module ActiveData
  module Model
    module Associations
      module Validations
        def valid_ancestry?
          errors.clear
          validate_nested!
          run_validations!
        end
        alias_method :validate_ancestry, :valid_ancestry?

        def invalid_ancestry?
          !valid_ancestry?
        end

        def validate_ancestry!
          valid_ancestry? || raise_validation_error
        end

      private

        def validate_nested!
          association_names.each do |name|
            association = association(name)
            invalid_block = if association.reflection.klass.method_defined?(:invalid_ansestry?)
              ->(object) { object.invalid_ansestry? }
            else
              ->(object) { object.invalid? }
            end

            ActiveData::Model::Validations::NestedValidator
              .validate_nested(self, name, association.target, &invalid_block)
          end
        end
      end
    end
  end
end