"""AdGuard Control Hub sensor platform."""
from __future__ import annotations

import logging
from typing import Any

from homeassistant.components.sensor import SensorEntity, SensorStateClass
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity import DeviceInfo
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.update_coordinator import CoordinatorEntity

from .const import DOMAIN, SENSORS
from .coordinator import AdGuardDataUpdateCoordinator

_LOGGER = logging.getLogger(__name__)


async def async_setup_entry(
    hass: HomeAssistant,
    entry: ConfigEntry,
    async_add_entities: AddEntitiesCallback,
) -> None:
    """Set up AdGuard Control Hub sensor based on a config entry."""
    coordinator = hass.data[DOMAIN][entry.entry_id]

    entities = []
    for sensor_type, sensor_info in SENSORS.items():
        entities.append(
            AdGuardSensor(
                coordinator,
                entry,
                sensor_type,
                sensor_info,
            )
        )

    async_add_entities(entities)


class AdGuardSensor(CoordinatorEntity[AdGuardDataUpdateCoordinator], SensorEntity):
    """Representation of an AdGuard Control Hub sensor."""

    def __init__(
        self,
        coordinator: AdGuardDataUpdateCoordinator,
        entry: ConfigEntry,
        sensor_type: str,
        sensor_info: dict[str, Any],
    ) -> None:
        """Initialize the sensor."""
        super().__init__(coordinator)
        self._sensor_type = sensor_type
        self._sensor_info = sensor_info
        self._entry = entry

        self._attr_name = sensor_info["name"]
        self._attr_icon = sensor_info["icon"]
        self._attr_native_unit_of_measurement = sensor_info.get("unit")
        self._attr_unique_id = f"{entry.entry_id}_{sensor_type}"

        # Set state class for numeric sensors
        if sensor_info.get("unit") in ["queries", "rules", "ms"]:
            self._attr_state_class = SensorStateClass.MEASUREMENT

    @property
    def device_info(self) -> DeviceInfo:
        """Return device information about this AdGuard Home instance."""
        return DeviceInfo(
            identifiers={(DOMAIN, self._entry.entry_id)},
            name="AdGuard Control Hub",
            manufacturer="AdGuard",
            model="AdGuard Home",
            sw_version=self.coordinator.data.get("status", {}).get("version"),
            configuration_url=f"http://{self._entry.data['host']}:{self._entry.data['port']}",
        )

    @property
    def native_value(self) -> str | int | float | None:
        """Return the native value of the sensor."""
        if self.coordinator.data is None:
            return None

        stats_data = self.coordinator.data.get("stats", {})
        api_key = self._sensor_info["api_key"]

        value = stats_data.get(api_key)

        # Handle special cases
        if self._sensor_type == "blocked_percentage":
            return value
        elif self._sensor_type == "avg_processing_time":
            # Convert to milliseconds if needed
            if value is not None:
                return round(value, 2)

        return value