module Jekyll
  module Explorer
    def explore(
      input,
      node = @context.registers[:site].config['node'],
      explorer = @context.registers[:site].config['explorer']
    )
      base = "https://#{explorer}"
      if input.nil?
        base
      else
        "#{base}/nodes/#{node}/#{input}"
      end
    end
  end
end

Liquid::Template.register_filter(Jekyll::Explorer)