffold(body: PantallaBuscar()),
        ),
      ),
    );
    await tester.pump();

    expect(find.byType(TarjetaEmisoraShimmer), findsWidgets);
    expect(find.byType(CircularProgressIndicator), findsNothing);
  });
}