// Smoke tests — boot the app, navigate to the shell, verify
// each rail destination renders without throwing.

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

import 'package:lawheatmap_app/main.dart';

void main() {
  // Generous surface so NavigationRail + Heatmap fit without
  // overflow warnings.
  const surfaceSize = Size(1400, 900);

  setUp(() {
    TestWidgetsFlutterBinding.ensureInitialized();
  });

  testWidgets('Landing renders brand mark + CTA',
      (WidgetTester tester) async {
    await tester.binding.setSurfaceSize(surfaceSize);
    await tester.pumpWidget(const LawHeatmapApp());
    await tester.pump();
    expect(find.text('F∆I Law-Heatmap'), findsOneWidget);
    expect(
      find.widgetWithText(FilledButton, 'App öffnen (Demo-Modus)'),
      findsOneWidget,
    );
    await tester.pumpWidget(const SizedBox.shrink());
  });

  testWidgets('Tapping CTA reaches the shell and shows the heatmap',
      (WidgetTester tester) async {
    await tester.binding.setSurfaceSize(surfaceSize);
    await tester.pumpWidget(const LawHeatmapApp());
    await tester.pump();
    await tester.tap(
      find.widgetWithText(FilledButton, 'App öffnen (Demo-Modus)'),
    );
    await tester.pump();
    await tester.pump(const Duration(milliseconds: 600));
    expect(find.text('Heatmap'), findsWidgets);
    await tester.pumpWidget(const SizedBox.shrink());
  });
}