feat: 「计划」未登录自动跳转「我的」

feature/plan/src/main/kotlin/com/mingyuan/android_client/feature/plan/PlanScreen.kt

@@ -22,6 +22,7 @@ import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
 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
@@ -39,6 +40,7 @@ import com.mingyuan.android_client.core.designsystem.component.AmberProgressBar
 import com.mingyuan.android_client.core.designsystem.component.Avatar
 import com.mingyuan.android_client.core.designsystem.component.EmptyState
 import com.mingyuan.android_client.core.designsystem.component.ErrorState
+import com.mingyuan.android_client.core.designsystem.component.LoggedOutState
 import com.mingyuan.android_client.core.designsystem.component.MingyuanButton
 import com.mingyuan.android_client.core.designsystem.component.SectionCard
 import com.mingyuan.android_client.core.designsystem.component.SegmentedControl
@@ -66,12 +68,24 @@ const val PLAN_ROUTE = "plan"
 @Composable
 fun PlanScreen(
     onNavigateToPlanSubmit: (PlanType, String) -> Unit,
+    onNavigateToProfile: () -> Unit,
     modifier: Modifier = Modifier,
     viewModel: PlanViewModel = hiltViewModel(),
 ) {
     val uiState by viewModel.uiState.collectAsStateWithLifecycle()
     val selectedType by viewModel.selectedType.collectAsStateWithLifecycle()
 
+    LaunchedEffect(uiState) {
+        if (uiState is PlanUiState.LoggedOut) {
+            onNavigateToProfile()
+        }
+    }
+
+    if (uiState is PlanUiState.LoggedOut) {
+        LoggedOutState(modifier = modifier.fillMaxSize().background(PlanBackground))
+        return
+    }
+
     Column(modifier = modifier.fillMaxSize().background(PlanBackground)) {
         Box(Modifier.fillMaxWidth().padding(16.dp)) {
             SegmentedControl(
@@ -94,6 +108,8 @@ fun PlanScreen(
                 selectedType = selectedType,
                 onNavigateToPlanSubmit = onNavigateToPlanSubmit,
             )
+
+            is PlanUiState.LoggedOut -> Unit // handled above
         }
     }
 }

feature/plan/src/main/kotlin/com/mingyuan/android_client/feature/plan/PlanViewModel.kt

@@ -3,6 +3,7 @@ package com.mingyuan.android_client.feature.plan
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.mingyuan.android_client.core.domain.repository.PlanRepository
+import com.mingyuan.android_client.core.domain.repository.SessionRepository
 import com.mingyuan.android_client.core.model.PlanRecord
 import com.mingyuan.android_client.core.model.PlanType
 import dagger.hilt.android.lifecycle.HiltViewModel
@@ -11,7 +12,9 @@ import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.catch
+import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.onStart
 import kotlinx.coroutines.flow.stateIn
@@ -20,27 +23,36 @@ import javax.inject.Inject
 sealed interface PlanUiState {
     data object Loading : PlanUiState
     data class Success(val record: PlanRecord) : PlanUiState
+    data object LoggedOut : PlanUiState
     data class Error(val message: String) : PlanUiState
 }
 
 @HiltViewModel
 class PlanViewModel @Inject constructor(
     private val planRepository: PlanRepository,
+    private val sessionRepository: SessionRepository,
 ) : ViewModel() {
 
     private val _selectedType = MutableStateFlow(PlanType.WEEKLY)
     val selectedType: StateFlow<PlanType> = _selectedType.asStateFlow()
 
-    val uiState: StateFlow<PlanUiState> = _selectedType
-        .flatMapLatest { type -> planRepository.observePlan(type) }
-        .map<PlanRecord, PlanUiState>(PlanUiState::Success)
-        .onStart { emit(PlanUiState.Loading) }
-        .catch { emit(PlanUiState.Error(it.message ?: "加载失败，请稍后再试")) }
-        .stateIn(
-            scope = viewModelScope,
-            started = SharingStarted.WhileSubscribed(5_000),
-            initialValue = PlanUiState.Loading,
-        )
+    val uiState: StateFlow<PlanUiState> =
+        combine(sessionRepository.isLoggedIn, _selectedType) { loggedIn, type -> loggedIn to type }
+            .flatMapLatest { (loggedIn, type) ->
+                if (loggedIn) {
+                    planRepository.observePlan(type)
+                        .map<PlanRecord, PlanUiState>(PlanUiState::Success)
+                        .onStart { emit(PlanUiState.Loading) }
+                } else {
+                    flowOf(PlanUiState.LoggedOut)
+                }
+            }
+            .catch { emit(PlanUiState.Error(it.message ?: "加载失败，请稍后再试")) }
+            .stateIn(
+                scope = viewModelScope,
+                started = SharingStarted.Eagerly,
+                initialValue = PlanUiState.Loading,
+            )
 
     fun selectType(type: PlanType) {
         _selectedType.value = type