Extract foscam base entity for reuse (#108893)

* Extract foscam base entity for reuse

* Cleanup

* More cleanup

* Cleanup constructor

* Use more constants

homeassistant/components/foscam/entity.py

@@ -0,0 +1,30 @@
+"""Component providing basic support for Foscam IP cameras."""
+from __future__ import annotations
+
+from homeassistant.const import ATTR_HW_VERSION, ATTR_MODEL, ATTR_SW_VERSION
+from homeassistant.helpers.device_registry import DeviceInfo
+from homeassistant.helpers.update_coordinator import CoordinatorEntity
+
+from .const import DOMAIN
+from .coordinator import FoscamCoordinator
+
+
+class FoscamEntity(CoordinatorEntity[FoscamCoordinator]):
+    """Base entity for Foscam camera."""
+
+    def __init__(
+        self,
+        coordinator: FoscamCoordinator,
+        entry_id: str,
+    ) -> None:
+        """Initialize the base Foscam entity."""
+        super().__init__(coordinator)
+
+        self._attr_device_info = DeviceInfo(
+            identifiers={(DOMAIN, entry_id)},
+            manufacturer="Foscam",
+        )
+        if dev_info := coordinator.data.get("dev_info"):
+            self._attr_device_info[ATTR_MODEL] = dev_info["productName"]
+            self._attr_device_info[ATTR_SW_VERSION] = dev_info["firmwareVer"]
+            self._attr_device_info[ATTR_HW_VERSION] = dev_info["hardwareVer"]