class BundleUpdateInteractive::ChangelogLocator

def fetch_rubygems_data(name, version)
  api_url = if version.nil?
              "https://rubygems.org/api/v1/gems/#{name}.json"
            else
              "https://rubygems.org/api/v2/rubygems/#{name}/versions/#{version}.json"
            end
  response = HTTP.get(api_url)
  # Try again without the version in case the version does not exist at rubygems for some reason.
  # This can happen when using a pre-release Ruby that has a bundled gem newer than the published version.
  return fetch_rubygems_data(name, nil) if !response.success? && !version.nil?
  response.success? ? JSON.parse(response.body) : nil
end

def find_changelog_uri(name:, version: nil)
  data = fetch_rubygems_data(name, version)
  return if data.nil?
  if (rubygems_changelog_uri = data["changelog_uri"])
    rubygems_changelog_uri
  elsif (github_repo = GitHubRepo.from_uris(data.values_at(*URI_KEYS)))
    github_repo.discover_changelog_uri(data["version"])
  end
end