class Protobuf::Field::BytesField

def self.default
  ''
end

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

def coerce!(value)
  case value
  when String, Symbol
    "#{value}"
  when NilClass
    nil
  when ::Protobuf::Message
    value.dup
  else
    fail TypeError, "Unacceptable value #{value} for field #{name} of type #{type_class}"
  end
end

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

def encode(value)
  if value.is_a?(::Protobuf::Message)
    value_to_encode = value.encode
  else
    value_to_encode = value.dup
  end
  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