Source code for juham_shelly.shellymotion_simulator

import json
import time

from typing import Any, Dict, cast
from typing_extensions import override
from masterpiece.mqtt import MqttMsg
from juham_core import Juham, MasterPieceThread, JuhamThread

from .shelly import Shelly


[docs] class ShellyMotionSimulatorThread(MasterPieceThread): """Thread simulating Shelly Plus 1 wifi relay with four temperature sensors.""" def __init__(self, topic: str = "", interval: float = 60) -> None: """Construct thread for simulating data from Shelly motion sensors. Args: topic (str, optional): MQTT topic to post the sensor readings. Defaults to None. interval (float, optional): Interval specifying how often the sensor is read. Defaults to 60 seconds. """ super().__init__(None) self.shelly_topic: str = topic self.interval: float = interval
[docs] @override def update_interval(self) -> float: return self.interval
[docs] @override def update(self) -> bool: super().update() m = { "tmp": {"value": 22.5}, # Room temperature value "sensor": { "vibration": True, # Vibration status "motion": False, # Motion status }, "unixtime": int(time.time()), } msg = json.dumps(m) self.publish(self.shelly_topic, msg, 1, True) return True
[docs] class ShellyMotionSimulator(JuhamThread, Shelly): """Simulator for Shelly Motion 2 - a wifi motion sensor. Spawns a thread to generate MQTT messages as if they origin from the actual Shelly motion sensor""" workerThreadId = ShellyMotionSimulatorThread.get_class_id() shelly_topic = "shellies/shellymotion2/info" update_interval = 60 def __init__( self, name: str = "shellymotionsensor", topic: str = "", interval: float = 60, ) -> None: """Create Shelly motion sensor simulator. Args: name (str, optional): Name of the object. Defaults to 'shellymotionsensor'. topic (str, optional): MQTT topic to publish motion sensor events. Defaults to None. interval (float, optional): interval between events, in seconds. Defaults to None. """ super().__init__(name) self.active_liter_lpm = -1 self.update_ts = None if topic is not None: self.topic = topic if interval is not None: self.interval = interval
[docs] @override def on_connect(self, client: object, userdata: Any, flags: int, rc: int) -> None: super().on_connect(client, userdata, flags, rc) if rc == 0: self.subscribe(self.shelly_topic)
[docs] @override def on_message(self, client: object, userdata: Any, msg: MqttMsg) -> None: if msg.topic == self.shelly_topic: em = json.loads(msg.payload.decode()) self.on_sensor(em) else: super().on_message(client, userdata, msg)
[docs] def on_sensor(self, em: dict[str, Any]) -> None: """Handle data coming from the Shelly motion sensors. Simply log the event to indicate the presense of simulated device. Args: em (dict): data from the sensor """ self.debug(f"Motion sensor sensor {em}")
[docs] @override def run(self) -> None: self.worker = cast( ShellyMotionSimulatorThread, Juham.instantiate(ShellyMotionSimulatorThread.get_class_id()), ) self.worker.shelly_topic = self.shelly_topic self.worker.interval = self.update_interval super().run()
[docs] @override def to_dict(self) -> Dict[str, Any]: data: Dict[str, Any] = super().to_dict() data["_shellymotionsimulator"] = {"shelly_topic": self.shelly_topic} return data
[docs] @override def from_dict(self, data: Dict[str, Any]) -> None: super().from_dict(data) if "_shellymotionsimulator" in data: for key, value in data["_shellymotionsimulator"].items(): setattr(self, key, value)