print("Automatic Light Sensor Detector")
print("This program integrates Ultrasonic sensor with ESP32")

#Import libraries/modules
import Ultrasonic_library
from machine import Pin, SoftI2C, PWM, ADC #softI2C kena ada if sda & scl wujud
import OLED_library
from utime import sleep

#Declare pin connection of ultrasonic and create an object
#Called Sensor using OOp (Object Oriented Programming)
#OOP format --> library name, class name (........)
Sensor = Ultrasonic_library.HCSR04 (trigger_pin=25, echo_pin=33, echo_timeout_us=500*2*30)

#Declare pin on OLED Display
i2c_oled = SoftI2C(scl=Pin(22), sda=Pin(21))
oled_width = 128 #based on spec
oled_height = 64 #based on spec
screen = OLED_library.SSD1306_I2C(oled_width, oled_height,i2c_oled)

#pin LDR
LDR = ADC(Pin(34, Pin.IN))
LDR.atten(ADC.ATTN_11DB)
#adc.read()

#Declare input and output pin 
#Remarks: LED and buzzer as Output and Ultrasonic sensor will be Input
led_white = Pin(12, Pin.OUT)
buzzer = PWM(Pin(23), Pin.OUT)

#Initialize the count variable
count = 0


while True:
    ldr_value = LDR.read()

    #Let's test Sensor!
    jarak_in_mm = Sensor.distance_mm()

    #Display the distance from the object
    print('Distance from an object is : ',jarak_in_mm, 'mm') #choose mm if u want while number 
    print('--------------------------------------------------')
    print('\n')

    #Display on OLED screen
    screen.fill(0)
    screen.text('Object detected:', 0, 0,) #x-axis, y-axis
    screen.text(str (jarak_in_mm) , 0, 20,)
    screen.text ('mm' , 60, 20,)

    screen.show()

    #Making decision on how close the object
    if jarak_in_mm < 0 and ldr_value > 853: #Twillight
    
        led_white.on()
        sleep (10)
        led_white.off()
    
    
    elif jarak_in_mm < 1000 and ldr_value > 8: #lux 100,000 = Direct sunlight:

            #Count object detected
            count += 1
            print("Count:", count)
            
            #LED ON
            led_white.on()
            sleep(10) 
            led_white.off()


    elif jarak_in_mm < 1000 and ldr_value < 853:

            #Count object detected
            count += 1
            print("Count:", count)
            
            #LED ON
            led_white.on()
            sleep(10) 
            led_white.off()


    elif jarak_in_mm > 1000 and ldr_value < 8:

            count = count
            print("Count:", count)
            
            #Turn OFF the LED
            led_white.off()
            sleep(10) 


    elif jarak_in_mm > 1000 and ldr_value < 853:
           
            count = count
            print("Count:", count)

            #Turn OFF the LED
            led_white.off()
            sleep(10) 
            

    else:
            led_white.off()


    sleep (5)