from machine import Pin, ADC
import utime

# Ultrasonic sensor
trigger = Pin(2, Pin.OUT)
echo = Pin(3, Pin.IN)
distance = 0  # Initialize distance as a global variable

# Simulate the turbidity sensor with a potentiometer
potentiometer_pin = 26  # Use Pin 26 for the ADC input
turbidity_adc = ADC(Pin(potentiometer_pin))

# Simulate the pH sensor with another potentiometer
ph_potentiometer_pin = 27  # Use Pin 27 for the ADC input of the simulated pH sensor
ph_adc = ADC(Pin(ph_potentiometer_pin))

# Simulate the water flow sensor with a push button
water_flow_pin = 14  # Use Pin 14 for the push button input
water_flow_sensor = Pin(water_flow_pin, Pin.IN, Pin.PULL_UP)
water_flow_count = 0
water_flow_pressed = False  # Flag to track button press

# Function to perform filtering process
def perform_filtering_process():
    # Simulated filtering process
    print("Performing filtering process...")

# Wokwi simulation code
def send_data_to_webpage(distance, turbidity_value, simulated_ph_value):
    print("Sending data to the web page...")
    print(f"{{'distance': {distance}, 'turbidity': {turbidity_value}, 'pH': {simulated_ph_value}}}")

def ultra():
    global distance  # Declare distance as a global variable
    trigger.low()
    utime.sleep_us(2)
    trigger.high()
    utime.sleep_us(5)
    trigger.low()
    while echo.value() == 0:
        signaloff = utime.ticks_us()
    while echo.value() == 1:
        signalon = utime.ticks_us()
    timepassed = signalon - signaloff
    distance = (timepassed * 0.0343) / 2

while True:
    ultra()
    utime.sleep(1)
    if 70 < distance < 90:
        print("Water tank is going to be full")
    if distance < 100 and not (70 < distance < 90):
        print("Water tank is full")
        break

    # Simulate turbidity level with the potentiometer
    turbidity_value = turbidity_adc.read_u16()
    print("Turbidity Level:", turbidity_value)

    # Simulate pH level with the potentiometer
    simulated_ph_value = ph_adc.read_u16()
    print("Simulated pH Level:", simulated_ph_value)

    # Call the function to send data to the web page
    
    sensorData=send_data_to_webpage(distance, turbidity_value, simulated_ph_value)


parent.postMessage(sensorData, '*');

utime.sleep(1)