from dht import DHT22
from machine import ADC, Pin


class TemperatureHumiditySensor:
    sensor_pin_int = -1

    sensor = None

    most_recent_values = []

    def __init__(self, settings):
        print("Initialize dht22 sensor. Sensor pin is: " + str(settings['pin_int']))
        print(settings)
        self.sensor_pin_int = settings['pin_int']
        self.sensor = DHT22(Pin(self.sensor_pin_int, Pin.IN, Pin.PULL_UP))

    def read(self):
        try:
            self.sensor.measure()
            self.most_recent_values = [
                {
                    'type': 'temperature',
                    'value': self.sensor.temperature(),
                    'unit': 'C'
                },
                {
                    'type': 'humidity',
                    'value': self.sensor.humidity(),
                    'unit': '%'
                }
            ]
        except OSError:
            print('DHT22 Error reading temperature/humidity. Check wires')
            print()