pluriwave/test/widgets/reconnect_ui_test.dart

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/servicios/servicio_audio.dart';
import 'package:pluriwave/tema/pluriwave_tokens.dart';
import 'package:pluriwave/widgets/mini_reproductor.dart';
import 'package:provider/provider.dart';

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

EstadoRadio _estadoRadio(FakeServicioAudio audio) {
  return EstadoRadio(
    audio: audio,
    favoritos: FakeServicioFavoritos(),
    radio: FakeServicioRadio(),
    servicioEcualizador: FakeServicioEcualizador(),
    servicioGrabacion: FakeServicioGrabacionRadioInactiva(),
    iniciarAutomaticamente: false,
  );
}

/// S7-R3-A: while the handler is reconnecting, the UI shows a loading
/// indicator — never an error dialog or snackbar per retry attempt.
void main() {
  testWidgets(
    'estado reconectando muestra indicador de carga, sin dialogo ni snackbar',
    (tester) async {
      final audio = FakeServicioAudio();
      final estado = _estadoRadio(audio);
      addTearDown(estado.dispose);
      await audio.reproducir(emisoraDemo(uuid: 'r1', nombre: 'Radio Uno'));

      await tester.pumpWidget(
        ChangeNotifierProvider<EstadoRadio>.value(
          value: estado,
          child: MaterialApp(
            locale: const Locale('es'),
            localizationsDelegates: AppLocalizations.localizationsDelegates,
            supportedLocales: AppLocalizations.supportedLocales,
            home: const Scaffold(body: MiniReproductor()),
          ),
        ),
      );
      await tester.pumpAndSettle();

      audio.emitirEstado(EstadoReproduccion.reconectando);
      // Two pumps: one delivers the stream event, one rebuilds the frame.
      await tester.pump();
      await tester.pump();

      expect(find.byType(AlertDialog), findsNothing);
      expect(find.byType(SnackBar), findsNothing);
      expect(
        find.byType(CircularProgressIndicator),
        findsOneWidget,
        reason: 'reconectando se presenta como carga, no como error',
      );
      expect(
        find.byIcon(Icons.refresh_rounded),
        findsNothing,
        reason: 'el boton de reintento manual es solo para el estado error',
      );
      expect(find.text('Reconectando...'), findsOneWidget);
    },
  );

  testWidgets('el estado error si muestra el boton de reintento manual', (
    tester,
  ) async {
    final audio = FakeServicioAudio();
    final estado = _estadoRadio(audio);
    addTearDown(estado.dispose);
    await audio.reproducir(emisoraDemo(uuid: 'r1', nombre: 'Radio Uno'));

    await tester.pumpWidget(
      ChangeNotifierProvider<EstadoRadio>.value(
        value: estado,
        child: MaterialApp(
          locale: const Locale('es'),
          localizationsDelegates: AppLocalizations.localizationsDelegates,
          supportedLocales: AppLocalizations.supportedLocales,
          home: const Scaffold(body: MiniReproductor()),
        ),
      ),
    );
    await tester.pumpAndSettle();

    audio.emitirEstado(EstadoReproduccion.error);
    await tester.pump();
    await tester.pump();

    expect(find.byType(AlertDialog), findsNothing);
    expect(find.byIcon(Icons.refresh_rounded), findsOneWidget);
  });

  // WU16: the offline/reconnect banner restyle. `offlineAccent` (added in
  // WU1, previously unused by any screen) tints the connectivity-trouble
  // sub-states so they read as visually distinct from ordinary loading.
  testWidgets(
    'reconnecting state tints the spinner and status label with the offline accent',
    (tester) async {
      final audio = FakeServicioAudio();
      final estado = _estadoRadio(audio);
      addTearDown(estado.dispose);
      await audio.reproducir(emisoraDemo(uuid: 'r1', nombre: 'Radio Uno'));

      await tester.pumpWidget(
        ChangeNotifierProvider<EstadoRadio>.value(
          value: estado,
          child: MaterialApp(
            locale: const Locale('es'),
            localizationsDelegates: AppLocalizations.localizationsDelegates,
            supportedLocales: AppLocalizations.supportedLocales,
            home: const Scaffold(body: MiniReproductor()),
          ),
        ),
      );
      await tester.pumpAndSettle();

      audio.emitirEstado(EstadoReproduccion.reconectando);
      await tester.pump();
      await tester.pump();

      expect(
        tester
            .widget<CircularProgressIndicator>(
              find.byType(CircularProgressIndicator),
            )
            .color,
        PluriWaveTokens.dark.offlineAccent,
      );
      expect(
        tester.widget<Text>(find.text('Reconectando...')).style?.color,
        PluriWaveTokens.dark.offlineAccent,
      );
    },
  );

  testWidgets(
    'plain buffering keeps the default spinner colour, not the offline accent',
    (tester) async {
      final audio = FakeServicioAudio();
      final estado = _estadoRadio(audio);
      addTearDown(estado.dispose);
      await audio.reproducir(emisoraDemo(uuid: 'r1', nombre: 'Radio Uno'));

      await tester.pumpWidget(
        ChangeNotifierProvider<EstadoRadio>.value(
          value: estado,
          child: MaterialApp(
            locale: const Locale('es'),
            localizationsDelegates: AppLocalizations.localizationsDelegates,
            supportedLocales: AppLocalizations.supportedLocales,
            home: const Scaffold(body: MiniReproductor()),
          ),
        ),
      );
      await tester.pumpAndSettle();

      audio.emitirEstado(EstadoReproduccion.cargando);
      await tester.pump();
      await tester.pump();

      expect(
        tester
            .widget<CircularProgressIndicator>(
              find.byType(CircularProgressIndicator),
            )
            .color,
        isNull,
        reason: 'cargando is not a connectivity problem, keep the default',
      );
    },
  );

  testWidgets(
    'error state tints the retry icon and status label with the offline accent',
    (tester) async {
      final audio = FakeServicioAudio();
      final estado = _estadoRadio(audio);
      addTearDown(estado.dispose);
      await audio.reproducir(emisoraDemo(uuid: 'r1', nombre: 'Radio Uno'));

      await tester.pumpWidget(
        ChangeNotifierProvider<EstadoRadio>.value(
          value: estado,
          child: MaterialApp(
            locale: const Locale('es'),
            localizationsDelegates: AppLocalizations.localizationsDelegates,
            supportedLocales: AppLocalizations.supportedLocales,
            home: const Scaffold(body: MiniReproductor()),
          ),
        ),
      );
      await tester.pumpAndSettle();

      audio.emitirEstado(EstadoReproduccion.error);
      await tester.pump();
      await tester.pump();

      expect(
        tester.widget<Icon>(find.byIcon(Icons.refresh_rounded)).color,
        PluriWaveTokens.dark.offlineAccent,
      );
      expect(
        tester.widget<Text>(find.text('Error de conexión')).style?.color,
        PluriWaveTokens.dark.offlineAccent,
      );
    },
  );
}