"""Support to interface with universal remote control devices."""
from datetime import timedelta
import functools as ft
import logging
from typing import Any, Dict, Iterable, List, Optional, cast

import voluptuous as vol

from homeassistant.config_entries import ConfigEntry
from homeassistant.const import (
    ATTR_COMMAND,
    SERVICE_TOGGLE,
    SERVICE_TURN_OFF,
    SERVICE_TURN_ON,
    STATE_ON,
)
import homeassistant.helpers.config_validation as cv
from homeassistant.helpers.config_validation import (  # noqa: F401
    PLATFORM_SCHEMA,
    PLATFORM_SCHEMA_BASE,
    make_entity_service_schema,
)
from homeassistant.helpers.entity import ToggleEntity
from homeassistant.helpers.entity_component import EntityComponent
from homeassistant.helpers.typing import ConfigType, HomeAssistantType
from homeassistant.loader import bind_hass

# mypy: allow-untyped-calls, allow-untyped-defs, no-check-untyped-defs

_LOGGER = logging.getLogger(__name__)

ATTR_ACTIVITY = "activity"
ATTR_ACTIVITY_LIST = "activity_list"
ATTR_CURRENT_ACTIVITY = "current_activity"
ATTR_COMMAND_TYPE = "command_type"
ATTR_DEVICE = "device"
ATTR_NUM_REPEATS = "num_repeats"
ATTR_DELAY_SECS = "delay_secs"
ATTR_HOLD_SECS = "hold_secs"
ATTR_ALTERNATIVE = "alternative"
ATTR_TIMEOUT = "timeout"

DOMAIN = "remote"
SCAN_INTERVAL = timedelta(seconds=30)

ENTITY_ID_FORMAT = DOMAIN + ".{}"

MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)

SERVICE_SEND_COMMAND = "send_command"
SERVICE_LEARN_COMMAND = "learn_command"
SERVICE_DELETE_COMMAND = "delete_command"
SERVICE_SYNC = "sync"

DEFAULT_NUM_REPEATS = 1
DEFAULT_DELAY_SECS = 0.4
DEFAULT_HOLD_SECS = 0

SUPPORT_LEARN_COMMAND = 1
SUPPORT_DELETE_COMMAND = 2
SUPPORT_ACTIVITY = 4

REMOTE_SERVICE_ACTIVITY_SCHEMA = make_entity_service_schema(
    {vol.Optional(ATTR_ACTIVITY): cv.string}
)


@bind_hass
def is_on(hass: HomeAssistantType, entity_id: str) -> bool:
    """Return if the remote is on based on the statemachine."""
    return hass.states.is_state(entity_id, STATE_ON)


async def async_setup(hass: HomeAssistantType, config: ConfigType) -> bool:
    """Track states and offer events for remotes."""
    component = hass.data[DOMAIN] = EntityComponent(
        _LOGGER, DOMAIN, hass, SCAN_INTERVAL
    )
    await component.async_setup(config)

    component.async_register_entity_service(
        SERVICE_TURN_OFF, REMOTE_SERVICE_ACTIVITY_SCHEMA, "async_turn_off"
    )

    component.async_register_entity_service(
        SERVICE_TURN_ON, REMOTE_SERVICE_ACTIVITY_SCHEMA, "async_turn_on"
    )

    component.async_register_entity_service(
        SERVICE_TOGGLE, REMOTE_SERVICE_ACTIVITY_SCHEMA, "async_toggle"
    )

    component.async_register_entity_service(
        SERVICE_SEND_COMMAND,
        {
            vol.Required(ATTR_COMMAND): vol.All(cv.ensure_list, [cv.string]),
            vol.Optional(ATTR_DEVICE): cv.string,
            vol.Optional(
                ATTR_NUM_REPEATS, default=DEFAULT_NUM_REPEATS
            ): cv.positive_int,
            vol.Optional(ATTR_DELAY_SECS): vol.Coerce(float),
            vol.Optional(ATTR_HOLD_SECS, default=DEFAULT_HOLD_SECS): vol.Coerce(float),
        },
        "async_send_command",
    )

    component.async_register_entity_service(
        SERVICE_LEARN_COMMAND,
        {
            vol.Optional(ATTR_DEVICE): cv.string,
            vol.Optional(ATTR_COMMAND): vol.All(cv.ensure_list, [cv.string]),
            vol.Optional(ATTR_COMMAND_TYPE): cv.string,
            vol.Optional(ATTR_ALTERNATIVE): cv.boolean,
            vol.Optional(ATTR_TIMEOUT): cv.positive_int,
        },
        "async_learn_command",
    )

    component.async_register_entity_service(
        SERVICE_DELETE_COMMAND,
        {
            vol.Required(ATTR_COMMAND): vol.All(cv.ensure_list, [cv.string]),
            vol.Optional(ATTR_DEVICE): cv.string,
        },
        "async_delete_command",
    )

    return True


async def async_setup_entry(hass: HomeAssistantType, entry: ConfigEntry) -> bool:
    """Set up a config entry."""
    return await cast(EntityComponent, hass.data[DOMAIN]).async_setup_entry(entry)


async def async_unload_entry(hass: HomeAssistantType, entry: ConfigEntry) -> bool:
    """Unload a config entry."""
    return await cast(EntityComponent, hass.data[DOMAIN]).async_unload_entry(entry)


class RemoteEntity(ToggleEntity):
    """Representation of a remote."""

    @property
    def supported_features(self) -> int:
        """Flag supported features."""
        return 0

    @property
    def current_activity(self) -> Optional[str]:
        """Active activity."""
        return None

    @property
    def activity_list(self) -> Optional[List[str]]:
        """List of available activities."""
        return None

    @property
    def state_attributes(self) -> Optional[Dict[str, Any]]:
        """Return optional state attributes."""
        if not self.supported_features & SUPPORT_ACTIVITY:
            return None

        return {
            ATTR_ACTIVITY_LIST: self.activity_list,
            ATTR_CURRENT_ACTIVITY: self.current_activity,
        }

    def send_command(self, command: Iterable[str], **kwargs: Any) -> None:
        """Send commands to a device."""
        raise NotImplementedError()

    async def async_send_command(self, command: Iterable[str], **kwargs: Any) -> None:
        """Send commands to a device."""
        await self.hass.async_add_executor_job(
            ft.partial(self.send_command, command, **kwargs)
        )

    def learn_command(self, **kwargs: Any) -> None:
        """Learn a command from a device."""
        raise NotImplementedError()

    async def async_learn_command(self, **kwargs: Any) -> None:
        """Learn a command from a device."""
        await self.hass.async_add_executor_job(ft.partial(self.learn_command, **kwargs))

    def delete_command(self, **kwargs: Any) -> None:
        """Delete commands from the database."""
        raise NotImplementedError()

    async def async_delete_command(self, **kwargs: Any) -> None:
        """Delete commands from the database."""
        await self.hass.async_add_executor_job(
            ft.partial(self.delete_command, **kwargs)
        )


class RemoteDevice(RemoteEntity):
    """Representation of a remote (for backwards compatibility)."""

    def __init_subclass__(cls, **kwargs):
        """Print deprecation warning."""
        super().__init_subclass__(**kwargs)
        _LOGGER.warning(
            "RemoteDevice is deprecated, modify %s to extend RemoteEntity",
            cls.__name__,
        )