Jump to Document screen when there's a current scan on startup

Author: pynicolas

app/src/main/java/org/fairscan/app/MainViewModel.kt

@@ -73,10 +73,6 @@ class MainViewModel(
     val liveAnalysisState: StateFlow<LiveAnalysisState> = _liveAnalysisState.asStateFlow()
     private var lastSuccessfulLiveAnalysisState: LiveAnalysisState? = null
 
-    private val _navigationState = MutableStateFlow(NavigationState.initial())
-    val currentScreen: StateFlow<Screen> = _navigationState.map { it.current }
-        .stateIn(viewModelScope, SharingStarted.Eagerly, _navigationState.value.current)
-
     private val _pageIds = MutableStateFlow(imageRepository.imageIds())
     val documentUiModel: StateFlow<DocumentUiModel> =
         _pageIds.map { ids ->
@@ -87,9 +83,18 @@ class MainViewModel(
         }.stateIn(
             scope = viewModelScope,
             started = SharingStarted.Eagerly,
-            initialValue = DocumentUiModel(emptyList(), ::getBitmap)
+            initialValue = DocumentUiModel(_pageIds.value, ::getBitmap)
         )
 
+    private val _navigationState = MutableStateFlow(value =
+        if (_pageIds.value.isEmpty())
+            NavigationState.initial()
+        else
+            NavigationState.initial().navigateTo(Screen.Main.Document())
+    )
+    val currentScreen: StateFlow<Screen> = _navigationState.map { it.current }
+        .stateIn(viewModelScope, SharingStarted.Eagerly, _navigationState.value.current)
+
     private val _captureState = MutableStateFlow<CaptureState>(CaptureState.Idle)
     val captureState: StateFlow<CaptureState> = _captureState