# Complete Implementation Plan for Onyx Phase 1

## Milestone 2: Transparent Versioning and onx save ✓ COMPLETED

### Filesystem Daemon Implementation

21. ✓ **Create daemon structure** (`internal/daemon/daemon.go`)
    - Implemented Daemon struct with repo, watcher, ticker, debounce, and shutdown channels
    - Added configuration support with Config struct
    - Implemented Start(), Stop(), and IsRunning() methods
    - Includes main event loop with proper goroutine management

22. ✓ **Implement filesystem watching** (`internal/daemon/watcher.go`)
    - Initialized fsnotify watcher
    - Added repository root to watch list with recursive directory walking
    - Implemented recursive subdirectory watching
    - Filtered out .git, .onx, and other ignored directories
    - Implemented debouncing (500ms default, configurable)

23. ✓ **Implement snapshot algorithm** (`internal/daemon/snapshot.go`)
    - Implemented CreateSnapshot() with full workflow:
      1. Read current workspace pointer from .onx/workspace
      2. Create tree from working directory state
      3. Create ephemeral commit with auto-generated message
      4. Update refs/onyx/workspaces/current reference
      5. Update .onx/workspace pointer with latest state
    - Added workspace state serialization/deserialization

24. ✓ **Create daemon entry point** (`cmd/onxd/main.go`)
    - Implemented command-line interface with cobra
    - Parse command line flags (repo path, interval, debounce)
    - Initialize daemon with configuration
    - Set up signal handlers (SIGTERM, SIGINT) for graceful shutdown
    - Run main loop with PID file management

25. ✓ **Implement daemon control** (`internal/commands/daemon.go`)
    - `onx daemon start` - Start background daemon with process detachment
    - `onx daemon stop` - Stop daemon gracefully using SIGTERM
    - `onx daemon status` - Check daemon status via PID file
    - PID file management in .onx/daemon.pid
    - Process lifecycle management with proper signal handling

### onx save Command

26. ✓ **Implement save command** (`internal/commands/save.go`)
    - Implemented Save() with complete workflow:
      1. Read current ephemeral commit from refs/onyx/workspaces/current
      2. Create new commit with user-provided message
      3. Determine next branch number based on workstream commit count
      4. Create branch ref (refs/onyx/workstreams/{name}/commit-{n})
      5. Update workstreams.json with new commit metadata
      6. Log to oplog via transaction support
    - Integrated with existing workstream model
    - Added transaction support for undo capability

27. ✓ **Add message validation**
    - Require non-empty message (enforced by cobra flag)
    - Validate message length (max 72 chars for title)
    - Support multi-line messages with -m flag
    - Proper error messages for validation failures

### Implementation Summary

All components of Milestone 2 have been successfully implemented:
- **Daemon**: Full filesystem monitoring with fsnotify, debouncing, and automatic snapshots
- **Save Command**: Complete integration with workstreams and oplog
- **Infrastructure**: PID file management, signal handling, transaction support
- **Testing**: All existing tests pass, binaries build successfully

The implementation provides a solid foundation for transparent versioning in Onyx.