"""Provides device automations for Arcam FMJ Receiver control."""
from typing import List

import voluptuous as vol

from homeassistant.components.automation import AutomationActionType
from homeassistant.components.device_automation import TRIGGER_BASE_SCHEMA
from homeassistant.const import (
    ATTR_ENTITY_ID,
    CONF_DEVICE_ID,
    CONF_DOMAIN,
    CONF_ENTITY_ID,
    CONF_PLATFORM,
    CONF_TYPE,
)
from homeassistant.core import CALLBACK_TYPE, Event, HomeAssistant, callback
from homeassistant.helpers import config_validation as cv, entity_registry
from homeassistant.helpers.typing import ConfigType

from .const import DOMAIN, EVENT_TURN_ON

TRIGGER_TYPES = {"turn_on"}
TRIGGER_SCHEMA = TRIGGER_BASE_SCHEMA.extend(
    {
        vol.Required(CONF_ENTITY_ID): cv.entity_id,
        vol.Required(CONF_TYPE): vol.In(TRIGGER_TYPES),
    }
)


async def async_get_triggers(hass: HomeAssistant, device_id: str) -> List[dict]:
    """List device triggers for Arcam FMJ Receiver control devices."""
    registry = await entity_registry.async_get_registry(hass)
    triggers = []

    # Get all the integrations entities for this device
    for entry in entity_registry.async_entries_for_device(registry, device_id):
        if entry.domain == "media_player":
            triggers.append(
                {
                    CONF_PLATFORM: "device",
                    CONF_DEVICE_ID: device_id,
                    CONF_DOMAIN: DOMAIN,
                    CONF_ENTITY_ID: entry.entity_id,
                    CONF_TYPE: "turn_on",
                }
            )

    return triggers


async def async_attach_trigger(
    hass: HomeAssistant,
    config: ConfigType,
    action: AutomationActionType,
    automation_info: dict,
) -> CALLBACK_TYPE:
    """Attach a trigger."""
    config = TRIGGER_SCHEMA(config)

    if config[CONF_TYPE] == "turn_on":
        entity_id = config[CONF_ENTITY_ID]

        @callback
        def _handle_event(event: Event):
            if event.data[ATTR_ENTITY_ID] == entity_id:
                hass.async_run_job(
                    action,
                    {"trigger": {**config, "description": f"{DOMAIN} - {entity_id}"}},
                    event.context,
                )

        return hass.bus.async_listen(EVENT_TURN_ON, _handle_event)

    return lambda: None
