508 lines
17 KiB
Dart
508 lines
17 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 '../../widgets/atoms/custom_button.dart';
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import '../../widgets/atoms/scanner_overlay.dart';
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class CameraCaptureScreen extends StatefulWidget {
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const CameraCaptureScreen({Key? key}) : super(key: key);
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@override
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State<CameraCaptureScreen> createState() => _CameraCaptureScreenState();
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}
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class _CameraCaptureScreenState extends State<CameraCaptureScreen>
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with SingleTickerProviderStateMixin {
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CameraController? _controller;
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CameraDescription? _frontCamera;
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bool _isCameraInitialized = 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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// State rekam video
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bool _isRecording = false;
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bool _isRecordingDone = false;
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XFile? _recordedVideo;
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XFile? _capturedPhoto;
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// Countdown
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int _countdown = 1;
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int _recordingSecondsLeft = 1;
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late FaceDetector _faceDetector;
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late AnimationController _pulseController;
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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 (_isRecordingDone) return 'Video berhasil direkam ✓';
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if (_isRecording) return 'Tetap hadap kamera... ($_recordingSecondsLeft detik)';
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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 — tekan tombol untuk merekam';
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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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_pulseController = AnimationController(
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vsync: this,
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duration: const Duration(milliseconds: 800),
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)..repeat(reverse: true);
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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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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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_controller = 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 _controller!.initialize();
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if (!mounted) return;
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_controller!.startImageStream((CameraImage image) {
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if (!mounted || _isRecording || _isRecordingDone) return;
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_processFrame(image);
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});
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setState(() {
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_isCameraInitialized = true;
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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> _startRecording() async {
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if (!_allChecksValid || _isRecording) return;
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try {
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await _controller!.stopImageStream();
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} catch (_) {}
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XFile? photo;
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try {
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photo = await _controller!.takePicture();
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} catch (e) {
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debugPrint("Gagal mengambil foto: $e");
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}
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setState(() {
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_isRecording = true;
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_recordingSecondsLeft = 1;
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});
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HapticFeedback.mediumImpact();
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await _controller!.prepareForVideoRecording();
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await _controller!.startVideoRecording();
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// Countdown 1 detik
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for (int i = 1; i >= 1; i--) {
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if (!mounted) return;
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setState(() => _recordingSecondsLeft = i);
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await Future.delayed(const Duration(seconds: 1));
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}
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if (!mounted) return;
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final video = await _controller!.stopVideoRecording();
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HapticFeedback.heavyImpact();
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setState(() {
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_isRecording = false;
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_isRecordingDone = true;
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_recordedVideo = video;
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_capturedPhoto = photo;
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});
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}
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void _retake() {
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setState(() {
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_isRecording = false;
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_isRecordingDone = false;
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_recordedVideo = null;
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_capturedPhoto = 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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_controller!.startImageStream((CameraImage image) {
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if (!mounted || _isRecording || _isRecordingDone) return;
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_processFrame(image);
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});
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}
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void _useVideo() {
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if (_recordedVideo != null) {
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Navigator.pop(context, {
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'video': File(_recordedVideo!.path),
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'photo': _capturedPhoto != null ? File(_capturedPhoto!.path) : null,
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});
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}
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}
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@override
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void dispose() {
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_pulseController.dispose();
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_controller?.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.close, 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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// Preview kamera
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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: _controller!.value.previewSize?.height ??
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MediaQuery.of(context).size.width,
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height: _controller!.value.previewSize?.width ??
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MediaQuery.of(context).size.height,
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child: CameraPreview(_controller!),
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),
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),
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)
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else
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const Center(child: CircularProgressIndicator(color: Colors.white)),
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// Overlay sambil recording: REC badge + countdown besar
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if (_isRecording)
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Positioned.fill(
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child: Container(
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color: Colors.black.withOpacity(0.15),
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child: Center(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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const SizedBox(height: 80),
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AnimatedBuilder(
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animation: _pulseController,
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builder: (context, child) => Container(
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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: Colors.red.withOpacity(
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0.7 + 0.3 * _pulseController.value),
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borderRadius: BorderRadius.circular(8),
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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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Container(
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width: 10,
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height: 10,
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decoration: const BoxDecoration(
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color: Colors.white,
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shape: BoxShape.circle,
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),
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),
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const SizedBox(width: 8),
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const Text('REC',
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style: TextStyle(
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color: Colors.white,
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fontWeight: FontWeight.bold,
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fontSize: 14)),
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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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// Scanner overlay
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ScannerOverlay(
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borderColor: _isRecordingDone
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? AppTheme.statusGreen
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: _isRecording
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? Colors.red
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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: !_isRecordingDone,
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),
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// Header info
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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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_isRecording
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? 'Merekam Video...'
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: _isRecordingDone
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? 'Video Siap'
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: 'Rekam Video 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:
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Border.all(color: Colors.white.withOpacity(0.3)),
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),
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child: Text(
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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: _isRecordingDone
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? AppTheme.statusGreen
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: _isRecording
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? Colors.red.shade200
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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 (sebelum rekam)
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if (!_isRecording && !_isRecordingDone) ...[
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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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// Countdown bundar besar saat merekam
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if (_isRecording) ...[
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const SizedBox(height: 20),
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Container(
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width: 72,
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height: 72,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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border: Border.all(color: Colors.red, width: 3),
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color: Colors.black.withOpacity(0.4),
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),
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child: Center(
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child: Text(
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'$_recordingSecondsLeft',
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style: const TextStyle(
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color: Colors.white,
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fontSize: 36,
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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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],
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),
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),
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// Tombol bawah
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Positioned(
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bottom: 40,
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left: 20,
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right: 20,
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child: _isRecordingDone
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? Row(
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mainAxisAlignment: MainAxisAlignment.spaceEvenly,
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children: [
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Expanded(
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child: CustomButton(
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text: "Rekam Ulang",
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type: ButtonType.secondary,
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onPressed: _retake,
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icon: Icons.refresh,
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),
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),
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const SizedBox(width: 16),
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Expanded(
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child: CustomButton(
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text: "Gunakan",
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type: ButtonType.primary,
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onPressed: _useVideo,
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icon: Icons.check,
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backgroundColor: AppTheme.statusGreen,
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),
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),
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],
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)
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: _isRecording
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? const SizedBox.shrink()
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: Center(
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child: GestureDetector(
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onTap: _allChecksValid ? _startRecording : null,
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child: Container(
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width: 76,
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height: 76,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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border: Border.all(
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color: _allChecksValid
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? Colors.white.withOpacity(0.8)
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: Colors.white.withOpacity(0.3),
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width: 6,
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),
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color: _allChecksValid
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? Colors.red.withOpacity(0.8)
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: Colors.white.withOpacity(0.05),
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boxShadow: _allChecksValid
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? [
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BoxShadow(
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color: Colors.red.withOpacity(0.4),
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blurRadius: 16,
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)
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]
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: null,
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),
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child: const Icon(
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Icons.videocam,
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color: Colors.white,
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size: 30,
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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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