Implement IPC to show up existing instance when re-running

Because the window APPEARS over our current window
But isn't focuseded
So we canj't see our fucking window
And we can't close the new fucking window
So it's the worst of both worlds
FUCK

lib/db.dart

@@ -33,6 +33,29 @@ CREATE TABLE IF NOT EXISTS settings (
   key TEXT PRIMARY KEY NOT NULL,
   value TEXT NOT NULL
 );
+
+-- Create virtual FTS5 table for searching notes content
+CREATE VIRTUAL TABLE IF NOT EXISTS notes_fts USING fts5(
+  content,
+  date,
+  content='notes',
+  content_rowid='id'
+);
+
+-- Trigger to keep FTS table in sync with notes table when inserting
+CREATE TRIGGER IF NOT EXISTS notes_ai AFTER INSERT ON notes BEGIN
+  INSERT INTO notes_fts(rowid, content, date) VALUES (new.id, new.content, new.date);
+END;
+
+-- Trigger to keep FTS table in sync when deleting notes
+CREATE TRIGGER IF NOT EXISTS notes_ad AFTER DELETE ON notes BEGIN
+  DELETE FROM notes_fts WHERE rowid = old.id;
+END;
+
+-- Trigger to keep FTS table in sync when updating notes
+CREATE TRIGGER IF NOT EXISTS notes_au AFTER UPDATE ON notes BEGIN
+  UPDATE notes_fts SET content = new.content, date = new.date WHERE rowid = old.id;
+END;
 ''';
 
   static Future<String> _getDatabasePath() async {
@@ -44,7 +67,7 @@ CREATE TABLE IF NOT EXISTS settings (
       if (home == null) {
         throw Exception('Could not find home directory');
       }
-      debugPrint('Home directory found: home');
+      debugPrint('Home directory found: $home');
 
       final dbDir = Directory(path.join(home, settingsDir));
       if (!await dbDir.exists()) {
@@ -58,7 +81,7 @@ CREATE TABLE IF NOT EXISTS settings (
     } else {
       // Default path for other platforms
       final databasesPath = await databaseFactoryFfi.getDatabasesPath();
-      debugPrint('Using default databases path: databasesPath');
+      debugPrint('Using default databases path: $databasesPath');
       return path.join(databasesPath, dbFileName);
     }
   }
@@ -68,7 +91,7 @@ CREATE TABLE IF NOT EXISTS settings (
     sqfliteFfiInit();
 
     final dbPath = await _getDatabasePath();
-    debugPrint('Database path: dbPath');
+    debugPrint('Database path: $dbPath');
 
     try {
       db = await databaseFactoryFfi.openDatabase(
@@ -84,7 +107,7 @@ CREATE TABLE IF NOT EXISTS settings (
       );
       debugPrint('Database opened and initialized');
     } catch (e) {
-      debugPrint('Failed to initialize database: e');
+      debugPrint('Failed to initialize database: $e');
       rethrow;
     }
   }
@@ -104,11 +127,73 @@ CREATE TABLE IF NOT EXISTS settings (
   }
 
   static Future<void> setSetting(String key, String value) async {
-    await db.insert(
-      'settings',
-      {'key': key, 'value': value},
-      conflictAlgorithm: ConflictAlgorithm.replace,
-    );
+    await db.insert('settings', {
+      'key': key,
+      'value': value,
+    }, conflictAlgorithm: ConflictAlgorithm.replace);
     debugPrint("Setting updated: $key = $value");
   }
+
+  // Search notes using FTS
+  static Future<List<Map<String, dynamic>>> searchNotes(String query) async {
+    try {
+      if (query.trim().isEmpty) {
+        return [];
+      }
+
+      // Process the query for partial word matching
+      // Split into individual terms, filter empty ones
+      List<String> terms =
+          query
+              .trim()
+              .split(RegExp(r'\s+'))
+              .where((term) => term.isNotEmpty)
+              .toList();
+
+      if (terms.isEmpty) {
+        return [];
+      }
+
+      // Add wildcards to each term for prefix matching (e.g., "fuck*" will match "fucked")
+      // Join terms with AND for all-term matching (results must contain ALL terms)
+      String ftsQuery = terms
+          .map((term) {
+            // Remove any special characters that might break the query
+            String sanitizedTerm = term.replaceAll(RegExp(r'[^\w]'), '');
+            if (sanitizedTerm.isEmpty) return '';
+
+            // Add wildcard for stemming/prefix matching
+            return '$sanitizedTerm*';
+          })
+          .where((term) => term.isNotEmpty)
+          .join(' AND ');
+
+      if (ftsQuery.isEmpty) {
+        debugPrint('Query was sanitized to empty string');
+        return [];
+      }
+
+      debugPrint('FTS query: "$ftsQuery"');
+
+      // Execute the FTS query with AND logic
+      final List<Map<String, dynamic>> results = await db.rawQuery(
+        '''
+        SELECT n.id, n.date, n.content, snippet(notes_fts, 0, '<b>', '</b>', '...', 20) as snippet
+        FROM notes_fts
+        JOIN notes n ON notes_fts.rowid = n.id
+        WHERE notes_fts MATCH ?
+        ORDER BY n.date DESC
+        LIMIT 100
+      ''',
+        [ftsQuery],
+      );
+
+      debugPrint('Search query "$ftsQuery" returned ${results.length} results');
+      return results;
+    } catch (e) {
+      debugPrint('Search failed: $e');
+      // Return empty results rather than crashing on malformed queries
+      return [];
+    }
+  }
 }

lib/main.dart

@@ -1,4 +1,5 @@
 import 'dart:async';
+import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:journaler/db.dart';
@@ -7,16 +8,66 @@ import 'package:system_tray/system_tray.dart';
 import 'package:window_manager/window_manager.dart';
 import 'package:audioplayers/audioplayers.dart';
 import 'package:flutter/gestures.dart';
+import 'dart:math';
+import 'package:path/path.dart' as path;
+import 'package:ps_list/ps_list.dart';
 
 // TODO: Sound does not play when ran from a different workdir? Weird
+// TODO: Fix saving the same scratch over and over again
 
 // Default values - will be replaced by DB values if they exist
 const Duration _defaultPopupInterval = Duration(minutes: 20);
 const String _defaultNotificationSound = 'MeetTheSniper.mp3';
 
+// Flag to indicate if there's a pending show request from a secondary instance
+bool _pendingShowRequest = false;
+
+// Global navigator key to access the navigator state from anywhere
+final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
+
+/// Paths for IPC file in system temp directory
+class AppFiles {
+  static String get ipcFilePath =>
+      path.join(Directory.systemTemp.path, 'journaler_ipc.txt');
+}
+
 void main() async {
-  await DB.init();
   WidgetsFlutterBinding.ensureInitialized();
+
+  final ipcFile = File(AppFiles.ipcFilePath);
+
+  if (await alreadyRunning()) {
+    await signalPrimaryInstanceAndExit(ipcFile);
+  } else {
+    await runPrimaryInstance(ipcFile);
+  }
+}
+
+Future<bool> alreadyRunning() async {
+  final processes = await PSList.getRunningProcesses();
+  final executable = Platform.resolvedExecutable;
+  final executableName = path.basename(executable);
+  final journalers =
+      processes
+          .where((process) => process == executableName)
+          .toList();
+  debugPrint("Journalers: $journalers");
+  return journalers.length > 1;
+}
+
+/// Run the primary instance of the application
+Future<void> runPrimaryInstance(File ipcFile) async {
+  debugPrint("Starting as primary instance");
+
+  // Create or clear the IPC file
+  if (!await ipcFile.exists()) {
+    await ipcFile.create();
+  }
+  // Start a watcher for the IPC file to detect signals from other instances
+  startIpcWatcher(ipcFile);
+
+  // Initialize the app
+  await DB.init();
   await windowManager.ensureInitialized();
 
   WindowOptions windowOptions = const WindowOptions(
@@ -32,6 +83,114 @@ void main() async {
   });
 
   runApp(const JournalerApp());
+
+  // Set up termination handlers to clean up resources
+  setupTerminationHandlers(ipcFile);
+}
+
+/// Handle termination signals by cleaning up IPC file
+void setupTerminationHandlers(File ipcFile) {
+  // Handle normal termination
+  ProcessSignal.sigterm.watch().listen((_) async {
+    await cleanupFiles(ipcFile);
+    exit(0);
+  });
+
+  // Handle Windows and Linux CTRL+C termination
+  if (Platform.isWindows || Platform.isLinux) {
+    ProcessSignal.sigint.watch().listen((_) async {
+      await cleanupFiles(ipcFile);
+      exit(0);
+    });
+  }
+}
+
+/// Clean up IPC file
+Future<void> cleanupFiles(File ipcFile) async {
+  try {
+    if (await ipcFile.exists()) {
+      await ipcFile.delete();
+    }
+    debugPrint("Removed IPC file on app termination");
+  } catch (e) {
+    debugPrint("Error cleaning up files: $e");
+  }
+}
+
+/// Signal the primary instance to show itself, then exit
+Future<void> signalPrimaryInstanceAndExit(File ipcFile) async {
+  debugPrint(
+    "Another instance is already running. Signaling it to show window.",
+  );
+
+  try {
+    // Create the IPC file if it doesn't exist
+    if (!await ipcFile.exists()) {
+      await ipcFile.create();
+    }
+
+    // Write a 'show' command with a timestamp
+    final timestamp = DateTime.now().millisecondsSinceEpoch;
+    await ipcFile.writeAsString('show:$timestamp');
+    debugPrint("Signal sent to primary instance via IPC file");
+
+    // Give the primary instance a moment to process the signal
+    await Future.delayed(const Duration(seconds: 2));
+  } catch (e) {
+    debugPrint("Error signaling primary instance: $e");
+  }
+
+  // Exit this instance
+  debugPrint("Exiting secondary instance");
+  exit(0);
+}
+
+/// Start watching the IPC file for signals from other instances
+void startIpcWatcher(File ipcFile) {
+  // Initial check of the file content
+  checkIpcFileContent(ipcFile);
+
+  // Set up a file watcher
+  final watcher = ipcFile.watch();
+  watcher.listen((event) {
+    if (event.type == FileSystemEvent.modify) {
+      checkIpcFileContent(ipcFile);
+    }
+  });
+
+  // Also set up a periodic check as a fallback
+  Timer.periodic(const Duration(milliseconds: 200), (_) {
+    checkIpcFileContent(ipcFile);
+  });
+
+  debugPrint("IPC file watcher started");
+}
+
+/// Check the IPC file content for commands
+Future<void> checkIpcFileContent(File ipcFile) async {
+  try {
+    if (await ipcFile.exists()) {
+      final content = await ipcFile.readAsString();
+
+      if (content.isNotEmpty && content.startsWith('show:')) {
+        // Clear the file immediately to avoid processing the same command multiple times
+        await ipcFile.writeAsString('');
+
+        // Process the show command
+        if (MainPageState.instance != null) {
+          debugPrint("Received show command - making window visible");
+          MainPageState.instance!.showWindow();
+        } else {
+          debugPrint(
+            "MainPageState not initialized yet - setting pending flag",
+          );
+          _pendingShowRequest = true;
+        }
+      }
+    }
+  } catch (e) {
+    debugPrint("Error processing IPC file: $e");
+  }
 }
 
 class JournalerApp extends StatelessWidget {
@@ -112,6 +271,7 @@ class JournalerApp extends StatelessWidget {
       themeMode: ThemeMode.system,
       home: const MainPage(),
       debugShowCheckedModeBanner: false,
+      navigatorKey: navigatorKey,
     );
   }
 }
@@ -124,9 +284,13 @@ class MainPage extends StatefulWidget {
 }
 
 class MainPageState extends State<MainPage> with WindowListener {
+  // Static reference to the current instance
+  static MainPageState? instance;
+
   final SystemTray _systemTray = SystemTray();
   final Menu _menu = Menu();
   final AudioPlayer _audioPlayer = AudioPlayer();
+  double _volume = 0.7; // Default volume level (0.0 to 1.0)
 
   final TextEditingController _previousEntryController =
       TextEditingController();
@@ -135,6 +299,7 @@ class MainPageState extends State<MainPage> with WindowListener {
   final TextEditingController _scratchController = TextEditingController();
   final TextEditingController _intervalController = TextEditingController();
   final TextEditingController _soundController = TextEditingController();
+  final TextEditingController _searchController = TextEditingController();
 
   Note? previousNote;
   Note? _currentlyDisplayedNote;
@@ -143,31 +308,52 @@ class MainPageState extends State<MainPage> with WindowListener {
 
   bool _canGoPrevious = false;
   bool _canGoNext = false;
+  bool _isSearching = false;
+  List<Note> _searchResults = [];
 
   Timer? _popupTimer;
   Timer? _debounceTimer;
+  Timer? _searchDebounceTimer;
 
   @override
   void initState() {
     super.initState();
+    // Store reference to this instance
+    instance = this;
     windowManager.addListener(this);
     _initSystemTray();
     _loadData();
+    _loadVolume();
     windowManager.setPreventClose(true);
     _setWindowConfig();
+
+    // Check if there's a pending show request from another instance
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (_pendingShowRequest) {
+        debugPrint("Processing pending show request during initialization");
+        _pendingShowRequest = false;
+        showWindow();
+      }
+    });
   }
 
   @override
   void dispose() {
+    // Clear reference to this instance
+    if (instance == this) {
+      instance = null;
+    }
     windowManager.removeListener(this);
     _popupTimer?.cancel();
     _debounceTimer?.cancel();
+    _searchDebounceTimer?.cancel();
     _previousEntryController.dispose();
     _currentEntryController.dispose();
     _currentEntryFocusNode.dispose();
     _scratchController.dispose();
     _intervalController.dispose();
     _soundController.dispose();
+    _searchController.dispose();
     _audioPlayer.dispose();
     super.dispose();
   }
@@ -200,7 +386,7 @@ class MainPageState extends State<MainPage> with WindowListener {
     _systemTray.registerSystemTrayEventHandler((eventName) {
       debugPrint("System Tray Event: $eventName");
       if (eventName == kSystemTrayEventClick) {
-        _showWindow();
+        showWindow();
       } else if (eventName == kSystemTrayEventRightClick) {
         _systemTray.popUpContextMenu();
       }
@@ -210,30 +396,78 @@ class MainPageState extends State<MainPage> with WindowListener {
   void _startPopupTimer() {
     _popupTimer?.cancel();
     _popupTimer = Timer.periodic(_currentPopupInterval, (timer) {
-      _showWindow();
+      showWindow();
     });
-    debugPrint("Popup timer started with interval: ${_currentPopupInterval.inMinutes} minutes");
+    debugPrint(
+      "Popup timer started with interval: ${_currentPopupInterval.inMinutes} minutes",
+    );
   }
 
-  Future<void> _showWindow() async {
+  Future<void> showWindow() async {
     _loadData();
-    bool wasVisible = await windowManager.isVisible();
-    if (!wasVisible) {
-      await windowManager.setSize(const Size(1600, 900));
-      await windowManager.center();
-      await windowManager.show();
-      await _playSound();
-    } else {
-      await windowManager.focus();
-      _currentEntryFocusNode.requestFocus();
+    try {
+      bool wasVisible = await windowManager.isVisible();
+      debugPrint("Current window visibility: $wasVisible");
+
+      if (!wasVisible) {
+        // First make sure the window has the right size and position
+        await windowManager.setSize(const Size(1600, 900));
+        await windowManager.center();
+
+        // Now show and focus
+        await windowManager.show();
+        await Future.delayed(const Duration(milliseconds: 100)); // Short delay
+        await windowManager.focus();
+
+        // Set input focus
+        _currentEntryFocusNode.requestFocus();
+
+        // Play notification sound
+        await _playSound();
+
+        debugPrint("Window made visible and focused");
+      } else {
+        // Already visible, just focus
+        await windowManager.focus();
+        _currentEntryFocusNode.requestFocus();
+        debugPrint("Window already visible, just focused");
+      }
+
+      // Verify the window is now visible
+      bool isNowVisible = await windowManager.isVisible();
+      debugPrint("Window visibility after show attempt: $isNowVisible");
+
+      if (!isNowVisible) {
+        debugPrint(
+          "WARNING: Window still not visible after show attempt, trying again",
+        );
+        await windowManager.show();
+        await windowManager.focus();
+      }
+    } catch (e) {
+      debugPrint("Error showing window: $e");
     }
   }
 
+  // Convert linear slider value (0.0-1.0) to logarithmic volume (for better human hearing perception)
+  double _linearToLogVolume(double linearValue) {
+    // Prevent log(0) which is -infinity
+    if (linearValue <= 0.01) return 0.0;
+
+    // This is a common audio perception formula based on the Weber-Fechner law
+    // Using a custom curve that gives good control at low volumes (where human hearing is most sensitive)
+    return pow(linearValue, 2).toDouble();
+  }
+
   Future<void> _playSound() async {
     await _audioPlayer.stop();
     try {
+      // Set volume before playing (convert linear slider value to log volume)
+      await _audioPlayer.setVolume(_linearToLogVolume(_volume));
       await _audioPlayer.play(AssetSource('sounds/$_currentNotificationSound'));
-      debugPrint("Played sound: $_currentNotificationSound");
+      debugPrint(
+        "Played sound: $_currentNotificationSound at volume: $_volume (log: ${_linearToLogVolume(_volume)})",
+      );
     } catch (e) {
       debugPrint("Error playing sound $_currentNotificationSound: $e");
     }
@@ -287,7 +521,9 @@ class MainPageState extends State<MainPage> with WindowListener {
     String? intervalMinutesStr = await DB.getSetting('popupIntervalMinutes');
     String? soundFileStr = await DB.getSetting('notificationSound');
 
-    int intervalMinutes = int.tryParse(intervalMinutesStr ?? '') ?? _defaultPopupInterval.inMinutes;
+    int intervalMinutes =
+        int.tryParse(intervalMinutesStr ?? '') ??
+        _defaultPopupInterval.inMinutes;
     _currentPopupInterval = Duration(minutes: intervalMinutes);
     _currentNotificationSound = soundFileStr ?? _defaultNotificationSound;
 
@@ -310,6 +546,25 @@ class MainPageState extends State<MainPage> with WindowListener {
     debugPrint("Data loaded.");
   }
 
+  // Load volume setting from database
+  Future<void> _loadVolume() async {
+    String? volumeStr = await DB.getSetting('notificationVolume');
+    if (volumeStr != null) {
+      setState(() {
+        _volume = double.tryParse(volumeStr) ?? 0.7;
+        _audioPlayer.setVolume(_linearToLogVolume(_volume));
+      });
+    } else {
+      _audioPlayer.setVolume(_linearToLogVolume(_volume));
+    }
+  }
+
+  // Save volume setting to database
+  Future<void> _saveVolume() async {
+    await DB.setSetting('notificationVolume', _volume.toString());
+    debugPrint("Volume saved: $_volume");
+  }
+
   void _saveData() async {
     String previousEntry = _previousEntryController.text;
     String currentEntry = _currentEntryController.text;
@@ -324,7 +579,8 @@ class MainPageState extends State<MainPage> with WindowListener {
       await updateNote(previousNote!);
     }
 
-    int newIntervalMinutes = int.tryParse(intervalStr) ?? _currentPopupInterval.inMinutes;
+    int newIntervalMinutes =
+        int.tryParse(intervalStr) ?? _currentPopupInterval.inMinutes;
     Duration newInterval = Duration(minutes: newIntervalMinutes);
     if (newInterval != _currentPopupInterval) {
       _currentPopupInterval = newInterval;
@@ -341,6 +597,9 @@ class MainPageState extends State<MainPage> with WindowListener {
       DB.setSetting('notificationSound', soundStr);
     }
 
+    // Also save volume
+    await _saveVolume();
+
     debugPrint(
       "Saving data... Current Entry: [${currentEntry.length} chars], Scratch: [${scratchContent.length} chars]",
     );
@@ -350,29 +609,294 @@ class MainPageState extends State<MainPage> with WindowListener {
     await windowManager.setAspectRatio(16 / 9);
   }
 
+  // Sanitize FTS query
+  String _sanitizeFtsQuery(String query) {
+    // Simple trimming - the DB layer will handle the complex processing
+    return query.trim();
+  }
+
+  // Build rich text with highlights for search results
+  List<InlineSpan> _buildHighlightedText(String highlightedText) {
+    List<InlineSpan> spans = [];
+    // The text comes with <b>highlighted parts</b>
+    RegExp exp = RegExp(r'<b>(.*?)</b>');
+
+    int lastIndex = 0;
+    for (final match in exp.allMatches(highlightedText)) {
+      // Add text before the highlight
+      if (match.start > lastIndex) {
+        spans.add(
+          TextSpan(
+            text: highlightedText.substring(lastIndex, match.start),
+            style: const TextStyle(
+              fontSize: 13,
+            ), // Smaller font for regular text
+          ),
+        );
+      }
+
+      // Add the highlighted text
+      spans.add(
+        TextSpan(
+          text: match.group(1),
+          style: const TextStyle(
+            fontWeight: FontWeight.bold,
+            backgroundColor: Colors.yellow,
+            color: Colors.black,
+            fontSize: 13, // Smaller font for highlighted text
+          ),
+        ),
+      );
+
+      lastIndex = match.end;
+    }
+
+    // Add any remaining text
+    if (lastIndex < highlightedText.length) {
+      spans.add(
+        TextSpan(
+          text: highlightedText.substring(lastIndex),
+          style: const TextStyle(fontSize: 13), // Smaller font for regular text
+        ),
+      );
+    }
+
+    return spans;
+  }
+
+  // Show search dialog
+  void _showSearchDialog() {
+    _searchController.clear();
+    _searchResults = [];
+    _isSearching = false;
+
+    showDialog(
+      context: context,
+      builder: (BuildContext context) {
+        return StatefulBuilder(
+          builder: (context, dialogSetState) {
+            return AlertDialog(
+              title: const Text('Search Notes'),
+              content: SizedBox(
+                width: MediaQuery.of(context).size.width * 0.7,
+                height: MediaQuery.of(context).size.height * 0.7,
+                child: Column(
+                  children: [
+                    TextField(
+                      controller: _searchController,
+                      decoration: const InputDecoration(
+                        labelText: 'Search Query',
+                        hintText: 'e.g. wifi or meeting',
+                        border: OutlineInputBorder(),
+                        prefixIcon: Icon(Icons.search),
+                      ),
+                      autofocus: true,
+                      onChanged: (value) async {
+                        // Start search and update dialog state
+                        if (value.isEmpty) {
+                          dialogSetState(() {
+                            _searchResults = [];
+                            _isSearching = false;
+                          });
+                          return;
+                        }
+
+                        dialogSetState(() {
+                          _isSearching = true;
+                        });
+
+                        // Escape special characters to prevent SQLite FTS syntax errors
+                        String trimmedQuery = _sanitizeFtsQuery(value);
+
+                        // Debounce search
+                        _searchDebounceTimer?.cancel();
+                        _searchDebounceTimer = Timer(
+                          const Duration(milliseconds: 300),
+                          () async {
+                            try {
+                              final results = await searchNotes(trimmedQuery);
+
+                              // Important: update the dialog state after search completes
+                              dialogSetState(() {
+                                _searchResults = results;
+                                _isSearching = false;
+                              });
+                            } catch (e) {
+                              debugPrint('Search error: $e');
+                              dialogSetState(() {
+                                _searchResults = [];
+                                _isSearching = false;
+                              });
+                            }
+                          },
+                        );
+                      },
+                    ),
+                    const SizedBox(height: 16),
+                    _isSearching
+                        ? const Center(child: CircularProgressIndicator())
+                        : Expanded(
+                          child:
+                              _searchResults.isEmpty
+                                  ? const Center(
+                                    child: Text(
+                                      'No results. Try a different search term.',
+                                    ),
+                                  )
+                                  : ListView.builder(
+                                    itemCount: _searchResults.length,
+                                    itemBuilder: (context, index) {
+                                      final note = _searchResults[index];
+                                      return Card(
+                                        margin: const EdgeInsets.only(
+                                          bottom:
+                                              6, // Reduced margin between cards
+                                        ),
+                                        child: ListTile(
+                                          dense:
+                                              true, // Makes the ListTile more compact
+                                          contentPadding:
+                                              const EdgeInsets.symmetric(
+                                                horizontal: 12,
+                                                vertical: 2,
+                                              ), // Tighter padding
+                                          title: Text(
+                                            note.date,
+                                            style: const TextStyle(
+                                              fontWeight: FontWeight.bold,
+                                              fontSize:
+                                                  12, // Smaller font for date
+                                            ),
+                                          ),
+                                          subtitle:
+                                              note.snippet != null
+                                                  ? Text.rich(
+                                                    TextSpan(
+                                                      children:
+                                                          _buildHighlightedText(
+                                                            note.snippet!,
+                                                          ),
+                                                    ),
+                                                  )
+                                                  : Text(
+                                                    note.content.length > 200
+                                                        ? '${note.content.substring(0, 200)}...'
+                                                        : note.content,
+                                                    style: const TextStyle(
+                                                      fontSize: 13,
+                                                    ), // Smaller font for content
+                                                  ),
+                                          isThreeLine: true,
+                                          onTap: () {
+                                            Navigator.of(context).pop();
+                                            this.setState(() {
+                                              _currentlyDisplayedNote = note;
+                                              _previousEntryController.text =
+                                                  note.content;
+                                            });
+                                            _checkNavigation();
+                                          },
+                                        ),
+                                      );
+                                    },
+                                  ),
+                        ),
+                  ],
+                ),
+              ),
+              actions: [
+                TextButton(
+                  onPressed: () {
+                    Navigator.of(context).pop();
+                  },
+                  child: const Text('Close'),
+                ),
+              ],
+            );
+          },
+        );
+      },
+    );
+  }
+
+  // Volume slider widget that uses a logarithmic scale
+  Widget _buildVolumeSlider() {
+    return Row(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        const Icon(Icons.volume_mute, size: 16),
+        SizedBox(
+          width: 100,
+          child: SliderTheme(
+            data: SliderTheme.of(context).copyWith(
+              trackHeight: 4.0,
+              thumbShape: const RoundSliderThumbShape(enabledThumbRadius: 8.0),
+              overlayShape: const RoundSliderOverlayShape(overlayRadius: 14.0),
+            ),
+            child: Slider(
+              value: _volume,
+              min: 0.0,
+              max: 1.0,
+              divisions: 20, // More divisions for finer control
+              onChanged: (value) {
+                setState(() {
+                  _volume = value;
+                });
+                _audioPlayer.setVolume(_linearToLogVolume(value));
+              },
+              onChangeEnd: (value) {
+                _saveVolume();
+              },
+            ),
+          ),
+        ),
+        const Icon(Icons.volume_up, size: 16),
+      ],
+    );
+  }
+
   @override
   Widget build(BuildContext context) {
     // Wrap Scaffold with RawKeyboardListener as workaround for Escape key
     return RawKeyboardListener(
-      focusNode: FocusNode(), // Needs its own node
+      focusNode:
+          FocusNode()
+            ..requestFocus(), // Request focus to ensure keyboard events are captured
       onKey: (RawKeyEvent event) {
-        if (event is RawKeyDownEvent &&
-            event.logicalKey == LogicalKeyboardKey.escape) {
-          debugPrint(
-            "Escape pressed inside MainPage (RawKeyboardListener - Workaround)",
-          );
-          // Call method directly since we are in the state
-          FocusManager.instance.primaryFocus?.unfocus(); // Keep unfocus attempt
-          onWindowClose();
+        if (event is RawKeyDownEvent) {
+          // Handle Escape to close window
+          if (event.logicalKey == LogicalKeyboardKey.escape) {
+            debugPrint(
+              "Escape pressed inside MainPage (RawKeyboardListener - Workaround)",
+            );
+            // Call method directly since we are in the state
+            FocusManager.instance.primaryFocus
+                ?.unfocus(); // Keep unfocus attempt
+            onWindowClose();
+          }
+          // Handle Ctrl+F to open search
+          else if (event.logicalKey == LogicalKeyboardKey.keyF &&
+              (event.isControlPressed || event.isMetaPressed)) {
+            debugPrint("Ctrl+F pressed, opening search dialog");
+            _showSearchDialog();
+          }
         }
       },
       child: Scaffold(
         appBar: AppBar(
           title: const Text('Journaler'),
           actions: <Widget>[
+            // Add search button
+            IconButton(
+              icon: const Icon(Icons.search),
+              tooltip: 'Search Notes',
+              onPressed: _showSearchDialog,
+            ),
             // Group Label and Input for Interval
             Padding(
-              padding: const EdgeInsets.symmetric(vertical: 8.0).copyWith(left: 8.0), // Add padding
+              padding: const EdgeInsets.symmetric(
+                vertical: 8.0,
+              ).copyWith(left: 8.0), // Add padding
               child: Row(
                 mainAxisSize: MainAxisSize.min, // Use minimum space
                 children: [
@@ -386,11 +910,14 @@ class MainPageState extends State<MainPage> with WindowListener {
                       decoration: const InputDecoration(
                         border: OutlineInputBorder(),
                         isDense: true,
-                        contentPadding: EdgeInsets.symmetric(horizontal: 8.0, vertical: 8.0),
+                        contentPadding: EdgeInsets.symmetric(
+                          horizontal: 8.0,
+                          vertical: 8.0,
+                        ),
                       ),
                       keyboardType: TextInputType.number,
                       inputFormatters: <TextInputFormatter>[
-                        FilteringTextInputFormatter.digitsOnly
+                        FilteringTextInputFormatter.digitsOnly,
                       ],
                     ),
                   ),
@@ -399,7 +926,10 @@ class MainPageState extends State<MainPage> with WindowListener {
             ),
             // Group Label and Input for Sound
             Padding(
-              padding: const EdgeInsets.symmetric(vertical: 8.0, horizontal: 8.0),
+              padding: const EdgeInsets.symmetric(
+                vertical: 8.0,
+                horizontal: 8.0,
+              ),
               child: Row(
                 mainAxisSize: MainAxisSize.min,
                 children: [
@@ -413,7 +943,10 @@ class MainPageState extends State<MainPage> with WindowListener {
                       decoration: const InputDecoration(
                         border: OutlineInputBorder(),
                         isDense: true,
-                        contentPadding: EdgeInsets.symmetric(horizontal: 8.0, vertical: 8.0),
+                        contentPadding: EdgeInsets.symmetric(
+                          horizontal: 8.0,
+                          vertical: 8.0,
+                        ),
                         hintText: 'sound.mp3',
                       ),
                     ),
@@ -421,6 +954,11 @@ class MainPageState extends State<MainPage> with WindowListener {
                 ],
               ),
             ),
+            // Volume Control Slider
+            Padding(
+              padding: const EdgeInsets.symmetric(horizontal: 8.0),
+              child: _buildVolumeSlider(),
+            ),
             // Test Sound Button
             Padding(
               padding: const EdgeInsets.symmetric(vertical: 8.0),
@@ -463,16 +1001,21 @@ class MainPageState extends State<MainPage> with WindowListener {
                         children: [
                           Expanded(
                             child: Text(
-                              _currentlyDisplayedNote?.date == previousNote?.date
+                              _currentlyDisplayedNote?.date ==
+                                      previousNote?.date
                                   ? 'Previous Entry (Latest)'
                                   : 'Entry: ${_currentlyDisplayedNote?.date ?? 'N/A'}',
-                              style: TextStyle(fontSize: 18, color: Colors.grey),
+                              style: TextStyle(
+                                fontSize: 18,
+                                color: Colors.grey,
+                              ),
                             ),
                           ),
                           IconButton(
                             icon: const Icon(Icons.arrow_back),
                             tooltip: 'Previous Note',
-                            onPressed: _canGoPrevious ? _goToPreviousNote : null,
+                            onPressed:
+                                _canGoPrevious ? _goToPreviousNote : null,
                           ),
                           IconButton(
                             icon: const Icon(Icons.arrow_forward),
@@ -484,19 +1027,27 @@ class MainPageState extends State<MainPage> with WindowListener {
                       Expanded(
                         child: TextField(
                           controller: _previousEntryController,
-                          readOnly: _currentlyDisplayedNote?.date != previousNote?.date,
+                          readOnly:
+                              _currentlyDisplayedNote?.date !=
+                              previousNote?.date,
                           maxLines: null,
                           expands: true,
                           style: Theme.of(context).textTheme.bodyMedium,
                           decoration: InputDecoration(
-                            hintText: _currentlyDisplayedNote?.date != previousNote?.date
-                                ? 'Viewing note from ${_currentlyDisplayedNote?.date} (Read-Only)'
-                                : 'Latest Note',
+                            hintText:
+                                _currentlyDisplayedNote?.date !=
+                                        previousNote?.date
+                                    ? 'Viewing note from ${_currentlyDisplayedNote?.date} (Read-Only)'
+                                    : 'Latest Note',
                             border: const OutlineInputBorder(),
-                            filled: _currentlyDisplayedNote?.date != previousNote?.date,
-                            fillColor: _currentlyDisplayedNote?.date != previousNote?.date
-                                ? Colors.grey.withOpacity(0.1)
-                                : null,
+                            filled:
+                                _currentlyDisplayedNote?.date !=
+                                previousNote?.date,
+                            fillColor:
+                                _currentlyDisplayedNote?.date !=
+                                        previousNote?.date
+                                    ? Colors.grey.withOpacity(0.1)
+                                    : null,
                           ),
                         ),
                       ),
@@ -525,10 +1076,11 @@ class MainPageState extends State<MainPage> with WindowListener {
                   controller: _scratchController,
                   maxLines: null,
                   expands: true,
-                  style: Theme.of(context).textTheme.bodyMedium, // Apply theme text style
-                  decoration: const InputDecoration(
-                    labelText: 'Scratch',
-                  ),
+                  style:
+                      Theme.of(
+                        context,
+                      ).textTheme.bodyMedium, // Apply theme text style
+                  decoration: const InputDecoration(labelText: 'Scratch'),
                 ),
               ),
             ],

lib/notes.dart

@@ -3,8 +3,10 @@ import 'package:journaler/db.dart';
 class Note {
   final String date;
   String content;
+  String?
+  snippet; // Optional field to hold highlighted snippets for search results
 
-  Note({required this.date, required this.content});
+  Note({required this.date, required this.content, this.snippet});
 }
 
 class Scratch {
@@ -100,3 +102,25 @@ Future<Note?> getNextNote(String currentDate) async {
   // This handles the case where the `currentDate` might not be the absolute latest.
   return getLatestNote();
 }
+
+// Search notes using full-text search
+Future<List<Note>> searchNotes(String query) async {
+  if (query.isEmpty) {
+    return [];
+  }
+
+  // Call DB search function
+  final List<Map<String, dynamic>> results = await DB.searchNotes(query);
+
+  // Convert results to Note objects
+  return results
+      .map(
+        (result) => Note(
+          date: result['date'] as String,
+          content: result['content'] as String,
+          snippet:
+              result['snippet'] as String?, // Highlighted snippets from FTS
+        ),
+      )
+      .toList();
+}

pubspec.lock

@@ -289,7 +289,7 @@ packages:
     source: hosted
     version: "1.16.0"
   path:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: path
       sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5"
@@ -376,6 +376,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.0.2"
+  ps_list:
+    dependency: "direct main"
+    description:
+      name: ps_list
+      sha256: "19d32f6c643313cf4f5101bb144b8978b9ba3dc42c9a01b247e8ed90581bc0ab"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.0.5"
   screen_retriever:
     dependency: transitive
     description:

pubspec.yaml

@@ -38,6 +38,8 @@ dependencies:
   window_manager: ^0.4.3
   audioplayers: ^6.4.0
   sqflite_common_ffi: ^2.3.5
+  path: ^1.8.0
+  ps_list: ^0.0.5
 
 dev_dependencies:
   flutter_test: