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core/homeassistant/components/brother/__init__.py

91 lines
2.8 KiB
Python

"""The Brother component."""
from __future__ import annotations
import logging
from brother import Brother, SnmpError
from homeassistant.components.snmp import async_get_snmp_engine
from homeassistant.const import CONF_HOST, CONF_PORT, CONF_TYPE, Platform
from homeassistant.core import HomeAssistant
from homeassistant.exceptions import ConfigEntryError, ConfigEntryNotReady
from .const import (
CONF_COMMUNITY,
DEFAULT_COMMUNITY,
DEFAULT_PORT,
DOMAIN,
SECTION_ADVANCED_SETTINGS,
)
from .coordinator import BrotherConfigEntry, BrotherDataUpdateCoordinator
_LOGGER = logging.getLogger(__name__)
PLATFORMS = [Platform.SENSOR]
async def async_setup_entry(hass: HomeAssistant, entry: BrotherConfigEntry) -> bool:
"""Set up Brother from a config entry."""
host = entry.data[CONF_HOST]
port = entry.data[SECTION_ADVANCED_SETTINGS][CONF_PORT]
community = entry.data[SECTION_ADVANCED_SETTINGS][CONF_COMMUNITY]
printer_type = entry.data[CONF_TYPE]
snmp_engine = await async_get_snmp_engine(hass)
try:
brother = await Brother.create(
host, port, community, printer_type=printer_type, snmp_engine=snmp_engine
)
except (ConnectionError, SnmpError, TimeoutError) as error:
raise ConfigEntryNotReady(
translation_domain=DOMAIN,
translation_key="cannot_connect",
translation_placeholders={
"device": entry.title,
"error": repr(error),
},
) from error
coordinator = BrotherDataUpdateCoordinator(hass, entry, brother)
await coordinator.async_config_entry_first_refresh()
if brother.serial.lower() != entry.unique_id:
raise ConfigEntryError(
translation_domain=DOMAIN,
translation_key="serial_mismatch",
translation_placeholders={
"device": entry.title,
},
)
entry.runtime_data = coordinator
await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
return True
async def async_unload_entry(hass: HomeAssistant, entry: BrotherConfigEntry) -> bool:
"""Unload a config entry."""
return await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
async def async_migrate_entry(hass: HomeAssistant, entry: BrotherConfigEntry) -> bool:
"""Migrate an old entry."""
if entry.version == 1 and entry.minor_version < 2:
new_data = entry.data.copy()
new_data[SECTION_ADVANCED_SETTINGS] = {
CONF_PORT: DEFAULT_PORT,
CONF_COMMUNITY: DEFAULT_COMMUNITY,
}
hass.config_entries.async_update_entry(entry, data=new_data, minor_version=2)
_LOGGER.info(
"Migration to configuration version %s.%s successful",
entry.version,
entry.minor_version,
)
return True