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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <memory>
#include <vector>
#include "common/common_types.h"
#include "common/file_util.h"
#include "common/string_util.h"
#include "core/file_sys/archive_systemsavedata.h"
#include "core/file_sys/errors.h"
#include "core/file_sys/savedata_archive.h"
#include "core/hle/service/fs/archive.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
std::string GetSystemSaveDataPath(const std::string& mount_point, const Path& path) {
std::vector<u8> vec_data = path.AsBinary();
const u32* data = reinterpret_cast<const u32*>(vec_data.data());
u32 save_low = data[1];
u32 save_high = data[0];
return Common::StringFromFormat("%s%08X/%08X/", mount_point.c_str(), save_low, save_high);
}
std::string GetSystemSaveDataContainerPath(const std::string& mount_point) {
return Common::StringFromFormat("%sdata/%s/sysdata/", mount_point.c_str(), SYSTEM_ID);
}
Path ConstructSystemSaveDataBinaryPath(u32 high, u32 low) {
std::vector<u8> binary_path;
binary_path.reserve(8);
// Append each word byte by byte
// First is the high word
for (unsigned i = 0; i < 4; ++i)
binary_path.push_back((high >> (8 * i)) & 0xFF);
// Next is the low word
for (unsigned i = 0; i < 4; ++i)
binary_path.push_back((low >> (8 * i)) & 0xFF);
return {binary_path};
}
ArchiveFactory_SystemSaveData::ArchiveFactory_SystemSaveData(const std::string& nand_path)
: base_path(GetSystemSaveDataContainerPath(nand_path)) {}
ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SystemSaveData::Open(const Path& path) {
std::string fullpath = GetSystemSaveDataPath(base_path, path);
if (!FileUtil::Exists(fullpath)) {
// TODO(Subv): Check error code, this one is probably wrong
return ERR_NOT_FORMATTED;
}
auto archive = std::make_unique<SaveDataArchive>(fullpath);
return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive));
}
ResultCode ArchiveFactory_SystemSaveData::Format(const Path& path,
const FileSys::ArchiveFormatInfo& format_info) {
std::string fullpath = GetSystemSaveDataPath(base_path, path);
FileUtil::DeleteDirRecursively(fullpath);
FileUtil::CreateFullPath(fullpath);
return RESULT_SUCCESS;
}
ResultVal<ArchiveFormatInfo> ArchiveFactory_SystemSaveData::GetFormatInfo(const Path& path) const {
// TODO(Subv): Implement
LOG_ERROR(Service_FS, "Unimplemented GetFormatInfo archive %s", GetName().c_str());
return ResultCode(-1);
}
} // namespace FileSys
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