"""Home Assistant component for accessing the Wallbox Portal API button."""

from collections.abc import Awaitable, Callable
from dataclasses import dataclass

from homeassistant.components.button import ButtonEntity, ButtonEntityDescription
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback

from .const import (
    CHARGER_DATA_KEY,
    CHARGER_RESUME_SCHEDULE_KEY,
    CHARGER_SERIAL_NUMBER_KEY,
)
from .coordinator import WallboxConfigEntry, WallboxCoordinator
from .entity import WallboxEntity


@dataclass(frozen=True, kw_only=True)
class WallboxButtonEntityDescription(ButtonEntityDescription):
    """Describes Wallbox button entity."""

    press_fn: Callable[[WallboxCoordinator], Awaitable[None]]


BUTTON_TYPES: dict[str, WallboxButtonEntityDescription] = {
    CHARGER_RESUME_SCHEDULE_KEY: WallboxButtonEntityDescription(
        key=CHARGER_RESUME_SCHEDULE_KEY,
        translation_key=CHARGER_RESUME_SCHEDULE_KEY,
        press_fn=lambda coordinator: coordinator.async_resume_schedule(),
    ),
}


async def async_setup_entry(
    hass: HomeAssistant,
    entry: WallboxConfigEntry,
    async_add_entities: AddConfigEntryEntitiesCallback,
) -> None:
    """Create wallbox button entities in HASS."""
    coordinator: WallboxCoordinator = entry.runtime_data
    async_add_entities(
        [WallboxButton(coordinator, BUTTON_TYPES[CHARGER_RESUME_SCHEDULE_KEY])]
    )


# Coordinator is used to centralize the data updates
PARALLEL_UPDATES = 0


class WallboxButton(WallboxEntity, ButtonEntity):
    """Representation of the Wallbox portal."""

    entity_description: WallboxButtonEntityDescription

    def __init__(
        self,
        coordinator: WallboxCoordinator,
        description: WallboxButtonEntityDescription,
    ) -> None:
        """Initialize a Wallbox button."""
        super().__init__(coordinator)
        self.entity_description = description
        self._attr_unique_id = (
            f"{description.key}-"
            f"{coordinator.data[CHARGER_DATA_KEY][CHARGER_SERIAL_NUMBER_KEY]}"
        )

    async def async_press(self) -> None:
        """Resume schedule and EcoSmart mode after a manual stop."""
        await self.entity_description.press_fn(self.coordinator)