"""Cached version lookup for the web UI."""

from functools import lru_cache
from importlib.metadata import PackageNotFoundError, version

from app import __version__ as _SERVER_VERSION_FALLBACK


@lru_cache(maxsize=1)
def get_versions() -> dict[str, str]:
    try:
        server = version('supertonic3-openai-server')
    except PackageNotFoundError:
        server = _SERVER_VERSION_FALLBACK

    try:
        supertonic3 = version('supertonic3')
    except PackageNotFoundError:
        supertonic3 = 'unknown'

    return {'server': server, 'supertonic3': supertonic3}