import 'dart:io';

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:pluriwave/estado/estado_radio.dart';
import 'package:pluriwave/l10n/gen/app_localizations.dart';
import 'package:pluriwave/pantallas/ajustes/pantalla_ajustes_info.dart';
import 'package:pluriwave/pantallas/pantalla_tutorial_ayuda.dart';
import 'package:pluriwave/widgets/pluri_push_scaffold.dart';
import 'package:provider/provider.dart';
import 'package:shared_preferences/shared_preferences.dart';

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

/// Pre-existing project constraint (see `pantalla_ajustes_test.dart`):
/// PluriGlassSurface paints a background over ListTile's ink layer, which
/// Flutter flags as a warning-level assertion, not a correctness bug.
void _suppressListTileInkAssertion() {
  final original = FlutterError.onError;
  FlutterError.onError = (details) {
    if (details.exceptionAsString().contains(
      'ListTile background color or ink splashes may be invisible',
    )) {
      return;
    }
    original?.call(details);
  };
  addTearDown(() => FlutterError.onError = original);
}

/// WU3b task 3b.1: the APLICACIÓN detail screen for "Info" renders inside a
/// [PluriPushScaffold] and its moved controls (saved-favorites count, help
/// row) still respond exactly as they did inside the old `_SeccionInfo`.
/// Unlike the other four WU3b screens, this one never had its own header
/// icon+title row to strip (see `pantalla_ajustes_info.dart`'s doc comment).
void main() {
  setUp(() {
    SharedPreferences.setMockInitialValues({});
  });

  Future<File> archivoCustomVacio() async => File(
    '${Directory.current.path}/test/fixtures/emisoras_custom_vacio.json',
  );

  Future<EstadoRadio> crearEstado() async {
    return EstadoRadio(
      audio: FakeServicioAudio(),
      favoritos: FakeServicioFavoritos(),
      radio: FakeServicioRadio(),
      servicioEcualizador: FakeServicioEcualizador(),
      servicioGrabacion: FakeServicioGrabacionRadioInactiva(),
      resolverArchivoCustom: archivoCustomVacio,
      iniciarAutomaticamente: false,
    );
  }

  Widget buildScreen(EstadoRadio estado) {
    return ChangeNotifierProvider<EstadoRadio>.value(
      value: estado,
      child: MaterialApp(
        locale: const Locale('en'),
        localizationsDelegates: AppLocalizations.localizationsDelegates,
        supportedLocales: AppLocalizations.supportedLocales,
        home: const PantallaAjustesInfo(),
      ),
    );
  }

  testWidgets('renders inside a PluriPushScaffold titled "Info"', (
    tester,
  ) async {
    _suppressListTileInkAssertion();
    final estado = await crearEstado();
    addTearDown(estado.dispose);

    await tester.pumpWidget(buildScreen(estado));
    await tester.pump();
    await tester.pump(const Duration(milliseconds: 100));

    expect(find.byType(PluriPushScaffold), findsOneWidget);
    expect(find.text('Info'), findsOneWidget);
  });

  testWidgets(
    'moved control still responds: saved favorites count reflects the '
    'favorites list',
    (tester) async {
      _suppressListTileInkAssertion();
      final estado = await crearEstado();
      addTearDown(estado.dispose);

      await tester.pumpWidget(buildScreen(estado));
      await tester.pump();
      await tester.pump(const Duration(milliseconds: 100));

      expect(find.text('Saved favorites'), findsOneWidget);
      expect(find.text('0'), findsOneWidget);
      expect(find.text('Help and tutorial'), findsOneWidget);
    },
  );

  testWidgets('tapping "Help and tutorial" opens the tutorial carousel with '
      'primerArranque: false (so its last page reads "Close", not '
      '"Start listening")', (tester) async {
    _suppressListTileInkAssertion();
    final estado = await crearEstado();
    addTearDown(estado.dispose);

    await tester.pumpWidget(buildScreen(estado));
    await tester.pump();
    await tester.pump(const Duration(milliseconds: 100));

    await tester.tap(find.text('Help and tutorial'));
    await tester.pumpAndSettle();

    final pantalla = tester.widget<PantallaTutorialAyuda>(
      find.byType(PantallaTutorialAyuda),
    );
    expect(pantalla.primerArranque, isFalse);
  });
}