WIFI connection support added

2026-07-31 08:17:12 +02:00
parent b28b1a89bb
commit 8cc9a51a34
11 changed files with 1436 additions and 115 deletions
@@ -0,0 +1,93 @@
+import 'dart:async';
+
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../../transport/link_transport.dart';
+import '../../transport/udp/udp_transport.dart';
+import 'database_provider.dart';
+
+/// App-lebenslanger UDP-Transport (Doku Kommunikationsschicht Abschnitt 3),
+/// verdrahtet gegen Host/Port aus den Einstellungen. Analog zu
+/// [bluetoothTransportProvider] bewusst nicht autoDispose - siehe dortige
+/// Begruendung.
+final wifiTransportProvider = Provider<UdpTransport>((ref) {
+  final settingsRepo = ref.watch(appSettingsRepositoryProvider);
+  final transport = UdpTransport(
+    getHost: settingsRepo.loadConnectionWifiHost,
+    getPort: settingsRepo.loadConnectionWifiPort,
+  );
+  ref.onDispose(transport.dispose);
+  return transport;
+});
+
+/// Reaktiver [LinkState] des WLAN-Transports fuer die Oberflaeche.
+final wifiLinkStateProvider = StreamProvider<LinkState>((ref) {
+  final transport = ref.watch(wifiTransportProvider);
+  return transport.state;
+});
+
+/// Grund des zuletzt gemeldeten [LinkState.error] des WLAN-Transports.
+final wifiLinkErrorReasonProvider = Provider<LinkErrorReason?>((ref) {
+  ref.watch(wifiLinkStateProvider);
+  return ref.watch(wifiTransportProvider).lastErrorReason;
+});
+
+/// Ein Eintrag im WLAN-Verbindungsprotokoll (Doku 7).
+class WifiConnectionLogEntry {
+  const WifiConnectionLogEntry(this.timestamp, this.message);
+
+  final DateTime timestamp;
+  final String message;
+}
+
+/// Verbindungsprotokoll + Paketzaehler fuer den WLAN-Transport, analog zu
+/// [ConnectionLogNotifier] fuer Bluetooth.
+class WifiConnectionLogNotifier
+    extends Notifier<List<WifiConnectionLogEntry>> {
+  static const _maxEntries = 50;
+
+  StreamSubscription<LinkState>? _stateSub;
+  StreamSubscription<void>? _dataSub;
+  int _packetCount = 0;
+
+  int get packetCount => _packetCount;
+
+  @override
+  List<WifiConnectionLogEntry> build() {
+    final transport = ref.watch(wifiTransportProvider);
+    _stateSub?.cancel();
+    _dataSub?.cancel();
+    _packetCount = 0;
+    _stateSub = transport.state.listen(_onStateChanged);
+    _dataSub = transport.incoming.listen((_) => _packetCount++);
+    ref.onDispose(() {
+      _stateSub?.cancel();
+      _dataSub?.cancel();
+    });
+    return const [];
+  }
+
+  void _onStateChanged(LinkState linkState) {
+    final transport = ref.read(wifiTransportProvider);
+    final message = switch (linkState) {
+      LinkState.disconnected => 'Getrennt',
+      LinkState.connecting => 'Verbinde ...',
+      LinkState.connected => 'Lausche auf Port ${transport.boundPort}',
+      LinkState.error => 'Fehler: '
+          '${transport.lastErrorMessage ?? transport.lastErrorReason?.name ?? 'unbekannt'}',
+    };
+    _append(message);
+  }
+
+  void _append(String message) {
+    final entry = WifiConnectionLogEntry(DateTime.now(), message);
+    final next = [...state, entry];
+    state = next.length > _maxEntries
+        ? next.sublist(next.length - _maxEntries)
+        : next;
+  }
+}
+
+final wifiConnectionLogProvider =
+    NotifierProvider<WifiConnectionLogNotifier, List<WifiConnectionLogEntry>>(
+        WifiConnectionLogNotifier.new);