# frozen_string_literal: true

return unless helper.ci?

SPECIALIZATIONS = {
  database: 'database',
  backend: 'backend',
  frontend: 'frontend',
  ux: 'UX',
  docs: 'documentation',
  qa: 'QA',
  ci_template: 'ci::templates',
  feature_flag: 'feature flag'
}.freeze

labels_to_add = helper.changes_by_category.each_with_object([]) do |(category, _changes), memo|
  label = SPECIALIZATIONS[category]
  next unless label
  next if helper.mr_labels.include?(label)

  # Don't override already-set scoped labels.
  label_scope = label.split('::')[0...-1].join('::')
  next if !label_scope.empty? && helper.has_scoped_label_with_scope?(label_scope)

  memo << label
end

helper.labels_to_add.concat(labels_to_add) if labels_to_add.any?