from homeassistant.components.sensor import SensorEntity
from homeassistant.const import Platform
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_platform import AddEntitiesCallback

from .const import DOMAIN
from .core.logger import MideaLogger
from .midea_entity import MideaEntity
from . import load_device_config


async def async_setup_entry(
    hass: HomeAssistant,
    config_entry: ConfigEntry,
    async_add_entities: AddEntitiesCallback,
) -> None:
    """Set up sensor entities for Midea devices."""
    account_bucket = hass.data.get(DOMAIN, {}).get("accounts", {}).get(config_entry.entry_id)
    if not account_bucket:
        async_add_entities([])
        return
    device_list = account_bucket.get("device_list", {})
    coordinator_map = account_bucket.get("coordinator_map", {})

    devs = []
    for device_id, info in device_list.items():
        device_type = info.get("type")
        sn8 = info.get("sn8")
        config = await load_device_config(hass, device_type, sn8) or {}
        entities_cfg = (config.get("entities") or {}).get(Platform.SENSOR, {})
        manufacturer = config.get("manufacturer")
        rationale = config.get("rationale")
        coordinator = coordinator_map.get(device_id)
        device = coordinator.device if coordinator else None
        for entity_key, ecfg in entities_cfg.items():
            devs.append(MideaSensorEntity(
                coordinator, device, manufacturer, rationale, entity_key, ecfg
            ))
    async_add_entities(devs)


class MideaSensorEntity(MideaEntity, SensorEntity):
    """Midea sensor entity."""

    def __init__(self, coordinator, device, manufacturer, rationale, entity_key, config):
        super().__init__(
            coordinator,
            device.device_id,
            device.device_name,
            f"T0x{device.device_type:02X}",
            device.sn,
            device.sn8,
            device.model,
            entity_key,
            device=device,
            manufacturer=manufacturer,
            rationale=rationale,
            config=config,
        )
        self._device = device
        self._manufacturer = manufacturer
        self._rationale = rationale
        self._config = config

    @property
    def native_value(self):
        """Return the native value of the sensor."""
        value = self.device_attributes.get(self._entity_key)
        
        # Handle invalid string values
        if isinstance(value, str) and value.lower() in ['invalid', 'none', 'null', '']:
            return None
            
        # Try to convert to number if it's a string that looks like a number
        if isinstance(value, str):
            try:
                # Try integer first
                if '.' not in value:
                    return int(value)
                # Then float
                return float(value)
            except (ValueError, TypeError):
                # If conversion fails, return None for numeric sensors
                # or return the original string for enum sensors
                device_class = self._config.get("device_class")
                if device_class and "enum" not in device_class.lower():
                    return None
                return value
                
        return value