linked-panels/CHANGELOG.md

A powerful React library for building interconnected panel systems with advanced state management, inter-panel communication, and flexible persistence.

# Changelog

All notable changes to the Linked Panels library will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [1.0.0] - 2024-01-21

### 🎉 Initial Release

The first stable release of the Linked Panels library, providing a complete solution for building interconnected panel systems.

#### ✨ Added

**Core Components**
- `LinkedPanelsContainer` - Root container for managing panel systems
- `LinkedPanel` - Individual panel component with navigation and state
- `useResourceAPI` - Hook for resource-level state and messaging
- `useLinkedPanelsStore` - Hook for global state access

**State Management**
- Zustand + Immer-based reactive state management
- Selective re-rendering for optimal performance
- Type-safe state subscriptions and updates
- Automatic cleanup of unused state

**Messaging System**
- Type-safe inter-panel communication
- Three message lifecycles: `event`, `state`, `command`
- Message filtering and querying utilities
- Automatic message delivery and history

**Persistence Framework**
- Pluggable storage adapter architecture
- Automatic state saving and restoration
- Configurable TTL and cleanup strategies
- Message filtering for persistence

**Storage Adapters**
- `LocalStorageAdapter` - Browser localStorage support
- `SessionStorageAdapter` - Browser sessionStorage support  
- `MemoryStorageAdapter` - In-memory storage for testing
- `IndexedDBAdapter` - Robust browser database storage
- `HTTPStorageAdapter` - Server-side API storage
- `AsyncStorageAdapter` - React Native AsyncStorage support

**Plugin System**
- Extensible messaging with custom message types
- Plugin registry for managing extensions
- Built-in message validation and handling
- Type safety for custom message content

**TypeScript Support**
- Complete type safety throughout the library
- Generic types for custom message content
- Comprehensive type definitions
- IntelliSense support for all APIs

**Testing Utilities**
- `createTestEnvironment` - Testing helper
- Memory storage adapter for tests
- Mock implementations for CI/CD

#### 📚 Documentation

- Comprehensive README with quick start guide
- Complete API reference documentation
- Getting started tutorial with examples
- Use case guides for common applications:
  - Document Management Systems
  - Data Dashboards and Analytics
  - Educational Platforms
  - Collaborative Workflows
- Advanced topics covering:
  - Performance optimization
  - Testing strategies
  - Plugin development
  - Custom storage adapters

#### 🎯 Use Cases Covered

**Document Management**
- Synchronized document viewers
- Annotation and comment systems
- Version comparison tools
- Real-time collaborative editing
- Multi-format document support

**Data Analytics**
- Synchronized chart filtering
- Cross-panel drill-down navigation
- Real-time data updates
- Interactive data exploration
- Export and sharing capabilities

**Educational Platforms**
- Multi-language learning interfaces
- Progress tracking and resumption
- Interactive exercises and quizzes
- Synchronized content and resources
- Offline-capable mobile apps

**Collaborative Applications**
- Real-time synchronized workspaces
- Team-based editing workflows
- Notification and messaging systems
- Role-based access controls
- Activity tracking and history

#### 🚀 Performance Features

- Selective component re-rendering
- Efficient state subscriptions
- Lazy loading support
- Memory management and cleanup
- Bundle size optimization
- Tree-shaking compatibility

#### 🔧 Developer Experience

- Hot module replacement support
- Comprehensive error boundaries
- Detailed error messages and logging
- React DevTools integration
- Vite and Webpack compatibility
- ESM and CommonJS support

#### 📦 Package Management

- npm package with proper exports
- TypeScript declarations included
- Peer dependency management
- Optional dependencies for platform-specific features
- Proper semantic versioning

#### 🧪 Quality Assurance

- Comprehensive test suite
- Type checking with TypeScript
- ESLint code quality checks
- Automated CI/CD pipeline
- Cross-browser compatibility testing
- React 18+ concurrent features support

### 🎨 Examples Included

**Basic Panel System**
```tsx
import { LinkedPanelsContainer, LinkedPanel } from 'linked-panels';

function App() {
  return (
    <LinkedPanelsContainer config={config}>
      <LinkedPanel id="main">
        {({ current, navigate }) => (
          <div>{current.resource?.component}</div>
        )}
      </LinkedPanel>
    </LinkedPanelsContainer>
  );
}
```

**Advanced Dashboard**
```tsx
function Dashboard() {
  const persistenceOptions = {
    storageAdapter: new IndexedDBAdapter(),
    autoSave: true,
    stateTTL: 7 * 24 * 60 * 60 * 1000 // 7 days
  };

  return (
    <LinkedPanelsContainer 
      config={config} 
      persistence={persistenceOptions}
    >
      {/* Panel implementation */}
    </LinkedPanelsContainer>
  );
}
```

**Custom Plugin**
```tsx
const customPlugin = createPlugin({
  name: 'analytics',
  messageTypes: { 'track-event': TrackEventMessage },
  handlers: { 'track-event': trackAnalyticsEvent }
});
```

### 🔮 Future Roadmap

While this initial release provides a comprehensive foundation, future versions will include:

- Visual panel layout editor
- Drag-and-drop panel arrangement
- Advanced animation and transitions
- Server-side rendering (SSR) support
- React Native optimizations
- Additional storage adapters
- Performance monitoring tools
- Advanced debugging utilities

### 📈 Migration Path

This is the initial stable release. Future versions will maintain backward compatibility and provide clear migration guides for any breaking changes.

### 🙏 Acknowledgments

Special thanks to:
- The React team for the amazing framework
- Zustand for excellent state management
- The TypeScript team for type safety
- The open source community for inspiration and feedback

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**Full Changelog**: https://github.com/bt-toolkit/bt-toolkit/releases/tag/v1.0.0