import 'package:camera/camera.dart';
import 'package:finger_scanner/domain/usecases/scan_fingerprint.dart';
import 'package:finger_scanner/presentation/providers/scanner_provider.dart';
import 'package:finger_scanner/data/repositories/scanner_repository_impl.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:mocktail/mocktail.dart';

class MockScannerRepository extends Mock implements ScannerRepositoryImpl {}

class MockScanFingerprint extends Mock implements ScanFingerprint {}

class MockCameraController extends Mock implements CameraController {}

void main() {
  late MockScannerRepository mockRepository;
  late MockScanFingerprint mockScanUseCase;

  setUp(() {
    mockRepository = MockScannerRepository();
    mockScanUseCase = MockScanFingerprint();
  });

  test('ScannerNotifier initializes with ScannerInitial', () {
    final container = ProviderContainer(
      overrides: [
        scannerRepositoryProvider.overrideWithValue(mockRepository),
        scanFingerprintUseCaseProvider.overrideWithValue(mockScanUseCase),
      ],
    );
    addTearDown(container.dispose);

    expect(container.read(scannerProvider), isA<ScannerInitial>());
  });

  test(
    'startSimulation switches state to ScannerReady with isSimulation=true',
    () {
      final container = ProviderContainer(
        overrides: [
          scannerRepositoryProvider.overrideWithValue(mockRepository),
          scanFingerprintUseCaseProvider.overrideWithValue(mockScanUseCase),
        ],
      );
      addTearDown(container.dispose);

      final notifier = container.read(scannerProvider.notifier);
      notifier.startSimulation();

      final state = container.read(scannerProvider);
      expect(state, isA<ScannerReady>());
      expect((state as ScannerReady).isSimulation, true);
      expect(state.controller, null);
    },
  );
}