adding shared prefs to save the users name

TODO.md

@@ -9,11 +9,27 @@
 - [x] Implement proper state management with LiveData/StateFlow
 - [x] Add ViewModelFactory if needed
 
-### 1.2 Dependency Injection with Hilt
-- [ ] Add Hilt dependencies
-- [ ] Set up Hilt modules for WifiAwareManager
-- [ ] Convert singletons to proper DI
-- [ ] Inject ViewModels using Hilt
+### 1.2 Dependency Injection with Hilt ✅
+- [x] Add Hilt dependencies
+- [x] Set up Hilt modules for WifiAwareManager
+- [x] Convert singletons to proper DI
+- [x] Inject ViewModels using Hilt
+
+### 1.3 Room Database Setup
+- [ ] Add Room dependencies
+- [ ] Create Message and User entities
+- [ ] Implement DAOs for data access
+- [ ] Create database migrations
+- [ ] Store messages in Room database
+- [ ] Load message history on app restart
+- [ ] Implement message sync logic
+
+### 1.4 Coroutines & Flow Optimization
+- [ ] Convert callbacks to coroutines
+- [ ] Use Flow for reactive data streams
+- [ ] Implement proper scope management
+- [ ] Replace GlobalScope with proper lifecycle scopes
+- [ ] Add proper error handling with coroutines
 
 ## Phase 2: Core UX Improvements
 
@@ -29,19 +45,50 @@
 - [ ] Handle user join/leave events
 - [ ] Show user count in chat header
 
-## Phase 3: Data Persistence
+### 2.3 Enhanced Messaging Features
+- [ ] Message status indicators (sent/delivered/read)
+- [ ] User presence indicators (online/offline/typing)
+- [ ] Message timestamps with proper formatting
+- [ ] Offline message queue
+- [ ] Message retry mechanism
+- [ ] Long press message actions (copy, delete)
 
-### 3.1 Room Database Setup
-- [ ] Add Room dependencies
-- [ ] Create Message and User entities
-- [ ] Implement DAOs for data access
-- [ ] Create database migrations
+### 2.4 File & Media Sharing
+- [ ] Image sharing support
+- [ ] File transfer capability
+- [ ] Image preview in chat
+- [ ] Progress indicators for transfers
+- [ ] File size limits and validation
 
-### 3.2 Message Persistence
-- [ ] Store messages in Room database
-- [ ] Load message history on app restart
-- [ ] Implement message sync logic
-- [ ] Add message timestamps
+## Phase 3: UI/UX Improvements
+
+### 3.1 Material 3 Design Update
+- [ ] Migrate to Material 3 components
+- [ ] Implement dynamic color theming
+- [ ] Update typography and spacing
+- [ ] Add proper elevation and shadows
+- [ ] Implement Material You design principles
+
+### 3.2 Dark Theme & Theming
+- [ ] Implement dark theme
+- [ ] Add theme toggle in settings
+- [ ] System theme detection
+- [ ] Custom color schemes
+- [ ] Persist theme preference
+
+### 3.3 Animations & Polish
+- [ ] Message send/receive animations
+- [ ] Screen transition animations
+- [ ] Loading state animations
+- [ ] Smooth scrolling improvements
+- [ ] Haptic feedback
+
+### 3.4 Better Error Handling UI
+- [ ] User-friendly error messages
+- [ ] Retry mechanisms with UI feedback
+- [ ] Connection lost/restored snackbars
+- [ ] Empty states for no messages/users
+- [ ] Inline error states
 
 ## Phase 4: Reliability Improvements
 
@@ -56,26 +103,78 @@
 - [ ] Handle app lifecycle properly
 - [ ] Save and restore connection state
 
-## Phase 5: Advanced Features
+## Phase 5: Security & Privacy
 
-### 5.1 Background Service
+### 5.1 Message Encryption
+- [ ] End-to-end encryption implementation
+- [ ] Key exchange protocol
+- [ ] Message integrity verification
+- [ ] Secure key storage
+- [ ] Forward secrecy
+
+### 5.2 Privacy Features
+- [ ] Optional username anonymization
+- [ ] Message auto-deletion
+- [ ] Block/unblock users
+- [ ] Private rooms with passwords
+- [ ] Data export/import
+
+## Phase 6: Advanced Features
+
+### 6.1 Background Service
 - [ ] Create foreground service for persistent connection
 - [ ] Handle Doze mode and battery optimization
 - [ ] Add notification for active chat
 - [ ] Implement proper service lifecycle
+- [ ] Wake lock management
 
-### 5.2 Additional Features
-- [ ] Message delivery status
-- [ ] Typing indicators
-- [ ] File/image sharing support
-- [ ] Message encryption improvements
+### 6.2 Settings & Preferences
+- [ ] Create settings screen
+- [ ] Notification preferences
+- [ ] Sound/vibration settings
+- [ ] Auto-reconnect toggle
+- [ ] Message history limits
+
+## Phase 7: Testing & Quality
+
+### 7.1 Unit Testing
+- [ ] Test ViewModels
+- [ ] Test Repository logic
+- [ ] Test data transformations
+- [ ] Test error scenarios
+- [ ] Mock dependencies with Hilt testing
+
+### 7.2 Integration Testing
+- [ ] Test database operations
+- [ ] Test network layer
+- [ ] Test complete user flows
+- [ ] Test state persistence
+
+### 7.3 UI Testing
+- [ ] Espresso tests for main flows
+- [ ] Test navigation
+- [ ] Test user interactions
+- [ ] Screenshot testing
+- [ ] Accessibility testing
 
 ## Current Status
 - ✅ Phase 1.1 - MVVM Architecture - COMPLETED
+- ✅ Phase 1.2 - Dependency Injection with Hilt - COMPLETED
 - ✅ Phase 2.1 - Connection Status Management - COMPLETED
-- 🚀 Next: Phase 1.2 (Dependency Injection) or Phase 3 (Data Persistence)
+- 🚀 Next Priority Options:
+  - Phase 1.3 - Room Database (Foundation for persistence)
+  - Phase 2.2 - User List Feature (Core UX)
+  - Phase 2.3 - Enhanced Messaging (Better UX)
+  - Phase 3.1 - Material 3 Update (Modern UI)
 
 ## Completed Work Summary
 1. **MVVM Architecture**: ViewModels, Repository pattern, proper separation of concerns
-2. **Connection Status**: Visual indicator with real-time updates, activity-based detection
-3. **Sleep/Wake Handling**: Auto-recovery when messages resume after device sleep
+2. **Dependency Injection**: Hilt integration with proper scoping and lifecycle management
+3. **Connection Status**: Visual indicator with real-time updates, activity-based detection
+4. **Sleep/Wake Handling**: Auto-recovery when messages resume after device sleep
+
+## Development Notes
+- Architecture foundation (Phase 1) should be completed before moving to advanced features
+- UI/UX improvements (Phase 3) can be done in parallel with feature development
+- Testing (Phase 7) should be implemented incrementally as features are added
+- Security features (Phase 5) are important for production readiness