util.py

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"""Various utilities for the Bang & Olufsen integration."""
 
from __future__ import annotations
 
from homeassistant.core import HomeAssistant
from homeassistant.helpers import device_registry as dr
from homeassistant.helpers.device_registry import DeviceEntry
 
from .const import DOMAIN
 
 
def get_device(hass: HomeAssistant, unique_id: str) -> DeviceEntry:
    """Get the device."""
    device_registry = dr.async_get(hass)
    device = device_registry.async_get_device({(DOMAIN, unique_id)})
    assert device
 
    return device
 
 
def get_serial_number_from_jid(jid: str) -> str:
    """Get serial number from Beolink JID."""
    return jid.split(".")[2].split("@")[0]