import time
import random
from machine import Pin, PWM

# print("hello")
push_btn = Pin(2, Pin.IN, Pin.PULL_UP)
switch = Pin(27, Pin.IN, Pin.PULL_UP)
red = Pin(6, Pin.OUT)
blue = Pin(8, Pin.OUT)
green = PWM(Pin(7))

green.freq(1000)

while True:
    if switch.value() == 0:
        red.value(0)
        
        time1 = random.randint(1, 5)
        time.sleep(time1)

        if switch.value() != 0:
            continue

        if push_btn.value() != 1:
            print("No cheating! Don't hold the button early.")
            red.value(1)
            time.sleep(2)
            red.value(0)
            continue

        blue.value(1)
        start_time = time.ticks_ms()
        
        while push_btn.value() == 1:
            if switch.value() != 0:
                break 
        
        if switch.value() != 0:
            blue.value(0)
            continue
            
        end_time = time.ticks_ms()
        reaction_time = time.ticks_diff(end_time, start_time)
        blue.value(0)

        print(f"your reaction time is {reaction_time} ms")
        green.duty_u16(65535)
        time.sleep(2)
        green.duty_u16(0)
        
    else:
        print("Switched is off")
        red.value(1)
        time.sleep(1)