284 lines
11 KiB
Dart
284 lines
11 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import '../../../core/network/api_client.dart';
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import '../../../core/network/signalr_service.dart';
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import '../../../core/theme/app_theme.dart';
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import '../../../core/widgets/glass_container.dart';
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import '../../../core/widgets/status_badge.dart';
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import '../views/service_detail_screen.dart';
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/// Real-Time System Diagnostics Widget driven EXCLUSIVELY over SignalR WebSockets (`/hubs/health`).
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/// ZERO REST HTTP API calls are performed.
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class SystemDiagnosticsWidget extends StatefulWidget {
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final SignalRService? signalRService;
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const SystemDiagnosticsWidget({
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super.key,
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this.signalRService,
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});
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@override
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State<SystemDiagnosticsWidget> createState() => _SystemDiagnosticsWidgetState();
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}
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class _SystemDiagnosticsWidgetState extends State<SystemDiagnosticsWidget> {
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List<Map<String, dynamic>> _serviceStatuses = [];
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StreamSubscription<List<Map<String, dynamic>>>? _healthSub;
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@override
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void initState() {
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super.initState();
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if (widget.signalRService != null) {
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_healthSub = widget.signalRService!.healthStream.listen((data) {
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if (mounted) {
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setState(() {
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_serviceStatuses = data;
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});
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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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void dispose() {
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_healthSub?.cancel();
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super.dispose();
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}
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IconData _getServiceIcon(String name) {
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switch (name) {
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case 'FinlyticBackend':
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return Icons.hub_outlined;
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case 'FinlyticAssets':
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return Icons.inventory_2_outlined;
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case 'FinlyticNews':
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return Icons.newspaper_outlined;
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case 'FinlyticTechnicals':
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case 'FinlyticTechnicalAnalysis':
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return Icons.show_chart_outlined;
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case 'FinlyticSentiment':
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return Icons.psychology_outlined;
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case 'FinlyticEngine':
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case 'FinlyticAnalyzer':
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case 'FinlyticTrades':
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return Icons.candlestick_chart_outlined;
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case 'FinlyticFundamentals':
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return Icons.corporate_fare_outlined;
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case 'FinlyticBot':
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return Icons.smart_toy_outlined;
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default:
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return Icons.dns_outlined;
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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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final int totalCount = _serviceStatuses.length;
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final int onlineCount = _serviceStatuses.where((s) => s['status']?.toString().toLowerCase() == 'online').length;
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final bool isWsConnected = widget.signalRService?.isConnected ?? false;
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return SingleChildScrollView(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// WebSocket Status Banner
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GlassContainer(
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padding: const EdgeInsets.all(16),
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child: Row(
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children: [
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Container(
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padding: const EdgeInsets.all(10),
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decoration: BoxDecoration(
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color: AppTheme.primaryEmerald.withValues(alpha: 0.15),
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shape: BoxShape.circle,
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border: Border.all(color: AppTheme.primaryEmerald.withValues(alpha: 0.3)),
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),
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child: Icon(Icons.sensors_rounded, color: AppTheme.primaryEmerald, size: 22),
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),
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const SizedBox(width: 14),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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children: [
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const Text(
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'SignalR WebSocket Live-Diagnose',
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style: TextStyle(fontWeight: FontWeight.bold, fontSize: 15),
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),
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const SizedBox(width: 8),
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Container(
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width: 8,
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height: 8,
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decoration: BoxDecoration(
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color: isWsConnected ? AppTheme.primaryEmerald : AppTheme.accentRed,
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shape: BoxShape.circle,
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boxShadow: [
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BoxShadow(
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color: (isWsConnected ? AppTheme.primaryEmerald : AppTheme.accentRed).withValues(alpha: 0.8),
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blurRadius: 6,
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spreadRadius: 2,
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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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const SizedBox(height: 2),
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Text(
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'100% über SignalR WebSockets (/hubs/health). Keine HTTP API Anfragen.',
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style: TextStyle(fontSize: 12, color: AppTheme.textSecondary),
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),
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],
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),
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),
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const SizedBox(width: 10),
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
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decoration: BoxDecoration(
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color: (onlineCount == totalCount && totalCount > 0 ? AppTheme.primaryEmerald : AppTheme.accentCyan).withValues(alpha: 0.2),
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borderRadius: BorderRadius.circular(10),
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border: Border.all(color: (onlineCount == totalCount && totalCount > 0 ? AppTheme.primaryEmerald : AppTheme.accentCyan).withValues(alpha: 0.4)),
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),
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child: Text(
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totalCount > 0 ? '$onlineCount / $totalCount Online' : 'Verbinde WebSocket...',
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style: TextStyle(
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color: onlineCount == totalCount && totalCount > 0 ? AppTheme.primaryEmerald : AppTheme.accentCyan,
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fontWeight: FontWeight.bold,
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fontSize: 13,
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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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const SizedBox(height: 16),
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const Text(
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'Echtzeit Dienststatus (SignalR Push)',
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style: TextStyle(fontWeight: FontWeight.bold, fontSize: 16),
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),
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const SizedBox(height: 12),
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if (_serviceStatuses.isEmpty)
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Padding(
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padding: const EdgeInsets.symmetric(vertical: 40),
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child: Center(
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child: Column(
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children: [
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CircularProgressIndicator(color: AppTheme.primaryEmerald),
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const SizedBox(height: 16),
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Text('Warte auf SignalR WebSocket Daten von /hubs/health...', style: TextStyle(color: AppTheme.textMuted, fontSize: 13)),
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],
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),
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),
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)
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else
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GridView.builder(
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shrinkWrap: true,
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physics: const NeverScrollableScrollPhysics(),
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itemCount: _serviceStatuses.length,
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gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
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crossAxisCount: MediaQuery.of(context).size.width > 900 ? 2 : 1,
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childAspectRatio: 2.7,
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crossAxisSpacing: 12,
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mainAxisSpacing: 12,
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),
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itemBuilder: (context, index) {
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final svc = _serviceStatuses[index];
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final String name = svc['name']?.toString() ?? 'Unbekannt';
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final String type = svc['type']?.toString() ?? '';
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final String status = svc['status']?.toString() ?? 'Offline';
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final bool isOnline = status.toLowerCase() == 'online';
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final String portInfo = svc['port']?.toString() ?? 'MQTT Only';
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final String db = svc['db']?.toString() ?? 'PostgreSQL';
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return InkWell(
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onTap: () {
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final apiClient = context.read<ApiClient>();
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (_) => ServiceDetailScreen(serviceName: name, apiClient: apiClient),
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),
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);
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},
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borderRadius: BorderRadius.circular(20),
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child: GlassContainer(
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padding: const EdgeInsets.all(14),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Row(
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children: [
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Icon(
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_getServiceIcon(name),
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size: 18,
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color: isOnline ? AppTheme.primaryEmerald : AppTheme.accentRed,
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),
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const SizedBox(width: 8),
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Text(
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name,
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style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 14),
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),
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],
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),
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StatusBadge(
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label: status,
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color: isOnline ? AppTheme.primaryEmerald : AppTheme.accentRed,
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),
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],
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),
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Text(
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type,
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style: TextStyle(fontSize: 12, color: AppTheme.textSecondary),
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overflow: TextOverflow.ellipsis,
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),
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const Divider(height: 10, color: Colors.white10),
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Row(
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children: [
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Icon(Icons.storage_outlined, size: 12, color: AppTheme.textMuted),
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const SizedBox(width: 4),
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Text(
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db,
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style: TextStyle(fontSize: 11, color: AppTheme.textMuted),
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),
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],
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),
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Row(
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children: [
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Icon(name == 'FinlyticBackend' ? Icons.language_outlined : Icons.cable_outlined,
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size: 12, color: AppTheme.accentCyan),
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const SizedBox(width: 4),
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Text(
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portInfo,
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style: TextStyle(
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fontSize: 11,
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color: name == 'FinlyticBackend' ? AppTheme.primaryEmerald : AppTheme.accentCyan,
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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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),
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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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}
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}
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