# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]

### Added
- Initial project setup with Django 5.2.8 and React 19
- Multi-tenant architecture with organization-based filtering
- Complete backend modules:
  - Accounts & Organizations
  - Projects & Milestones
  - Tasks & Task Dependencies
  - Contracts (Main, Subcontract, Consulting)
  - Financial (Invoices, Expenses, Payments)
  - HR (Employees, Attendance, Payroll, Food Service)
  - Resources (Materials, Equipment, Suppliers)
  - Requests (Purchase Requests & Orders)
  - Property (Buildings & Units)
  - Documents Management
  - Workflows
- Frontend features:
  - Modern dashboard with KPI cards
  - Advanced analytics dashboard with Recharts
  - Project management with Gantt charts
  - Task Kanban board with drag & drop
  - Task calendar view (month/week/day/agenda)
  - Contract management interface
  - Financial management with invoicing
  - HR management (employees, attendance, payroll)
  - Resource and request management
  - Property management (buildings & units)
  - Document management with file upload/preview
  - Reports & export system (PDF, Excel, Print)
  - Notification system with real-time polling
  - File management with drag & drop upload
- Docker containerization:
  - Backend Dockerfile with Gunicorn
  - Frontend Dockerfile with multi-stage build
  - docker-compose.yml with PostgreSQL and Redis
  - Production-ready Nginx configuration
- CI/CD pipeline:
  - GitHub Actions workflow
  - Automated testing
  - Docker image building and pushing
  - Deployment automation
- Testing infrastructure:
  - Pytest configuration for backend
  - Sample test cases for APIs
  - Test fixtures and utilities
- Documentation:
  - Comprehensive README files
  - Deployment guide
  - API documentation structure
  - Development guidelines

### Changed
- Migrated from SQLite to PostgreSQL for production
- Updated API endpoint for purchase orders from `/resources/` to `/requests/`
- Improved error handling across frontend
- Enhanced responsive design for mobile devices

### Fixed
- Missing Card component causing frontend errors
- Peer dependency conflicts with React 19
- Frontend port conflict (5173 → 5174)

## [0.1.0] - 2024-01-XX

### Added
- Initial release with core functionality
- Basic CRUD operations for all modules
- REST API with Django REST Framework
- React frontend with Vite
- TailwindCSS styling
- React Query for state management

---

## Development Timeline

### Phase 1: Backend Setup ✅
- Django project initialization
- Database models for all modules
- REST API endpoints
- Admin interface configuration
- Authentication & permissions

### Phase 2: Frontend Core ✅
- React + Vite setup
- Routing with React Router
- API integration with React Query
- Common components library
- Layout components (Header, Sidebar)

### Phase 3: Feature Pages ✅
- Dashboard pages
- Project management pages
- Task management pages
- Contract pages
- Financial pages
- HR pages
- Resource pages
- Property pages
- Document pages

### Phase 4: Advanced Features ✅
- Kanban board with drag & drop
- Calendar view for tasks
- Gantt chart for projects
- Analytics dashboard with charts
- Notification system
- File management system
- Reports & export functionality

### Phase 5: DevOps & Deployment ✅
- Docker containerization
- docker-compose configuration
- Nginx setup
- CI/CD pipeline
- Testing infrastructure

### Phase 6: Testing & Documentation 🚧
- Unit tests (in progress)
- Integration tests (planned)
- E2E tests (planned)
- API documentation (planned)
- User manual (planned)

### Phase 7: Production Launch 📅
- SSL certificate setup (planned)
- Monitoring and logging (planned)
- Backup strategy (planned)
- Performance optimization (planned)
- Security hardening (planned)

---

## Version History

### 0.1.0 (Development)
- Initial development version
- Core features implemented
- Docker deployment ready
- CI/CD configured

### 1.0.0 (Upcoming)
- First production release
- Complete testing coverage
- Full documentation
- Production deployment

---

## Contributors

Thanks to all contributors who have helped shape this project!

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## License

This project is licensed under the MIT License - see the LICENSE file for details.
