From a55650bc40999d1bda3c866f2266283dd3a4a097 Mon Sep 17 00:00:00 2001
From: edde746 <86283021+edde746@users.noreply.github.com>
Date: Tue, 14 Apr 2026 06:53:51 +0200
Subject: [PATCH] fix: skip QR scanner on devices without cameras

---
 android/app/src/main/AndroidManifest.xml      |  3 ++
 .../kotlin/com/edde746/plezy/MainActivity.kt  |  3 ++
 .../companion_remote/pairing_screen.dart      | 36 +++++++++++++++----
 3 files changed, 35 insertions(+), 7 deletions(-)

diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index a26ccc5a..8fefa56f 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -23,6 +23,9 @@
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" tools:node="remove" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" tools:node="remove" />
 
+    <!-- Camera not required (QR scanning is optional, some devices lack cameras) -->
+    <uses-feature android:name="android.hardware.camera.any" android:required="false" />
+
     <!-- Android TV support (not required, but allow detection) -->
     <uses-feature android:name="android.software.leanback" android:required="false" />
     <!-- Android TV Watch Next integration -->
diff --git a/android/app/src/main/kotlin/com/edde746/plezy/MainActivity.kt b/android/app/src/main/kotlin/com/edde746/plezy/MainActivity.kt
index 1ba23782..d2a92aad 100644
--- a/android/app/src/main/kotlin/com/edde746/plezy/MainActivity.kt
+++ b/android/app/src/main/kotlin/com/edde746/plezy/MainActivity.kt
@@ -253,6 +253,9 @@ class MainActivity : FlutterActivity() {
         MethodChannel(flutterEngine.dartExecutor.binaryMessenger, THEME_CHANNEL).setMethodCallHandler { call, result ->
             when (call.method) {
                 "getRenderer" -> result.success(if (usingSkia) "Skia" else "Impeller")
+                "hasCamera" -> result.success(
+                    packageManager.hasSystemFeature(android.content.pm.PackageManager.FEATURE_CAMERA_ANY)
+                )
                 "setSplashTheme" -> {
                     val mode = call.argument<String>("mode")
 
diff --git a/lib/screens/companion_remote/pairing_screen.dart b/lib/screens/companion_remote/pairing_screen.dart
index 2110980b..23855234 100644
--- a/lib/screens/companion_remote/pairing_screen.dart
+++ b/lib/screens/companion_remote/pairing_screen.dart
@@ -28,12 +28,34 @@ class _PairingScreenState extends State<PairingScreen> {
   // QR scanner state
   MobileScannerController? _scannerController;
   String? _lastScannedCode;
+  bool _hasCamera = false;
 
-  bool get _isMobile => Platform.isAndroid || Platform.isIOS;
+  bool get _canScan => (Platform.isAndroid || Platform.isIOS) && _hasCamera;
 
-  // Tab indices: mobile gets Scan (0) + Manual (1), desktop gets Manual (0)
-  int get _scanTabIndex => _isMobile ? 0 : -1;
-  int get _manualTabIndex => _isMobile ? 1 : 0;
+  // Tab indices: scannable gets Scan (0) + Manual (1), otherwise Manual (0)
+  int get _scanTabIndex => _canScan ? 0 : -1;
+  int get _manualTabIndex => _canScan ? 1 : 0;
+
+  @override
+  void initState() {
+    super.initState();
+    _checkCamera();
+  }
+
+  Future<void> _checkCamera() async {
+    if (Platform.isIOS) {
+      setState(() => _hasCamera = true);
+      return;
+    }
+    if (!Platform.isAndroid) return;
+    try {
+      const channel = MethodChannel('com.plezy/theme');
+      final result = await channel.invokeMethod<bool>('hasCamera');
+      if (mounted) setState(() => _hasCamera = result ?? false);
+    } catch (e) {
+      debugPrint('Camera check failed: $e');
+    }
+  }
 
   @override
   void dispose() {
@@ -158,7 +180,7 @@ class _PairingScreenState extends State<PairingScreen> {
       ),
       body: Column(
         children: [
-          if (_isMobile)
+          if (_canScan)
             SegmentedButton<int>(
               segments: [
                 ButtonSegment(
@@ -186,7 +208,7 @@ class _PairingScreenState extends State<PairingScreen> {
   }
 
   Widget _buildTabContent() {
-    if (_selectedTab == _scanTabIndex && _isMobile) return _buildScanTab();
+    if (_selectedTab == _scanTabIndex && _canScan) return _buildScanTab();
     return _buildManualEntryTab();
   }
 
@@ -416,7 +438,7 @@ class _PairingScreenState extends State<PairingScreen> {
             Text(t.companionRemote.pairing.tips, style: Theme.of(context).textTheme.titleMedium),
             const SizedBox(height: 8),
             _buildTipCard(context, Icons.computer, t.companionRemote.pairing.tipDesktop),
-            if (_isMobile) ...[
+            if (_canScan) ...[
               const SizedBox(height: 8),
               _buildTipCard(context, Icons.qr_code, t.companionRemote.pairing.tipScan),
             ],