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

import onewire, ds18x20

# MQTT Server Parameters

#{clientId:"sboptawmalvfc2o8xbr8",userName:"s7izyp6vpg2ix5mri6eo",password:"hardvnplywr0c4nhh5ds"}
MQTT_CLIENT_ID = "sboptawmalvfc2o8xbr8"
MQTT_BROKER    = "host.wokwi.internal"
MQTT_USER      = "s7izyp6vpg2ix5mri6eo"
MQTT_PASSWORD  = "hardvnplywr0c4nhh5ds"
MQTT_TOPIC     = "v1/devices/me/telemetry"
MQTT_PORT      = "1883"


soil_sensor1 = ADC(Pin(35) )
soil_sensor2 = ADC(Pin(32) )
soil_sensor3 = ADC(Pin(33) )
threshold_low = 20
threshold_high = 80
max_level = 65535

ds_pin = Pin(4)
ds_sensor = ds18x20.DS18X20(onewire.OneWire(ds_pin))
roms = ds_sensor.scan()
print('Found DS devices: ', roms)

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, MQTT_PORT, user=MQTT_USER, password=MQTT_PASSWORD)
client.connect()

print("Connected!")
moisture=[0,0,0]
temperature=[0.0,0.0,0.0]
prev_weather = ""
while True:
  print("Measuring soil conditions... ", end="")
  moisture[0] = int(soil_sensor1.read_u16()*100/max_level)
  moisture[1] = int(soil_sensor2.read_u16()*100/max_level)
  moisture[2] = int(soil_sensor3.read_u16()*100/max_level)
  
  
  ds_sensor.convert_temp()
  time.sleep_ms(750)
  for rom in roms:
    i=roms.index(rom)
    temperature[i]=ds_sensor.read_temp(rom)   


  message = ujson.dumps({
    "m1": moisture[0],
    "m2": moisture[1],
    "m3": moisture[2],
    "t1": temperature[0],
    "t2": temperature[1],
    "t3": temperature[2],
  })
  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("No change")
  time.sleep(1)