class Dependabot::Uv::MetadataFinder

def source_from_description
  potential_source_urls = []
  desc = pypi_listing.dig("info", "description")
  return unless desc
  desc.scan(Source::SOURCE_REGEX) do
    potential_source_urls << Regexp.last_match.to_s
  end
  # Looking for a source where the repo name exactly matches the
  # dependency name
  match_url = potential_source_urls.find do |url|
    repo = Source.from_url(url)&.repo
    repo&.downcase&.end_with?(normalised_dependency_name)
  end
  return match_url if match_url
  # Failing that, look for a source where the full dependency name is
  # mentioned when the link is followed
  @source_from_description ||=
    potential_source_urls.find do |url|
      full_url = Source.from_url(url)&.url
      next unless full_url
      response = Dependabot::RegistryClient.get(url: full_url)
      next unless response.status == 200
      response.body.include?(normalised_dependency_name)
    end
end