Reolink add pan position sensor (#98592)

* Add PTZ pan position sensor

* fix typing

* fix typing

homeassistant/components/reolink/sensor.py

@@ -21,14 +21,30 @@ from homeassistant.helpers.typing import StateType
 
 from . import ReolinkData
 from .const import DOMAIN
-from .entity import ReolinkHostCoordinatorEntity
+from .entity import ReolinkChannelCoordinatorEntity, ReolinkHostCoordinatorEntity
+
+
+@dataclass
+class ReolinkSensorEntityDescriptionMixin:
+    """Mixin values for Reolink  sensor entities for a camera channel."""
+
+    value: Callable[[Host, int], int]
+
+
+@dataclass
+class ReolinkSensorEntityDescription(
+    SensorEntityDescription, ReolinkSensorEntityDescriptionMixin
+):
+    """A class that describes sensor entities for a camera channel."""
+
+    supported: Callable[[Host, int], bool] = lambda api, ch: True
 
 
 @dataclass
 class ReolinkHostSensorEntityDescriptionMixin:
     """Mixin values for Reolink host sensor entities."""
 
-    value: Callable[[Host], bool]
+    value: Callable[[Host], int]
 
 
 @dataclass
@@ -37,9 +53,21 @@ class ReolinkHostSensorEntityDescription(
 ):
     """A class that describes host sensor entities."""
 
-    supported: Callable[[Host], bool] = lambda host: True
+    supported: Callable[[Host], bool] = lambda api: True
 
 
+SENSORS = (
+    ReolinkSensorEntityDescription(
+        key="ptz_pan_position",
+        translation_key="ptz_pan_position",
+        icon="mdi:pan",
+        state_class=SensorStateClass.MEASUREMENT,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        value=lambda api, ch: api.ptz_pan_position(ch),
+        supported=lambda api, ch: api.supported(ch, "ptz_position"),
+    ),
+)
+
 HOST_SENSORS = (
     ReolinkHostSensorEntityDescription(
         key="wifi_signal",
@@ -62,11 +90,45 @@ async def async_setup_entry(
     """Set up a Reolink IP Camera."""
     reolink_data: ReolinkData = hass.data[DOMAIN][config_entry.entry_id]
 
-    async_add_entities(
-        ReolinkHostSensorEntity(reolink_data, entity_description)
-        for entity_description in HOST_SENSORS
-        if entity_description.supported(reolink_data.host.api)
+    entities: list[ReolinkSensorEntity | ReolinkHostSensorEntity] = [
+        ReolinkSensorEntity(reolink_data, channel, entity_description)
+        for entity_description in SENSORS
+        for channel in reolink_data.host.api.channels
+        if entity_description.supported(reolink_data.host.api, channel)
+    ]
+    entities.extend(
+        [
+            ReolinkHostSensorEntity(reolink_data, entity_description)
+            for entity_description in HOST_SENSORS
+            if entity_description.supported(reolink_data.host.api)
+        ]
     )
+    async_add_entities(entities)
+
+
+class ReolinkSensorEntity(ReolinkChannelCoordinatorEntity, SensorEntity):
+    """Base sensor class for Reolink IP camera sensors."""
+
+    entity_description: ReolinkSensorEntityDescription
+
+    def __init__(
+        self,
+        reolink_data: ReolinkData,
+        channel: int,
+        entity_description: ReolinkSensorEntityDescription,
+    ) -> None:
+        """Initialize Reolink sensor."""
+        super().__init__(reolink_data, channel)
+        self.entity_description = entity_description
+
+        self._attr_unique_id = (
+            f"{self._host.unique_id}_{channel}_{entity_description.key}"
+        )
+
+    @property
+    def native_value(self) -> StateType | date | datetime | Decimal:
+        """Return the value reported by the sensor."""
+        return self.entity_description.value(self._host.api, self._channel)
 
 
 class ReolinkHostSensorEntity(ReolinkHostCoordinatorEntity, SensorEntity):
@@ -79,7 +141,7 @@ class ReolinkHostSensorEntity(ReolinkHostCoordinatorEntity, SensorEntity):
         reolink_data: ReolinkData,
         entity_description: ReolinkHostSensorEntityDescription,
     ) -> None:
-        """Initialize Reolink binary sensor."""
+        """Initialize Reolink host sensor."""
         super().__init__(reolink_data)
         self.entity_description = entity_description