# CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

## Project Overview

XP Nix is a productivity tracking and gamification system designed for Linux desktop environments, supporting both
Hyprland and Sway window managers. It transforms daily computer usage into a gamified experience by monitoring
activity patterns and providing real-time feedback through an XP (experience points) system.

### Window Manager Support

**Hyprland**: Full feature support including visual desktop enhancements, idle monitoring, and activity detection
**Sway**: Core functionality with idle monitoring and activity detection (visual enhancements disabled by design)
**Detection**: Automatic runtime detection via environment variables (`HYPRLAND_INSTANCE_SIGNATURE`, `SWAYSOCK`)

## Commands

### Development
- `dart run bin/xp_nix.dart` - Run the main application server
- `dart run bin/xp_nix.dart --help` - Show command line options
- `dart run bin/xp_nix.dart --db custom.db --port 8081` - Run with custom database and port
- `dart test` - Run all tests
- `dart test test/specific_test.dart` - Run a specific test file
- `dart analyze` - Run static analysis and linting
- `dart pub get` - Install dependencies

### Interactive Commands (while running)
Once the server is running, these commands are available in the terminal:
- `stats` - Show current productivity stats
- `test [level]` - Test theme for specific level
- `restore` - Restore desktop backup
- `refresh` - Refresh base config from current system config  
- `build` - Build Flutter dashboard and copy to static files
- `help` - Show available commands

### Nix Environment
This project uses Nix flakes for development environment management. The flake provides Dart SDK and SQLite with proper library paths configured:
- `nix develop` - Enter development environment with Dart and SQLite

## Architecture Overview

### Core Components

**ProductivityMonitor** (`lib/src/monitors/productivity_monitor.dart`) - Central orchestrator that:
- Coordinates activity detection, idle monitoring, and desktop enhancement
- Calculates XP rewards based on activity types and time multipliers
- Manages level progression and achievement system
- Supports both event-driven (via IActivityDetector) and legacy polling modes
- Broadcasts updates via WebSocket for real-time dashboard updates

**DashboardServer** (`lib/src/web/dashboard_server.dart`) - Web server providing:
- RESTful API endpoints for stats, achievements, activities, and configuration
- Real-time WebSocket connections for live updates
- Serves Flutter-built dashboard from static files
- Configurable port (default: 8080)

**DatabaseManager** (`lib/src/database/database_manager.dart`) - SQLite database operations for:
- Daily stats tracking (XP, focus time, meeting time, level)
- Activity events with duration and metadata
- Application classifications (user-defined)
- Achievements and focus sessions
- Theme change history and streak tracking

### Dependency Injection & Testing

The codebase uses dependency injection through interfaces to enable both production and testing modes:

**Interfaces** (`lib/src/interfaces/`):
- `IActivityDetector` - Window/application activity detection
- `IIdleMonitor` - User idle state monitoring  
- `IDesktopEnhancer` - Desktop theme/visual enhancements
- `ITimeProvider` - Time operations (for testing time manipulation)
- `IWindowManager` - Window manager operations abstraction

**Hyprland Implementations**:
- `HyprlandActivityDetector` - Uses `hyprctl activewindow` for activity detection
- `IdleMonitor` - Uses `hypridle` for idle state monitoring
- `HyprlandEnhancer` - Full desktop theming and visual enhancements
- `HyprlandManager` - Window manager operations via `hyprctl`

**Sway Implementations**:
- `SwayActivityDetector` - Uses `swaymsg -t get_tree` for activity detection
- `SwayIdleMonitor` - Uses `swayidle` for idle state monitoring
- `SwayEnhancer` - Notifications-only enhancer (no visual changes)
- `SwayManager` - Window manager operations via `swaymsg`

**Factory Classes** (`lib/src/factories/`):
- `IdleMonitorFactory` - Creates appropriate idle monitor for detected window manager
- `ActivityDetectorFactory` - Creates appropriate activity detector for detected window manager
- `DesktopEnhancerFactory` - Creates appropriate enhancer for detected window manager
- `WindowManagerFactory` - Creates appropriate window manager interface

**Test Mocks** (`lib/src/testing/`):
- `MockActivityDetector` - Controllable activity simulation
- `MockIdleMonitor` - Controllable idle state simulation
- `MockDesktopEnhancer` - No-op desktop enhancement for testing
- `MockTimeProvider` - Controllable time for testing
- `MockWindowManagerDetector` - Test scenarios for different window managers

### Activity Classification System

**ActivityEventType** enum categorizes activities:
- `coding` - Development work (10 XP/min base)
- `focusedBrowsing` - Research and documentation (6 XP/min base)
- `collaboration` - Team communication (7 XP/min base)
- `meetings` - Video conferences and calls (3 XP/min base)
- `misc` - General productivity (2 XP/min base)
- `uncategorized` - Unknown activities (1 XP/min base)

**Classification Logic**:
- Uses user-defined application classifications stored in database
- Fallback categorization based on application names and window titles
- Tracks unclassified applications for manual categorization

### XP & Gamification System

**XP Calculation**:
- Base XP per minute varies by activity type
- Time-based multipliers from configuration:
  - Deep work hours (1.5x): 09:00-11:00, 14:00-16:00
  - Late night penalty (0.8x): 22:00-06:00
- Focus session bonuses: 60min (+100 XP), 120min (+200 XP), 180min (+500 XP)

**Level System**:
- 100 XP per level progression
- Visual desktop themes applied at different levels
- Achievement system with level, focus, and session-based rewards

**Achievements**:
- Level-based: Rising Star (L5), Productivity Warrior (L10), Focus Master (L15), Legendary Achiever (L25)
- Focus-based: Deep Focus (4h), Focus Titan (8h)
- Session-based: Session Master (5+ sessions)
- Meeting-based: Communication Pro (3h meetings)

### Configuration Management

**ConfigManager** (`lib/src/config/config_manager.dart`):
- Loads from `config/xp_config.json`
- Manages XP multipliers, achievement definitions, focus bonuses
- Supports runtime configuration updates via web API

**Key Configuration Sections**:
- `xp_rewards` - Base multipliers and time-based modifiers
- `achievements` - Achievement definitions and rewards
- `level_system` - XP per level and max level
- `monitoring` - Polling intervals and thresholds
- `logging` - Log levels and file management

### Web Dashboard & API

**Dashboard Features**:
- Real-time stats display with WebSocket updates
- Activity timeline and XP breakdown charts
- Achievement gallery and progress tracking
- Application classification management
- Configuration editor
- Log viewer with filtering

**API Endpoints**:
- `GET /api/stats` - Current day statistics
- `GET /api/stats/history?days=7` - Historical stats
- `GET /api/achievements` - All achievements
- `GET /api/activities?limit=100` - Recent activities
- `GET /api/focus-sessions` - Focus session history
- `GET /api/xp-breakdown` - XP breakdown by activity type
- `GET /api/classifications` - Application classifications
- `POST /api/classifications` - Save application classification
- `GET /api/config` - Current configuration
- `POST /api/config` - Update configuration

**WebSocket Events**:
- `level_up` - Level progression notifications
- `achievement_unlocked` - Achievement notifications
- `stats_update` - Real-time stats updates
- `xp_breakdown_update` - XP distribution updates
- `focus_session_complete` - Focus session completions

### Flutter Dashboard Build System

**DashboardBuilder** (`lib/src/build/dashboard_builder.dart`):
- Builds Flutter dashboard from `../xp_dashboard` directory
- Copies built web files to `lib/src/web/static/`
- Accessible via `build` command while server is running
- Requires Flutter to be available in system PATH

## Testing Strategy

### Test Structure
- **Unit Tests**: Individual component testing with mocks
- **Integration Tests**: WebSocket and database integration
- **Simulation Tests**: Complete work day scenarios
- **Configuration Tests**: Hyprland config parsing

### Key Test Files
- `test/xp_nix_test.dart` - Main productivity monitor tests
- `test/websocket_integration_test.dart` - WebSocket functionality
- `test/simulation/` - Work day simulation scenarios
- `test/deep_idle_test.dart` - Idle detection edge cases
- `test/hyprland_config_parser_test.dart` - Configuration parsing
- `test/sway_integration_test.dart` - Sway window manager integration tests

### Testing Utilities
- `test/create_golden_db.dart` - Creates test database with sample data
- Time manipulation via `MockTimeProvider` for deterministic testing
- Activity simulation via `MockActivityDetector` for scenario testing

## System Requirements & Compatibility

### Window Manager Requirements

**Hyprland Environment**:
- `hyprctl` - Window management and querying
- `hypridle` - Idle detection and monitoring
- Environment: `$HYPRLAND_INSTANCE_SIGNATURE` must be set

**Sway Environment**:
- `swaymsg` - Window management and querying  
- `swayidle` - Idle detection and monitoring
- Environment: `$SWAYSOCK` must be set

**Optional Dependencies**:
- `notify-send` - Desktop notifications (both window managers)
- `mako` or `dunst` - Enhanced notification daemons (Sway)

### Feature Comparison

| Feature | Hyprland | Sway | Notes |
|---------|----------|------|-------|
| Activity Detection | ✅ | ✅ | Uses `hyprctl` vs `swaymsg` |
| Idle Monitoring | ✅ | ✅ | Uses `hypridle` vs `swayidle` |
| Visual Enhancements | ✅ | ❌ | Disabled by design for Sway |
| Desktop Theming | ✅ | ❌ | Config modifications disabled |
| Notifications | ✅ | ✅ | Level-up and achievement alerts |
| WebSocket API | ✅ | ✅ | Full dashboard functionality |
| Database Tracking | ✅ | ✅ | Identical functionality |

### Runtime Detection

The system automatically detects your window manager at startup:

1. **Environment Variables**: Checks `$HYPRLAND_INSTANCE_SIGNATURE` and `$SWAYSOCK`
2. **Process Detection**: Falls back to checking available commands
3. **Graceful Degradation**: Uses appropriate implementations or fallbacks

## Development Workflow

### Initial Setup
1. `dart pub get` - Install dependencies
2. `dart run bin/xp_nix.dart` - Start server (auto-detects window manager)
3. Visit `http://localhost:8080` for dashboard

### Making Changes
1. Run tests: `dart test`
2. Check analysis: `dart analyze`
3. Test with custom database: `dart run bin/xp_nix.dart --db test.db`
4. Build dashboard: Use `build` command at runtime command `flutter build web` in `../xp_dashboard`

### Configuration Changes
- Edit `config/xp_config.json` for XP rules and achievements
- Use `refresh` command to reload configuration
- Test theme changes with `test [level]` command
- Use `restore` command if desktop theme issues occur

## Roadmap Integration

The project roadmap includes ambitious enhancements:
- **Cursor-following XP numbers** - RPG-style floating damage numbers
- **Dual currency shop system** - XP points and real-world reward tokens
- **Enhanced celebrations** - Full-screen level-up animations
- **Environmental feedback** - Focus-based ambient changes
- **Real-world purchase integration** - Automated reward fulfillment

Current architecture supports these extensions through:
- Modular desktop enhancement system
- Extensible notification framework
- Configurable reward and achievement system
- Database schema designed for expansion
