module ActiveFedora::Reflection::ClassMethods

def add_reflection(name, reflection)
  # FIXME this is where the problem with association_spec is caused (key is string now)
  self.reflections = self.reflections.merge(name => reflection)
end

def child_resource_reflections
  reflections.select { |_, reflection| reflection.kind_of?(AssociationReflection) && reflection.macro == :contains }
end

def create_reflection(macro, name, options, active_fedora)
  klass = case macro
    when :has_many, :belongs_to, :has_and_belongs_to_many, :contains, :directly_contains, :directly_contains_one, :indirectly_contains
      AssociationReflection
    when :rdf, :singular_rdf
      RDFPropertyReflection
  end
  reflection = klass.new(macro, name, options, active_fedora)
  add_reflection name, reflection
  reflection
end

def outgoing_reflections
  reflections.select { |_, reflection| reflection.kind_of? RDFPropertyReflection }
end

def reflect_on_all_autosave_associations
  reflections.values.select { |reflection| reflection.options[:autosave] }
end

def reflect_on_association(association)
  val = reflections[association].is_a?(AssociationReflection) ? reflections[association] : nil
  unless val
    # When a has_many is paired with a has_and_belongs_to_many the assocation will have a plural name
    association = association.to_s.pluralize.to_sym
    val = reflections[association].is_a?(AssociationReflection) ? reflections[association] : nil
  end
  val
end

def reflections
  read_inheritable_attribute(:reflections) || write_inheritable_attribute(:reflections, {})
end