check update

.gitea/workflows/release.yml

@@ -77,6 +77,9 @@ jobs:
   build-android:
     runs-on: ubuntu-latest
     needs: get-version
+    env:
+      ANDROID_HOME: /opt/android-sdk-linux
+      ANDROID_SDK_ROOT: /opt/android-sdk-linux
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -90,13 +93,14 @@ jobs:
       - name: Setup Android SDK
         uses: android-actions/setup-android@v3
         with:
-          api-level: 34
-          build-tools: 34.0.0
-          cmake: 3.22.1
-          ndk: 25.1.8937393
+          cmdline-tools-version: 11076708
           
-      - name: Accept Android SDK licenses
-        run: yes | $ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager --licenses || true
+      - name: Install Android SDK components
+        run: |
+          echo "Installing Android SDK components..."
+          $ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager --install "platform-tools" "platforms;android-34" "build-tools;34.0.0"
+          echo "Android SDK setup complete"
+          export PATH=$PATH:$ANDROID_HOME/platform-tools:$ANDROID_HOME/cmdline-tools/latest/bin
           
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
@@ -105,8 +109,14 @@ jobs:
           channel: 'stable'
           cache: true
 
-      - name: Accept Flutter Android licenses
-        run: flutter doctor --android-licenses || true
+      - name: Accept Android licenses
+        run: yes | flutter doctor --android-licenses
+
+      - name: Verify Android SDK
+        run: |
+          echo "ANDROID_HOME: $ANDROID_HOME"
+          echo "ANDROID_SDK_ROOT: $ANDROID_SDK_ROOT"
+          ls -la $ANDROID_HOME || echo "ANDROID_HOME not found"
           
       - name: Flutter doctor
         run: flutter doctor -v

flutter_app/UPDATE_SYSTEM.md

@@ -0,0 +1,61 @@
+# Update System
+
+The rmtPocketWatcher Flutter app includes an automatic update checking system that monitors the Gitea repository for new releases.
+
+## How It Works
+
+1. **Automatic Checks**: The app checks for updates every 4 hours automatically
+2. **Manual Checks**: Users can manually check for updates using the refresh button in the title bar
+3. **Version Comparison**: Compares current app version (from pubspec.yaml) with latest release tag
+4. **Platform Detection**: Automatically detects the appropriate download asset for the current platform
+
+## Components
+
+### UpdateService
+- Fetches releases from Gitea RSS feed: `https://git.hudsonriggs.systems/LambdaBankingConglomerate/rmtPocketWatcher/releases.rss`
+- Parses XML/RSS format to extract release information
+- Compares version numbers and generates platform-specific download URLs
+
+### UpdateProvider
+- Manages update checking state and notifications
+- Stores last check time and dismissed updates in SharedPreferences
+- Provides reactive state for UI components
+
+### UpdateNotificationBanner
+- Shows a dismissible banner when updates are available
+- Displays version information and release details
+- Provides direct links to download or view release page
+
+## Configuration
+
+The system is configured to work with your Gitea repository structure:
+- Repository: `LambdaBankingConglomerate/rmtPocketWatcher`
+- RSS Feed: `https://git.hudsonriggs.systems/LambdaBankingConglomerate/rmtPocketWatcher/releases.rss`
+- Release tags should follow semantic versioning (e.g., `v1.0.0`, `v1.2.3`)
+- Expected asset naming convention:
+  - Windows: `rmtPocketWatcher-windows-x64.exe`, `rmtPocketWatcher-windows-x64.msi`
+  - macOS: `rmtPocketWatcher-macos.dmg`
+  - Linux: `rmtPocketWatcher-linux.appimage`
+  - Android: `rmtPocketWatcher-android.apk`
+
+## Usage
+
+The update system is automatically initialized when the app starts:
+
+```dart
+// In HomeScreen initState
+context.read<UpdateProvider>().initialize();
+context.read<UpdateProvider>().startPeriodicChecks();
+```
+
+Users will see:
+1. A notification banner when updates are available
+2. An update icon in the title bar (desktop)
+3. A detailed dialog with release notes and download options
+
+## Privacy & Security
+
+- Only checks public release information
+- No personal data is transmitted
+- Downloads are handled by the system browser/app store
+- Users control when to update (no forced updates)

flutter_app/lib/main.dart

@@ -4,6 +4,7 @@ import 'package:provider/provider.dart';
 import 'package:flutter_dotenv/flutter_dotenv.dart';
 import 'package:window_manager/window_manager.dart';
 import 'providers/price_provider.dart';
+import 'providers/update_provider.dart';
 import 'screens/home_screen.dart';
 import 'services/notification_service.dart';
 import 'widgets/loading_screen.dart';
@@ -61,8 +62,11 @@ class _MyAppState extends State<MyApp> {
 
   @override
   Widget build(BuildContext context) {
-    return ChangeNotifierProvider(
-      create: (_) => PriceProvider(),
+    return MultiProvider(
+      providers: [
+        ChangeNotifierProvider(create: (_) => PriceProvider()),
+        ChangeNotifierProvider(create: (_) => UpdateProvider()),
+      ],
       child: MaterialApp(
         title: 'rmtPocketWatcher',
         debugShowCheckedModeBanner: false,

flutter_app/lib/providers/update_provider.dart

@@ -0,0 +1,95 @@
+import 'package:flutter/foundation.dart';
+import '../services/update_service.dart';
+import '../services/storage_service.dart';
+
+class UpdateProvider extends ChangeNotifier {
+  final UpdateService _updateService = UpdateService();
+  final StorageService _storageService = StorageService();
+  
+  UpdateInfo? _availableUpdate;
+  bool _isChecking = false;
+  DateTime? _lastChecked;
+  bool _updateDismissed = false;
+  
+  UpdateInfo? get availableUpdate => _availableUpdate;
+  bool get isChecking => _isChecking;
+  DateTime? get lastChecked => _lastChecked;
+  bool get hasUpdate => _availableUpdate != null && !_updateDismissed;
+  
+  /// Check for updates manually
+  Future<void> checkForUpdates({bool force = false}) async {
+    if (_isChecking) return;
+    
+    // Don't check too frequently unless forced
+    if (!force && _lastChecked != null) {
+      final timeSinceLastCheck = DateTime.now().difference(_lastChecked!);
+      if (timeSinceLastCheck.inHours < 1) {
+        if (kDebugMode) {
+          print('Skipping update check - last checked ${timeSinceLastCheck.inMinutes} minutes ago');
+        }
+        return;
+      }
+    }
+    
+    _isChecking = true;
+    notifyListeners();
+    
+    try {
+      final updateInfo = await _updateService.checkForUpdates();
+      _availableUpdate = updateInfo;
+      _lastChecked = DateTime.now();
+      _updateDismissed = false;
+      
+      // Save last check time
+      await _storageService.setString('last_update_check', _lastChecked!.toIso8601String());
+      
+      if (updateInfo != null) {
+        if (kDebugMode) {
+          print('Update available: ${updateInfo.latestVersion}');
+        }
+        
+        // Check if this version was already dismissed
+        final dismissedVersion = await _storageService.getString('dismissed_update_version');
+        if (dismissedVersion == updateInfo.latestVersion) {
+          _updateDismissed = true;
+        }
+      }
+    } catch (e) {
+      if (kDebugMode) {
+        print('Error checking for updates: $e');
+      }
+    } finally {
+      _isChecking = false;
+      notifyListeners();
+    }
+  }
+  
+  /// Dismiss the current update notification
+  Future<void> dismissUpdate() async {
+    if (_availableUpdate != null) {
+      _updateDismissed = true;
+      await _storageService.setString('dismissed_update_version', _availableUpdate!.latestVersion);
+      notifyListeners();
+    }
+  }
+  
+  /// Initialize the provider and load saved state
+  Future<void> initialize() async {
+    // Load last check time
+    final lastCheckString = await _storageService.getString('last_update_check');
+    if (lastCheckString != null) {
+      _lastChecked = DateTime.tryParse(lastCheckString);
+    }
+    
+    // Check for updates on startup (but don't force it)
+    await checkForUpdates();
+  }
+  
+  /// Check for updates automatically in the background
+  void startPeriodicChecks() {
+    // Check every 4 hours
+    Stream.periodic(const Duration(hours: 4)).listen((_) {
+      checkForUpdates();
+    });
+  }
+}

flutter_app/lib/screens/home_screen.dart

@@ -2,13 +2,30 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../providers/price_provider.dart';
+import '../providers/update_provider.dart';
 import '../widgets/price_chart.dart';
 import '../widgets/alerts_panel.dart';
 import '../widgets/vendor_table.dart';
+import '../widgets/update_notification.dart';
 
-class HomeScreen extends StatelessWidget {
+class HomeScreen extends StatefulWidget {
   const HomeScreen({super.key});
 
+  @override
+  State<HomeScreen> createState() => _HomeScreenState();
+}
+
+class _HomeScreenState extends State<HomeScreen> {
+  @override
+  void initState() {
+    super.initState();
+    // Initialize update provider
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      context.read<UpdateProvider>().initialize();
+      context.read<UpdateProvider>().startPeriodicChecks();
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -42,6 +59,33 @@ class HomeScreen extends StatelessWidget {
                     ),
                   ),
                   const SizedBox(width: 16),
+                  // Update check button
+                  Consumer<UpdateProvider>(
+                    builder: (context, updateProvider, child) {
+                      return IconButton(
+                        icon: updateProvider.isChecking
+                            ? const SizedBox(
+                                width: 12,
+                                height: 12,
+                                child: CircularProgressIndicator(
+                                  strokeWidth: 2,
+                                  color: Color(0xFF50E3C2),
+                                ),
+                              )
+                            : Icon(
+                                updateProvider.hasUpdate ? Icons.system_update : Icons.refresh,
+                                color: updateProvider.hasUpdate ? const Color(0xFF50E3C2) : Colors.white,
+                                size: 16,
+                              ),
+                        onPressed: updateProvider.isChecking
+                            ? null
+                            : () => updateProvider.checkForUpdates(force: true),
+                        tooltip: updateProvider.hasUpdate
+                            ? 'Update available'
+                            : 'Check for updates',
+                      );
+                    },
+                  ),
                   IconButton(
                     icon: const Icon(Icons.minimize, color: Colors.white, size: 16),
                     onPressed: () {
@@ -64,6 +108,8 @@ class HomeScreen extends StatelessWidget {
               child: Column(
                 crossAxisAlignment: CrossAxisAlignment.stretch,
                 children: [
+                  // Update notification banner
+                  const UpdateNotificationBanner(),
                   // Top stats row - Bloomberg style
                   Consumer<PriceProvider>(
                     builder: (context, provider, child) {

flutter_app/lib/services/storage_service.dart

@@ -51,4 +51,15 @@ class StorageService {
     final prefs = await SharedPreferences.getInstance();
     await prefs.setDouble(_customAuecKey, amount);
   }
+
+  // Generic string storage methods for update checking
+  Future<String?> getString(String key) async {
+    final prefs = await SharedPreferences.getInstance();
+    return prefs.getString(key);
+  }
+
+  Future<void> setString(String key, String value) async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setString(key, value);
+  }
 }

flutter_app/lib/services/update_service.dart

@@ -0,0 +1,255 @@
+import 'package:flutter/foundation.dart';
+import 'package:http/http.dart' as http;
+import 'package:package_info_plus/package_info_plus.dart';
+import 'package:xml/xml.dart';
+
+class UpdateService {
+  static const String _releasesRssUrl = 'https://git.hudsonriggs.systems/LambdaBankingConglomerate/rmtPocketWatcher/releases.rss';
+  
+  /// Check if an update is available by comparing current version with latest release
+  Future<UpdateInfo?> checkForUpdates() async {
+    try {
+      // Get current app version
+      final packageInfo = await PackageInfo.fromPlatform();
+      final currentVersion = packageInfo.version;
+      
+      if (kDebugMode) {
+        print('Current app version: $currentVersion');
+        print('Checking for updates at: $_releasesRssUrl');
+      }
+      
+      // Fetch latest release from Gitea RSS feed
+      final response = await http.get(
+        Uri.parse(_releasesRssUrl),
+        headers: {
+          'Accept': 'application/rss+xml, application/xml, text/xml',
+          'User-Agent': 'rmtPocketWatcher/$currentVersion',
+        },
+      );
+      
+      if (response.statusCode == 200) {
+        final document = XmlDocument.parse(response.body);
+        final items = document.findAllElements('item');
+        
+        if (items.isEmpty) {
+          if (kDebugMode) {
+            print('No releases found in RSS feed');
+          }
+          return null;
+        }
+        
+        // Get the latest release (first item in RSS feed)
+        final latestItem = items.first;
+        final title = latestItem.findElements('title').first.innerText;
+        final link = latestItem.findElements('link').first.innerText;
+        final description = latestItem.findElements('description').firstOrNull?.innerText ?? '';
+        final pubDate = latestItem.findElements('pubDate').first.innerText;
+        
+        // Extract version from title (assuming format like "v1.2.3" or "Release v1.2.3")
+        final versionMatch = RegExp(r'v?(\d+\.\d+\.\d+)').firstMatch(title);
+        if (versionMatch == null) {
+          if (kDebugMode) {
+            print('Could not extract version from title: $title');
+          }
+          return null;
+        }
+        
+        final latestVersion = versionMatch.group(1)!;
+        
+        if (kDebugMode) {
+          print('Latest release version: $latestVersion');
+          print('Release title: $title');
+        }
+        
+        // Compare versions
+        if (isNewerVersion(latestVersion, currentVersion)) {
+          return UpdateInfo(
+            currentVersion: currentVersion,
+            latestVersion: latestVersion,
+            releaseUrl: link,
+            releaseName: title,
+            releaseNotes: description,
+            publishedAt: _parseRssDate(pubDate),
+            assets: _generateAssetUrls(latestVersion), // Generate expected asset URLs
+          );
+        } else {
+          if (kDebugMode) {
+            print('App is up to date');
+          }
+          return null;
+        }
+      } else {
+        if (kDebugMode) {
+          print('Failed to fetch RSS feed: ${response.statusCode}');
+          print('Response: ${response.body}');
+        }
+        return null;
+      }
+    } catch (e) {
+      if (kDebugMode) {
+        print('Error checking for updates: $e');
+      }
+      return null;
+    }
+  }
+  
+  /// Extract version number from git tag (e.g., "v1.2.3" -> "1.2.3")
+  @visibleForTesting
+  String extractVersionFromTag(String tag) {
+    return tag.startsWith('v') ? tag.substring(1) : tag;
+  }
+  
+  /// Compare two version strings (e.g., "1.2.3" vs "1.2.2")
+  @visibleForTesting
+  bool isNewerVersion(String latest, String current) {
+    final latestParts = latest.split('.').map(int.parse).toList();
+    final currentParts = current.split('.').map(int.parse).toList();
+    
+    // Ensure both have same number of parts
+    while (latestParts.length < currentParts.length) {
+      latestParts.add(0);
+    }
+    while (currentParts.length < latestParts.length) {
+      currentParts.add(0);
+    }
+    
+    for (int i = 0; i < latestParts.length; i++) {
+      if (latestParts[i] > currentParts[i]) {
+        return true;
+      } else if (latestParts[i] < currentParts[i]) {
+        return false;
+      }
+    }
+    
+    return false; // Versions are equal
+  }
+  
+  /// Parse RSS date format to DateTime
+  DateTime _parseRssDate(String rssDate) {
+    try {
+      // RSS dates are typically in RFC 2822 format
+      // Example: "Mon, 02 Jan 2006 15:04:05 MST"
+      return DateTime.parse(rssDate);
+    } catch (e) {
+      if (kDebugMode) {
+        print('Failed to parse RSS date: $rssDate, error: $e');
+      }
+      return DateTime.now();
+    }
+  }
+  
+  /// Generate expected asset URLs based on version and platform
+  List<ReleaseAsset> _generateAssetUrls(String version) {
+    final baseUrl = 'https://git.hudsonriggs.systems/LambdaBankingConglomerate/rmtPocketWatcher/releases/download/v$version';
+    
+    return [
+      ReleaseAsset(
+        name: 'rmtPocketWatcher-windows-x64.exe',
+        downloadUrl: '$baseUrl/rmtPocketWatcher-windows-x64.exe',
+        size: 0, // Unknown size from RSS
+        contentType: 'application/octet-stream',
+      ),
+      ReleaseAsset(
+        name: 'rmtPocketWatcher-windows-x64.msi',
+        downloadUrl: '$baseUrl/rmtPocketWatcher-windows-x64.msi',
+        size: 0,
+        contentType: 'application/octet-stream',
+      ),
+      ReleaseAsset(
+        name: 'rmtPocketWatcher-macos.dmg',
+        downloadUrl: '$baseUrl/rmtPocketWatcher-macos.dmg',
+        size: 0,
+        contentType: 'application/octet-stream',
+      ),
+      ReleaseAsset(
+        name: 'rmtPocketWatcher-linux.appimage',
+        downloadUrl: '$baseUrl/rmtPocketWatcher-linux.appimage',
+        size: 0,
+        contentType: 'application/octet-stream',
+      ),
+      ReleaseAsset(
+        name: 'rmtPocketWatcher-android.apk',
+        downloadUrl: '$baseUrl/rmtPocketWatcher-android.apk',
+        size: 0,
+        contentType: 'application/vnd.android.package-archive',
+      ),
+    ];
+  }
+}
+
+class UpdateInfo {
+  final String currentVersion;
+  final String latestVersion;
+  final String releaseUrl;
+  final String releaseName;
+  final String releaseNotes;
+  final DateTime publishedAt;
+  final List<ReleaseAsset> assets;
+  
+  UpdateInfo({
+    required this.currentVersion,
+    required this.latestVersion,
+    required this.releaseUrl,
+    required this.releaseName,
+    required this.releaseNotes,
+    required this.publishedAt,
+    required this.assets,
+  });
+  
+  /// Get the appropriate download asset for the current platform
+  ReleaseAsset? getAssetForCurrentPlatform() {
+    if (kIsWeb) return null;
+    
+    String platformPattern;
+    switch (defaultTargetPlatform) {
+      case TargetPlatform.windows:
+        platformPattern = r'windows|win|\.exe$|\.msi$';
+        break;
+      case TargetPlatform.macOS:
+        platformPattern = r'macos|mac|darwin|\.dmg$|\.pkg$';
+        break;
+      case TargetPlatform.linux:
+        platformPattern = r'linux|\.deb$|\.rpm$|\.appimage$';
+        break;
+      case TargetPlatform.android:
+        platformPattern = r'android|\.apk$';
+        break;
+      case TargetPlatform.iOS:
+        platformPattern = r'ios|\.ipa$';
+        break;
+      default:
+        return null;
+    }
+    
+    final regex = RegExp(platformPattern, caseSensitive: false);
+    
+    for (final asset in assets) {
+      if (regex.hasMatch(asset.name)) {
+        return asset;
+      }
+    }
+    
+    return null;
+  }
+}
+
+class ReleaseAsset {
+  final String name;
+  final String downloadUrl;
+  final int size;
+  final String contentType;
+  
+  ReleaseAsset({
+    required this.name,
+    required this.downloadUrl,
+    required this.size,
+    required this.contentType,
+  });
+  
+  String get formattedSize {
+    if (size < 1024) return '${size}B';
+    if (size < 1024 * 1024) return '${(size / 1024).toStringAsFixed(1)}KB';
+    if (size < 1024 * 1024 * 1024) return '${(size / (1024 * 1024)).toStringAsFixed(1)}MB';
+    return '${(size / (1024 * 1024 * 1024)).toStringAsFixed(1)}GB';
+  }
+}

flutter_app/lib/widgets/update_notification.dart

@@ -0,0 +1,308 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:url_launcher/url_launcher.dart';
+import '../providers/update_provider.dart';
+import '../services/update_service.dart';
+
+class UpdateNotificationBanner extends StatelessWidget {
+  const UpdateNotificationBanner({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Consumer<UpdateProvider>(
+      builder: (context, updateProvider, child) {
+        if (!updateProvider.hasUpdate) {
+          return const SizedBox.shrink();
+        }
+
+        final update = updateProvider.availableUpdate!;
+        
+        return Container(
+          width: double.infinity,
+          padding: const EdgeInsets.all(12),
+          margin: const EdgeInsets.all(8),
+          decoration: BoxDecoration(
+            color: const Color(0xFF1A4B3A), // Dark green background
+            border: Border.all(color: const Color(0xFF50E3C2), width: 1),
+            borderRadius: BorderRadius.circular(8),
+          ),
+          child: Row(
+            children: [
+              const Icon(
+                Icons.system_update,
+                color: Color(0xFF50E3C2),
+                size: 20,
+              ),
+              const SizedBox(width: 12),
+              Expanded(
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    Text(
+                      'Update Available: v${update.latestVersion}',
+                      style: const TextStyle(
+                        color: Colors.white,
+                        fontWeight: FontWeight.bold,
+                        fontSize: 14,
+                      ),
+                    ),
+                    Text(
+                      'Current: v${update.currentVersion}',
+                      style: const TextStyle(
+                        color: Colors.white70,
+                        fontSize: 12,
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+              TextButton(
+                onPressed: () => _showUpdateDialog(context, update),
+                style: TextButton.styleFrom(
+                  foregroundColor: const Color(0xFF50E3C2),
+                ),
+                child: const Text('View'),
+              ),
+              IconButton(
+                onPressed: () => updateProvider.dismissUpdate(),
+                icon: const Icon(Icons.close, color: Colors.white70, size: 18),
+                tooltip: 'Dismiss',
+              ),
+            ],
+          ),
+        );
+      },
+    );
+  }
+
+  void _showUpdateDialog(BuildContext context, UpdateInfo update) {
+    showDialog(
+      context: context,
+      builder: (context) => UpdateDialog(update: update),
+    );
+  }
+}
+
+class UpdateDialog extends StatelessWidget {
+  final UpdateInfo update;
+
+  const UpdateDialog({super.key, required this.update});
+
+  @override
+  Widget build(BuildContext context) {
+    final asset = update.getAssetForCurrentPlatform();
+    
+    return AlertDialog(
+      backgroundColor: const Color(0xFF1A1F3A),
+      title: Row(
+        children: [
+          const Icon(Icons.system_update, color: Color(0xFF50E3C2)),
+          const SizedBox(width: 8),
+          Text(
+            'Update Available',
+            style: const TextStyle(color: Colors.white),
+          ),
+        ],
+      ),
+      content: SizedBox(
+        width: 500,
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            _buildVersionInfo(),
+            const SizedBox(height: 16),
+            _buildReleaseInfo(),
+            if (update.releaseNotes.isNotEmpty) ...[
+              const SizedBox(height: 16),
+              _buildReleaseNotes(),
+            ],
+            if (asset != null) ...[
+              const SizedBox(height: 16),
+              _buildDownloadInfo(asset),
+            ],
+          ],
+        ),
+      ),
+      actions: [
+        TextButton(
+          onPressed: () => Navigator.of(context).pop(),
+          child: const Text('Later', style: TextStyle(color: Colors.white70)),
+        ),
+        if (asset != null)
+          ElevatedButton(
+            onPressed: () => _downloadUpdate(asset.downloadUrl),
+            style: ElevatedButton.styleFrom(
+              backgroundColor: const Color(0xFF50E3C2),
+              foregroundColor: Colors.black,
+            ),
+            child: const Text('Download'),
+          ),
+        ElevatedButton(
+          onPressed: () => _openReleasePage(update.releaseUrl),
+          style: ElevatedButton.styleFrom(
+            backgroundColor: const Color(0xFF50E3C2),
+            foregroundColor: Colors.black,
+          ),
+          child: const Text('View Release'),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildVersionInfo() {
+    return Container(
+      padding: const EdgeInsets.all(12),
+      decoration: BoxDecoration(
+        color: const Color(0xFF0A0E27),
+        borderRadius: BorderRadius.circular(8),
+        border: Border.all(color: const Color(0xFF50E3C2).withValues(alpha: 0.3)),
+      ),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+        children: [
+          Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              const Text(
+                'Current Version',
+                style: TextStyle(color: Colors.white70, fontSize: 12),
+              ),
+              Text(
+                'v${update.currentVersion}',
+                style: const TextStyle(color: Colors.white, fontSize: 16, fontWeight: FontWeight.bold),
+              ),
+            ],
+          ),
+          const Icon(Icons.arrow_forward, color: Color(0xFF50E3C2)),
+          Column(
+            crossAxisAlignment: CrossAxisAlignment.end,
+            children: [
+              const Text(
+                'Latest Version',
+                style: TextStyle(color: Colors.white70, fontSize: 12),
+              ),
+              Text(
+                'v${update.latestVersion}',
+                style: const TextStyle(color: Color(0xFF50E3C2), fontSize: 16, fontWeight: FontWeight.bold),
+              ),
+            ],
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildReleaseInfo() {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          update.releaseName,
+          style: const TextStyle(
+            color: Colors.white,
+            fontSize: 16,
+            fontWeight: FontWeight.bold,
+          ),
+        ),
+        const SizedBox(height: 4),
+        Text(
+          'Released ${_formatDate(update.publishedAt)}',
+          style: const TextStyle(color: Colors.white70, fontSize: 12),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildReleaseNotes() {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        const Text(
+          'Release Notes',
+          style: TextStyle(
+            color: Colors.white,
+            fontSize: 14,
+            fontWeight: FontWeight.bold,
+          ),
+        ),
+        const SizedBox(height: 8),
+        Container(
+          width: double.infinity,
+          padding: const EdgeInsets.all(12),
+          decoration: BoxDecoration(
+            color: const Color(0xFF0A0E27),
+            borderRadius: BorderRadius.circular(8),
+            border: Border.all(color: const Color(0xFF50E3C2).withValues(alpha: 0.3)),
+          ),
+          child: Text(
+            update.releaseNotes,
+            style: const TextStyle(color: Colors.white70, fontSize: 12),
+            maxLines: 8,
+            overflow: TextOverflow.ellipsis,
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildDownloadInfo(ReleaseAsset asset) {
+    return Container(
+      padding: const EdgeInsets.all(12),
+      decoration: BoxDecoration(
+        color: const Color(0xFF0A0E27),
+        borderRadius: BorderRadius.circular(8),
+        border: Border.all(color: const Color(0xFF50E3C2).withValues(alpha: 0.3)),
+      ),
+      child: Row(
+        children: [
+          const Icon(Icons.download, color: Color(0xFF50E3C2), size: 20),
+          const SizedBox(width: 8),
+          Expanded(
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Text(
+                  asset.name,
+                  style: const TextStyle(color: Colors.white, fontSize: 14),
+                ),
+                Text(
+                  asset.formattedSize,
+                  style: const TextStyle(color: Colors.white70, fontSize: 12),
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  String _formatDate(DateTime date) {
+    final now = DateTime.now();
+    final difference = now.difference(date);
+    
+    if (difference.inDays > 0) {
+      return '${difference.inDays} day${difference.inDays == 1 ? '' : 's'} ago';
+    } else if (difference.inHours > 0) {
+      return '${difference.inHours} hour${difference.inHours == 1 ? '' : 's'} ago';
+    } else {
+      return '${difference.inMinutes} minute${difference.inMinutes == 1 ? '' : 's'} ago';
+    }
+  }
+
+  void _downloadUpdate(String downloadUrl) async {
+    final uri = Uri.parse(downloadUrl);
+    if (await canLaunchUrl(uri)) {
+      await launchUrl(uri);
+    }
+  }
+
+  void _openReleasePage(String releaseUrl) async {
+    final uri = Uri.parse(releaseUrl);
+    if (await canLaunchUrl(uri)) {
+      await launchUrl(uri);
+    }
+  }
+}

flutter_app/pubspec.lock

@@ -264,6 +264,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.0"
+  package_info_plus:
+    dependency: "direct main"
+    description:
+      name: package_info_plus
+      sha256: "16eee997588c60225bda0488b6dcfac69280a6b7a3cf02c741895dd370a02968"
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.3.1"
+  package_info_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: package_info_plus_platform_interface
+      sha256: "202a487f08836a592a6bd4f901ac69b3a8f146af552bbd14407b6b41e1c3f086"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.1"
   path:
     dependency: transitive
     description:
@@ -549,6 +565,70 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.0"
+  url_launcher:
+    dependency: "direct main"
+    description:
+      name: url_launcher
+      sha256: f6a7e5c4835bb4e3026a04793a4199ca2d14c739ec378fdfe23fc8075d0439f8
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.3.2"
+  url_launcher_android:
+    dependency: transitive
+    description:
+      name: url_launcher_android
+      sha256: "767344bf3063897b5cf0db830e94f904528e6dd50a6dfaf839f0abf509009611"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.3.28"
+  url_launcher_ios:
+    dependency: transitive
+    description:
+      name: url_launcher_ios
+      sha256: cfde38aa257dae62ffe79c87fab20165dfdf6988c1d31b58ebf59b9106062aad
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.3.6"
+  url_launcher_linux:
+    dependency: transitive
+    description:
+      name: url_launcher_linux
+      sha256: d5e14138b3bc193a0f63c10a53c94b91d399df0512b1f29b94a043db7482384a
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.2"
+  url_launcher_macos:
+    dependency: transitive
+    description:
+      name: url_launcher_macos
+      sha256: "368adf46f71ad3c21b8f06614adb38346f193f3a59ba8fe9a2fd74133070ba18"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.5"
+  url_launcher_platform_interface:
+    dependency: transitive
+    description:
+      name: url_launcher_platform_interface
+      sha256: "552f8a1e663569be95a8190206a38187b531910283c3e982193e4f2733f01029"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.2"
+  url_launcher_web:
+    dependency: transitive
+    description:
+      name: url_launcher_web
+      sha256: "4bd2b7b4dc4d4d0b94e5babfffbca8eac1a126c7f3d6ecbc1a11013faa3abba2"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  url_launcher_windows:
+    dependency: transitive
+    description:
+      name: url_launcher_windows
+      sha256: "712c70ab1b99744ff066053cbe3e80c73332b38d46e5e945c98689b2e66fc15f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.5"
   vector_math:
     dependency: transitive
     description:
@@ -581,6 +661,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.4.5"
+  win32:
+    dependency: transitive
+    description:
+      name: win32
+      sha256: d7cb55e04cd34096cd3a79b3330245f54cb96a370a1c27adb3c84b917de8b08e
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.15.0"
   window_manager:
     dependency: "direct main"
     description:
@@ -598,7 +686,7 @@ packages:
     source: hosted
     version: "1.1.0"
   xml:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: xml
       sha256: "971043b3a0d3da28727e40ed3e0b5d18b742fa5a68665cca88e74b7876d5e025"

flutter_app/pubspec.yaml

@@ -67,6 +67,15 @@ dependencies:
   # System tray (desktop)
   tray_manager: ^0.2.3
   
+  # Package info for version checking
+  package_info_plus: ^8.0.2
+  
+  # URL launcher for opening release pages
+  url_launcher: ^6.3.1
+  
+  # XML parsing for RSS feeds
+  xml: ^6.5.0
+
 dev_dependencies:
   flutter_test:
     sdk: flutter

flutter_app/test/update_service_test.dart

@@ -0,0 +1,69 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:rmtpocketwatcher/services/update_service.dart';
+
+void main() {
+  group('UpdateService', () {
+    late UpdateService updateService;
+
+    setUp(() {
+      updateService = UpdateService();
+    });
+
+    test('version extraction works correctly', () {
+      // Test version extraction
+      expect(updateService.extractVersionFromTag('v1.2.3'), equals('1.2.3'));
+      expect(updateService.extractVersionFromTag('1.2.3'), equals('1.2.3'));
+      expect(updateService.extractVersionFromTag('v2.0.0'), equals('2.0.0'));
+    });
+
+    test('newer version detection works correctly', () {
+      expect(updateService.isNewerVersion('1.2.4', '1.2.3'), isTrue);
+      expect(updateService.isNewerVersion('1.3.0', '1.2.9'), isTrue);
+      expect(updateService.isNewerVersion('2.0.0', '1.9.9'), isTrue);
+      expect(updateService.isNewerVersion('1.2.3', '1.2.3'), isFalse);
+      expect(updateService.isNewerVersion('1.2.2', '1.2.3'), isFalse);
+      expect(updateService.isNewerVersion('1.1.9', '1.2.0'), isFalse);
+    });
+
+    test('platform asset detection works', () {
+      final assets = [
+        ReleaseAsset(
+          name: 'rmtPocketWatcher-windows-x64.exe',
+          downloadUrl: 'https://example.com/windows.exe',
+          size: 1024,
+          contentType: 'application/octet-stream',
+        ),
+        ReleaseAsset(
+          name: 'rmtPocketWatcher-macos.dmg',
+          downloadUrl: 'https://example.com/macos.dmg',
+          size: 2048,
+          contentType: 'application/octet-stream',
+        ),
+        ReleaseAsset(
+          name: 'rmtPocketWatcher-linux.appimage',
+          downloadUrl: 'https://example.com/linux.appimage',
+          size: 3072,
+          contentType: 'application/octet-stream',
+        ),
+      ];
+
+      final updateInfo = UpdateInfo(
+        currentVersion: '1.0.0',
+        latestVersion: '1.1.0',
+        releaseUrl: 'https://example.com/release',
+        releaseName: 'Test Release',
+        releaseNotes: 'Test notes',
+        publishedAt: DateTime.now(),
+        assets: assets,
+      );
+
+      // This test would need to mock the platform detection
+      // For now, just verify the asset list is properly structured
+      expect(updateInfo.assets.length, equals(3));
+      expect(updateInfo.assets.first.name, contains('windows'));
+    });
+  });
+}
+
+// Note: The methods extractVersionFromTag and isNewerVersion are now public
+// and marked with @visibleForTesting for testing purposes