from machine import Pin
from time import sleep

print("Smart Toggle Multi-LED Pattern Project Started")

# LED Pins
led1 = Pin(13, Pin.OUT)
led2 = Pin(14, Pin.OUT)
led3 = Pin(15, Pin.OUT)

# Button
button = Pin(18, Pin.IN, Pin.PULL_DOWN)

mode = 0
last_button_state = 0

# Function to turn off all LEDs
def all_off():
    led1.value(0)
    led2.value(0)
    led3.value(0)

while True:
    current_button_state = button.value()
    
    # Detect button press
    if current_button_state == 1 and last_button_state == 0:
        mode += 1
        if mode > 3:
            mode = 0
        
        print("Mode:", mode)
        sleep(0.3)  # debounce
    
    last_button_state = current_button_state

    # Mode 0: All OFF
    if mode == 0:
        all_off()

    # Mode 1: Running Light
    elif mode == 1:
        led1.value(1); led2.value(0); led3.value(0)
        sleep(0.2)
        led1.value(0); led2.value(1); led3.value(0)
        sleep(0.2)
        led1.value(0); led2.value(0); led3.value(1)
        sleep(0.2)

    # Mode 2: Blink All
    elif mode == 2:
        led1.value(1); led2.value(1); led3.value(1)
        sleep(0.3)
        all_off()
        sleep(0.3)

    # Mode 3: Alternate Pattern
    elif mode == 3:
        led1.value(1); led2.value(0); led3.value(1)
        sleep(0.3)
        led1.value(0); led2.value(1); led3.value(0)
        sleep(0.3)