#include "HL_Uuid.h"
#include <memory.h>

Uuid::Uuid()
{
#if defined(TARGET_WIN) || defined(TARGET_LINUX) || defined(TARGET_OSX)
  memset(&mUuid, 0, sizeof mUuid);
#endif
}

Uuid Uuid::generateOne()
{
  Uuid result;
#if defined(TARGET_LINUX) || defined(TARGET_OSX)
  uuid_generate(result.mUuid);
#endif
#if defined(TARGET_WIN)
  UuidCreate(&result.mUuid);
#endif

  return result;
}

Uuid Uuid::parse(const std::string &s)
{
  Uuid result;
#if defined(TARGET_LINUX) || defined(TARGET_OSX)
  uuid_parse(s.c_str(), result.mUuid);
#endif

#if defined(TARGET_WIN)
  UuidFromStringA((RPC_CSTR)s.c_str(), &result.mUuid);
#endif
  return result;
}

std::string Uuid::toString() const
{
  char buf[64];
#if defined(TARGET_LINUX) || defined(TARGET_OSX)
  uuid_unparse_lower(mUuid, buf);
#endif

#if defined(TARGET_WIN)
  RPC_CSTR s = nullptr;
  UuidToStringA(&mUuid, &s);
  if (s)
  {
    strcpy(buf, (const char*)s);
    RpcStringFreeA(&s);
    s = nullptr;
  }
#endif

  return buf;
}

bool Uuid::operator < (const Uuid& right) const
{
#if defined(TARGET_LINUX) || defined(TARGET_OSX)
  return memcmp(mUuid, right.mUuid, sizeof(mUuid)) < 0;
#endif

#if defined(TARGET_WIN)
  return memcmp(&mUuid, &right.mUuid, sizeof(mUuid)) < 0;
#endif
}