# frozen_string_literal: true

module ArticleFixtureGen
  module Data
    # Given a parent element and an array of integers which fully specify the
    # DOM position of a node (or element, really), walk the DOM from the given
    # parent to find the element which contains a node at the specified point
    # below that parent. This is to work around the fact that Ox maintains no
    # links between a node (or element) with its parent.
    class ParentElementFor
      def self.call(parent, dom_pos_indexes)
        el = parent
        dom_pos_indexes[0..-2].each { |index| el = el.nodes[index] }
        el
      end
    end # class ArticleFixtureGen::Data::ParentElementFor
  end
end