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Leftover from the mechanical extraction: the shell still called computeSchoolFlags() and derived isReportCard / ofstedInspectedDate / oeifAreas / oeifAllSameGrade / deprivationDesc / primaryAvg / secondaryAvg on every render, duplicating work page.tsx already does. None of those values were referenced in its JSX anymore -- that logic moved to the section composers. The chrome needs only four locally-derived values (latestResults, phase, isAllThrough, hasLocation), all one-liners over props it already owns. Removing them made seven props dead, which TypeScript caught at both call sites: absenceData, ofsted, admissions, admissionsHistory, deprivation, finance and nationalAvg now go straight to the section composers and never reach the client component. The shell's surface is down to schoolInfo, yearlyData, census, navItems and children. No behaviour change: 155 tests pass and the characterization tests remain byte-identical to the commit that introduced them. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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
# Install dependencies
npm install
# Copy environment variables
cp .env.example .env.local
# Update .env.local with your configuration
Development
# Start development server
npm run dev
# Open http://localhost:3000
Building
# Build for production
npm run build
# Start production server
npm start
Testing
# Run tests
npm test
# Run tests in watch mode
npm run test:watch
# Run tests with coverage
npm run test:coverage
Linting
# 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.