import time
import board
from digitalio import DigitalInOut, Direction, Pull
import usb_midi
import adafruit_midi
from adafruit_midi.control_change   import ControlChange

#  MIDI setup as MIDI out device
midi = adafruit_midi.MIDI(midi_out=usb_midi.ports[1], out_channel=0)


#  button pins, all pins in order skipping GP15
button_pins = [
    board.GP18,
    board.GP19,
    board.GP20,
    board.GP21,
    board.GP22,
    ]

buttons = []
for pin in button_pins:
    button = DigitalInOut(pin)
    button.direction = Direction.INPUT
    button.pull = Pull.UP
    buttons.append(button)

cc_numbers = [
        20,
        21,
        22,
        23,
        24,
        ]



#  button states
button_states = [True] * len(buttons)


while True:
    for i, button in enumerate(buttons):
        current_state = button.value
        if current_state != button_states[i]:
            if not current_state:
                # Button pressed
                midi.send(ControlChange(cc_numbers[i], 127))
                print(f"Button {i+1} pressed -> CC{cc_numbers[i]}:127")
            else:
                # Button released
                midi.send(ControlChange(cc_numbers[i], 0))
                print(f"Button {i+1} released -> CC{cc_numbers[i]}:0")
            button_states[i] = current_state

    time.sleep(0.01)