geutebruck/geutebruck_app/STATUS.md

Geutebruck Flutter App - Development Status

Last Updated: 2025-12-23 Version: 0.1.0-alpha Development Phase: Phase 2 Complete (Server Management)

🎯 Project Overview

Flutter mobile application for managing Geutebruck surveillance systems, including G-Core and GeViScope servers, with offline-first architecture and bidirectional sync capabilities.

✅ Completed Features

Phase 1: Authentication & Foundation

• ✅ User Authentication

  • Login screen with username/password
  • JWT token-based authentication
  • Secure token storage with flutter_secure_storage
  • Automatic auth state management with BLoC
  • Auth guards on protected routes

• ✅ Architecture & Foundation

  • Clean Architecture (Domain/Data/Presentation layers)
  • BLoC state management
  • Dependency injection with GetIt
  • Go Router for navigation
  • Error handling with Either<Failure, T> pattern
  • Dio HTTP client with interceptors

Phase 2: Server Management (COMPLETE)

• ✅ View Servers (US-2.1)

  • List all servers (G-Core and GeViScope)
  • Filter by server type (All/G-Core/GeViScope)
  • Display server status (enabled/disabled)
  • Show dirty count badge for unsaved changes
  • Pull-to-refresh functionality

• ✅ Create Servers (US-2.5, US-2.6)

  • Create G-Core servers with all parameters
  • Create GeViScope servers with all parameters
  • Form validation
  • Dynamic server type selection
  • Offline creation with sync capability

• ✅ Update Servers (US-2.7)

  • Edit existing server configuration
  • Pre-populated form with current values
  • Proper state handling during updates
  • Success feedback with snackbar

• ✅ Delete Servers (US-2.8)

  • Delete confirmation dialog
  • Remove from local and remote
  • Dirty state tracking

• ✅ Offline-First Architecture

  • Hive local database for offline storage
  • Automatic dirty change tracking
  • Sync unsaved changes to server
  • Download latest configuration from server
  • Conflict resolution (server-wins strategy)

• ✅ Sync & Download

  • Upload dirty (modified) servers to API
  • Download all servers from API
  • Sync status indicators
  • Error handling for network failures

🐛 Recent Bug Fixes

2025-12-23: Fixed "No Data" Display Issue

Issue: After updating a server and clicking "Update Server", the servers list briefly showed "No data" instead of the updated server list.

Root Cause: The BlocBuilder in servers_management_screen.dart had a fallback case that displayed "No data" for any state that didn't match the explicit cases (ServerLoading, ServerLoaded, ServerError, etc.). During state transitions, the state could briefly be ServerInitial, causing "No data" to flash.

Solution: Changed the fallback case from displaying "No data" to showing a loading indicator (CircularProgressIndicator), providing better UX during state transitions.

Files Modified:

• lib/presentation/screens/servers/servers_management_screen.dart:268

Impact: Users now see a smooth loading experience instead of confusing "No data" messages when navigating between screens.

📊 Architecture Details

State Management Flow

User Action → BLoC Event → Use Case → Repository → Data Source
                ↓
         BLoC State ← Result ← Either<Failure, T>
                ↓
            UI Update

Offline-First Strategy

User Action
    ↓
Local Storage (Hive) ← Immediate Write
    ↓
Mark as Dirty
    ↓
User Triggers Sync → API Call → Update Local → Clear Dirty Flag

Shared State with ShellRoute

ShellRoute(
  builder: (context, state, child) => BlocProvider(
    create: (_) => ServerBloc()..add(LoadServers()),
    child: child,
  ),
  routes: [/servers, /servers/create, /servers/edit/:id]
)

This ensures a single ServerBloc instance is shared across all server-related screens.

🏗️ Technical Stack

Core Dependencies

• Flutter: ^3.5.0
• Dart: ^3.5.0
• flutter_bloc: ^8.1.3 - State management
• go_router: ^14.0.0 - Navigation
• hive/hive_flutter: ^2.3.7 - Local storage
• dio: ^5.4.0 - HTTP client
• get_it: ^7.6.4 - Dependency injection
• dartz: ^0.10.1 - Functional programming (Either, Option)
• equatable: ^2.0.5 - Value equality
• flutter_secure_storage: ^9.0.0 - Secure token storage

Dev Dependencies

• build_runner: ^2.4.6
• hive_generator: ^2.0.1
• very_good_analysis: ^5.1.0

📁 Project Structure

lib/
├── core/
│   ├── constants/         # API endpoints, app constants
│   ├── errors/           # Exceptions and failures
│   ├── network/          # Dio client, interceptors
│   └── utils/            # Helper functions
├── data/
│   ├── data_sources/
│   │   ├── local/        # Hive, secure storage
│   │   └── remote/       # API clients
│   ├── models/           # Data transfer objects
│   ├── repositories/     # Repository implementations
│   └── services/         # Sync service
├── domain/
│   ├── entities/         # Business objects
│   ├── repositories/     # Repository interfaces
│   └── use_cases/        # Business logic
└── presentation/
    ├── blocs/            # BLoC state management
    ├── screens/          # UI screens
    └── widgets/          # Reusable widgets

🔧 Configuration

API Endpoint

// lib/core/constants/api_constants.dart
static const String baseUrl = 'http://100.81.138.77:8000';

Authentication

• Username: admin
• Password: admin123
• Token storage: flutter_secure_storage (encrypted)

🚀 Running the Application

Development Server

cd geutebruck_app
flutter run -d web-server --web-port=8081 --web-hostname=0.0.0.0

Hot Reload

Press r in the Flutter terminal to hot reload changes

Build for Production

# Android
flutter build apk --release

# iOS
flutter build ipa --release

# Web
flutter build web --release

📋 Next Steps (Phase 3)

Action Mapping Management

• US-3.1: View all action mappings
• US-3.2: View action mapping details
• US-3.3: Create action mapping
• US-3.4: Update action mapping
• US-3.5: Delete action mapping

Camera Management (Phase 4)

• US-4.1: View all cameras
• US-4.2: View camera details
• US-4.3: PTZ camera control

Monitor & Cross-Switching (Phase 5)

• US-5.1: View monitors
• US-5.2: Monitor details
• US-6.1: Connect camera to monitor
• US-6.2: Clear monitor assignment

🧪 Testing

Current Test Coverage

• Unit tests: Pending
• Widget tests: Pending
• Integration tests: Pending

Testing Tools Available

• MCP Playwright server configured for browser automation
• Dart/Flutter MCP server configured for code analysis

📝 Known Issues

None at this time. The "No data" issue has been resolved.

🔗 Related Documentation

• API Spec: ../geutebruck-api/specs/001-surveillance-api/spec.md
• App Spec: ../geutebruck-api/specs/001-flutter-app/spec.md
• Tasks: ../geutebruck-api/specs/001-flutter-app/tasks.md
• OpenAPI Contract: ../geutebruck-api/specs/001-surveillance-api/contracts/openapi.yaml

👥 Development Team

This is an AI-assisted development project using Claude Code CLI with MCP servers for enhanced debugging and testing capabilities.

📅 Timeline

• 2025-12-21: Project initialization, Phase 1 (Auth) complete
• 2025-12-22: Phase 2 (Server Management) implementation
• 2025-12-23: Bug fixes, offline-first architecture, Phase 2 complete

🎯 Success Metrics

Phase 2 Completion Criteria ✅

• All server CRUD operations working
• Offline-first storage implemented
• Sync functionality operational
• State management working correctly
• UI responsive and bug-free
• Navigation flow smooth

Next Phase Criteria

• Action mapping CRUD operations
• Camera list and details view
• PTZ control interface
• Monitor management
• Cross-switching functionality