ponshu-room-lite/lib/screens/scan_screen.dart

292 lines
9.7 KiB
Dart

import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:mobile_scanner/mobile_scanner.dart';
import '../theme/app_theme.dart';
import '../widgets/sake_radar_chart.dart';
class ScanARScreen extends StatefulWidget {
const ScanARScreen({super.key});
@override
State<ScanARScreen> createState() => _ScanARScreenState();
}
class _ScanARScreenState extends State<ScanARScreen> with SingleTickerProviderStateMixin {
final MobileScannerController _controller = MobileScannerController();
bool _isScanning = true;
@override
void dispose() {
_controller.dispose();
super.dispose();
}
void _onDetect(BarcodeCapture capture) {
if (!_isScanning) return;
final List<Barcode> barcodes = capture.barcodes;
for (final barcode in barcodes) {
if (barcode.rawValue != null) {
try {
final Map<String, dynamic> data = jsonDecode(barcode.rawValue!);
// Check for key fields to validate it's our QR
if (data.containsKey('id') && data.containsKey('n')) {
_isScanning = false; // Stop scanning logic
// Show Card
_showDigitalCard(data);
break;
}
} catch (e) {
// Not JSON or not our format
}
}
}
}
void _showDigitalCard(Map<String, dynamic> data) async {
// Play sound? (Optional)
await showDialog(
context: context,
barrierDismissible: true,
builder: (context) => _DigitalSakeCardDialog(data: data),
);
// Resume scanning after dialog closes
if (mounted) {
setState(() {
_isScanning = true;
});
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Stack(
children: [
MobileScanner(
controller: _controller,
onDetect: _onDetect,
),
// Overlay Design
Container(
decoration: BoxDecoration(
border: Border.symmetric(
horizontal: BorderSide(color: Colors.black.withValues(alpha: 0.5), width: 100),
vertical: BorderSide(color: Colors.black.withValues(alpha: 0.5), width: 40),
),
),
),
Center(
child: Container(
width: 280,
height: 280,
decoration: BoxDecoration(
border: Border.all(color: AppTheme.posimaiBlue.withValues(alpha: 0.8), width: 2),
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: AppTheme.posimaiBlue.withValues(alpha: 0.4),
blurRadius: 20,
spreadRadius: 2,
),
],
),
child: Stack(
children: [
// Corners
Positioned(top: 0, left: 0, child: _Corner(isTop: true, isLeft: true)),
Positioned(top: 0, right: 0, child: _Corner(isTop: true, isLeft: false)),
Positioned(bottom: 0, left: 0, child: _Corner(isTop: false, isLeft: true)),
Positioned(bottom: 0, right: 0, child: _Corner(isTop: false, isLeft: false)),
// Center Animation (Scanner line) - simplified
Center(
child: Container(
height: 2,
color: Colors.white.withValues(alpha: 0.5),
),
)
],
),
),
),
const Positioned(
top: 60,
left: 0,
right: 0,
child: Text(
'銘柄カードのQRをスキャン',
textAlign: TextAlign.center,
style: TextStyle(
color: Colors.white,
fontSize: 18,
fontWeight: FontWeight.bold,
shadows: [Shadow(color: Colors.black, blurRadius: 4)],
),
),
),
],
),
);
}
}
class _Corner extends StatelessWidget {
final bool isTop;
final bool isLeft;
const _Corner({required this.isTop, required this.isLeft});
@override
Widget build(BuildContext context) {
const double size = 32; // Slightly larger for rounded look
const double thickness = 4;
const double radius = 16;
return Container(
width: size,
height: size,
decoration: BoxDecoration(
color: Colors.transparent,
borderRadius: BorderRadius.only(
topLeft: isTop && isLeft ? const Radius.circular(radius) : Radius.zero,
topRight: isTop && !isLeft ? const Radius.circular(radius) : Radius.zero,
bottomLeft: !isTop && isLeft ? const Radius.circular(radius) : Radius.zero,
bottomRight: !isTop && !isLeft ? const Radius.circular(radius) : Radius.zero,
),
border: Border(
top: isTop ? const BorderSide(color: Colors.white, width: thickness) : BorderSide.none,
bottom: !isTop ? const BorderSide(color: Colors.white, width: thickness) : BorderSide.none,
left: isLeft ? const BorderSide(color: Colors.white, width: thickness) : BorderSide.none,
right: !isLeft ? const BorderSide(color: Colors.white, width: thickness) : BorderSide.none,
),
),
);
}
}
class _DigitalSakeCardDialog extends StatelessWidget {
final Map<String, dynamic> data;
const _DigitalSakeCardDialog({required this.data});
@override
Widget build(BuildContext context) {
// Unpack data
final name = data['n'] ?? '不明';
final brewery = data['b'] ?? '不明';
final prefecture = data['p']?.toString() ?? '不明';
// Stats for chart
final aroma = (data['s'] is num) ? -1 : 3; // 's' is sweetness in my QR?
// Wait, toQrJson: s=sweetness, y=body, a=alcohol.
// Radar Chart needs: aroma, bitterness, sweetness, acidity, body.
// We only have S, Y, A. (Sweetness, Body, Alcohol).
// We'll map them visually or just show what we have.
// A proper implementation plan would fetch the full data if available, but offline we only use QR data.
// Let's map:
// Sweetness -> Sweetness
// Body -> Body
// Alcohol -> Bitterness? (High alcohol often behaves like dry/bitter)
// Aroma -> Default 3
// Acidity -> Default 3
// Or just show stars.
// The user praised the Radar Chart, so let's try to populate it even partially.
final sweetness = (data['s'] as num?)?.toInt() ?? 3;
final body = (data['y'] as num?)?.toInt() ?? 3;
final alcohol = (data['a'] as num?)?.toInt() ?? 3;
final radarData = {
'aroma': 3,
'bitterness': alcohol, // Proxy
'sweetness': sweetness,
'acidity': 3,
'body': body,
};
return Dialog(
backgroundColor: Colors.transparent,
elevation: 0,
child: TweenAnimationBuilder<double>(
duration: const Duration(milliseconds: 500),
curve: Curves.elasticOut,
tween: Tween(begin: 0.5, end: 1.0),
builder: (context, scale, child) {
return Transform.scale(scale: scale, child: child);
},
child: Container(
width: 320,
padding: const EdgeInsets.all(24),
decoration: BoxDecoration(
gradient: const LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: [Color(0xFFE3F2FD), Color(0xFFF3E5F5)], // Light Blue to Light Purple
),
borderRadius: BorderRadius.circular(20),
boxShadow: [
BoxShadow(color: Colors.black.withValues(alpha: 0.2), blurRadius: 20, spreadRadius: 5),
],
border: Border.all(color: Colors.white, width: 2),
),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
// Badge
Container(
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
decoration: BoxDecoration(
color: AppTheme.posimaiBlue,
borderRadius: BorderRadius.circular(20),
),
child: const Text('New Discovery!', style: TextStyle(color: Colors.white, fontWeight: FontWeight.bold, fontSize: 12)),
),
const SizedBox(height: 16),
// Name
Text(
name,
style: const TextStyle(fontSize: 22, fontWeight: FontWeight.bold, height: 1.2),
textAlign: TextAlign.center,
),
const SizedBox(height: 8),
Text(
'$brewery / $prefecture',
style: const TextStyle(fontSize: 14, color: Colors.grey),
),
const SizedBox(height: 20),
// Chart
SizedBox(
height: 180,
child: SakeRadarChart(
tasteStats: radarData,
primaryColor: AppTheme.posimaiBlue,
),
),
const SizedBox(height: 24),
// Actions
ElevatedButton.icon(
onPressed: () => Navigator.pop(context),
icon: const Icon(Icons.check),
label: const Text('閉じる'),
style: ElevatedButton.styleFrom(
backgroundColor: AppTheme.posimaiBlue,
foregroundColor: Colors.white,
minimumSize: const Size(double.infinity, 48),
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
),
),
],
),
),
),
);
}
}