[ci skip] home assistant integration

custom_components/victron_mk2_mqtt/binary_sensor.py

@@ -0,0 +1,48 @@
+"""Binary sensors for Victron MK2 MQTT integration."""
+
+from __future__ import annotations
+
+from typing import Any
+
+from homeassistant.components.binary_sensor import BinarySensorEntity
+from homeassistant.const import EntityCategory
+from homeassistant.core import HomeAssistant
+
+from .const import DATA_BRIDGE, DOMAIN
+from .coordinator import VictronMqttBridge
+from .entity import VictronMqttEntity
+
+
+async def async_setup_platform(
+    hass: HomeAssistant,
+    config: dict[str, Any],
+    async_add_entities,
+    discovery_info: dict[str, Any] | None = None,
+) -> None:
+    """Set up Victron binary sensors."""
+    bridge: VictronMqttBridge = hass.data[DOMAIN][DATA_BRIDGE]
+    async_add_entities([VictronDataValidBinarySensor(bridge)])
+
+
+class VictronDataValidBinarySensor(VictronMqttEntity, BinarySensorEntity):
+    """MQTT data validity sensor."""
+
+    _attr_name = "Data Valid"
+    _attr_entity_category = EntityCategory.DIAGNOSTIC
+    _attr_icon = "mdi:check-network-outline"
+
+    def __init__(self, bridge: VictronMqttBridge) -> None:
+        super().__init__(bridge)
+        self._attr_unique_id = f"{bridge.topic_root}_data_valid"
+
+    @property
+    def is_on(self) -> bool:
+        value = self.bridge.metric("Valid")
+        if isinstance(value, bool):
+            return value
+        if isinstance(value, (int, float)):
+            return value != 0
+        if isinstance(value, str):
+            normalized = value.strip().lower()
+            return normalized in {"1", "true", "on", "yes"}
+        return False