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

# MQTT Server Parameters
MQTT_CLIENT_ID = "micropython-motion-demo"
MQTT_BROKER    = "broker.mqttdashboard.com"
MQTT_USER      = ""
MQTT_PASSWORD  = ""
MQTT_TOPIC     = "wokwi-motion"

# Define the PIR sensor pin
pir_pin = Pin(4, Pin.IN)  # D4 on ESP32

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!")

while True:
    motion_value = pir_pin.value()
    print("Motion value:", motion_value)

    if motion_value == 1:
        print("Motion detected!")
        message = "Motion detected!"
    else:
        print("No motion")
        message = "No motion"

    client.publish(MQTT_TOPIC, message)
    time.sleep(1)