RolesBitmaskSerializerSupport

roles_bitmask_serializer_support.rb

module RolesBitmaskSerializerSupport
  extend ActiveSupport::Concern

  RolesBitmaskSerializer = GamesBox::Serializers::RolesBitmaskSerializer

  class_methods do
    
    def serialize_as_roles_bitmask(deserialized_attr, serialized_attr)
      deser_setter_name = "#{deserialized_attr}=".to_sym
      ser_setter_name = "#{serialized_attr}=".to_sym
      get_deser = -> () { self.send(deserialized_attr) }
      set_deser = -> (*attrs) { self.send(deser_setter_name, *attrs)
      get_ser = -> () { self.send(serialized_attr) }
      set_ser = -> (*attrs) { self.send(ser_setter_name, *attrs)

      after_initialize { set_deser(RolesBitmaskSerializer.load(get_ser), bypass_sync: true) }

      define_method ser_setter_name do |roles_bitmask, **options|
        super(roles_bitmask)
        set_deser(RolesBitmaskSerializer.load(self.roles_bitmask), bypass_sync: true) unless options[:bypass_sync]
      end

      attr_accessor deserialized_attr

      define_method deser_setter_name do |roles, **options|
        super(roles)
        set_ser(RolesBitmaskSerializer.dump(self.roles), bypass_sync: true) unless options[:bypass_sync]
      end

      define_method "add_#{deserialized_attr}" do |role|
        set_deser(get_deser + [role])
      end

      define_method "remove_#{deserialized_attr}" do |role|
        set_deser(get_deser - [role])
      end

    end
  
  end
end

Not tested in ANY way.
Rejected as to complicated and hard to read in favor of less generic code (deserialized_attr fixed as :roles, serialized_attr fixed as :roles_bitmask).