module LeapCli; module Commands

  extend self
  extend LeapCli::Util

  def path(name)
    Path.named_path(name)
  end

  #
  # keeps prompting the user for a numbered choice, until they pick a good one or bail out.
  #
  # block is yielded and is responsible for rendering the choices.
  #
  def numbered_choice_menu(msg, items, &block)
    while true
      say("\n" + msg + ':')
      items.each_with_index &block
      say("q. quit")
      index = ask("number 1-#{items.length}> ")
      if index.empty?
        next
      elsif index =~ /q/
        bail!
      else
        i = index.to_i - 1
        if i < 0 || i >= items.length
          bail!
        else
          return i
        end
      end
    end
  end


  def parse_node_list(nodes)
    if nodes.is_a? Config::Object
      Config::ObjectList.new(nodes)
    elsif nodes.is_a? Config::ObjectList
      nodes
    elsif nodes.is_a? String
      manager.filter!(nodes)
    else
      bail! "argument error"
    end
  end

end; end