#! env/bin/python3

import RPi.GPIO as GPIO
import time

if __name__ == "__main__":

    # Setup for Hardware
    PB1_BCM = 4     # Green
    PB2_BCM = 27    # Yellow
    PB3_BCM = 13    # Blue

    GPIO.setmode(GPIO.BCM)
    GPIO.setwarnings(False)

    # Use the internal pull-down.
    GPIO.setup(PB1_BCM, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
    GPIO.setup(PB2_BCM, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
    GPIO.setup(PB3_BCM, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)

    # Begin detected presses.
    i = 0
    try:
        while True:
            # Green
            if GPIO.input(PB1_BCM):
                i += 1
                print(f"Hi Gabby! Did you push the GREEN button? i = {i}")
            # Yellow
            if GPIO.input(PB2_BCM):
                i += 1
                print(f"Hi Gabby! Did you push the YELLOW button? i = {i}")
            # Blue
            if GPIO.input(PB3_BCM):
                i += 1
                print(f"Hi Gabby! Did you push the BLUE button? i = {i}")
            time.sleep(0.1)

    finally:
        GPIO.cleanup()