Files
TimbanganSiab/lib/screens/timbang_screen.dart
2026-01-29 16:17:31 +07:00

292 lines
13 KiB
Dart

import 'dart:io';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:share_plus/share_plus.dart';
import 'package:path/path.dart' as p;
import '../database/siab_database.dart';
import '../services/ble_service.dart';
/// Screen that shows the current timbang (weight) value on a scale-style
/// display matching the SIAB scale design (dark frame, glowing red digits).
/// When connected, title shows "TIMBANGAN [label] SIAB" from registered device.
class TimbangScreen extends StatelessWidget {
const TimbangScreen({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.black,
body: SafeArea(
child: Consumer<BLEService>(
builder: (context, ble, _) {
final weightKg = ble.lastWeightKg;
final displayValue = weightKg != null
? weightKg.toStringAsFixed(1)
: '0.0';
final isConnected = ble.isConnected;
final address = ble.deviceAddress;
return Center(
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 32),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
// Outer frame with decorative corners
Stack(
children: [
// Outer dark grey/blue frame
Container(
padding: const EdgeInsets.all(4),
decoration: BoxDecoration(
color: const Color(0xFF2A2A3A), // Dark grey/blue
borderRadius: BorderRadius.circular(16),
),
child: Stack(
children: [
// Inner border (lighter grey/blue line)
Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(12),
border: Border.all(
color: const Color(0xFF4A4A5A),
width: 2,
),
),
child: // Deep black display area
Container(
padding: const EdgeInsets.symmetric(
vertical: 40,
horizontal: 24,
),
decoration: BoxDecoration(
color: Colors.black,
borderRadius: BorderRadius.circular(10),
),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
// Large glowing red weight value
Text(
displayValue,
style: TextStyle(
fontSize: 72,
fontWeight: FontWeight.w400,
color: Colors.red.shade400,
fontFamily: 'monospace',
fontFeatures: const [
FontFeature.tabularFigures(),
],
shadows: [
Shadow(
color: Colors.red.shade400
.withOpacity(0.8),
blurRadius: 20,
),
Shadow(
color: Colors.red.shade400
.withOpacity(0.5),
blurRadius: 40,
),
],
),
),
const SizedBox(height: 8),
// Smaller glowing red "kg" unit
Text(
'kg',
style: TextStyle(
fontSize: 24,
fontWeight: FontWeight.w400,
color: Colors.red.shade400,
fontFamily: 'monospace',
shadows: [
Shadow(
color: Colors.red.shade400
.withOpacity(0.8),
blurRadius: 15,
),
Shadow(
color: Colors.red.shade400
.withOpacity(0.5),
blurRadius: 30,
),
],
),
),
],
),
),
),
// Corner decorative elements (rivets/screws)
Positioned(
top: 2,
left: 2,
child: _CornerRivet(),
),
Positioned(
top: 2,
right: 2,
child: _CornerRivet(),
),
Positioned(
bottom: 2,
left: 2,
child: _CornerRivet(),
),
Positioned(
bottom: 2,
right: 2,
child: _CornerRivet(),
),
],
),
),
],
),
const SizedBox(height: 24),
// "TIMBANGAN [label] SIAB" when connected, else "TIMBANGAN SIAB"
FutureBuilder<String>(
future: address != null
? SiabDatabase().getByUuid(address).then((d) => d?.label ?? '')
: Future.value(''),
builder: (context, snapshot) {
final label = snapshot.data?.trim() ?? '';
final title = isConnected && label.isNotEmpty
? 'TIMBANGAN $label SIAB'
: 'TIMBANGAN SIAB';
return Text(
title,
style: TextStyle(
fontSize: 16,
color: Colors.grey.shade400,
fontWeight: FontWeight.w300,
letterSpacing: 1.2,
),
);
},
),
const SizedBox(height: 16),
// Connection status + actions
if (!isConnected)
Text(
'Connect scale in Devices tab',
style: TextStyle(
fontSize: 12,
color: Colors.grey.shade600,
),
)
else ...[
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Icons.bluetooth_connected,
size: 20,
color: Colors.green.shade300,
),
const SizedBox(width: 12),
TextButton.icon(
onPressed: () async {
await ble.disconnect();
},
icon: const Icon(Icons.power_settings_new, size: 18),
label: const Text('Disconnect'),
style: TextButton.styleFrom(
foregroundColor: Colors.red.shade300,
),
),
],
),
const SizedBox(height: 12),
ElevatedButton.icon(
onPressed: ble.hasStableWeight
? () async {
final ok = await ble.saveStableMeasurement();
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(ok
? 'Stable weight saved to file'
: 'No stable value to save yet'),
),
);
}
: null,
icon: const Icon(Icons.save),
label: const Text('Save stable value'),
),
const SizedBox(height: 8),
OutlinedButton.icon(
onPressed: () async {
try {
final file = await ble.getTodayMeasurementFile();
final exists = await file.exists();
if (!exists || await file.length() == 0) {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text(
'No measurements file for today yet. Save a value first.',
),
),
);
return;
}
await Share.shareXFiles(
[
XFile(
file.path,
mimeType: 'text/csv',
name: p.basename(file.path),
),
],
subject: 'SIAB Laporan hasil Timbang ',
text:
'SIAB Laporan hasil Timbang harian.',
);
} catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text('gagal mengirim file: $e'),
),
);
}
},
icon: const Icon(Icons.email),
label: const Text('email terkirim'),
),
],
],
),
),
);
},
),
),
);
}
}
/// Decorative corner rivet/screw element
class _CornerRivet extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Container(
width: 8,
height: 8,
decoration: BoxDecoration(
color: Colors.grey.shade500,
shape: BoxShape.circle,
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.3),
blurRadius: 2,
offset: const Offset(0, 1),
),
],
),
);
}
}