"""Support for Toon sensors."""
import logging

from homeassistant.config_entries import ConfigEntry
from homeassistant.helpers.typing import HomeAssistantType
from homeassistant.const import ENERGY_KILO_WATT_HOUR, POWER_WATT

from . import (
    ToonData,
    ToonEntity,
    ToonElectricityMeterDeviceEntity,
    ToonGasMeterDeviceEntity,
    ToonSolarDeviceEntity,
    ToonBoilerDeviceEntity,
)
from .const import (
    CURRENCY_EUR,
    DATA_TOON,
    DOMAIN,
    VOLUME_CM3,
    VOLUME_M3,
    RATIO_PERCENT,
)

_LOGGER = logging.getLogger(__name__)


async def async_setup_entry(
        hass: HomeAssistantType, entry: ConfigEntry, async_add_entities
) -> None:
    """Set up Toon sensors based on a config entry."""
    toon = hass.data[DATA_TOON][entry.entry_id]

    sensors = [
        ToonElectricityMeterDeviceSensor(
            toon,
            'power',
            'value',
            "Current Power Usage",
            'mdi:power-plug',
            POWER_WATT,
        ),
        ToonElectricityMeterDeviceSensor(
            toon,
            'power',
            'average',
            "Average Power Usage",
            'mdi:power-plug',
            POWER_WATT,
        ),
        ToonElectricityMeterDeviceSensor(
            toon,
            'power',
            'daily_value',
            "Power Usage Today",
            'mdi:power-plug',
            ENERGY_KILO_WATT_HOUR,
        ),
        ToonElectricityMeterDeviceSensor(
            toon,
            'power',
            'daily_cost',
            "Power Cost Today",
            'mdi:power-plug',
            CURRENCY_EUR,
        ),
        ToonElectricityMeterDeviceSensor(
            toon,
            'power',
            'average_daily',
            "Average Daily Power Usage",
            'mdi:power-plug',
            ENERGY_KILO_WATT_HOUR,
        ),
        ToonElectricityMeterDeviceSensor(
            toon,
            'power',
            'meter_reading',
            "Power Meter Feed IN Tariff 1",
            'mdi:power-plug',
            ENERGY_KILO_WATT_HOUR,
        ),
        ToonElectricityMeterDeviceSensor(
            toon,
            'power',
            'meter_reading_low',
            "Power Meter Feed IN Tariff 2",
            'mdi:power-plug',
            ENERGY_KILO_WATT_HOUR,
        ),
    ]

    if toon.gas:
        sensors.extend(
            [
                ToonGasMeterDeviceSensor(
                    toon,
                    'gas',
                    'value',
                    "Current Gas Usage",
                    'mdi:gas-cylinder',
                    VOLUME_CM3,
                ),
                ToonGasMeterDeviceSensor(
                    toon,
                    'gas',
                    'average',
                    "Average Gas Usage",
                    'mdi:gas-cylinder',
                    VOLUME_CM3,
                ),
                ToonGasMeterDeviceSensor(
                    toon,
                    'gas',
                    'daily_usage',
                    "Gas Usage Today",
                    'mdi:gas-cylinder',
                    VOLUME_M3,
                ),
                ToonGasMeterDeviceSensor(
                    toon,
                    'gas',
                    'average_daily',
                    "Average Daily Gas Usage",
                    'mdi:gas-cylinder',
                    VOLUME_M3,
                ),
                ToonGasMeterDeviceSensor(
                    toon,
                    'gas',
                    'meter_reading',
                    "Gas Meter",
                    'mdi:gas-cylinder',
                    VOLUME_M3,
                ),
                ToonGasMeterDeviceSensor(
                    toon,
                    'gas',
                    'daily_cost',
                    "Gas Cost Today",
                    'mdi:gas-cylinder',
                    CURRENCY_EUR,
                ),
            ]
        )

    if toon.solar:
        sensors.extend(
            [
                ToonSolarDeviceSensor(
                    toon,
                    'solar',
                    'value',
                    "Current Solar Production",
                    'mdi:solar-power',
                    POWER_WATT,
                ),
                ToonSolarDeviceSensor(
                    toon,
                    'solar',
                    'maximum',
                    "Max Solar Production",
                    'mdi:solar-power',
                    POWER_WATT,
                ),
                ToonSolarDeviceSensor(
                    toon,
                    'solar',
                    'produced',
                    "Solar Production to Grid",
                    'mdi:solar-power',
                    POWER_WATT,
                ),
                ToonSolarDeviceSensor(
                    toon,
                    'solar',
                    'average_produced',
                    "Average Solar Production to Grid",
                    'mdi:solar-power',
                    POWER_WATT,
                ),
                ToonElectricityMeterDeviceSensor(
                    toon,
                    'solar',
                    'meter_reading_produced',
                    "Power Meter Feed OUT Tariff 1",
                    'mdi:solar-power',
                    ENERGY_KILO_WATT_HOUR,
                ),
                ToonElectricityMeterDeviceSensor(
                    toon,
                    'solar',
                    'meter_reading_low_produced',
                    "Power Meter Feed OUT Tariff 2",
                    'mdi:solar-power',
                    ENERGY_KILO_WATT_HOUR,
                ),
            ]
        )

    if toon.thermostat_info.have_ot_boiler:
        sensors.extend(
            [
                ToonBoilerDeviceSensor(
                    toon,
                    'thermostat_info',
                    'current_modulation_level',
                    "Boiler Modulation Level",
                    'mdi:percent',
                    RATIO_PERCENT,
                )
            ]
        )

    async_add_entities(sensors, True)


class ToonSensor(ToonEntity):
    """Defines a Toon sensor."""

    def __init__(
            self,
            toon: ToonData,
            section: str,
            measurement: str,
            name: str,
            icon: str,
            unit_of_measurement: str,
    ) -> None:
        """Initialize the Toon sensor."""
        self._state = None
        self._unit_of_measurement = unit_of_measurement
        self.section = section
        self.measurement = measurement

        super().__init__(toon, name, icon)

    @property
    def unique_id(self) -> str:
        """Return the unique ID for this sensor."""
        return '_'.join(
            [
                DOMAIN,
                self.toon.agreement.id,
                'sensor',
                self.section,
                self.measurement,
            ]
        )

    @property
    def state(self):
        """Return the state of the sensor."""
        return self._state

    @property
    def unit_of_measurement(self) -> str:
        """Return the unit this state is expressed in."""
        return self._unit_of_measurement

    def update(self) -> None:
        """Get the latest data from the sensor."""
        section = getattr(self.toon, self.section)
        value = None

        if not section:
            return

        if self.section == 'power' and self.measurement == 'daily_value':
            value = round(
                (float(section.daily_usage) + float(section.daily_usage_low))
                / 1000.0,
                2,
            )

        if value is None:
            value = getattr(section, self.measurement)

        if self.section == 'power' and self.measurement in [
                'meter_reading',
                'meter_reading_low',
                'average_daily',
        ]:
            value = round(float(value) / 1000.0, 2)

        if self.section == 'solar' and self.measurement in [
                'meter_reading_produced',
                'meter_reading_low_produced',
        ]:
            value = float(value) / 1000.0

        if self.section == 'gas' and self.measurement in [
                'average_daily',
                'daily_usage',
                'meter_reading',
        ]:
            value = round(float(value) / 1000.0, 2)

        self._state = max(0, value)


class ToonElectricityMeterDeviceSensor(
        ToonSensor, ToonElectricityMeterDeviceEntity
):
    """Defines a Electricity Meter sensor."""

    pass


class ToonGasMeterDeviceSensor(ToonSensor, ToonGasMeterDeviceEntity):
    """Defines a Gas Meter sensor."""

    pass


class ToonSolarDeviceSensor(ToonSensor, ToonSolarDeviceEntity):
    """Defines a Solar sensor."""

    pass


class ToonBoilerDeviceSensor(ToonSensor, ToonBoilerDeviceEntity):
    """Defines a Boiler sensor."""

    pass