# Project Tasks

## ✅ Completed Objectives
- [x] Implement MVC architecture
- [x] Create 6-digit code system for file sharing
- [x] Build mobile-friendly upload system
- [x] Implement download tracking and limits
- [x] Add file expiry system
- [x] Create modern UI with error handling
- [x] Add API authentication for uploads

## 🎯 Core Features Implemented

### Architecture & Code Structure
- [x] MVC pattern implementation
  - [x] FileMetadata model
  - [x] Upload/download controllers
  - [x] Template-based views
- [x] Clean separation of concerns
- [x] Proper error handling
- [x] Logging system

### File Upload System
- [x] Secure file handling
- [x] Metadata tracking
- [x] Configurable limits
- [x] API response format
- [x] API key authentication

### Download System
- [x] Code validation
- [x] Download tracking
- [x] Auto cleanup
- [x] User-friendly error pages
- [x] Force download vs display

### User Interface
- [x] Modern design
- [x] Mobile responsiveness
- [x] Input validation
- [x] Loading states
- [x] Error feedback
- [x] Success messages

## 🚀 Future Enhancements

### Security
- [ ] Add rate limiting
- [ ] Implement file type restrictions
- [ ] Add optional password protection
- [ ] CSRF protection
- [ ] Add key rotation support
- [ ] Implement IP whitelisting
- [ ] Add audit logging

### Features
- [ ] Multi-file upload support
- [ ] Progress bar for uploads
- [ ] Email notifications
- [ ] QR code generation
- [ ] Preview for images/PDFs

### Infrastructure
- [ ] Add unit tests
- [ ] Set up CI/CD pipeline
- [ ] Implement persistent storage
- [ ] Add monitoring/metrics
- [ ] Create backup system
- [ ] Add health check endpoints

### UI/UX
- [ ] Dark mode support
- [ ] Drag-and-drop uploads
- [ ] Improved mobile UI
- [ ] Accessibility improvements
- [ ] Internationalization