import network
import dht
import ujson

from machine import Pin
from utime import sleep
from machine import Pin
from umqtt.simple import MQTTClient

print("Hello, ESP32!")

MQTT_CLIENT_ID = "micropython-weather-demo"
MQTT_BROKER    = "broker.mqttdashboard.com"
MQTT_USER      = "adipta"
MQTT_PASSWORD  = "adipta"
MQTT_TOPIC     = "/transformers/adipta"

def message_callback(topic, msg):
    global last_topic, last_message
    last_topic = topic.decode()
    last_message = msg.decode()
    print("Pesan diterima di topik {}: {}".format(last_topic, last_message))

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="")
  sleep(0.1)
print(" Connected!")

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

client.set_callback(message_callback)
client.subscribe(MQTT_TOPIC)

led = Pin(15, Pin.OUT)
while True:
    client.wait_msg()
    if last_message == "on":
        led.on()
        sleep(0.5)
    elif last_message == "off":
        led.off()
        sleep(0.5)
    else:
        print("message not recognized")