"""Support for 1-Wire environment select entities."""

from datetime import timedelta
import os
from typing import override

from homeassistant.components.select import SelectEntity, SelectEntityDescription
from homeassistant.const import EntityCategory
from homeassistant.core import HomeAssistant
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback

from .entity import OneWireEntity
from .onewirehub import (
    SIGNAL_NEW_DEVICE_CONNECTED,
    OneWireConfigEntry,
    OneWireHub,
    OWDeviceDescription,
)

# the library uses non-persistent connections
# and concurrent access to the bus is managed by the server
PARALLEL_UPDATES = 0
SCAN_INTERVAL = timedelta(seconds=30)


ENTITY_DESCRIPTIONS: dict[str, tuple[SelectEntityDescription, ...]] = {
    "28": (
        SelectEntityDescription(
            key="tempres",
            entity_category=EntityCategory.CONFIG,
            options=["9", "10", "11", "12"],
            translation_key="tempres",
            entity_registry_enabled_default=False,
        ),
    ),
}


async def async_setup_entry(
    hass: HomeAssistant,
    config_entry: OneWireConfigEntry,
    async_add_entities: AddConfigEntryEntitiesCallback,
) -> None:
    """Set up 1-Wire platform."""

    async def _add_entities(
        hub: OneWireHub, devices: list[OWDeviceDescription]
    ) -> None:
        """Add 1-Wire entities for all devices."""
        if not devices:
            return
        async_add_entities(get_entities(hub, devices), True)

    hub = config_entry.runtime_data
    await _add_entities(hub, hub.devices)
    config_entry.async_on_unload(
        async_dispatcher_connect(hass, SIGNAL_NEW_DEVICE_CONNECTED, _add_entities)
    )


def get_entities(
    onewire_hub: OneWireHub, devices: list[OWDeviceDescription]
) -> list[OneWireSelectEntity]:
    """Get a list of entities."""
    entities: list[OneWireSelectEntity] = []

    for device in devices:
        family = device.family
        device_id = device.id
        device_info = device.device_info

        if family not in ENTITY_DESCRIPTIONS:
            continue
        for description in ENTITY_DESCRIPTIONS[family]:
            device_file = os.path.join(os.path.split(device.path)[0], description.key)
            entities.append(
                OneWireSelectEntity(
                    description=description,
                    device_id=device_id,
                    device_file=device_file,
                    device_info=device_info,
                    owproxy=onewire_hub.owproxy,
                )
            )

    return entities


class OneWireSelectEntity(OneWireEntity, SelectEntity):
    """Implementation of a 1-Wire switch."""

    @property
    @override
    def current_option(self) -> str | None:
        """Return the selected entity option to represent the entity state."""
        return self._state

    @override
    async def async_select_option(self, option: str) -> None:
        """Change the selected option."""
        await self._write_value(option.encode("ascii"))