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

# MQTT Server Parameters
MQTT_CLIENT_ID = "bf496c0587cd487d9207c24e3f544a7a.s1.eu.hivemq.cloud"
MQTT_BROKER    = "broker.mqttdashboard.com"
MQTT_USER      = ""
MQTT_PASSWORD  = ""
MQTT_TOPIC     = "wokwi-weather"

sensor = dht.DHT22(Pin(15))

pin_buzzer = Pin(12, Pin.OUT)

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(0.1)
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!")

prev_weather = ""
while True:
    print("\nStatus do Ambiente:  \n\n", end="")
    sensor.measure()
    message = ujson.dumps({
        "temp": sensor.temperature(),
        "humidity": sensor.humidity(),
    })

    if sensor.temperature() > 25:
        print("!!!ALTA TEMPERATURA!!!")
        pin_buzzer.on()  # Ativa o buzzer
    if sensor.temperature() < 20:
        print("!!!BAIXA TEMPERATURA!!!")
        pin_buzzer.on()  # Ativa o buzzer
    if sensor.temperature() >= 20 and sensor.temperature() <= 25:
        print("temperatura IDEAL")
        pin_buzzer.off()  # Desativa o buzzer

    if sensor.humidity() < 40:
        print("!!!BAIXA HUMIDADE!!!")
        pin_buzzer.on()  # Ativa o buzzer
    if sensor.humidity() > 60:
        print("!!!ALTA HUMIDADE!!!")
        pin_buzzer.on()  # Ativa o buzzer
    if sensor.humidity() >= 40 and sensor.humidity() <= 60:
        print("Humidade IDEAL")
        pin_buzzer.off()  # Desativa o buzzer

    if message != prev_weather:
        print("Updated!")
        print("Reporting to MQTT topic {}: {}".format(MQTT_TOPIC, message))
        client.publish(MQTT_TOPIC, message)
        prev_weather = message
    else:
        print("Atualizando...")
    time.sleep(10)