core/homeassistant/components/samsungtv/helpers.py

66 lines
2.0 KiB
Python

"""Helper functions for Samsung TV."""
from __future__ import annotations
from homeassistant.config_entries import ConfigEntryState
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers import device_registry as dr, entity_registry as er
from homeassistant.helpers.device_registry import DeviceEntry
from . import SamsungTVConfigEntry
from .bridge import SamsungTVBridge
from .const import DOMAIN
@callback
def async_get_device_entry_by_device_id(
hass: HomeAssistant, device_id: str
) -> DeviceEntry:
"""Get Device Entry from Device Registry by device ID.
Raises ValueError if device ID is invalid.
"""
device_reg = dr.async_get(hass)
if (device := device_reg.async_get(device_id)) is None:
raise ValueError(f"Device {device_id} is not a valid {DOMAIN} device.")
return device
@callback
def async_get_device_id_from_entity_id(hass: HomeAssistant, entity_id: str) -> str:
"""Get device ID from an entity ID.
Raises ValueError if entity or device ID is invalid.
"""
ent_reg = er.async_get(hass)
entity_entry = ent_reg.async_get(entity_id)
if (
entity_entry is None
or entity_entry.device_id is None
or entity_entry.platform != DOMAIN
):
raise ValueError(f"Entity {entity_id} is not a valid {DOMAIN} entity.")
return entity_entry.device_id
@callback
def async_get_client_by_device_entry(
hass: HomeAssistant, device: DeviceEntry
) -> SamsungTVBridge:
"""Get SamsungTVBridge from Device Registry by device entry.
Raises ValueError if client is not found.
"""
entry: SamsungTVConfigEntry | None
for config_entry_id in device.config_entries:
entry = hass.config_entries.async_get_entry(config_entry_id)
if entry and entry.domain == DOMAIN and entry.state is ConfigEntryState.LOADED:
return entry.runtime_data.bridge
raise ValueError(
f"Device {device.id} is not from an existing {DOMAIN} config entry"
)