# frozen_string_literal: true

require "yaml"

module PaperTrail
  module Serializers
    # The default serializer for, e.g. `versions.object`.
    module YAML
      extend self # makes all instance methods become module methods as well

      def load(string)
        ::YAML.respond_to?(:unsafe_load) ? ::YAML.unsafe_load(string) : ::YAML.load(string)
      end

      # @param object (Hash | HashWithIndifferentAccess) - Coming from
      # `recordable_object` `object` will be a plain `Hash`. However, due to
      # recent [memory optimizations](https://git.io/fjeYv), when coming from
      # `recordable_object_changes`, it will be a `HashWithIndifferentAccess`.
      def dump(object)
        object = object.to_hash if object.is_a?(HashWithIndifferentAccess)
        ::YAML.dump object
      end

      # Returns a SQL LIKE condition to be used to match the given field and
      # value in the serialized object.
      def where_object_condition(arel_field, field, value)
        arel_field.matches("%\n#{field}: #{value}\n%")
      end
    end
  end
end