Add basic cron support

config.yaml.example

@@ -7,4 +7,5 @@ workers:
     args:
       devices:
         bedroom: 00:11:22:33:44:55
-    topic_prefix: thermostats
+    topic_prefix: thermostats
+    update_interval: 60

gateway.py

@@ -1,9 +1,27 @@
+from queue import Queue
+
+from apscheduler.schedulers.background import BackgroundScheduler
+
 from config import settings
 from mqtt import MqttClient
 from workers_manager import WorkersManager
 
+queue = Queue()
+scheduler = BackgroundScheduler()
 mqtt = MqttClient(settings['mqtt'])
-
 manager = WorkersManager(settings['workers'])
-for worker_name in manager.workers.keys():
-  mqtt.publish(manager.update(worker_name))
+
+for worker_name, interval in manager.interval_enabled_workers.items():
+  queue.put([worker_name])
+  scheduler.add_job(lambda x: queue.put([x]), 'interval', seconds=interval, args=[worker_name])
+
+scheduler.start()
+
+while True:
+  for worker_name in queue.get(block=True):
+    try:
+      mqtt.publish(manager.update(worker_name))
+    except (KeyboardInterrupt, SystemExit):
+      raise
+    except:
+      print('Some error')

requirements.txt

@@ -1,2 +1,4 @@
 paho-mqtt
 pyyaml
+interruptingcow
+apscheduler

workers/miscale.py

@@ -1,8 +1,9 @@
 import time
+from interruptingcow import timeout
 
 from mqtt import MqttMessage
 
-REQUIREMENTS = ['bluepy', 'interruptingcow']
+REQUIREMENTS = ['bluepy']
 
 # Bluepy might need special settings
 # sudo setcap 'cap_net_raw,cap_net_admin+eip' /usr/local/lib/python3.6/dist-packages/bluepy/bluepy-helper
@@ -12,11 +13,10 @@ class MiscaleWorker():
     self._mac = mac
 
   def status_update(self):
-    return [MqttMessage(topic='weight/kg', payload= self._get_weight())]
+    return [MqttMessage(topic='weight/kg', payload=self._get_weight())]
 
   def _get_weight(self):
     from bluepy import btle
-    from interruptingcow import timeout
 
     scan_processor = ScanProcessor(self._mac)
     scanner = btle.Scanner().withDelegate(scan_processor)

workers/thermostat.py

@@ -5,7 +5,7 @@ REQUIREMENTS = ['python-eq3bt']
 monitoredAttrs = ["low_battery", "valve_state", "target_temperature"]
 
 class ThermostatWorker:
-  def __init__(self, devices=None):
+  def __init__(self, devices):
     self._devices = devices
 
   def status_update(self):

workers_manager.py

@@ -1,15 +1,19 @@
 import importlib
 import pip
+from interruptingcow import timeout
 
 class WorkersManager:
   def __init__(self, config):
     self._config = config
+    self._interval_enabled_workers = {}
     self._workers = self._register_klasses()
 
   def update(self, worker_name):
-    messages = self.workers[worker_name].status_update()
-    for message in messages:
-      message.topic = '/'.join([self._config[worker_name]['topic_prefix'], message.topic])
+    messages = []
+    with timeout(30):
+      messages = self.workers[worker_name].status_update()
+      for message in messages:
+        message.topic = '/'.join([self._config[worker_name]['topic_prefix'], message.topic])
 
     return messages
 
@@ -17,14 +21,23 @@ class WorkersManager:
   def workers(self):
     return self._workers
 
+  @property
+  def interval_enabled_workers(self):
+    return self._interval_enabled_workers
+
   def _register_klasses(self):
     arr = {}
 
     for worker_klass in self._config.keys():
       moduleObj = importlib.import_module("workers.%s" % worker_klass)
       klass = getattr(moduleObj, "%sWorker" % worker_klass.title())
+
       if moduleObj.REQUIREMENTS is not None:
         self._pip_install_helper(moduleObj.REQUIREMENTS)
+
+      if self._config[worker_klass]['update_interval'] is not None:
+        self._interval_enabled_workers[worker_klass] = self._config[worker_klass]['update_interval']
+
       arr[worker_klass] = klass(**self._args_for(worker_klass))
 
     return arr