from lcd_i2c import LCD
from machine import I2C, Pin
from umqtt.simple import MQTTClient
import dht 
import time
import network

I2C_ADDR = 0x27     # DEC 39, HEX 0x27
i2c = I2C(0, scl=Pin(18), sda=Pin(19), freq=800000)
lcd = LCD(addr=I2C_ADDR, cols=20, rows=4, i2c=i2c)

lcd.begin()

ssid = 'Wokwi-GUEST'
wifipassword = ''
sensor = dht.DHT22(Pin(14))
#definimos modo STATION
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)
#conectamos a wifi
sta_if.connect(ssid, wifipassword)

lcd.clear()
lcd.set_cursor(0,0)
lcd.print("Conectando WiFi")
lcd.set_cursor(col=0,row=1)
lcd.print(ssid)

i = 0

lcd.set_cursor(0,2)
#lcd.print("Conectando")

while not sta_if.isconnected():
    lcd.set_cursor(0,2)

    if i == 0:
        lcd.print(".   ")
    elif i == 1:
        lcd.print("..  ")
    elif i == 2:
        lcd.print("... ")
    else:
        lcd.print("....")

    i = (i + 1) % 4
    time.sleep(0.5)

#vemos cuales son las IP
print(sta_if.ifconfig())
mqtt_server = 'io.adafruit.com'
port = 1883
user = 'Ismael2002Inca'
password = 'aio_HsLV60YzjA1tepdNwQa6txOG4QKT'
client_id = '123456'
topic_medidor = "Ismael2002Inca/feeds/medidor"
topic_control = "Ismael2002Inca/feeds/control"
topic_alarma1 = "Ismael2002Inca/feeds/alarma1"
topic_alarma2 = "Ismael2002Inca/feeds/alarma2"

lcd.clear()
lcd.set_cursor(0,0)
lcd.print("WiFi OK")
time.sleep(2)

lcd.clear()
lcd.print("Sistema iniciado")
lcd.set_cursor(col=0,row=1)
lcd.print("Monitoreando...")
time.sleep(2)

try:
    conexionMQTT = MQTTClient(client_id,mqtt_server,user=user,password=password,port=port)

    conexionMQTT.connect()

    print("Conectado a Broker MQTT!")

except OSError as e:
    print("Fallo conexion MQTT")

temperatura = 24
while True:

    # Leer temperatura
    sensor.measure()

    nueva_temp = round(sensor.temperature(),1)
    if nueva_temp > temperatura:
        temperatura = nueva_temp

    humedad = sensor.humidity()

    conexionMQTT.publish(topic_medidor,"{}".format(temperatura))
    print("Temperatura enviada:", temperatura)

    # Limpiar pantalla
    lcd.clear()

    # Primera fila
    lcd.set_cursor(col=0,row=0)
    lcd.print("Temp: {} C".format(temperatura))

    # Segunda fila
    lcd.set_cursor(col=0,row=1)
    lcd.print("Hum: {} %".format(humedad))

    # Tercera fila
    lcd.set_cursor(col=0,row=2)

    if temperatura > 38:
        lcd.print("!!! PELIGRO !!!")

        conexionMQTT.publish(topic_alarma1,"1")
        conexionMQTT.publish(topic_alarma2, "1")
        print("Enviado ON")
        temperatura -= 2

    elif temperatura > 28:
        lcd.print("AC: ENCENDIDO")

        conexionMQTT.publish(topic_alarma1,"0")
        conexionMQTT.publish(topic_alarma2, "1")
        
        print("Enviado ON")
        temperatura -= 1

    else:
        lcd.print("AC: APAGADO")

        conexionMQTT.publish(topic_alarma1,"0")
        conexionMQTT.publish(topic_alarma2,"0")
        print("Enviado Off")

    # Cuarta fila
    lcd.set_cursor(col=0,row=3)
    lcd.print("Data Center")

    time.sleep(6)