# Tactus Desktop - Setup Complete! ✅

The Electron desktop application for Tactus IDE has been successfully set up and is ready to use.

## What Was Created

### 1. Project Structure ✅
```
tactus-desktop/
├── src/                      # TypeScript source files
│   ├── main.ts              # Electron main process
│   ├── backend-manager.ts   # Spawns `tactus ide --no-browser`
│   └── menu.ts              # Native application menus
├── preload/
│   └── preload.ts           # IPC bridge (contextIsolation)
├── backend/
│   └── tactus_backend.spec  # PyInstaller configuration
├── scripts/
│   ├── build-backend.js     # Builds Python bundle with PyInstaller
│   └── build-frontend.js    # Builds React frontend
├── dist/                    # Compiled JavaScript
├── package.json             # Node.js dependencies & build config
├── tsconfig.json            # TypeScript configuration
└── README.md                # Documentation
```

### 2. Modified Files ✅
- **tactus/cli/app.py**: Added `--no-browser` flag to `tactus ide` command

### 3. GitHub Actions Workflow ✅
- **.github/workflows/desktop-release.yml**: Automated builds for macOS, Windows, Linux

## Quick Start

### Development Mode (Testing)

```bash
cd tactus-desktop

# Make sure tactus is installed in dev mode
cd ..
pip install -e .
cd tactus-desktop

# Run the app
npm run dev
```

This will:
1. Compile TypeScript → JavaScript
2. Start Electron
3. Spawn `tactus ide --no-browser`
4. Open IDE in Electron window

### Building for Production

```bash
# Build frontend + backend + Electron
npm run build:all

# Package for your platform
npm run package:mac     # Creates .dmg
npm run package:win     # Creates .exe installer
npm run package:linux   # Creates .AppImage
```

Output will be in `tactus-desktop/dist-electron/`

## How It Works

1. **Electron launches** → Runs `dist/src/main.js`
2. **BackendManager** → Spawns `tactus ide --no-browser`
3. **Parses stdout** → Detects backend port (5001+) and frontend port (3000+)
4. **BrowserWindow** → Loads `http://127.0.0.1:{frontend_port}`
5. **IDE runs** → Flask backend + React frontend, all in one window

## Release Process

To create a release:

```bash
# Tag with desktop-v prefix
git tag desktop-v0.1.0
git push origin desktop-v0.1.0
```

GitHub Actions will automatically:
- Build for macOS, Windows, Linux
- Create installers
- Upload to GitHub Releases

## Next Steps

### Immediate Testing
1. Run `npm run dev` from `tactus-desktop/` to test locally
2. Verify the IDE opens in Electron window
3. Test file operations, LSP validation, etc.

### Before First Release
1. Create application icons:
   - `resources/app-icon.icns` (macOS, 1024x1024)
   - `resources/app-icon.ico` (Windows, 256x256)
   - `resources/app-icon.png` (Linux, 512x512)

2. Test packaging:
   ```bash
   npm run package:mac  # Or :win or :linux
   ```

3. Test the installer:
   - macOS: Open .dmg, drag to Applications
   - Windows: Run .exe installer
   - Linux: Run .AppImage

### Known Limitations (MVP)
- **No code signing**: Users will see security warnings
  - macOS: Right-click > Open
  - Windows: "More info" > "Run anyway"
- **No auto-updates**: Users must manually download new versions
- **No file associations**: Can't double-click .tac files yet

## Troubleshooting

### "tactus: command not found" in dev mode
```bash
cd /path/to/Tactus
pip install -e .
```

### Port already in use
The `tactus ide` command auto-detects available ports (5001-5100). If all are taken, it will error.

### Backend fails to start
Check the logs in Electron DevTools (View > Toggle DevTools). Look for `[Backend]` messages.

### PyInstaller build fails
Make sure all dependencies are installed:
```bash
pip install pyinstaller
pip install -e /path/to/Tactus
```

## Architecture Notes

### Why spawn `tactus ide` instead of importing Python?
- **Reuses existing logic**: Port detection, server startup, frontend serving
- **Clean separation**: Backend can crash/restart independently
- **Standard pattern**: Used by VS Code, Atom, etc.
- **Easier debugging**: Can test backend separately

### Why PyInstaller?
- Most mature Python bundler
- Good support for complex dependencies (Flask, lupa, ANTLR)
- Cross-platform
- Single executable output

### Why electron-builder?
- Industry standard (VS Code, Slack, etc.)
- Excellent installer generation
- Multi-platform support
- Good documentation

## Files You Can Modify

### To change window size/title:
Edit `tactus-desktop/src/main.ts`

### To change menus:
Edit `tactus-desktop/src/menu.ts`

### To add IPC handlers:
Edit `tactus-desktop/preload/preload.ts` and `src/main.ts`

### To change build configuration:
Edit `tactus-desktop/package.json` (build section)

## Success! 🎉

The Tactus Desktop app is ready. Total setup time: ~15-20 minutes.

Run `npm run dev` to see it in action!
