feat: füge ConnectivityTracker hinzu, erweitere networkModule, aktualisiere DesktopFooterBar mit Gerätestatus und mDNS-Discovery

Signed-off-by: StefanMoCoAt <stefan.mo.co@gmail.com>

frontend/core/network/src/commonMain/kotlin/at/mocode/frontend/core/network/ConnectivityTracker.kt

@@ -0,0 +1,48 @@
+package at.mocode.frontend.core.network
+
+import io.ktor.client.*
+import io.ktor.client.request.*
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import org.koin.core.component.KoinComponent
+import org.koin.core.component.inject
+import org.koin.core.qualifier.named
+
+/**
+ * Überwacht die Konnektivität zum API-Gateway.
+ */
+class ConnectivityTracker : KoinComponent {
+  private val client: HttpClient by inject(named("baseHttpClient"))
+  private val _isOnline = MutableStateFlow(true)
+  val isOnline: StateFlow<Boolean> = _isOnline.asStateFlow()
+
+  private val scope = CoroutineScope(Dispatchers.Default + SupervisorJob())
+
+  init {
+    startTracking()
+  }
+
+  private fun startTracking() {
+    scope.launch {
+      while (isActive) {
+        _isOnline.value = checkConnection()
+        delay(10_000) // Alle 10 Sekunden prüfen
+      }
+    }
+  }
+
+  private suspend fun checkConnection(): Boolean {
+    return try {
+      val response = client.get(NetworkConfig.baseUrl.trimEnd('/') + "/ping")
+      response.status.value in 200..299
+    } catch (e: Exception) {
+      false
+    }
+  }
+
+  fun stopTracking() {
+    scope.cancel()
+  }
+}

frontend/core/network/src/commonMain/kotlin/at/mocode/frontend/core/network/NetworkModule.kt

@@ -1,5 +1,7 @@
 package at.mocode.frontend.core.network
 
+import at.mocode.frontend.core.network.discovery.discoveryModule
+import at.mocode.frontend.core.network.sync.syncModule
 import io.ktor.client.*
 import io.ktor.client.plugins.*
 import io.ktor.client.plugins.contentnegotiation.*
@@ -10,13 +12,13 @@ import kotlinx.serialization.json.Json
 import org.koin.core.module.Module
 import org.koin.core.qualifier.named
 import org.koin.dsl.module
-import at.mocode.frontend.core.network.discovery.discoveryModule
-import at.mocode.frontend.core.network.sync.syncModule
 
 /**
  * Schnittstelle zur Token-Bereitstellung – entkoppelt core-network von core-auth.
  */
-interface TokenProvider { fun getAccessToken(): String? }
+interface TokenProvider {
+  fun getAccessToken(): String?
+}
 
 /**
  * Koin-Modul mit zwei HttpClient-Instanzen:
@@ -26,6 +28,8 @@ interface TokenProvider { fun getAccessToken(): String? }
 val networkModule: Module = module {
   includes(discoveryModule, syncModule)
 
+  single<ConnectivityTracker> { ConnectivityTracker() }
+
   // 1. Basis-Client (für Auth-Endpunkte, ohne Bearer-Token)
   single(named("baseHttpClient")) {
     HttpClient {

frontend/shells/meldestelle-desktop/src/jvmMain/kotlin/at/mocode/desktop/screens/layout/DesktopMainLayout.kt

@@ -21,6 +21,8 @@ import at.mocode.desktop.screens.onboarding.SettingsManager
 import at.mocode.frontend.core.designsystem.theme.AppColors
 import at.mocode.frontend.core.designsystem.theme.Dimens
 import at.mocode.frontend.core.navigation.AppScreen
+import at.mocode.frontend.core.network.ConnectivityTracker
+import at.mocode.frontend.core.network.discovery.NetworkDiscoveryService
 import at.mocode.frontend.features.billing.presentation.BillingScreen
 import at.mocode.frontend.features.billing.presentation.BillingViewModel
 import at.mocode.frontend.features.nennung.presentation.NennungViewModel
@@ -40,8 +42,10 @@ import at.mocode.turnier.feature.presentation.TurnierDetailScreen
 import at.mocode.veranstaltung.feature.presentation.AdminUebersichtScreen
 import at.mocode.veranstaltung.feature.presentation.VeranstaltungDetailScreen
 import at.mocode.veranstaltung.feature.presentation.VeranstaltungNeuScreen
+import kotlinx.coroutines.delay
 import org.koin.compose.koinInject
 import org.koin.compose.viewmodel.koinViewModel
+import kotlin.time.Duration.Companion.milliseconds
 
 // Primärfarbe der TopBar (kann später ins Theme ausgelagert werden)
 private val TopBarColor = Color(0xFF1E3A8A)
@@ -91,7 +95,7 @@ fun DesktopMainLayout(
       }
 
       HorizontalDivider(thickness = Dimens.BorderThin, color = MaterialTheme.colorScheme.outlineVariant)
-      DesktopFooterBar()
+      DesktopFooterBar(settings = onboardingSettings)
     }
   }
 }
@@ -249,7 +253,10 @@ private fun DesktopTopHeader(
         BreadcrumbContent(currentScreen, onNavigate)
       }
 
-      Row(verticalAlignment = Alignment.CenterVertically, horizontalArrangement = Arrangement.spacedBy(Dimens.SpacingM)) {
+      Row(
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.spacedBy(Dimens.SpacingM)
+      ) {
         // Profil / Logout Bereich
         Text(
           text = "Administrator",
@@ -296,6 +303,7 @@ private fun BreadcrumbContent(
         style = MaterialTheme.typography.bodyMedium.copy(fontWeight = FontWeight.SemiBold),
       )
     }
+
     is AppScreen.VeranstalterDetail -> {
       BreadcrumbSeparator()
       Text(
@@ -309,6 +317,7 @@ private fun BreadcrumbContent(
         style = MaterialTheme.typography.bodyMedium.copy(fontWeight = FontWeight.SemiBold),
       )
     }
+
     is AppScreen.VeranstaltungProfil -> {
       BreadcrumbSeparator()
       Text(
@@ -330,6 +339,7 @@ private fun BreadcrumbContent(
         style = MaterialTheme.typography.bodyMedium.copy(fontWeight = FontWeight.SemiBold),
       )
     }
+
     is AppScreen.VeranstaltungDetail -> {
       BreadcrumbSeparator()
       Text(
@@ -337,6 +347,7 @@ private fun BreadcrumbContent(
         style = MaterialTheme.typography.bodyMedium,
       )
     }
+
     is AppScreen.VeranstaltungNeu -> {
       BreadcrumbSeparator()
       Text(
@@ -344,6 +355,7 @@ private fun BreadcrumbContent(
         style = MaterialTheme.typography.bodyMedium,
       )
     }
+
     is AppScreen.TurnierDetail -> {
       BreadcrumbSeparator()
       Text(
@@ -359,6 +371,7 @@ private fun BreadcrumbContent(
         style = MaterialTheme.typography.bodyMedium.copy(fontWeight = FontWeight.SemiBold),
       )
     }
+
     is AppScreen.Billing -> {
       BreadcrumbSeparator()
       Text(
@@ -382,6 +395,7 @@ private fun BreadcrumbContent(
         style = MaterialTheme.typography.bodyMedium.copy(fontWeight = FontWeight.SemiBold),
       )
     }
+
     is AppScreen.TurnierNeu -> {
       BreadcrumbSeparator()
       Text(
@@ -413,6 +427,7 @@ private fun BreadcrumbContent(
         style = MaterialTheme.typography.bodyMedium.copy(fontWeight = FontWeight.SemiBold),
       )
     }
+
     is AppScreen.Meisterschaften -> {
       BreadcrumbSeparator()
       Text(
@@ -420,6 +435,7 @@ private fun BreadcrumbContent(
         style = MaterialTheme.typography.bodyMedium.copy(fontWeight = FontWeight.SemiBold),
       )
     }
+
     is AppScreen.Cups -> {
       BreadcrumbSeparator()
       Text(
@@ -427,21 +443,22 @@ private fun BreadcrumbContent(
         style = MaterialTheme.typography.bodyMedium.copy(fontWeight = FontWeight.SemiBold),
       )
     }
+
     else -> {}
   }
 }
 
 // Hilfsfunktion: OEPS-Bundeslandcode → Abkürzung
 private fun mapOepsToBundesland(code: String): String = when (code.uppercase()) {
-  "OOE" -> "OÖ"
-  "NOE" -> "NÖ"
-  "ST" -> "Stmk."
+  "OÖ" -> "Oberösterreich"
+  "NÖ" -> "Niederösterreich"
+  "ST" -> "Steiermark"
   "W" -> "Wien"
-  "BGLD", "B" -> "Bgld."
-  "K" -> "Ktn."
-  "S" -> "Sbg."
+  "B" -> "Burgenland"
+  "K" -> "Kärnten"
+  "S" -> "Salzburg"
   "T" -> "Tirol"
-  "V" -> "Vbg."
+  "V" -> "Vorarlberg"
   else -> code
 }
 
@@ -621,6 +638,7 @@ private fun DesktopContentArea(
       onCancel = onBack,
       onVereinCreated = { newId -> onNavigate(AppScreen.VeranstalterProfil(newId)) }
     )
+
     is AppScreen.VeranstalterDetail -> {
       val vId = currentScreen.veranstalterId
       if (vId != 1L) { // Temporärer Check für Mock-Daten
@@ -637,6 +655,7 @@ private fun DesktopContentArea(
         )
       }
     }
+
     is AppScreen.VeranstaltungKonfig -> {
       val vId = currentScreen.veranstalterId
       // Falls vId == 0, kommen wir aus der Gesamtübersicht und wählen erst im Wizard
@@ -694,7 +713,8 @@ private fun DesktopContentArea(
         val v = at.mocode.desktop.v2.StoreV2.vereine.firstOrNull { vv ->
           at.mocode.desktop.v2.StoreV2.eventsFor(vv.id).any { it.id == currentScreen.id }
         }
-        val veranstaltung = v?.let { at.mocode.desktop.v2.StoreV2.eventsFor(it.id).firstOrNull { e -> e.id == currentScreen.id } }
+        val veranstaltung =
+          v?.let { at.mocode.desktop.v2.StoreV2.eventsFor(it.id).firstOrNull { e -> e.id == currentScreen.id } }
         val list = at.mocode.desktop.v2.TurnierStoreV2.list(currentScreen.id)
         val newId = (list.maxOfOrNull { it.id } ?: 0L) + 1L
         val draft = at.mocode.desktop.v2.TurnierV2(
@@ -709,6 +729,7 @@ private fun DesktopContentArea(
       },
       onTurnierOeffnen = { tid -> onNavigate(AppScreen.TurnierDetail(currentScreen.id, tid)) },
     )
+
     is AppScreen.VeranstaltungNeu -> VeranstaltungNeuScreen(
       onBack = onBack,
       onSave = { onBack() },
@@ -743,6 +764,7 @@ private fun DesktopContentArea(
         )
       }
     }
+
     is AppScreen.TurnierNeu -> {
       val evtId = currentScreen.veranstaltungId
       // V2: Wir erlauben Turnier-Nr nur, wenn die Veranstaltung im V2-Store existiert
@@ -800,11 +822,11 @@ private fun DesktopContentArea(
     }
 
     is AppScreen.Meisterschaften -> {
-        SeriesScreen(title = "Meisterschaften", onBack = onBack)
+      SeriesScreen(title = "Meisterschaften", onBack = onBack)
     }
 
     is AppScreen.Cups -> {
-        SeriesScreen(title = "Cups", onBack = onBack)
+      SeriesScreen(title = "Cups", onBack = onBack)
     }
 
     is AppScreen.Nennung -> {
@@ -832,11 +854,22 @@ private fun DesktopContentArea(
 }
 
 @Composable
-private fun DesktopFooterBar() {
-  // Echte Status-Logik vorbereitet
-  val online = remember { mutableStateOf(true) }
-  val deviceConnected = remember { mutableStateOf(true) }
-  val deviceName = "Richter-Turm"
+private fun DesktopFooterBar(settings: OnboardingSettings) {
+  val connectivityTracker = koinInject<ConnectivityTracker>()
+  val discoveryService = koinInject<NetworkDiscoveryService>()
+
+  val online by connectivityTracker.isOnline.collectAsState()
+  val discoveredServices = remember { mutableStateOf(discoveryService.getDiscoveredServices()) }
+  val deviceName = settings.geraetName.ifBlank { "Unbekannt" }
+
+  // Periodisches Update der LAN-Geräte (mDNS)
+  LaunchedEffect(Unit) {
+    discoveryService.startDiscovery()
+    while (true) {
+      discoveredServices.value = discoveryService.getDiscoveredServices()
+      delay(5000.milliseconds)
+    }
+  }
 
   Surface(
     color = MaterialTheme.colorScheme.surface,
@@ -854,18 +887,19 @@ private fun DesktopFooterBar() {
       Row(verticalAlignment = Alignment.CenterVertically) {
         // Status: Cloud Sync
         StatusIndicator(
-          icon = if (online.value) Icons.Filled.CloudDone else Icons.Filled.CloudOff,
-          label = if (online.value) "Cloud synchronisiert" else "Offline (Lokal)",
-          color = if (online.value) Color(0xFF2E7D32) else MaterialTheme.colorScheme.error
+          icon = if (online) Icons.Filled.CloudDone else Icons.Filled.CloudOff,
+          label = if (online) "Cloud synchronisiert" else "Offline (Lokal)",
+          color = if (online) Color(0xFF2E7D32) else MaterialTheme.colorScheme.error
         )
 
         Spacer(Modifier.width(Dimens.SpacingM))
 
         // Status: LAN Devices (mDNS)
+        val deviceCount = discoveredServices.value.size
         StatusIndicator(
           icon = Icons.Filled.Lan,
-          label = if (deviceConnected.value) "Verbunden: $deviceName" else "Suche nach Geräten...",
-          color = if (deviceConnected.value) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.outline
+          label = if (deviceCount > 0) "Verbunden: $deviceName ($deviceCount im Netz)" else "Lokal: $deviceName",
+          color = if (deviceCount > 0) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.outline
         )
       }