756 lines
28 KiB
Dart
756 lines
28 KiB
Dart
import 'dart:async'; // Timer
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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_riverpod/flutter_riverpod.dart';
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import 'package:hive_flutter/hive_flutter.dart';
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import 'package:path/path.dart' show join;
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import 'package:path_provider/path_provider.dart';
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import 'package:uuid/uuid.dart';
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import 'package:gal/gal.dart';
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import '../services/gemini_service.dart';
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import '../services/ocr_service.dart';
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import '../widgets/analyzing_dialog.dart';
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import '../models/sake_item.dart';
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import '../theme/app_theme.dart';
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import 'package:lucide_icons/lucide_icons.dart';
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import 'package:image_picker/image_picker.dart'; // Gallery & Camera
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import '../models/user_profile.dart';
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import '../providers/theme_provider.dart'; // userProfileProvider
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enum CameraMode {
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createItem,
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returnPath,
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}
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class CameraScreen extends ConsumerStatefulWidget {
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final CameraMode mode;
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const CameraScreen({super.key, this.mode = CameraMode.createItem});
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@override
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ConsumerState<CameraScreen> createState() => _CameraScreenState();
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}
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class _CameraScreenState extends ConsumerState<CameraScreen> with SingleTickerProviderStateMixin, WidgetsBindingObserver {
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CameraController? _controller;
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Future<void>? _initializeControllerFuture;
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bool _isTakingPicture = false;
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DateTime? _quotaLockoutTime;
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// Phase 3-B: Focus & Zoom
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double _minZoom = 1.0;
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double _maxZoom = 1.0;
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double _currentZoom = 1.0;
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double _baseScale = 1.0; // For pinch reference
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// Phase 3-B2: Exposure
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double _minExposure = 0.0;
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double _maxExposure = 0.0;
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double _currentExposureOffset = 0.0;
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Offset? _focusPoint;
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bool _showFocusRing = false;
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Timer? _focusRingTimer;
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DateTime? _lastExposureUpdate; // Throttling state
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@override
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void initState() {
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super.initState();
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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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final firstCamera = cameras.first;
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_controller = CameraController(
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firstCamera,
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ResolutionPreset.high,
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enableAudio: false,
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imageFormatGroup: ImageFormatGroup.jpeg,
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);
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_initializeControllerFuture = _controller!.initialize().then((_) async {
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if (!mounted) return;
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// [Phase 3-B] Get Zoom Range
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_minZoom = await _controller!.getMinZoomLevel();
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_maxZoom = await _controller!.getMaxZoomLevel();
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// [Phase 3-B2] Get Exposure Range
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_minExposure = await _controller!.getMinExposureOffset();
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_maxExposure = await _controller!.getMaxExposureOffset();
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// [Phase 3-B] Set Auto Focus Mode
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await _controller!.setFocusMode(FocusMode.auto);
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setState(() {});
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});
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}
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@override
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void dispose() {
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_controller?.dispose();
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_focusRingTimer?.cancel();
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super.dispose();
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}
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// ... (Keep existing methods: _capturedImages, _takePicture, _analyzeImages)
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double? _pendingExposureValue;
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bool _isUpdatingExposure = false;
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Future<void> _setExposureSafe(double value) async {
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_pendingExposureValue = value;
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if (_isUpdatingExposure) return;
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_isUpdatingExposure = true;
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while (_pendingExposureValue != null) {
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final valueToSet = _pendingExposureValue!;
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_pendingExposureValue = null;
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try {
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if (_controller != null && _controller!.value.isInitialized) {
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await _controller!.setExposureOffset(valueToSet);
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}
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} catch (e) {
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debugPrint('Exposure update error: $e');
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}
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}
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_isUpdatingExposure = false;
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}
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void _onTapFocus(TapUpDetails details, BoxConstraints constraints) async {
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if (_controller == null || !_controller!.value.isInitialized) return;
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// Normalizing coordinates (0.0 - 1.0)
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final offset = Offset(
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details.localPosition.dx / constraints.maxWidth,
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details.localPosition.dy / constraints.maxHeight,
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);
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try {
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await _controller!.setFocusPoint(offset);
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await _controller!.setFocusMode(FocusMode.auto);
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} catch (e) {
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// Some devices might not support focus point
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debugPrint('Focus failed: $e');
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}
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if (!mounted) return;
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setState(() {
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_focusPoint = details.localPosition;
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_showFocusRing = true;
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});
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_focusRingTimer?.cancel();
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_focusRingTimer = Timer(const Duration(milliseconds: 1000), () {
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if (mounted) setState(() => _showFocusRing = false);
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});
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}
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void _onScaleStart(ScaleStartDetails details) {
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_baseScale = _currentZoom;
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}
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Future<void> _onScaleUpdate(ScaleUpdateDetails details) async {
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if (_controller == null || !_controller!.value.isInitialized) return;
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// Calculate new zoom level
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final newZoom = (_baseScale * details.scale).clamp(_minZoom, _maxZoom);
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// Optimize: 0.1 increments (Prevent jitter)
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if ((newZoom - _currentZoom).abs() < 0.1) return;
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try {
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await _controller!.setZoomLevel(newZoom);
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setState(() => _currentZoom = newZoom);
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} catch (e) {
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debugPrint('Zoom failed: $e');
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}
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}
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final List<String> _capturedImages = [];
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Future<void> _takePicture() async {
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// Check Quota Lockout
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if (_quotaLockoutTime != null) {
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final remaining = _quotaLockoutTime!.difference(DateTime.now());
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if (remaining.isNegative) {
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setState(() => _quotaLockoutTime = null); // Reset
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} else {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('AI利用制限中です。あと${remaining.inSeconds}秒お待ちください。')),
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);
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return;
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}
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}
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if (_isTakingPicture || _controller == null || !_controller!.value.isInitialized) {
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return;
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}
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setState(() {
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_isTakingPicture = true;
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});
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try {
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await _initializeControllerFuture;
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final image = await _controller!.takePicture();
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// Save image locally (App Sandbox)
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final directory = await getApplicationDocumentsDirectory();
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final String imagePath = join(directory.path, '${const Uuid().v4()}.jpg');
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await image.saveTo(imagePath);
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// Save to Gallery (Public) - Phase 4: Data Safety
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try {
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await Gal.putImage(imagePath);
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debugPrint('Saved to Gallery: $imagePath');
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} catch (e) {
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debugPrint('Gallery Save Error: $e');
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// Don't block flow, but maybe notify?
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('ギャラリー保存に失敗しました: $e'), duration: const Duration(seconds: 1)),
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);
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}
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}
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if (!mounted) return;
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_handleCapturedImage(imagePath);
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} catch (e) {
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debugPrint('Capture Error: $e');
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} finally {
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if (mounted) {
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setState(() {
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_isTakingPicture = false;
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});
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}
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}
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}
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Future<void> _pickFromGallery() async {
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final picker = ImagePicker();
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// Use standard image_picker (Updated to 1.1.2 for Android 13+)
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final List<XFile> images = await picker.pickMultiImage();
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if (images.isNotEmpty && mounted) {
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// IF RETURN PATH Mode (Only supports one)
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if (widget.mode == CameraMode.returnPath) {
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Navigator.of(context).pop(images.first.path);
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return;
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}
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setState(() {
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for (var img in images) {
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_capturedImages.add(img.path);
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}
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});
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// Batch handle - Notification only
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if (mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('${images.length}枚の画像を読み込みました。\n右下のボタンから解析を開始してください。'),
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duration: const Duration(seconds: 3),
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action: SnackBarAction(
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label: '解析する',
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onPressed: _analyzeImages,
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textColor: Colors.yellow,
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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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Future<void> _handleCapturedImage(String imagePath, {bool fromGallery = false}) async {
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// IF RETURN PATH Mode
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if (widget.mode == CameraMode.returnPath) {
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Navigator.of(context).pop(imagePath);
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return;
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}
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setState(() {
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_capturedImages.add(imagePath);
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});
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// Show Confirmation Dialog
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await showDialog(
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context: context,
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barrierDismissible: false,
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builder: (ctx) => AlertDialog(
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title: Text(fromGallery ? '画像を読み込みました' : '写真を保存しました'),
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content: const Text('さらに別の面も撮影・追加すると、\nAI解析の精度がアップします！'),
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actions: [
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OutlinedButton(
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onPressed: () {
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// Start Analysis
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Navigator.of(context).pop();
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_analyzeImages();
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},
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child: const Text('解析開始'),
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),
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FilledButton(
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onPressed: () {
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// Return to capture (Dismiss dialog)
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Navigator.of(context).pop();
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},
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style: FilledButton.styleFrom(
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backgroundColor: AppTheme.posimaiBlue,
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foregroundColor: Colors.white,
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),
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child: const Text('さらに追加'),
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),
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],
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),
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);
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}
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Future<void> _analyzeImages() async {
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if (_capturedImages.isEmpty) return;
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// Show AnalyzingDialog
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showDialog(
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context: context,
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barrierDismissible: false,
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builder: (context) => const AnalyzingDialog(),
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);
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try {
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// [Phase 3-C Revised] Hybrid Analysis Implementation
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final ocrService = OcrService();
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final StringBuffer extractedBuffer = StringBuffer();
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try {
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for (final path in _capturedImages) {
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final text = await ocrService.extractText(path);
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if (text.isNotEmpty) {
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extractedBuffer.writeln(text);
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}
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}
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} finally {
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ocrService.dispose(); // Ensure resources are released
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}
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final extractedText = extractedBuffer.toString().trim();
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debugPrint('OCR Extracted Text (${extractedText.length} chars):');
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if (extractedText.isNotEmpty) {
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debugPrint('${extractedText.substring(0, extractedText.length > 100 ? 100 : extractedText.length)}...');
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}
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// Hybrid Decision Logic (Threshold: 30 chars)
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SakeAnalysisResult result;
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final geminiService = GeminiService();
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if (extractedText.length > 30) {
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debugPrint('✅ OCR SUCCESS: Using Hybrid Analysis (Text + Images)');
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// Send both text and images (images allow AI to correct OCR errors)
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result = await geminiService.analyzeSakeHybrid(extractedText, _capturedImages);
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} else {
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debugPrint('⚠️ OCR INSUFFICIENT (${extractedText.length} chars): Fallback to Image Analysis');
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result = await geminiService.analyzeSakeLabel(_capturedImages);
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}
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// Create SakeItem
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// Create SakeItem (Schema v2.0)
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final sakeItem = SakeItem(
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id: const Uuid().v4(),
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displayData: DisplayData(
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name: result.name ?? '不明な日本酒',
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brewery: result.brand ?? '不明',
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prefecture: result.prefecture ?? '不明',
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catchCopy: result.catchCopy,
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imagePaths: List.from(_capturedImages),
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rating: null,
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),
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hiddenSpecs: HiddenSpecs(
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description: result.description,
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tasteStats: result.tasteStats,
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flavorTags: result.flavorTags,
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),
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metadata: Metadata(
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createdAt: DateTime.now(),
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aiConfidence: result.confidenceScore,
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),
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);
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// Save to Hive
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final box = Hive.box<SakeItem>('sake_items');
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await box.add(sakeItem);
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// Prepend new item to sort order so it appears at the top
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final settingsBox = Hive.box('settings');
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final List<String> currentOrder = (settingsBox.get('sake_sort_order') as List<dynamic>?)
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?.cast<String>() ?? [];
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currentOrder.insert(0, sakeItem.id); // Insert at beginning
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await settingsBox.put('sake_sort_order', currentOrder);
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// --- v1.3 Gamification Hook ---
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// Award EXP
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final userProfileState = ref.read(userProfileProvider);
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final prevLevel = userProfileState.level;
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await ref.read(userProfileProvider.notifier).updateTotalExp(userProfileState.totalExp + 10);
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// Refetch updated state for level comparison
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final updatedProfile = ref.read(userProfileProvider);
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final newLevel = updatedProfile.level;
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final isLevelUp = newLevel > prevLevel;
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// Debug: Verify save
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debugPrint('✅ Saved to Hive: ${sakeItem.displayData.name} (ID: ${sakeItem.id})');
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debugPrint('📦 Total items in box: ${box.length}');
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debugPrint('📦 Prepended to sort order (now ${currentOrder.length} items)');
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debugPrint('🎮 Gamification: EXP +10 (Total: ${updatedProfile.totalExp}) Level: $prevLevel -> $newLevel');
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if (!mounted) return;
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// Close Dialog
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Navigator.of(context).pop();
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// Close Camera Screen (Return to Home)
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Navigator.of(context).pop();
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// Success Message (with EXP/Level Up info)
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text('${sakeItem.displayData.name} を登録しました！'),
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const SizedBox(height: 4),
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Row(
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children: [
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const Icon(LucideIcons.sparkles, color: Colors.yellow, size: 16),
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const SizedBox(width: 8),
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Text(
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'経験値 +10 GET! ${isLevelUp ? " (Level UP!)" : ""}',
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style: const TextStyle(fontWeight: FontWeight.bold, color: Colors.yellowAccent),
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),
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],
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),
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],
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),
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duration: const Duration(seconds: 4), // Longer display for level up
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),
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);
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} catch (e) {
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if (mounted) {
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Navigator.of(context).pop(); // Close AnalyzingDialog
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// Check for Quota Error to set Lockout
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if (e.toString().contains('Quota') || e.toString().contains('429')) {
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setState(() {
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_quotaLockoutTime = DateTime.now().add(const Duration(minutes: 1));
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});
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}
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text('解析エラー: $e')),
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);
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}
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}
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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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body: FutureBuilder<void>(
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future: _initializeControllerFuture,
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builder: (context, snapshot) {
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if (snapshot.connectionState == ConnectionState.done) {
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// Camera Preview with Focus/Zoom
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return Stack(
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fit: StackFit.expand,
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children: [
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LayoutBuilder(
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builder: (context, constraints) {
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return GestureDetector(
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onScaleStart: _onScaleStart,
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onScaleUpdate: _onScaleUpdate,
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onTapUp: (details) => _onTapFocus(details, constraints),
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child: CameraPreview(_controller!),
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);
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}
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),
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// Focus Ring Overlay
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if (_showFocusRing && _focusPoint != null)
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Positioned(
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left: _focusPoint!.dx - 40,
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top: _focusPoint!.dy - 40,
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child: Container(
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width: 80,
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height: 80,
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decoration: BoxDecoration(
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border: Border.all(color: Colors.yellow, width: 2),
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borderRadius: BorderRadius.circular(40),
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),
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),
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),
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// Instagram-style Exposure Slider
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Positioned(
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right: 16,
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top: MediaQuery.of(context).size.height * 0.25,
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child: GestureDetector(
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onVerticalDragUpdate: (details) async {
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// Throttling (30ms)
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final now = DateTime.now();
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if (_lastExposureUpdate != null && now.difference(_lastExposureUpdate!).inMilliseconds < 30) {
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return;
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}
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// Drag Up = Brighter (+), Down = Darker (-)
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final sensitivity = 0.03;
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final delta = -details.delta.dy * sensitivity;
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if (_controller == null || !_controller!.value.isInitialized) return;
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final newValue = (_currentExposureOffset + delta).clamp(_minExposure, _maxExposure);
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// UI immediate update
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setState(() => _currentExposureOffset = newValue);
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// Async camera update
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_setExposureSafe(newValue);
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_lastExposureUpdate = now;
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},
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onVerticalDragEnd: (details) {
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// Finalize value on drag end
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_setExposureSafe(_currentExposureOffset);
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},
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onDoubleTap: () async {
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// Reset
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if (_controller == null) return;
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setState(() => _currentExposureOffset = 0.0);
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_setExposureSafe(0.0);
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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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// Sun Icon (Bright)
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Icon(LucideIcons.sun, color: _currentExposureOffset > 0.5 ? Colors.yellow : Colors.white54, size: 24),
|
||
const SizedBox(height: 8),
|
||
|
||
// Vertical Track
|
||
Container(
|
||
height: 180,
|
||
width: 4, // Thin track
|
||
decoration: BoxDecoration(
|
||
color: Colors.white.withValues(alpha: 0.3),
|
||
borderRadius: BorderRadius.circular(2),
|
||
),
|
||
child: Stack(
|
||
alignment: Alignment.bottomCenter,
|
||
children: [
|
||
// Center Marker
|
||
Align(alignment: Alignment.center, child: Container(height: 2, width: 12, color: Colors.white54)),
|
||
|
||
// Knob
|
||
LayoutBuilder(
|
||
builder: (context, constraints) {
|
||
final range = _maxExposure - _minExposure;
|
||
if (range == 0) return const SizedBox();
|
||
|
||
final normalized = (_currentExposureOffset - _minExposure) / range;
|
||
// 1.0 is top (max), 0.0 is bottom (min)
|
||
final topPos = constraints.maxHeight * (1 - normalized) - 10; // -HalfKnob
|
||
|
||
return Positioned(
|
||
top: topPos.clamp(0, constraints.maxHeight - 20),
|
||
child: Container(
|
||
width: 18,
|
||
height: 18,
|
||
decoration: BoxDecoration(
|
||
color: Colors.white,
|
||
shape: BoxShape.circle,
|
||
boxShadow: [BoxShadow(color: Colors.black26, blurRadius: 4)],
|
||
),
|
||
),
|
||
);
|
||
}
|
||
),
|
||
],
|
||
),
|
||
),
|
||
const SizedBox(height: 8),
|
||
|
||
// Moon Icon (Dark)
|
||
Icon(LucideIcons.moon, color: _currentExposureOffset < -0.5 ? Colors.blue[200] : Colors.white54, size: 20),
|
||
|
||
// Value Text
|
||
if (_currentExposureOffset.abs() > 0.1)
|
||
Padding(
|
||
padding: const EdgeInsets.only(top: 4),
|
||
child: Text(
|
||
_currentExposureOffset > 0 ? '+${_currentExposureOffset.toStringAsFixed(1)}' : _currentExposureOffset.toStringAsFixed(1),
|
||
style: const TextStyle(color: Colors.white, fontSize: 12, fontWeight: FontWeight.bold, shadows: [Shadow(color: Colors.black, blurRadius: 2)]),
|
||
),
|
||
),
|
||
],
|
||
),
|
||
),
|
||
),
|
||
|
||
// Overlay UI
|
||
SafeArea(
|
||
child: Column(
|
||
mainAxisAlignment: MainAxisAlignment.spaceBetween,
|
||
children: [
|
||
// Top Bar
|
||
Padding(
|
||
padding: const EdgeInsets.all(8.0),
|
||
child: Row(
|
||
mainAxisAlignment: MainAxisAlignment.spaceBetween,
|
||
children: [
|
||
IconButton(
|
||
icon: const Icon(LucideIcons.x, color: Colors.white, size: 32),
|
||
onPressed: () => Navigator.of(context).pop(),
|
||
),
|
||
// iOS-style Zoom Buttons
|
||
Container(
|
||
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 6),
|
||
decoration: BoxDecoration(
|
||
color: Colors.black.withValues(alpha: 0.6),
|
||
borderRadius: BorderRadius.circular(20),
|
||
border: Border.all(color: Colors.white.withValues(alpha: 0.3), width: 1),
|
||
),
|
||
child: Row(
|
||
mainAxisSize: MainAxisSize.min,
|
||
children: [
|
||
_buildZoomButton('1.0', 1.0),
|
||
const SizedBox(width: 8),
|
||
_buildZoomButton('2.0', 2.0),
|
||
const SizedBox(width: 8),
|
||
_buildZoomButton('3.0', 3.0),
|
||
],
|
||
),
|
||
),
|
||
],
|
||
),
|
||
),
|
||
// Bottom Control Area
|
||
Padding(
|
||
padding: const EdgeInsets.only(bottom: 32.0, left: 24, right: 24),
|
||
child: Row(
|
||
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
|
||
crossAxisAlignment: CrossAxisAlignment.center,
|
||
children: [
|
||
// Gallery Button (Left)
|
||
IconButton(
|
||
icon: const Icon(LucideIcons.image, color: Colors.white, size: 32),
|
||
onPressed: _pickFromGallery,
|
||
tooltip: 'ギャラリーから選択',
|
||
),
|
||
|
||
// Shutter Button (Center)
|
||
GestureDetector(
|
||
onTap: _takePicture,
|
||
child: Container(
|
||
height: 80,
|
||
width: 80,
|
||
decoration: BoxDecoration(
|
||
shape: BoxShape.circle,
|
||
border: Border.all(
|
||
color: _quotaLockoutTime != null ? Colors.red : Colors.white,
|
||
width: 4
|
||
),
|
||
color: _isTakingPicture
|
||
? Colors.white.withValues(alpha: 0.5)
|
||
: (_quotaLockoutTime != null ? Colors.red.withValues(alpha: 0.2) : Colors.transparent),
|
||
),
|
||
child: Center(
|
||
child: _quotaLockoutTime != null
|
||
? const Icon(LucideIcons.timer, color: Colors.white, size: 30)
|
||
: Container(
|
||
height: 60,
|
||
width: 60,
|
||
decoration: BoxDecoration(
|
||
shape: BoxShape.circle,
|
||
color: _quotaLockoutTime != null ? Colors.grey : Colors.white,
|
||
),
|
||
),
|
||
),
|
||
),
|
||
),
|
||
|
||
// Right Spacer -> Analyze Button if images exist
|
||
if (_capturedImages.isNotEmpty)
|
||
IconButton(
|
||
icon: Badge(
|
||
label: Text('${_capturedImages.length}'),
|
||
child: const Icon(LucideIcons.playCircle, color: Colors.greenAccent, size: 40),
|
||
),
|
||
onPressed: _analyzeImages,
|
||
tooltip: '解析を開始',
|
||
)
|
||
else
|
||
const SizedBox(width: 48),
|
||
],
|
||
),
|
||
),
|
||
],
|
||
),
|
||
),
|
||
if (_isTakingPicture)
|
||
Container(
|
||
color: Colors.black.withValues(alpha: 0.5),
|
||
child: const Center(
|
||
child: CircularProgressIndicator(),
|
||
),
|
||
),
|
||
],
|
||
);
|
||
} else {
|
||
return const Center(child: CircularProgressIndicator());
|
||
}
|
||
},
|
||
),
|
||
);
|
||
}
|
||
|
||
Widget _buildZoomButton(String label, double zoom) {
|
||
// Current Zoom Logic: Highlight if close
|
||
final isActive = (_currentZoom - zoom).abs() < 0.3;
|
||
|
||
return GestureDetector(
|
||
onTap: () async {
|
||
if (_controller == null || !_controller!.value.isInitialized) return;
|
||
final targetZoom = zoom.clamp(_minZoom, _maxZoom);
|
||
|
||
try {
|
||
await _controller!.setZoomLevel(targetZoom);
|
||
setState(() => _currentZoom = targetZoom);
|
||
} catch (e) {
|
||
debugPrint('Zoom error: $e');
|
||
}
|
||
},
|
||
child: Container(
|
||
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
|
||
decoration: BoxDecoration(
|
||
color: isActive ? Colors.white : Colors.transparent,
|
||
borderRadius: BorderRadius.circular(16),
|
||
),
|
||
child: Text(
|
||
label,
|
||
style: TextStyle(
|
||
color: isActive ? Colors.black : Colors.white,
|
||
fontSize: 14,
|
||
fontWeight: isActive ? FontWeight.bold : FontWeight.normal,
|
||
),
|
||
),
|
||
),
|
||
);
|
||
}
|
||
}
|
||
|