# SchoolCompare Next.js Application

Modern Next.js application for comparing primary school KS2 performance across England.

## Features

- **Server-Side Rendering (SSR)**: Fast initial page loads with pre-rendered content
- **Individual School Pages**: Dedicated pages for each school with full SEO optimization
- **Side-by-Side Comparison**: Compare up to 5 schools simultaneously
- **School Rankings**: Top-performing schools by various metrics
- **Interactive Maps**: Leaflet integration for geographic visualization
- **Performance Charts**: Chart.js visualizations for historical data
- **Responsive Design**: Mobile-first approach with full responsive support
- **SEO Optimized**: Dynamic sitemaps, meta tags, and structured data

## Tech Stack

- **Framework**: Next.js 16 (App Router)
- **Language**: TypeScript 5
- **Styling**: CSS Modules + CSS Variables
- **State Management**: React Context API + URL state
- **Data Fetching**: SWR (client-side) + Next.js fetch (server-side)
- **Charts**: Chart.js + react-chartjs-2
- **Maps**: Leaflet + react-leaflet
- **Testing**: Jest + React Testing Library
- **Validation**: Zod

## Getting Started

### Prerequisites

- Node.js 24+ (using nvm recommended)
- FastAPI backend running on port 8000

### Installation

```bash
# Install dependencies
npm install

# Copy environment variables
cp .env.example .env.local

# Update .env.local with your configuration
```

### Development

```bash
# Start development server
npm run dev

# Open http://localhost:3000
```

### Building

```bash
# Build for production
npm run build

# Start production server
npm start
```

### Testing

```bash
# Run tests
npm test

# Run tests in watch mode
npm run test:watch

# Run tests with coverage
npm run test:coverage
```

### Linting

```bash
# Run ESLint
npm run lint
```

## Project Structure

```
nextjs-app/
├── app/                      # App Router pages
│   ├── layout.tsx           # Root layout
│   ├── page.tsx             # Home page
│   ├── compare/             # Compare page
│   ├── rankings/            # Rankings page
│   ├── school/[urn]/        # Individual school pages
│   ├── sitemap.ts           # Dynamic sitemap
│   └── robots.ts            # Robots.txt
├── components/              # React components
│   ├── SchoolCard.tsx       # School card component
│   ├── FilterBar.tsx        # Search/filter controls
│   ├── ComparisonView.tsx   # Comparison interface
│   ├── RankingsView.tsx     # Rankings table
│   └── ...
├── lib/                     # Utility libraries
│   ├── api.ts              # API client
│   ├── types.ts            # TypeScript types
│   └── utils.ts            # Helper functions
├── hooks/                   # Custom React hooks
├── context/                 # React Context providers
├── styles/                  # Global styles
├── public/                  # Static assets
└── __tests__/              # Test files
```

## Environment Variables

| Variable | Description | Default |
|----------|-------------|---------|
| `NEXT_PUBLIC_API_URL` | Public API endpoint (client-side) | `http://localhost:8000/api` |
| `FASTAPI_URL` | Server-side API endpoint | `http://localhost:8000/api` |
| `NODE_ENV` | Environment mode | `development` |

## Performance Optimizations

- **Server-Side Rendering**: Initial HTML rendered on server
- **Static Generation**: Where possible, pages are pre-generated
- **Image Optimization**: Next.js Image component with AVIF/WebP support
- **Code Splitting**: Automatic route-based code splitting
- **Dynamic Imports**: Heavy components loaded on demand
- **API Caching**: Configurable revalidation for data fetching
- **Bundle Optimization**: Tree shaking and minification
- **Compression**: Gzip compression enabled

## SEO Features

- **Dynamic Meta Tags**: Generated per page with Next.js Metadata API
- **Open Graph**: Social media optimization
- **JSON-LD**: Structured data for search engines
- **Sitemap**: Auto-generated from database
- **Robots.txt**: Search engine crawling rules
- **Canonical URLs**: Duplicate content prevention

## Browser Support

- Chrome (latest)
- Firefox (latest)
- Safari (latest)
- Edge (latest)

## License

Proprietary - SchoolCompare

## Support

For issues and questions, please contact the development team.
