import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:pluriwave/estado/estado_alarmas.dart';
import 'package:pluriwave/estado/estado_radio.dart';
import 'package:pluriwave/l10n/formato_fechas.dart';
import 'package:pluriwave/l10n/gen/app_localizations.dart';
import 'package:pluriwave/modelos/alarma_musical.dart';
import 'package:pluriwave/modelos/emisora.dart';
import 'package:pluriwave/pantallas/pantalla_alarma_sonando.dart';
import 'package:pluriwave/servicios/servicio_alarmas.dart';
import 'package:pluriwave/servicios/servicio_audio.dart';
import 'package:pluriwave/tema/pluriwave_theme.dart';
import 'package:provider/provider.dart';
import 'package:shared_preferences/shared_preferences.dart';

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

/// Closing batch (items 9.4, 9.10, audit id 2521) -- the ringing screen.
/// Mirrors `pantalla_alarma_sonando_tier4_test.dart`'s own harness (kept as
/// a local copy, not a shared import, matching this file's established
/// precedent of small helper duplication over cross-test-file coupling).
Future<void> _montarPantalla(WidgetTester tester) async {
  tester.view.physicalSize = const Size(1440, 3200);
  tester.view.devicePixelRatio = 1.0;
  addTearDown(tester.view.resetPhysicalSize);
  addTearDown(tester.view.resetDevicePixelRatio);

  final audio = FakeServicioAudio();
  audio.emitirEstado(EstadoReproduccion.reproduciendo);
  final radio = EstadoRadio(
    esPremium: () => true,
    audio: audio,
    favoritos: FakeServicioFavoritos(),
    radio: FakeServicioRadio(),
    servicioEcualizador: FakeServicioEcualizador(),
    servicioGrabacion: FakeServicioGrabacionRadioInactiva(),
    iniciarAutomaticamente: false,
  );
  addTearDown(radio.dispose);

  final android = FakePuertoAlarmasAndroid();
  final estadoAlarmas = EstadoAlarmas(
    esPremium: () => true,
    servicio: ServicioAlarmas(reloj: () => DateTime(2026, 6, 11, 7, 0)),
    android: android,
    iniciarAutomaticamente: false,
  );
  addTearDown(estadoAlarmas.dispose);
  addTearDown(android.dispose);
  await estadoAlarmas.guardarAlarma(
    const AlarmaMusical(
      id: 'tier5-1',
      nombre: 'Despertar',
      hora: 7,
      minuto: 30,
      tipoProgramacion: TipoProgramacionAlarma.diaria,
      diasSemana: [],
      snoozeMinutos: 10,
      emisora: Emisora(
        uuid: 'e1',
        nombre: 'Radio Uno',
        url: 'https://radio.example/stream',
      ),
    ),
  );

  await tester.pumpWidget(
    MultiProvider(
      providers: [
        ChangeNotifierProvider<EstadoRadio>.value(value: radio),
        ChangeNotifierProvider<EstadoAlarmas>.value(value: estadoAlarmas),
      ],
      child: MaterialApp(
        locale: const Locale('es'),
        localizationsDelegates: AppLocalizations.localizationsDelegates,
        supportedLocales: AppLocalizations.supportedLocales,
        theme: PluriWaveTheme.dark(),
        home: const SizedBox.shrink(),
      ),
    ),
  );
  final navigator = tester.state<NavigatorState>(find.byType(Navigator));
  unawaited(
    navigator.push(
      MaterialPageRoute<void>(
        builder:
            (_) => PantallaAlarmaSonando(alarma: estadoAlarmas.alarmas.single),
        fullscreenDialog: true,
      ),
    ),
  );
  await tester.pump();
  await tester.pump(const Duration(milliseconds: 50));
}

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

  testWidgets('visual fidelity (audit 9.4): the date line renders BELOW the '
      'hero time (t4:415-419: pill, then 7:30, then the date)', (tester) async {
    await _montarPantalla(tester);

    final localeTag =
        Localizations.localeOf(
          tester.element(find.byType(PantallaAlarmaSonando)),
        ).toString();
    final esperado = fechaLargaConDiaSemana(localeTag, DateTime.now());

    expect(find.text(esperado), findsOneWidget);

    // Order: pill, then the hero time, then the date line. This test used
    // to assert date-before-time and cited "t4:419" for it — but 419 is
    // simply the source line the date occupies, and in the prototype it
    // comes AFTER the 88px time on line 417. The citation refuted the
    // assertion it was supporting.
    final pillY =
        tester
            .getBottomLeft(find.byKey(const ValueKey('ringing-schedule-pill')))
            .dy;
    final timeY =
        tester
            .getBottomLeft(find.byKey(const ValueKey('ringing-hero-time')))
            .dy;
    final dateY = tester.getTopLeft(find.text(esperado)).dy;
    expect(pillY <= timeY, isTrue, reason: 'pill sits above the time');
    expect(timeY <= dateY, isTrue, reason: 'the date sits below the time');

    // Regression guard: pumpAndSettle must still complete (purely
    // additive static text, no new animation).
    await tester.pumpAndSettle();
  });

  testWidgets(
    'visual fidelity (audit 9.10): the highlighted snooze tile carries a '
    '"usual" qualifier ADDITIVELY -- the original flat label the dismiss '
    'guard finds by text stays fully intact',
    (tester) async {
      await _montarPantalla(tester);

      final l10n = AppLocalizations.of(
        tester.element(find.byType(PantallaAlarmaSonando)),
      );

      // The ORIGINAL flat label must still resolve to exactly one Text --
      // this IS the dismiss-guard's own finder contract.
      expect(find.text(l10n.alarmSnoozeOptionLabel(10)), findsOneWidget);
      // The additive qualifier renders too, but only on the destacado tile.
      expect(find.text(l10n.alarmSnoozeUsualLabel), findsOneWidget);
      expect(find.text(l10n.alarmSnoozeOptionLabel(3)), findsOneWidget);
      expect(find.text(l10n.alarmSnoozeOptionLabel(5)), findsOneWidget);

      // Regression guard: the exact hazard 9.9/9.10 share -- pumpAndSettle
      // must still complete, and the flat label must remain the SAME
      // widget the dismiss guard taps (still inside a FilledButton).
      expect(
        find.ancestor(
          of: find.text(l10n.alarmSnoozeOptionLabel(10)),
          matching: find.byType(FilledButton),
        ),
        findsOneWidget,
      );
      await tester.pumpAndSettle();
    },
  );

  testWidgets(
    'Issue 3 (feedback-pruebas): the gap above the snooze tiles matches the '
    'gap below them (t4:427 draws a uniform gap:12 flex column) -- the '
    'previous 10/14 pair matched neither the prototype nor each other',
    (tester) async {
      await _montarPantalla(tester);
      final l10n = AppLocalizations.of(
        tester.element(find.byType(PantallaAlarmaSonando)),
      );

      final eyebrowBottom =
          tester
              .getBottomLeft(
                find
                    .ancestor(
                      of: find.byIcon(Icons.snooze_rounded),
                      matching: find.byType(Row),
                    )
                    .first,
              )
              .dy;
      final tileDestacado = find.ancestor(
        of: find.text(l10n.alarmSnoozeOptionLabel(10)),
        matching: find.byType(FilledButton),
      );
      final tilesTop = tester.getTopLeft(tileDestacado).dy;
      final tilesBottom = tester.getBottomLeft(tileDestacado).dy;
      final stopButtonTop =
          tester
              .getTopLeft(find.byKey(const ValueKey('ringing-stop-button')))
              .dy;

      expect(
        tilesTop - eyebrowBottom,
        12,
        reason: 't4:427: gap:12 above the snooze tiles',
      );
      expect(
        stopButtonTop - tilesBottom,
        12,
        reason: 't4:427: gap:12 below the snooze tiles, same as above',
      );
    },
  );
}