feat: implement LiveTicker functionality with sound notifications and UI updates

android-app/app/src/main/java/de/harheimertc/data/ApiService.kt

@@ -37,6 +37,22 @@ data class SpielplanResponse(
     val season: String? = null,
     val seasons: List<SeasonDto> = emptyList(),
 )
+data class LiveTickerResponse(
+    val matches: List<LiveTickerMatchDto> = emptyList(),
+    val updatedAt: String? = null,
+)
+data class LiveTickerMatchDto(
+    val meetingId: String = "",
+    val homeTeam: String = "",
+    val awayTeam: String = "",
+    val score: String = "",
+    val startsAt: Long = 0,
+    val hasLiveData: Boolean = false,
+    val completed: Boolean = false,
+    val completedAt: Long? = null,
+    val updatedAt: String? = null,
+    val error: String? = null,
+)
 data class SeasonDto(val slug: String = "", val label: String = "")
 data class MannschaftenSeasonsResponse(
     val success: Boolean = false,
@@ -726,6 +742,9 @@ interface ApiService {
     @GET("/api/mitgliederbereich/qttr")
     suspend fun qttrValues(): Response<QttrValuesResponse>
 
+    @GET("/api/mitgliederbereich/live-ticker")
+    suspend fun liveTicker(): Response<LiveTickerResponse>
+
     @GET("/api/members")
     suspend fun members(): Response<MembersResponse>
 

android-app/app/src/main/java/de/harheimertc/repositories/LiveTickerRepository.kt

@@ -0,0 +1,17 @@
+package de.harheimertc.repositories
+
+import de.harheimertc.data.ApiService
+import de.harheimertc.data.LiveTickerMatchDto
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class LiveTickerRepository @Inject constructor(private val api: ApiService) {
+    suspend fun fetch(): Result<List<LiveTickerMatchDto>> = runCatching {
+        retryOnNetworkFailure {
+            val response = api.liveTicker()
+            if (!response.isSuccessful) error("Live-Ergebnisse konnten nicht geladen werden.")
+            response.body()?.matches ?: emptyList()
+        }
+    }
+}

android-app/app/src/main/java/de/harheimertc/ui/components/LiveTickerBanner.kt

@@ -0,0 +1,78 @@
+package de.harheimertc.ui.components
+
+import androidx.compose.foundation.horizontalScroll
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontStyle
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import de.harheimertc.data.LiveTickerMatchDto
+
+@Composable
+fun LiveTickerBanner(matches: List<LiveTickerMatchDto>, loaded: Boolean) {
+    var observedLoadedState by remember { mutableStateOf(false) }
+    var previousStates by remember { mutableStateOf<Map<String, String>>(emptyMap()) }
+
+    LaunchedEffect(matches, loaded) {
+        if (!loaded) {
+            observedLoadedState = false
+            previousStates = emptyMap()
+            return@LaunchedEffect
+        }
+        val currentStates = matches.associate { match ->
+            (match.meetingId.ifBlank { "${match.homeTeam}-${match.awayTeam}-${match.startsAt}" }) to
+                "${match.hasLiveData}|${match.score}|${match.completed}"
+        }
+        if (observedLoadedState && currentStates.any { (id, state) -> previousStates[id] != state }) {
+            LiveTickerSound.play()
+        }
+        previousStates = currentStates
+        observedLoadedState = true
+    }
+
+    if (matches.isEmpty()) return
+
+    Surface(color = Color(0xFFEAF8F8), modifier = Modifier.fillMaxWidth()) {
+        Row(
+            modifier = Modifier
+                .horizontalScroll(rememberScrollState())
+                .padding(horizontal = 16.dp, vertical = 9.dp),
+        ) {
+            matches.forEachIndexed { index, match ->
+                if (index > 0) {
+                    Text("  •  ", color = Color(0xFF64748B))
+                }
+                val status = when {
+                    match.completed -> "✓ beendet"
+                    match.hasLiveData -> "● LIVE"
+                    else -> "◌ Keine Live-Daten"
+                }
+                Text(
+                    text = "$status  ${match.homeTeam} – ${match.awayTeam}  ${match.score}",
+                    color = when {
+                        match.completed -> Color(0xFF64748B)
+                        match.hasLiveData -> Color(0xFFB91C1C)
+                        else -> Color(0xFF334155)
+                    },
+                    style = MaterialTheme.typography.labelLarge,
+                    fontWeight = if (match.completed) FontWeight.Normal else FontWeight.SemiBold,
+                    fontStyle = if (match.completed) FontStyle.Italic else FontStyle.Normal,
+                    maxLines = 1,
+                )
+            }
+        }
+    }
+}

android-app/app/src/main/java/de/harheimertc/ui/components/LiveTickerSound.kt

@@ -0,0 +1,15 @@
+package de.harheimertc.ui.components
+
+import android.media.AudioManager
+import android.media.ToneGenerator
+
+/** A generated system tone; no audio asset or third-party licence is required. */
+object LiveTickerSound {
+    private val toneGenerator by lazy { ToneGenerator(AudioManager.STREAM_NOTIFICATION, 65) }
+
+    fun play() {
+        runCatching {
+            toneGenerator.startTone(ToneGenerator.TONE_PROP_BEEP2, 170)
+        }
+    }
+}

android-app/app/src/main/java/de/harheimertc/ui/navigation/NavGraph.kt

@@ -25,6 +25,7 @@ import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import de.harheimertc.ui.components.AppNavigationHeader
+import de.harheimertc.ui.components.LiveTickerBanner
 
 @Composable
 fun NavGraph(
@@ -44,6 +45,11 @@ fun NavGraph(
     LaunchedEffect(currentRoute) {
         navigationViewModel.refreshSession()
     }
+    LaunchedEffect(currentRoute, navigationState.loggedIn) {
+        navigationViewModel.setLiveTickerActive(
+            navigationState.loggedIn && (currentRoute == "intern" || currentRoute?.startsWith("intern/") == true || currentRoute == "cms" || currentRoute?.startsWith("cms/") == true),
+        )
+    }
     BoxWithConstraints(modifier = Modifier.fillMaxSize()) {
         val persistentNavigation = maxWidth >= 600.dp
         Column(modifier = Modifier.fillMaxSize()) {
@@ -72,6 +78,10 @@ fun NavGraph(
                     navigationState = navigationState,
                 )
             }
+            LiveTickerBanner(
+                matches = navigationState.liveTickerMatches,
+                loaded = navigationState.liveTickerLoaded,
+            )
             NavHost(
                 navController = navController,
                 startDestination = startDestination,

android-app/app/src/main/java/de/harheimertc/ui/navigation/NavigationViewModel.kt

@@ -4,15 +4,20 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
 import de.harheimertc.data.ConnectivityMonitor
+import de.harheimertc.data.LiveTickerMatchDto
 import de.harheimertc.repositories.AuthRepository
 import de.harheimertc.repositories.GalleryRepository
 import de.harheimertc.repositories.LoginRepository
+import de.harheimertc.repositories.LiveTickerRepository
 import de.harheimertc.repositories.Mannschaft
 import de.harheimertc.repositories.MannschaftenRepository
 import de.harheimertc.repositories.PushTokenRepository
 import kotlinx.coroutines.async
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.isActive
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
@@ -22,6 +27,8 @@ data class NavigationUiState(
     val loggedIn: Boolean = false,
     val roles: Set<String> = emptySet(),
     val connectionNote: String? = null,
+    val liveTickerMatches: List<LiveTickerMatchDto> = emptyList(),
+    val liveTickerLoaded: Boolean = false,
 ) {
     val isAdmin: Boolean get() = "admin" in roles
     val canAccessFullCms: Boolean get() = roles.any { it in setOf("admin", "vorstand") }
@@ -39,9 +46,12 @@ class NavigationViewModel @Inject constructor(
     private val authRepository: AuthRepository,
     private val connectivityMonitor: ConnectivityMonitor,
     private val pushTokenRepository: PushTokenRepository,
+    private val liveTickerRepository: LiveTickerRepository,
 ) : ViewModel() {
     private val _state = MutableStateFlow(NavigationUiState())
     val state: StateFlow<NavigationUiState> = _state
+    private var tickerJob: Job? = null
+    private var tickerActive = false
 
     init {
         loadNavigationData()
@@ -70,6 +80,8 @@ class NavigationViewModel @Inject constructor(
                 loggedIn = loggedIn,
                 roles = status.navigationRoles(),
                 connectionNote = null,
+                liveTickerMatches = _state.value.liveTickerMatches,
+                liveTickerLoaded = _state.value.liveTickerLoaded,
             )
             if (loggedIn) registerPushToken()
         }
@@ -89,6 +101,24 @@ class NavigationViewModel @Inject constructor(
         }
     }
 
+    fun setLiveTickerActive(active: Boolean) {
+        if (tickerActive == active) return
+        tickerActive = active
+        tickerJob?.cancel()
+        if (!active) {
+            _state.value = _state.value.copy(liveTickerMatches = emptyList(), liveTickerLoaded = false)
+            return
+        }
+        tickerJob = viewModelScope.launch {
+            while (isActive) {
+                liveTickerRepository.fetch().onSuccess { matches ->
+                    _state.value = _state.value.copy(liveTickerMatches = matches, liveTickerLoaded = true)
+                }
+                delay(30_000)
+            }
+        }
+    }
+
     private fun registerPushToken() {
         viewModelScope.launch {
             pushTokenRepository.registerCurrentDevice()
@@ -96,6 +126,7 @@ class NavigationViewModel @Inject constructor(
     }
 
     fun logout(onComplete: () -> Unit = {}) {
+        setLiveTickerActive(false)
         viewModelScope.launch {
             loginRepository.logout()
             _state.value = _state.value.copy(