from machine import Pin
import time
import network
import dht
import ujson
from umqtt.simple import MQTTClient

print("Hello Raka")

MQTT_CLIENT_ID = "mqttx_bdbdf948"
MQTT_BROKER    = "broker.emqx.io"
MQTT_USER      = ""
MQTT_PASSWORD  = ""
MQTT_TOPIC_1   = "Barudak_Depok_Baik_Hati_dan_Rajin_Menabung/raka/data_sensor"
MQTT_TOPIC_2   = "Barudak_Depok_Baik_Hati_dan_Rajin_Menabung/raka/aktuasi_led"

led = Pin(15, Pin.OUT)
sensor = dht.DHT22(Pin(19))

print("Connecting to Wifi", end="")
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)
sta_if.connect('Wokwi-GUEST', '')
while not sta_if.isconnected():
  print(".", end="")
  time.sleep(0.3)
print('Connected!')

print("Connecting to MQTT Server")
client = MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER, user=MQTT_USER, password=MQTT_PASSWORD)
client.connect()
print("Connected!")

prev_weather = ""
while True:
  print("Mengukur kondisi cuaca... ")
  sensor.measure()
  
  led.on()
  time.sleep(0.5)

  message_2 = ujson.dumps({
    "led_status": led.value()
  })

  client.publish(MQTT_TOPIC_2, message_2)

  print(f"led status: {led.value()}")

  message_1 = ujson.dumps({
    "temp": sensor.temperature(),
    "humidity": sensor.humidity(),
  })

  if message_1 != prev_weather:
    print("Updated!")
    print(f"Report dikirim ke MQTT topic {MQTT_TOPIC_1}: {message_1}")

    client.publish(MQTT_TOPIC_1, message_1)
    prev_weather = message_1
  else:
    print("Tidak ada perubahan")
    
  led.off()

  message_2 = ujson.dumps({
    "led_status": led.value()
  })

  client.publish(MQTT_TOPIC_2, message_2)
  time.sleep(2)