path: root/docs/IMPLEMENTATION_STATUS.md

# SRDWM Implementation Status

## Overview
This document provides a comprehensive overview of the current implementation status of SRDWM, including completed features, in-progress work, and next steps.

## ✅ **Completed Features**

### 1. **Lua Configuration System**
- **Status**: ✅ **FULLY IMPLEMENTED**
- **Files**: 
  - `src/config/lua_manager.h/cc` - Complete Lua integration
  - `config/srd/*.lua` - Example configuration files
  - `docs/DEFAULTS.md` - Complete default configuration reference
- **Features**:
  - Full Lua 5.4+ integration with C++
  - Complete `srd` module API
  - Configuration loading from `srd/*.lua` files
  - Key binding system
  - Layout configuration
  - Theme management
  - Window rules
  - Configuration validation and reset
  - Error handling and logging

### 2. **Platform Architecture Design**
- **Status**: ✅ **FULLY DESIGNED**
- **Files**: 
  - `docs/PLATFORM_IMPLEMENTATION.md` - Complete platform guide
  - `src/platform/platform.h` - Platform abstraction interface
  - `src/platform/platform_factory.h/cc` - Platform factory implementation
- **Features**:
  - Proper separation of X11 vs Wayland (no mixing!)
  - Platform detection and selection
  - Cross-platform abstraction layer
  - Automatic platform detection

### 3. **Build System**
- **Status**: ✅ **FULLY IMPLEMENTED**
- **Files**: 
  - `CMakeLists.txt` - Complete build configuration
- **Features**:
  - Platform-specific dependency management
  - Lua integration
  - Conditional compilation for different platforms
  - Proper include and library paths

### 4. **Documentation**
- **Status**: ✅ **COMPREHENSIVE**
- **Files**:
  - `docs/DEFAULTS.md` - Complete configuration reference
  - `docs/GUI_SETTINGS.md` - GUI settings program design
  - `docs/PLATFORM_IMPLEMENTATION.md` - Platform implementation guide
  - `docs/IMPLEMENTATION_STATUS.md` - This status document

## 🔄 **In Progress**

### 1. **Platform-Specific Implementations**
- **Status**: 🔄 **HEADERS CREATED, IMPLEMENTATION IN PROGRESS**
- **Files**:
  - `src/platform/x11_platform.h` - X11 platform header ✅
  - `src/platform/wayland_platform.h` - Wayland platform header ✅
  - `src/platform/windows_platform.h` - Windows platform header ✅
  - `src/platform/macos_platform.h` - macOS platform header ✅
- **Progress**: Headers and interfaces defined, implementation needed

### 2. **Core Window Management**
- **Status**: 🔄 **INTERFACES DEFINED, IMPLEMENTATION NEEDED**
- **Files**:
  - `src/core/window.h/cc` - Window class interface ✅
  - `src/core/window_manager.h/cc` - Window manager interface ✅
  - `src/layouts/layout_engine.h/cc` - Layout engine interface ✅
- **Progress**: Basic structure defined, platform integration needed

## ❌ **Not Yet Started**

### 1. **Platform Implementation Files**
- `src/platform/x11_platform.cc` - X11 implementation
- `src/platform/wayland_platform.cc` - Wayland implementation
- `src/platform/windows_platform.cc` - Windows implementation
- `src/platform/macos_platform.cc` - macOS implementation

### 2. **Smart Placement Algorithms**
- `src/layouts/smart_placement.cc` - Smart window placement implementation

### 3. **GUI Settings Program**
- Cross-platform settings interface
- System integration (Windows Settings, macOS Preferences, Linux Settings)

### 4. **Advanced Features**
- Window rules engine
- Advanced theming system
- Performance optimization
- Accessibility features

## 🚀 **Next Implementation Steps**

### **Phase 1: Platform Implementation (Priority: HIGH)**

#### **1.1 X11 Platform Implementation**
```bash
# Create X11 implementation
touch src/platform/x11_platform.cc
# Implement X11 event handling, window management, input handling
```

**Key Requirements**:
- X11 event loop and event conversion
- Window management (create, destroy, move, resize)
- Input handling (keyboard, mouse)
- Monitor detection and management
- EWMH/NETWM compliance

#### **1.2 Wayland Platform Implementation**
```bash
# Create Wayland implementation
touch src/platform/wayland_platform.cc
# Implement Wayland compositor using wlroots
```

**Key Requirements**:
- wlroots backend setup
- Wayland protocol handling (XDG Shell, Layer Shell)
- XWayland support
- Surface management
- Input device handling

#### **1.3 Windows Platform Implementation**
```bash
# Create Windows implementation
touch src/platform/windows_platform.cc
# Implement Win32 API integration
```

**Key Requirements**:
- Win32 window management
- Global hooks for input
- DWM integration
- Window subclassing

#### **1.4 macOS Platform Implementation**
```bash
# Create macOS implementation
touch src/platform/macos_platform.cc
# Implement Core Graphics/AppKit integration
```

**Key Requirements**:
- Core Graphics window management
- Accessibility APIs
- Event taps
- AppKit integration

### **Phase 2: Core Window Management (Priority: HIGH)**

#### **2.1 Window Class Implementation**
```cpp
// Implement platform-specific window operations
class Window {
    // Platform-specific window handles
    #ifdef LINUX_PLATFORM
        Window x11_handle_;
        struct wlr_surface* wayland_surface_;
    #elif defined(WIN32_PLATFORM)
        HWND win32_handle_;
    #elif defined(MACOS_PLATFORM)
        CGWindowID macos_window_id_;
    #endif
};
```

#### **2.2 Window Manager Implementation**
```cpp
// Implement core window management logic
class WindowManager {
    // Platform integration
    std::unique_ptr<Platform> platform_;
    
    // Window management
    void handle_window_created(Window* window);
    void handle_window_destroyed(Window* window);
    void handle_window_focused(Window* window);
};
```

### **Phase 3: Layout System (Priority: MEDIUM)**

#### **3.1 Smart Placement Implementation**
```cpp
// Implement Windows 11-style smart placement
class SmartPlacement {
    PlacementResult place_window(const Window* window, const Monitor& monitor);
    PlacementResult place_in_grid(const Window* window, const Monitor& monitor);
    PlacementResult snap_to_edge(const Window* window, const Monitor& monitor);
};
```

#### **3.2 Layout Engine Implementation**
```cpp
// Implement layout management
class LayoutEngine {
    void arrange_windows_on_monitor(const Monitor& monitor);
    void switch_layout(const std::string& layout_name);
    void configure_layout(const std::string& layout_name, const LayoutConfig& config);
};
```

### **Phase 4: Advanced Features (Priority: LOW)**

#### **4.1 Window Rules Engine**
```cpp
// Implement automatic window management
class WindowRulesEngine {
    void apply_rules_to_window(Window* window);
    bool matches_rule(const Window* window, const WindowRule& rule);
    void execute_rule_action(const Window* window, const WindowRule& rule);
};
```

#### **4.2 GUI Settings Program**
```cpp
// Cross-platform settings interface
class SettingsProgram {
    #ifdef LINUX_PLATFORM
        void create_gtk_interface();
    #elif defined(WIN32_PLATFORM)
        void create_winui_interface();
    #elif defined(MACOS_PLATFORM)
        void create_swiftui_interface();
    #endif
};
```

## 🧪 **Testing Strategy**

### **Unit Testing**
```bash
# Test each platform independently
mkdir tests/
touch tests/test_x11_platform.cc
touch tests/test_wayland_platform.cc
touch tests/test_windows_platform.cc
touch tests/test_macos_platform.cc
```

### **Integration Testing**
```bash
# Test platform integration
touch tests/test_platform_factory.cc
touch tests/test_lua_integration.cc
```

### **Platform-Specific Testing**
```bash
# Test on actual platforms
# Linux: X11 and Wayland environments
# Windows: Windows 10/11
# macOS: macOS 12+
```

## 📊 **Current Progress Metrics**

| Component | Status | Progress | Priority |
|-----------|--------|----------|----------|
| Lua Configuration | ✅ Complete | 100% | HIGH |
| Platform Architecture | ✅ Complete | 100% | HIGH |
| Build System | ✅ Complete | 100% | HIGH |
| Documentation | ✅ Complete | 100% | HIGH |
| Platform Headers | 🔄 In Progress | 80% | HIGH |
| Platform Implementation | ❌ Not Started | 0% | HIGH |
| Core Window Management | 🔄 In Progress | 40% | HIGH |
| Layout System | ❌ Not Started | 0% | MEDIUM |
| Smart Placement | ❌ Not Started | 0% | MEDIUM |
| GUI Settings | ❌ Not Started | 0% | LOW |

**Overall Progress: 35%**

## 🎯 **Immediate Next Steps**

### **Week 1-2: Platform Implementation**
1. **Implement X11 platform** (`src/platform/x11_platform.cc`)
2. **Implement Wayland platform** (`src/platform/wayland_platform.cc`)
3. **Test platform detection and initialization**

### **Week 3-4: Core Integration**
1. **Integrate platforms with window manager**
2. **Implement basic window operations**
3. **Test window creation and management**

### **Week 5-6: Layout System**
1. **Implement smart placement algorithms**
2. **Create layout engine**
3. **Test layout switching and configuration**

## 🚨 **Critical Notes**

### **1. Wayland vs X11 Separation**
- **NEVER mix X11 and Wayland APIs**
- Use wlroots for Wayland implementation
- Handle XWayland as special case within Wayland
- Maintain strict separation in platform implementations

### **2. Platform Abstraction**
- Keep platform-specific code isolated
- Use common interfaces for cross-platform functionality
- Implement platform detection automatically
- Respect each platform's event model

### **3. Testing Requirements**
- Test each platform independently
- Validate platform-specific features
- Use CI/CD with multiple platform targets
- Test on actual hardware when possible

## 🔮 **Future Enhancements**

### **Phase 5: Performance Optimization**
- GPU acceleration
- Efficient rendering
- Memory management
- Event batching

### **Phase 6: Advanced Features**
- Plugin system
- Scripting engine
- Network transparency
- Virtual desktop support

### **Phase 7: Ecosystem Integration**
- Package managers
- Theme repositories
- Configuration sharing
- Community tools

This implementation approach ensures that SRDWM works correctly on each platform while respecting the fundamental differences between X11, Wayland, Windows, and macOS. The current focus should be on completing the platform implementations to establish a solid foundation for the window management system.