"""Support for Oncue sensors."""
from __future__ import annotations

from aiooncue import OncueDevice, OncueSensor

from homeassistant.components.sensor import (
    SensorDeviceClass,
    SensorEntity,
    SensorEntityDescription,
    SensorStateClass,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import (
    PERCENTAGE,
    UnitOfElectricCurrent,
    UnitOfElectricPotential,
    UnitOfEnergy,
    UnitOfFrequency,
    UnitOfPower,
    UnitOfPressure,
    UnitOfTemperature,
)
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity import EntityCategory
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.update_coordinator import DataUpdateCoordinator

from .const import DOMAIN
from .entity import OncueEntity

SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
    SensorEntityDescription(
        key="LatestFirmware",
        icon="mdi:update",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="EngineSpeed",
        icon="mdi:speedometer",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="EngineTargetSpeed",
        icon="mdi:speedometer",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="EngineOilPressure",
        native_unit_of_measurement=UnitOfPressure.PSI,
        device_class=SensorDeviceClass.PRESSURE,
        state_class=SensorStateClass.MEASUREMENT,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="EngineCoolantTemperature",
        device_class=SensorDeviceClass.TEMPERATURE,
        state_class=SensorStateClass.MEASUREMENT,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="BatteryVoltage",
        native_unit_of_measurement=UnitOfElectricPotential.VOLT,
        device_class=SensorDeviceClass.VOLTAGE,
        state_class=SensorStateClass.MEASUREMENT,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="LubeOilTemperature",
        device_class=SensorDeviceClass.TEMPERATURE,
        state_class=SensorStateClass.MEASUREMENT,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="GensetControllerTemperature",
        device_class=SensorDeviceClass.TEMPERATURE,
        state_class=SensorStateClass.MEASUREMENT,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="EngineCompartmentTemperature",
        device_class=SensorDeviceClass.TEMPERATURE,
        state_class=SensorStateClass.MEASUREMENT,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="GeneratorTrueTotalPower",
        native_unit_of_measurement=UnitOfPower.WATT,
        device_class=SensorDeviceClass.POWER,
        state_class=SensorStateClass.MEASUREMENT,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="GeneratorTruePercentOfRatedPower",
        native_unit_of_measurement=PERCENTAGE,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="GeneratorVoltageAverageLineToLine",
        native_unit_of_measurement=UnitOfElectricPotential.VOLT,
        device_class=SensorDeviceClass.VOLTAGE,
        state_class=SensorStateClass.MEASUREMENT,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="GeneratorFrequency",
        native_unit_of_measurement=UnitOfFrequency.HERTZ,
        device_class=SensorDeviceClass.FREQUENCY,
        state_class=SensorStateClass.MEASUREMENT,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(key="GensetState", icon="mdi:home-lightning-bolt"),
    SensorEntityDescription(
        key="GensetControllerTotalOperationTime",
        icon="mdi:hours-24",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="EngineTotalRunTime",
        icon="mdi:hours-24",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="EngineTotalRunTimeLoaded",
        icon="mdi:hours-24",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(key="AtsContactorPosition", icon="mdi:electric-switch"),
    SensorEntityDescription(
        key="IPAddress",
        icon="mdi:ip-network",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="ConnectedServerIPAddress",
        icon="mdi:server-network",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="Source1VoltageAverageLineToLine",
        native_unit_of_measurement=UnitOfElectricPotential.VOLT,
        device_class=SensorDeviceClass.VOLTAGE,
        state_class=SensorStateClass.MEASUREMENT,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="Source2VoltageAverageLineToLine",
        native_unit_of_measurement=UnitOfElectricPotential.VOLT,
        device_class=SensorDeviceClass.VOLTAGE,
        state_class=SensorStateClass.MEASUREMENT,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="GensetTotalEnergy",
        native_unit_of_measurement=UnitOfEnergy.KILO_WATT_HOUR,
        device_class=SensorDeviceClass.ENERGY,
        state_class=SensorStateClass.TOTAL_INCREASING,
    ),
    SensorEntityDescription(
        key="EngineTotalNumberOfStarts",
        icon="mdi:engine",
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
    SensorEntityDescription(
        key="GeneratorCurrentAverage",
        native_unit_of_measurement=UnitOfElectricCurrent.AMPERE,
        device_class=SensorDeviceClass.CURRENT,
        state_class=SensorStateClass.MEASUREMENT,
        entity_category=EntityCategory.DIAGNOSTIC,
    ),
)

SENSOR_MAP = {description.key: description for description in SENSOR_TYPES}

UNIT_MAPPINGS = {
    "C": UnitOfTemperature.CELSIUS,
    "F": UnitOfTemperature.FAHRENHEIT,
}


async def async_setup_entry(
    hass: HomeAssistant,
    config_entry: ConfigEntry,
    async_add_entities: AddEntitiesCallback,
) -> None:
    """Set up sensors."""
    coordinator: DataUpdateCoordinator = hass.data[DOMAIN][config_entry.entry_id]
    entities: list[OncueSensorEntity] = []
    devices: dict[str, OncueDevice] = coordinator.data
    for device_id, device in devices.items():
        entities.extend(
            OncueSensorEntity(coordinator, device_id, device, sensor, SENSOR_MAP[key])
            for key, sensor in device.sensors.items()
            if key in SENSOR_MAP
        )

    async_add_entities(entities)


class OncueSensorEntity(OncueEntity, SensorEntity):
    """Representation of an Oncue sensor."""

    def __init__(
        self,
        coordinator: DataUpdateCoordinator,
        device_id: str,
        device: OncueDevice,
        sensor: OncueSensor,
        description: SensorEntityDescription,
    ) -> None:
        """Initialize the sensor."""
        super().__init__(coordinator, device_id, device, sensor, description)
        if not description.native_unit_of_measurement and sensor.unit is not None:
            self._attr_native_unit_of_measurement = UNIT_MAPPINGS.get(
                sensor.unit, sensor.unit
            )

    @property
    def native_value(self) -> str:
        """Return the sensors state."""
        return self._oncue_value