module ActiveFedora::Attributes

def [](key)
  if assoc = association(key.to_sym)
    # This is for id attributes stored in the rdf graph.
    assoc.reader
  elsif self.class.properties.key?(key.to_s) || self.class.attributes_with_defaults.include?(key.to_s)
    # Use the generated method so that single value assetions are single
    send(key)
  else
    raise ArgumentError, "Unknown attribute #{key}"
  end
end

def []=(key, value)
  raise ReadOnlyRecord if readonly?
  if assoc = association(key.to_sym)
    # This is for id attributes stored in the rdf graph.
    assoc.replace(value)
  elsif self.class.properties.key?(key.to_s)
    # The attribute is stored in the RDF graph for this object
    send(key.to_s + "=", value)
  else
    raise ArgumentError, "Unknown attribute #{key}"
  end
end

def attribute_method?(attr_name) # :nodoc:
  respond_to_without_attributes?(:attributes) && self.class.delegated_attributes.include?(attr_name)
end

def attribute_names
  self.class.attribute_names
end

def attributes
  attribute_names.each_with_object("id" => id) { |key, hash| hash[key] = self[key] }
end

def clear_changed_attributes
  Deprecation.warn ActiveFedora::Attributes, "#clear_changed_attributes is deprecated, use ActiveModel::Dirty#changes_applied instead."
  @previously_changed = changes
  clear_attribute_changes(changes.keys)
end

def clear_changed_attributes_or_changes_applied
  return changes_applied if
    method(:clear_changed_attributes).super_method.nil? ||
    method(:clear_changed_attributes).owner == ActiveFedora::Aggregation::ListSource
  Deprecation.warn self.class, "after_save callbacks to #clear_changed_attributes are deprecated. " /
                               "These calls will be removed in 14.0.0. If you are running Rails 6.0, " /
                               "it's likely your #clear_changed_attributes implementation is in " /
                               "conflict with new ActiveModel::Dirty behavior."
  clear_changed_attributes
end

def local_attributes
  self.class.local_attributes
end