#if !defined(DN_BASE_CONVERT_H)
#define DN_BASE_CONVERT_H

struct DN_CVTU64Str8
{
  char  data[27 + 1]; // NOTE(dn): 27 is the maximum size of DN_U64 including a separator
  DN_U8 size;
};

enum DN_CVTU64ByteSizeType
{
  DN_CVTU64ByteSizeType_B,
  DN_CVTU64ByteSizeType_KiB,
  DN_CVTU64ByteSizeType_MiB,
  DN_CVTU64ByteSizeType_GiB,
  DN_CVTU64ByteSizeType_TiB,
  DN_CVTU64ByteSizeType_Count,
  DN_CVTU64ByteSizeType_Auto,
};

struct DN_CVTU64ByteSize
{
  DN_CVTU64ByteSizeType type;
  DN_Str8               suffix; // "KiB", "MiB", "GiB" .. e.t.c
  DN_F64                bytes;
};

struct DN_CVTU64HexStr8
{
  char  data[2 /*0x*/ + 16 /*hex*/ + 1 /*null-terminator*/];
  DN_U8 size;
};

typedef DN_U32 DN_CVTHexU64Str8Flags;
enum DN_CVTHexU64Str8Flags_
{
  DN_CVTHexU64Str8Flags_Nil          = 0,
  DN_CVTHexU64Str8Flags_0xPrefix     = 1 << 0, /// Add the '0x' prefix from the string
  DN_CVTHexU64Str8Flags_UppercaseHex = 1 << 1, /// Use uppercase ascii characters for hex
};

typedef DN_U32 DN_CVTU64AgeUnit;
enum DN_CVTU64AgeUnit_
{
    DN_CVTU64AgeUnit_Sec  = 1 << 0,
    DN_CVTU64AgeUnit_Min  = 1 << 1,
    DN_CVTU64AgeUnit_Hr   = 1 << 2,
    DN_CVTU64AgeUnit_Day  = 1 << 3,
    DN_CVTU64AgeUnit_Week = 1 << 4,
    DN_CVTU64AgeUnit_Year = 1 << 5,
    DN_CVTU64AgeUnit_HMS  = DN_CVTU64AgeUnit_Sec | DN_CVTU64AgeUnit_Min | DN_CVTU64AgeUnit_Hr,
    DN_CVTU64AgeUnit_All  = DN_CVTU64AgeUnit_HMS | DN_CVTU64AgeUnit_Day | DN_CVTU64AgeUnit_Week | DN_CVTU64AgeUnit_Year,
};

DN_API int                 DN_CVT_FmtBuffer3DotTruncate                (char *buffer, int size, DN_FMT_ATTRIB char const *fmt, ...);
DN_API DN_CVTU64Str8       DN_CVT_U64ToStr8                            (DN_U64 val, char separator);
DN_API DN_CVTU64ByteSize   DN_CVT_U64ToByteSize                        (DN_U64 bytes, DN_CVTU64ByteSizeType type);
DN_API DN_Str8             DN_CVT_U64ToByteSizeStr8                    (DN_Arena *arena, DN_U64 bytes, DN_CVTU64ByteSizeType desired_type);
DN_API DN_Str8             DN_CVT_U64ByteSizeTypeString                (DN_CVTU64ByteSizeType type);
DN_API DN_Str8             DN_CVT_U64ToAge                             (DN_Arena *arena, DN_U64 age_s, DN_CVTU64AgeUnit unit);
DN_API DN_Str8             DN_CVT_F64ToAge                             (DN_Arena *arena, DN_F64 age_s, DN_CVTU64AgeUnit unit);

DN_API DN_U64              DN_CVT_HexToU64                             (DN_Str8 hex);
DN_API DN_Str8             DN_CVT_U64ToHex                             (DN_Arena *arena, DN_U64 number, DN_CVTHexU64Str8Flags flags);
DN_API DN_CVTU64HexStr8    DN_CVT_U64ToHexStr8                         (DN_U64 number, DN_U32 flags);

DN_API bool                DN_CVT_BytesToHexPtr                        (void const *src, DN_USize src_size, char *dest, DN_USize dest_size);
DN_API DN_Str8             DN_CVT_BytesToHex                           (DN_Arena *arena, void const *src, DN_USize size);
#define                    DN_CVT_BytesToHexFromTLS(...)               DN_CVT_BytesToHex(DN_OS_TLSTopArena(), __VA_ARGS__)

DN_API DN_USize            DN_CVT_HexToBytesPtrUnchecked               (DN_Str8 hex, void *dest, DN_USize dest_size);
DN_API DN_USize            DN_CVT_HexToBytesPtr                        (DN_Str8 hex, void *dest, DN_USize dest_size);
DN_API DN_Str8             DN_CVT_HexToBytesUnchecked                  (DN_Arena *arena, DN_Str8 hex);
#define                    DN_CVT_HexToBytesUncheckedFromTLS(...)      DN_CVT_HexToBytesUnchecked(DN_OS_TLSTopArena(), __VA_ARGS__)
DN_API DN_Str8             DN_CVT_HexToBytes                           (DN_Arena *arena, DN_Str8 hex);
#define                    DN_CVT_HexToBytesFromTLS(...)               DN_CVT_HexToBytes(DN_OS_TLSTopArena(), __VA_ARGS__)
#endif // defined(DN_BASE_CONVERT_H)