Report.add_report('time_to_first_response') do |report|
  category_filter = report.filters.dig(:category)
  report.add_filter('category', default: category_filter)

  report.icon = 'reply'
  report.higher_is_better = false
  report.data = []

  Topic.time_to_first_response_per_day(report.start_date, report.end_date, category_id: category_filter).each do |r|
    report.data << { x: r['date'], y: r['hours'].to_f.round(2) }
  end

  report.total = Topic.time_to_first_response_total(category_id: category_filter)

  report.prev30Days = Topic.time_to_first_response_total(start_date: report.start_date - 30.days, end_date: report.start_date, category_id: category_filter)
end