# Pilot v2 - Implementation Status

**Date**: 2025-12-30
**Version**: 0.1.0

## Overview

Pilot v2 is a complete rewrite of the Python v1 in Rust with improved architecture, configuration management, and MQTT contract.

## Build Status

✅ **Builds successfully**: `cargo build` completes without errors
✅ **Tests passing**: All 5 unit tests pass (`cargo test`)
✅ **Runs with config**: Application loads and parses YAML configuration

## P0 Requirements Status

### ✅ Contrat MQTT stable et documente

**Status**: IMPLEMENTED

The MQTT contract is stable and documented in [architecture_v2.md](architecture_v2.md):

- Base topic: `pilot/<device>/...`
- **Topics implemented**:
  - `pilot/<device>/availability` - online/offline with LWT support
  - `pilot/<device>/status` - JSON with version, OS, uptime, backends
  - `pilot/<device>/capabilities` - JSON listing enabled features
  - `pilot/<device>/state/<name>` - Sensor states
  - `pilot/<device>/cmd/<action>/set` - Command reception

**Implemented in**: [mqtt/mod.rs](../pilot-v2/src/mqtt/mod.rs)

### ✅ Config YAML + validation

**Status**: IMPLEMENTED

- Config loading from multiple locations (`/etc/pilot/config.yaml`, `./config.yaml`)
- Full validation of required fields
- Structured config with device, MQTT, features, backends, publish settings
- Example config: [config/config.example.yaml](../config/config.example.yaml)

**Implemented in**: [config/mod.rs](../pilot-v2/src/config/mod.rs)

### ✅ LWT + status + capabilities

**Status**: IMPLEMENTED

- **LWT (Last Will Testament)**: Configured during MQTT connection, publishes "offline" on unexpected disconnect
- **Status**: Published as JSON with version, OS, uptime_s, last_error, backends
- **Capabilities**: Published as JSON listing available telemetry and commands

**Implemented in**:
- LWT: [mqtt/mod.rs:51-53](../pilot-v2/src/mqtt/mod.rs#L51-L53)
- Status/Capabilities: [runtime/mod.rs:41-43](../pilot-v2/src/runtime/mod.rs#L41-L43)

### ✅ Allowlist commandes + validation payloads

**Status**: IMPLEMENTED

- **Allowlist**: Configurable list of allowed commands in YAML
- **Validation**: Payload parsing with proper error handling (ON/OFF values)
- **Cooldown**: Per-command cooldown to prevent spam
- **Dry-run mode**: Testing without executing system commands

**Implemented in**: [commands/mod.rs:59-82](../pilot-v2/src/commands/mod.rs#L59-L82)

### ⚠️ Reflexion sur utilisation avec une web app

**Status**: NOT IMPLEMENTED (design phase)

**Notes**: This is a future consideration. The current MQTT contract is flexible enough to support a web app that:
- Subscribes to `pilot/+/status` to discover devices
- Subscribes to `pilot/+/capabilities` to know available commands
- Publishes to `pilot/<device>/cmd/<action>/set` to send commands
- Monitors `pilot/+/state/#` for telemetry

**Next steps**:
1. Document web app integration patterns
2. Consider adding HTTP API alongside MQTT
3. Create example web dashboard

### ⚠️ Reflexion integration devices type Proxmox

**Status**: NOT IMPLEMENTED (design phase)

**Notes**: Integration with Proxmox for VM start/stop requires:
- New command types beyond power/screen
- Proxmox API client library
- Authentication with Proxmox server
- VM enumeration and state tracking

**Next steps**:
1. Define MQTT contract for VM commands
2. Add Proxmox provider module
3. Extend capabilities system for VM management

## Core Functionality Status

### ✅ MQTT Client

- Connection with keepalive
- Username/password authentication support
- QoS configuration (0, 1, 2)
- Retain flag support
- LWT configuration
- Automatic reconnection (via rumqttc event loop)

**Implemented in**: [mqtt/mod.rs](../pilot-v2/src/mqtt/mod.rs)

### ✅ Configuration System

- YAML parsing with serde
- Multi-path config search (OS-specific + fallback)
- Validation of required fields
- Type-safe config structs

**Implemented in**: [config/mod.rs](../pilot-v2/src/config/mod.rs)

### ✅ Telemetry

**Implemented metrics**:
- CPU usage (%)
- Memory used (MB)
- Memory total (MB)
- IP address (local)
- Battery level (0-100%) - Linux only, auto-detected
- Battery state (charging/discharging/full/not_charging) - Linux only

**Missing from v1**:
- CPU temperature
- CPU frequency
- GPU metrics (temperature, memory)

**Implemented in**: [telemetry/mod.rs](../pilot-v2/src/telemetry/mod.rs)

### ✅ Command System

**Power commands** (Linux):
- Shutdown (systemctl/sudo)
- Reboot (systemctl/sudo)
- Sleep/Suspend (systemctl)

**Screen commands** (Linux):
- Screen on/off via GNOME busctl
- Screen on/off via X11 xset

**Power/Screen commands** (Windows):
- Stub implementation (logs only, needs completion)

**Implemented in**:
- [platform/linux/mod.rs](../pilot-v2/src/platform/linux/mod.rs)
- [platform/windows/mod.rs](../pilot-v2/src/platform/windows/mod.rs)

### ✅ Home Assistant Discovery

**Implemented entities**:
- Sensors: cpu_usage, memory_used_mb, memory_total_mb, ip_address, power_state
- Switches: shutdown, reboot, sleep, screen

**Discovery features**:
- Device info with identifiers, manufacturer, model, version
- Unique IDs per entity
- Availability topic linking
- Command topic for switches
- Unit of measurement and device class
- Custom icons

**Implemented in**: [ha/mod.rs](../pilot-v2/src/ha/mod.rs)

### ✅ Runtime & Event Loop

**Main loop handles**:
- Telemetry tick (configurable interval)
- Heartbeat tick (status + power_state publishing)
- MQTT event processing (incoming commands)
- Graceful shutdown (Ctrl+C handling)

**Implemented in**: [runtime/mod.rs](../pilot-v2/src/runtime/mod.rs)

## Missing Features

### From v1

1. **CPU Temperature**: Not yet implemented (requires platform-specific APIs)
2. **CPU Frequency Control**: V1 had slider for CPU frequency adjustment
3. **GPU Telemetry**: V1 supported NVIDIA GPU temperature and memory
4. **Battery Status**: V1 published battery level and state

### Security (P1)

1. **TLS/SSL**: MQTT over TLS not yet configured
2. **ACL**: Broker-side ACLs not documented
3. **HMAC/Signature** (P2): Advanced security not implemented

### Packaging (P1)

1. **Systemd service**: Template exists but not tested
2. **Windows service**: Not implemented
3. **Binary distribution**: No release builds or packages
4. **Install scripts**: No automated installation

## Testing Status

### ✅ Unit Tests

- Config parsing and validation
- Command action parsing
- Command value parsing
- Allowlist checks
- Cooldown mechanism

**Tests**: 5/5 passing

### ⚠️ Integration Tests

- MQTT end-to-end flow: NOT TESTED (manual only)
- Home Assistant discovery: NOT TESTED
- Platform backends: NOT TESTED

### ⚠️ Manual Testing

Manual test checklist exists in [tests_mqtt.md](tests_mqtt.md) but needs:
- Running MQTT broker
- Complete test execution documentation
- Test results recording

## Deployment Readiness

### Development Use: ✅ READY

- Can be run locally with `./scripts/run_pilot.sh`
- Dry-run mode prevents accidental system commands
- Configuration is well-documented

### Production Use: ⚠️ NOT READY

**Blockers**:
1. Windows backend needs implementation (currently stubs)
2. Missing telemetry from v1 (CPU temp, GPU, battery)
3. No systemd service testing
4. No TLS/authentication testing
5. No integration test suite

**Recommended before production**:
1. Complete Windows implementation
2. Add CPU temperature support
3. Test systemd service deployment
4. Add TLS configuration
5. Complete manual test checklist
6. Create installation documentation

## Next Development Steps

### Immediate (P0 completion)

1. ✅ Web app integration - Document patterns (no code needed yet)
2. ⚠️ Proxmox integration - Design phase only

### Short-term (Complete v2 parity with v1)

1. Add CPU temperature telemetry
2. Add battery status telemetry
3. Add GPU telemetry (multi-vendor)
4. Complete Windows backend implementation
5. Add CPU frequency control command

### Medium-term (P1 features)

1. TLS/SSL support for MQTT
2. Test and document systemd service
3. Create Windows service
4. Build release binaries
5. Create installation packages
6. GUI configuration tool (GNOME)

### Long-term (P2 features)

1. HMAC/signature-based security
2. Extended power states (hibernate, locked)
3. MQTT integration test suite
4. Web dashboard for device management
5. Proxmox VM control integration

## Conclusion

**Pilot v2 core implementation is functionally complete for Linux development use.**

The application successfully:
- Loads configuration from YAML
- Connects to MQTT broker with LWT
- Publishes telemetry at configured intervals
- Receives and executes commands with allowlist and cooldown
- Publishes Home Assistant discovery
- Handles graceful shutdown

**P0 requirements**: 4/4 technical requirements COMPLETE, 2/2 design considerations IN PROGRESS

**Ready for**: Local development, testing with Home Assistant, dry-run command validation

**Not ready for**: Production deployment, Windows environments, missing v1 telemetry features