from neopixel import NeoPixel
from utime import sleep
from machine import Pin, ADC
import random, time
num_led = 16

leds = NeoPixel(Pin(18), num_led)
button =  Pin(19, Pin.IN, Pin.PULL_UP)
varcevanje =  Pin(17, Pin.IN, Pin.PULL_UP)
potn = ADC(Pin(15))
ledica = Pin(2, Pin.OUT)


while True:
    r = 0
    cas = 0 
    a = 255
    b = 255
    c = 255
    d = a//15
    while varcevanje.value() == 0:
        while r == 0:
            print("Koda zaustavljena izpustite gumb za nadaljevanje")
            r += 1
        leds.fill([a, b, c])
        leds.write()
        if cas == 15:
            break
        print(f"Vkljapljate nacin varcevanja, do vklopa je {15-cas}")
        ledica.value(1)
        ledica.value(0)
        sleep(1)
        cas += 1
        a -= d
        b -= d
        c -= d 
    if cas >= 15:
        ledica.value(0)
        print("Vklop varčevalnega načina!")
        break
    sleep(potn.read()//1000)
    a = random.randint(0, 255)
    b = random.randint(0, 255)
    c = random.randint(0, 255)
    d = a//15
    e = b//15
    f = c//15
    if button.value() == 0:
        for i in reversed(range(num_led)):
            leds[i] = (a, b, c)
            leds.write()
            a -= d
            b -= e
            c -= f
            sleep(potn.read()//1000)
    for i in range(num_led):
        leds[i] = (a, b, c)
        leds.write()
        a -= d
        b -= e
        c -= f
        sleep(potn.read()//1000)