import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:pluriwave/l10n/gen/app_localizations.dart';
import 'package:pluriwave/widgets/pluri_icon.dart';
import 'package:pluriwave/widgets/pluri_station_art_fallback.dart';

/// Issue 6 (feedback-pruebas): the shared station-art fallback extracted
/// from `TarjetaEmisora`'s original `_fallbackArtFor`. The formula and asset
/// order are pinned exactly — `navegacion_auto_test.dart`'s
/// `indiceArtePara`/`artUriPara` tests mirror the SAME formula independently
/// (protected file, empty diff vs main) and must keep agreeing with this
/// widget without either suite importing the other.
void main() {
  Widget host(Widget child) {
    return MaterialApp(
      locale: const Locale('en'),
      localizationsDelegates: AppLocalizations.localizationsDelegates,
      supportedLocales: AppLocalizations.supportedLocales,
      home: Scaffold(body: SizedBox(width: 60, height: 60, child: child)),
    );
  }

  test('artFor reproduces the canonical aurora/cosmic/pulse/nova order '
      '(same formula as navegacion_auto.dart\'s indiceArtePara)', () {
    // Single-letter seeds whose codeUnit % 4 covers all 4 indices, mirroring
    // navegacion_auto_test.dart's own fixture exactly: 'd'(100)->0 aurora,
    // 'a'(97)->1 cosmic, 'b'(98)->2 pulse, 'c'(99)->3 nova.
    expect(
      PluriStationArtFallback.artFor('d'),
      'assets/images/station_art_aurora.png',
    );
    expect(
      PluriStationArtFallback.artFor('a'),
      'assets/images/station_art_cosmic.png',
    );
    expect(
      PluriStationArtFallback.artFor('b'),
      'assets/images/station_art_pulse.png',
    );
    expect(
      PluriStationArtFallback.artFor('c'),
      'assets/images/station_art_nova.png',
    );
  });

  test('artFor is deterministic for a given seed (same station always picks '
      'the same art)', () {
    const seed = 'uuid-1234-abcd-real-looking';
    expect(
      PluriStationArtFallback.artFor(seed),
      PluriStationArtFallback.artFor(seed),
    );
  });

  testWidgets(
    'renders the deterministic station-art asset plus a centred player glyph',
    (tester) async {
      await tester.pumpWidget(
        host(const PluriStationArtFallback(seed: 'd', iconSize: 22)),
      );
      await tester.pump();

      // Scoped by asset-name prefix, not `find.byType(Image).first` — the
      // player glyph (`PluriIcon`) ALSO renders via its own `Image.asset`
      // internally, so a bare type match would be ambiguous.
      final arte = tester
          .widgetList<Image>(find.byType(Image))
          .firstWhere(
            (img) =>
                img.image is AssetImage &&
                (img.image as AssetImage).assetName.startsWith(
                  'assets/images/station_art_',
                ),
          );
      expect(
        (arte.image as AssetImage).assetName,
        'assets/images/station_art_aurora.png',
      );

      final icono = tester.widget<PluriIcon>(find.byType(PluriIcon));
      expect(icono.glyph, PluriIconGlyph.player);
      expect(icono.variant, PluriIconVariant.activeGlow);
      expect(icono.size, 22);
    },
  );
}