This commit introduces a complete rewrite of the Tracks GTD application
in Go (Golang), providing a modern, performant alternative to the Ruby
on Rails implementation.
## Architecture & Technology Stack
- Language: Go 1.21+
- Web Framework: Gin
- ORM: GORM with SQLite/MySQL/PostgreSQL support
- Authentication: JWT with bcrypt password hashing
- Clean Architecture: Separated models, services, handlers, and middleware
## Implemented Features
### Core Models
- User: Authentication and user management
- Context: GTD contexts (@home, @work, etc.)
- Project: Project grouping and tracking
- Todo: Task management with state machine (active, completed, deferred, pending)
- Tag: Flexible tagging system with polymorphic associations
- Dependency: Todo dependencies with circular dependency detection
- Preference: User preferences and settings
- Note: Project notes
- Attachment: File attachment support (model only)
- RecurringTodo: Recurring task template (model only)
### API Endpoints
**Authentication:**
- POST /api/auth/login - User login
- POST /api/auth/register - User registration
- POST /api/auth/logout - User logout
- GET /api/me - Get current user
**Todos:**
- GET /api/todos - List todos with filtering
- POST /api/todos - Create todo
- GET /api/todos/:id - Get todo details
- PUT /api/todos/:id - Update todo
- DELETE /api/todos/:id - Delete todo
- POST /api/todos/:id/complete - Mark as completed
- POST /api/todos/:id/activate - Mark as active
- POST /api/todos/:id/defer - Defer to future date
- POST /api/todos/:id/dependencies - Add dependency
- DELETE /api/todos/:id/dependencies/:successor_id - Remove dependency
**Projects:**
- GET /api/projects - List projects
- POST /api/projects - Create project
- GET /api/projects/:id - Get project details
- PUT /api/projects/:id - Update project
- DELETE /api/projects/:id - Delete project
- POST /api/projects/:id/complete - Complete project
- POST /api/projects/:id/activate - Activate project
- POST /api/projects/:id/hide - Hide project
- POST /api/projects/:id/review - Mark as reviewed
- GET /api/projects/:id/stats - Get project statistics
**Contexts:**
- GET /api/contexts - List contexts
- POST /api/contexts - Create context
- GET /api/contexts/:id - Get context details
- PUT /api/contexts/:id - Update context
- DELETE /api/contexts/:id - Delete context
- POST /api/contexts/:id/hide - Hide context
- POST /api/contexts/:id/activate - Activate context
- POST /api/contexts/:id/close - Close context
- GET /api/contexts/:id/stats - Get context statistics
### Business Logic
**Todo State Management:**
- Active: Ready to work on
- Completed: Finished tasks
- Deferred: Future actions (show_from date)
- Pending: Blocked by dependencies
**Dependency Management:**
- Create blocking relationships between todos
- Automatic state transitions when blocking todos complete
- Circular dependency detection
- Automatic unblocking when prerequisites complete
**Tag System:**
- Polymorphic tagging for todos and recurring todos
- Automatic tag creation on first use
- Tag cloud support
**Project & Context Tracking:**
- State management (active, hidden, closed/completed)
- Statistics and health indicators
- Review tracking for projects
### Infrastructure
**Configuration:**
- Environment-based configuration
- Support for SQLite, MySQL, and PostgreSQL
- Configurable JWT secrets and token expiry
- Flexible server settings
**Database:**
- GORM for ORM
- Automatic migrations
- Connection pooling
- Multi-database support
**Authentication & Security:**
- JWT-based authentication
- Bcrypt password hashing
- Secure cookie support
- Token refresh mechanism
**Docker Support:**
- Multi-stage Dockerfile for optimized builds
- Docker Compose with PostgreSQL
- Volume mounting for data persistence
- Production-ready configuration
## Project Structure
```
cmd/tracks/ # Application entry point
internal/
config/ # Configuration management
database/ # Database setup and migrations
handlers/ # HTTP request handlers
middleware/ # Authentication middleware
models/ # Database models
services/ # Business logic layer
```
## Documentation
- README_GOLANG.md: Comprehensive documentation
- .env.example: Configuration template
- API documentation included in README
- Code comments for complex logic
## Future Work
The following features from the original Rails app are not yet implemented:
- Recurring todo instantiation logic
- Email integration (Mailgun/CloudMailin)
- Advanced statistics and analytics
- Import/Export functionality (CSV, YAML, XML)
- File upload handling for attachments
- Mobile views
- RSS/Atom feeds
- iCalendar export
## Benefits Over Rails Version
- Performance: Compiled binary, lower resource usage
- Deployment: Single binary, no runtime dependencies
- Type Safety: Compile-time type checking
- Concurrency: Better handling of concurrent requests
- Memory: Lower memory footprint
- Portability: Easy cross-platform compilation
## Testing
The code structure supports testing, though tests are not yet implemented.
Future work includes adding unit and integration tests.
