Fix error when last state was unavailable

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## 5.3.1
+
+- Fix error when last state was unavailable
+
 ## 5.3.0
 
 - Fix deprecations

custom_components/ecodevices/manifest.json

@@ -13,5 +13,5 @@
     "xmltodict==0.13.0",
     "pyecodevices==1.7.0"
   ],
-  "version": "5.3.0"
+  "version": "5.3.1"
 }

custom_components/ecodevices/sensor.py

@@ -13,7 +13,12 @@
     SensorStateClass,
 )
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import UnitOfApparentPower, UnitOfEnergy
+from homeassistant.const import (
+    STATE_UNAVAILABLE,
+    STATE_UNKNOWN,
+    UnitOfApparentPower,
+    UnitOfEnergy,
+)
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.typing import StateType
@@ -336,7 +341,10 @@ async def async_added_to_hass(self) -> None:
 
         last_state = await self.async_get_last_state()
 
-        if last_state:
+        if last_state is not None and last_state.state not in (
+            STATE_UNKNOWN,
+            STATE_UNAVAILABLE,
+        ):
             self._last_state = last_state.state
 
 
@@ -375,6 +383,7 @@ def native_value(self) -> float | None:
                 self.entity_id,
                 self._last_state,
             )
+            return None
         _LOGGER.debug("Value for %s equal to 0, ignore", self.entity_id)
         return None
 
@@ -397,6 +406,7 @@ def native_value(self) -> float | None:
                 self.entity_id,
                 self._last_state,
             )
+            return None
         _LOGGER.debug("Value for %s equal to 0, ignore", self.entity_id)
         return None
 
@@ -417,6 +427,7 @@ def native_value(self) -> float | None:
                 self.entity_id,
                 self._last_state,
             )
+            return None
         _LOGGER.debug("Value for %s equal to 0, ignore", self.entity_id)
         return None
 
@@ -437,6 +448,7 @@ def native_value(self) -> float | None:
                 self.entity_id,
                 self._last_state,
             )
+            return None
         _LOGGER.debug("Value for %s equal to 0, ignore", self.entity_id)
         return None
 
@@ -460,6 +472,7 @@ def native_value(self) -> float | None:
                 self.entity_id,
                 self._last_state,
             )
+            return None
         _LOGGER.debug("Value for %s equal to 0, ignore", self.entity_id)
         return None
 
@@ -480,6 +493,7 @@ def native_value(self) -> float | None:
                 self.entity_id,
                 self._last_state,
             )
+            return None
         _LOGGER.debug("Value for %s equal to 0, ignore", self.entity_id)
         return None