class AdditionalsImport < Import
  class_attribute :import_class

  # Returns the objects that were imported
  def saved_objects
    object_ids = saved_items.pluck(:obj_id)
    import_class.where(id: object_ids).order(:id)
  end

  def project=(project)
    settings['project'] = project
  end

  def project
    settings['project']
  end

  def mappable_custom_fields
    object = import_class.new
    @custom_fields = object.custom_field_values.map(&:custom_field)
  end

  def build_custom_field_attributes(object, row)
    object.custom_field_values.each_with_object({}) do |v, h|
      value = case v.custom_field.field_format
              when 'date'
                row_date(row, "cf_#{v.custom_field.id}")
              when 'list'
                row_value(row, "cf_#{v.custom_field.id}").try(:split, ',')
              else
                row_value(row, "cf_#{v.custom_field.id}")
              end
      next unless value

      h[v.custom_field.id.to_s] =
        if value.is_a?(Array)
          value.map { |val| v.custom_field.value_from_keyword(val.strip, object) }.compact!.flatten
        else
          v.custom_field.value_from_keyword(value, object)
        end
    end
  end
end