module Guard::Deprecated::Guard::ClassMethods

def options
  UI.deprecation(OPTIONS)
  Class.new(Hash) do
    def initialize
      super(to_hash)
    end
    def to_hash
      session = ::Guard.state.session
      {
        clear: session.clearing?,
        debug: session.debug?,
        watchdir: Array(session.watchdirs).map(&:to_s),
        notify: session.notify_options[:notify],
        no_interactions: (session.interactor_name == :sleep)
      }
    end
    extend Forwardable
    delegate [:to_a, :keys] => :to_hash
    delegate [:include?] => :keys
    def fetch(key, *args)
      hash = to_hash
      verify_key!(hash, key)
      hash.fetch(key, *args)
    end
    def []=(key, value)
      case key
      when :clear
        ::Guard.state.session.clearing(value)
      else
        msg = "Oops! Guard.option[%s]= is unhandled or unsupported." \
          "Please file an issue if you rely on this option working."
        fail NotImplementedError, format(msg, key)
      end
    end
    private
    def verify_key!(hash, key)
      return if hash.key?(key)
      msg = "Oops! Guard.option[%s] is unhandled or unsupported." \
        "Please file an issue if you rely on this option working."
      fail NotImplementedError, format(msg, key)
    end
  end.new
end