class Protobuf::Field::BytesField

def self.default
  ''
end

def acceptable?(val)
  val.nil? || val.is_a?(String) || val.is_a?(Symbol) || val.is_a?(::Protobuf::Message)
end

def decode(bytes)
  bytes_to_decode = bytes.dup
  bytes_to_decode.force_encoding(::Protobuf::Field::BytesField::BYTES_ENCODING)
  bytes_to_decode
end

def define_setter
  field = self
  message_class.class_eval do
    define_method(field.setter) do |val|
      begin
        field.warn_if_deprecated
        val = "#{val}" if val.is_a?(Symbol)
        if val.nil?
          @values.delete(field.name)
        elsif field.acceptable?(val)
          @values[field.name] = val.dup
        else
          raise TypeError, "Unacceptable value #{val} for field #{field.name} of type #{field.type_class}"
        end
      rescue NoMethodError => ex
        ::Protobuf::Logger.error { ex.message }
        ::Protobuf::Logger.error { ex.backtrace.join("\n") }
        raise TypeError, "Got NoMethodError attempting to set #{val} for field #{field.name} of type #{field.type_class}: #{ex.message}"
      end
    end
  end
end

def encode(value)
  value_to_encode = value.dup
  value_to_encode = value.encode if value.is_a?(::Protobuf::Message)
  value_to_encode.force_encoding(::Protobuf::Field::BytesField::BYTES_ENCODING)
  string_size = ::Protobuf::Field::VarintField.encode(value_to_encode.size)
  string_size << value_to_encode
end

def wire_type
  ::Protobuf::WireType::LENGTH_DELIMITED
end