# CreaBook - AI Book Generation Application

A web application for generating books with AI, featuring book cover design and AI-powered book content generation.

## Features

### Cover Designer
- **Gallery View**: Browse and manage all your book covers
- **AI Generation**: Generate covers using AI with style presets and genre templates
- **Manual Editor**: Edit covers with text layers, adjust fonts, colors, and positioning
- **Export**: Download covers in high quality (PNG, JPEG)

### Book Generator
- **Genre Templates**: 12 genres including Fiction, Mystery, Romance, Sci-Fi, Fantasy, Horror, Thriller, Children's Books, Non-Fiction, Self-Help, Business, and Memoir
- **AI Outline Generation**: Create detailed chapter outlines based on your book idea
- **Chapter Writing**: Generate chapters with AI or write manually
- **Character Development**: Generate AI-suggested characters with traits, motivations, and backstories
- **Writing Assistant**: AI-powered text expansion and improvement tools

## Tech Stack

- **Frontend**: React 18 + Vite + TypeScript + Tailwind CSS
- **State Management**: Zustand
- **Canvas Editing**: react-konva
- **Backend**: Node.js + Express + TypeScript
- **AI**: Ollama (local AI - llama3 for text, stable-diffusion for images)
- **HTTP**: Axios + TanStack Query

## Prerequisites

1. **Node.js** (v18 or higher)
2. **Ollama** installed and running locally

### Install Ollama

```bash
# macOS
brew install ollama

# Linux
curl -fsSL https://ollama.com/install.sh | sh

# Windows
# Download from https://ollama.com/download
```

### Pull Required Models

```bash
ollama pull llama3
ollama pull flux
```

## Installation

```bash
# Install dependencies
npm install

# Start development servers (both client and server)
npm run dev
```

The application will be available at:
- Frontend: http://localhost:3000
- Backend API: http://localhost:3001

## Project Structure

```
CreaBook/
├── client/                     # React frontend
│   ├── src/
│   │   ├── components/
│   │   │   ├── cover-designer/ # Cover gallery, editor, AI generator
│   │   │   ├── book-generator/ # Genre selector, outline, editor
│   │   │   └── SettingsPage.tsx
│   │   ├── stores/             # Zustand stores (cover, book)
│   │   ├── services/           # API clients
│   │   └── App.tsx
├── server/                     # Node.js backend
│   ├── src/
│   │   ├── api/                # Express routes
│   │   ├── services/           # Business logic
│   │   └── prompts/            # Genre templates
└── uploads/                    # Uploaded/generated covers
```

## API Endpoints

### Ollama
- `POST /api/ollama/generate` - Generate text
- `POST /api/ollama/stream` - Stream text generation (SSE)
- `POST /api/ollama/image` - Generate images
- `GET /api/ollama/models` - List available models

### Covers
- `GET /api/covers` - List all covers
- `POST /api/covers/upload` - Upload a cover
- `POST /api/covers/process` - Process/edit a cover
- `DELETE /api/covers/:id` - Delete a cover

### Books
- `GET /api/books/genres` - List all genre templates
- `POST /api/books/outline` - Generate book outline
- `POST /api/books/chapter` - Generate a chapter
- `POST /api/books/expand` - Expand/improve text
- `POST /api/books/characters` - Generate characters
- `POST /api/books/plot` - Get plot suggestions

## Usage Guide

### 1. Design a Book Cover

1. Navigate to **Cover Designer**
2. Choose between:
   - **Gallery**: Upload or browse existing covers
   - **AI Generate**: Create covers with AI prompts
   - **Editor**: Edit covers with text layers
3. For AI generation:
   - Select a style (Modern, Minimalist, Vintage, etc.)
   - Describe your desired cover or use a genre preset
   - Click "Generate Cover"

### 2. Generate a Book

1. Navigate to **Book Generator**
2. Select a genre
3. Enter your book title (optional) and core idea
4. Click "Generate Outline"
5. Review the AI-generated chapter outline
6. Navigate to **Write** tab
7. Generate chapters individually or write manually
8. Use **Characters** tab to develop your cast

### 3. Combine Cover and Book

After creating both a cover and a book, you can assign the cover to your book for a complete package.

## Scripts

```bash
# Development
npm run dev              # Start both servers
npm run dev:client       # Start frontend only
npm run dev:server       # Start backend only

# Build
npm run build            # Build both
npm run build:client     # Build frontend
npm run build:server     # Build backend
```

## License

MIT