feat(mqtt): IoT Bridge Phase 1.3 - Session Detection mit Integration Tests

- IoT Bridge Grundstruktur (config, logging, MQTT client)
- Session Detector mit 5-State-Machine und Aggregation
- Heartbeat Events alle 10s (configurable)
- Aggregation: interval_working_s, interval_standby_s, avg_power_w
- Unit Tests: 9/9 passed (session_detector)
- Integration Tests: 7/7 passed (mit Shelly Simulator)
- Lokaler Mosquitto Container Support (docker-compose.dev.yaml)
- --config CLI argument für main.py
- Auto-Reconnect und TLS Support

Test Coverage:
- Session Start/End Detection
- State Transitions (IDLE→STANDBY→WORKING)
- Heartbeat Emission mit Aggregation
- Multi-Device Parallel Sessions
- Timeout Detection (20s)

Phase 1.3  COMPLETE
This commit is contained in:
Matthias Lotz 2026-02-04 16:46:13 +01:00
parent 92f9548d34
commit c1df940daf
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# Implementation Plan: IoT Bridge & Odoo Integration
**Ziel:** Sidecar-Container-Architektur mit periodischer Session-Aggregation
**Stand:** 03.02.2026
**Strategie:** Bridge zuerst (standalone testbar), dann Odoo API, dann Integration
---
## 📦 Bestandsaufnahme
### Vorhanden (wiederverwendbar)
- ✅ `python_prototype/` - Standalone MQTT Client & Session Detector (Basis für Bridge)
- ✅ `services/mqtt_client.py` - Odoo-integrierter MQTT Client (Referenz)
- ✅ `services/session_detector.py` - State Machine Logik (portierbar)
- ✅ `services/parsers/shelly_parser.py` - Shelly PM Parser (direkt übernehmen)
- ✅ `models/` - Odoo Models (anzupassen)
- ✅ Mosquitto MQTT Broker (läuft)
### Neu zu erstellen
- ❌ `iot_bridge/` Container-Source (Skeleton existiert)
- ❌ Odoo REST API Controller
- ❌ Session-Aggregation in Bridge
- ❌ Odoo Session-Model mit Billing-Logik
- ❌ Docker Compose Integration
---
## 🎯 Phase 1: Bridge Container (Standalone)
**Ziel:** Bridge läuft unabhängig, loggt auf Console, nutzt YAML-Config
### 1.1 Bridge Grundstruktur ✅
- [x] `iot_bridge/config.yaml` erstellen (Device-Registry, MQTT Settings)
- [x] `iot_bridge/config.py` - Config Loader (YAML → Dataclass)
- [x] Mock-OdooClient (gibt hardcoded Config zurück, kein HTTP)
- [x] Logger Setup (structlog mit JSON output)
**Test:** ✅ Bridge startet, lädt Config, loggt Status (JSON), Graceful Shutdown funktioniert
---
---
### 1.2 MQTT Client portieren ✅
- [x] `python_prototype/mqtt_client.py``iot_bridge/mqtt_client.py`
- [x] Shelly Parser integrieren (copy from `services/parsers/`)
- [x] Connection Handling (reconnect, error handling)
- [x] Message-Callback registrieren
- [x] TLS/SSL Support (Port 8883)
**Test:** ✅ Bridge empfängt Shelly-Messages (40-55W), parst apower, loggt auf Console (JSON), TLS funktioniert
**Reconnect Test:** ✅ Broker neugestartet → Bridge disconnected (rc=7) → Auto-Reconnect → Re-Subscribe → Messages wieder empfangen
---
### 1.3 Session Detector mit Aggregation ✅
- [x] `session_detector.py` portieren (5-State Machine)
- [x] Aggregation-Logik hinzufügen:
- Interner State-Tracker (1s Updates)
- Timer für `heartbeat_interval_s`
- Berechnung: `interval_working_s`, `interval_standby_s`
- [x] Session-IDs generieren (UUID)
- [x] Events sammeln (event_callback)
- [x] Unit Tests (9 Tests, alle PASSED)
- [x] Shelly Simulator für Testing
- [x] Integration Tests (7 Tests, alle PASSED)
- [x] Lokaler Mosquitto Container (docker-compose.dev.yaml)
**Test:** ✅ Session gestartet (34.5W > 20W threshold), State-Machine funktioniert, Heartbeat-Events nach 10s
**Unit Tests:** ✅ 9/9 passed (test_session_detector.py)
**Integration Tests:** ✅ 7/7 passed (test_bridge_integration.py) - Session Start, Heartbeat, Multi-Device, Timeout
---
### 1.4 Event Queue & Retry
- [ ] In-Memory Queue für ausgehende Events
- [ ] Retry-Logik (exponential backoff)
- [ ] Event-UID Generierung (für Idempotenz)
- [ ] Queue-Statistiken (pending, sent, failed)
**Test:** Mock-Odoo-Client gibt 500 → Events in Queue → Retry nach Delay
---
### 1.5 Docker Container Build
- [ ] `Dockerfile` finalisieren (multi-stage, non-root user)
- [ ] `docker build -t iot_mqtt_bridge_for_odoo .`
- [ ] `docker run` mit Volume für config.yaml
- [ ] Health-Check (HTTP endpoint optional)
**Test:** Container startet, subscribed MQTT, loggt Events
---
## 🎯 Phase 2: Odoo REST API (parallel zu Phase 1)
**Ziel:** Odoo REST API für Bridge-Config und Event-Empfang
### 2.1 Models anpassen
- [ ] `ows.iot.device` Model:
- `device_id`, `mqtt_topic`, `parser_type` Felder
- `session_config` (JSON Field)
- `heartbeat_interval_s` Field
- [ ] `ows.iot.event` Model:
- `event_uid` (unique constraint)
- `event_type` (selection mit neuen Typen)
- `payload_json` (JSON Field)
- [ ] `ows.machine.session` Model:
- `session_id` (external, unique)
- `total_working_time_s`, `total_standby_time_s` (Float)
- `billing_units` (Computed Field)
- `state` (selection: running/stopped/timeout)
**Test:** Models upgraden, Demo-Daten anlegen
---
### 2.2 REST API Controller
- [ ] `controllers/iot_api.py` erstellen
- [ ] `GET /ows/iot/config`:
- Devices mit session_config zurückgeben
- Optional: Token-Auth (später)
- [ ] `POST /ows/iot/event`:
- Schema-Validation (event_type, payload)
- Event-UID Duplikat-Check → 409
- Event speichern
- Session updaten (oder erstellen)
**Test:**
```bash
curl http://localhost:8069/ows/iot/config
curl -X POST -d '{...}' http://localhost:8069/ows/iot/event
```
---
### 2.3 Session-Logik in Odoo
- [ ] `session_started` Handler:
- Neue Session erstellen
- `session_id` von Event übernehmen
- [ ] `session_heartbeat` Handler:
- Session finden (via `session_id`)
- `total_working_time_s += interval_working_s`
- `billing_units` neu berechnen
- [ ] `session_ended` Handler:
- Session schließen (`state = 'stopped'`)
**Test:** Mock-Events via curl → Session erscheint in Odoo UI → Billing korrekt
---
## 🎯 Phase 3: Integration & End-to-End
**Ziel:** Bridge ↔ Odoo kommunizieren, Docker Compose Setup
### 3.1 Bridge: Odoo Client implementieren
- [ ] `iot_bridge/odoo_client.py`:
- `get_config()` → HTTP GET zu Odoo
- `send_event()` → HTTP POST zu Odoo
- Error Handling (401, 409, 500)
- [ ] Config-Refresh alle 5 Min (von Odoo laden)
- [ ] ENV-Variablen: `ODOO_URL`, `MQTT_URL`
**Test:** Bridge holt Config von Odoo, sendet Events → Odoo empfängt
---
### 3.2 Docker Compose Setup
- [ ] `docker-compose.yaml` updaten:
- Service: `iot_bridge`
- Depends on: `odoo`, `mosquitto`
- ENV: `ODOO_URL=http://odoo:8069`
- [ ] `.env.example` mit Variablen
- [ ] README Update: Setup-Anleitung
**Test:** `docker compose up -d` → Bridge startet → Config von Odoo → Events in DB
---
### 3.3 End-to-End Tests
- [ ] Shelly PM einschalten → Session erscheint in Odoo
- [ ] Mehrere State-Wechsel → Heartbeat aggregiert korrekt
- [ ] Bridge Restart → Sessions werden recovered
- [ ] Odoo Config ändern → Bridge lädt neu
**Test:** Real-World-Szenario mit echter Hardware durchspielen
---
## 🎯 Phase 4: Polishing & Dokumentation
### 4.1 Error Handling & Monitoring
- [ ] Bridge: Structured Logging (JSON)
- [ ] Odoo: Event-Processing Errors loggen
- [ ] Metriken: Events sent/failed, Session count
- [ ] Health-Checks für beide Services
---
### 4.2 Dokumentation
- [ ] `iot_bridge/README.md` aktualisieren (ENV vars, Config)
- [ ] `DEPLOYMENT.md` - Produktiv-Setup Guide
- [ ] API Docs - REST Endpoints dokumentieren
- [ ] Troubleshooting Guide
---
## 📊 Dependency Graph
```
Phase 1.1-1.4 (Bridge Core)
Phase 1.5 (Docker)
Phase 2 (Odoo API) ← kann parallel zu 1.1-1.4
Phase 3.1 (Integration)
Phase 3.2-3.3 (E2E)
Phase 4 (Polish)
```
---
## 🚀 Quick Start (nächster Schritt)
**Jetzt starten mit:**
1. [ ] Phase 1.1: `iot_bridge/config.yaml` erstellen
2. [ ] Phase 1.2: MQTT Client portieren
3. [ ] Test: Bridge empfängt Shelly-Messages
**Empfohlene Reihenfolge:**
- Phase 1 komplett durchziehen (Bridge standalone funktionsfähig)
- Phase 2 parallel starten (Odoo API)
- Phase 3 Integration (wenn beides fertig)
---
## ✅ Definition of Done
**Phase 1 Done:**
- [ ] Bridge läuft als Docker Container
- [ ] Empfängt Shelly-Messages
- [ ] State-Detection + Aggregation funktioniert
- [ ] Loggt aggregierte Events auf Console
**Phase 2 Done:**
- [ ] Odoo REST API antwortet
- [ ] Events werden in DB gespeichert
- [ ] Sessions werden erstellt/aktualisiert
- [ ] Billing Units werden berechnet
**Phase 3 Done:**
- [ ] Bridge sendet Events an Odoo
- [ ] Docker Compose startet alles zusammen
- [ ] End-to-End Test erfolgreich
**Phase 4 Done:**
- [ ] Dokumentation vollständig
- [ ] Error Handling robust
- [ ] Produktiv-Ready

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# Python
__pycache__/
*.py[cod]
*$py.class
*.so
.Python
build/
develop-eggs/
dist/
downloads/
eggs/
.eggs/
lib/
lib64/
parts/
sdist/
var/
wheels/
*.egg-info/
.installed.cfg
*.egg
# Virtual Environment
venv/
ENV/
env/
# IDE
.vscode/
.idea/
*.swp
*.swo
*~
# Testing
.pytest_cache/
.coverage
htmlcov/
*.log
# Local config
.env
.env.local
config.local.yml
# SQLite (if using for retry queue)
*.db
*.sqlite3

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FROM python:3.11-slim
LABEL maintainer="Open Workshop MQTT IoT Bridge"
LABEL description="MQTT Bridge for Odoo IoT Device Integration"
WORKDIR /app
# Install dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
# Copy application code
COPY . .
# Create non-root user for security
RUN useradd -m -u 1000 bridge && \
chown -R bridge:bridge /app
USER bridge
# Health check (wenn implementiert)
# HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
# CMD python -c "import requests; requests.get('http://localhost:8080/health')"
# Run bridge
CMD ["python", "-u", "main.py"]

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# IoT MQTT Bridge for Odoo
**Separater Docker Container für MQTT-IoT-Device-Integration**
## Architektur-Übersicht
```
┌─────────────┐ MQTT ┌──────────────┐ REST API ┌────────────┐
│ Shelly PM │ ────────────────► │ IoT Bridge │ ──────────────► │ Odoo 18 │
│ (Hardware) │ │ (THIS!) │ │ (Business) │
└─────────────┘ └──────────────┘ └────────────┘
│ │
▼ │
┌──────────────┐ │
│ Mosquitto │ ◄──────────────────────┘
│ MQTT Broker │ (Config via API)
└──────────────┘
```
## Zweck
Die IoT Bridge ist ein **eigenständiger Python-Service** der:
1. **MQTT-Verbindung verwaltet**
- Subscribed auf Device-Topics (z.B. Shelly PM Mini G3)
- Auto-Reconnect bei Verbindungsabbruch
- Exponential Backoff
2. **Event-Normalisierung durchführt**
- Parser für verschiedene Device-Typen (Shelly, Tasmota, Generic)
- Konvertiert zu Unified Event Schema v1
- Generiert eindeutige Event-UIDs
3. **Session Detection** (State Machine)
- Dual-Threshold Detection (Standby/Working)
- Debounce Timer (Start/Stop)
- Timeout Detection
- 5-State Machine: IDLE → STARTING → STANDBY/WORKING → STOPPING
4. **Odoo-Kommunikation** (REST API)
- Holt Device-Config: `GET /ows/iot/config`
- Sendet Events: `POST /ows/iot/event`
- Bearer Token Authentication
- Retry-Queue bei Odoo-Ausfall
## Projekt-Struktur
```
iot_bridge/
├── main.py # Haupt-Entry-Point
├── mqtt_client.py # MQTT Client (paho-mqtt)
├── session_detector.py # State Machine für Session Detection
├── odoo_client.py # REST API Client für Odoo
├── config.py # Config Management (ENV + Odoo)
├── parsers/
│ ├── __init__.py
│ ├── base_parser.py # Abstract Parser Interface
│ ├── shelly_parser.py # Shelly PM Mini G3
│ ├── tasmota_parser.py # Tasmota (optional)
│ └── generic_parser.py # Generic JSON
├── requirements.txt # Python Dependencies
├── Dockerfile # Multi-stage Build
└── README.md # Dieses Dokument
```
## Konfiguration
### ENV-Variablen
Die Bridge wird ausschließlich über Umgebungsvariablen konfiguriert:
| Variable | Pflicht | Default | Beschreibung |
|----------|---------|---------|--------------|
| `ODOO_URL` | ✅ | - | Odoo Base-URL (z.B. `http://odoo:8069`) |
| `ODOO_TOKEN` | ✅ | - | API Token für Authentifizierung |
| `MQTT_URL` | ✅ | - | MQTT Broker URL (z.B. `mqtt://mosquitto:1883`) |
| `MQTT_USERNAME` | ❌ | `None` | MQTT Username (optional) |
| `MQTT_PASSWORD` | ❌ | `None` | MQTT Password (optional) |
| `LOG_LEVEL` | ❌ | `INFO` | Logging Level (`DEBUG`, `INFO`, `WARNING`, `ERROR`) |
| `CONFIG_REFRESH_INTERVAL` | ❌ | `300` | Config-Refresh in Sekunden (5 Min) |
### Odoo-Konfiguration
Die Bridge holt Device-spezifische Konfiguration von Odoo via:
**Request:** `GET /ows/iot/config`
**Response:**
```json
{
"devices": [
{
"device_id": "shellypmminig3-48f6eeb73a1c",
"mqtt_topic": "shaperorigin/status/pm1:0",
"parser_type": "shelly_pm_mini_g3",
"machine_name": "Shaper Origin",
"session_config": {
"strategy": "power_threshold",
"standby_threshold_w": 20,
"working_threshold_w": 100,
"start_debounce_s": 3,
"stop_debounce_s": 15,
"message_timeout_s": 20
}
}
]
}
```
## Event-Flow
### 1. MQTT Message empfangen
```python
# Topic: shaperorigin/status/pm1:0
# Payload (Shelly Format):
{
"id": 0,
"voltage": 234.7,
"current": 0.289,
"apower": 120.5, # ← Power-Wert!
"aenergy": { "total": 256.325 }
}
```
### 2. Parser normalisiert zu Event Schema v1
```python
{
"schema_version": "v1",
"event_uid": "b6d0a2c5-9b1f-4a0b-8b19-7f2e1b8f3d11",
"ts": "2026-01-31T10:30:15.123Z",
"device_id": "shellypmminig3-48f6eeb73a1c",
"event_type": "power_measurement",
"payload": {
"apower": 120.5,
"voltage": 234.7,
"current": 0.289,
"total_energy_kwh": 0.256325
}
}
```
### 3. Session Detector analysiert
```
State Machine:
IDLE (Power < 20W)
↓ Power > 100W
STARTING (Debounce 3s)
↓ 3s vergangen, Power > 100W
WORKING (Session läuft)
↓ Power < 100W
STOPPING (Debounce 15s)
↓ 15s vergangen, Power < 20W
IDLE (Session beendet)
```
### 4. Events an Odoo senden
**run_start Event:**
```python
POST /ows/iot/event
Authorization: Bearer <token>
{
"schema_version": "v1",
"event_uid": "...",
"event_type": "run_start",
"device_id": "shellypmminig3-48f6eeb73a1c",
"ts": "2026-01-31T10:30:18.500Z",
"payload": {
"power_w": 120.5,
"reason": "power_threshold"
}
}
```
**run_stop Event:**
```python
POST /ows/iot/event
{
"event_type": "run_stop",
"payload": {
"power_w": 8.2,
"reason": "normal",
"duration_s": 187.3
}
}
```
## Docker Integration
### Dockerfile
```dockerfile
FROM python:3.11-slim
WORKDIR /app
# Install dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
# Copy application
COPY . .
# Run as non-root
RUN useradd -m -u 1000 bridge && chown -R bridge:bridge /app
USER bridge
CMD ["python", "-u", "main.py"]
```
### docker-compose.yaml
```yaml
services:
iot_bridge:
image: iot_mqtt_bridge_for_odoo
build:
context: ./extra-addons/open_workshop/open_workshop_mqtt/iot_bridge
environment:
ODOO_URL: http://odoo:8069
ODOO_TOKEN: ${IOT_BRIDGE_TOKEN}
MQTT_URL: mqtt://mosquitto:1883
LOG_LEVEL: INFO
depends_on:
- odoo
- mosquitto
networks:
- odoo_network
restart: unless-stopped
```
## Development
### Lokales Testen
```bash
# 1. Python Dependencies installieren
cd iot_bridge/
python -m venv venv
source venv/bin/activate # Linux/Mac
pip install -r requirements.txt
# 2. ENV-Variablen setzen
export ODOO_URL=http://localhost:8069
export ODOO_TOKEN=your-token-here
export MQTT_URL=mqtt://localhost:1883
export LOG_LEVEL=DEBUG
# 3. Bridge starten
python main.py
```
### Docker Build & Run
```bash
# Build
docker build -t iot_mqtt_bridge_for_odoo .
# Run
docker run --rm \
-e ODOO_URL=http://odoo:8069 \
-e ODOO_TOKEN=your-token \
-e MQTT_URL=mqtt://mosquitto:1883 \
iot_mqtt_bridge_for_odoo
```
## Monitoring
### Logs
```bash
# Docker Container Logs
docker compose logs -f iot_bridge
# Wichtige Log-Events:
# - [INFO] Bridge started, connecting to MQTT...
# - [INFO] MQTT connected, subscribing to topics...
# - [INFO] Config loaded: 3 devices
# - [DEBUG] Message received: topic=..., power=120.5W
# - [INFO] Session started: device=..., session_id=...
# - [WARNING] Odoo API error, retrying in 5s...
```
### Health Check
Die Bridge sollte einen Health-Check-Endpoint anbieten:
```python
# GET http://bridge:8080/health
{
"status": "ok",
"mqtt_connected": true,
"odoo_reachable": true,
"devices_configured": 3,
"active_sessions": 1,
"uptime_seconds": 3600
}
```
## Fehlerbehandlung
### MQTT Disconnect
- Auto-Reconnect mit Exponential Backoff
- Topics werden nach Reconnect neu subscribed
- Laufende Sessions werden **nicht** beendet
### Odoo Unreachable
- Events werden in lokaler Queue gespeichert (in-memory oder SQLite)
- Retry alle 5 Sekunden
- Max. 1000 Events in Queue (älteste werden verworfen)
### Config-Reload
- Alle 5 Minuten: `GET /ows/iot/config`
- Neue Devices → subscribe Topics
- Gelöschte Devices → unsubscribe Topics
- Geänderte Schwellenwerte → SessionDetector aktualisieren
## Testing
### Unit Tests
```bash
pytest tests/test_session_detector.py -v
pytest tests/test_parsers.py -v
pytest tests/test_odoo_client.py -v
```
### Integration Tests
```bash
# Requires: Running MQTT Broker + Odoo instance
pytest tests/integration/ -v
```
## Production Deployment
### Best Practices
1. **Token Security**
- Token in `.env` (nicht in Git)
- Regelmäßige Token-Rotation
- Separate Tokens pro Umgebung (dev/staging/prod)
2. **Logging**
- `LOG_LEVEL=INFO` in Production
- `LOG_LEVEL=DEBUG` nur für Troubleshooting
- Log-Aggregation (z.B. via Docker Logging Driver)
3. **Monitoring**
- Health-Check in Docker Compose
- Alerts bei Container-Restart
- Metrics: Events/s, Queue-Größe, Odoo-Latenz
4. **Scaling**
- Eine Bridge-Instanz pro MQTT-Broker
- Mehrere Broker → mehrere Bridge-Container
- Shared Subscriptions (MQTT 5.0) für Load-Balancing
## Roadmap
### Phase 1 (MVP)
- [x] Architektur-Design
- [ ] MQTT Client Implementation
- [ ] Shelly Parser
- [ ] Session Detector (aus Odoo portiert)
- [ ] Odoo REST Client
- [ ] Dockerfile
### Phase 2 (Features)
- [ ] Retry-Queue (SQLite)
- [ ] Health-Check-Endpoint
- [ ] Tasmota Parser
- [ ] Generic JSON Parser
- [ ] Config-Hot-Reload
### Phase 3 (Production)
- [ ] Integration Tests
- [ ] Docker Compose Example
- [ ] Deployment Guide
- [ ] Monitoring Dashboard
- [ ] Performance Tuning
## License
LGPL-3 (same as Odoo)

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"""Configuration loader for IoT Bridge."""
import yaml
from dataclasses import dataclass
from pathlib import Path
from typing import List, Optional
@dataclass
class MQTTConfig:
broker: str
port: int
username: Optional[str] = None
password: Optional[str] = None
client_id: str = "iot_bridge"
keepalive: int = 60
use_tls: bool = False
@dataclass
class OdooConfig:
url: Optional[str] = None
token: Optional[str] = None
use_mock: bool = True
@dataclass
class LoggingConfig:
level: str = "INFO"
format: str = "json"
@dataclass
class SessionConfig:
strategy: str
standby_threshold_w: float
working_threshold_w: float
start_debounce_s: float
stop_debounce_s: float
message_timeout_s: float
heartbeat_interval_s: float
@dataclass
class DeviceConfig:
device_id: str
mqtt_topic: str
parser_type: str
machine_name: str
session_config: SessionConfig
@dataclass
class BridgeConfig:
mqtt: MQTTConfig
odoo: OdooConfig
logging: LoggingConfig
devices: List[DeviceConfig]
def load_config(config_path: str = "config.yaml") -> BridgeConfig:
"""Load configuration from YAML file."""
path = Path(config_path)
if not path.exists():
raise FileNotFoundError(f"Config file not found: {config_path}")
with open(path, 'r') as f:
data = yaml.safe_load(f)
mqtt_config = MQTTConfig(**data['mqtt'])
odoo_config = OdooConfig(**data.get('odoo', {}))
logging_config = LoggingConfig(**data.get('logging', {}))
devices = []
for dev_data in data.get('devices', []):
session_cfg = SessionConfig(**dev_data['session_config'])
device = DeviceConfig(
device_id=dev_data['device_id'],
mqtt_topic=dev_data['mqtt_topic'],
parser_type=dev_data['parser_type'],
machine_name=dev_data['machine_name'],
session_config=session_cfg
)
devices.append(device)
return BridgeConfig(
mqtt=mqtt_config,
odoo=odoo_config,
logging=logging_config,
devices=devices
)

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# IoT Bridge Configuration
# This file is used when running the bridge standalone (without Odoo API)
# WARNING: Contains credentials - DO NOT commit to git!
mqtt:
broker: "mqtt.majufilo.eu"
port: 8883
username: "mosquitto"
password: "jer7Pehr"
client_id: "iot_bridge_standalone"
keepalive: 60
use_tls: true
odoo:
# URL for Odoo API (when not using mock)
# url: "http://localhost:8069"
# token: ""
use_mock: true
logging:
level: "INFO" # DEBUG, INFO, WARNING, ERROR
format: "json" # json or text
devices:
- device_id: "shellypmminig3-48f6eeb73a1c"
mqtt_topic: "shaperorigin/status/pm1:0"
parser_type: "shelly_pm_mini_g3"
machine_name: "Shaper Origin"
session_config:
strategy: "power_threshold"
standby_threshold_w: 20
working_threshold_w: 100
start_debounce_s: 3
stop_debounce_s: 15
message_timeout_s: 20
heartbeat_interval_s: 30 # 30 seconds for testing (300 = 5 minutes in production)

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# IoT Bridge Configuration Example
# Copy this file to config.yaml and fill in your values
mqtt:
broker: "your-mqtt-broker.com"
port: 8883 # 1883 for unencrypted, 8883 for TLS
username: "your_username"
password: "your_password"
client_id: "iot_bridge_standalone"
keepalive: 60
use_tls: true # Set to true for port 8883
odoo:
# URL for Odoo API (when not using mock)
# url: "http://localhost:8069"
# token: ""
use_mock: true
logging:
level: "INFO" # DEBUG, INFO, WARNING, ERROR
format: "json" # json or text
devices:
- device_id: "shellypmminig3-48f6eeb73a1c"
mqtt_topic: "shaperorigin/status/pm1:0"
parser_type: "shelly_pm_mini_g3"
machine_name: "Shaper Origin"
session_config:
strategy: "power_threshold"
standby_threshold_w: 20
working_threshold_w: 100
start_debounce_s: 3
stop_debounce_s: 15
message_timeout_s: 20
heartbeat_interval_s: 300 # 5 minutes

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"""Logging setup for IoT Bridge."""
import logging
import structlog
from config import LoggingConfig
def setup_logging(config: LoggingConfig):
"""Configure structured logging with structlog."""
# Set log level
log_level = getattr(logging, config.level.upper(), logging.INFO)
logging.basicConfig(level=log_level)
# Configure structlog
if config.format == "json":
renderer = structlog.processors.JSONRenderer()
else:
renderer = structlog.dev.ConsoleRenderer()
structlog.configure(
processors=[
structlog.stdlib.filter_by_level,
structlog.stdlib.add_logger_name,
structlog.stdlib.add_log_level,
structlog.processors.TimeStamper(fmt="iso"),
structlog.processors.StackInfoRenderer(),
structlog.processors.format_exc_info,
renderer,
],
context_class=dict,
logger_factory=structlog.stdlib.LoggerFactory(),
cache_logger_on_first_use=True,
)
return structlog.get_logger()

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#!/usr/bin/env python3
"""
IoT Bridge Main Entry Point
"""
import sys
import signal
import os
import argparse
from pathlib import Path
from config import load_config
from logger_setup import setup_logging
from odoo_client import MockOdooClient, OdooClient
from mqtt_client import MQTTClient
from shelly_parser import ShellyParser
from session_detector import SessionDetector
# Global flag for graceful shutdown
shutdown_flag = False
mqtt_client = None
session_detectors = {}
def signal_handler(signum, frame):
"""Handle shutdown signals."""
global shutdown_flag
print(f"\nReceived signal {signum}, shutting down gracefully...")
shutdown_flag = True
def on_event_generated(event, logger, odoo_client):
"""Handle events from session detector."""
logger.info(f"event_generated type={event['event_type']} device={event['device_id']} session_id={event.get('session_id', 'N/A')[:8]}")
# Send to Odoo (currently mock)
try:
response = odoo_client.send_event(event)
logger.debug(f"event_sent_to_odoo response={response}")
except Exception as e:
logger.error(f"event_send_failed error={str(e)}")
def on_mqtt_message(topic: str, payload: dict, logger, parser, device_id, detector):
"""Handle incoming MQTT messages."""
# Parse message
parsed = parser.parse_message(topic, payload)
if parsed and parsed.get('apower') is not None:
power_w = parsed['apower']
# Process in session detector
from datetime import datetime
detector.process_power_measurement(power_w, datetime.utcnow())
logger.debug(f"power_measurement device={device_id} power={power_w}W state={detector.state}")
def main():
"""Main entry point for IoT Bridge."""
global shutdown_flag, mqtt_client, session_detectors
# Parse command line arguments
parser = argparse.ArgumentParser(description='IoT MQTT Bridge for Odoo')
parser.add_argument('--config', type=str, default='config.yaml',
help='Path to configuration file (default: config.yaml)')
args = parser.parse_args()
# Register signal handlers
signal.signal(signal.SIGINT, signal_handler)
signal.signal(signal.SIGTERM, signal_handler)
# Load configuration (--config argument overrides BRIDGE_CONFIG env var)
config_path = args.config if args.config != 'config.yaml' else os.getenv("BRIDGE_CONFIG", "config.yaml")
print(f"Loading configuration from {config_path}")
try:
config = load_config(config_path)
except FileNotFoundError as e:
print(f"ERROR: {e}")
sys.exit(1)
except Exception as e:
print(f"ERROR: Failed to load config: {e}")
sys.exit(1)
# Setup logging
logger = setup_logging(config.logging)
logger.info("bridge_started", config_file=config_path, devices=len(config.devices))
# Initialize Odoo client
if config.odoo.use_mock:
logger.info("using_mock_odoo_client")
odoo_client = MockOdooClient(config.devices)
else:
logger.info("using_real_odoo_client", url=config.odoo.url)
odoo_client = OdooClient(config.odoo.url, config.odoo.token)
# Test config loading
try:
device_config = odoo_client.get_config()
logger.info("config_loaded", device_count=len(device_config.get("devices", [])))
except Exception as e:
logger.error("config_load_failed", error=str(e))
sys.exit(1)
# Initialize Session Detectors (one per device)
parser = ShellyParser()
for device in config.devices:
session_cfg = device.session_config
detector = SessionDetector(
device_id=device.device_id,
machine_name=device.machine_name,
standby_threshold_w=session_cfg.standby_threshold_w,
working_threshold_w=session_cfg.working_threshold_w,
start_debounce_s=session_cfg.start_debounce_s,
stop_debounce_s=session_cfg.stop_debounce_s,
message_timeout_s=session_cfg.message_timeout_s,
heartbeat_interval_s=session_cfg.heartbeat_interval_s,
event_callback=lambda evt: on_event_generated(evt, logger, odoo_client)
)
session_detectors[device.device_id] = detector
logger.info(f"session_detector_initialized device={device.device_id} machine={device.machine_name}")
# Initialize MQTT client
topics = [device.mqtt_topic for device in config.devices]
# Create device mapping for message routing
device_map = {device.mqtt_topic: device.device_id for device in config.devices}
def mqtt_callback(topic, payload):
device_id = device_map.get(topic)
if device_id and device_id in session_detectors:
on_mqtt_message(topic, payload, logger, parser, device_id, session_detectors[device_id])
mqtt_client = MQTTClient(
broker=config.mqtt.broker,
port=config.mqtt.port,
topics=topics,
message_callback=mqtt_callback,
username=config.mqtt.username,
password=config.mqtt.password,
client_id=config.mqtt.client_id,
use_tls=getattr(config.mqtt, 'use_tls', False)
)
# Connect to MQTT
if not mqtt_client.connect():
logger.error("mqtt_connection_failed")
sys.exit(1)
mqtt_client.start()
if not mqtt_client.wait_for_connection(timeout=10):
logger.error("mqtt_connection_timeout")
sys.exit(1)
logger.info("bridge_ready", status="running")
print("Bridge is running. Press Ctrl+C to stop.")
# Main loop
while not shutdown_flag:
import time
time.sleep(1)
# Check for timeouts
from datetime import datetime
current_time = datetime.utcnow()
for detector in session_detectors.values():
detector.check_timeout(current_time)
# Shutdown
logger.info("bridge_shutdown", status="stopping")
mqtt_client.stop()
logger.info("bridge_shutdown", status="stopped")
print("Bridge stopped.")
if __name__ == "__main__":
main()
"""Main IoT Bridge Application"""
def __init__(self):
self.running = False
self.mqtt_client = None
self.odoo_client = None
self.config = {}
# Setup signal handlers for graceful shutdown
signal.signal(signal.SIGTERM, self._handle_shutdown)
signal.signal(signal.SIGINT, self._handle_shutdown)
def _handle_shutdown(self, signum, frame):
"""Handle shutdown signals"""
logger.info(f"Received signal {signum}, shutting down gracefully...")
self.running = False
def load_config(self):
"""Load configuration from environment variables"""
required_vars = ['ODOO_URL', 'ODOO_TOKEN', 'MQTT_URL']
for var in required_vars:
if not os.getenv(var):
logger.error(f"Missing required environment variable: {var}")
sys.exit(1)
self.config = {
'odoo_url': os.getenv('ODOO_URL'),
'odoo_token': os.getenv('ODOO_TOKEN'),
'mqtt_url': os.getenv('MQTT_URL'),
'mqtt_username': os.getenv('MQTT_USERNAME'),
'mqtt_password': os.getenv('MQTT_PASSWORD'),
'config_refresh_interval': int(os.getenv('CONFIG_REFRESH_INTERVAL', '300')),
}
logger.info(f"Configuration loaded:")
logger.info(f" Odoo URL: {self.config['odoo_url']}")
logger.info(f" MQTT URL: {self.config['mqtt_url']}")
logger.info(f" Config Refresh: {self.config['config_refresh_interval']}s")
def initialize(self):
"""Initialize MQTT and Odoo clients"""
logger.info("Initializing IoT Bridge...")
# TODO: Initialize Odoo REST client
# from odoo_client import OdooClient
# self.odoo_client = OdooClient(
# base_url=self.config['odoo_url'],
# token=self.config['odoo_token']
# )
# TODO: Fetch initial device config from Odoo
# devices = self.odoo_client.get_config()
# logger.info(f"Loaded {len(devices)} devices from Odoo")
# TODO: Initialize MQTT client
# from mqtt_client import MqttBridgeClient
# self.mqtt_client = MqttBridgeClient(
# broker_url=self.config['mqtt_url'],
# username=self.config['mqtt_username'],
# password=self.config['mqtt_password'],
# on_message_callback=self.on_mqtt_message
# )
# TODO: Subscribe to device topics
# for device in devices:
# self.mqtt_client.subscribe(device['mqtt_topic'])
logger.info("IoT Bridge initialized successfully")
def on_mqtt_message(self, topic: str, payload: str):
"""
Callback for incoming MQTT messages
Flow:
1. Parse message (via parser)
2. Process through SessionDetector
3. Send event to Odoo (if needed)
"""
logger.debug(f"Received MQTT message: topic={topic}, payload={payload[:100]}")
# TODO: Implement message processing
# 1. Find matching device (by topic)
# 2. Parse payload (via device's parser)
# 3. Pass to SessionDetector
# 4. Send events to Odoo
def run(self):
"""Main run loop"""
logger.info("Starting IoT Bridge...")
self.running = True
try:
self.load_config()
self.initialize()
# TODO: Connect MQTT client
# self.mqtt_client.connect()
last_config_refresh = time.time()
# Main loop
while self.running:
# Sleep 1 second
time.sleep(1.0)
# Refresh config periodically
current_time = time.time()
if current_time - last_config_refresh > self.config['config_refresh_interval']:
logger.info("Refreshing device configuration from Odoo...")
# TODO: self.odoo_client.get_config()
last_config_refresh = current_time
logger.info("IoT Bridge stopped")
except KeyboardInterrupt:
logger.info("Interrupted by user")
except Exception as e:
logger.error(f"Fatal error: {e}", exc_info=True)
sys.exit(1)
finally:
self.shutdown()
def shutdown(self):
"""Cleanup on shutdown"""
logger.info("Shutting down IoT Bridge...")
# TODO: Disconnect MQTT client
# if self.mqtt_client:
# self.mqtt_client.disconnect()
logger.info("Shutdown complete")
def main():
"""Entry point"""
logger.info("=" * 60)
logger.info("IoT MQTT Bridge for Odoo")
logger.info("Version: 1.0.0 (Development)")
logger.info("=" * 60)
bridge = IotBridge()
bridge.run()
if __name__ == '__main__':
main()

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"""MQTT Client for IoT Bridge - connects to broker and receives device events."""
import json
import logging
import time
from typing import Callable, Optional, List
import paho.mqtt.client as mqtt
logger = logging.getLogger(__name__)
class MQTTClient:
"""MQTT Client wrapper for device event reception."""
def __init__(self, broker: str, port: int, topics: List[str],
message_callback: Optional[Callable] = None,
username: Optional[str] = None,
password: Optional[str] = None,
client_id: str = "iot_bridge",
use_tls: bool = False):
"""
Initialize MQTT Client.
Args:
broker: MQTT broker hostname
port: MQTT broker port
topics: List of topics to subscribe to
message_callback: Callback(topic, payload_dict) for incoming messages
username: Optional MQTT username
password: Optional MQTT password
client_id: MQTT client ID
"""
self.broker = broker
self.port = port
self.topics = topics
self.message_callback = message_callback
# Create MQTT Client (v5)
self.client = mqtt.Client(
client_id=client_id,
protocol=mqtt.MQTTv5
)
# Set callbacks
self.client.on_connect = self._on_connect
self.client.on_disconnect = self._on_disconnect
self.client.on_message = self._on_message
# Auth
if username and password:
self.client.username_pw_set(username, password)
# TLS/SSL for port 8883
if use_tls or port == 8883:
import ssl
self.client.tls_set(cert_reqs=ssl.CERT_NONE)
self.client.tls_insecure_set(True)
logger.info(f"tls_enabled port={port}")
self.connected = False
self.reconnect_delay = 1
self.max_reconnect_delay = 60
logger.info(f"MQTT Client initialized for {broker}:{port}")
def _on_connect(self, client, userdata, flags, rc, properties=None):
"""Callback when connected to MQTT broker."""
if rc == 0:
self.connected = True
self.reconnect_delay = 1
logger.info(f"connected_to_mqtt broker={self.broker} port={self.port}")
# Subscribe to all topics
for topic in self.topics:
self.client.subscribe(topic)
logger.info(f"subscribed_to_topic topic={topic}")
else:
logger.error(f"mqtt_connection_failed rc={rc}")
self.connected = False
def _on_disconnect(self, client, userdata, rc, properties=None):
"""Callback when disconnected from MQTT broker."""
self.connected = False
if rc != 0:
logger.warning(f"mqtt_unexpected_disconnect rc={rc}")
# Auto-reconnect handled by paho
else:
logger.info("mqtt_disconnected")
def _on_message(self, client, userdata, msg):
"""Callback when message received."""
try:
topic = msg.topic
payload = msg.payload.decode('utf-8')
# Try JSON parse
try:
payload_json = json.loads(payload)
except json.JSONDecodeError:
logger.debug(f"non_json_message topic={topic}")
payload_json = None
# Call user callback
if self.message_callback and payload_json:
self.message_callback(topic, payload_json)
except Exception as e:
logger.error(f"message_processing_error error={str(e)} topic={msg.topic}")
def connect(self) -> bool:
"""Connect to MQTT broker."""
try:
logger.info(f"connecting_to_mqtt broker={self.broker} port={self.port}")
self.client.connect(self.broker, self.port, keepalive=60)
return True
except Exception as e:
logger.error(f"mqtt_connect_error error={str(e)}")
return False
def start(self):
"""Start MQTT client loop (non-blocking)."""
self.client.loop_start()
logger.info("mqtt_loop_started")
def stop(self):
"""Stop MQTT client loop."""
self.client.loop_stop()
self.client.disconnect()
logger.info("mqtt_client_stopped")
def wait_for_connection(self, timeout: int = 10) -> bool:
"""
Wait for connection to be established.
Args:
timeout: Maximum seconds to wait
Returns:
True if connected, False if timeout
"""
start_time = time.time()
while not self.connected and (time.time() - start_time) < timeout:
time.sleep(0.1)
return self.connected

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"""Odoo API Client - handles communication with Odoo REST API."""
import logging
from typing import List, Dict, Any
from dataclasses import asdict
from config import DeviceConfig
logger = logging.getLogger(__name__)
class MockOdooClient:
"""Mock Odoo client for standalone testing."""
def __init__(self, devices: List[DeviceConfig]):
"""Initialize with hardcoded device config."""
self.devices = devices
logger.info("MockOdooClient initialized with %d devices", len(devices))
def get_config(self) -> Dict[str, Any]:
"""Return hardcoded device configuration."""
devices_data = []
for device in self.devices:
devices_data.append({
"device_id": device.device_id,
"mqtt_topic": device.mqtt_topic,
"parser_type": device.parser_type,
"machine_name": device.machine_name,
"session_config": asdict(device.session_config)
})
logger.debug("Returning config for %d devices", len(devices_data))
return {"devices": devices_data}
def send_event(self, event: Dict[str, Any]) -> Dict[str, Any]:
"""Mock event sending - just log it."""
logger.info(
"MOCK: Would send event type=%s device=%s",
event.get("event_type"),
event.get("device_id")
)
return {
"status": "ok",
"event_id": 999,
"session_id": 123
}
class OdooClient:
"""Real Odoo API client (to be implemented)."""
def __init__(self, url: str, token: str):
self.url = url
self.token = token
logger.info("OdooClient initialized for %s", url)
def get_config(self) -> Dict[str, Any]:
"""Fetch device configuration from Odoo."""
# TODO: Implement HTTP GET to /ows/iot/config
raise NotImplementedError("Real Odoo client not yet implemented")
def send_event(self, event: Dict[str, Any]) -> Dict[str, Any]:
"""Send event to Odoo."""
# TODO: Implement HTTP POST to /ows/iot/event
raise NotImplementedError("Real Odoo client not yet implemented")

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# IoT Bridge - Python Dependencies
# MQTT Client
paho-mqtt>=2.0.0
# HTTP Client
requests>=2.31.0
# Structured Logging
structlog>=23.1.0
# Configuration
pyyaml>=6.0
# HTTP Client for Odoo API
requests>=2.31.0
# Configuration & ENV
python-dotenv>=1.0.0
# Logging
structlog>=24.1.0
# Retry-Queue (optional, wenn SQLite verwendet wird)
# sqlalchemy>=2.0.0
# Testing
pytest>=8.0.0
pytest-cov>=4.1.0
pytest-asyncio>=0.23.0
# Type Hints
typing-extensions>=4.9.0

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"""
Session Detector with Aggregation - State Machine for IoT Bridge
State Machine:
IDLE STARTING STANDBY WORKING STOPPING IDLE
IDLE (STANDBY WORKING)
Aggregation:
- Tracks state internally every message (1 msg/s)
- Accumulates interval_working_s, interval_standby_s
- Emits aggregated heartbeat events every heartbeat_interval_s (e.g., 300s)
"""
import logging
import uuid
from datetime import datetime, timedelta
from typing import Optional, Dict, Callable
logger = logging.getLogger(__name__)
class SessionDetector:
"""
State Machine for Power-Based Session Detection with Aggregation.
Emits events:
- session_started: When session begins
- session_heartbeat: Periodic aggregated updates
- session_ended: When session ends normally
- session_timeout: When session times out
"""
def __init__(self, device_id: str, machine_name: str,
standby_threshold_w: float,
working_threshold_w: float,
start_debounce_s: float,
stop_debounce_s: float,
message_timeout_s: float,
heartbeat_interval_s: float,
event_callback: Optional[Callable] = None):
"""
Initialize Session Detector.
Args:
device_id: Device identifier
machine_name: Human-readable machine name
standby_threshold_w: Power threshold for session start (e.g., 20W)
working_threshold_w: Power threshold for working state (e.g., 100W)
start_debounce_s: Debounce time for session start (e.g., 3s)
stop_debounce_s: Debounce time for session stop (e.g., 15s)
message_timeout_s: Max time without messages before timeout (e.g., 20s)
heartbeat_interval_s: Interval for aggregated heartbeat events (e.g., 300s)
event_callback: Callback function(event_dict) for emitting events
"""
self.device_id = device_id
self.machine_name = machine_name
self.standby_threshold_w = standby_threshold_w
self.working_threshold_w = working_threshold_w
self.start_debounce_s = start_debounce_s
self.stop_debounce_s = stop_debounce_s
self.message_timeout_s = message_timeout_s
self.heartbeat_interval_s = heartbeat_interval_s
self.event_callback = event_callback
# State
self.state = 'idle'
self.current_session_id: Optional[str] = None
# Timing
self.state_entered_at: Optional[datetime] = None
self.last_message_time: Optional[datetime] = None
self.session_start_time: Optional[datetime] = None
self.last_heartbeat_time: Optional[datetime] = None
# Aggregation counters (since last heartbeat)
self.interval_working_s = 0.0
self.interval_standby_s = 0.0
self.interval_power_samples = []
self.interval_state_changes = 0
# Total counters (entire session)
self.total_working_s = 0.0
self.total_standby_s = 0.0
logger.info(f"SessionDetector initialized device={device_id} machine={machine_name} "
f"standby={standby_threshold_w}W working={working_threshold_w}W "
f"heartbeat={heartbeat_interval_s}s")
def process_power_measurement(self, power_w: float, timestamp: datetime):
"""
Process a power measurement.
Args:
power_w: Power in watts
timestamp: Measurement timestamp
"""
self.last_message_time = timestamp
# State machine
if self.state == 'idle':
self._handle_idle(power_w, timestamp)
elif self.state == 'starting':
self._handle_starting(power_w, timestamp)
elif self.state == 'standby':
self._handle_standby(power_w, timestamp)
elif self.state == 'working':
self._handle_working(power_w, timestamp)
elif self.state == 'stopping':
self._handle_stopping(power_w, timestamp)
# Collect power sample for aggregation
if self.current_session_id:
self.interval_power_samples.append(power_w)
# Check for heartbeat emission
if self.current_session_id and self.last_heartbeat_time:
time_since_heartbeat = (timestamp - self.last_heartbeat_time).total_seconds()
if time_since_heartbeat >= self.heartbeat_interval_s:
self._emit_heartbeat(timestamp)
def _handle_idle(self, power_w: float, timestamp: datetime):
"""IDLE State: Wait for power above standby threshold."""
if power_w > self.standby_threshold_w:
self._transition_to('starting', timestamp)
def _handle_starting(self, power_w: float, timestamp: datetime):
"""STARTING State: Debounce period before confirming session start."""
if power_w < self.standby_threshold_w:
logger.info(f"device={self.device_id} power_dropped_during_starting back_to=idle")
self._transition_to('idle', timestamp)
return
time_in_state = (timestamp - self.state_entered_at).total_seconds()
if time_in_state >= self.start_debounce_s:
self._start_session(power_w, timestamp)
self._transition_to('standby', timestamp)
def _handle_standby(self, power_w: float, timestamp: datetime):
"""STANDBY State: Session running at low power."""
# Accumulate standby time
if self.state_entered_at:
time_in_state = (timestamp - self.state_entered_at).total_seconds()
self.interval_standby_s += time_in_state
self.total_standby_s += time_in_state
if power_w < self.standby_threshold_w:
self._transition_to('stopping', timestamp)
elif power_w > self.working_threshold_w:
self._transition_to('working', timestamp)
else:
# Stay in standby, update state entry time for next increment
self.state_entered_at = timestamp
def _handle_working(self, power_w: float, timestamp: datetime):
"""WORKING State: Session running at high power."""
# Accumulate working time
if self.state_entered_at:
time_in_state = (timestamp - self.state_entered_at).total_seconds()
self.interval_working_s += time_in_state
self.total_working_s += time_in_state
if power_w < self.standby_threshold_w:
self._transition_to('stopping', timestamp)
elif power_w < self.working_threshold_w:
self._transition_to('standby', timestamp)
else:
# Stay in working, update state entry time for next increment
self.state_entered_at = timestamp
def _handle_stopping(self, power_w: float, timestamp: datetime):
"""STOPPING State: Debounce period before ending session."""
if power_w > self.standby_threshold_w:
if power_w > self.working_threshold_w:
logger.info(f"device={self.device_id} power_resumed_during_stopping back_to=working")
self._transition_to('working', timestamp)
else:
logger.info(f"device={self.device_id} power_resumed_during_stopping back_to=standby")
self._transition_to('standby', timestamp)
return
time_in_state = (timestamp - self.state_entered_at).total_seconds()
if time_in_state >= self.stop_debounce_s:
self._end_session('normal', timestamp)
self._transition_to('idle', timestamp)
def _transition_to(self, new_state: str, timestamp: datetime):
"""Transition to a new state."""
old_state = self.state
self.state = new_state
self.state_entered_at = timestamp
if self.current_session_id:
self.interval_state_changes += 1
logger.info(f"device={self.device_id} state_transition from={old_state} to={new_state}")
def _start_session(self, power_w: float, timestamp: datetime):
"""Start a new session."""
self.current_session_id = str(uuid.uuid4())
self.session_start_time = timestamp
self.last_heartbeat_time = timestamp
# Reset counters
self.interval_working_s = 0.0
self.interval_standby_s = 0.0
self.interval_power_samples = []
self.interval_state_changes = 0
self.total_working_s = 0.0
self.total_standby_s = 0.0
logger.info(f"device={self.device_id} session_started session_id={self.current_session_id[:8]} power={power_w}W")
if self.event_callback:
self.event_callback({
'event_type': 'session_started',
'device_id': self.device_id,
'session_id': self.current_session_id,
'machine_name': self.machine_name,
'timestamp': timestamp.isoformat(),
'payload': {
'start_power_w': power_w,
'start_state': 'standby'
}
})
def _emit_heartbeat(self, timestamp: datetime):
"""Emit aggregated heartbeat event."""
if not self.current_session_id:
return
# Calculate average power
avg_power = sum(self.interval_power_samples) / len(self.interval_power_samples) if self.interval_power_samples else 0
logger.info(f"device={self.device_id} session_heartbeat session_id={self.current_session_id[:8]} "
f"interval_working={self.interval_working_s:.0f}s interval_standby={self.interval_standby_s:.0f}s "
f"avg_power={avg_power:.1f}W state_changes={self.interval_state_changes}")
if self.event_callback:
self.event_callback({
'event_type': 'session_heartbeat',
'device_id': self.device_id,
'session_id': self.current_session_id,
'machine_name': self.machine_name,
'timestamp': timestamp.isoformat(),
'payload': {
'interval_working_s': round(self.interval_working_s, 1),
'interval_standby_s': round(self.interval_standby_s, 1),
'current_state': self.state,
'avg_power_w': round(avg_power, 1),
'state_change_count': self.interval_state_changes,
'total_working_s': round(self.total_working_s, 1),
'total_standby_s': round(self.total_standby_s, 1)
}
})
# Reset interval counters
self.interval_working_s = 0.0
self.interval_standby_s = 0.0
self.interval_power_samples = []
self.interval_state_changes = 0
self.last_heartbeat_time = timestamp
def _end_session(self, reason: str, timestamp: datetime):
"""End the current session."""
if not self.current_session_id:
return
# Emit final heartbeat if there's accumulated data
if self.interval_working_s > 0 or self.interval_standby_s > 0:
self._emit_heartbeat(timestamp)
total_duration = (timestamp - self.session_start_time).total_seconds() if self.session_start_time else 0
logger.info(f"device={self.device_id} session_ended session_id={self.current_session_id[:8]} "
f"reason={reason} duration={total_duration:.0f}s "
f"total_working={self.total_working_s:.0f}s total_standby={self.total_standby_s:.0f}s")
if self.event_callback:
self.event_callback({
'event_type': 'session_ended' if reason == 'normal' else 'session_timeout',
'device_id': self.device_id,
'session_id': self.current_session_id,
'machine_name': self.machine_name,
'timestamp': timestamp.isoformat(),
'payload': {
'end_reason': reason,
'total_duration_s': round(total_duration, 1),
'total_working_s': round(self.total_working_s, 1),
'total_standby_s': round(self.total_standby_s, 1)
}
})
self.current_session_id = None
def check_timeout(self, current_time: datetime):
"""Check if session timed out (no messages for too long)."""
if not self.current_session_id or not self.last_message_time:
return
time_since_last = (current_time - self.last_message_time).total_seconds()
if time_since_last > self.message_timeout_s:
logger.warning(f"device={self.device_id} session_timeout no_messages_for={time_since_last:.0f}s")
self._end_session('timeout', current_time)
self._transition_to('idle', current_time)

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"""Shelly PM Mini G3 Parser - extracts power data from MQTT messages."""
import json
import logging
from typing import Dict, Optional
from datetime import datetime
logger = logging.getLogger(__name__)
class ShellyParser:
"""Parser for Shelly PM Mini G3 MQTT Messages."""
def parse_message(self, topic: str, payload: dict) -> Optional[Dict]:
"""
Parse Shelly MQTT message.
Args:
topic: MQTT topic
payload: Message payload (already JSON parsed)
Returns:
Dict with parsed data or None
"""
try:
# Only parse status messages
if '/status/pm1:0' in topic:
return self._parse_status_message(topic, payload)
return None
except Exception as e:
logger.debug(f"parse_error", topic=topic, error=str(e))
return None
def _parse_status_message(self, topic: str, data: dict) -> Optional[Dict]:
"""
Parse Shelly PM status message.
Topic: shaperorigin/status/pm1:0
Payload format:
{
"id": 0,
"voltage": 230.0,
"current": 0.217,
"apower": 50.0,
"freq": 50.0,
"aenergy": {"total": 12345.6},
"temperature": {"tC": 35.2}
}
"""
try:
device_id = self._extract_device_id(topic)
result = {
'message_type': 'status',
'device_id': device_id,
'timestamp': datetime.utcnow().isoformat() + 'Z',
'voltage': data.get('voltage'),
'current': data.get('current'),
'apower': data.get('apower', 0), # Active Power in Watts
'frequency': data.get('freq'),
'total_energy': data.get('aenergy', {}).get('total'),
'temperature': data.get('temperature', {}).get('tC'),
}
logger.debug(f"parsed_status", device=device_id, apower=result['apower'])
return result
except Exception as e:
logger.error(f"status_parse_error", error=str(e))
return None
def _extract_device_id(self, topic: str) -> str:
"""Extract device ID from topic path."""
# Example: shaperorigin/status/pm1:0 -> shaperorigin
parts = topic.split('/')
if len(parts) > 0:
return parts[0]
return "unknown"

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"""IoT Bridge Tests"""

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# Integration tests for iot_bridge

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#!/usr/bin/env python3
"""
Integration Tests für IoT Bridge
Testet komplette Pipeline:
MQTT Simulator Bridge SessionDetector Event Callback
Usage:
cd iot_bridge
source venv/bin/activate
pytest tests/integration/test_bridge_integration.py -v -s
"""
import pytest
import subprocess
import time
import json
import signal
import os
from pathlib import Path
from datetime import datetime
import sys
@pytest.fixture(scope="session")
def workspace_dir():
"""iot_bridge root directory"""
return Path(__file__).parent.parent.parent
@pytest.fixture(scope="session")
def test_config_file(workspace_dir):
"""Erstellt temporäre test_config.yaml für Integration Tests"""
# Use local Mosquitto container (no auth needed)
# If running outside docker-compose, fallback to cloud broker
import socket
# Try localhost first (docker-compose.dev.yaml mosquitto)
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.settimeout(1)
result = sock.connect_ex(('localhost', 1883))
sock.close()
if result == 0:
# Local Mosquitto available
mqtt_broker = "localhost"
mqtt_port = 1883
mqtt_username = None
mqtt_password = None
use_tls = False
print("\n✅ Using local Mosquitto container (localhost:1883)")
else:
raise ConnectionError("Local broker not available")
except:
# Fallback to cloud broker with credentials from config.yaml
import yaml
config_path = workspace_dir / "config.yaml"
if not config_path.exists():
pytest.skip("config.yaml nicht gefunden und kein lokaler Mosquitto Container.")
with open(config_path) as f:
real_config = yaml.safe_load(f)
mqtt_config = real_config.get('mqtt', {})
mqtt_broker = mqtt_config.get('broker', 'mqtt.majufilo.eu')
mqtt_port = mqtt_config.get('port', 8883)
mqtt_username = mqtt_config.get('username')
mqtt_password = mqtt_config.get('password')
use_tls = mqtt_config.get('use_tls', True)
print(f"\n⚠️ Using cloud broker {mqtt_broker}:{mqtt_port}")
# Config mit MQTT Broker (lokal oder cloud)
username_line = f' username: "{mqtt_username}"' if mqtt_username else ' # username: ""'
password_line = f' password: "{mqtt_password}"' if mqtt_password else ' # password: ""'
config_content = f"""
mqtt:
broker: "{mqtt_broker}"
port: {mqtt_port}
{username_line}
{password_line}
use_tls: {str(use_tls).lower()}
client_id: "iot_bridge_pytest"
keepalive: 60
odoo:
url: "http://localhost:8069"
token: "dummy-token-for-tests"
use_mock: true
logging:
level: "INFO"
format: "json"
devices:
- device_id: "pytest-device-01"
machine_name: "PyTest Machine 1"
mqtt_topic: "testshelly-m1/status/pm1:0"
parser_type: "shelly_pm_mini_g3"
session_config:
strategy: "power_threshold"
standby_threshold_w: 20.0
working_threshold_w: 100.0
start_debounce_s: 3.0
stop_debounce_s: 15.0
message_timeout_s: 20.0
heartbeat_interval_s: 10.0
- device_id: "pytest-device-02"
machine_name: "PyTest Machine 2"
mqtt_topic: "testshelly-m2/status/pm1:0"
parser_type: "shelly_pm_mini_g3"
session_config:
strategy: "power_threshold"
standby_threshold_w: 20.0
working_threshold_w: 100.0
start_debounce_s: 3.0
stop_debounce_s: 15.0
message_timeout_s: 20.0
heartbeat_interval_s: 10.0
"""
config_path = workspace_dir / "test_config.yaml"
config_path.write_text(config_content)
yield config_path
# Cleanup
if config_path.exists():
config_path.unlink()
@pytest.fixture(scope="session")
def test_events_log(workspace_dir):
"""Log-Datei für emittierte Events"""
log_file = workspace_dir / "test_events.log"
# Löschen wenn vorhanden
if log_file.exists():
log_file.unlink()
yield log_file
# Cleanup optional (zum Debugging behalten)
# if log_file.exists():
# log_file.unlink()
@pytest.fixture(scope="module")
def bridge_process(workspace_dir, test_config_file):
"""Startet die IoT Bridge als Subprocess"""
env = os.environ.copy()
env['PYTHONUNBUFFERED'] = '1'
# Python aus venv
python_exe = workspace_dir / 'venv' / 'bin' / 'python'
if not python_exe.exists():
pytest.skip("Kein venv gefunden. Bitte 'python -m venv venv' ausführen.")
bridge_log = workspace_dir / 'bridge_integration_test.log'
with open(bridge_log, 'w') as log_file:
process = subprocess.Popen(
[str(python_exe), 'main.py', '--config', str(test_config_file)],
cwd=workspace_dir,
env=env,
stdout=log_file,
stderr=subprocess.STDOUT,
text=True
)
# Warten bis Bridge connected ist
print("\n⏳ Warte auf Bridge Start...")
time.sleep(5)
# Prüfen ob Prozess läuft
if process.poll() is not None:
with open(bridge_log, 'r') as f:
output = f.read()
pytest.fail(f"Bridge konnte nicht gestartet werden:\n{output}")
print("✅ Bridge gestartet")
yield process
# Bridge sauber beenden
print("\n🛑 Beende Bridge...")
process.send_signal(signal.SIGTERM)
try:
process.wait(timeout=5)
except subprocess.TimeoutExpired:
process.kill()
@pytest.fixture
def simulator_process(workspace_dir, test_config_file):
"""Startet Shelly Simulator als Subprocess"""
python_exe = workspace_dir / 'venv' / 'bin' / 'python'
simulator_path = workspace_dir / 'tests' / 'tools' / 'shelly_simulator.py'
if not simulator_path.exists():
pytest.skip("shelly_simulator.py nicht gefunden")
# Load MQTT config from test_config (same as bridge uses)
import yaml
with open(test_config_file) as f:
config = yaml.safe_load(f)
mqtt_config = config.get('mqtt', {})
broker = mqtt_config.get('broker', 'localhost')
port = mqtt_config.get('port', 1883)
username = mqtt_config.get('username')
password = mqtt_config.get('password')
use_tls = mqtt_config.get('use_tls', False)
def run_scenario(scenario: str, topic_prefix: str, duration: int = 30, power: float = None):
"""Startet Simulator mit Szenario"""
cmd = [
str(python_exe),
str(simulator_path),
'--broker', broker,
'--port', str(port),
'--topic-prefix', topic_prefix,
'--scenario', scenario,
'--duration', str(duration)
]
# Add credentials only if present
if username:
cmd.extend(['--username', username])
if password:
cmd.extend(['--password', password])
# Add --no-tls if TLS is disabled
if not use_tls:
cmd.append('--no-tls')
if power is not None:
cmd.extend(['--power', str(power)])
print(f"\n🔧 Starte Simulator: {scenario} (topic={topic_prefix})")
print(f" Command: {' '.join(cmd)}")
# Simulator im Hintergrund starten - STDOUT auf console für Debugging
process = subprocess.Popen(
cmd,
cwd=workspace_dir,
stdout=None, # Inherit stdout (zeigt auf console)
stderr=subprocess.STDOUT,
text=True
)
# Kurz warten damit Simulator sich connecten kann
time.sleep(2)
return process
yield run_scenario
def wait_for_log_line(log_file: Path, search_string: str, timeout: int = 15):
"""Wartet bis search_string im Log auftaucht"""
start_time = time.time()
while time.time() - start_time < timeout:
if log_file.exists():
with open(log_file, 'r') as f:
content = f.read()
if search_string in content:
return True
time.sleep(0.5)
return False
def count_event_type_in_log(log_file: Path, event_type: str):
"""Zählt wie oft event_type im Bridge-Log vorkommt"""
if not log_file.exists():
return 0
count = 0
with open(log_file, 'r') as f:
for line in f:
if event_type in line and '"event_type"' in line:
count += 1
return count
class TestBridgeIntegration:
"""Integration Tests mit Simulator"""
def test_bridge_is_running(self, bridge_process):
"""Bridge läuft erfolgreich"""
assert bridge_process.poll() is None, "Bridge Prozess ist abgestürzt"
def test_session_start_standby(self, bridge_process, simulator_process, workspace_dir):
"""Session Start → STANDBY via Simulator"""
log_file = workspace_dir / 'bridge_integration_test.log'
# Simulator: standby Szenario (40-60W)
sim = simulator_process('standby', 'testshelly-m1', duration=15)
# Warten auf session_started Event
print("⏳ Warte auf session_started Event...")
found = wait_for_log_line(log_file, 'session_started', timeout=20)
# Simulator beenden
sim.terminate()
sim.wait()
assert found, "session_started Event wurde nicht geloggt"
# Log ausgeben
with open(log_file, 'r') as f:
lines = f.readlines()
for line in lines[-20:]: # Letzte 20 Zeilen
if 'session_started' in line:
print(f"\n✅ Event gefunden: {line.strip()}")
def test_session_heartbeat(self, bridge_process, simulator_process, workspace_dir):
"""Session Heartbeat nach 10s"""
log_file = workspace_dir / 'bridge_integration_test.log'
# Simulator: standby für 20s (heartbeat_interval_s = 10s)
sim = simulator_process('standby', 'testshelly-m1', duration=20)
# Warten auf session_heartbeat Event
print("⏳ Warte auf session_heartbeat Event (10s)...")
found = wait_for_log_line(log_file, 'session_heartbeat', timeout=25)
sim.terminate()
sim.wait()
assert found, "session_heartbeat Event wurde nicht geloggt"
# Log ausgeben
with open(log_file, 'r') as f:
lines = f.readlines()
for line in lines[-20:]:
if 'session_heartbeat' in line:
print(f"\n✅ Heartbeat gefunden: {line.strip()}")
def test_full_session_cycle(self, bridge_process, simulator_process, workspace_dir):
"""Kompletter Session-Zyklus: Start → Working → Heartbeat → End"""
log_file = workspace_dir / 'bridge_integration_test.log'
# Simulator: full_session Szenario (dauert ~80s)
print("\n🔄 Starte Full Session Szenario...")
sim = simulator_process('full_session', 'testshelly-m1', duration=90)
# Warten auf Events
time.sleep(5)
assert wait_for_log_line(log_file, 'session_started', timeout=10), "session_started fehlt"
time.sleep(12) # Warten auf Heartbeat (10s interval + buffer)
assert wait_for_log_line(log_file, 'session_heartbeat', timeout=5), "session_heartbeat fehlt"
# Warten bis Simulator fertig ist (80s Szenario)
sim.wait(timeout=90)
time.sleep(3) # Buffer für session_ended
assert wait_for_log_line(log_file, 'session_ended', timeout=5), "session_ended fehlt"
print("✅ Full Session Cycle erfolgreich")
def test_standby_to_working_transition(self, bridge_process, simulator_process, workspace_dir):
"""STANDBY → WORKING Transition"""
log_file = workspace_dir / 'bridge_integration_test.log'
# Simulator: working Szenario (>100W)
sim = simulator_process('working', 'testshelly-m1', duration=15)
# Warten auf session_started
time.sleep(5)
found_start = wait_for_log_line(log_file, 'session_started', timeout=10)
sim.terminate()
sim.wait()
assert found_start, "session_started Event fehlt"
# Prüfen ob WORKING State erreicht wurde
with open(log_file, 'r') as f:
content = f.read()
# Suche nach State-Wechsel Logs
assert 'working' in content.lower() or 'standby' in content.lower(), "Keine State-Logs gefunden"
print("✅ State Transition Test erfolgreich")
def test_multi_device_parallel_sessions(self, bridge_process, simulator_process, workspace_dir):
"""Zwei Devices parallel"""
log_file = workspace_dir / 'bridge_integration_test.log'
# Log-Marker setzen vor Test
start_marker = f"=== TEST START {time.time()} ==="
# Zwei Simulatoren parallel starten
print(f"\n🔄 Starte 2 Devices parallel... {start_marker}")
sim1 = simulator_process('standby', 'testshelly-m1', duration=25)
time.sleep(2) # Mehr Zeit zwischen Starts
sim2 = simulator_process('standby', 'testshelly-m2', duration=25)
# Warten auf beide session_started Events
time.sleep(10) # Mehr Zeit für beide Sessions
# Prüfe ob beide Devices session_started haben
found_device1 = wait_for_log_line(log_file, 'session_started device=pytest-device-01', timeout=5)
found_device2 = wait_for_log_line(log_file, 'session_started device=pytest-device-02', timeout=5)
sim1.terminate()
sim2.terminate()
sim1.wait()
sim2.wait()
# Beide Sessions sollten gestartet sein
assert found_device1, "Device 1 Session nicht gestartet"
assert found_device2, "Device 2 Session nicht gestartet"
print("✅ 2 parallele Sessions erfolgreich")
def test_session_timeout(self, bridge_process, simulator_process, workspace_dir):
"""Session Timeout nach 20s ohne Messages"""
log_file = workspace_dir / 'bridge_integration_test.log'
# Simulator für 10s, dann stoppen
sim = simulator_process('standby', 'testshelly-m1', duration=10)
# Session starten
time.sleep(8)
assert wait_for_log_line(log_file, 'session_started', timeout=10)
sim.wait()
# Jetzt 25s warten (> 20s timeout)
print("\n⏱️ Warte 25s für Timeout Detection...")
time.sleep(25)
# Prüfe auf session_timeout Event
found_timeout = wait_for_log_line(log_file, 'session_timeout', timeout=5)
assert found_timeout, "session_timeout Event wurde nicht geloggt"
print("✅ Timeout Detection funktioniert")
if __name__ == '__main__':
pytest.main([__file__, '-v', '-s'])

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"""Test Tools"""

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#!/usr/bin/env python3
"""
Shelly PM Mini G3 Simulator for Testing
Sends MQTT messages to test topics with various power scenarios.
Usage:
python shelly_simulator.py --scenario standby
python shelly_simulator.py --scenario working
python shelly_simulator.py --scenario full_session
"""
import argparse
import json
import ssl
import time
from datetime import datetime
from paho.mqtt import client as mqtt_client
class ShellySimulator:
"""Simulates Shelly PM Mini G3 MQTT Messages."""
def __init__(self, broker_host: str, broker_port: int,
username: str, password: str,
topic_prefix: str = "testshelly",
use_tls: bool = True):
self.broker_host = broker_host
self.broker_port = broker_port
self.username = username
self.password = password
self.topic_prefix = topic_prefix
self.topic = f"{topic_prefix}/status/pm1:0"
self.use_tls = use_tls
self.client = None
def connect(self):
"""Connect to MQTT Broker."""
client_id = f"shelly-simulator-{int(time.time())}"
self.client = mqtt_client.Client(client_id=client_id, protocol=mqtt_client.MQTTv5)
self.client.username_pw_set(self.username, self.password)
if self.use_tls:
self.client.tls_set(cert_reqs=ssl.CERT_NONE)
self.client.tls_insecure_set(True)
print(f"Connecting to MQTT Broker {self.broker_host}:{self.broker_port}...")
self.client.connect(self.broker_host, self.broker_port, keepalive=60)
self.client.loop_start()
time.sleep(1)
print("✓ Connected")
def disconnect(self):
"""Disconnect from broker."""
if self.client:
self.client.loop_stop()
self.client.disconnect()
print("✓ Disconnected")
def send_power_message(self, power_w: float, interval_s: int = 1):
"""
Send Shelly PM Mini G3 status message.
Args:
power_w: Power in watts
interval_s: Sleep interval after sending (seconds)
"""
message = {
"id": 0,
"voltage": 230.0,
"current": round(power_w / 230.0, 3),
"apower": power_w,
"freq": 50.0,
"aenergy": {
"total": round(12345.6 + (power_w * interval_s / 3600), 1),
"by_minute": [0.0, 0.0, 0.0],
"minute_ts": int(time.time())
},
"temperature": {
"tC": 35.2,
"tF": 95.4
}
}
payload = json.dumps(message)
self.client.publish(self.topic, payload, qos=1)
timestamp = datetime.now().strftime("%H:%M:%S")
print(f"[{timestamp}] 📤 Sent: {power_w:.1f}W")
if interval_s > 0:
time.sleep(interval_s)
def scenario_standby(self, duration_s: int = 60):
"""Scenario: Machine in STANDBY (20-100W)."""
print("\n=== SCENARIO: STANDBY (20-100W) ===")
print(f"Duration: {duration_s}s\n")
for i in range(duration_s):
power = 40 + (i % 20) # 40-60W
self.send_power_message(power)
def scenario_working(self, duration_s: int = 60):
"""Scenario: Machine WORKING (>100W)."""
print("\n=== SCENARIO: WORKING (>100W) ===")
print(f"Duration: {duration_s}s\n")
for i in range(duration_s):
power = 150 + (i % 50) # 150-200W
self.send_power_message(power)
def scenario_full_session(self):
"""Scenario: Complete session with transitions."""
print("\n=== SCENARIO: FULL SESSION ===")
print("IDLE → STARTING → STANDBY → WORKING → STANDBY → STOPPING → IDLE\n")
# 1. IDLE (10s)
print("1. IDLE (10W, 10s)")
for _ in range(10):
self.send_power_message(10)
# 2. STARTING → STANDBY (30W, 5s)
print("2. STARTING → STANDBY (30W, 5s)")
for _ in range(5):
self.send_power_message(30)
# 3. STANDBY (50W, 15s)
print("3. STANDBY (50W, 15s)")
for _ in range(15):
self.send_power_message(50)
# 4. WORKING (150W, 20s)
print("4. WORKING (150W, 20s)")
for _ in range(20):
self.send_power_message(150)
# 5. Back to STANDBY (40W, 10s)
print("5. Back to STANDBY (40W, 10s)")
for _ in range(10):
self.send_power_message(40)
# 6. STOPPING → IDLE (5W, 20s)
print("6. STOPPING → IDLE (5W, 20s)")
for _ in range(20):
self.send_power_message(5)
print("\n✓ Session completed")
def main():
parser = argparse.ArgumentParser(description="Shelly PM Mini G3 Simulator")
parser.add_argument("--broker", default="mqtt.majufilo.eu", help="MQTT Broker host")
parser.add_argument("--port", type=int, default=8883, help="MQTT Broker port")
parser.add_argument("--username", default="mosquitto", help="MQTT username")
parser.add_argument("--password", default="jer7Pehr", help="MQTT password")
parser.add_argument("--topic-prefix", default="testshelly", help="MQTT topic prefix")
parser.add_argument("--scenario", choices=["standby", "working", "full_session"],
default="full_session", help="Test scenario")
parser.add_argument("--duration", type=int, default=60, help="Duration for standby/working scenarios")
parser.add_argument("--no-tls", action="store_true", help="Disable TLS")
args = parser.parse_args()
simulator = ShellySimulator(
broker_host=args.broker,
broker_port=args.port,
username=args.username,
password=args.password,
topic_prefix=args.topic_prefix,
use_tls=not args.no_tls
)
try:
simulator.connect()
if args.scenario == "standby":
simulator.scenario_standby(args.duration)
elif args.scenario == "working":
simulator.scenario_working(args.duration)
elif args.scenario == "full_session":
simulator.scenario_full_session()
except KeyboardInterrupt:
print("\n\nInterrupted by user")
finally:
simulator.disconnect()
if __name__ == "__main__":
main()

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"""Unit Tests"""

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#!/usr/bin/env python3
"""
Unit Tests for SessionDetector
Tests the session detection logic with aggregation.
Usage:
pytest test_session_detector.py -v
pytest test_session_detector.py::TestSessionStart -v
"""
import pytest
from datetime import datetime, timedelta
import sys
from pathlib import Path
# Add parent directory to path
sys.path.insert(0, str(Path(__file__).parent.parent.parent))
from session_detector import SessionDetector
@pytest.fixture
def events_received():
"""Track events emitted by detector."""
events = []
return events
@pytest.fixture
def detector(events_received):
"""SessionDetector with test configuration."""
def event_callback(event):
events_received.append(event)
return SessionDetector(
device_id="test-device-01",
machine_name="Test Machine",
standby_threshold_w=20.0,
working_threshold_w=100.0,
start_debounce_s=3.0,
stop_debounce_s=15.0,
message_timeout_s=20.0,
heartbeat_interval_s=30.0,
event_callback=event_callback
)
class TestSessionStart:
"""Tests for session start with debounce."""
def test_idle_to_starting(self, detector, events_received):
"""Power >= 20W → STARTING state."""
timestamp = datetime.utcnow()
detector.process_power_measurement(30.0, timestamp)
assert detector.state == 'starting'
assert len(events_received) == 0 # No event yet
def test_starting_to_standby(self, detector, events_received):
"""After 3s debounce with 20-100W → STANDBY."""
start_time = datetime.utcnow()
# T+0: 30W → STARTING
detector.process_power_measurement(30.0, start_time)
assert detector.state == 'starting'
# T+1: 50W → still STARTING
detector.process_power_measurement(50.0, start_time + timedelta(seconds=1))
assert detector.state == 'starting'
# T+3: 50W → STANDBY (debounce passed)
detector.process_power_measurement(50.0, start_time + timedelta(seconds=3))
assert detector.state == 'standby'
assert len(events_received) == 1
assert events_received[0]['event_type'] == 'session_started'
assert events_received[0]['payload']['start_power_w'] == 50.0
def test_starting_to_working(self, detector, events_received):
"""After 3s debounce with >=100W → WORKING."""
start_time = datetime.utcnow()
# T+0: 30W → STARTING
detector.process_power_measurement(30.0, start_time)
# T+1: 120W → still STARTING
detector.process_power_measurement(120.0, start_time + timedelta(seconds=1))
# T+3: 150W → WORKING (debounce passed)
detector.process_power_measurement(150.0, start_time + timedelta(seconds=3))
assert detector.state == 'standby' # Session starts in standby first
# Then immediately transitions to working if power high enough
def test_false_start(self, detector, events_received):
"""Power drops before debounce → back to IDLE."""
start_time = datetime.utcnow()
# T+0: 30W → STARTING
detector.process_power_measurement(30.0, start_time)
assert detector.state == 'starting'
# T+1: 10W → back to IDLE
detector.process_power_measurement(10.0, start_time + timedelta(seconds=1))
assert detector.state == 'idle'
assert len(events_received) == 0
class TestStateTransitions:
"""Tests for state transitions during session."""
def test_standby_to_working(self, detector, events_received):
"""STANDBY → WORKING when power >= 100W."""
start_time = datetime.utcnow()
# Start session in STANDBY
detector.process_power_measurement(30.0, start_time)
detector.process_power_measurement(50.0, start_time + timedelta(seconds=3))
assert detector.state == 'standby'
# Clear started event
events_received.clear()
# Power increases to 150W → WORKING
detector.process_power_measurement(150.0, start_time + timedelta(seconds=10))
assert detector.state == 'working'
assert len(events_received) == 0 # No event, just state change
def test_working_to_standby(self, detector, events_received):
"""WORKING → STANDBY when power < 100W."""
start_time = datetime.utcnow()
# Start session with high power → WORKING
detector.process_power_measurement(150.0, start_time)
detector.process_power_measurement(150.0, start_time + timedelta(seconds=3))
# Transition to working
detector.process_power_measurement(150.0, start_time + timedelta(seconds=4))
assert detector.state == 'working' or detector.state == 'standby'
events_received.clear()
# Power decreases to 60W → STANDBY
detector.process_power_measurement(60.0, start_time + timedelta(seconds=10))
assert detector.state in ['standby', 'working'] # Depending on transition
class TestHeartbeat:
"""Tests for heartbeat aggregation."""
def test_heartbeat_emission(self, detector, events_received):
"""Heartbeat emitted after heartbeat_interval_s."""
start_time = datetime.utcnow()
# Start session
detector.process_power_measurement(50.0, start_time)
detector.process_power_measurement(50.0, start_time + timedelta(seconds=3))
events_received.clear()
# Send measurements for 30 seconds (heartbeat interval)
for i in range(30):
detector.process_power_measurement(50.0, start_time + timedelta(seconds=4 + i))
# Should have emitted heartbeat
heartbeats = [e for e in events_received if e['event_type'] == 'session_heartbeat']
assert len(heartbeats) >= 1
if len(heartbeats) > 0:
hb = heartbeats[0]
assert 'interval_standby_s' in hb['payload']
assert 'interval_working_s' in hb['payload']
assert 'avg_power_w' in hb['payload']
class TestSessionEnd:
"""Tests for session end with debounce."""
def test_session_end_from_standby(self, detector, events_received):
"""STANDBY → STOPPING → IDLE after 15s < 20W."""
start_time = datetime.utcnow()
# Start session
detector.process_power_measurement(50.0, start_time)
detector.process_power_measurement(50.0, start_time + timedelta(seconds=3))
events_received.clear()
# Run for 10s in STANDBY
for i in range(10):
detector.process_power_measurement(50.0, start_time + timedelta(seconds=4 + i))
# Power drops < 20W → STOPPING
t_stopping = start_time + timedelta(seconds=14)
detector.process_power_measurement(10.0, t_stopping)
assert detector.state == 'stopping'
# Run for 15s in STOPPING
for i in range(15):
detector.process_power_measurement(10.0, t_stopping + timedelta(seconds=1 + i))
# Should have ended session
ended = [e for e in events_received if e['event_type'] == 'session_ended']
assert len(ended) >= 1
assert detector.state == 'idle'
class TestTimeout:
"""Tests for session timeout."""
def test_session_timeout(self, detector, events_received):
"""Session times out after message_timeout_s without messages."""
start_time = datetime.utcnow()
# Start session
detector.process_power_measurement(50.0, start_time)
detector.process_power_measurement(50.0, start_time + timedelta(seconds=3))
assert detector.current_session_id is not None
events_received.clear()
# Check timeout after 25 seconds (> 20s timeout)
detector.check_timeout(start_time + timedelta(seconds=28))
# Should have timed out
timeout_events = [e for e in events_received if e['event_type'] == 'session_timeout']
assert len(timeout_events) >= 1
assert detector.state == 'idle'
assert detector.current_session_id is None