db part

lib/db/note_db.dart

@@ -0,0 +1,8 @@
+import 'package:note_app/models/note_data_model.dart';
+
+abstract class NotesDb {
+  Future<List<NotesModel>> getAllNotes();
+  Future<bool> createNote(NotesModel notesModel);
+  Future<bool> updateNote(NotesModel notesModel);
+  Future<bool> deleteNote(NotesModel notesModel);
+}

lib/db/note_db_impl.dart

@@ -0,0 +1,42 @@
+import 'package:hive/hive.dart';
+import 'package:note_app/db/note_db.dart';
+import 'package:note_app/models/note_data_model.dart';
+
+class NotesDbImpl implements NotesDb {
+  Box<NotesModel> db;
+
+  NotesDbImpl(this.db);
+
+  @override
+  Future<bool> createNote(NotesModel notesModel) async {
+    int result = await db.add(notesModel);
+    return true;
+  }
+
+  @override
+  Future<bool> deleteNote(NotesModel notesModel) async {
+    int currentIndex = -1;
+    for (int i = 0; i < db.length; i++) {
+      if (db.values.elementAt(i).id == notesModel.id) {
+        currentIndex = i;
+      }
+    }
+    await db.deleteAt(currentIndex);
+    return true;
+  }
+
+  @override
+  Future<List<NotesModel>> getAllNotes() async {
+    return db.values.toList();
+  }
+
+  @override
+  Future<bool> updateNote(NotesModel notesModel) async {
+    for (int i = 0; i < db.length; i++) {
+      if (db.values.elementAt(i).id == notesModel.id) {
+        await db.putAt(i, notesModel);
+      }
+    }
+    return true;
+  }
+}

lib/main.dart

@@ -1,6 +1,13 @@
 import 'package:flutter/material.dart';
+import 'package:hive_flutter/hive_flutter.dart';
+import 'package:note_app/models/note_data_model.dart';
+
+Future<void> main() async {
+    await Hive.initFlutter();
+    //  Hive.registerAdapter(NotesModelAdapter());
+
+  await Hive.openBox<NotesModel>("noteBox");
 
-void main() {
   runApp(const MainApp());
 }
 
@@ -9,12 +16,15 @@ class MainApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return const MaterialApp(
-      home: Scaffold(
-        body: Center(
-          child: Text('Hello World!'),
-        ),
-      ),
-    );
+    return HomeScreen();
+  }
+}
+
+class HomeScreen extends StatelessWidget {
+  const HomeScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Placeholder();
   }
 }

lib/models/note_data_model.dart

@@ -0,0 +1,24 @@
+import 'package:hive/hive.dart';
+// part 'note_data_model.g.dart';
+
+@HiveType(typeId: 0)
+class NotesModel {
+  @HiveField(0)
+  String? id;
+
+  @HiveField(1)
+  String? title;
+
+  @HiveField(2)
+  String? content;
+
+  @HiveField(3)
+  DateTime? date;
+
+  NotesModel({
+    required this.title,
+    required this.id,
+    required this.content,
+    required this.date,
+  });
+}

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -5,6 +5,8 @@
 import FlutterMacOS
 import Foundation
 
+import path_provider_foundation
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
 }