Enhance cleanup dialog with sensitivity slider for problematic entries

lib/db.dart

@@ -360,7 +360,8 @@ END;
       }
 
       // Split into individual terms, filter empty ones
-      List<String> terms = query
+      List<String> terms =
+          query
               .trim()
               .split(RegExp(r'\s+'))
               .where((term) => term.isNotEmpty)

lib/main.dart

@@ -575,6 +575,41 @@ class MainPageState extends State<MainPage> with WindowListener {
     debugPrint("Volume saved: $_volume");
   }
 
+  // Check if content appears to be keyboard smashing or repeated characters
+  bool _isLikelyKeyboardSmashing(String content) {
+    // Skip empty content
+    if (content.trim().isEmpty) return false;
+
+    // Check for repeated characters (like "wwwwwwww")
+    final repeatedCharPattern = RegExp(
+      r'(.)\1{4,}',
+    ); // 5 or more repeated chars
+    if (repeatedCharPattern.hasMatch(content)) {
+      // But allow if it's a legitimate pattern like base64
+      if (RegExp(r'^[A-Za-z0-9+/=]+$').hasMatch(content)) return false;
+      return true;
+    }
+
+    // Check for alternating characters (like "asdfasdf")
+    final alternatingPattern = RegExp(r'(.)(.)\1\2{2,}');
+    if (alternatingPattern.hasMatch(content)) return true;
+
+    // Check for common keyboard smashing patterns
+    final commonPatterns = [
+      r'[qwerty]{5,}', // Common keyboard rows
+      r'[asdf]{5,}',
+      r'[zxcv]{5,}',
+      r'[1234]{5,}',
+      r'[wasd]{5,}', // Common gaming keys
+    ];
+
+    for (final pattern in commonPatterns) {
+      if (RegExp(pattern, caseSensitive: false).hasMatch(content)) return true;
+    }
+
+    return false;
+  }
+
   Future<void> _saveData() async {
     String previousEntry = _previousEntryController.text;
     String currentEntry = _currentEntryController.text;
@@ -584,8 +619,14 @@ class MainPageState extends State<MainPage> with WindowListener {
 
     // Handle current entry
     if (currentEntry.isNotEmpty) {
+      // Skip saving if it looks like keyboard smashing
+      if (!_isLikelyKeyboardSmashing(currentEntry)) {
         await createNote(currentEntry);
         _currentEntryController.clear(); // Clear the input field after saving
+      } else {
+        debugPrint("Skipping save of likely keyboard smashing: $currentEntry");
+        _currentEntryController.clear(); // Still clear the input
+      }
     }
 
     // Handle scratch pad
@@ -756,7 +797,9 @@ class MainPageState extends State<MainPage> with WindowListener {
                                       .toList();
 
                               // Sort by date, newest first
-                              filteredResults.sort((a, b) => b.date.compareTo(a.date));
+                              filteredResults.sort(
+                                (a, b) => b.date.compareTo(a.date),
+                              );
 
                               // Important: update the dialog state after search completes
                               dialogSetState(() {
@@ -908,6 +951,207 @@ class MainPageState extends State<MainPage> with WindowListener {
     );
   }
 
+  // Show cleanup dialog
+  void _showCleanupDialog() async {
+    double sensitivity = 0.7; // Default 70%
+    final problematicEntries = await findProblematicEntries(
+      maxCharPercentage: sensitivity,
+    );
+
+    if (!mounted) return;
+
+    showDialog(
+      context: context,
+      builder: (BuildContext context) {
+        return StatefulBuilder(
+          builder: (context, dialogSetState) {
+            return AlertDialog(
+              title: const Text('Cleanup Problematic Entries'),
+              content: SizedBox(
+                width: MediaQuery.of(context).size.width * 0.7,
+                height: MediaQuery.of(context).size.height * 0.7,
+                child: Column(
+                  children: [
+                    Row(
+                      children: [
+                        const Text('Sensitivity: '),
+                        Expanded(
+                          child: Slider(
+                            value: sensitivity,
+                            min: 0.3,
+                            max: 0.9,
+                            divisions: 12,
+                            label: '${(sensitivity * 100).toInt()}%',
+                            onChanged: (value) async {
+                              dialogSetState(() {
+                                sensitivity =
+                                    (value * 100).round() /
+                                    100; // Round to 2 decimal places
+                              });
+                              // Refresh results with new sensitivity
+                              final newResults = await findProblematicEntries(
+                                maxCharPercentage: sensitivity,
+                              );
+                              dialogSetState(() {
+                                problematicEntries.clear();
+                                problematicEntries.addAll(newResults);
+                              });
+                            },
+                          ),
+                        ),
+                        Text('${(sensitivity * 100).toInt()}%'),
+                      ],
+                    ),
+                    Text(
+                      'Found ${problematicEntries.length} potentially problematic entries',
+                      style: const TextStyle(fontWeight: FontWeight.bold),
+                    ),
+                    const SizedBox(height: 16),
+                    Expanded(
+                      child:
+                          problematicEntries.isEmpty
+                              ? const Center(
+                                child: Text('No problematic entries found!'),
+                              )
+                              : ListView.builder(
+                                itemCount: problematicEntries.length,
+                                itemBuilder: (context, index) {
+                                  final note = problematicEntries[index];
+                                  return Card(
+                                    margin: const EdgeInsets.only(bottom: 8),
+                                    child: ListTile(
+                                      title: Text(
+                                        note.displayDate,
+                                        style: const TextStyle(
+                                          fontWeight: FontWeight.bold,
+                                        ),
+                                      ),
+                                      subtitle: Column(
+                                        crossAxisAlignment:
+                                            CrossAxisAlignment.start,
+                                        children: [
+                                          Text(
+                                            'Reason: ${note.problemReason}',
+                                            style: TextStyle(
+                                              color: Colors.red[700],
+                                              fontWeight: FontWeight.bold,
+                                            ),
+                                          ),
+                                          const SizedBox(height: 4),
+                                          Text(note.content),
+                                        ],
+                                      ),
+                                      trailing: Row(
+                                        mainAxisSize: MainAxisSize.min,
+                                        children: [
+                                          IconButton(
+                                            icon: const Icon(Icons.visibility),
+                                            tooltip: 'View in main window',
+                                            onPressed: () {
+                                              // Close the dialog
+                                              Navigator.of(context).pop();
+                                              // Navigate to the note in main window
+                                              setState(() {
+                                                _currentlyDisplayedNote = note;
+                                                _previousEntryController.text =
+                                                    note.content;
+                                              });
+                                              _checkNavigation();
+                                            },
+                                          ),
+                                          IconButton(
+                                            icon: const Icon(Icons.delete),
+                                            color: Colors.red,
+                                            tooltip:
+                                                'Delete (hold Shift to skip confirmation)',
+                                            onPressed: () async {
+                                              // Check if shift is pressed
+                                              final isShiftPressed =
+                                                  HardwareKeyboard
+                                                      .instance
+                                                      .isShiftPressed;
+
+                                              bool shouldDelete =
+                                                  isShiftPressed;
+                                              if (!isShiftPressed) {
+                                                // Show confirmation dialog
+                                                shouldDelete =
+                                                    await showDialog<bool>(
+                                                      context: context,
+                                                      builder:
+                                                          (
+                                                            context,
+                                                          ) => AlertDialog(
+                                                            title: const Text(
+                                                              'Delete Entry?',
+                                                            ),
+                                                            content: const Text(
+                                                              'Are you sure you want to delete this entry? This action cannot be undone.',
+                                                            ),
+                                                            actions: [
+                                                              TextButton(
+                                                                onPressed:
+                                                                    () => Navigator.of(
+                                                                      context,
+                                                                    ).pop(
+                                                                      false,
+                                                                    ),
+                                                                child:
+                                                                    const Text(
+                                                                      'Cancel',
+                                                                    ),
+                                                              ),
+                                                              TextButton(
+                                                                onPressed:
+                                                                    () => Navigator.of(
+                                                                      context,
+                                                                    ).pop(true),
+                                                                child:
+                                                                    const Text(
+                                                                      'Delete',
+                                                                    ),
+                                                              ),
+                                                            ],
+                                                          ),
+                                                    ) ??
+                                                    false;
+                                              }
+
+                                              if (shouldDelete) {
+                                                await deleteNote(note.date);
+                                                dialogSetState(() {
+                                                  problematicEntries.removeAt(
+                                                    index,
+                                                  );
+                                                });
+                                              }
+                                            },
+                                          ),
+                                        ],
+                                      ),
+                                    ),
+                                  );
+                                },
+                              ),
+                    ),
+                  ],
+                ),
+              ),
+              actions: [
+                TextButton(
+                  onPressed: () {
+                    Navigator.of(context).pop();
+                  },
+                  child: const Text('Close'),
+                ),
+              ],
+            );
+          },
+        );
+      },
+    );
+  }
+
   @override
   Widget build(BuildContext context) {
     // Wrap Scaffold with RawKeyboardListener as workaround for Escape key
@@ -939,6 +1183,12 @@ class MainPageState extends State<MainPage> with WindowListener {
         appBar: AppBar(
           title: const Text('Journaler'),
           actions: <Widget>[
+            // Add cleanup button
+            IconButton(
+              icon: const Icon(Icons.cleaning_services),
+              tooltip: 'Cleanup Problematic Entries',
+              onPressed: _showCleanupDialog,
+            ),
             // Add search button
             IconButton(
               icon: const Icon(Icons.search),

lib/notes.dart

@@ -6,8 +6,16 @@ class Note {
   late final String displayDate;
   String content;
   String? snippet;
+  bool isProblematic;
+  String problemReason;
 
-  Note({required this.date, required this.content, this.snippet}) {
+  Note({
+    required this.date,
+    required this.content,
+    this.snippet,
+    this.isProblematic = false,
+    this.problemReason = '',
+  }) {
     final dtUtc = DateFormat('yyyy-MM-dd HH:mm:ss').parse(date, true);
     final dtLocal = dtUtc.toLocal();
     displayDate = DateFormat('yyyy-MM-dd HH:mm:ss').format(dtLocal);
@@ -152,3 +160,42 @@ Future<List<Note>> searchNotes(String query) async {
       )
       .toList();
 }
+
+// Find potentially problematic entries based on character distribution
+Future<List<Note>> findProblematicEntries({
+  double maxCharPercentage = 0.7,
+}) async {
+  // Simple SQLite query that counts character occurrences using replace
+  final List<Map<String, dynamic>> results = await DB.db.rawQuery(
+    '''
+    WITH char_counts AS (
+      SELECT
+        id,
+        date,
+        content,
+        substr(content, 1, 1) as char,
+        (length(content) - length(replace(content, substr(content, 1, 1), ''))) as char_count,
+        length(content) as total_length,
+        cast(length(content) - length(replace(content, substr(content, 1, 1), '')) as float) / length(content) as percentage
+      FROM notes
+    )
+    SELECT *
+    FROM char_counts
+    WHERE percentage > ?
+    ORDER BY date DESC
+  ''',
+    [maxCharPercentage],
+  );
+
+  return results
+      .map(
+        (row) => Note(
+          date: row['date'] as String,
+          content: row['content'] as String,
+          isProblematic: true,
+          problemReason:
+              'Character "${row['char']}" makes up ${(row['percentage'] * 100).toStringAsFixed(1)}% of the content',
+        ),
+      )
+      .toList();
+}