# Frontend Structure Documentation

## Project Organization

```
frontend/
├── src/
│   ├── app/              # Next.js App Router pages
│   ├── components/       # Reusable React components
│   ├── types/           # TypeScript type definitions
│   └── lib/             # Utility functions and configurations
```

## Component Architecture

### Core Components

1. **Layout (layout.tsx)**
   - Global page structure
   - Navigation header
   - Footer
   - Consistent styling across pages
   - Using Inter font
   - Responsive design with Tailwind

2. **Error Boundary (error-boundary.tsx)**
   - Global error handling
   - Fallback UI for errors
   - Error reporting capabilities
   - Retry functionality
   - Type-safe implementation

3. **Home Page (page.tsx)**
   - Parks listing
   - Loading states
   - Error handling
   - Responsive grid layout
   - Pagination support

## API Integration

### Parks API
- GET /api/parks
  - Pagination support
  - Search functionality
  - Error handling
  - Type-safe responses

## State Management
- Using React hooks for local state
- Server-side data fetching
- Error state handling
- Loading state management

## Styling Approach
1. **Tailwind CSS**
   - Utility-first approach
   - Custom theme configuration
   - Responsive design utilities
   - Component-specific styles

2. **Component Design**
   - Consistent spacing
   - Mobile-first approach
   - Accessible color schemes
   - Interactive states

## Type Safety
1. **TypeScript Integration**
   - Strict type checking
   - API response types
   - Component props typing
   - Error handling types

## Error Handling Strategy
1. **Multiple Layers**
   - Component-level error boundaries
   - API error handling
   - Type-safe error responses
   - User-friendly error messages

2. **Recovery Options**
   - Retry functionality
   - Graceful degradation
   - Clear error messaging
   - User guidance

## Performance Considerations
1. **Optimizations**
   - Component code splitting
   - Image optimization
   - Responsive loading
   - Caching strategy

2. **Monitoring**
   - Error tracking
   - Performance metrics
   - User interactions
   - API response times

## Accessibility
1. **Implementation**
   - ARIA labels
   - Keyboard navigation
   - Focus management
   - Screen reader support

## Next Steps

### Immediate Tasks
1. Implement authentication components
2. Add park detail page
3. Implement search functionality
4. Add pagination controls

### Future Improvements
1. Add park reviews system
2. Implement user profiles
3. Add social sharing
4. Enhance search capabilities

## Migration Progress

### Completed
✅ Basic page structure
✅ Error handling system
✅ Parks listing page
✅ API integration structure

### In Progress
⏳ Authentication system
⏳ Park details page
⏳ Search functionality

### Pending
⬜ User profiles
⬜ Reviews system
⬜ Admin interface
⬜ Analytics integration

## Testing Strategy

### Unit Tests
- Component rendering
- API integrations
- Error handling
- State management

### Integration Tests
- User flows
- API interactions
- Error scenarios
- Authentication

### E2E Tests
- Critical paths
- User journeys
- Cross-browser testing
- Mobile responsiveness

## Documentation Needs
1. Component API documentation
2. State management patterns
3. Error handling procedures
4. Testing guidelines