////////////////////////////////
//~ Resource types

#define RES_ResourceNameLenMax 256

Struct(RES_Resource)
{
    String _data;
    b32 _exists;
#if RESOURCES_EMBEDDED
    String _name;
#else
    P_File _file;
    P_FileMap _file_map;
    u8 _name_text[RES_ResourceNameLenMax];
    u8 _name_len;
#endif
};

////////////////////////////////
//~ Shared state

Struct(RES_SharedState)
{
    Arena *arena;
#if RESOURCES_EMBEDDED
    TAR_Archive archive;
#endif
};

extern RES_SharedState RES_shared_state;

////////////////////////////////
//~ Startup

Struct(RES_StartupReceipt) { i32 _; };
RES_StartupReceipt RES_Startup(void);

////////////////////////////////
//~ Open / close

RES_Resource RES_OpenResource(String name);

#if RESOURCES_EMBEDDED
# define RES_CloseResource(res_ptr) (MaybeUnused)res_ptr
#else
void RES_CloseResource(RES_Resource *res_ptr);
#endif

////////////////////////////////
//~ Resource data operations

#define RES_GetResourceData(res_ptr) (res_ptr)->_data

#define RES_ResourceExists(res_ptr) (res_ptr)->_exists

#if RESOURCES_EMBEDDED
# define RES_GetResourceName(res_ptr) (res_ptr)->_name
#else
# define RES_GetResourceName(res_ptr) STRING((res_ptr)->_name_len, (res_ptr)->_name_text)
#endif