import 'package:commons_core/commons_core.dart';
import 'package:flutter/material.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:tane/i18n/strings.g.dart';
import 'package:tane/services/saved_offers_store.dart';
import 'package:tane/ui/favorites_screen.dart';

import '../support/test_support.dart';

Widget _wrap(Widget child) {
  LocaleSettings.setLocaleSync(AppLocale.en);
  return TranslationProvider(
    child: MaterialApp(
      locale: AppLocale.en.flutterLocale,
      supportedLocales: AppLocaleUtils.supportedLocales,
      localizationsDelegates: const [
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
      ],
      home: child,
    ),
  );
}

Offer _offer(String id) => Offer(
  id: id,
  authorPubkeyHex: 'ab',
  summary: 'Tomate $id',
  type: OfferType.gift,
  approxGeohash: 'u09',
);

void main() {
  testWidgets('shows the empty state when nothing is saved', (tester) async {
    final store = SavedOffersStore(InMemorySecretStore());
    // No connection → no relay check, just the local snapshots.
    await tester.pumpWidget(_wrap(FavoritesScreen(savedOffers: store)));
    await tester.pumpAndSettle();

    expect(
      find.text('No favorites yet. Save offers you like from the market.'),
      findsOneWidget,
    );
  });

  testWidgets('lists saved offers newest-first', (tester) async {
    final store = SavedOffersStore(InMemorySecretStore());
    await store.save(_offer('old'), savedAt: 100);
    await store.save(_offer('new'), savedAt: 200);

    await tester.pumpWidget(_wrap(FavoritesScreen(savedOffers: store)));
    await tester.pumpAndSettle();

    expect(find.text('Tomate new'), findsOneWidget);
    expect(find.text('Tomate old'), findsOneWidget);
    final newY = tester.getTopLeft(find.text('Tomate new')).dy;
    final oldY = tester.getTopLeft(find.text('Tomate old')).dy;
    expect(newY, lessThan(oldY)); // newest on top
  });

  testWidgets('the heart removes a favorite', (tester) async {
    final store = SavedOffersStore(InMemorySecretStore());
    await store.save(_offer('1'), savedAt: 100);

    await tester.pumpWidget(_wrap(FavoritesScreen(savedOffers: store)));
    await tester.pumpAndSettle();
    expect(find.text('Tomate 1'), findsOneWidget);

    await tester.tap(find.byKey(const Key('favorites.remove.ab.1')));
    await tester.pumpAndSettle();

    expect(find.text('Tomate 1'), findsNothing);
    expect(await store.isSaved('ab:1'), isFalse);
  });
}