craftbeerpi4-pione/cbpi/extension/mqtt_sensor/__init__.py

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# -*- coding: utf-8 -*-
import asyncio
from cbpi.api.dataclasses import NotificationAction, NotificationType
from cbpi.api import parameters, Property, CBPiSensor
from cbpi.api import *
import logging
import json
import time
from datetime import datetime
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@parameters([Property.Text(label="Topic", configurable=True, description="MQTT Topic"),
Property.Text(label="PayloadDictionary", configurable=True, default_value="",
description="Where to find msg in payload, leave blank for raw payload"),
Property.Kettle(label="Kettle", description="Reduced logging if Kettle is inactive (only Kettle or Fermenter to be selected)"),
Property.Fermenter(label="Fermenter", description="Reduced logging in seconds if Fermenter is inactive (only Kettle or Fermenter to be selected)"),
Property.Number(label="ReducedLogging", configurable=True, description="Reduced logging frequency in seconds if selected Kettle or Fermenter is inactive (default is 60 sec)"),
Property.Number(label="Timeout", configurable=True, unit="sec",
description="Timeout in seconds to send notification (default:60 | deactivated: 0)")])
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class MQTTSensor(CBPiSensor):
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def __init__(self, cbpi, id, props):
super(MQTTSensor, self).__init__(cbpi, id, props)
self.Topic = self.props.get("Topic", None)
self.payload_text = self.props.get("PayloadDictionary", None)
if self.payload_text != None:
self.payload_text = self.payload_text.split('.')
self.mqtt_task = self.cbpi.satellite.subcribe(self.Topic, self.on_message)
self.value: float = 999
self.timeout=int(self.props.get("Timeout", 60))
self.starttime = time.time()
self.notificationsend = False
self.nextchecktime=self.starttime+self.timeout
self.lastdata=time.time()
self.lastlog=0
self.sensor=self.get_sensor(self.id)
self.reducedfrequency=int(self.props.get("ReducedLogging", 60))
self.kettleid=self.props.get("Kettle", None)
self.reducedlogging=True
self.fermenterid=self.props.get("Fermenter", None)
if self.kettleid is not None and self.fermenterid is not None:
self.reducedlogging=False
self.cbpi.notify("MQTTSensor", "Sensor '" + str(self.sensor.name) + "' cant't have Fermenter and Kettle defined for reduced logging.", NotificationType.WARNING, action=[NotificationAction("OK", self.Confirm)])
self.kettle = self.get_kettle(self.kettleid) if self.kettleid is not None else None
self.fermenter = self.get_fermenter(self.fermenterid) if self.fermenterid is not None else None
async def Confirm(self, **kwargs):
self.nextchecktime = time.time() + self.timeout
self.notificationsend = False
pass
async def message(self):
target_timestring= datetime.fromtimestamp(self.lastdata)
self.cbpi.notify("MQTTSensor Timeout", "Sensor '" + str(self.sensor.name) + "' did not respond. Last data received: "+target_timestring.strftime("%D %H:%M"), NotificationType.WARNING, action=[NotificationAction("OK", self.Confirm)])
pass
async def on_message(self, message):
val = json.loads(message)
try:
if self.payload_text is not None:
for key in self.payload_text:
val = val.get(key, None)
if isinstance(val, (int, float, str)):
self.value = float(val)
self.push_update(self.value)
if self.reducedlogging:
await self.logvalue()
else:
self.log_data(self.value)
self.lastlog = time.time()
if self.timeout !=0:
self.nextchecktime = time.time() + self.timeout
self.notificationsend = False
self.lastdata=time.time()
except Exception as e:
logging.error("MQTT Sensor Error {}".format(e))
async def logvalue(self):
now=time.time()
if self.kettle is not None:
try:
kettlestatus=self.kettle.instance.state
except:
kettlestatus=False
if kettlestatus:
self.log_data(self.value)
logging.info("Kettle Active")
self.lastlog = time.time()
else:
logging.info("Kettle Inactive")
if now >= self.lastlog + self.reducedfrequency:
self.log_data(self.value)
self.lastlog = time.time()
logging.info("Logged with reduced freqency")
pass
if self.fermenter is not None:
try:
fermenterstatus=self.fermenter.instance.state
except:
fermenterstatus=False
if fermenterstatus:
self.log_data(self.value)
logging.info("Fermenter Active")
self.lastlog = time.time()
else:
logging.info("Fermenter Inactive")
if now >= self.lastlog + self.reducedfrequency:
self.log_data(self.value)
self.lastlog = time.time()
logging.info("Logged with reduced freqency")
pass
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async def run(self):
while self.running:
if self.timeout !=0:
if time.time() > self.nextchecktime and self.notificationsend == False:
await self.message()
self.notificationsend=True
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await asyncio.sleep(1)
def get_state(self):
return dict(value=self.value)
async def on_stop(self):
if self.mqtt_task.done() is False:
self.mqtt_task.cancel()
try:
await self.mqtt_task
except asyncio.CancelledError:
pass
def setup(cbpi):
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'''
This method is called by the server during startup
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Here you need to register your plugins at the server
:param cbpi: the cbpi core
:return:
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'''
if str(cbpi.static_config.get("mqtt", False)).lower() == "true":
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cbpi.plugin.register("MQTTSensor", MQTTSensor)