class ActiveAdmin::Views::Tabs

def build(&block)
  @menu = ul(class: "nav nav-tabs", role: "tablist")
  @tabs_content = div(class: "tab-content")
end

def build_content_item(title, options, &block)
  options = options.reverse_merge(id: fragmentize(title))
  div(options, &block)
end

def build_menu_item(title, options, &block)
  fragment = options.fetch(:id, fragmentize(title))
  html_options = options.fetch(:html_options, {})
  li html_options do
    link_to title, "##{fragment}"
  end
end

def fragmentize(string)
  result = string.parameterize
  result = CGI.escape(string) if result.blank?
  result
end

def tab(title, options = {}, &block)
  title = title.to_s.titleize if title.is_a? Symbol
  @menu << build_menu_item(title, options, &block)
  @tabs_content << build_content_item(title, options, &block)
end