Add diagnostics support to HomeKit (#65942)

* Add diagnostics support to HomeKit

* remove debug

homeassistant/components/homekit/diagnostics.py

@@ -0,0 +1,44 @@
+"""Diagnostics support for HomeKit."""
+from __future__ import annotations
+
+from typing import Any
+
+from pyhap.accessory_driver import AccessoryDriver
+from pyhap.state import State
+
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+
+from . import HomeKit
+from .const import DOMAIN, HOMEKIT
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, entry: ConfigEntry
+) -> dict[str, Any]:
+    """Return diagnostics for a config entry."""
+    homekit: HomeKit = hass.data[DOMAIN][entry.entry_id][HOMEKIT]
+    driver: AccessoryDriver = homekit.driver
+    data: dict[str, Any] = {
+        "status": homekit.status,
+        "config-entry": {
+            "title": entry.title,
+            "version": entry.version,
+            "data": dict(entry.data),
+            "options": dict(entry.options),
+        },
+    }
+    if not driver:
+        return data
+    data.update(driver.get_accessories())
+    state: State = driver.state
+    data.update(
+        {
+            "client_properties": {
+                str(client): props for client, props in state.client_properties.items()
+            },
+            "config_version": state.config_version,
+            "pairing_id": state.mac,
+        }
+    )
+    return data