class Minitest::TestProf::FactoryDoctorReporter

def initialize(io = $stdout, options = {})
  super
  ::TestProf::FactoryDoctor.init
  @count = 0
  @time = 0.0
  @example_groups = Hash.new { |h, k| h[k] = [] }
end

def pluralize_records(count)
  (count == 1) ? "1 record" : "#{count} records"
end

def prerecord(_group, _example)
  ::TestProf::FactoryDoctor.start
end

def record(example)
  ::TestProf::FactoryDoctor.stop
  return if example.skipped? || ::TestProf::FactoryDoctor.ignore?
  result = ::TestProf::FactoryDoctor.result
  return unless result.bad?
  # Minitest::Result (>= 5.11) has `klass` method
  group_name = example.respond_to?(:klass) ? example.klass : example.class.name
  group = {
    description: group_name,
    location: location_without_line_number(example)
  }
  @example_groups[group] << {
    description: example.name.gsub(/^test_(?:\d+_)?/, ""),
    location: location_with_line_number(example),
    factories: result.count,
    time: result.time
  }
  @count += 1
  @time += result.time
end

def report
  return log(:info, SUCCESS_MESSAGE) if @example_groups.empty?
  msgs = []
  msgs <<
    <<~MSG
      FactoryDoctor report
      Total (potentially) bad examples: #{@count}
      Total wasted time: #{@time.duration}
    MSG
  @example_groups.each do |group, examples|
    msgs << "#{group[:description]} (#{group[:location]})\n"
    examples.each do |ex|
      msgs << "  #{ex[:description]} (#{ex[:location]}) " \
              "– #{pluralize_records(ex[:factories])} created, " \
              "#{ex[:time].duration}\n"
    end
    msgs << "\n"
  end
  log :info, msgs.join
end