ActiveAdmin::Dashboards.build do
  # Add this section in your dashboard...

  section "Background Jobs" do
    now = Time.now.getgm
    ul do
      li do
        jobs = Delayed::Job.where('failed_at is not null').count(:id)
        link_to "#{jobs} failing jobs", admin_jobs_path(q: {failed_at_is_not_null: true}), style: 'color: red'
      end
      li do
        jobs = Delayed::Job.where('run_at <= ?', now).count(:id)
        link_to "#{jobs} late jobs", admin_jobs_path(q: {run_at_lte: now.to_s(:db)}), style: 'color: hsl(40, 100%, 40%)'
      end
      li do
        jobs = Delayed::Job.where('run_at >= ?', now).count(:id)
        link_to "#{jobs} scheduled jobs", admin_jobs_path(q: {run_at_gte: now.to_s(:db)}), style: 'color: green'
      end
    end
  end

  # ...
end