558 lines
20 KiB
Dart
558 lines
20 KiB
Dart
import 'dart:io';
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import 'dart:ui';
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import 'package:camera/camera.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:google_mlkit_face_detection/google_mlkit_face_detection.dart';
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import '../../core/theme.dart';
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import '../../core/utils/camera_utils.dart';
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import '../../repositories/face_repository.dart';
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import '../../widgets/atoms/custom_button.dart';
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import '../../widgets/atoms/scanner_overlay.dart';
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class FaceTestScreen extends StatefulWidget {
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const FaceTestScreen({super.key});
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@override
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State<FaceTestScreen> createState() => _FaceTestScreenState();
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}
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class _FaceTestScreenState extends State<FaceTestScreen> {
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CameraController? _cameraController;
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CameraDescription? _frontCamera;
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bool _isCameraInitialized = false;
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bool _isVerifying = false;
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bool _showResult = false;
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bool _isProcessingFrame = false;
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// Quality gate
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bool _isFaceDetected = false;
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bool _isDistanceOk = false;
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bool _isBrightnessOk = false;
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double _faceRatio = 0.0;
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double _brightness = 0.0;
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bool? _verified;
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double? _confidence;
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double? _svmConfidence;
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String? _statusText;
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String? _errorMessage;
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late FaceDetector _faceDetector;
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bool get _allChecksValid =>
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_isFaceDetected && _isDistanceOk && _isBrightnessOk;
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String get _qualityMessage {
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if (!_isFaceDetected) return 'Arahkan wajah ke dalam bingkai';
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if (_faceRatio < 0.20) return 'Terlalu jauh, dekatkan wajah';
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if (_faceRatio > 0.70) return 'Terlalu dekat, mundur sedikit';
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if (!_isBrightnessOk) return 'Pencahayaan kurang terang';
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return 'Siap — mulai verifikasi';
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}
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Color get _resultColor {
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if (_statusText == 'APPROVED') return AppTheme.statusGreen;
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if (_statusText == 'PENDING') return AppTheme.statusYellow;
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return AppTheme.statusRed;
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}
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@override
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void initState() {
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super.initState();
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_faceDetector = FaceDetector(
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options: FaceDetectorOptions(
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enableClassification: false,
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enableLandmarks: false,
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enableContours: false,
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enableTracking: false,
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performanceMode: FaceDetectorMode.fast,
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),
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);
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_initializeCamera();
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}
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Future<void> _initializeCamera() async {
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try {
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final cameras = await availableCameras();
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_frontCamera = cameras.firstWhere(
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(camera) => camera.lensDirection == CameraLensDirection.front,
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orElse: () => cameras.first,
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);
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_cameraController = CameraController(
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_frontCamera!,
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ResolutionPreset.medium,
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enableAudio: false,
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imageFormatGroup: Platform.isAndroid
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? ImageFormatGroup.nv21
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: ImageFormatGroup.bgra8888,
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);
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await _cameraController!.initialize();
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if (!mounted) return;
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_startQualityStream();
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setState(() {
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_isCameraInitialized = true;
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});
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} catch (e) {
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debugPrint("Error initializing camera: $e");
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}
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}
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void _startQualityStream() {
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_cameraController!.startImageStream((CameraImage image) {
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if (!mounted || _showResult || _isVerifying) return;
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_processFrame(image);
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});
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}
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void _processFrame(CameraImage image) async {
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if (_isProcessingFrame) return;
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_isProcessingFrame = true;
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try {
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_brightness = BrightnessUtils.calculateBrightness(image);
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_isBrightnessOk = _brightness > 60;
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final inputImage = CameraUtils.inputImageFromCameraImage(
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image: image,
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camera: _frontCamera!,
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rotation: CameraUtils.rotationIntToImageRotation(
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_frontCamera!.sensorOrientation),
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);
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final faces = await _faceDetector.processImage(inputImage);
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if (faces.isNotEmpty) {
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final face = faces.first;
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final imageWidth = image.width.toDouble();
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_faceRatio = face.boundingBox.width / imageWidth;
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_isFaceDetected = true;
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_isDistanceOk = _faceRatio >= 0.20 && _faceRatio <= 0.70;
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} else {
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_isFaceDetected = false;
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_isDistanceOk = false;
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_faceRatio = 0.0;
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}
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if (mounted) setState(() {});
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} catch (e) {
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debugPrint("Error processing frame: $e");
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} finally {
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_isProcessingFrame = false;
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}
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}
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Future<void> _captureAndVerify() async {
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if (_cameraController == null || _isVerifying || !_allChecksValid) return;
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setState(() {
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_isVerifying = true;
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_showResult = false;
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_errorMessage = null;
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});
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try {
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try {
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await _cameraController!.stopImageStream();
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} catch (_) {}
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final XFile photo = await _cameraController!.takePicture();
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final File imageFile = File(photo.path);
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final result =
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await FaceRepository().verifyFace(imageFile, tipe: 'test');
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if (mounted) {
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setState(() {
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_verified = result['verified'] == true;
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_confidence = (result['confidence'] is num)
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? (result['confidence'] as num).toDouble()
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: null;
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_svmConfidence = (result['svm_confidence'] is num)
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? (result['svm_confidence'] as num).toDouble()
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: null;
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_statusText = result['verification_status']?.toString() ??
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result['status']?.toString();
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_showResult = true;
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_isVerifying = false;
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});
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if (_verified == true) {
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HapticFeedback.lightImpact();
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} else {
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HapticFeedback.heavyImpact();
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}
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}
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} catch (e) {
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if (mounted) {
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setState(() {
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_verified = false;
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_errorMessage = e.toString().replaceAll('Exception: ', '');
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_showResult = true;
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_isVerifying = false;
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});
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HapticFeedback.heavyImpact();
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}
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}
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}
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void _resetTest() {
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setState(() {
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_showResult = false;
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_verified = null;
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_confidence = null;
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_svmConfidence = null;
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_statusText = null;
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_errorMessage = null;
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_isFaceDetected = false;
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_isDistanceOk = false;
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_isBrightnessOk = false;
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});
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_startQualityStream();
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}
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@override
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void dispose() {
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_cameraController?.dispose();
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_faceDetector.close();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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backgroundColor: Colors.black,
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extendBodyBehindAppBar: true,
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appBar: AppBar(
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backgroundColor: Colors.transparent,
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elevation: 0,
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leading: IconButton(
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icon: Container(
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padding: const EdgeInsets.all(8),
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decoration: BoxDecoration(
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color: Colors.black.withOpacity(0.5),
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shape: BoxShape.circle,
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),
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child: const Icon(Icons.arrow_back_ios_new,
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color: Colors.white, size: 16),
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),
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onPressed: () => Navigator.pop(context),
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),
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),
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body: Stack(
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children: [
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if (_isCameraInitialized)
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SizedBox.expand(
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child: FittedBox(
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fit: BoxFit.cover,
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child: SizedBox(
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width: _cameraController!.value.previewSize?.height ??
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MediaQuery.of(context).size.width,
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height: _cameraController!.value.previewSize?.width ??
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MediaQuery.of(context).size.height,
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child: CameraPreview(_cameraController!),
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),
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),
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)
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else
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const Center(
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child: CircularProgressIndicator(color: Colors.white),
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),
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ScannerOverlay(
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borderColor: _showResult
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? _resultColor
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: _allChecksValid
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? AppTheme.statusGreen
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: _isFaceDetected
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? AppTheme.statusYellow
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: AppTheme.primaryBlue,
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isScanning: _isVerifying || (!_showResult && !_isVerifying),
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),
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Positioned(
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top: MediaQuery.of(context).padding.top + kToolbarHeight + 20,
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left: 20,
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right: 20,
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child: Column(
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children: [
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Text(
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"Test Pengenalan Wajah",
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style: AppTheme.heading3.copyWith(color: Colors.white),
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),
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const SizedBox(height: 10),
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ClipRRect(
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borderRadius: BorderRadius.circular(20),
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child: BackdropFilter(
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filter: ImageFilter.blur(sigmaX: 10, sigmaY: 10),
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child: Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 20, vertical: 10),
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decoration: BoxDecoration(
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color: Colors.white.withOpacity(0.15),
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borderRadius: BorderRadius.circular(20),
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border: Border.all(
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color: Colors.white.withOpacity(0.3)),
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),
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child: Text(
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_isVerifying
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? "Memverifikasi wajah..."
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: _showResult
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? (_statusText == 'APPROVED'
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? "Wajah Terverifikasi ✓"
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: _statusText == 'PENDING'
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? "Verifikasi Meragukan ⚠️"
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: "Wajah Tidak Cocok ✗")
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: _qualityMessage,
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textAlign: TextAlign.center,
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style: AppTheme.bodyLarge.copyWith(
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color: _showResult
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? _resultColor
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: _allChecksValid
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? AppTheme.statusGreen
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: Colors.white,
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fontWeight: FontWeight.bold,
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),
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),
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),
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),
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),
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// Quality chips
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if (!_showResult && !_isVerifying) ...[
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const SizedBox(height: 10),
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Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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_buildChip(Icons.face, 'Wajah', _isFaceDetected),
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const SizedBox(width: 6),
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_buildChip(Icons.straighten, 'Jarak', _isDistanceOk),
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const SizedBox(width: 6),
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_buildChip(
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Icons.wb_sunny_outlined, 'Cahaya', _isBrightnessOk),
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],
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),
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],
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],
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),
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),
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if (_showResult)
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Positioned(
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bottom: 120,
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left: 20,
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right: 20,
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child: AnimatedOpacity(
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opacity: _showResult ? 1.0 : 0.0,
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duration: const Duration(milliseconds: 300),
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child: ClipRRect(
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borderRadius: BorderRadius.circular(AppTheme.radiusLg),
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child: BackdropFilter(
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filter: ImageFilter.blur(sigmaX: 15, sigmaY: 15),
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child: Container(
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padding: const EdgeInsets.all(AppTheme.spacingLg),
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decoration: BoxDecoration(
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color: Colors.white.withOpacity(0.9),
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borderRadius:
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BorderRadius.circular(AppTheme.radiusLg),
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border: Border.all(
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color: Colors.white.withOpacity(0.4)),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.1),
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blurRadius: 20,
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offset: const Offset(0, 10),
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)
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],
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),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Container(
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padding: const EdgeInsets.all(12),
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decoration: BoxDecoration(
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color: _resultColor.withOpacity(0.1),
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shape: BoxShape.circle,
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),
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child: Icon(
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_statusText == 'APPROVED'
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? Icons.check_circle
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: _statusText == 'PENDING'
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? Icons.warning_amber_rounded
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: Icons.cancel,
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color: _resultColor,
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size: 40,
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),
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),
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const SizedBox(height: 12),
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Text(
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_statusText == 'APPROVED'
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? "Verifikasi Berhasil"
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: _statusText == 'PENDING'
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? "Verifikasi Diragukan"
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: "Verifikasi Gagal",
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style: AppTheme.heading3.copyWith(
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color: _resultColor,
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),
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),
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const SizedBox(height: 4),
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if (_confidence != null)
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Container(
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margin: const EdgeInsets.only(top: 8),
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padding: const EdgeInsets.symmetric(
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horizontal: 16, vertical: 8),
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decoration: BoxDecoration(
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color: AppTheme.bgLight,
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borderRadius: BorderRadius.circular(
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AppTheme.radiusMd),
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),
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child: Column(
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children: [
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Text(
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"Confidence: ${(_confidence! * 100).toStringAsFixed(1)}%",
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style: AppTheme.bodyMedium.copyWith(
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color: AppTheme.textSecondary,
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fontWeight: FontWeight.w600,
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),
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),
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const SizedBox(height: 2),
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Text(
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_confidence! >= 0.75
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? "Sangat cocok (≥ 75%)"
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: _confidence! >= 0.55
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? "Meragukan (55-74%)"
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: "Tidak cocok (< 55%)",
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style: AppTheme.bodySmall.copyWith(
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color: _confidence! >= 0.75
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? AppTheme.statusGreen
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: _confidence! >= 0.55
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? AppTheme.statusYellow
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: AppTheme.statusRed,
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),
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),
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if (_svmConfidence != null) ...[
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const SizedBox(height: 8),
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const Divider(),
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const SizedBox(height: 8),
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Text(
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"SVM Conf: ${(_svmConfidence! * 100).toStringAsFixed(1)}%",
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style:
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AppTheme.labelMedium.copyWith(
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color: AppTheme.textSecondary,
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fontFamily: 'monospace',
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),
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),
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],
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],
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),
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),
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if (_statusText != null)
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Padding(
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padding: const EdgeInsets.only(top: 12),
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child: Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 14, vertical: 6),
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decoration: BoxDecoration(
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color:
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AppTheme.primaryBlue.withOpacity(0.1),
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borderRadius: BorderRadius.circular(
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AppTheme.radiusFull),
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),
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child: Text(
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"Status: $_statusText",
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style: AppTheme.labelMedium.copyWith(
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color: AppTheme.primaryBlue,
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),
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),
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),
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),
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if (_errorMessage != null)
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Padding(
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padding: const EdgeInsets.only(top: 12),
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child: Text(
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_errorMessage!,
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textAlign: TextAlign.center,
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style: AppTheme.bodySmall.copyWith(
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color: AppTheme.statusRed,
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),
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),
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),
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],
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),
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),
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),
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),
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),
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),
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Positioned(
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bottom: 30,
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left: 20,
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right: 20,
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child: Column(
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children: [
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if (!_showResult && !_isVerifying)
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SizedBox(
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width: double.infinity,
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child: CustomButton(
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text: "Mulai Verifikasi",
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icon: Icons.face_rounded,
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onPressed: _allChecksValid && _isCameraInitialized
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? _captureAndVerify
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: null,
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backgroundColor: _allChecksValid
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? AppTheme.primaryBlue
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: AppTheme.primaryDark.withOpacity(0.5),
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),
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),
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if (_isVerifying)
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const CircularProgressIndicator(color: Colors.white),
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if (_showResult)
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Row(
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children: [
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Expanded(
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child: CustomButton(
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text: "Coba Lagi",
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type: ButtonType.primary,
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onPressed: _resetTest,
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),
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),
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],
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),
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],
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),
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),
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],
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),
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);
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}
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Widget _buildChip(IconData icon, String label, bool isOk) {
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final color = isOk ? AppTheme.statusGreen : Colors.white.withOpacity(0.4);
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return Container(
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padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
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decoration: BoxDecoration(
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color: color.withOpacity(0.15),
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borderRadius: BorderRadius.circular(16),
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border: Border.all(color: color.withOpacity(0.4)),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(isOk ? Icons.check_circle : icon, color: color, size: 12),
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const SizedBox(width: 4),
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Text(label,
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style: TextStyle(
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color: color, fontSize: 10, fontWeight: FontWeight.w600)),
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],
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),
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);
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}
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}
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