import machine
import utime as time
from machine import Pin

# LED Pin initialization
led1 = Pin(19, Pin.IN)
led2 = Pin(18, Pin.IN)
led3 = Pin(5, Pin.IN)
led4 = Pin(17, Pin.IN)

# Rotary encoder input pins
clk = Pin(26, Pin.IN, Pin.PULL_DOWN)  # Using CLK (A) pin 26
dt = Pin(27, Pin.IN, Pin.PULL_DOWN)  # Using DT (B) pin 27

# Initialize the rotary encoder angle
angle = 0
step = 360 / 20

def rotary_change(pin):
    global angle

    # Read current state of CLK
    current_state_clk = clk.value()

    # If last and current state of CLK are different, then we have a pulse
    # We only react to HIGH to LOW change
    if (dt.value() != current_state_clk):  # If DT state is different than CLK, rotate clockwise
        angle += step
        print("Clockwise")
    else:
        angle -= step
        print("CounterClockwise")
    
    # Ensure the angle is always between 0 and 360 degrees
    angle = (angle + 360) % 360
    print("Angle:", angle)

    # LED control based on angle range
    if angle < 80:
        led1.off()
        led2.off()
        led3.off()
        led4.off()
    elif angle < 160:
        led1.on()
        led2.off()
        led3.off()
        led4.off()
    elif angle < 240:
        led1.on()
        led2.on()
        led3.off()
        led4.off()
    elif angle < 320:
        led1.on()
        led2.on()
        led3.on()
        led4.off()
    else:
        led1.on()
        led2.on()
        led3.on()
        led4.on()

# Add a small delay to avoid immediate interrupts at startup
time.sleep(0.5)  # Give some time for the pins to stabilize

# Set up interrupt for rotary encoder change
clk.irq(handler=rotary_change, trigger=Pin.IRQ_FALLING | Pin.IRQ_RISING)

# Main loop to keep the program running
while True:
    time.sleep(0.1)