echoes-of-the-ash/docs/archive/PWA_IMPLEMENTATION.md

# PWA Implementation Summary

## What Was Created

I've successfully set up a complete Progressive Web App (PWA) infrastructure for Echoes of the Ashes, deployable via Docker with Traefik reverse proxy at `echoesoftheashgame.patacuack.net`.

## Project Structure Created

```
echoes_of_the_ashes/
├── pwa/                          # React PWA Frontend
│   ├── public/                   # Static assets (icons needed)
│   ├── src/
│   │   ├── components/
│   │   │   ├── Login.tsx         # Auth UI (login/register)
│   │   │   ├── Login.css
│   │   │   ├── Game.tsx          # Main game interface
│   │   │   └── Game.css
│   │   ├── contexts/
│   │   │   └── AuthContext.tsx   # Auth state management
│   │   ├── hooks/
│   │   │   └── useAuth.ts        # Custom auth hook
│   │   ├── services/
│   │   │   └── api.ts            # Axios API client
│   │   ├── App.tsx               # Main app + routing
│   │   ├── App.css
│   │   ├── main.tsx              # Entry point + SW registration
│   │   └── index.css
│   ├── vite.config.ts            # Vite + PWA plugin config
│   ├── tsconfig.json
│   ├── package.json
│   ├── .gitignore
│   └── README.md
│
├── api/                          # FastAPI Backend
│   ├── main.py                   # API routes + JWT auth
│   └── requirements.txt          # FastAPI, JWT, bcrypt
│
├── Dockerfile.pwa                # Multi-stage React build + Nginx
├── Dockerfile.api                # Python FastAPI container
├── nginx.conf                    # Nginx config with API proxy
├── migrate_web_auth.py           # Database migration script
├── docker-compose.yml            # Updated with PWA services
└── PWA_DEPLOYMENT.md             # Deployment guide
```

## Features Implemented

### ✅ Progressive Web App Features
- **React 18** with TypeScript for type safety
- **Vite** for fast builds and dev server
- **Service Worker** with Workbox for offline support
- **Web App Manifest** for install-to-homescreen
- **Mobile Responsive** design with CSS3
- **Auto-update** prompts when new version available

### ✅ Authentication System
- **JWT-based** authentication (7-day tokens)
- **Bcrypt** password hashing with salt
- **Register/Login** endpoints
- **Separate** from Telegram auth (can have both)
- **Database migration** to support web users

### ✅ API Backend
- **FastAPI** REST API
- **CORS** configured for PWA domain
- **JWT verification** middleware
- **Player state** endpoint
- **Movement** endpoint (placeholder)
- **Easy to extend** with new endpoints

### ✅ Docker Deployment
- **Multi-stage build** for optimized React bundle
- **Nginx** serving static files + API proxy
- **Traefik labels** for automatic HTTPS
- **SSL certificates** via Let's Encrypt
- **Three services**: DB, Bot, Map Editor, **API**, **PWA**

## Architecture

```
Internet
   │
   ▼
Traefik (HTTPS)
   │
   ├─► echoesoftheash.patacuack.net → Map Editor (existing)
   └─► echoesoftheashgame.patacuack.net → PWA
            │
            ├─► / → React App (Nginx)
            └─► /api/* → FastAPI Backend
                          │
                          ▼
                     PostgreSQL
```

## Technology Stack

| Layer | Technology |
|-------|-----------|
| **Frontend** | React 18, TypeScript, Vite |
| **PWA** | Workbox, Service Workers, Web Manifest |
| **Routing** | React Router 6 |
| **State** | React Context API (Zustand ready) |
| **HTTP** | Axios with interceptors |
| **Backend** | FastAPI, Uvicorn |
| **Auth** | JWT (PyJWT), Bcrypt |
| **Database** | PostgreSQL (existing) |
| **Web Server** | Nginx |
| **Container** | Docker multi-stage builds |
| **Proxy** | Traefik with Let's Encrypt |

## Database Changes

Added columns to `players` table:
- `id` - Serial auto-increment (for web users)
- `username` - Unique username (nullable)
- `password_hash` - Bcrypt hash (nullable)
- `telegram_id` - Now nullable (was required)

Constraint: Either `telegram_id` OR `username` must be set.

## API Endpoints

### Authentication
- `POST /api/auth/register` - Create account
- `POST /api/auth/login` - Get JWT token
- `GET /api/auth/me` - Get current user

### Game
- `GET /api/game/state` - Player state (health, stamina, location, etc.)
- `POST /api/game/move` - Move player (placeholder)

## Deployment Instructions

### 1. Run Migration
```bash
docker exec -it echoes_of_the_ashes_bot python migrate_web_auth.py
```

### 2. Add JWT Secret to .env
```bash
JWT_SECRET_KEY=your-super-secret-key-here
```

### 3. Build & Deploy
```bash
docker-compose up -d --build echoes_of_the_ashes_api echoes_of_the_ashes_pwa
```

### 4. Verify
```bash
# Check API
curl https://echoesoftheashgame.patacuack.net/api/

# Check PWA
curl https://echoesoftheashgame.patacuack.net/
```

## What Still Needs Work

### Critical
1. **Icons**: Create actual PWA icons (currently placeholder README)
   - `pwa-192x192.png`
   - `pwa-512x512.png`
   - `apple-touch-icon.png`
   - `favicon.ico`

2. **NPM Install**: Run `npm install` in pwa/ directory before building

3. **API Integration**: Complete game state endpoints
   - Full inventory system
   - Combat actions
   - NPC interactions
   - Movement logic

### Nice to Have
1. **Push Notifications**: Web Push API implementation
2. **WebSockets**: Real-time updates for multiplayer
3. **Offline Mode**: Cache game data for offline play
4. **UI Polish**: Better visuals, animations, sounds
5. **More Components**: Inventory, Combat, Map, Profile screens

## Key Files to Review

1. **pwa/src/App.tsx** - Main app structure
2. **api/main.py** - API endpoints and auth
3. **nginx.conf** - Nginx configuration
4. **docker-compose.yml** - Service definitions
5. **PWA_DEPLOYMENT.md** - Full deployment guide

## Security Considerations

✅ **Implemented**:
- JWT tokens with expiration
- Bcrypt password hashing
- HTTPS only (Traefik redirect)
- CORS restrictions
- SQL injection protection (SQLAlchemy)

⚠️ **Consider Adding**:
- Rate limiting on API endpoints
- Refresh tokens
- Account verification (email)
- Password reset flow
- Session management
- Audit logging

## Performance Optimizations

✅ **Already Configured**:
- Nginx gzip compression
- Static asset caching (1 year)
- Service worker caching (API 1hr, images 30d)
- Multi-stage Docker builds
- React production build

## Testing Checklist

Before going live:
- [ ] Run migration script
- [ ] Generate JWT secret key
- [ ] Create PWA icons
- [ ] Test registration flow
- [ ] Test login flow
- [ ] Test API authentication
- [ ] Test on mobile device
- [ ] Test PWA installation
- [ ] Test service worker caching
- [ ] Test HTTPS redirect
- [ ] Test Traefik routing
- [ ] Backup database
- [ ] Monitor logs for errors

## Next Steps

1. **Immediate** (to deploy):
   ```bash
   cd pwa
   npm install
   cd ..
   docker-compose up -d --build echoes_of_the_ashes_api echoes_of_the_ashes_pwa
   ```

2. **Short-term** (basic functionality):
   - Implement real game state API
   - Create inventory UI
   - Add movement with map
   - Basic combat interface

3. **Medium-term** (full features):
   - Push notifications
   - WebSocket real-time updates
   - Offline mode
   - Advanced UI components

4. **Long-term** (polish):
   - Animations and transitions
   - Sound effects
   - Tutorial/onboarding
   - Achievements system

## Documentation

All documentation created:
- `pwa/README.md` - PWA project overview
- `PWA_DEPLOYMENT.md` - Deployment guide
- `pwa/public/README.md` - Icon requirements
- This file - Implementation summary

## Questions?

See `PWA_DEPLOYMENT.md` for:
- Detailed deployment steps
- Troubleshooting guide
- Architecture diagrams
- Security checklist
- Monitoring setup
- Backup procedures

---

**Status**: 🟡 **Ready to Deploy** (after npm install + icons)

**Deployable**: Yes, with basic auth and placeholder UI  
**Production Ready**: Needs more work on game features  
**Documentation**: Complete ✓