scinote-web/app/models/concerns/cloneable.rb

# frozen_string_literal: true

module Cloneable
  extend ActiveSupport::Concern

  def next_clone_name
    raise NotImplementedError, "Cloneable model must implement the '.parent' method!" unless respond_to?(:parent)

    clone_label = I18n.t('general.clone_label')
    last_clone_number =
      parent.public_send(self.class.table_name)
            .select("substring(#{self.class.table_name}.name, '(?:^#{clone_label} )(\\d+)')::int AS clone_number")
            .where('name ~ ?', "^#{clone_label} \\d+ - #{Regexp.escape(name)}$")
            .order(clone_number: :asc)
            .last&.clone_number

    "#{clone_label} #{(last_clone_number || 0) + 1} - #{name}".truncate(Constants::NAME_MAX_LENGTH)
  end
end