implement dedup for mqtt messages

apps/nspanel-lovelace-ui/luibackend/mqtt.py

@@ -59,3 +59,18 @@ class LuiMqttListener(object):
             if msg[1] == "pageOpenDetail":
                 self._controller.detail_open(msg[2], msg[3])
 
+class LuiMqttSender(object):
+    def __init__(self, api, mqttapi, topic_send):
+        self._ha_api = api
+        self._mqtt_api = mqttapi
+        self._topic_send = topic_send
+        self._prev_msg = ""
+
+    def send_mqtt_msg(self, msg, topic=None):
+        if self._prev_msg == msg:
+            return
+        self._prev_msg = msg
+        if topic is None:
+            topic = self._topic_send
+        self._ha_api.log(f"Sending MQTT Message: {msg}")
+        self._mqtt_api.mqtt_publish(topic, msg)

apps/nspanel-lovelace-ui/nspanel-lovelace-ui.py

@@ -2,7 +2,7 @@ import hassapi as hass
 
 from luibackend.config import LuiBackendConfig
 from luibackend.controller import LuiController
-from luibackend.mqttListener import LuiMqttListener
+from luibackend.mqtt import LuiMqttListener, LuiMqttSender
 from luibackend.updater import Updater
 
 class NsPanelLovelaceUIManager(hass.Hass):
@@ -13,16 +13,12 @@ class NsPanelLovelaceUIManager(hass.Hass):
         cfg = self._cfg = LuiBackendConfig(self, self.args["config"])
         
         topic_send = cfg.get("panelSendTopic")
-        def send_mqtt_msg(msg, topic=None):
+        mqttsend = LuiMqttSender(self, mqtt_api, topic_send)
-            if topic is None:
-                topic = topic_send
-            self.log(f"Sending MQTT Message: {msg}")
-            mqtt_api.mqtt_publish(topic, msg)
 
         # Request Tasmota Driver Version
         mqtt_api.mqtt_publish(topic_send.replace("CustomSend", "GetDriverVersion"), "x")
 
-        controller = LuiController(self, cfg, send_mqtt_msg)
+        controller = LuiController(self, cfg, mqttsend.send_mqtt_msg)
         
         desired_display_firmware_version = 41
         version     = "v3.3.1"
@@ -43,7 +39,7 @@ class NsPanelLovelaceUIManager(hass.Hass):
         
         mode = cfg.get("updateMode")
         topic_send = cfg.get("panelSendTopic")
-        updater = Updater(self.log, send_mqtt_msg, topic_send, mode, desired_display_firmware_version, model, desired_display_firmware_url, desired_tasmota_driver_version, desired_tasmota_driver_url)
+        updater = Updater(self.log, mqttsend.send_mqtt_msg, topic_send, mode, desired_display_firmware_version, model, desired_display_firmware_url, desired_tasmota_driver_version, desired_tasmota_driver_url)
 
         topic_recv = cfg.get("panelRecvTopic")
         LuiMqttListener(mqtt_api, topic_recv, controller, updater)