#smart entry-exit monitoring system 
from machine import Pin
from time import sleep

# إعداد لمبات LED
led1 = Pin(2, Pin.OUT)
led2 = Pin(4, Pin.OUT)
led3 = Pin(16, Pin.OUT)
led4 = Pin(17, Pin.OUT)
led5 = Pin(5, Pin.OUT)
led6 = Pin(18, Pin.OUT)
led7 = Pin(19, Pin.OUT)
led8 = Pin(21, Pin.OUT)

# إعداد الأزرار
entrance_button = Pin(34, Pin.IN)
exit_button = Pin(35, Pin.IN)

# حالة النظام
car_count = 0

# حالة الأزرار السابقة
prev_entrance = 0
prev_exit = 0

while True:
    entrance_state = entrance_button.value()
    exit_state = exit_button.value()

    # زر الدخول
    if entrance_state and not prev_entrance:
        if car_count < 8:
            car_count += 1

    # زر الخروج
    if exit_state and not prev_exit:
        if car_count > 0:
            car_count -= 1

    # تحديث اللمبات يدويًا حسب قيمة car_count
    if car_count == 0:
        led1.value(0)
        led2.value(0)
        led3.value(0)
        led4.value(0)
        led5.value(0)
        led6.value(0)
        led7.value(0)
        led8.value(0)
    elif car_count == 1:
        led1.value(1)
        led2.value(0)
        led3.value(0)
        led4.value(0)
        led5.value(0)
        led6.value(0)
        led7.value(0)
        led8.value(0)
    elif car_count == 2:
        led1.value(1)
        led2.value(1)
        led3.value(0)
        led4.value(0)
        led5.value(0)
        led6.value(0)
        led7.value(0)
        led8.value(0)
    elif car_count == 3:
        led1.value(1)
        led2.value(1)
        led3.value(1)
        led4.value(0)
        led5.value(0)
        led6.value(0)
        led7.value(0)
        led8.value(0)
    elif car_count == 4:
        led1.value(1)
        led2.value(1)
        led3.value(1)
        led4.value(1)
        led5.value(0)
        led6.value(0)
        led7.value(0)
        led8.value(0)
    elif car_count == 5:
        led1.value(1)
        led2.value(1)
        led3.value(1)
        led4.value(1)
        led5.value(1)
        led6.value(0)
        led7.value(0)
        led8.value(0)
    elif car_count == 6:
        led1.value(1)
        led2.value(1)
        led3.value(1)
        led4.value(1)
        led5.value(1)
        led6.value(1)
        led7.value(0)
        led8.value(0)
    elif car_count == 7:
        led1.value(1)
        led2.value(1)
        led3.value(1)
        led4.value(1)
        led5.value(1)
        led6.value(1)
        led7.value(1)
        led8.value(0)
    elif car_count == 8:
        led1.value(1)
        led2.value(1)
        led3.value(1)
        led4.value(1)
        led5.value(1)
        led6.value(1)
        led7.value(1)
        led8.value(1)

    prev_entrance = entrance_state
    prev_exit = exit_state
    sleep(0.1)