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#pragma once
#include <cstdint>
#include <fstream>
#include <string>
#include <vector>
#if (__cplusplus < 201703L)
#include <experimental/filesystem>
namespace fs = std::experimental::filesystem;
#else
#include <filesystem>
namespace fs = std::filesystem;
#endif
enum class NarcError
{
None,
InvalidInputFile,
InvalidHeaderId,
InvalidByteOrderMark,
InvalidVersion,
InvalidHeaderSize,
InvalidChunkCount,
InvalidFileAllocationTableId,
InvalidFileAllocationTableReserved,
InvalidFileNameTableId,
InvalidFileNameTableEntryId,
InvalidFileImagesId,
InvalidOutputFile
};
struct Header
{
uint32_t Id;
uint16_t ByteOrderMark;
uint16_t Version;
uint32_t FileSize;
uint16_t ChunkSize;
uint16_t ChunkCount;
};
struct FileAllocationTable
{
uint32_t Id;
uint32_t ChunkSize;
uint16_t FileCount;
uint16_t Reserved;
};
struct FileAllocationTableEntry
{
uint32_t Start;
uint32_t End;
};
struct FileNameTable
{
uint32_t Id;
uint32_t ChunkSize;
};
struct FileNameTableEntry
{
uint32_t Offset;
uint16_t FirstFileId;
uint16_t Utility;
};
struct FileImages
{
uint32_t Id;
uint32_t ChunkSize;
};
class Narc
{
public:
NarcError GetError() const;
bool Pack(const fs::path& fileName, const fs::path& directory);
bool Unpack(const fs::path& fileName, const fs::path& directory);
private:
NarcError error = NarcError::None;
void AlignDword(std::ofstream& ofs, uint8_t paddingChar);
bool Cleanup(std::ifstream& ifs, const NarcError& e);
bool Cleanup(std::ofstream& ofs, const NarcError& e);
std::vector<fs::directory_entry> OrderedDirectoryIterator(const fs::path& path, bool recursive) const;
};
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