WIP: config via mqtt

power_mqtt1.py

@@ -1,5 +1,7 @@
 #!/usr/bin/env python3
 
+import hashlib
+import json
 import threading
 import time
 from dataclasses import dataclass
@@ -65,6 +67,25 @@ class Relay:
             self.on_button_event(self, 0)
         self.update_state(new_state)
 
+    def get_ha_components(self, prefix):
+        yield {
+            "name": self.name.replace("/", " ").title(),
+            "unique_id": hashlib.md5(f"{prefix}/{self.name}".encode()).hexdigest(),
+            "platform": "light",
+            "state_topic": f"{prefix}/{self.name}/status",
+            "command_topic": f"{prefix}/{self.name}/action",
+            "payload_on": "on",
+            "payload_off": "off",
+        }
+        yield {
+            "name": self.name.replace("/", " ").title() + " Button",
+            "unique_id": hashlib.md5(f"{prefix}/{self.name}#button".encode()).hexdigest(),
+            "platform": "binary_sensor",
+            "state_topic": f"{prefix}/{self.name}/input",
+            "payload_on": "1",
+            "payload_off": "0",
+        }
+
 
 @dataclass
 class ButtonInput(Relay):
@@ -100,6 +121,15 @@ class DimmerRelay(ButtonInput):
         else:
             pass  # TODO
 
+    def get_ha_components(self, prefix):
+        dev, btn = super().get_ha_components(prefix)
+        dev.update({
+            "brightness_state_topic": f"{prefix}/{self.name}/brightness",
+            "brightness_command_topic": f"{prefix}/{self.name}/action",
+        })
+        yield dev
+        yield btn
+
 
 @dataclass
 class ZentralAus(ButtonInput):
@@ -119,6 +149,10 @@ class ZentralAus(ButtonInput):
     def button_pressed(self, ms: int):
         self.set_state(self.STATE_MAX)
 
+    def get_ha_components(self, prefix):
+        return
+        yield
+
 
 class PowerCTL:
     PREFIX = "foobar/oben"
@@ -127,12 +161,12 @@ class PowerCTL:
         self.bus = BusWLock(smbus.SMBus(1))
         self.relays: dict[str, Relay] = {}  # topic: relay
 
-        self.mqtc = mqtt.Client()
+        self.mqttc = mqtt.Client()
-        self.mqtc.connect("mqtt.chaospott.de", 1883, 60)
+        self.mqttc.connect("mqtt.chaospott.de", 1883, 60)
 
-        self.mqtc.on_message = self.on_message
+        self.mqttc.on_message = self.on_message
-        self.mqtc.on_connect = self.on_connect
+        self.mqttc.on_connect = self.on_connect
-        self.mqtc.on_subscribe = self.on_subscribe
+        self.mqttc.on_subscribe = self.on_subscribe
 
     def add_relays(self, *relays: Relay):
         for relay in relays:
@@ -142,23 +176,42 @@ class PowerCTL:
             topic = f"{self.PREFIX}/{relay.name}/action"
             self.relays[topic] = relay
             print("subscribe", topic)
-            self.mqtc.subscribe(topic, 0)
+            self.mqttc.subscribe(topic, 0)
 
     def mqtt_send_state(self, relay: Relay):
         if relay.state is not None:
-            self.mqtc.publish(f"{self.PREFIX}/{relay.name}/status", {True: "on", False: "off"}[relay.state > relay.STATE_MIN], qos=0, retain=False)
+            self.mqttc.publish(f"{self.PREFIX}/{relay.name}/status", {True: "on", False: "off"}[relay.state > relay.STATE_MIN], qos=0, retain=False)
             if relay.has_brightness:
-                self.mqtc.publish(f"{self.PREFIX}/{relay.name}/brightness", relay.state, qos=0, retain=False)
+                self.mqttc.publish(f"{self.PREFIX}/{relay.name}/brightness", relay.state, qos=0, retain=False)
 
     def mqtt_send_event(self, relay: ButtonInput, ev):
-        self.mqtc.publish(f"{self.PREFIX}/{relay.name}/input", ev, qos=0, retain=False)
+        self.mqttc.publish(f"{self.PREFIX}/{relay.name}/input", ev, qos=0, retain=False)
+
+    def mqtt_register_ha(self):
+        self.mqttc.publish(f"homeassistant/device/powerctl/config", json.dumps(self.get_ha_device_config()), retain=True)
 
     def on_connect(self, _mosq, _obj, connect_flags, _rc):
         print("Connected", connect_flags)
         if not connect_flags.get("session present", 0):
             print("Re-Subscribe")
             for topic in self.relays:
-                self.mqtc.subscribe(topic, 0)
+                self.mqttc.subscribe(topic, 0)
+
+    def get_ha_device_config(self):
+        return {
+            "dev": {
+                "ids": "powerctl",
+                "name": "PowerCTL",
+                "m": "foobar",
+            },
+            "origin": {
+                "name": "PowerCTL",
+            },
+            "cmps": {
+                r.name: cmp for r in self.relays.values()
+                for cmp in r.get_ha_components(self.PREFIX)
+            },
+        }
 
     @staticmethod
     def on_subscribe(_mosq, _obj, _mid, _granted_qos):
@@ -219,13 +272,17 @@ def main():
         *relays,
         ZentralAus("zentralaus", 0x3a, 0, 0x21, 7, relays=relays),
     )
+    # powerctl.mqtt_register_ha()
 
     threading.Thread(target=powerctl.i2c_status_thread_new, daemon=True).start()
-    powerctl.mqtc.loop_start()
+    try:
+        powerctl.mqttc.loop_start()
         time.sleep(10)
         while True:
             powerctl.send_state()
             time.sleep(60)
+    except KeyboardInterrupt:
+        powerctl.mqttc.loop_stop()
 
 
 if __name__ == '__main__':

test.py

@@ -1,4 +1,3 @@
-import random
 import time
 from unittest.mock import patch
 
@@ -25,8 +24,9 @@ class MqttClient(mqtt.Client):
         return super().connect("127.0.0.1", *args, **kwargs)
         # return super().connect(host, *args, **kwargs)
 
-    def publish(self, topic, payload=None, qos=0, retain=False, properties=None, ):
+    def publish(self, topic, payload=None, qos=0, retain=False, properties=None):
-        pass
+        print(f"publish topic={topic}, data={payload}")
+        super().publish(topic, payload, qos, retain, properties)
 
 
 with patch('smbus.SMBus', new=SMBus) as SMBus_mock: