documentation updated

README.md

@@ -11,22 +11,19 @@
 
 📚 **Documentation**: Visit our [documentation site](https://quantadb.netlify.app/) for detailed guides and API references.
 
-A high-performance pure Dart local database implementation using LSM-Tree architecture. QuantaDB is designed to provide a fast, reliable, and easy-to-use data storage solution for both Flutter applications and pure Dart projects.
+A high-performance, type-safe NoSQL database for Dart and Flutter applications.
 
 <p align="center">
   <img src="https://raw.githubusercontent.com/champ96k/quanta_db/master/logo.png" alt="QuantaDB Logo" width="400"/>
 </p>
 
 ## Features
 
-- 🚀 **High Performance**: LSM-Tree based storage engine optimized for speed
-- 🔒 **Data Security**: Built-in encryption support for sensitive data
-- 📊 **Advanced Indexing**: Support for single, composite, and unique indexes
-- 🔄 **Real-time Updates**: Reactive queries with change notifications
-- 🎯 **Type Safety**: Strong typing with code generation
-- 📱 **Cross-Platform**: Works on all platforms supported by Dart/Flutter
-- 🔍 **Query Engine**: Powerful query capabilities with filtering and sorting
-- 🔄 **Transaction Support**: ACID compliant transactions
+- 🚀 **Performance**: Optimized for speed with LSM-Tree storage
+- 🔒 **Type Safety**: Compile-time type checking and validation
+- 🔄 **Reactive**: Real-time data synchronization
+- 📊 **Query Engine**: Powerful querying capabilities
+- 🔄 **Transactions**: ACID-compliant transactions
 - 📈 **Scalability**: Efficient handling of large datasets
 - 🛠 **Developer Experience**: Annotation-driven code generation
 - 🔄 **Schema Migrations**: Automatic schema version management
@@ -73,15 +70,15 @@ void main() async {
     User({required this.id, required this.name, required this.email});
   }
 
-  // Create a DAO
-  final userDao = UserDao(db);
-
   // Insert data
   final user = User(id: '1', name: 'John', email: 'john@example.com');
-  await userDao.insert(user);
+  await db.put('user:1', user);
 
   // Query data
-  final users = await userDao.getAll();
+  final queryEngine = QueryEngine(db.storage);
+  final users = await queryEngine.query<User>(
+    Query<User>().where((user) => user.name.startsWith('J'))
+  );
   print('Users: $users');
 
   // Close the database
@@ -196,9 +193,12 @@ final String name;
 final DateTime lastLogin;
 
 // Watch for changes
-final stream = userDao.watchLastLogin(user);
-await for (final lastLogin in stream) {
-  print('User logged in at: $lastLogin');
+final queryEngine = QueryEngine(db.storage);
+final stream = queryEngine.watch<User, User>(
+  Query<User>().where((user) => user.lastLogin != null)
+);
+await for (final user in stream) {
+  print('User logged in at: ${user.lastLogin}');
 }
 ```
 

documentation/docs/features/id-generation.md

@@ -97,7 +97,6 @@ This will generate IDs like: `usr_1647123456789`
 ```dart
 void main() async {
   final db = await QuantaDB.open('my_database');
-  final userDao = UserDao(db);
 
   // Create user with auto-generated ID
   final user = User(
@@ -106,7 +105,7 @@ void main() async {
     email: 'john@example.com'
   );
 
-  await userDao.insert(user);
+  await db.put('user:1', user);
   print('Created user with ID: ${user.id}');
 
   // Create user with manual ID
@@ -116,8 +115,15 @@ void main() async {
     email: 'jane@example.com'
   );
 
-  await userDao.insert(user2);
+  await db.put('user:2', user2);
   print('Created user with ID: ${user2.id}');
+
+  // Query users
+  final queryEngine = QueryEngine(db.storage);
+  final users = await queryEngine.query<User>(
+    Query<User>()
+  );
+  print('Total users: ${users.length}');
 }
 ```
 

documentation/docs/features/type-safety.md

@@ -92,7 +92,7 @@ class User {
 // Type-safe operations
 void main() async {
   final db = await QuantaDB.open('my_database');
-  final userDao = UserDao(db);
+  final queryEngine = QueryEngine(db.storage);
 
   // Create user with auto-generated ID
   final user = User(
@@ -101,8 +101,14 @@ void main() async {
     age: 30
   );
 
-  await userDao.insert(user);
+  await db.put('user:1', user);
   print('Created user with ID: ${user.id}');
+
+  // Query users
+  final users = await queryEngine.query<User>(
+    Query<User>().where((user) => user.age > 25)
+  );
+  print('Found ${users.length} users over 25');
 }
 ```
 

documentation/docs/intro.md

@@ -88,15 +88,15 @@ void main() async {
     User({required this.id, required this.name, required this.email});
   }
 
-  // Create a DAO
-  final userDao = UserDao(db);
-
   // Insert data
   final user = User(id: '1', name: 'John', email: 'john@example.com');
-  await userDao.insert(user);
+  await db.put('user:1', user);
 
   // Query data
-  final users = await userDao.getAll();
+  final queryEngine = QueryEngine(db.storage);
+  final users = await queryEngine.query<User>(
+    Query<User>().where((user) => user.name.startsWith('J'))
+  );
   print('Users: $users');
 
   // Close the database

documentation/docs/usage.md

@@ -77,12 +77,9 @@ class User {
 }
 ```
 
-### Using the Generated DAO
+### Using Models with QuantaDB
 
 ```dart
-// Get the DAO
-final userDao = UserDao(db);
-
 // Create a user
 final user = User(
   id: '1',
@@ -92,68 +89,80 @@ final user = User(
 );
 
 // Insert the user
-await userDao.insert(user);
+await db.put('user:1', user);
 
 // Find by ID
-final found = await userDao.findById('1');
-
-// Find by email (using index)
-final byEmail = await userDao.findByEmail('john@example.com');
+final found = await db.get<User>('user:1');
 
 // Update user
-user.name = 'John Updated';
-await userDao.update(user);
+final updatedUser = User(
+  id: '1',
+  name: 'John Updated',
+  email: 'john@example.com',
+  age: 31
+);
+await db.put('user:1', updatedUser);
 
 // Delete user
-await userDao.delete('1');
+await db.delete('user:1');
 ```
 
 ## Transactions
 
 ```dart
-await db.transaction(() async {
+await db.storage.transaction((txn) async {
   // Create user
   final user = User(
     id: '1',
     name: 'John',
     email: 'john@example.com',
     age: 30
   );
-  await userDao.insert(user);
+  await txn.put('user:1', user);
 
   // Create profile
   final profile = Profile(
     userId: user.id,
     bio: 'Software Developer'
   );
-  await profileDao.insert(profile);
+  await txn.put('profile:1', profile);
 });
 ```
 
 ## Queries
 
 ```dart
+// Create a query engine
+final queryEngine = QueryEngine(db.storage);
+
 // Find all users
-final allUsers = await userDao.getAll();
+final allUsers = await queryEngine.query<User>(
+  Query<User>()
+);
 
 // Find users by age
-final youngUsers = await userDao.findByAge(30);
+final youngUsers = await queryEngine.query<User>(
+  Query<User>().where((user) => user.age < 30)
+);
 
 // Complex query
-final results = await userDao.query()
-  .where('age').greaterThan(18)
-  .and('name').startsWith('J')
-  .orderBy('age', descending: true)
-  .limit(10)
-  .execute();
+final results = await queryEngine.query<User>(
+  Query<User>()
+    .where((user) => user.age > 18)
+    .where((user) => user.name.startsWith('J'))
+    .sortBy((user) => user.age)
+    .take(10)
+);
 ```
 
 ## Real-time Updates
 
 ```dart
 // Subscribe to changes
-final subscription = userDao.watch().listen((event) {
-  print('User changed: ${event.data}');
+final subscription = queryEngine.watch<User, User>(
+  Query<User>().where((user) => user.isActive)
+).listen((user) {
+  print('User changed: ${user.name}');
 });
 
 // Later, unsubscribe
@@ -179,7 +188,7 @@ subscription.cancel();
 
 4. **Code Organization**
    - Keep models in separate files
-   - Use DAOs for data access
+   - Use proper key naming conventions
    - Implement proper separation of concerns
 
 ## Tips