"""Support for a ScreenLogic Sensor."""
import logging

from screenlogicpy.const import DATA as SL_DATA, DEVICE_TYPE

from homeassistant.components.sensor import (
    DEVICE_CLASS_POWER,
    DEVICE_CLASS_TEMPERATURE,
    SensorEntity,
)

from . import ScreenlogicEntity
from .const import DOMAIN

_LOGGER = logging.getLogger(__name__)

PUMP_SENSORS = ("currentWatts", "currentRPM", "currentGPM")

SL_DEVICE_TYPE_TO_HA_DEVICE_CLASS = {
    DEVICE_TYPE.TEMPERATURE: DEVICE_CLASS_TEMPERATURE,
    DEVICE_TYPE.ENERGY: DEVICE_CLASS_POWER,
}


async def async_setup_entry(hass, config_entry, async_add_entities):
    """Set up entry."""
    entities = []
    coordinator = hass.data[DOMAIN][config_entry.entry_id]["coordinator"]

    # Generic sensors
    for sensor in coordinator.data[SL_DATA.KEY_SENSORS]:
        if sensor == "chem_alarm":
            continue
        if coordinator.data[SL_DATA.KEY_SENSORS][sensor]["value"] != 0:
            entities.append(ScreenLogicSensor(coordinator, sensor))

    # Pump sensors
    for pump in coordinator.data[SL_DATA.KEY_PUMPS]:
        if (
            coordinator.data[SL_DATA.KEY_PUMPS][pump]["data"] != 0
            and "currentWatts" in coordinator.data[SL_DATA.KEY_PUMPS][pump]
        ):
            for pump_key in PUMP_SENSORS:
                entities.append(ScreenLogicPumpSensor(coordinator, pump, pump_key))

    async_add_entities(entities)


class ScreenLogicSensor(ScreenlogicEntity, SensorEntity):
    """Representation of the basic ScreenLogic sensor entity."""

    @property
    def name(self):
        """Name of the sensor."""
        return f"{self.gateway_name} {self.sensor['name']}"

    @property
    def unit_of_measurement(self):
        """Return the unit of measurement."""
        return self.sensor.get("unit")

    @property
    def device_class(self):
        """Device class of the sensor."""
        device_type = self.sensor.get("device_type")
        return SL_DEVICE_TYPE_TO_HA_DEVICE_CLASS.get(device_type)

    @property
    def state(self):
        """State of the sensor."""
        value = self.sensor["value"]
        return (value - 1) if "supply" in self._data_key else value

    @property
    def sensor(self):
        """Shortcut to access the sensor data."""
        return self.coordinator.data[SL_DATA.KEY_SENSORS][self._data_key]


class ScreenLogicPumpSensor(ScreenLogicSensor):
    """Representation of a ScreenLogic pump sensor entity."""

    def __init__(self, coordinator, pump, key):
        """Initialize of the pump sensor."""
        super().__init__(coordinator, f"{key}_{pump}")
        self._pump_id = pump
        self._key = key

    @property
    def sensor(self):
        """Shortcut to access the pump sensor data."""
        return self.coordinator.data[SL_DATA.KEY_PUMPS][self._pump_id][self._key]