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// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "core/core.h"
#include "core/file_sys/control_metadata.h"
#include "core/file_sys/errors.h"
#include "core/file_sys/patch_manager.h"
#include "core/hle/service/filesystem/save_data_controller.h"
#include "core/loader/loader.h"
namespace Service::FileSystem {
namespace {
// A default size for normal/journal save data size if application control metadata cannot be found.
// This should be large enough to satisfy even the most extreme requirements (~4.2GB)
constexpr u64 SufficientSaveDataSize = 0xF0000000;
FileSys::SaveDataSize GetDefaultSaveDataSize(Core::System& system, u64 program_id) {
const FileSys::PatchManager pm{program_id, system.GetFileSystemController(),
system.GetContentProvider()};
const auto metadata = pm.GetControlMetadata();
const auto& nacp = metadata.first;
if (nacp != nullptr) {
return {nacp->GetDefaultNormalSaveSize(), nacp->GetDefaultJournalSaveSize()};
}
return {SufficientSaveDataSize, SufficientSaveDataSize};
}
} // namespace
SaveDataController::SaveDataController(Core::System& system_,
std::shared_ptr<FileSys::SaveDataFactory> factory_)
: system{system_}, factory{std::move(factory_)} {}
SaveDataController::~SaveDataController() = default;
Result SaveDataController::CreateSaveData(FileSys::VirtualDir* out_save_data,
FileSys::SaveDataSpaceId space,
const FileSys::SaveDataAttribute& attribute) {
LOG_TRACE(Service_FS, "Creating Save Data for space_id={:01X}, save_struct={}", space,
attribute.DebugInfo());
auto save_data = factory->Create(space, attribute);
if (save_data == nullptr) {
return FileSys::ERROR_ENTITY_NOT_FOUND;
}
*out_save_data = save_data;
return ResultSuccess;
}
Result SaveDataController::OpenSaveData(FileSys::VirtualDir* out_save_data,
FileSys::SaveDataSpaceId space,
const FileSys::SaveDataAttribute& attribute) {
auto save_data = factory->Open(space, attribute);
if (save_data == nullptr) {
return FileSys::ERROR_ENTITY_NOT_FOUND;
}
*out_save_data = save_data;
return ResultSuccess;
}
Result SaveDataController::OpenSaveDataSpace(FileSys::VirtualDir* out_save_data_space,
FileSys::SaveDataSpaceId space) {
auto save_data_space = factory->GetSaveDataSpaceDirectory(space);
if (save_data_space == nullptr) {
return FileSys::ERROR_ENTITY_NOT_FOUND;
}
*out_save_data_space = save_data_space;
return ResultSuccess;
}
FileSys::SaveDataSize SaveDataController::ReadSaveDataSize(FileSys::SaveDataType type, u64 title_id,
u128 user_id) {
const auto value = factory->ReadSaveDataSize(type, title_id, user_id);
if (value.normal == 0 && value.journal == 0) {
const auto size = GetDefaultSaveDataSize(system, title_id);
factory->WriteSaveDataSize(type, title_id, user_id, size);
return size;
}
return value;
}
void SaveDataController::WriteSaveDataSize(FileSys::SaveDataType type, u64 title_id, u128 user_id,
FileSys::SaveDataSize new_value) {
factory->WriteSaveDataSize(type, title_id, user_id, new_value);
}
void SaveDataController::SetAutoCreate(bool state) {
factory->SetAutoCreate(state);
}
} // namespace Service::FileSystem
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