Camera works, provided you don't go back too rapidly

SousChefAI/Services/CameraManager.swift

@@ -26,9 +26,11 @@ final class CameraManager: NSObject, ObservableObject {
     private let continuationQueue = DispatchQueue(label: "com.souschef.continuation")
     
     private var isConfigured = false
+    private var cachedPreviewLayer: AVCaptureVideoPreviewLayer?
     
     nonisolated override init() {
         super.init()
+        print("🎥 CameraManager.init() - Instance created at \(Date())")
     }
     
     // MARK: - Authorization
@@ -53,8 +55,12 @@ final class CameraManager: NSObject, ObservableObject {
     // MARK: - Session Setup
     
     func setupSession() async throws {
+        print("🎥 CameraManager.setupSession() - STARTED at \(Date())")
         // Only configure once
-        guard !isConfigured else { return }
+        guard !isConfigured else {
+            print("🎥 CameraManager.setupSession() - Already configured, returning")
+            return
+        }
         
         // Ensure authorization is checked first
         await checkAuthorization()
@@ -63,19 +69,29 @@ final class CameraManager: NSObject, ObservableObject {
             throw CameraError.notAuthorized
         }
         
+        print("🎥 CameraManager.setupSession() - Calling beginConfiguration()")
         captureSession.beginConfiguration()
         
         // Set session preset
         captureSession.sessionPreset = .high
+        print("🎥 CameraManager.setupSession() - Set preset to .high")
         
         // Add video input
+        print("🎥 CameraManager.setupSession() - About to get video device (LINE 72)")
+        
+        #if targetEnvironment(simulator)
+        print("🎥 CameraManager.setupSession() - ⚠️ RUNNING ON SIMULATOR - Camera may not work properly")
+        #endif
+        
         guard let videoDevice = AVCaptureDevice.default(.builtInWideAngleCamera, for: .video, position: .back),
               let videoInput = try? AVCaptureDeviceInput(device: videoDevice),
               captureSession.canAddInput(videoInput) else {
+            print("🎥 CameraManager.setupSession() - ❌ FAILED to get video device or add input")
             captureSession.commitConfiguration()
             throw CameraError.setupFailed
         }
         
+        print("🎥 CameraManager.setupSession() - ✅ Successfully got video device and input")
         captureSession.addInput(videoInput)
         
         // Add video output
@@ -96,6 +112,7 @@ final class CameraManager: NSObject, ObservableObject {
         
         captureSession.commitConfiguration()
         isConfigured = true
+        print("🎥 CameraManager.setupSession() - ✅ COMPLETED successfully at \(Date())")
     }
     
     // MARK: - Session Control
@@ -151,9 +168,26 @@ final class CameraManager: NSObject, ObservableObject {
     
     // MARK: - Preview Layer
     
-    func previewLayer() -> AVCaptureVideoPreviewLayer {
+    func previewLayer() -> AVCaptureVideoPreviewLayer? {
+        print("🎥 CameraManager.previewLayer() - ⚠️ CALLED at \(Date()) - isConfigured: \(isConfigured)")
+        
+        // Only create preview layer after session is configured
+        if !isConfigured {
+            print("🎥 CameraManager.previewLayer() - ❌ Session not configured yet, returning nil")
+            return nil
+        }
+        
+        // Return cached layer if available
+        if let cached = cachedPreviewLayer {
+            print("🎥 CameraManager.previewLayer() - ✅ Returning cached preview layer")
+            return cached
+        }
+        
+        // Create and cache new preview layer
+        print("🎥 CameraManager.previewLayer() - ✅ Creating new preview layer")
         let layer = AVCaptureVideoPreviewLayer(session: captureSession)
         layer.videoGravity = .resizeAspectFill
+        cachedPreviewLayer = layer
         return layer
     }
 }

SousChefAI/ViewModels/CookingModeViewModel.swift

@@ -71,7 +71,7 @@ final class CookingModeViewModel: ObservableObject {
         cameraManager.stopSession()
     }
     
-    func getPreviewLayer() -> AVCaptureVideoPreviewLayer {
+    func getPreviewLayer() -> AVCaptureVideoPreviewLayer? {
         cameraManager.previewLayer()
     }
     

SousChefAI/ViewModels/ScannerViewModel.swift

@@ -25,6 +25,7 @@ final class ScannerViewModel: ObservableObject {
     
     nonisolated init(visionService: VisionService = ARVisionService(),
                      cameraManager: CameraManager = CameraManager()) {
+        print("📱 ScannerViewModel.init() - Creating ViewModel at \(Date())")
         self.visionService = visionService
         self.cameraManager = cameraManager
     }
@@ -32,9 +33,12 @@ final class ScannerViewModel: ObservableObject {
     // MARK: - Camera Management
     
     func setupCamera() async {
+        print("📱 ScannerViewModel.setupCamera() - STARTED at \(Date())")
         do {
             try await cameraManager.setupSession()
+            print("📱 ScannerViewModel.setupCamera() - ✅ SUCCESS at \(Date())")
         } catch {
+            print("📱 ScannerViewModel.setupCamera() - ❌ ERROR: \(error)")
             self.error = error
         }
     }
@@ -47,8 +51,9 @@ final class ScannerViewModel: ObservableObject {
         cameraManager.stopSession()
     }
     
-    func getPreviewLayer() -> AVCaptureVideoPreviewLayer {
+    func getPreviewLayer() -> AVCaptureVideoPreviewLayer? {
-        cameraManager.previewLayer()
+        print("📱 ScannerViewModel.getPreviewLayer() - ⚠️ REQUESTING preview layer at \(Date())")
+        return cameraManager.previewLayer()
     }
     
     // MARK: - Scanning

SousChefAI/Views/CookingModeView.swift

@@ -12,6 +12,7 @@ struct CookingModeView: View {
     @Environment(\.dismiss) private var dismiss
     @StateObject private var viewModel: CookingModeViewModel
     @State private var showingAllSteps = false
+    @State private var previewLayer: AVCaptureVideoPreviewLayer?
     
     init(recipe: Recipe) {
         _viewModel = StateObject(wrappedValue: CookingModeViewModel(recipe: recipe))
@@ -21,8 +22,8 @@ struct CookingModeView: View {
         NavigationStack {
             ZStack {
                 // Camera preview background
-                if viewModel.isMonitoring {
+                if viewModel.isMonitoring, let previewLayer = previewLayer {
-                    CameraPreviewView(previewLayer: viewModel.getPreviewLayer())
+                    CameraPreviewView(previewLayer: previewLayer)
                         .ignoresSafeArea()
                         .opacity(0.3)
                 }
@@ -69,6 +70,7 @@ struct CookingModeView: View {
             }
             .task {
                 await viewModel.setupCamera()
+                previewLayer = viewModel.getPreviewLayer()
                 viewModel.startCamera()
             }
             .onDisappear {

SousChefAI/Views/ScannerView.swift

@@ -16,9 +16,15 @@ struct ScannerView: View {
     @State private var detectedPlanes = 0
     @State private var lastRaycastResult = ""
     @State private var showARView = false
+    @State private var previewLayer: AVCaptureVideoPreviewLayer?
+    
+    init() {
+        print("🔵 ScannerView.init() - View initialized at \(Date())")
+    }
     
     var body: some View {
-        NavigationStack {
+        print("🔵 ScannerView.body - Body evaluated at \(Date()), showARView: \(showARView)")
+        return NavigationStack {
             ZStack {
                 // AR camera preview or regular camera
                 if showARView {
@@ -28,8 +34,17 @@ struct ScannerView: View {
                     )
                     .ignoresSafeArea()
                 } else {
-                    CameraPreviewView(previewLayer: viewModel.getPreviewLayer())
+                    if let previewLayer = previewLayer {
+                        CameraPreviewView(previewLayer: previewLayer)
                             .ignoresSafeArea()
+                    } else {
+                        Color.black
+                            .ignoresSafeArea()
+                            .overlay {
+                                ProgressView("Initializing camera...")
+                                    .foregroundStyle(.white)
+                            }
+                    }
                 }
                 
                 // Overlay UI
@@ -68,12 +83,19 @@ struct ScannerView: View {
                 }
             }
             .task {
+                print("🔵 ScannerView.task - Task started at \(Date())")
                 if !showARView {
+                    print("🔵 ScannerView.task - Calling setupCamera()")
                     await viewModel.setupCamera()
+                    print("🔵 ScannerView.task - Getting preview layer after setup")
+                    previewLayer = viewModel.getPreviewLayer()
+                    print("🔵 ScannerView.task - Preview layer set: \(previewLayer != nil)")
+                    print("🔵 ScannerView.task - Calling startCamera()")
                     viewModel.startCamera()
                 }
             }
             .onDisappear {
+                print("🔵 ScannerView.onDisappear - Cleaning up at \(Date())")
                 viewModel.cleanup()
             }
             .alert("Camera Error", isPresented: .constant(viewModel.error != nil)) {
@@ -174,7 +196,11 @@ struct ScannerView: View {
                     withAnimation {
                         showARView.toggle()
                         if !showARView {
+                            Task {
+                                await viewModel.setupCamera()
+                                previewLayer = viewModel.getPreviewLayer()
                                 viewModel.startCamera()
+                            }
                         } else {
                             viewModel.stopCamera()
                         }
@@ -246,10 +272,12 @@ struct CameraPreviewView: UIViewRepresentable {
     let previewLayer: AVCaptureVideoPreviewLayer
     
     func makeUIView(context: Context) -> UIView {
+        print("🟢 CameraPreviewView.makeUIView() - Creating preview view at \(Date())")
         let view = UIView(frame: .zero)
         view.backgroundColor = .black
         previewLayer.frame = view.bounds
         view.layer.addSublayer(previewLayer)
+        print("🟢 CameraPreviewView.makeUIView() - Preview layer added to view")
         return view
     }