__init__.py

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"""The Landis+Gyr Heat Meter integration."""
 
from __future__ import annotations
 
import logging
from typing import Any
 
import ultraheat_api
 
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import CONF_DEVICE, Platform
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers.entity_registry import RegistryEntry, async_migrate_entries
 
from .const import DOMAIN
from .coordinator import UltraheatCoordinator
 
_LOGGER = logging.getLogger(__name__)
 
PLATFORMS: list[Platform] = [Platform.SENSOR]
 
 
async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
    """Set up heat meter from a config entry."""
 
    _LOGGER.debug("Initializing %s integration on %s", DOMAIN, entry.data[CONF_DEVICE])
    reader = ultraheat_api.UltraheatReader(entry.data[CONF_DEVICE])
    api = ultraheat_api.HeatMeterService(reader)
 
    coordinator = UltraheatCoordinator(hass, api)
    await coordinator.async_config_entry_first_refresh()
 
    hass.data.setdefault(DOMAIN, {})[entry.entry_id] = coordinator
 
    await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
 
    return True
 
 
async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
    """Unload a config entry."""
    if unload_ok := await hass.config_entries.async_unload_platforms(entry, PLATFORMS):
        hass.data[DOMAIN].pop(entry.entry_id)
 
    return unload_ok
 
 
async def async_migrate_entry(hass: HomeAssistant, config_entry: ConfigEntry) -> bool:
    """Migrate old entry."""
    _LOGGER.debug("Migrating from version %s", config_entry.version)
 
    # Removing domain name and config entry id from entity unique id's, replacing it with device number
    if config_entry.version == 1:
        hass.config_entries.async_update_entry(config_entry, version=2)
 
        device_number = config_entry.data["device_number"]
 
        @callback
        def update_entity_unique_id(
            entity_entry: RegistryEntry,
        ) -> dict[str, Any] | None:
            """Update unique ID of entity entry."""
            if entity_entry.platform in entity_entry.unique_id:
                return {
                    "new_unique_id": entity_entry.unique_id.replace(
                        f"{entity_entry.platform}_{entity_entry.config_entry_id}",
                        f"{device_number}",
                    )
                }
            return None
 
        await async_migrate_entries(
            hass, config_entry.entry_id, update_entity_unique_id
        )
 
    _LOGGER.debug("Migration to version %s successful", config_entry.version)
 
    return True