Add common childsetup interface (#1470)

Add a common interface for the `childsetup` module across `smart` and `smartcam` hubs.
Co-authored-by: Teemu R. <tpr@iki.fi>

kasa/smartcam/modules/childsetup.py

@@ -9,12 +9,13 @@ import asyncio
 import logging
 
 from ...feature import Feature
+from ...interfaces.childsetup import ChildSetup as ChildSetupInterface
 from ..smartcammodule import SmartCamModule
 
 _LOGGER = logging.getLogger(__name__)
 
 
-class ChildSetup(SmartCamModule):
+class ChildSetup(SmartCamModule, ChildSetupInterface):
     """Implementation for child device setup."""
 
     REQUIRED_COMPONENT = "childQuickSetup"
@@ -22,6 +23,9 @@ class ChildSetup(SmartCamModule):
     QUERY_MODULE_NAME = "childControl"
     _categories: list[str] = []
 
+    # Supported child device categories will hardly ever change
+    MINIMUM_UPDATE_INTERVAL_SECS = 60 * 60 * 24
+
     def _initialize_features(self) -> None:
         """Initialize features."""
         self._add_feature(
@@ -37,19 +41,18 @@ class ChildSetup(SmartCamModule):
         )
 
     async def _post_update_hook(self) -> None:
-        if not self._categories:
-            self._categories = [
-                cat["category"].replace("ipcamera", "camera")
-                for cat in self.data["device_category_list"]
-            ]
+        self._categories = [
+            cat["category"].replace("ipcamera", "camera")
+            for cat in self.data["device_category_list"]
+        ]
 
     @property
-    def supported_child_device_categories(self) -> list[str]:
+    def supported_categories(self) -> list[str]:
         """Supported child device categories."""
         return self._categories
 
     async def pair(self, *, timeout: int = 10) -> list[dict]:
-        """Scan for new devices and pair after discovering first new device."""
+        """Scan for new devices and pair them."""
         await self.call(
             "startScanChildDevice", {"childControl": {"category": self._categories}}
         )
@@ -76,7 +79,7 @@ class ChildSetup(SmartCamModule):
         )
         return await self._add_devices(detected_list)
 
-    async def _add_devices(self, detected_list: list[dict]) -> list:
+    async def _add_devices(self, detected_list: list[dict]) -> list[dict]:
         """Add devices based on getScanChildDeviceList response."""
         await self.call(
             "addScanChildDeviceList",
@@ -104,4 +107,6 @@ class ChildSetup(SmartCamModule):
         _LOGGER.info("Going to unpair %s from %s", device_id, self)
 
         payload = {"childControl": {"child_device_list": [{"device_id": device_id}]}}
-        return await self.call("removeChildDeviceList", payload)
+        res = await self.call("removeChildDeviceList", payload)
+        await self._device.update()
+        return res