module Remedy
  module ConsoleResized
    module_function

    def resizing?
      @resize_count > 0
    end

    def resizing!
      @resize_count = @resize_count < 1 ? 1 : @resize_count + 1
    end

    def resized?
      @resize_count <= 1
    end

    def resized!
      @resize_count = @resize_count < 0 ? 0 : @resize_count - 1
    end

    def resizer?
      @resize_count == 1
    end

    def set_console_resized_hook!
      @resize_count = 0

      command = lambda { |x|
        resizing!
        sleep 0.25

        if resized? then
          yield
        end

        resized!
      }

      Signal.trap 'SIGWINCH', command
    end

    def default_console_resized_hook!
      Signal.trap 'SIGWINCH', 'DEFAULT'
    end
  end
end