Files
TIS_RMS/frontend/lib/ui/shared/dialogs/disconnected_dialog.dart
T

350 lines
12 KiB
Dart

import 'dart:io' show Platform, exit;
import 'package:flutter/foundation.dart' show kIsWeb;
import 'package:flutter/material.dart';
import 'package:flutter/services.dart' show SystemNavigator;
import '../../../core/constants/app_colors.dart';
import '../../../core/constants/app_sizes.dart';
import '../../../core/network/api_constants.dart';
import '../../../core/network/server_discovery.dart';
import '../../../core/services/haptic_service.dart';
import '../../../core/services/sound_service.dart';
import '../widgets/app_button_loader.dart';
class DisconnectedDialog extends StatefulWidget {
final VoidCallback? onReconnected;
const DisconnectedDialog({super.key, this.onReconnected});
static bool _isShowing = false;
/// Shows the Disconnected Dialog if not already visible.
static Future<void> show(
BuildContext context, {
VoidCallback? onReconnected,
}) async {
if (!context.mounted) return;
if (_isShowing) return;
_isShowing = true;
try {
SoundService.playError();
HapticService.error();
} catch (_) {}
await showDialog<void>(
context: context,
barrierDismissible: false,
builder: (dialogCtx) => DisconnectedDialog(onReconnected: onReconnected),
);
_isShowing = false;
}
@override
State<DisconnectedDialog> createState() => _DisconnectedDialogState();
}
class _DisconnectedDialogState extends State<DisconnectedDialog> {
bool _isReconnecting = false;
bool _stillNotConnected = false;
String _statusMessage = '';
String? _errorMessage;
Future<void> _handleReconnect() async {
setState(() {
_isReconnecting = true;
_statusMessage = 'Checking LAN connection…';
_errorMessage = null;
});
try {
final found = await ServerDiscoveryService.resolveServerWithFallback(
onProgress: (msg) {
if (mounted) setState(() => _statusMessage = msg);
},
);
if (!mounted) return;
if (found != null) {
SoundService.playSuccess();
HapticService.success();
Navigator.of(context).pop();
widget.onReconnected?.call();
// Show feedback snackbar
final isLan = found.contains('192.168.') ||
found.contains('10.') ||
found.contains('172.');
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
backgroundColor: AppColors.primaryGreen,
behavior: SnackBarBehavior.floating,
content: Row(
children: [
const Icon(Icons.check_circle_rounded, color: Colors.white, size: 20),
const SizedBox(width: 10),
Expanded(
child: Text(
isLan
? 'Connected to Local Server: $found'
: 'Connected to Tunnel Domain ($found)',
style: const TextStyle(fontWeight: FontWeight.w600),
),
),
],
),
duration: const Duration(seconds: 4),
),
);
} else {
setState(() {
_isReconnecting = false;
_stillNotConnected = true;
_errorMessage =
'Reconnection attempt failed. The TIS RMS server is unreachable on your Local Network (LAN) and Cloud Tunnel.';
});
}
} catch (e) {
if (mounted) {
setState(() {
_isReconnecting = false;
_stillNotConnected = true;
_errorMessage = 'Reconnection error: $e';
});
}
}
}
void _closeApp() {
if (!kIsWeb && (Platform.isAndroid || Platform.isIOS)) {
SystemNavigator.pop();
} else if (!kIsWeb &&
(Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
exit(0);
}
}
@override
Widget build(BuildContext context) {
final isDark = Theme.of(context).brightness == Brightness.dark;
final isMobile = MediaQuery.of(context).size.width < 600;
return AlertDialog(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(AppSizes.radiusLarge),
),
contentPadding: EdgeInsets.all(isMobile ? 20 : 24),
content: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 420),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
// Disconnected Pulse Icon Badge
Container(
width: 64,
height: 64,
decoration: BoxDecoration(
color: Colors.redAccent.withValues(alpha: isDark ? 0.18 : 0.1),
shape: BoxShape.circle,
border: Border.all(
color: Colors.redAccent.withValues(alpha: 0.35),
width: 2,
),
),
child: Icon(
_stillNotConnected
? Icons.cloud_off_rounded
: Icons.wifi_off_rounded,
color: Colors.redAccent,
size: 32,
),
),
const SizedBox(height: 18),
// Title
Text(
_stillNotConnected ? 'Still Not Connected' : 'Connection Lost',
style: const TextStyle(
fontSize: 20,
fontWeight: FontWeight.bold,
letterSpacing: 0.3,
),
textAlign: TextAlign.center,
),
const SizedBox(height: 8),
// Description
Text(
_stillNotConnected
? 'Reconnection attempt failed. The TIS RMS server remains unreachable on your Local Network (LAN) and Cloud Tunnel.\n\nWould you like to try again or close the application?'
: 'Unable to reach the TIS RMS server. The system checks your Local Network (LAN) first, then falls back to the Cloud Tunnel.',
style: const TextStyle(
fontSize: 13,
color: AppColors.textSecondary,
height: 1.4,
),
textAlign: TextAlign.center,
),
const SizedBox(height: 16),
// Target URL info box
Container(
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
decoration: BoxDecoration(
color: isDark ? AppColors.darkSurface2 : Colors.grey.shade100,
borderRadius: BorderRadius.circular(10),
border: Border.all(
color: isDark ? AppColors.darkBorder : Colors.grey.shade300,
),
),
child: Row(
children: [
Icon(
Icons.dns_outlined,
size: 16,
color: isDark ? Colors.white70 : Colors.black54,
),
const SizedBox(width: 8),
Expanded(
child: Text(
'Target: ${ApiConstants.baseUrl}',
style: TextStyle(
fontSize: 11,
fontFamily: 'monospace',
color: isDark ? Colors.white70 : Colors.black87,
),
overflow: TextOverflow.ellipsis,
),
),
],
),
),
if (_isReconnecting) ...[
const SizedBox(height: 18),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
const AppButtonLoader(
size: 18,
strokeWidth: 2.2,
color: AppColors.primaryGreen,
),
const SizedBox(width: 12),
Flexible(
child: Text(
_statusMessage,
style: const TextStyle(
fontSize: 12,
fontWeight: FontWeight.w600,
color: AppColors.primaryGreen,
),
overflow: TextOverflow.ellipsis,
),
),
],
),
],
if (_errorMessage != null && !_isReconnecting) ...[
const SizedBox(height: 14),
Container(
padding: const EdgeInsets.all(10),
decoration: BoxDecoration(
color: Colors.red.withValues(alpha: isDark ? 0.15 : 0.08),
borderRadius: BorderRadius.circular(8),
border: Border.all(
color: Colors.red.withValues(alpha: 0.3),
),
),
child: Row(
children: [
const Icon(Icons.error_outline, color: Colors.redAccent, size: 18),
const SizedBox(width: 8),
Expanded(
child: Text(
_errorMessage!,
style: const TextStyle(
fontSize: 12,
color: Colors.redAccent,
height: 1.3,
),
),
),
],
),
),
],
const SizedBox(height: 24),
// Action Buttons
Row(
children: [
// Secondary: Close App
Expanded(
child: SizedBox(
height: 46,
child: FilledButton.icon(
icon: const Icon(Icons.power_settings_new_rounded, size: 18),
label: const Text(
'CLOSE APP',
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 12,
letterSpacing: 0.4,
),
),
style: FilledButton.styleFrom(
backgroundColor: Colors.redAccent,
foregroundColor: Colors.white,
elevation: 0,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(AppSizes.radiusMedium),
),
),
onPressed: _isReconnecting ? null : _closeApp,
),
),
),
const SizedBox(width: 12),
// Primary: Reconnect / Retry
Expanded(
child: SizedBox(
height: 46,
child: ElevatedButton.icon(
icon: _isReconnecting
? const SizedBox.shrink()
: const Icon(Icons.refresh_rounded, size: 18),
label: Text(
_isReconnecting
? 'RECONNECTING…'
: (_stillNotConnected ? 'RETRY' : 'RECONNECT'),
style: const TextStyle(
fontWeight: FontWeight.bold,
letterSpacing: 0.5,
fontSize: 12,
),
),
style: ElevatedButton.styleFrom(
backgroundColor: AppColors.primaryGreen,
foregroundColor: Colors.white,
elevation: 0,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(AppSizes.radiusMedium),
),
),
onPressed: _isReconnecting ? null : _handleReconnect,
),
),
),
],
),
],
),
),
);
}
}