flashcard

Architecture Documentation

System Overview

Tech Stack

• Frontend: Next.js, TypeScript, Material-UI
• Backend: Next.js API Routes
• Database: MongoDB
• Authentication: NextAuth.js
• State Management: React Context/Hooks
• Build Tools: Husky, ESLint, Jest
• Deployment: GitHub Actions, GitHub Pages

Project Structure

flashcard/
├── .github/             # GitHub Actions workflows
├── .husky/             # Git hooks
├── components/         # React components
├── docs/              # Documentation
├── models/            # Data models
├── pages/             # Next.js pages & API routes
├── public/            # Static assets
├── scripts/           # Utility scripts
├── styles/            # CSS styles
├── utils/             # Utility functions
├── .env.example       # Environment variables template
├── next.config.js     # Next.js configuration
├── package.json       # Dependencies and scripts
└── tsconfig.json      # TypeScript configuration

Architecture Diagram

┌─────────────────┐     ┌──────────────┐     ┌─────────────┐
│    Frontend     │     │  Next.js API  │     │  Database   │
│  (Next.js/React)│ ──► │    Routes    │ ──► │  (MongoDB)  │
└─────────────────┘     └──────────────┘     └─────────────┘
        ▲                      ▲                    ▲
        │                      │                    │
        │                ┌──────────┐               │
        └────────────── │ NextAuth │ ───────────────┘
                       └──────────┘

Component Architecture

Frontend Structure

/components
  /auth          # Authentication components
    LoginForm.tsx
    RegisterForm.tsx
  /common        # Shared components
    ErrorBoundary.tsx
    LoadingSpinner.tsx
  /dashboard     # Dashboard views
    Stats.tsx
    RecentDecks.tsx
  /flashcards    # Flashcard components
    CardEditor.tsx
    StudyMode.tsx
  /layout        # Layout components
    Header.tsx
    Navigation.tsx
  /theme         # Theme configuration
    ThemeProvider.tsx

Backend Structure

/pages/api
  /auth          # Authentication endpoints
    [...nextauth].ts
    register.ts
  /decks         # Deck management
    index.ts
    [id].ts
  /flashcards    # Flashcard operations
    create.ts
    update.ts
  /stats         # Statistics and progress
    index.ts

Quality Assurance

Pre-commit Hooks

• Linting (ESLint)
• Type checking (TypeScript)
• Unit tests (Jest)
• Build verification

Continuous Integration

• GitHub Actions workflow
• Automated testing
• Build verification
• Deployment checks

Development Workflow

Code Organization

/
├── components/    # React components
├── pages/         # Next.js pages
├── public/        # Static assets
├── styles/        # Global styles
├── utils/         # Utilities
└── lib/          # Core libraries

Development Process

1. Feature planning
2. Implementation
3. Testing
4. Code review
5. Deployment

Build & Deployment

Build Process

1. Clean previous builds
2. Type checking
3. Linting
4. Testing
5. Next.js build
6. Static export
7. Sitemap generation

Deployment Pipeline

1. Push to main branch
2. GitHub Actions trigger
3. Install dependencies
4. Run tests
5. Build application
6. Deploy to GitHub Pages

Security Implementation

Authentication Flow

1. User login/register
2. NextAuth session creation
3. JWT token generation
4. Secure cookie storage

API Protection

1. Rate limiting
2. CORS configuration
3. Input validation
4. Error handling

Performance Optimization

Frontend

1. Code splitting
2. Image optimization
3. Static generation
4. Bundle optimization

Backend

1. API rate limiting
2. Database indexing
3. Caching strategy
4. Error boundary implementation

Monitoring & Maintenance

System Monitoring

1. Error tracking
2. Performance metrics
3. User analytics

Maintenance Tools

1. Setup verification script
2. Database maintenance
3. Cache management
4. Log rotation

Integration Points

External Services

1. MongoDB Atlas
2. GitHub Pages
3. NextAuth providers
4. Analytics services

Development Tools

Local Development

npm run dev        # Start development server
npm run verify     # Verify setup
npm run test       # Run tests

Production Build

npm run build      # Create production build
npm run deploy     # Deploy to GitHub Pages

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