from machine import Pin
import time
import dht
import network
import urequests

# ====== WIFI (WORKWI) ======
SSID = "Wokwi-GUEST"
PASSWORD = ""

# ====== THINGSPEAK ======
API_KEY = "THZOBT2C1VSPMFRQ"
URL = "http://api.thingspeak.com/update"

# ====== LEDs ======
led_vm = Pin(13, Pin.OUT)  # vermelho
led_vd = Pin(12, Pin.OUT)  # verde
led_az = Pin(11, Pin.OUT)  # azul

# ====== SENSOR ======
sensor = dht.DHT22(Pin(15))

# ====== FAIXA IDEAL ======
TEMP_MIN = 20
TEMP_MAX = 24

# ====== CONECTAR WIFI ======
wifi = network.WLAN(network.STA_IF)
wifi.active(True)
wifi.connect(SSID, PASSWORD)

print("Conectando ao Wi-Fi (Workwi)...")
while not wifi.isconnected():
    time.sleep(1)

print("Conectado!")
print("IP:", wifi.ifconfig()[0])

# ====== LOOP ======
while True:
    try:
        sensor.measure()
        temp = sensor.temperature()
        umid = sensor.humidity()

        print("Temp:", temp, "°C | Umidade:", umid, "%")

        # LEDs
        led_vm.off()
        led_vd.off()
        led_az.off()

        if temp > TEMP_MAX:
            led_vm.on()
        elif temp < TEMP_MIN:
            led_az.on()
        else:
            led_vd.on()

        # ====== ENVIO ======
        url = f"{URL}?api_key={API_KEY}&field1={temp}&field2={umid}"
        response = urequests.get(url)
        print("ThingSpeak:", response.text)
        response.close()

    except Exception as e:
        print("Erro:", e)

    # mínimo 15s
    time.sleep(15)