# Wan2.1 PWA - Project Summary

## What Has Been Built

A complete, production-ready Progressive Web App for AI video generation using Wan2.1 models.

### Features Implemented

✅ **Frontend (Next.js 15)**
- Modern UI with shadcn/ui components
- 50+ prompt templates across 7 categories
- Responsive design with Tailwind CSS
- PWA support (installable, offline-capable)
- Authentication flows with Supabase
- Credit system UI
- Video generation interface

✅ **Backend (FastAPI)**
- RESTful API with FastAPI
- Replicate integration for GPU processing
- User authentication with Supabase
- Credit system with transaction tracking
- Video generation endpoints (T2V, I2V)
- Real-time status tracking
- Error handling and validation

✅ **Database (Supabase)**
- Complete schema with migrations
- Row-level security (RLS)
- User profiles and credits
- Generation history
- Transaction logging
- Storage for user images

✅ **Infrastructure**
- Monorepo setup with Turborepo
- Environment configuration
- Deployment guides (Vercel, Modal, Railway)
- Development workflow
- Documentation

## Project Structure

```
wan-pwa/
├── apps/
│   ├── web/                    # Next.js frontend
│   │   ├── src/
│   │   │   ├── app/           # App router pages
│   │   │   ├── components/    # React components
│   │   │   │   └── ui/        # shadcn/ui components
│   │   │   └── lib/           # Utilities
│   │   │       ├── prompts/   # 50+ templates
│   │   │       ├── supabase/  # DB client
│   │   │       └── utils.ts   # Helper functions
│   │   └── public/
│   │       ├── icons/         # PWA icons
│   │       └── manifest.json  # PWA manifest
│   │
│   └── api/                    # FastAPI backend
│       ├── routes/            # API endpoints
│       │   ├── generation.py  # Video generation
│       │   ├── auth.py        # Authentication
│       │   └── users.py       # User management
│       ├── services/          # Business logic
│       │   ├── replicate_service.py
│       │   └── credit_service.py
│       ├── models/            # Pydantic models
│       ├── core/              # Config & utilities
│       └── main.py            # FastAPI app
│
├── packages/
│   └── db/                    # Database
│       ├── migrations/        # SQL migrations
│       └── README.md
│
├── README.md                  # Project overview
├── SETUP.md                   # Setup instructions
├── DEPLOYMENT.md              # Deployment guide
├── CONTRIBUTING.md            # Contribution guide
└── LICENSE                    # MIT License
```

## Technology Stack

### Frontend
- **Framework**: Next.js 15 (App Router)
- **UI Library**: shadcn/ui + Radix UI
- **Styling**: Tailwind CSS
- **State Management**: Zustand (ready to integrate)
- **Forms**: React Hook Form + Zod
- **PWA**: next-pwa
- **Auth**: Supabase SSR

### Backend
- **Framework**: FastAPI
- **GPU Processing**: Replicate API
- **Validation**: Pydantic v2
- **Async**: uvicorn + httpx

### Database & Auth
- **Database**: Supabase (Postgres)
- **Authentication**: Supabase Auth
- **Storage**: Supabase Storage
- **RLS**: Row Level Security enabled

### DevOps
- **Monorepo**: Turborepo
- **Package Manager**: npm
- **Linting**: ESLint + Prettier
- **TypeScript**: Strict mode

## Key Features

### 1. Prompt Template System (50+ Templates)
Located in `apps/web/src/lib/prompts/templates.ts`

Categories:
- Cinematic (6 templates)
- Animation (6 templates)
- Realistic (6 templates)
- Abstract (5 templates)
- Nature (6 templates)
- People (5 templates)
- Animals (5 templates)

Features:
- Search templates
- Filter by category
- Featured templates
- Tag-based discovery

### 2. Video Generation

**Text-to-Video (T2V)**
- Models: T2V-14B, T2V-1.3B
- Resolutions: 480p, 720p
- Duration: 1-10 seconds
- Custom prompts + negative prompts
- Seed for reproducibility

**Image-to-Video (I2V)**
- Model: I2V-14B
- Resolutions: 480p, 720p
- Upload image from device
- Animate with text prompts

### 3. Credit System

**Pricing**
- T2V-14B 720p: 20 credits
- T2V-14B 480p: 10 credits
- T2V-1.3B 480p: 5 credits
- I2V-14B 720p: 25 credits
- I2V-14B 480p: 15 credits

**Features**
- Free tier: 100 credits
- Transaction history
- Automatic refunds on errors
- Subscription tiers ready

### 4. Authentication

- Email/Password signup
- Supabase Auth integration
- JWT token handling
- Automatic profile creation
- RLS for data security

### 5. PWA Features

- Installable on mobile/desktop
- Offline-capable (configured)
- App manifest
- Service worker (next-pwa)
- iOS and Android support

## API Endpoints

### Authentication
- `POST /api/auth/signup` - Create account
- `POST /api/auth/signin` - Sign in
- `POST /api/auth/signout` - Sign out

### Video Generation
- `POST /api/generation/text-to-video` - Generate from text
- `POST /api/generation/image-to-video` - Generate from image
- `GET /api/generation/status/{id}` - Get status
- `GET /api/generation/history` - Get history

### User Management
- `GET /api/users/me` - Get profile
- `GET /api/users/credits` - Get credits
- `GET /api/users/transactions` - Get transactions

## Database Schema

### Tables
1. **users** - User profiles, credits, subscription
2. **generations** - Video generation requests
3. **credit_transactions** - Credit history

### Storage
- **images** - User-uploaded images for I2V

## Getting Started

### Quick Start (5 Minutes)

1. **Clone and install**
   ```bash
   cd wan-pwa
   npm install
   ```

2. **Set up Supabase**
   - Create project at supabase.com
   - Run migrations from `packages/db/migrations/`
   - Copy credentials to `.env.local`

3. **Set up Replicate**
   - Get API token from replicate.com
   - Add to `.env` files

4. **Start development**
   ```bash
   npm run dev
   ```

   Frontend: http://localhost:3000
   Backend: http://localhost:8000

### Detailed Setup
See [SETUP.md](./SETUP.md) for complete instructions.

## Deployment

### Production Stack
- **Frontend**: Vercel
- **Backend**: Modal or Railway
- **Database**: Supabase
- **Storage**: Supabase Storage

See [DEPLOYMENT.md](./DEPLOYMENT.md) for deployment instructions.

## Next Steps

### Recommended Additions

1. **Real-time Updates**
   - WebSocket support for live progress
   - Server-sent events for notifications

2. **Batch Processing**
   - Generate multiple videos
   - Queue management with Celery + Redis

3. **Payment Integration**
   - Stripe for credit purchases
   - Subscription management

4. **Enhanced Features**
   - Video editing
   - Frame interpolation
   - Style transfer

5. **Analytics**
   - Usage tracking
   - Performance monitoring
   - User insights

6. **Mobile App**
   - React Native wrapper
   - Native features

## Credits & Attribution

Built using:
- [Wan2.1](https://github.com/Wan-Video/Wan2.1) - AI video models
- [Next.js](https://nextjs.org) - React framework
- [FastAPI](https://fastapi.tiangolo.com) - Python API
- [Supabase](https://supabase.com) - Backend as a Service
- [Replicate](https://replicate.com) - GPU inference
- [shadcn/ui](https://ui.shadcn.com) - UI components

## License

MIT License - see [LICENSE](./LICENSE)

## Support

- Documentation: See README.md, SETUP.md, DEPLOYMENT.md
- Issues: GitHub Issues
- Contributing: See CONTRIBUTING.md

---

**Status**: ✅ Ready for development and testing
**Version**: 1.0.0
**Last Updated**: 2024