"""
Temperature & Humidity Sensor Accessory Implementation for HomeKit

Implements combined temperature and humidity sensor:
- CurrentTemperature (read-only)
- CurrentRelativeHumidity (read-only)
"""

from pyhap.accessory import Accessory
from pyhap.const import CATEGORY_SENSOR


class TempHumidityAccessory(Accessory):
    """Combined temperature and humidity sensor."""
    
    category = CATEGORY_SENSOR
    
    def __init__(self, driver, device, api_client, display_name=None, *args, **kwargs):
        """
        Initialize the temp/humidity sensor accessory.
        
        Args:
            driver: HAP driver instance
            device: Device object from DeviceRegistry
            api_client: ApiClient for sending commands
            display_name: Optional display name (defaults to device.friendly_name)
        """
        name = display_name or device.friendly_name or device.name
        super().__init__(driver, name, *args, **kwargs)
        self.device = device
        self.api_client = api_client
        
        # Add TemperatureSensor service
        self.temp_service = self.add_preload_service('TemperatureSensor')
        self.current_temp_char = self.temp_service.get_characteristic('CurrentTemperature')
        
        # Add HumiditySensor service
        self.humidity_service = self.add_preload_service('HumiditySensor')
        self.current_humidity_char = self.humidity_service.get_characteristic('CurrentRelativeHumidity')
    
    def update_state(self, state_payload):
        """Update state from API event."""
        if "temperature" in state_payload:
            self.current_temp_char.set_value(float(state_payload["temperature"]))
        if "humidity" in state_payload:
            self.current_humidity_char.set_value(float(state_payload["humidity"]))