Add Note.apply

Avoid calling each setter as each results in the entire tree being
rebuilt.

lib/core/checklist.dart

@@ -102,10 +102,11 @@ class Checklist {
     for (var item in items) {
       _lines[item.lineNo] = item.toString();
     }
-    _note.body = _lines.join('\n');
+    var body = _lines.join('\n');
     if (endsWithNewLine) {
-      _note.body += '\n';
+      body += '\n';
     }
+    _note.apply(body: body);
     return _note;
   }
 

lib/core/note.dart

@@ -96,7 +96,7 @@ class Note {
     Map<String, dynamic> extraProps = const {},
     String fileName = "",
   }) : fileLastModified = DateTime.fromMillisecondsSinceEpoch(0) {
-    created = DateTime.now();
+    _created = DateTime.now();
     _loadState = NoteLoadState.Loaded;
     _fileFormat = NoteFileFormat.Markdown;
     var settings = NoteSerializationSettings.fromConfig(parent.config);
@@ -158,10 +158,73 @@ class Note {
     return _filePath as String;
   }
 
-  set filePath(String newpath) {
+  void apply({
-    _filePath = newpath;
+    String? filePath,
+    DateTime? created,
+    DateTime? modified,
+    String? body,
+    String? title,
+    NoteType? type,
+    Map<String, dynamic>? extraProps,
+    Set<String>? tags,
+    NoteFileFormat? fileFormat,
+    NoteLoadState? loadState,
+  }) {
+    var changed = false;
+    if (filePath != null) {
+      _filePath = filePath;
+      changed = true;
+    }
+    if (canHaveMetadata) {
+      if (created != null && created != _created) {
+        _created = created;
+        changed = true;
+      }
+      if (modified != null && modified != _modified) {
+        _modified = modified;
+        changed = true;
+      }
+
+      if (type != null && type != _type) {
+        _type = type;
+        changed = true;
+      }
+
+      if (extraProps != null) {
+        _extraProps = extraProps;
+        changed = true;
+      }
+
+      if (tags != null) {
+        _tags = tags;
+        changed = true;
+      }
+    }
+
+    if (body != null && body != _body) {
+      _body = body;
+      changed = true;
+    }
+
+    if (title != null && title != _title) {
+      _title = title;
+      changed = true;
+    }
+
+    if (fileFormat != null && _fileFormat != fileFormat) {
+      _fileFormat = fileFormat;
+      changed = true;
+    }
+
+    if (loadState != null && _loadState != loadState) {
+      _loadState = loadState;
+      changed = true;
+    }
+
+    if (changed) {
       _notifyModified();
     }
+  }
 
   String get fileName {
     return p.basename(filePath);
@@ -171,88 +234,35 @@ class Note {
     return _created;
   }
 
-  set created(DateTime? dt) {
-    if (!canHaveMetadata) return;
-
-    _created = dt;
-    _notifyModified();
-  }
-
   DateTime? get modified {
     return _modified;
   }
 
-  set modified(DateTime? dt) {
-    if (!canHaveMetadata) return;
-
-    _modified = dt;
-    _notifyModified();
-  }
-
   void updateModified() {
-    modified = DateTime.now();
+    _modified = DateTime.now();
+    _notifyModified();
   }
 
   String get body {
     return _body;
   }
 
-  set body(String newBody) {
-    if (newBody == _body) {
-      return;
-    }
-
-    _body = newBody;
-
-    _notifyModified();
-  }
-
   String get title {
     return _title;
   }
 
-  set title(String title) {
-    if (title != _title) {
-      _title = title;
-      _notifyModified();
-    }
-  }
-
   NoteType get type {
     return _type;
   }
 
-  set type(NoteType type) {
-    if (!canHaveMetadata) return;
-
-    if (type != _type) {
-      _type = type;
-      _notifyModified();
-    }
-  }
-
   Set<String> get tags {
     return _tags;
   }
 
-  set tags(Set<String> tags) {
-    if (!canHaveMetadata) return;
-
-    _tags = tags;
-    _notifyModified();
-  }
-
   Map<String, dynamic> get extraProps {
     return _extraProps;
   }
 
-  set extraProps(Map<String, dynamic> props) {
-    if (!canHaveMetadata) return;
-
-    _extraProps = props;
-    _notifyModified();
-  }
-
   bool get canHaveMetadata {
     if (_fileFormat == NoteFileFormat.Txt ||
         _fileFormat == NoteFileFormat.OrgMode) {
@@ -277,11 +287,6 @@ class Note {
     return _loadState;
   }
 
-  set loadState(NoteLoadState state) {
-    _loadState = state;
-    _notifyModified();
-  }
-
   @override
   int get hashCode => _filePath.hashCode;
 
@@ -341,11 +346,6 @@ class Note {
   NoteFileFormat? get fileFormat {
     return _fileFormat;
   }
-
-  set fileFormat(NoteFileFormat? format) {
-    _fileFormat = format;
-    _notifyModified();
-  }
 }
 
 String ensureFileNameUnique(String parentDir, String name, String ext) {

lib/core/note_serializer.dart

@@ -141,6 +141,7 @@ class NoteSerializer implements NoteSerializerInterface {
   void decode(MdYamlDoc data, Note note) {
     var propsUsed = <String>{};
 
+    DateTime? modified;
     var modifiedKeyOptions = [
       "modified",
       "mod",
@@ -154,10 +155,10 @@ class NoteSerializer implements NoteSerializerInterface {
       var val = data.props[possibleKey];
       if (val != null) {
         if (val is int) {
-          note.modified = parseUnixTimeStamp(val);
+          modified = parseUnixTimeStamp(val);
           settings.modifiedFormat = DateFormat.UnixTimeStamp;
         } else {
-          note.modified = parseDateTime(val.toString());
+          modified = parseDateTime(val.toString());
           settings.modifiedFormat = DateFormat.Iso8601;
         }
         settings.modifiedKey = possibleKey;
@@ -167,8 +168,9 @@ class NoteSerializer implements NoteSerializerInterface {
       }
     }
 
-    note.body = settings.emojify ? emojiParser.emojify(data.body) : data.body;
+    var body = settings.emojify ? emojiParser.emojify(data.body) : data.body;
 
+    DateTime? created;
     var createdKeyOptions = [
       "created",
       "date",
@@ -177,10 +179,10 @@ class NoteSerializer implements NoteSerializerInterface {
       var val = data.props[possibleKey];
       if (val != null) {
         if (val is int) {
-          note.created = parseUnixTimeStamp(val);
+          created = parseUnixTimeStamp(val);
           settings.createdFormat = DateFormat.UnixTimeStamp;
         } else {
-          note.created = parseDateTime(val.toString());
+          created = parseDateTime(val.toString());
           settings.createdFormat = DateFormat.Iso8601;
         }
         settings.createdKey = possibleKey;
@@ -193,15 +195,16 @@ class NoteSerializer implements NoteSerializerInterface {
     //
     // Title parsing
     //
+    String? title;
     if (data.props.containsKey(settings.titleKey)) {
-      var title = data.props[settings.titleKey]?.toString() ?? "";
+      title = data.props[settings.titleKey]?.toString() ?? "";
-      note.title = settings.emojify ? emojiParser.emojify(title) : title;
+      title = settings.emojify ? emojiParser.emojify(title) : title;
 
       propsUsed.add(settings.titleKey);
       settings.titleSettings = SettingsTitle.InYaml;
     } else {
       var startsWithH1 = false;
-      for (var line in LineSplitter.split(note.body)) {
+      for (var line in LineSplitter.split(body)) {
         if (line.trim().isEmpty) {
           continue;
         }
@@ -210,35 +213,36 @@ class NoteSerializer implements NoteSerializerInterface {
       }
 
       if (startsWithH1) {
-        var titleStartIndex = note.body.indexOf('#');
+        var titleStartIndex = body.indexOf('#');
-        var titleEndIndex = note.body.indexOf('\n', titleStartIndex);
+        var titleEndIndex = body.indexOf('\n', titleStartIndex);
-        if (titleEndIndex == -1 || titleEndIndex == note.body.length) {
+        if (titleEndIndex == -1 || titleEndIndex == body.length) {
-          note.title = note.body.substring(titleStartIndex + 1).trim();
+          title = body.substring(titleStartIndex + 1).trim();
-          note.body = "";
+          body = "";
         } else {
-          note.title =
+          title = body.substring(titleStartIndex + 1, titleEndIndex).trim();
-              note.body.substring(titleStartIndex + 1, titleEndIndex).trim();
+          body = body.substring(titleEndIndex + 1).trim();
-          note.body = note.body.substring(titleEndIndex + 1).trim();
         }
       }
     }
 
-    var type = data.props[settings.typeKey];
+    NoteType? type;
-    switch (type) {
+    var typeStr = data.props[settings.typeKey];
+    switch (typeStr) {
       case "Checklist":
-        note.type = NoteType.Checklist;
+        type = NoteType.Checklist;
         break;
       case "Journal":
-        note.type = NoteType.Journal;
+        type = NoteType.Journal;
         break;
       default:
-        note.type = NoteType.Unknown;
+        type = NoteType.Unknown;
         break;
     }
-    if (type != null) {
+    if (typeStr != null) {
       propsUsed.add(settings.typeKey);
     }
 
+    Set<String>? _tags;
     try {
       var tagKeyOptions = [
         "tags",
@@ -249,9 +253,9 @@ class NoteSerializer implements NoteSerializerInterface {
         var tags = data.props[possibleKey];
         if (tags != null) {
           if (tags is YamlList) {
-            note.tags = tags.map((t) => t.toString()).toSet();
+            _tags = tags.map((t) => t.toString()).toSet();
           } else if (tags is List) {
-            note.tags = tags.map((t) => t.toString()).toSet();
+            _tags = tags.map((t) => t.toString()).toSet();
           } else if (tags is String) {
             settings.tagsInString = true;
             var allTags = tags.split(' ');
@@ -261,7 +265,7 @@ class NoteSerializer implements NoteSerializerInterface {
               allTags = allTags.map((e) => e.substring(1)).toList();
             }
 
-            note.tags = allTags.toSet();
+            _tags = allTags.toSet();
           } else {
             Log.e("Note Tags Decoding Failed: $tags");
           }
@@ -276,13 +280,23 @@ class NoteSerializer implements NoteSerializerInterface {
     }
 
     // Extra Props
-    note.extraProps = {};
+    var extraProps = <String, dynamic>{};
     data.props.forEach((key, val) {
       if (propsUsed.contains(key)) {
         return;
       }
 
-      note.extraProps[key] = val;
+      extraProps[key] = val;
     });
+
+    note.apply(
+      created: created,
+      modified: modified,
+      body: body,
+      title: title,
+      type: type,
+      extraProps: extraProps,
+      tags: _tags,
+    );
   }
 }

lib/core/note_storage.dart

@@ -56,14 +56,12 @@ class NoteStorage {
       } catch (e, stackTrace) {
         if (e is FileSystemException &&
             e.osError!.errorCode == 2 /* File Not Found */) {
-          note.loadState = NoteLoadState.NotExists;
+          note.apply(loadState: NoteLoadState.NotExists);
-          note.parent.noteModified(note);
           return Result(note.loadState);
         }
 
         logExceptionWarning(e, stackTrace);
-        note.loadState = NoteLoadState.Error;
+        note.apply(loadState: NoteLoadState.Error);
-        note.parent.noteModified(note);
         return Result(note.loadState);
       }
       Log.d("Note modified: $note.filePath");
@@ -78,49 +76,48 @@ class NoteStorage {
       var dataResult = await mdYamlDocLoader.loadDoc(note.filePath);
       if (dataResult.isSuccess) {
         note.data = dataResult.getOrThrow();
-        note.fileFormat = NoteFileFormat.Markdown;
+        note.apply(fileFormat: NoteFileFormat.Markdown);
       } else {
         if (dataResult.error is MdYamlDocNotFoundException) {
-          note.loadState = NoteLoadState.NotExists;
+          note.apply(loadState: NoteLoadState.NotExists);
-          note.parent.noteModified(note);
           return Result(note.loadState);
         }
         if (dataResult.error is MdYamlParsingException) {
-          note.loadState = NoteLoadState.Error;
+          note.apply(loadState: NoteLoadState.Error);
-          note.parent.noteModified(note);
           return Result(note.loadState);
         }
       }
     } else if (isTxt) {
       try {
-        note.body = await File(note.filePath).readAsString();
+        note.apply(
-        note.fileFormat = NoteFileFormat.Txt;
+          body: await File(note.filePath).readAsString(),
+          fileFormat: NoteFileFormat.Txt,
+        );
       } catch (e, stackTrace) {
         logExceptionWarning(e, stackTrace);
 
-        note.loadState = NoteLoadState.Error;
+        note.apply(loadState: NoteLoadState.Error);
-        note.parent.noteModified(note);
         return Result(note.loadState);
       }
     } else if (isOrg) {
       try {
-        note.body = await File(note.filePath).readAsString();
+        note.apply(
-        note.fileFormat = NoteFileFormat.OrgMode;
+          body: await File(note.filePath).readAsString(),
+          fileFormat: NoteFileFormat.OrgMode,
+        );
       } catch (e, stackTrace) {
         logExceptionWarning(e, stackTrace);
 
-        note.loadState = NoteLoadState.Error;
+        note.apply(loadState: NoteLoadState.Error);
-        note.parent.noteModified(note);
         return Result(note.loadState);
       }
     } else {
-      note.loadState = NoteLoadState.Error;
+      note.apply(loadState: NoteLoadState.Error);
-      note.parent.noteModified(note);
       return Result(note.loadState);
     }
 
     note.fileLastModified = file.lastModifiedSync();
-    note.loadState = NoteLoadState.Loaded;
+    note.apply(loadState: NoteLoadState.Loaded);
 
     note.parent.noteModified(note);
     return Result(note.loadState);

lib/core/notes_folder_fs.dart

@@ -557,7 +557,7 @@ class NotesFolderFS with NotesFolderNotifier implements NotesFolder {
     if (File(oldFilePath).existsSync()) {
       File(note.filePath).renameSync(newFilePath);
     }
-    note.filePath = newFilePath;
+    note.apply(filePath: newFilePath);
 
     _noteRenamed(note, oldFilePath);
   }

lib/core/transformers/emoji.dart

@@ -13,15 +13,19 @@ class EmojiTransformer implements NoteReadTransformer, NoteWriteTransformer {
 
   @override
   Future<Note> onRead(Note note) async {
-    note.title = _emojiParser.emojify(note.title);
+    note.apply(
-    note.body = _emojiParser.emojify(note.body);
+      body: _emojiParser.emojify(note.body),
+      title: _emojiParser.emojify(note.title),
+    );
     return note;
   }
 
   @override
   Future<Note> onWrite(Note note) async {
-    note.body = _emojiParser.unemojify(note.body);
+    note.apply(
-    note.title = _emojiParser.unemojify(note.title);
+      body: _emojiParser.unemojify(note.body),
+      title: _emojiParser.unemojify(note.title),
+    );
     return note;
   }
 }

lib/editors/checklist_editor.dart

@@ -226,8 +226,10 @@ class ChecklistEditorState extends State<ChecklistEditor>
     }
 
     var note = checklist.note;
-    note.title = _titleTextController.text.trim();
+    note.apply(
-    note.type = NoteType.Checklist;
+      title: _titleTextController.text.trim(),
+      type: NoteType.Checklist,
+    );
     return note;
   }
 
@@ -313,7 +315,7 @@ class ChecklistEditorState extends State<ChecklistEditor>
   Future<void> addImage(String filePath) async {
     var note = getNote();
     var image = await core.Image.copyIntoFs(note.parent, filePath);
-    note.body += image.toMarkup(note.fileFormat);
+    note.apply(body: note.body + image.toMarkup(note.fileFormat));
 
     setState(() {
       checklist = Checklist(note);

lib/editors/journal_editor.dart

@@ -134,8 +134,10 @@ class JournalEditorState extends State<JournalEditor>
 
   @override
   Note getNote() {
-    note.body = _textController.text.trim();
+    note.apply(
-    note.type = NoteType.Journal;
+      body: _textController.text.trim(),
+      type: NoteType.Journal,
+    );
     return note;
   }
 
@@ -174,7 +176,7 @@ class JournalEditorState extends State<JournalEditor>
   Future<void> addImage(String filePath) async {
     var note = getNote();
     var image = await core.Image.copyIntoFs(note.parent, filePath);
-    note.body += image.toMarkup(note.fileFormat);
+    note.apply(body: note.body + image.toMarkup(note.fileFormat));
 
     setState(() {
       _textController.text = note.body;

lib/editors/markdown_editor.dart

@@ -162,9 +162,11 @@ class MarkdownEditorState extends State<MarkdownEditor>
   }
 
   void _updateNote() {
-    note.title = _titleTextController.text.trim();
+    note.apply(
-    note.body = _textController.text;
+      body: _textController.text.trim(),
-    note.type = NoteType.Unknown;
+      title: _titleTextController.text.trim(),
+      type: NoteType.Unknown,
+    );
   }
 
   @override
@@ -218,7 +220,7 @@ class MarkdownEditorState extends State<MarkdownEditor>
   Future<void> addImage(String filePath) async {
     var note = getNote();
     var image = await core.Image.copyIntoFs(note.parent, filePath);
-    note.body += image.toMarkup(note.fileFormat);
+    note.apply(body: note.body + image.toMarkup(note.fileFormat));
 
     setState(() {
       _textController.text = note.body;

lib/editors/org_editor.dart

@@ -154,7 +154,7 @@ class OrgEditorState extends State<OrgEditor>
   Future<void> addImage(String filePath) async {
     var note = getNote();
     var image = await core.Image.copyIntoFs(note.parent, filePath);
-    note.body += image.toMarkup(note.fileFormat);
+    note.apply(body: note.body + image.toMarkup(note.fileFormat));
 
     setState(() {
       _textController.text = note.body;

lib/editors/raw_editor.dart

@@ -162,7 +162,7 @@ class RawEditorState extends State<RawEditor>
   Future<void> addImage(String filePath) async {
     var note = getNote();
     var image = await core.Image.copyIntoFs(note.parent, filePath);
-    note.body += image.toMarkup(note.fileFormat);
+    note.apply(body: note.body + image.toMarkup(note.fileFormat));
 
     setState(() {
       _textController.text = note.body;

lib/screens/note_editor.dart

@@ -117,7 +117,7 @@ class NoteEditorState extends State<NoteEditor> with WidgetsBindingObserver {
   ) {
     note = Note.newNote(folder, extraProps: extraProps, fileName: fileName);
     if (existingText.isNotEmpty) {
-      note!.body = existingText;
+      note!.apply(body: existingText);
     }
 
     if (existingImages.isNotEmpty) {
@@ -125,7 +125,7 @@ class NoteEditorState extends State<NoteEditor> with WidgetsBindingObserver {
         () async {
           try {
             var image = await core.Image.copyIntoFs(note!.parent, imagePath);
-            note!.body += image.toMarkup(note!.fileFormat);
+            note!.apply(body: note!.body + image.toMarkup(note!.fileFormat));
           } catch (e, st) {
             Log.e("New Note Existing Image", ex: e, stacktrace: st);
           }
@@ -489,7 +489,7 @@ class NoteEditorState extends State<NoteEditor> with WidgetsBindingObserver {
     if (!eq(note!.tags, newTags)) {
       setState(() {
         Log.i("Settings tags to: $newTags");
-        note!.tags = newTags;
+        note!.apply(tags: newTags);
       });
     }
   }

lib/settings/settings_note_metadata.dart

@@ -51,23 +51,28 @@ class _NoteMetadataSettingsScreenState
 
     var parent = NotesFolderFS(null, '', folderConfig);
     var note = Note(parent, "fileName.md", DateTime.now());
-    note.title = tr("settings.noteMetaData.exampleTitle");
-    note.body = tr("settings.noteMetaData.exampleBody");
-    note.created = created;
-    note.modified = modified;
-    note.tags = {
-      tr("settings.noteMetaData.exampleTag1"),
-      tr("settings.noteMetaData.exampleTag2"),
-    };
 
+    Map<String, dynamic>? extraProps;
     if (settings.customMetaData != "") {
       var customMetaDataMap =
           MarkdownYAMLCodec.parseYamlText(settings.customMetaData);
       if (customMetaDataMap.isNotEmpty) {
-        note.extraProps = customMetaDataMap;
+        extraProps = customMetaDataMap;
       }
     }
 
+    note.apply(
+      title: tr("settings.noteMetaData.exampleTitle"),
+      body: tr("settings.noteMetaData.exampleBody"),
+      created: created,
+      modified: modified,
+      extraProps: extraProps,
+      tags: {
+        tr("settings.noteMetaData.exampleTag1"),
+        tr("settings.noteMetaData.exampleTag2"),
+      },
+    );
+
     var body = Column(
       children: <Widget>[
         Padding(

test/core/flattened_filtered_notes_folder_test.dart

@@ -47,8 +47,10 @@ void main() {
       for (var i = 0; i < 3; i++) {
         var note = Note(rootFolder, _getRandomFilePath(rootFolder.folderPath),
             DateTime.now());
-        note.modified = DateTime(2020, 1, 10 + (i * 2));
+        note.apply(
-        note.body = "$i\n";
+          modified: DateTime(2020, 1, 10 + (i * 2)),
+          body: "$i\n",
+        );
         await NoteStorage().save(note).throwOnError();
       }
 
@@ -61,8 +63,10 @@ void main() {
       for (var i = 0; i < 2; i++) {
         var note = Note(sub1Folder, _getRandomFilePath(sub1Folder.folderPath),
             DateTime.now());
-        note.modified = DateTime(2020, 1, 10 + (i * 2));
+        note.apply(
-        note.body = "sub1-$i\n";
+          modified: DateTime(2020, 1, 10 + (i * 2)),
+          body: "sub1-$i\n",
+        );
         await NoteStorage().save(note).throwOnError();
       }
 
@@ -71,8 +75,10 @@ void main() {
       for (var i = 0; i < 2; i++) {
         var note = Note(sub2Folder, _getRandomFilePath(sub2Folder.folderPath),
             DateTime.now());
-        note.modified = DateTime(2020, 1, 10 + (i * 2));
+        note.apply(
-        note.body = "sub2-$i\n";
+          modified: DateTime(2020, 1, 10 + (i * 2)),
+          body: "sub2-$i\n",
+        );
         await NoteStorage().save(note).throwOnError();
       }
 
@@ -81,8 +87,10 @@ void main() {
       for (var i = 0; i < 2; i++) {
         var note = Note(
             p1Folder, _getRandomFilePath(p1Folder.folderPath), DateTime.now());
-        note.modified = DateTime(2020, 1, 10 + (i * 2));
+        note.apply(
-        note.body = "p1-$i\n";
+          modified: DateTime(2020, 1, 10 + (i * 2)),
+          body: "p1-$i\n",
+        );
         await NoteStorage().save(note).throwOnError();
       }
 

test/flattened_notes_folder_large_test.dart

@@ -69,8 +69,9 @@ Future<void> _writeRandomNote(
   }
 
   var note = Note(NotesFolderFS(null, dirPath, config), path, DateTime.now());
-  note.modified = DateTime(2014, 1, 1 + (random.nextInt(2000)));
+  note.apply(
-  note.body = "p1";
+    modified: DateTime(2014, 1, 1 + (random.nextInt(2000))),
-
+    body: "p1",
+  );
   await NoteStorage().save(note).throwOnError();
 }

test/flattened_notes_folder_test.dart

@@ -47,8 +47,10 @@ void main() {
       for (var i = 0; i < 3; i++) {
         var note = Note(rootFolder, _getRandomFilePath(rootFolder.folderPath),
             DateTime.now());
-        note.modified = DateTime(2020, 1, 10 + (i * 2));
+        note.apply(
-        note.body = "$i\n";
+          modified: DateTime(2020, 1, 10 + (i * 2)),
+          body: "$i\n",
+        );
         await NoteStorage().save(note).throwOnError();
       }
 
@@ -61,8 +63,10 @@ void main() {
       for (var i = 0; i < 2; i++) {
         var note = Note(sub1Folder, _getRandomFilePath(sub1Folder.folderPath),
             DateTime.now());
-        note.modified = DateTime(2020, 1, 10 + (i * 2));
+        note.apply(
-        note.body = "sub1-$i\n";
+          modified: DateTime(2020, 1, 10 + (i * 2)),
+          body: "sub1-$i\n",
+        );
         await NoteStorage().save(note).throwOnError();
       }
 
@@ -71,8 +75,10 @@ void main() {
       for (var i = 0; i < 2; i++) {
         var note = Note(sub2Folder, _getRandomFilePath(sub2Folder.folderPath),
             DateTime.now());
-        note.modified = DateTime(2020, 1, 10 + (i * 2));
+        note.apply(
-        note.body = "sub2-$i\n";
+          modified: DateTime(2020, 1, 10 + (i * 2)),
+          body: "sub2-$i\n",
+        );
         await NoteStorage().save(note).throwOnError();
       }
 
@@ -81,8 +87,10 @@ void main() {
       for (var i = 0; i < 2; i++) {
         var note = Note(
             p1Folder, _getRandomFilePath(p1Folder.folderPath), DateTime.now());
-        note.modified = DateTime(2020, 1, 10 + (i * 2));
+        note.apply(
-        note.body = "p1-$i\n";
+          modified: DateTime(2020, 1, 10 + (i * 2)),
+          body: "p1-$i\n",
+        );
         await NoteStorage().save(note).throwOnError();
       }
 
@@ -120,8 +128,10 @@ void main() {
 
       var p1 = (f.fsFolder as NotesFolderFS).getFolderWithSpec("sub1/p1")!;
       var note = Note(p1, p.join(p1.folderPath, "new.md"), DateTime.now());
-      note.modified = DateTime(2020, 2, 1);
+      note.apply(
-      note.body = "new\n";
+        modified: DateTime(2020, 2, 1),
+        body: "new\n",
+      );
       await NoteStorage().save(note).throwOnError();
 
       p1.add(note);

test/note_serializer_test.dart

@@ -42,8 +42,7 @@ void main() {
       expect(note.body, "I ❤️ you");
       expect(note.title, "Why not ☕?");
 
-      note.body = "Why not ☕?";
+      note.apply(body: "Why not ☕?", title: "I ❤️ you");
-      note.title = "I ❤️ you";
 
       serializer.encode(note, doc);
       expect(doc.body, "Why not :coffee:?");
@@ -64,8 +63,7 @@ void main() {
       expect(note.body, "I heart you");
       expect(note.title, "Why not coffee?");
 
-      note.body = "Why not coffee?";
+      note.apply(body: "Why not coffee?", title: "I heart you");
-      note.title = "I heart you";
 
       serializer.encode(note, doc);
       expect(doc.body, "# I heart you\n\nWhy not coffee?");

test/note_storage_test.dart

@@ -42,8 +42,7 @@ void main() {
 
       var parent = NotesFolderFS(null, tempDir.path, config);
       var n1 = Note(parent, n1Path, DateTime.now());
-      n1.body = "test\n";
+      n1.apply(created: dt, body: "test\n");
-      n1.created = dt;
 
       var n2 = Note(parent, n2Path, DateTime.now());
       n2.data = MdYamlDoc(body: "test2\n", props: props);

test/note_test.dart

@@ -48,7 +48,7 @@ Hello
       var note = Note(parentFolder, notePath, DateTime.now());
       await storage.load(note);
 
-      note.modified = DateTime.utc(2019, 12, 02, 4, 0, 0);
+      note.apply(modified: DateTime.utc(2019, 12, 02, 4, 0, 0));
 
       await NoteStorage().save(note).throwOnError();
 
@@ -80,7 +80,7 @@ Hello
       var note = Note(parentFolder, notePath, DateTime.now());
       await storage.load(note);
 
-      note.modified = DateTime.utc(2019, 12, 02, 4, 0, 0);
+      note.apply(modified: DateTime.utc(2019, 12, 02, 4, 0, 0));
 
       await NoteStorage().save(note).throwOnError();
 
@@ -116,10 +116,7 @@ Hello
       expect(note.tags.contains('B'), true);
       expect(note.tags.length, 2);
 
-      note.tags = {...note.tags}..add('C');
+      note.apply(tags: {'A', 'C', 'D'});
-      note.tags.add('D');
-      note.tags.remove('B');
-
       await NoteStorage().save(note).throwOnError();
 
       var expectedContent = """---
@@ -260,8 +257,10 @@ Hello
       expect(note.modified, DateTime.parse('2021-07-14T10:14:49Z'));
       expect(note.created, DateTime.parse('2021-07-14T10:14:49Z'));
 
-      note.modified = DateTime.parse('2020-07-14T10:14:49Z');
+      note.apply(
-      note.created = DateTime.parse('2020-06-13T10:14:49Z');
+        created: DateTime.parse('2020-06-13T10:14:49Z'),
+        modified: DateTime.parse('2020-07-14T10:14:49Z'),
+      );
 
       var expectedContent = """---
 bar: Foo

test/sorted_notes_folder_test.dart

@@ -38,8 +38,10 @@ void main() {
             folder,
             p.join(folder.folderPath, "${random.nextInt(1000)}.md"),
             DateTime.now());
-        note.modified = DateTime(2020, 1, 10 + (i * 2));
+        note.apply(
-        note.body = "$i\n";
+          modified: DateTime(2020, 1, 10 + (i * 2)),
+          body: "$i\n",
+        );
         await NoteStorage().save(note).throwOnError();
       }
       await folder.loadRecursively();
@@ -76,7 +78,7 @@ void main() {
       );
 
       var i = sf.notes.indexWhere((n) => n.body == "1\n");
-      sf.notes[i].modified = DateTime(2020, 2, 1);
+      sf.notes[i].apply(modified: DateTime(2020, 2, 1));
 
       expect(sf.notes[0].body, "1\n");
       expect(sf.notes[1].body, "4\n");
@@ -96,8 +98,10 @@ void main() {
           Note(folder, p.join(folder.folderPath, "new.md"), DateTime.now());
       folder.add(note);
 
-      note.modified = DateTime(2020, 2, 1);
+      note.apply(
-      note.body = "new\n";
+        modified: DateTime(2020, 2, 1),
+        body: "new\n",
+      );
       await NoteStorage().save(note).throwOnError();
 
       expect(sf.notes.length, 6);
@@ -121,8 +125,10 @@ void main() {
           Note(folder, p.join(folder.folderPath, "new.md"), DateTime.now());
       folder.add(note);
 
-      note.modified = DateTime(2020, 1, 1);
+      note.apply(
-      note.body = "new\n";
+        modified: DateTime(2020, 1, 1),
+        body: "new\n",
+      );
       await NoteStorage().save(note).throwOnError();
 
       expect(sf.notes.length, 6);

test/sorting_mode_test.dart

@@ -24,16 +24,13 @@ void main() {
     test('Created', () async {
       var folder = NotesFolderFS(null, '/tmp/', config);
       var n1 = Note(folder, '/tmp/1.md', DateTime.now());
-      n1.created = DateTime(2020, 10, 01);
+      n1.apply(created: DateTime(2020, 10, 01));
 
       var n2 = Note(folder, '/tmp/2.md', DateTime.now());
-      n2.created = DateTime(2020, 10, 02);
+      n2.apply(created: DateTime(2020, 10, 02));
 
       var n3 = Note(folder, '/tmp/3.md', DateTime.now());
-      n3.created = null;
-
       var n4 = Note(folder, '/tmp/4.md', DateTime.now());
-      n4.created = null;
 
       var notes = [n1, n2, n3, n4];
       var sortFn = SortingMode(SortingField.Created, SortingOrder.Descending)
@@ -49,16 +46,13 @@ void main() {
     test('Modified', () async {
       var folder = NotesFolderFS(null, '/tmp/', config);
       var n1 = Note(folder, '/tmp/1.md', DateTime.now());
-      n1.modified = DateTime(2020, 10, 01);
+      n1.apply(modified: DateTime(2020, 10, 01));
 
       var n2 = Note(folder, '/tmp/2.md', DateTime.now());
-      n2.modified = DateTime(2020, 10, 02);
+      n2.apply(modified: DateTime(2020, 10, 02));
 
       var n3 = Note(folder, '/tmp/3.md', DateTime.now());
-      n3.modified = null;
-
       var n4 = Note(folder, '/tmp/4.md', DateTime.now());
-      n4.modified = null;
 
       var notes = [n1, n2, n3, n4];
       var sortFn = SortingMode(SortingField.Modified, SortingOrder.Descending)