class Dependabot::Uv::Package::PackageDetailsFetcher

def fetch_from_registry(index_url)
  if Dependabot::Experiments.enabled?(:enable_cooldown_for_uv)
    metadata = fetch_from_json_registry(index_url)
    return metadata if metadata&.any?
    Dependabot.logger.warn("No valid versions found via JSON API. Falling back to HTML.")
  end
  fetch_from_html_registry(index_url)
rescue StandardError => e
  Dependabot.logger.warn("Unexpected error in JSON fetch: #{e.message}. Falling back to HTML.")
  fetch_from_html_registry(index_url)
end