import logging

from pyhon import HonConnection

from homeassistant.components.sensor import (
    SensorEntity,
    SensorDeviceClass,
    SensorStateClass,
    SensorEntityDescription,
)
from homeassistant.config_entries import ConfigEntry
from homeassistant.const import UnitOfEnergy, UnitOfVolume, UnitOfMass, UnitOfPower
from homeassistant.core import callback
from homeassistant.helpers.entity import EntityCategory
from homeassistant.helpers.typing import StateType

from .const import DOMAIN
from .hon import HonCoordinator, HonEntity

_LOGGER = logging.getLogger(__name__)

SENSORS: dict[str, tuple[SensorEntityDescription, ...]] = {
    "WM": (
        SensorEntityDescription(
            key="totalElectricityUsed",
            name="Total Power",
            device_class=SensorDeviceClass.ENERGY,
            state_class=SensorStateClass.TOTAL_INCREASING,
            native_unit_of_measurement=UnitOfEnergy.KILO_WATT_HOUR
        ),
        SensorEntityDescription(
            key="totalWaterUsed",
            name="Total Water",
            device_class=SensorDeviceClass.WATER,
            state_class=SensorStateClass.TOTAL_INCREASING,
            native_unit_of_measurement=UnitOfVolume.LITERS
        ),
        SensorEntityDescription(
            key="totalWashCycle",
            name="Total Wash Cycle",
            state_class=SensorStateClass.TOTAL_INCREASING,
            icon="mdi:counter"
        ),
        SensorEntityDescription(
            key="currentElectricityUsed",
            name="Current Electricity Used",
            state_class=SensorStateClass.MEASUREMENT,
            device_class=SensorDeviceClass.POWER,
            native_unit_of_measurement=UnitOfPower.KILO_WATT,
            icon="mdi:lightning-bolt"
        ),
        SensorEntityDescription(
            key="currentWaterUsed",
            name="Current Water Used",
            state_class=SensorStateClass.MEASUREMENT,
            icon="mdi:water"
        ),
        SensorEntityDescription(
            key="startProgram.weight",
            name="Weight",
            state_class=SensorStateClass.MEASUREMENT,
            entity_category=EntityCategory.CONFIG,
            native_unit_of_measurement=UnitOfMass.KILOGRAMS,
            icon="mdi:weight-kilogram"
        ),
        SensorEntityDescription(
            key="machMode",
            name="Mode",
            translation_key="mode"
        ),
        SensorEntityDescription(
            key="errors",
            name="Last Error",
            translation_key="errors"
        ),
    )
}


async def async_setup_entry(hass, entry: ConfigEntry, async_add_entities) -> None:
    hon: HonConnection = hass.data[DOMAIN][entry.unique_id]
    coordinators = hass.data[DOMAIN]["coordinators"]
    appliances = []
    for device in hon.devices:
        if device.mac_address in coordinators:
            coordinator = hass.data[DOMAIN]["coordinators"][device.mac_address]
        else:
            coordinator = HonCoordinator(hass, device)
            hass.data[DOMAIN]["coordinators"][device.mac_address] = coordinator
        await coordinator.async_config_entry_first_refresh()

        if descriptions := SENSORS.get(device.appliance_type_name):
            for description in descriptions:
                appliances.extend([
                    HonSensorEntity(hass, coordinator, entry, device, description)]
                )

    async_add_entities(appliances)


class HonSensorEntity(HonEntity, SensorEntity):
    def __init__(self, hass, coordinator, entry, device, description) -> None:
        super().__init__(hass, entry, coordinator, device)

        self._coordinator = coordinator

        self.entity_description = description
        self._attr_unique_id = f"{super().unique_id}{description.key}"

    @property
    def native_value(self) -> StateType:
        return self._device.data.get(self.entity_description.key, "")

    @callback
    def _handle_coordinator_update(self):
        self._attr_native_value = self._device.data.get(self.entity_description.key, "")
        self.async_write_ha_state()