import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:provider/provider.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:myapp/providers/auth_provider.dart';
import 'package:myapp/providers/bank_provider.dart';
import 'package:myapp/providers/theme_provider.dart';
import 'package:myapp/providers/tx_meta_provider.dart';
import 'package:myapp/screens/overview_screen.dart';
import 'package:myapp/screens/transactions_screen.dart';
import 'package:myapp/services/storage_service.dart';
import 'package:myapp/utils/app_config.dart';
import 'package:myapp/utils/app_theme.dart';

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();

  late StorageService storage;
  late AuthController auth;
  late BankController bank;
  late TxMetaController meta;

  setUp(() async {
    AppConfig.loadForTest();
    SharedPreferences.setMockInitialValues({});
    storage = StorageService();
    await storage.init();
    auth = AuthController(storage);
    await auth.init();
    bank = BankController(storage: storage);
    // seed a couple txs
    // ignore: invalid_use_of_visible_for_testing_member
    meta = TxMetaController(storage);
  });

  testWidgets('overview builds dark', (tester) async {
    FlutterError.onError = (details) {
      fail(details.toString());
    };
    await tester.pumpWidget(
      MultiProvider(
        providers: [
          ChangeNotifierProvider<AuthController>.value(value: auth),
          ChangeNotifierProvider(create: (_) => ThemeController(storage)),
          ChangeNotifierProvider<TxMetaController>.value(value: meta),
          ChangeNotifierProvider<BankController>.value(value: bank),
        ],
        child: MaterialApp(
          theme: AppTheme.light(),
          darkTheme: AppTheme.dark(),
          themeMode: ThemeMode.dark,
          home: const OverviewScreen(),
        ),
      ),
    );
    await tester.pump();
    await tester.pump(const Duration(seconds: 1));
    expect(tester.takeException(), isNull);
    expect(find.text('Overview'), findsOneWidget);
  });

  testWidgets('transactions builds dark', (tester) async {
    await tester.pumpWidget(
      MultiProvider(
        providers: [
          ChangeNotifierProvider<AuthController>.value(value: auth),
          ChangeNotifierProvider(create: (_) => ThemeController(storage)),
          ChangeNotifierProvider<TxMetaController>.value(value: meta),
          ChangeNotifierProvider<BankController>.value(value: bank),
        ],
        child: MaterialApp(
          theme: AppTheme.light(),
          darkTheme: AppTheme.dark(),
          themeMode: ThemeMode.dark,
          home: const TransactionsScreen(),
        ),
      ),
    );
    await tester.pump();
    await tester.pump(const Duration(seconds: 1));
    expect(tester.takeException(), isNull);
  });
}