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feat: restore and keep prices if the API is unavailable #211

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feat: restore and keep prices if the API is unavailable #211

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12 changes: 10 additions & 2 deletions custom_components/prix_carburant/sensor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -117,6 +117,7 @@ def __init__(
self.fuel = fuel

self._last_update = None
self._last_value: float | None = None
self._attr_unique_id = "_".join([DOMAIN, str(self.station_id), self.fuel])
if self.station_info[ATTR_NAME] != "undefined":
station_name = self.station_info[ATTR_NAME]
Expand Down Expand Up @@ -168,6 +169,12 @@ def __init__(
),
}

async def async_added_to_hass(self) -> None:
"""Restore last state on startup."""
await super().async_added_to_hass()
if (last_state := await self.async_get_last_sensor_data()) is not None:
self._last_value = last_state.native_value

@property
def native_value(self) -> float | None:
"""Return the current price."""
Expand All @@ -193,5 +200,6 @@ def native_value(self) -> float | None:
err,
)
if fuel.get(ATTR_PRICE) is not None:
return round(float(fuel[ATTR_PRICE]), 3)
return None
self._last_value = round(float(fuel[ATTR_PRICE]), 3)
return self._last_value
return self._last_value
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