Avoid redundant calls to async_ha_write_state in mqtt text (#100816)

Avoid redundant calls to async_ha_write_state

homeassistant/components/mqtt/text.py

@@ -35,7 +35,12 @@ from .const import (
     CONF_STATE_TOPIC,
 )
 from .debug_info import log_messages
-from .mixins import MQTT_ENTITY_COMMON_SCHEMA, MqttEntity, async_setup_entry_helper
+from .mixins import (
+    MQTT_ENTITY_COMMON_SCHEMA,
+    MqttEntity,
+    async_setup_entry_helper,
+    write_state_on_attr_change,
+)
 from .models import (
     MessageCallbackType,
     MqttCommandTemplate,
@@ -44,7 +49,6 @@ from .models import (
     ReceiveMessage,
     ReceivePayloadType,
 )
-from .util import get_mqtt_data
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -188,11 +192,11 @@ class MqttTextEntity(MqttEntity, TextEntity):
 
         @callback
         @log_messages(self.hass, self.entity_id)
+        @write_state_on_attr_change(self, {"_attr_native_value"})
         def handle_state_message_received(msg: ReceiveMessage) -> None:
             """Handle receiving state message via MQTT."""
             payload = str(self._value_template(msg.payload))
             self._attr_native_value = payload
-            get_mqtt_data(self.hass).state_write_requests.write_state_request(self)
 
         add_subscription(topics, CONF_STATE_TOPIC, handle_state_message_received)
 

tests/components/mqtt/test_text.py

@@ -16,6 +16,7 @@ from homeassistant.const import (
 from homeassistant.core import HomeAssistant
 
 from .test_common import (
+    help_custom_config,
     help_test_availability_when_connection_lost,
     help_test_availability_without_topic,
     help_test_custom_availability_payload,
@@ -38,6 +39,7 @@ from .test_common import (
     help_test_setting_attribute_via_mqtt_json_message,
     help_test_setting_attribute_with_template,
     help_test_setting_blocked_attribute_via_mqtt_json_message,
+    help_test_skipped_async_ha_write_state,
     help_test_unique_id,
     help_test_unload_config_entry_with_platform,
     help_test_update_with_json_attrs_bad_json,
@@ -762,3 +764,39 @@ async def test_unload_entry(
     await help_test_unload_config_entry_with_platform(
         hass, mqtt_mock_entry, domain, config
     )
+
+
+@pytest.mark.parametrize(
+    "hass_config",
+    [
+        help_custom_config(
+            text.DOMAIN,
+            DEFAULT_CONFIG,
+            (
+                {
+                    "state_topic": "test-topic",
+                    "availability_topic": "availability-topic",
+                    "json_attributes_topic": "json-attributes-topic",
+                },
+            ),
+        )
+    ],
+)
+@pytest.mark.parametrize(
+    ("topic", "payload1", "payload2"),
+    [
+        ("test-topic", "My original text", "Changed text"),
+        ("availability-topic", "online", "offline"),
+        ("json-attributes-topic", '{"attr1": "val1"}', '{"attr1": "val2"}'),
+    ],
+)
+async def test_skipped_async_ha_write_state(
+    hass: HomeAssistant,
+    mqtt_mock_entry: MqttMockHAClientGenerator,
+    topic: str,
+    payload1: str,
+    payload2: str,
+) -> None:
+    """Test a write state command is only called when there is change."""
+    await mqtt_mock_entry()
+    await help_test_skipped_async_ha_write_state(hass, topic, payload1, payload2)