from evdev import InputDevice, list_devices, ecodes

SCANCODES = {0x11A: "up", 0x148: "down", 0x147: "left", 0x107: "right", 0x106: "ok", 0x141: "play/pause", 0x11c: "power", 0x103: "vol+", 0x142: "vol-"}

device = None
last = 0x00

def do_action(action: str):
    if action == "ok":
        print("ok")

for path in list_devices():
    candidate = InputDevice(path)

    if candidate.name == "meson-ir":
        device = candidate
        break

if device is None:
    raise RuntimeError("meson-ir input device not found")

print(f"Listening on {device.path}: {device.name}")

try:
    for event in device.read_loop():
        if event.type == ecodes.EV_MSC and event.code == ecodes.MSC_SCAN:
            if (event.value != last):
                print(f"scancode {event.value:#x}")
                last = event.value
                action = SCANCODES.get(event.value)
                if action:
                    print(f"got action {action}")
                    do_action(action)
            else:
                print(f"repeat scancode {event.value:#x}")
                last = 0x00
except KeyboardInterrupt:
    print("\nExiting...")
finally:
    device.close()