import io
from PIL import Image, ImageOps
import warnings

def prepare_database_image(image_bytes: bytes, quality: int = 90) -> bytes:
    warnings.simplefilter('ignore', Image.DecompressionBombWarning)
    Image.MAX_IMAGE_PIXELS = 25000000 
    with Image.open(io.BytesIO(image_bytes)) as img:
        img = img.convert("RGBA")
        img = ImageOps.fit(img, (400, 600), centering=(0.5, 0.2))
        out_io = io.BytesIO()
        img.save(out_io, format="WEBP", quality=quality)
        return out_io.getvalue()