docs: improves stale duration docs

README.md

@@ -406,7 +406,9 @@ The internal values can be set by the component only and the external values can
 
 ### sensor_stale_duration
 
-  _(optional) (timedelta)_  Set a delay for the target sensor to be considered valid. If the sensor is not available for the specified time the thermostat will be turned off.
+  _(optional) (timedelta)_  Set a delay for the target sensor to be considered not stalled. If the sensor is not available for the specified time or doesn't get updated the thermostat will be turned off.
+
+  _requires: `target_sensor` and/or `huidity_sensor`_
 
 ### floor_sensor
 

custom_components/dual_smart_thermostat/climate.py

@@ -933,8 +933,8 @@ async def _async_sensor_not_responding(self, now: datetime | None = None) -> Non
             "Sensor has not been updated for %s",
             now - state.last_updated if now and state else "---",
         )
-        _LOGGER.warning("Sensor is stalled, call the emergency stop")
         if self._is_device_active:
+            _LOGGER.warning("Sensor is stalled, call the emergency stop")
             await self.hvac_device.async_turn_off()
             self._hvac_action_reason = HVACActionReason.TEMPERATURE_SENSOR_STALLED
             self.async_write_ha_state()

custom_components/dual_smart_thermostat/hvac_device/heater_device.py

@@ -64,9 +64,6 @@ def hvac_action(self) -> HVACAction:
     async def async_control_hvac(self, time=None, force=False):
         _LOGGER.debug({self.__class__.__name__})
         _LOGGER.debug("async_control_hvac")
-        _LOGGER.debug(
-            "sensor safety timed out: %s", self.environment.is_sensor_safety_timed_out
-        )
         self._set_self_active()
 
         if not self._needs_control(time, force):

custom_components/dual_smart_thermostat/managers/environment_manager.py

@@ -10,17 +10,9 @@
     DEFAULT_MIN_TEMP,
 )
 from homeassistant.components.climate.const import PRESET_NONE, HVACMode
-from homeassistant.const import (
-    ATTR_TEMPERATURE,
-    PRECISION_WHOLE,
-    STATE_UNAVAILABLE,
-    STATE_UNKNOWN,
-    UnitOfTemperature,
-)
+from homeassistant.const import ATTR_TEMPERATURE, PRECISION_WHOLE, UnitOfTemperature
 from homeassistant.core import HomeAssistant, State, callback
-from homeassistant.helpers import condition
 from homeassistant.helpers.typing import ConfigType
-import homeassistant.util.dt as dt_util
 from homeassistant.util.unit_conversion import TemperatureConverter
 
 from custom_components.dual_smart_thermostat.const import (
@@ -394,50 +386,6 @@ def is_floor_cold(self) -> bool:
             return True
         return False
 
-    @property
-    def is_sensor_safety_timed_out(self) -> bool:
-        """If the sensor safety delay has timed out."""
-        sensor_state = self.hass.states.get(self._sensor)
-
-        if self._sensor_stale_duration is None or sensor_state is None:
-            return False
-
-        """Checks when the sensor was last updated. If the sensor has not been
-        updated in the last sensor_stale_duration seconds, the sensor is considered
-        timed out."""
-
-        time_diff = dt_util.utcnow() - sensor_state.last_changed
-        is_value_state = sensor_state not in (STATE_UNKNOWN, STATE_UNAVAILABLE)
-        timed_out_temp = is_value_state and (
-            time_diff.total_seconds() > self._sensor_stale_duration.total_seconds()
-        )
-
-        _LOGGER.debug(
-            "time diff: %s, delay: %s", time_diff, self._sensor_stale_duration
-        )
-        _LOGGER.debug(
-            "timed out temp: %s, dif_seconds: %s, delay_seconds: %s",
-            timed_out_temp,
-            time_diff.total_seconds(),
-            self._sensor_stale_duration.total_seconds(),
-        )
-
-        return (
-            timed_out_temp
-            or condition.state(
-                self.hass,
-                self._sensor,
-                STATE_UNKNOWN,
-                self._sensor_stale_duration,
-            )
-            or condition.state(
-                self.hass,
-                self._sensor,
-                STATE_UNAVAILABLE,
-                self._sensor_stale_duration,
-            )
-        )
-
     @callback
     def update_temp_from_state(self, state: State) -> None:
         """Update thermostat with latest state from sensor."""

tests/test_dry_mode.py

@@ -885,6 +885,17 @@ async def test_sensor_unknown_secure_ac_dry_off_outside_stale_duration(
     assert call.service == SERVICE_TURN_OFF
     assert call.data["entity_id"] == common.ENT_DRYER
 
+    # Turns back on if sensor is restored
+    calls = setup_switch_dual(hass, common.ENT_DRYER, False, False)
+    setup_humidity_sensor(hass, 71)
+    await hass.async_block_till_done()
+
+    assert len(calls) == 1
+    call = calls[0]
+    assert call.domain == HASS_DOMAIN
+    assert call.service == SERVICE_TURN_ON
+    assert call.data["entity_id"] == common.ENT_DRYER
+
 
 @pytest.mark.parametrize(
     "sensor_state",

tests/test_heater_mode.py

@@ -769,6 +769,17 @@ async def test_sensor_unknown_secure_heater_off_outside_stale_duration(
     assert call.service == SERVICE_TURN_OFF
     assert call.data["entity_id"] == common.ENT_SWITCH
 
+    # Turns back on if sensor is restored
+    calls = setup_switch(hass, False)
+    setup_sensor(hass, 19)
+    await hass.async_block_till_done()
+
+    assert len(calls) == 1
+    call = calls[0]
+    assert call.domain == HASS_DOMAIN
+    assert call.service == SERVICE_TURN_ON
+    assert call.data["entity_id"] == common.ENT_SWITCH
+
 
 @pytest.mark.parametrize(
     "sensor_state",