#include "KeepAlivePduSerializer.h"

KeepAlivePduSerializer::KeepAlivePduSerializer(PduConfig &conf, cfdp::FileSize &progress)
    : FileDirectiveSerializer(conf, cfdp::FileDirectives::KEEP_ALIVE, 4), progress(progress) {
  updateDirectiveFieldLen();
}

size_t KeepAlivePduSerializer::getSerializedSize() const {
  return FileDirectiveSerializer::getWholePduSize();
}

void KeepAlivePduSerializer::updateDirectiveFieldLen() {
  if (this->getLargeFileFlag()) {
    this->setDirectiveDataFieldLen(8);
  }
}

ReturnValue_t KeepAlivePduSerializer::serialize(uint8_t **buffer, size_t *size, size_t maxSize,
                                                Endianness streamEndianness) const {
  ReturnValue_t result =
      FileDirectiveSerializer::serialize(buffer, size, maxSize, streamEndianness);
  if (result != returnvalue::OK) {
    return result;
  }
  return progress.serialize(this->getLargeFileFlag(), buffer, size, maxSize, streamEndianness);
}