# frozen_string_literal: true

module Refinements
  module IOs
    refine IO.singleton_class do
      def void
        new(sysopen("/dev/null", "w+")).then do |io|
          return io unless block_given?

          yield io
          io.tap(&:close)
        end
      end
    end

    refine IO do
      def squelch &block
        self.class.void.then { |void| redirect(void, &block) }
      end

      def redirect other
        return self unless block_given?

        backup = dup
        reopen other
        yield self
        reopen backup
      end

      def reread length = nil, buffer: nil
        tap(&:rewind).read length, buffer
      end
    end
  end
end