from __future__ import annotations

from homeassistant.components.switch import SwitchEntity
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.restore_state import RestoreEntity

from .const import DOMAIN
from .coordinator import EaseeSolarCoordinator


async def async_setup_entry(
    hass: HomeAssistant,
    entry: ConfigEntry,
    async_add_entities: AddEntitiesCallback,
) -> None:
    coordinator: EaseeSolarCoordinator = hass.data[DOMAIN][entry.entry_id]
    async_add_entities([
        SolarChargingSwitch(coordinator),
        StopGraceSwitch(coordinator),
    ])


class SolarChargingSwitch(RestoreEntity, SwitchEntity):
    _attr_has_entity_name = True
    _attr_name = "Solar Charging"
    _attr_icon = "mdi:solar-power"

    def __init__(self, coordinator: EaseeSolarCoordinator) -> None:
        self._coordinator = coordinator
        self._attr_unique_id = f"{coordinator.charger_id}_solar_charging_enabled"
        self.entity_id = f"switch.esc_{coordinator.charger_id.lower()}_solar_charging"

    async def async_added_to_hass(self) -> None:
        await super().async_added_to_hass()
        last_state = await self.async_get_last_state()
        if last_state is not None:
            self._coordinator.solar_charging_enabled = last_state.state == "on"

    @property
    def is_on(self) -> bool:
        return self._coordinator.solar_charging_enabled

    async def async_turn_on(self, **kwargs) -> None:
        self._coordinator.solar_charging_enabled = True
        await self._coordinator.async_request_refresh()
        self.async_write_ha_state()

    async def async_turn_off(self, **kwargs) -> None:
        self._coordinator.solar_charging_enabled = False
        await self._coordinator.async_request_refresh()
        self.async_write_ha_state()


class StopGraceSwitch(RestoreEntity, SwitchEntity):
    _attr_has_entity_name = True
    _attr_name = "Stop Grace"
    _attr_icon = "mdi:timer-pause"

    def __init__(self, coordinator: EaseeSolarCoordinator) -> None:
        self._coordinator = coordinator
        self._attr_unique_id = f"{coordinator.charger_id}_stop_grace_enabled"
        self.entity_id = f"switch.esc_{coordinator.charger_id.lower()}_stop_grace"

    async def async_added_to_hass(self) -> None:
        await super().async_added_to_hass()
        last_state = await self.async_get_last_state()
        if last_state is not None:
            self._coordinator.stop_grace_enabled = last_state.state == "on"

    @property
    def is_on(self) -> bool:
        return self._coordinator.stop_grace_enabled

    async def async_turn_on(self, **kwargs) -> None:
        self._coordinator.stop_grace_enabled = True
        self.async_write_ha_state()

    async def async_turn_off(self, **kwargs) -> None:
        self._coordinator.stop_grace_enabled = False
        # Reset any running timer so the charger stops on the next poll
        self._coordinator.cancel_stop_grace()
        await self._coordinator.async_request_refresh()
        self.async_write_ha_state()