// Guided-setup wizard — the three explained answer steps. Verifies
// that options render as localized cards with their one-line
// explanation (no English enum humanization) and that Weiter/Zurück
// walk the steps. The review step calls the CLI (a subprocess) and is
// out of scope for a widget test.

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';

import 'package:chain_studio/l10n/app_localizations.dart';
import 'package:chain_studio/widgets/guided_setup_dialog.dart';

Widget _host() => MaterialApp(
  locale: const Locale('de'),
  localizationsDelegates: AppLocalizations.localizationsDelegates,
  supportedLocales: AppLocalizations.supportedLocales,
  home: Builder(
    builder: (context) => Scaffold(
      body: Center(
        child: ElevatedButton(
          onPressed: () => GuidedSetupDialog.show(context),
          child: const Text('open'),
        ),
      ),
    ),
  ),
);

void main() {
  testWidgets('step 1 shows scenario options in German with explanations', (
    tester,
  ) async {
    await tester.pumpWidget(_host());
    await tester.tap(find.text('open'));
    await tester.pumpAndSettle();

    // Step counter + localized (German) scenario labels, not the
    // English enum humanization.
    expect(find.text('Schritt 1 von 3'), findsOneWidget);
    expect(find.text('Regulierter Produktivbetrieb'), findsOneWidget);
    expect(find.text('Erst mal ausprobieren'), findsOneWidget);
    // Each option carries its one-line explanation.
    expect(
      find.textContaining('menschliche Freigabe vor jedem KI-Schritt'),
      findsOneWidget,
    );
    // No leaked English enum labels.
    expect(find.text('Regulated Production'), findsNothing);
    expect(find.text('Trying Out'), findsNothing);
  });

  testWidgets('Weiter/Zurück walk the three answer steps', (tester) async {
    await tester.pumpWidget(_host());
    await tester.tap(find.text('open'));
    await tester.pumpAndSettle();

    // Step 1 → 2 (task).
    await tester.tap(find.text('Weiter'));
    await tester.pumpAndSettle();
    expect(find.text('Schritt 2 von 3'), findsOneWidget);
    expect(find.text('Text aus Dokumenten extrahieren'), findsOneWidget);

    // Step 2 → 3 (environment) shows the two plain-language toggles.
    await tester.tap(find.text('Weiter'));
    await tester.pumpAndSettle();
    expect(find.text('Schritt 3 von 3'), findsOneWidget);
    expect(find.text('Dieser Rechner'), findsOneWidget);
    expect(
      find.text('Vor jedem KI-Schritt einen Menschen um Freigabe bitten'),
      findsOneWidget,
    );

    // Zurück returns to step 2.
    await tester.tap(find.text('Zurück'));
    await tester.pumpAndSettle();
    expect(find.text('Schritt 2 von 3'), findsOneWidget);
  });
}