"""Support for Satel Integra modifiable outputs represented as switches."""

from __future__ import annotations

import logging
from typing import Any

from homeassistant.components.switch import SwitchEntity
from homeassistant.const import CONF_CODE, CONF_NAME
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback

from .const import (
    CONF_SWITCHABLE_OUTPUT_NUMBER,
    SIGNAL_OUTPUTS_UPDATED,
    SUBENTRY_TYPE_SWITCHABLE_OUTPUT,
    SatelConfigEntry,
)

_LOGGER = logging.getLogger(__name__)


async def async_setup_entry(
    hass: HomeAssistant,
    config_entry: SatelConfigEntry,
    async_add_entities: AddConfigEntryEntitiesCallback,
) -> None:
    """Set up the Satel Integra switch devices."""

    controller = config_entry.runtime_data

    switchable_output_subentries = filter(
        lambda entry: entry.subentry_type == SUBENTRY_TYPE_SWITCHABLE_OUTPUT,
        config_entry.subentries.values(),
    )

    for subentry in switchable_output_subentries:
        switchable_output_num = subentry.data[CONF_SWITCHABLE_OUTPUT_NUMBER]
        switchable_output_name = subentry.data[CONF_NAME]

        async_add_entities(
            [
                SatelIntegraSwitch(
                    controller,
                    switchable_output_num,
                    switchable_output_name,
                    config_entry.options.get(CONF_CODE),
                ),
            ],
            config_subentry_id=subentry.subentry_id,
        )


class SatelIntegraSwitch(SwitchEntity):
    """Representation of an Satel switch."""

    _attr_should_poll = False

    def __init__(self, controller, device_number, device_name, code):
        """Initialize the binary_sensor."""
        self._device_number = device_number
        self._attr_unique_id = f"satel_switch_{device_number}"
        self._name = device_name
        self._state = False
        self._code = code
        self._satel = controller

    async def async_added_to_hass(self) -> None:
        """Register callbacks."""
        async_dispatcher_connect(
            self.hass, SIGNAL_OUTPUTS_UPDATED, self._devices_updated
        )

    @callback
    def _devices_updated(self, zones):
        """Update switch state, if needed."""
        _LOGGER.debug("Update switch name: %s zones: %s", self._name, zones)
        if self._device_number in zones:
            new_state = self._read_state()
            _LOGGER.debug("New state: %s", new_state)
            if new_state != self._state:
                self._state = new_state
                self.async_write_ha_state()

    async def async_turn_on(self, **kwargs: Any) -> None:
        """Turn the device on."""
        _LOGGER.debug("Switch: %s status: %s, turning on", self._name, self._state)
        await self._satel.set_output(self._code, self._device_number, True)
        self.async_write_ha_state()

    async def async_turn_off(self, **kwargs: Any) -> None:
        """Turn the device off."""
        _LOGGER.debug(
            "Switch name: %s status: %s, turning off", self._name, self._state
        )
        await self._satel.set_output(self._code, self._device_number, False)
        self.async_write_ha_state()

    @property
    def is_on(self):
        """Return true if device is on."""
        self._state = self._read_state()
        return self._state

    def _read_state(self):
        """Read state of the device."""
        return self._device_number in self._satel.violated_outputs

    @property
    def name(self):
        """Return the name of the switch."""
        return self._name