Implement IPC to show up existing instance when re-running

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();
       }
@@ -210,32 +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 windowManager.focus();
-      _currentEntryFocusNode.requestFocus();
-      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");
     }
@@ -289,7 +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;
 
@@ -312,6 +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;
@@ -326,7 +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;
@@ -343,6 +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]",
     );
@@ -352,29 +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: [
@@ -388,11 +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,
                       ],
                     ),
                   ),
@@ -401,7 +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: [
@@ -415,7 +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',
                       ),
                     ),
@@ -423,6 +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),
@@ -465,16 +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),
@@ -486,19 +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,
                           ),
                         ),
                       ),
@@ -527,10 +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: