#ifndef UUID_H
#define UUID_H

#include "../common/aliases/aliases.h"
#include "../core/strings/str8/str8.h"

#ifdef __cplusplus
BEGIN_C_LINKAGE
#endif // __cplusplus

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

typedef struct uuid UUID;
struct uuid {
  Str8 uuid;
};

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

/* Low level UUID API */

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

// Just returns the same pointer that was passed in with the UUID initialised.
// If the pointer is NULL, it skips initialisation.
UUID *wapp_uuid_init_uuid4(UUID *uuid);

#ifdef __cplusplus
END_C_LINKAGE
#endif // __cplusplus

#endif // !UUID_H