import grovepi
import math
import time
from sensors.lock import grove_lock

# Connect the Grove Temperature & Humidity Sensor Pro to digital port D3
# This example uses the blue colored sensor.
# SIG,NC,VCC,GND
sensor = 3  # The Sensor goes on digital port 3.

# temp_humidity_sensor_type
# Grove Base Kit comes with the blue sensor.
blue = 0    # The Blue colored sensor.
white = 1   # The White colored sensor.

def get_temperature_and_humidity():
    with grove_lock:
        [temp,humidity] = grovepi.dht(sensor,blue)  
        if math.isnan(temp) == False and math.isnan(humidity) == False:
            return temp, humidity
        else:
            print("Error reading from DHT sensor")
            return None, None

def get_temperature_and_humidity_with_retry(max_retries=3):
    for _ in range(max_retries):  # Try up to max_retries times
        temp, humidity = get_temperature_and_humidity()
        if temp is not None and humidity is not None:
            return temp, humidity
        time.sleep(1)  # Wait a bit before retrying
    return None, None