from io import BytesIO

import qrcode


def generate_qr_image_bytes(text: str, size: int = 300) -> bytes:
    img = qrcode.make(text)

    if getattr(img, "mode", None) != "RGB":
        img = img.convert("RGB")

    if size:
        img = img.resize((size, size))

    buf = BytesIO()
    img.save(buf, "PNG")
    buf.seek(0)
    return buf.getvalue()