commit 87c18128f904254ee77c39378a94abd4d545d0b1
Author: Siwat Sirichai <siwat@siwatinc.com>
Date:   Mon Feb 12 09:54:08 2024 -0800

    Add mqtt-hass-sync.py

diff --git a/mqtt-hass-sync.py b/mqtt-hass-sync.py
new file mode 100644
index 0000000..f666a2f
--- /dev/null
+++ b/mqtt-hass-sync.py
@@ -0,0 +1,37 @@
+import appdaemon.plugins.hass.hassapi as hass
+import appdaemon.plugins.mqtt.mqttapi as mqtt
+import appdaemon.adbase as base
+
+
+class hass_mqtt_state_sync(base.ADBase):
+
+    def initialize(self):
+        self.hass = self.get_plugin_api("HASS")
+        self.mqtt = self.get_plugin_api("MQTT")
+        self.ad = self.get_ad_api()
+
+        self.entity_id = self.args["entity_id"]
+        self.entity = self.hass.get_entity(self.entity_id)
+        self.mqtt_topic_state = self.args["mqtt_topic_state"]
+        self.mqtt_topic_set_state = self.args["mqtt_topic_set_state"]
+        self.mqtt_topic_request = self.args["mqtt_topic_request"]
+        
+        self.mqtt.mqtt_subscribe(self.mqtt_topic_set_state)
+        self.mqtt.mqtt_subscribe(self.mqtt_topic_request)
+        self.mqtt.listen_event(self.handle_set_state_payload, "MQTT_MESSAGE", topic=self.mqtt_topic_set_state)
+        self.mqtt.listen_event(self.handle_request_payload, "MQTT_MESSAGE", topic=self.mqtt_topic_request)
+        self.entity.listen_state(self.handle_hass_state_change)
+
+    def publish_state_to_mqtt(self):
+        state = self.hass.get_state(self.entity_id)
+        self.mqtt.mqtt_publish(self.mqtt_topic_state, str(state))
+
+    def handle_set_state_payload(self, event_name, data, cb_args):
+        self.entity.set_state(state = data["payload"])
+
+    def handle_request_payload(self, event_name, data, cb_args):
+        self.publish_state_to_mqtt()
+
+    def handle_hass_state_change(self, entity, attribute, old, new, cb_args):
+        self.ad.log("State change detected: {} -> {}".format(old, new))
+        self.publish_state_to_mqtt()
\ No newline at end of file