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/widgets/pluri_sleep_timer_sheet.dart';
import 'package:provider/provider.dart';
import 'package:shared_preferences/shared_preferences.dart';

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

/// Issue 2 (feedback-pruebas): "Timer de sueño" opened from Escuchar (and
/// every other root header) showed a bottom sheet with no visible
/// countdown. `ServicioTimer.tiempoRestanteStream`/`tiempoRestante` already
/// existed and this sheet already had a `StreamBuilder` countdown branch —
/// but every preset/custom-duration action popped the sheet immediately
/// after starting the timer, so the countdown never had a chance to render
/// in the primary flow. Zero test coverage existed for this file before.
EstadoRadio _estado() => EstadoRadio(
  esPremium: () => true,
  audio: FakeServicioAudio(),
  favoritos: FakeServicioFavoritos(),
  radio: FakeServicioRadio(),
  servicioEcualizador: FakeServicioEcualizador(),
  servicioGrabacion: FakeServicioGrabacionRadioInactiva(),
  iniciarAutomaticamente: false,
);

Widget _host(EstadoRadio estado) {
  return ChangeNotifierProvider<EstadoRadio>.value(
    value: estado,
    child: MaterialApp(
      locale: const Locale('es'),
      localizationsDelegates: AppLocalizations.localizationsDelegates,
      supportedLocales: AppLocalizations.supportedLocales,
      home: Scaffold(
        body: Builder(
          builder:
              (context) => TextButton(
                onPressed: () => showPluriSleepTimerSheet(context),
                child: const Text('abrir'),
              ),
        ),
      ),
    ),
  );
}

void main() {
  setUp(() {
    SharedPreferences.setMockInitialValues({});
  });

  // The default 800x600 test viewport is shorter than a typical phone —
  // same fix `pantalla_reproductor_test.dart`/`pantalla_inicio_test.dart`
  // already established for other bottom-sheet/full-bleed content.
  void ajustarSuperficieRealista(WidgetTester tester) {
    tester.view.physicalSize = const Size(390, 844);
    tester.view.devicePixelRatio = 1.0;
    addTearDown(tester.view.resetPhysicalSize);
    addTearDown(tester.view.resetDevicePixelRatio);
  }

  testWidgets(
    'selecting a preset keeps the sheet open and switches it to the live '
    'remaining-time countdown, instead of closing with no feedback',
    (tester) async {
      ajustarSuperficieRealista(tester);
      final estado = _estado();
      addTearDown(estado.dispose);

      await tester.pumpWidget(_host(estado));
      await tester.tap(find.text('abrir'));
      await tester.pumpAndSettle();

      final l10n = AppLocalizations.of(tester.element(find.text('abrir')));

      expect(estado.timer.activo, isFalse);
      expect(find.byType(ActionChip), findsWidgets);

      final chip = tester.widget<ActionChip>(
        find.widgetWithText(ActionChip, l10n.durationMinutesOnly(5)),
      );
      chip.onPressed!();
      await tester.pump();

      expect(estado.timer.activo, isTrue);
      expect(
        find.byType(ActionChip),
        findsNothing,
        reason: 'issue 2: the picker is replaced by the countdown view',
      );
      expect(find.text(l10n.cancelTimer), findsOneWidget);
      expect(
        find.text(l10n.durationMinutesOnly(5)),
        findsOneWidget,
        reason: 'issue 2: the remaining time is now surfaced live',
      );

      // `ServicioTimer` starts a REAL periodic Timer -- `addTearDown`
      // callbacks run too late to satisfy the "no pending timers" check
      // (a well-known flutter_test ordering quirk), so it must be
      // cancelled here, inside the test body, before it ends.
      await estado.timer.cancelar();
    },
  );

  testWidgets('reopening the sheet while a timer is already active shows the '
      'countdown immediately, not the duration picker', (tester) async {
    ajustarSuperficieRealista(tester);
    final estado = _estado();
    addTearDown(estado.dispose);
    estado.iniciarTimerDuracion(const Duration(minutes: 10));

    await tester.pumpWidget(_host(estado));
    await tester.tap(find.text('abrir'));
    await tester.pumpAndSettle();

    final l10n = AppLocalizations.of(tester.element(find.text('abrir')));
    expect(find.byType(ActionChip), findsNothing);
    expect(find.text(l10n.cancelTimer), findsOneWidget);
    expect(find.text(l10n.durationMinutesOnly(10)), findsOneWidget);

    // See the comment in the previous test — cancel before the body ends.
    await estado.timer.cancelar();
  });

  testWidgets(
    'cancelling from the countdown view stops the timer and closes the '
    'sheet',
    (tester) async {
      ajustarSuperficieRealista(tester);
      final estado = _estado();
      addTearDown(estado.dispose);
      estado.iniciarTimerDuracion(const Duration(minutes: 10));

      await tester.pumpWidget(_host(estado));
      await tester.tap(find.text('abrir'));
      await tester.pumpAndSettle();

      final l10n = AppLocalizations.of(tester.element(find.text('abrir')));
      final boton = tester.widget<FilledButton>(
        find.widgetWithText(FilledButton, l10n.cancelTimer),
      );
      boton.onPressed!();
      await tester.pumpAndSettle();

      expect(estado.timer.activo, isFalse);
      expect(find.text(l10n.cancelTimer), findsNothing);
    },
  );

  testWidgets(
    'starting a custom duration ALSO keeps the sheet open on the countdown '
    'view, not just the presets',
    (tester) async {
      ajustarSuperficieRealista(tester);
      final estado = _estado();
      addTearDown(estado.dispose);

      await tester.pumpWidget(_host(estado));
      await tester.tap(find.text('abrir'));
      await tester.pumpAndSettle();

      final l10n = AppLocalizations.of(tester.element(find.text('abrir')));
      await tester.tap(find.text(l10n.optionOther));
      await tester.pumpAndSettle();

      // Confirm the custom-duration sub-sheet directly (default prefilled
      // value is already "15" minutes -- see _TimerPersonalizadoSheetState).
      final confirmar = tester.widget<FilledButton>(
        find.widgetWithText(FilledButton, l10n.startTimer),
      );
      confirmar.onPressed!();
      await tester.pumpAndSettle();

      expect(estado.timer.activo, isTrue);
      expect(find.byType(ActionChip), findsNothing);
      expect(find.text(l10n.cancelTimer), findsOneWidget);

      // See the comment in the first test — cancel before the body ends.
      await estado.timer.cancelar();
    },
  );
}