update heater control

configs/pepe/home-assistant/heater-control.nix

@@ -10,7 +10,8 @@
     script =
       let myPython = pkgs.python3.withPackages (ps: with ps; [ paho-mqtt ]);
       in ''
-        ${myPython}/bin/python ${<mqtt/heater.py>}
+        cd ${<mqtt>}
+        ${myPython}/bin/python heater.py
       '';
   };
 }

mqtt/.gitignore

@@ -1 +1,2 @@
 venv
+**/__pycache__

mqtt/heater.py

@@ -1,11 +1,21 @@
 import time
+
 import paho.mqtt.client as mqtt
 import json
 import threading
 
 # initial scene
+from heater.modules.heater import Heater
+from heater.modules.watcher import Watcher
+
 scene = "default"
 
+watcher = Watcher({
+    "office1": Heater(topic="zigbee2mqtt/heater1", set_topic="zigbee2mqtt/heater1/set"),
+    "office2": Heater(topic="zigbee2mqtt/heater2", set_topic="zigbee2mqtt/heater2/set"),
+    "bedroom": Heater(topic="zigbee2mqtt/heater3", set_topic="zigbee2mqtt/heater3/set"),
+})
+
 
 # The callback for when the client receives a CONNACK response from the server.
 def on_connect(client, _userdata, _flags, rc):
@@ -16,16 +26,23 @@ def on_connect(client, _userdata, _flags, rc):
     # Subscribing in on_connect() means that if we lose the connection and
     # reconnect then subscriptions will be renewed.
     client.subscribe("control/lights/set")
+    for topic in watcher.get_topics():
+        client.subscribe(topic)
+    watcher.pull_values(client)
 
 
 # The callback for when a PUBLISH message is received from the server.
 def on_message(client, _userdata, msg):
     global scene
     (topic, payload) = parse_message(msg)
+    if topic == "control/lights/set":
         print("set scene %s -> %s" % (scene, payload['scene']))
         scene = payload['scene']
-    publish_heater_depending_on_scene(client)
-    # print(topic + " " + payload['scene'])
+        update_scene(client)
+    else:
+        print("got %s" % topic)
+        watcher.update_actual_heating_point_for_topic(topic, payload)
+        #watcher.publish(client)
 
 
 def parse_message(msg):
@@ -34,43 +51,39 @@ def parse_message(msg):
     return msg.topic, payload
 
 
-mqttClient = mqtt.Client()
-mqttClient.on_connect = on_connect
-mqttClient.on_message = on_message
-mqttClient.username_pw_set("homeassistant", password="password")
-
-mqttClient.connect("pepe.private", 1883, 60)
-
-
-def publish_heater(client, temperature=10):
-    payload = {
-        "system_mode": "auto",
-        "current_heating_setpoint": str(temperature),
-        "eurotronic_host_flags": {"window_open": True}
-    }
-    client.publish("zigbee2mqtt/heater1/set", json.dumps(payload))
-    client.publish("zigbee2mqtt/heater2/set", json.dumps(payload))
-    client.publish("zigbee2mqtt/heater3/set", json.dumps(payload))
-
-
-def publish_heater_depending_on_scene(client):
+def update_scene(client):
     if scene == "night":
-        publish_heater(client, 12)
+        watcher.update("office1", 10)
+        watcher.update("office2", 10)
+        watcher.update("bedroom", 13)
     elif scene == "default":
-        publish_heater(client, 26)
+        watcher.update("office1", 23)
+        watcher.update("office2", 23)
+        watcher.update("bedroom", 18)
     elif scene == "outside":
-        publish_heater(client, 10)
+        watcher.update("office1", 10)
+        watcher.update("office2", 10)
+        watcher.update("bedroom", 13)
     else:
-        publish_heater(client, 10)
+        watcher.update("office1", 10)
+        watcher.update("office2", 10)
+        watcher.update("bedroom", 13)
+
+    watcher.publish(client)
 
 
 def loop_thread(client):
     while True:
-        publish_heater_depending_on_scene(client)
-        time.sleep(300)
+        watcher.publish(client)
+        time.sleep(120)
 
 
 if __name__ == "__main__":
+    mqttClient = mqtt.Client()
+    mqttClient.on_connect = on_connect
+    mqttClient.on_message = on_message
+    mqttClient.username_pw_set("homeassistant", password="password")
+    mqttClient.connect("pepe.private", 1883, 60)
     # Blocking call that processes network traffic, dispatches callbacks and
     # handles reconnecting.
     # Other loop*() functions are available that give a threaded interface and a

mqtt/heater/modules/heater.py

@@ -0,0 +1,39 @@
+import json
+
+
+class Heater:
+    def __init__(self, topic, set_topic):
+        self.not_initialized_yet = True
+        self.wanted_temperature = 15
+        self.actual_temperature = 15
+        self.set_topic = set_topic
+        self.topic = topic
+
+    def payload(self):
+        payload = {
+            "system_mode": "auto",
+            "current_heating_setpoint": str(self.wanted_temperature),
+            "eurotronic_host_flags": {"window_open": True}
+        }
+        return json.dumps(payload)
+
+    def needs_publish(self):
+        if self.not_initialized_yet:
+            return True
+        else:
+            return self.wanted_temperature != self.actual_temperature
+
+    def update_actual_heating_point(self, payload):
+        heating_setpoint = int(payload["current_heating_setpoint"])
+        if self.not_initialized_yet:
+            self.not_initialized_yet = False
+            self.wanted_temperature = heating_setpoint
+            print("%s: update wanted temperature %d" % (self.topic, self.actual_temperature))
+        self.actual_temperature = heating_setpoint
+        print("%s: update actual temperature %d" % (self.topic, self.actual_temperature))
+
+    def topic_and_payload_for_query(self):
+        payload = {
+            "current_heating_setpoint": ""
+        }
+        return ("%s/get" % self.topic), json.dumps(payload)

mqtt/heater/modules/watcher.py

@@ -0,0 +1,34 @@
+import time
+from typing import List, Dict
+
+from heater.modules.heater import Heater
+
+
+class Watcher:
+
+    def __init__(self, heater: Dict[str, Heater]):
+        self.heater = heater
+
+    def publish(self, client):
+        for heater in self.heater.values():
+            if heater.needs_publish():
+                client.publish(heater.set_topic, heater.payload())
+                time.sleep(2)
+
+    def update(self, name, temperature):
+        heater: Heater = self.heater.get(name)
+        heater.wanted_temperature = temperature
+
+    def get_topics(self):
+        return [heater.topic for heater in self.heater.values()]
+
+    def update_actual_heating_point_for_topic(self, topic, payload):
+        for heater in self.heater.values():
+            if heater.topic == topic:
+                heater.update_actual_heating_point(payload)
+                return
+
+    def pull_values(self, client):
+        for heater in self.heater.values():
+            topic, payload = heater.topic_and_payload_for_query()
+            client.publish(topic, payload)