chore: implementiere Lockscreen-Logik für Geräte- und Veranstaltungsinitialisierung, füge Zustandsprüfungen und neue UI-Komponenten hinzu

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

frontend/features/device-initialization/src/commonMain/kotlin/at/mocode/frontend/features/device/initialization/presentation/DeviceInitializationScreen.kt

@@ -9,6 +9,7 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.automirrored.filled.ArrowForward
 import androidx.compose.material.icons.filled.Check
+import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
@@ -69,31 +70,45 @@ fun DeviceInitializationScreen(
             NetworkRoleSelector(
               selectedRole = uiState.settings.networkRole,
               onRoleSelected = {
+                if (uiState.settings.networkRole != it && uiState.settings.deviceName.isNotBlank()) {
+                   // Hier könnte ein Dialog kommen, aber fürs Erste einfach setzen
+                }
                 viewModel.setNetworkRole(it)
                 focusManager.moveFocus(FocusDirection.Next)
               },
-              modifier = Modifier.focusRequester(roleSelectorFocus)
+              modifier = Modifier.focusRequester(roleSelectorFocus),
+              enabled = !uiState.isLocked
             )
 
-            Button(
+            if (!uiState.isLocked) {
-              onClick = { viewModel.nextStep() },
+              Button(
-              modifier = Modifier
+                onClick = { viewModel.nextStep() },
-                .align(Alignment.End)
+                modifier = Modifier
-                .focusRequester(nextButtonFocus)
+                  .align(Alignment.End)
-                .onKeyEvent {
+                  .focusRequester(nextButtonFocus)
-                  if ((it.key == Key.Enter || it.key == Key.Spacebar) && it.type == KeyEventType.KeyUp) {
+                  .onKeyEvent {
-                    viewModel.nextStep()
+                    if ((it.key == Key.Enter || it.key == Key.Spacebar) && it.type == KeyEventType.KeyUp) {
-                    true
+                      viewModel.nextStep()
-                  } else false
+                      true
-                }
+                    } else false
-            ) {
+                  }
-              Text("Weiter")
+              ) {
-              Icon(Icons.AutoMirrored.Filled.ArrowForward, contentDescription = null)
+                Text("Weiter")
+                Icon(Icons.AutoMirrored.Filled.ArrowForward, contentDescription = null)
+              }
+            } else {
+              Button(
+                onClick = { viewModel.nextStep() },
+                modifier = Modifier.align(Alignment.End)
+              ) {
+                Text("Zur Konfiguration")
+                Icon(Icons.AutoMirrored.Filled.ArrowForward, null)
+              }
             }
           }
         }
       } else {
-        // PHASE 2: ROLLENSPEZIFISCH (JVM spezifische Implementierung folgt)
+        // PHASE 2 & Review
         DeviceInitializationConfig(
           uiState = uiState,
           viewModel = viewModel
@@ -110,12 +125,24 @@ fun DeviceInitializationScreen(
             Text("Zurück zur Rollenauswahl")
           }
 
-          Button(
+          if (uiState.isLocked) {
-            onClick = { viewModel.completeInitialization() },
+            Button(
-            enabled = DeviceInitializationValidator.canContinue(uiState.settings)
+              onClick = { viewModel.unlockConfiguration() },
-          ) {
+              colors = ButtonDefaults.buttonColors(
-            Text("Konfiguration abschließen")
+                containerColor = MaterialTheme.colorScheme.secondary
-            Icon(Icons.Default.Check, null, Modifier.padding(start = 8.dp))
+              )
+            ) {
+              Text("Konfiguration bearbeiten")
+              Icon(Icons.Default.Edit, null, Modifier.padding(start = 8.dp))
+            }
+          } else {
+            Button(
+              onClick = { viewModel.completeInitialization() },
+              enabled = DeviceInitializationValidator.canContinue(uiState.settings)
+            ) {
+              Text("Konfiguration finalisieren & Sperren")
+              Icon(Icons.Default.Check, null, Modifier.padding(start = 8.dp))
+            }
           }
         }
       }

frontend/features/device-initialization/src/commonMain/kotlin/at/mocode/frontend/features/device/initialization/presentation/DeviceInitializationUiState.kt

@@ -10,5 +10,6 @@ data class DeviceInitializationUiState(
   val settings: DeviceInitializationSettings = DeviceInitializationSettings(),
   val discoveredMasters: List<DiscoveredService> = emptyList(),
   val isProcessing: Boolean = false,
-  val error: String? = null
+  val error: String? = null,
+  val isLocked: Boolean = false
 )

frontend/features/device-initialization/src/commonMain/kotlin/at/mocode/frontend/features/device/initialization/presentation/DeviceInitializationViewModel.kt

@@ -1,16 +1,14 @@
 @file:Suppress("EXPECT_ACTUAL_CLASSIFIERS_ARE_IN_BETA_WARNING")
 
 package at.mocode.frontend.features.device.initialization.presentation
-import at.mocode.frontend.features.device.initialization.domain.model.DeviceInitializationSettings
-import at.mocode.frontend.features.device.initialization.domain.model.NetworkRole
-import at.mocode.frontend.features.device.initialization.domain.model.ExpectedClient
-
-
 
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import at.mocode.frontend.core.network.discovery.NetworkDiscoveryService
+import at.mocode.frontend.features.device.initialization.domain.model.DeviceInitializationSettings
+import at.mocode.frontend.features.device.initialization.domain.model.ExpectedClient
+import at.mocode.frontend.features.device.initialization.domain.model.NetworkRole
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
@@ -75,7 +73,13 @@ class DeviceInitializationViewModel(
   }
 
   fun completeInitialization() {
-    println("[DeviceInit] Konfiguration abgeschlossen. Speichere Einstellungen...")
+    println("[DeviceInit] Konfiguration wird finalisiert...")
+    _uiState.update { it.copy(isLocked = true) }
     onInitializationComplete(_uiState.value.settings)
   }
+
+  fun unlockConfiguration() {
+    println("[DeviceInit] Konfiguration entsperrt für Änderungen.")
+    _uiState.update { it.copy(isLocked = false) }
+  }
 }

frontend/features/device-initialization/src/commonMain/kotlin/at/mocode/frontend/features/device/initialization/presentation/NetworkRoleSelector.kt

@@ -18,16 +18,18 @@ import at.mocode.frontend.features.device.initialization.domain.model.NetworkRol
 fun NetworkRoleSelector(
   selectedRole: NetworkRole,
   onRoleSelected: (NetworkRole) -> Unit,
-  modifier: Modifier = Modifier
+  modifier: Modifier = Modifier,
+  enabled: Boolean = true
 ) {
   Column(modifier = modifier, verticalArrangement = Arrangement.spacedBy(8.dp)) {
     NetworkRoleCard(
       title = "Master (Host)",
       description = "Verwaltet die zentrale Datenbank und koordiniert den Sync.",
       isSelected = selectedRole == NetworkRole.MASTER,
-      onClick = { onRoleSelected(NetworkRole.MASTER) },
+      onClick = { if (enabled) onRoleSelected(NetworkRole.MASTER) },
+      enabled = enabled,
       modifier = Modifier.onKeyEvent {
-        if ((it.key == Key.Enter || it.key == Key.Spacebar) && it.type == KeyEventType.KeyUp) {
+        if (enabled && (it.key == Key.Enter || it.key == Key.Spacebar) && it.type == KeyEventType.KeyUp) {
           onRoleSelected(NetworkRole.MASTER)
           true
         } else false
@@ -38,9 +40,10 @@ fun NetworkRoleSelector(
       title = "Client",
       description = "Verbindet sich mit einem Master-Gerät im lokalen Netzwerk.",
       isSelected = selectedRole == NetworkRole.CLIENT,
-      onClick = { onRoleSelected(NetworkRole.CLIENT) },
+      onClick = { if (enabled) onRoleSelected(NetworkRole.CLIENT) },
+      enabled = enabled,
       modifier = Modifier.onKeyEvent {
-        if ((it.key == Key.Enter || it.key == Key.Spacebar) && it.type == KeyEventType.KeyUp) {
+        if (enabled && (it.key == Key.Enter || it.key == Key.Spacebar) && it.type == KeyEventType.KeyUp) {
           onRoleSelected(NetworkRole.CLIENT)
           true
         } else false
@@ -55,24 +58,36 @@ private fun NetworkRoleCard(
   description: String,
   isSelected: Boolean,
   onClick: () -> Unit,
-  modifier: Modifier = Modifier
+  modifier: Modifier = Modifier,
+  enabled: Boolean = true
 ) {
   Surface(
     onClick = onClick,
+    enabled = enabled,
     shape = MaterialTheme.shapes.medium,
-    color = if (isSelected) MaterialTheme.colorScheme.primaryContainer else MaterialTheme.colorScheme.surfaceVariant,
+    color = when {
+      isSelected -> MaterialTheme.colorScheme.primaryContainer
+      !enabled -> MaterialTheme.colorScheme.surfaceVariant.copy(alpha = 0.5f)
+      else -> MaterialTheme.colorScheme.surfaceVariant
+    },
     modifier = modifier.fillMaxWidth()
   ) {
     Row(Modifier.padding(16.dp), verticalAlignment = Alignment.CenterVertically) {
       RadioButton(
         selected = isSelected,
-        onClick = null
+        onClick = null,
+        enabled = enabled
       )
       Column {
-        Text(title, style = MaterialTheme.typography.labelLarge)
+        Text(
+          title,
+          style = MaterialTheme.typography.labelLarge,
+          color = if (enabled) MaterialTheme.colorScheme.onSurface else MaterialTheme.colorScheme.onSurface.copy(alpha = 0.38f)
+        )
         Text(
           description,
-          style = MaterialTheme.typography.bodySmall
+          style = MaterialTheme.typography.bodySmall,
+          color = if (enabled) MaterialTheme.colorScheme.onSurfaceVariant else MaterialTheme.colorScheme.onSurfaceVariant.copy(alpha = 0.38f)
         )
       }
     }

frontend/features/device-initialization/src/jvmMain/kotlin/at/mocode/frontend/features/device/initialization/presentation/DeviceInitializationConfig.jvm.kt

@@ -60,7 +60,8 @@ actual fun DeviceInitializationConfig(
         errorMessage = "Mindestens ${DeviceInitializationValidator.MIN_NAME_LENGTH} Zeichen erforderlich.",
         imeAction = ImeAction.Next,
         keyboardActions = KeyboardActions(onNext = { focusManager.moveFocus(FocusDirection.Next) }),
-        modifier = Modifier.focusRequester(deviceNameFocus)
+        modifier = Modifier.focusRequester(deviceNameFocus),
+        enabled = !uiState.isLocked
       )
 
       var passwordVisible by remember { mutableStateOf(false) }
@@ -71,14 +72,15 @@ actual fun DeviceInitializationConfig(
         placeholder = "Mindestens 8 Zeichen",
         isError = settings.sharedKey.isNotEmpty() && !DeviceInitializationValidator.isKeyValid(settings.sharedKey),
         errorMessage = "Mindestens ${DeviceInitializationValidator.MIN_KEY_LENGTH} Zeichen erforderlich.",
-        visualTransformation = if (passwordVisible) VisualTransformation.None else PasswordVisualTransformation(),
+        visualTransformation = if (passwordVisible || uiState.isLocked) VisualTransformation.None else PasswordVisualTransformation(),
         imeAction = ImeAction.Next,
         keyboardActions = KeyboardActions(
           onNext = { focusManager.moveFocus(FocusDirection.Next) }
         ),
         modifier = Modifier.focusRequester(sharedKeyFocus),
         trailingIcon = if (passwordVisible) Icons.Outlined.VisibilityOff else Icons.Outlined.Visibility,
-        onTrailingIconClick = { passwordVisible = !passwordVisible }
+        onTrailingIconClick = { passwordVisible = !passwordVisible },
+        enabled = !uiState.isLocked
       )
 
       MsFilePicker(
@@ -88,7 +90,18 @@ actual fun DeviceInitializationConfig(
           viewModel.updateSettings { s -> s.copy(backupPath = selectedPath) }
         },
         directoryOnly = true,
-        modifier = Modifier.focusRequester(backupPathFocus)
+        modifier = Modifier.focusRequester(backupPathFocus),
+        enabled = !uiState.isLocked
+      )
+
+      MsTextField(
+        value = settings.defaultPrinter,
+        onValueChange = { viewModel.updateSettings { s -> s.copy(defaultPrinter = it) } },
+        label = "Standard-Drucker",
+        placeholder = "z.B. Brother-HL-L2350DW",
+        enabled = !uiState.isLocked,
+        imeAction = ImeAction.Done,
+        keyboardActions = KeyboardActions(onDone = { focusManager.clearFocus() })
       )
 
       if (settings.networkRole == NetworkRole.MASTER) {
@@ -97,21 +110,24 @@ actual fun DeviceInitializationConfig(
           value = settings.syncInterval.toFloat(),
           onValueChange = { viewModel.updateSettings { s -> s.copy(syncInterval = it.toInt()) } },
           valueRange = 1f..60f,
-          steps = 59
+          steps = 59,
+          enabled = !uiState.isLocked
         )
       } else {
         // Button zum Abschließen für Clients, da diese keinen Slider/Clients haben
         Spacer(Modifier.height(8.dp))
-        Button(
+        if (!uiState.isLocked) {
-          onClick = { viewModel.completeInitialization() },
+          Button(
-          modifier = Modifier.fillMaxWidth(),
+            onClick = { viewModel.completeInitialization() },
-          enabled = DeviceInitializationValidator.canContinue(settings)
+            modifier = Modifier.fillMaxWidth(),
-        ) {
+            enabled = DeviceInitializationValidator.canContinue(settings)
-          Text("Konfiguration abschließen")
+          ) {
+            Text("Konfiguration abschließen")
+          }
         }
       }
 
-      if (settings.networkRole == NetworkRole.MASTER) {
+      if (settings.networkRole == NetworkRole.MASTER && !uiState.isLocked) {
         HorizontalDivider(Modifier, DividerDefaults.Thickness, DividerDefaults.color)
         Text("👥 Erwartete Clients", style = MaterialTheme.typography.titleSmall)
 
@@ -255,6 +271,18 @@ actual fun DeviceInitializationConfig(
           color = MaterialTheme.colorScheme.onSurfaceVariant
         )
       }
+      if (settings.networkRole == NetworkRole.MASTER && uiState.isLocked) {
+        HorizontalDivider(Modifier, DividerDefaults.Thickness, DividerDefaults.color)
+        Text("👥 Erwartete Clients", style = MaterialTheme.typography.titleSmall)
+        settings.expectedClients.forEach { client ->
+          ListItem(
+            headlineContent = { Text(client.name) },
+            trailingContent = {
+              SuggestionChip(onClick = {}, label = { Text(client.role.name) })
+            }
+          )
+        }
+      }
     }
   }
 }

frontend/features/veranstaltung-feature/src/jvmMain/kotlin/at/mocode/veranstaltung/feature/di/VeranstaltungModule.kt

@@ -1,8 +1,10 @@
 package at.mocode.veranstaltung.feature.di
 
 import at.mocode.veranstaltung.feature.presentation.VeranstaltungManagementViewModel
+import at.mocode.veranstaltung.feature.presentation.VeranstaltungWizardViewModel
 import org.koin.dsl.module
 
 val veranstaltungModule = module {
   factory { VeranstaltungManagementViewModel(get()) }
+  factory { VeranstaltungWizardViewModel(get(), get(), get()) }
 }

frontend/features/veranstaltung-feature/src/jvmMain/kotlin/at/mocode/veranstaltung/feature/presentation/VeranstaltungWizardScreen.kt

@@ -0,0 +1,285 @@
+package at.mocode.veranstaltung.feature.presentation
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material.icons.filled.Check
+import androidx.compose.material.icons.filled.CloudDownload
+import androidx.compose.material.icons.filled.Info
+import androidx.compose.material3.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import at.mocode.frontend.core.designsystem.theme.Dimens
+import kotlin.uuid.ExperimentalUuidApi
+
+@OptIn(ExperimentalMaterial3Api::class, ExperimentalUuidApi::class)
+@Composable
+fun VeranstaltungWizardScreen(
+    viewModel: VeranstaltungWizardViewModel,
+    onBack: () -> Unit,
+    onFinish: () -> Unit
+) {
+    val state = viewModel.state
+
+    Scaffold(
+        topBar = {
+            Column {
+                TopAppBar(
+                    title = { Text("Neue Veranstaltung anlegen") },
+                    navigationIcon = {
+                        IconButton(onClick = {
+                            if (state.currentStep == WizardStep.ZNS_CHECK) onBack()
+                            else viewModel.previousStep()
+                        }) {
+                            Icon(Icons.AutoMirrored.Filled.ArrowBack, "Zurück")
+                        }
+                    }
+                )
+                LinearProgressIndicator(
+                    progress = { (state.currentStep.ordinal + 1).toFloat() / WizardStep.entries.size.toFloat() },
+                    modifier = Modifier.fillMaxWidth()
+                )
+            }
+        }
+    ) { padding ->
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(padding)
+        ) {
+            // Sticky Preview Card
+            VorschauCard(state = state)
+
+            Box(
+                modifier = Modifier
+                    .fillMaxSize()
+                    .padding(Dimens.SpacingL)
+                    .verticalScroll(rememberScrollState())
+            ) {
+                when (state.currentStep) {
+                    WizardStep.ZNS_CHECK -> ZnsCheckStep(viewModel)
+                    WizardStep.VERANSTALTER_SELECTION -> VeranstalterSelectionStep(viewModel)
+                    WizardStep.ANSPRECHPERSON_MAPPING -> AnsprechpersonMappingStep(viewModel)
+                    WizardStep.META_DATA -> MetaDataStep(viewModel)
+                    WizardStep.TURNIER_ANLAGE -> TurnierAnlageStep(viewModel)
+                    WizardStep.SUMMARY -> SummaryStep(viewModel, onFinish)
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun VorschauCard(state: VeranstaltungWizardState) {
+    Card(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(Dimens.SpacingM),
+        colors = CardDefaults.cardColors(
+            containerColor = MaterialTheme.colorScheme.primaryContainer
+        )
+    ) {
+        Row(
+            modifier = Modifier.padding(Dimens.SpacingM),
+            verticalAlignment = Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.spacedBy(Dimens.SpacingM)
+        ) {
+            // Placeholder für Logo
+            Box(
+                modifier = Modifier
+                    .size(64.dp)
+                    .background(MaterialTheme.colorScheme.surface, MaterialTheme.shapes.small),
+                contentAlignment = Alignment.Center
+            ) {
+                Text("LOGO", style = MaterialTheme.typography.labelSmall)
+            }
+
+            Column(modifier = Modifier.weight(1f)) {
+                Text(
+                    text = state.name.ifBlank { "Neue Veranstaltung" },
+                    style = MaterialTheme.typography.titleLarge,
+                    fontWeight = FontWeight.Bold
+                )
+                Text(
+                    text = state.veranstalterName.ifBlank { "Kein Veranstalter gewählt" },
+                    style = MaterialTheme.typography.bodyMedium
+                )
+                Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                    Text(
+                        text = state.ort.ifBlank { "Ort noch nicht festgelegt" },
+                        style = MaterialTheme.typography.bodySmall
+                    )
+                    Text(
+                        text = "| ${state.startDatum ?: ""} - ${state.endDatum ?: ""}",
+                        style = MaterialTheme.typography.bodySmall
+                    )
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun ZnsCheckStep(viewModel: VeranstaltungWizardViewModel) {
+    val state = viewModel.state
+    Column(verticalArrangement = Arrangement.spacedBy(16.dp)) {
+        Text("Schritt 1: Stammdaten-Verfügbarkeit prüfen", style = MaterialTheme.typography.titleLarge)
+
+        if (!state.isZnsAvailable) {
+            Card(colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.errorContainer)) {
+                Row(Modifier.padding(16.dp), verticalAlignment = Alignment.CenterVertically) {
+                    Icon(Icons.Default.Info, null, tint = MaterialTheme.colorScheme.error)
+                    Spacer(Modifier.width(12.dp))
+                    Column {
+                        Text("Stammdaten fehlen!", fontWeight = FontWeight.Bold)
+                        Text("Bitte importieren Sie die aktuelle ZNS.zip über den ZNS-Importer.")
+                    }
+                }
+            }
+            Button(onClick = { /* Navigiere zum ZNS Importer */ }) {
+                Icon(Icons.Default.CloudDownload, null)
+                Spacer(Modifier.width(8.dp))
+                Text("ZNS-Importer öffnen")
+            }
+        } else {
+            Card(colors = CardDefaults.cardColors(containerColor = Color(0xFFE8F5E9))) {
+                Row(Modifier.padding(16.dp), verticalAlignment = Alignment.CenterVertically) {
+                    Icon(Icons.Default.Check, null, tint = Color(0xFF2E7D32))
+                    Spacer(Modifier.width(12.dp))
+                    Text("Stammdaten sind aktuell und verfügbar.", color = Color(0xFF2E7D32))
+                }
+            }
+            Button(onClick = { viewModel.nextStep() }) {
+                Text("Weiter zur Veranstalter-Wahl")
+            }
+        }
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class, ExperimentalUuidApi::class)
+@Composable
+private fun VeranstalterSelectionStep(viewModel: VeranstaltungWizardViewModel) {
+    Column(verticalArrangement = Arrangement.spacedBy(16.dp)) {
+        Text("Schritt 2: Veranstalter auswählen", style = MaterialTheme.typography.titleLarge)
+        Text("Suchen Sie nach dem Verein (Name oder OEPS-Nummer).")
+
+        // Mock Suche
+        OutlinedTextField(
+            value = "",
+            onValueChange = {},
+            label = { Text("Verein suchen...") },
+            modifier = Modifier.fillMaxWidth()
+        )
+
+        Button(onClick = {
+            // Mock Selection
+            viewModel.setVeranstalter(
+                id = kotlin.uuid.Uuid.random(),
+                nummer = "6-009",
+                name = "Union Reit- u. Fahrverein Neumarkt/M.",
+                standardOrt = "4212 Neumarkt, Reitanlage Stroblmair",
+                logo = null
+            )
+            viewModel.nextStep()
+        }) {
+            Text("Union Reit- u. Fahrverein Neumarkt/M. (6-009) wählen")
+        }
+    }
+}
+
+@Composable
+private fun AnsprechpersonMappingStep(viewModel: VeranstaltungWizardViewModel) {
+    Column(verticalArrangement = Arrangement.spacedBy(16.dp)) {
+        Text("Schritt 3: Ansprechperson festlegen", style = MaterialTheme.typography.titleLarge)
+        Text("Wer ist für diese Veranstaltung verantwortlich?")
+
+        Button(onClick = {
+            viewModel.setAnsprechperson("12345", "Ursula Stroblmair")
+            viewModel.nextStep()
+        }) {
+            Text("Ursula Stroblmair (aus Stammdaten) verknüpfen")
+        }
+
+        OutlinedButton(onClick = { viewModel.nextStep() }) {
+            Text("Neue Person anlegen (Offline-Profil)")
+        }
+    }
+}
+
+@Composable
+private fun MetaDataStep(viewModel: VeranstaltungWizardViewModel) {
+    Column(verticalArrangement = Arrangement.spacedBy(16.dp)) {
+        Text("Schritt 4: Veranstaltungs-Parameter", style = MaterialTheme.typography.titleLarge)
+
+        OutlinedTextField(
+            value = viewModel.state.name,
+            onValueChange = { viewModel.updateMetaData(it, viewModel.state.ort, viewModel.state.startDatum, viewModel.state.endDatum, viewModel.state.logoUrl) },
+            label = { Text("Name der Veranstaltung") },
+            modifier = Modifier.fillMaxWidth()
+        )
+
+        OutlinedTextField(
+            value = viewModel.state.ort,
+            onValueChange = { viewModel.updateMetaData(viewModel.state.name, it, viewModel.state.startDatum, viewModel.state.endDatum, viewModel.state.logoUrl) },
+            label = { Text("Veranstaltungs-Ort") },
+            modifier = Modifier.fillMaxWidth()
+        )
+
+        Row(horizontalArrangement = Arrangement.spacedBy(16.dp)) {
+             // Mock Date Picker
+             Button(onClick = { viewModel.nextStep() }) {
+                 Text("Weiter zur Turnier-Anlage")
+             }
+        }
+    }
+}
+
+@Composable
+private fun TurnierAnlageStep(viewModel: VeranstaltungWizardViewModel) {
+    Column(verticalArrangement = Arrangement.spacedBy(16.dp)) {
+        Text("Schritt 5: Turniere & Ausschreibung", style = MaterialTheme.typography.titleLarge)
+        Text("Fügen Sie die pferdesportlichen Veranstaltungen (Turniere) hinzu.")
+
+        Card(modifier = Modifier.fillMaxWidth()) {
+            Column(Modifier.padding(16.dp)) {
+                Text("Turnier #1", fontWeight = FontWeight.Bold)
+                Text("Turnier-Nr: (noch nicht vergeben)")
+                Button(onClick = {}) {
+                    Text("Ausschreibung (PDF) hochladen")
+                }
+            }
+        }
+
+        Button(onClick = { viewModel.nextStep() }) {
+            Text("Zusammenfassung")
+        }
+    }
+}
+
+@Composable
+private fun SummaryStep(viewModel: VeranstaltungWizardViewModel, onFinish: () -> Unit) {
+    Column(verticalArrangement = Arrangement.spacedBy(16.dp)) {
+        Text("Schritt 6: Zusammenfassung", style = MaterialTheme.typography.titleLarge)
+
+        Card(modifier = Modifier.fillMaxWidth()) {
+            Column(Modifier.padding(16.dp)) {
+                Text("Überprüfen Sie Ihre Angaben, bevor Sie die Veranstaltung anlegen.")
+                // ... Summary Details ...
+            }
+        }
+
+        Button(
+            onClick = onFinish,
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text("Veranstaltung jetzt anlegen")
+        }
+    }
+}

frontend/features/veranstaltung-feature/src/jvmMain/kotlin/at/mocode/veranstaltung/feature/presentation/VeranstaltungWizardViewModel.kt

@@ -19,22 +19,31 @@ import kotlin.uuid.ExperimentalUuidApi
 import kotlin.uuid.Uuid
 
 enum class WizardStep {
-  ZNS_IMPORT,
+  ZNS_CHECK,
+  VERANSTALTER_SELECTION,
+  ANSPRECHPERSON_MAPPING,
   META_DATA,
-  TYPE_SELECTION
+  TURNIER_ANLAGE,
+  SUMMARY
 }
 
 @OptIn(ExperimentalUuidApi::class)
 data class VeranstaltungWizardState(
-  val currentStep: WizardStep = WizardStep.ZNS_IMPORT,
+  val currentStep: WizardStep = WizardStep.ZNS_CHECK,
   val veranstalterId: Uuid? = null,
+  val veranstalterVereinsNummer: String = "",
+  val veranstalterName: String = "",
+  val ansprechpersonSatznummer: String = "",
+  val ansprechpersonName: String = "",
   val name: String = "",
   val ort: String = "",
   val startDatum: LocalDate? = null,
   val endDatum: LocalDate? = null,
+  val logoUrl: String? = null,
   val isSaving: Boolean = false,
   val error: String? = null,
-  val createdVeranstaltungId: Uuid? = null
+  val createdVeranstaltungId: Uuid? = null,
+  val isZnsAvailable: Boolean = false
 )
 
 @OptIn(ExperimentalUuidApi::class)
@@ -47,12 +56,27 @@ class VeranstaltungWizardViewModel(
   var state by mutableStateOf(VeranstaltungWizardState())
     private set
 
+  init {
+    checkZnsAvailability()
+  }
+
+  fun checkZnsAvailability() {
+    // Hier prüfen wir, ob Stammdaten vorhanden sind (Simuliert)
+    viewModelScope.launch {
+      val hasData = true // Simulation: Stammdaten sind da
+      state = state.copy(isZnsAvailable = hasData)
+    }
+  }
+
   fun nextStep() {
     state = state.copy(
       currentStep = when (state.currentStep) {
-        WizardStep.ZNS_IMPORT -> WizardStep.META_DATA
+        WizardStep.ZNS_CHECK -> WizardStep.VERANSTALTER_SELECTION
-        WizardStep.META_DATA -> WizardStep.TYPE_SELECTION
+        WizardStep.VERANSTALTER_SELECTION -> WizardStep.ANSPRECHPERSON_MAPPING
-        WizardStep.TYPE_SELECTION -> WizardStep.TYPE_SELECTION
+        WizardStep.ANSPRECHPERSON_MAPPING -> WizardStep.META_DATA
+        WizardStep.META_DATA -> WizardStep.TURNIER_ANLAGE
+        WizardStep.TURNIER_ANLAGE -> WizardStep.SUMMARY
+        WizardStep.SUMMARY -> WizardStep.SUMMARY
       }
     )
   }
@@ -60,19 +84,32 @@ class VeranstaltungWizardViewModel(
   fun previousStep() {
     state = state.copy(
       currentStep = when (state.currentStep) {
-        WizardStep.ZNS_IMPORT -> WizardStep.ZNS_IMPORT
+        WizardStep.ZNS_CHECK -> WizardStep.ZNS_CHECK
-        WizardStep.META_DATA -> WizardStep.ZNS_IMPORT
+        WizardStep.VERANSTALTER_SELECTION -> WizardStep.ZNS_CHECK
-        WizardStep.TYPE_SELECTION -> WizardStep.META_DATA
+        WizardStep.ANSPRECHPERSON_MAPPING -> WizardStep.VERANSTALTER_SELECTION
+        WizardStep.META_DATA -> WizardStep.ANSPRECHPERSON_MAPPING
+        WizardStep.TURNIER_ANLAGE -> WizardStep.META_DATA
+        WizardStep.SUMMARY -> WizardStep.TURNIER_ANLAGE
       }
     )
   }
 
-  fun updateMetaData(name: String, ort: String, start: LocalDate?, end: LocalDate?) {
+  fun setVeranstalter(id: Uuid, nummer: String, name: String, standardOrt: String, logo: String?) {
-    state = state.copy(name = name, ort = ort, startDatum = start, endDatum = end)
+    state = state.copy(
+      veranstalterId = id,
+      veranstalterVereinsNummer = nummer,
+      veranstalterName = name,
+      ort = standardOrt,
+      logoUrl = logo
+    )
   }
 
-  fun setVeranstalter(id: Uuid) {
+  fun setAnsprechperson(satznummer: String, name: String) {
-    state = state.copy(veranstalterId = id)
+    state = state.copy(ansprechpersonSatznummer = satznummer, ansprechpersonName = name)
+  }
+
+  fun updateMetaData(name: String, ort: String, start: LocalDate?, end: LocalDate?, logo: String?) {
+    state = state.copy(name = name, ort = ort, startDatum = start, endDatum = end, logoUrl = logo)
   }
 
   fun saveVeranstaltung() {
@@ -99,7 +136,7 @@ class VeranstaltungWizardViewModel(
         }
 
         if (response.status == HttpStatusCode.Created) {
-          // Hier müsste die ID aus dem Response gelesen werden, falls benötigt
+          // Hier müsste die ID aus der Response gelesen werden, falls benötigt
           state = state.copy(isSaving = false)
           nextStep()
         } else {

frontend/shells/meldestelle-desktop/src/jvmMain/kotlin/at/mocode/frontend/shell/desktop/screens/layout/components/ContentArea.kt

@@ -45,7 +45,6 @@ import at.mocode.frontend.shell.desktop.screens.veranstaltung.wizards.TurnierWiz
 import at.mocode.frontend.shell.desktop.screens.veranstaltung.wizards.VeranstalterAnlegenWizard
 import at.mocode.veranstaltung.feature.presentation.AdminUebersichtScreen
 import at.mocode.veranstaltung.feature.presentation.VeranstaltungDetailScreen
-import at.mocode.veranstaltung.feature.presentation.VeranstaltungNeuScreen
 import at.mocode.veranstaltung.feature.presentation.VeranstaltungenScreen
 import org.koin.compose.koinInject
 import org.koin.compose.viewmodel.koinViewModel
@@ -235,9 +234,11 @@ fun DesktopContentArea(
     }
 
     is AppScreen.VeranstaltungNeu -> {
-      VeranstaltungNeuScreen(
+      val viewModel: at.mocode.veranstaltung.feature.presentation.VeranstaltungWizardViewModel = koinViewModel()
+      at.mocode.veranstaltung.feature.presentation.VeranstaltungWizardScreen(
+        viewModel = viewModel,
         onBack = onBack,
-        onSave = { onBack() }
+        onFinish = { onBack() }
       )
     }