module MediamtxPlayback
  extend ActiveSupport::Concern

  private

  def mediamtx_paths_index
    @mediamtx_paths_index ||= Mediamtx::Client.new.list_paths.index_by { |i| i["name"] }
  end

  def mediamtx_path_info(session, path_name: mediamtx_playback_path_name(session))
    mediamtx_paths_index[path_name]
  end

  def mediamtx_playback_path_name(session)
    session.effective_hls_path_name
  end

  # Player HLS: path _air con overlay quando il relay è attivo.
  def mediamtx_stream_playable?(session)
    return false if session.terminal?

    mediamtx_path_has_output?(session)
  end

  def mediamtx_path_has_output?(session)
    info = mediamtx_path_info(session)
    info && (info["ready"] || info["available"] || info["online"])
  end

  def mediamtx_publisher_online?(session)
    info = mediamtx_paths_index[session.mediamtx_path_name]
    info && info["online"]
  end
end