Add zwave application version (#26205)

* Set application version in zwave

* update tests for more coverage

homeassistant/components/zwave/node_entity.py

@@ -17,6 +17,7 @@ from .const import (
     EVENT_NODE_EVENT,
     EVENT_SCENE_ACTIVATED,
     COMMAND_CLASS_CENTRAL_SCENE,
+    COMMAND_CLASS_VERSION,
     DOMAIN,
 )
 from .util import node_name, is_node_parsed, node_device_id_and_name
@@ -30,6 +31,7 @@ ATTR_FAILED = "is_failed"
 ATTR_PRODUCT_NAME = "product_name"
 ATTR_MANUFACTURER_NAME = "manufacturer_name"
 ATTR_NODE_NAME = "node_name"
+ATTR_APPLICATION_VERSION = "application_version"
 
 STAGE_COMPLETE = "Complete"
 
@@ -130,10 +132,14 @@ class ZWaveNodeEntity(ZWaveBaseEntity):
         self._product_name = node.product_name
         self._manufacturer_name = node.manufacturer_name
         self._unique_id = self._compute_unique_id()
+        self._application_version = None
         self._attributes = {}
         self.wakeup_interval = None
         self.location = None
         self.battery_level = None
+        dispatcher.connect(
+            self.network_node_value_added, ZWaveNetwork.SIGNAL_VALUE_ADDED
+        )
         dispatcher.connect(self.network_node_changed, ZWaveNetwork.SIGNAL_VALUE_CHANGED)
         dispatcher.connect(self.network_node_changed, ZWaveNetwork.SIGNAL_NODE)
         dispatcher.connect(self.network_node_changed, ZWaveNetwork.SIGNAL_NOTIFICATION)
@@ -161,6 +167,24 @@ class ZWaveNodeEntity(ZWaveBaseEntity):
             info["via_device"] = (DOMAIN, 1)
         return info
 
+    def maybe_update_application_version(self, value):
+        """Update application version if value is a Command Class Version, Application Value."""
+        if (
+            value
+            and value.command_class == COMMAND_CLASS_VERSION
+            and value.label == "Application Version"
+        ):
+            self._application_version = value.data
+
+    def network_node_value_added(self, node=None, value=None, args=None):
+        """Handle a added value to a none on the network."""
+        if node and node.node_id != self.node_id:
+            return
+        if args is not None and "nodeId" in args and args["nodeId"] != self.node_id:
+            return
+
+        self.maybe_update_application_version(value)
+
     def network_node_changed(self, node=None, value=None, args=None):
         """Handle a changed node on the network."""
         if node and node.node_id != self.node_id:
@@ -172,6 +196,8 @@ class ZWaveNodeEntity(ZWaveBaseEntity):
         if value is not None and value.command_class == COMMAND_CLASS_CENTRAL_SCENE:
             self.central_scene_activated(value.index, value.data)
 
+        self.maybe_update_application_version(value)
+
         self.node_changed()
 
     def get_node_statistics(self):
@@ -343,6 +369,8 @@ class ZWaveNodeEntity(ZWaveBaseEntity):
             attrs[ATTR_BATTERY_LEVEL] = self.battery_level
         if self.wakeup_interval is not None:
             attrs[ATTR_WAKEUP] = self.wakeup_interval
+        if self._application_version is not None:
+            attrs[ATTR_APPLICATION_VERSION] = self._application_version
 
         return attrs