class ActiveAdmin::Views::Scopes

def build(scopes, options = {})
  super({ role: "toolbar" })
  add_class "scopes"
  scopes.group_by(&:group).each do |group, group_scopes|
    div class: "index-button-group", role: "group", data: { "group": group_name(group) } do
      group_scopes.each do |scope|
        build_scope(scope, options) if call_method_or_exec_proc(scope.display_if_block)
      end
      nil
    end
  end
end

def build_scope(scope, options)
  params = request.query_parameters.except :page, :scope, :commit, :format
  a href: url_for(scope: scope.id, params: params), class: classes_for_scope(scope) do
    text_node scope_name(scope)
    if options[:scope_count] && scope.show_count
      span get_scope_count(scope), class: "scopes-count"
    end
  end
end

def classes_for_scope(scope)
  classes = ["index-button"]
  classes << "index-button-selected" if current_scope?(scope)
  classes.join(" ")
end

def current_scope?(scope)
  if params[:scope]
    params[:scope] == scope.id
  else
    active_admin_config.default_scope(self) == scope
  end
end

def get_scope_count(scope)
  collection_size(scope_chain(scope, collection_before_scope))
end

def group_name(group)
  group.present? ? group : "default"
end

def tag_name
  "div"
end