# MicroPython firmware for the 10-button custom streamdeck Pico.
# Copy this file to the Pico as /main.py.

from machine import Pin
import time

# Button index 1..10 maps to the physical order provided by the wiring list.
BUTTON_PINS = [28, 27, 26, 22, 21, 20, 18, 19, 17, 16]
DEBOUNCE_MS = 35
POLL_MS = 5

buttons = [Pin(pin, Pin.IN, Pin.PULL_UP) for pin in BUTTON_PINS]
last_raw = [button.value() for button in buttons]
stable_state = last_raw[:]
last_change = [time.ticks_ms() for _ in buttons]

print("streamdeck-pico ready")
print("pins=" + ",".join(str(pin) for pin in BUTTON_PINS))

while True:
    now = time.ticks_ms()

    for index, button in enumerate(buttons):
        raw = button.value()

        if raw != last_raw[index]:
            last_raw[index] = raw
            last_change[index] = now

        if raw != stable_state[index] and time.ticks_diff(now, last_change[index]) >= DEBOUNCE_MS:
            stable_state[index] = raw
            pressed = raw == 0
            event = "down" if pressed else "up"
            button_number = index + 1
            gp_pin = BUTTON_PINS[index]
            print('{{"button":{},"pin":{},"event":"{}","pressed":{}}}'.format(
                button_number,
                gp_pin,
                event,
                "true" if pressed else "false",
            ))

    time.sleep_ms(POLL_MS)