// vim:fileencoding=utf-8:foldmethod=marker

#ifndef UUID_H
#define UUID_H

#include "../common/aliases/aliases.h"
#include "../common/platform/platform.h"
#include "../base/strings/str8/str8.h"

#ifdef WAPP_PLATFORM_CPP
BEGIN_C_LINKAGE
#endif // !WAPP_PLATFORM_CPP

#define UUID_BUF_LENGTH 48
#define WAPP_UUID_SPEC WAPP_STR8_SPEC
#define wapp_uuid_varg(WUUID) wapp_str8_varg((WUUID).uuid)

typedef struct wapp_uuid WUUID;
struct wapp_uuid {
  Str8 uuid;
};

#define wapp_uuid_gen_uuid4() *(wapp_uuid_init_uuid4(&wapp_uuid_create()))

/* Low level UUID API */

#define wapp_uuid_create() ((WUUID){.uuid = wapp_str8_buf(UUID_BUF_LENGTH)})

// Just returns the same pointer that was passed in with the UUID initialised.
// Fails when passed a NULL pointer.
WUUID *wapp_uuid_init_uuid4(WUUID *uuid);

#ifdef WAPP_PLATFORM_CPP
END_C_LINKAGE
#endif // !WAPP_PLATFORM_CPP

#endif // !UUID_H