"""Support for interacting with Smappee Comport Plugs, Switches and Output Modules."""
from homeassistant.components.switch import SwitchEntity

from .const import DOMAIN

SWITCH_PREFIX = "Switch"
ICON = "mdi:toggle-switch"


async def async_setup_entry(hass, config_entry, async_add_entities):
    """Set up the Smappee Comfort Plugs."""
    smappee_base = hass.data[DOMAIN][config_entry.entry_id]

    entities = []
    for service_location in smappee_base.smappee.service_locations.values():
        for actuator_id, actuator in service_location.actuators.items():
            if actuator.type in ["SWITCH", "COMFORT_PLUG"]:
                entities.append(
                    SmappeeActuator(
                        smappee_base,
                        service_location,
                        actuator.name,
                        actuator_id,
                        actuator.type,
                        actuator.serialnumber,
                    )
                )
            elif actuator.type == "INFINITY_OUTPUT_MODULE":
                for option in actuator.state_options:
                    entities.append(
                        SmappeeActuator(
                            smappee_base,
                            service_location,
                            actuator.name,
                            actuator_id,
                            actuator.type,
                            actuator.serialnumber,
                            actuator_state_option=option,
                        )
                    )

    async_add_entities(entities, True)


class SmappeeActuator(SwitchEntity):
    """Representation of a Smappee Comport Plug."""

    def __init__(
        self,
        smappee_base,
        service_location,
        name,
        actuator_id,
        actuator_type,
        actuator_serialnumber,
        actuator_state_option=None,
    ):
        """Initialize a new Smappee Comfort Plug."""
        self._smappee_base = smappee_base
        self._service_location = service_location
        self._actuator_name = name
        self._actuator_id = actuator_id
        self._actuator_type = actuator_type
        self._actuator_serialnumber = actuator_serialnumber
        self._actuator_state_option = actuator_state_option
        self._state = self._service_location.actuators.get(actuator_id).state
        self._connection_state = self._service_location.actuators.get(
            actuator_id
        ).connection_state

    @property
    def name(self):
        """Return the name of the switch."""
        if self._actuator_type == "INFINITY_OUTPUT_MODULE":
            return (
                f"{self._service_location.service_location_name} - "
                f"Output module - {self._actuator_name} - {self._actuator_state_option}"
            )

        # Switch or comfort plug
        return (
            f"{self._service_location.service_location_name} - "
            f"{self._actuator_type.title()} - {self._actuator_name}"
        )

    @property
    def is_on(self):
        """Return true if switch is on."""
        if self._actuator_type == "INFINITY_OUTPUT_MODULE":
            return (
                self._service_location.actuators.get(self._actuator_id).state
                == self._actuator_state_option
            )

        # Switch or comfort plug
        return self._state == "ON_ON"

    @property
    def icon(self):
        """Icon to use in the frontend."""
        return ICON

    def turn_on(self, **kwargs):
        """Turn on Comport Plug."""
        if self._actuator_type in ["SWITCH", "COMFORT_PLUG"]:
            self._service_location.set_actuator_state(self._actuator_id, state="ON_ON")
        elif self._actuator_type == "INFINITY_OUTPUT_MODULE":
            self._service_location.set_actuator_state(
                self._actuator_id, state=self._actuator_state_option
            )

    def turn_off(self, **kwargs):
        """Turn off Comport Plug."""
        if self._actuator_type in ["SWITCH", "COMFORT_PLUG"]:
            self._service_location.set_actuator_state(
                self._actuator_id, state="OFF_OFF"
            )
        elif self._actuator_type == "INFINITY_OUTPUT_MODULE":
            self._service_location.set_actuator_state(
                self._actuator_id, state="PLACEHOLDER", api=False
            )

    @property
    def available(self):
        """Return True if entity is available. Unavailable for COMFORT_PLUGS."""
        return (
            self._connection_state == "CONNECTED"
            or self._actuator_type == "COMFORT_PLUG"
        )

    @property
    def today_energy_kwh(self):
        """Return the today total energy usage in kWh."""
        if self._actuator_type == "SWITCH":
            cons = self._service_location.actuators.get(
                self._actuator_id
            ).consumption_today
            if cons is not None:
                return round(cons / 1000.0, 2)
        return None

    @property
    def unique_id(
        self,
    ):
        """Return the unique ID for this switch."""
        if self._actuator_type == "INFINITY_OUTPUT_MODULE":
            return (
                f"{self._service_location.device_serial_number}-"
                f"{self._service_location.service_location_id}-actuator-"
                f"{self._actuator_id}-{self._actuator_state_option}"
            )

        # Switch or comfort plug
        return (
            f"{self._service_location.device_serial_number}-"
            f"{self._service_location.service_location_id}-actuator-"
            f"{self._actuator_id}"
        )

    @property
    def device_info(self):
        """Return the device info for this switch."""
        return {
            "identifiers": {(DOMAIN, self._service_location.device_serial_number)},
            "name": self._service_location.service_location_name,
            "manufacturer": "Smappee",
            "model": self._service_location.device_model,
            "sw_version": self._service_location.firmware_version,
        }

    async def async_update(self):
        """Get the latest data from Smappee and update the state."""
        await self._smappee_base.async_update()

        new_state = self._service_location.actuators.get(self._actuator_id).state
        if new_state != self._state:
            self._state = new_state
            self.async_write_ha_state()

        self._connection_state = self._service_location.actuators.get(
            self._actuator_id
        ).connection_state