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// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
#include <filesystem>
#include "fs.h"
#include "common/fs/ryujinx_compat.h"
#include "common/fs/symlink.h"
#include "frontend_common/data_manager.h"
#include "qt_common/abstract/frontend.h"
#include "qt_common/qt_string_lookup.h"
namespace fs = std::filesystem;
namespace QtCommon::FS {
void LinkRyujinx(std::filesystem::path &from, std::filesystem::path &to)
{
std::error_code ec;
// "ignore" errors--if the dir fails to be deleted, error handling later will handle it
fs::remove_all(to, ec);
if (Common::FS::CreateSymlink(from, to)) {
QtCommon::Frontend::Information(tr("Linked Save Data"), tr("Save data has been linked."));
} else {
QtCommon::Frontend::Critical(
tr("Failed to link save data"),
tr("Could not link directory:\n\t%1\nTo:\n\t%2").arg(QString::fromStdString(from.string()), QString::fromStdString(to.string())));
}
}
bool CheckUnlink(const fs::path &eden_dir, const fs::path &ryu_dir)
{
bool eden_link = Common::FS::IsSymlink(eden_dir);
bool ryu_link = Common::FS::IsSymlink(ryu_dir);
if (!(eden_link || ryu_link))
return false;
auto result = QtCommon::Frontend::Warning(
tr("Already Linked"),
tr("This title is already linked to Ryujinx. Would you like to unlink it?"),
QtCommon::Frontend::StandardButton::Yes | QtCommon::Frontend::StandardButton::No);
if (result != QtCommon::Frontend::StandardButton::Yes)
return true;
fs::path linked;
fs::path orig;
if (eden_link) {
linked = eden_dir;
orig = ryu_dir;
} else {
linked = ryu_dir;
orig = eden_dir;
}
// first cleanup the symlink/junction,
try {
// NB: do NOT use remove_all, as Windows treats this as a remove_all to the target,
// NOT the junction
fs::remove(linked);
} catch (std::exception &e) {
QtCommon::Frontend::Critical(
tr("Failed to unlink old directory"),
tr("OS returned error: %1").arg(QString::fromStdString(e.what())));
return true;
}
// then COPY the other dir
try {
fs::copy(orig, linked, fs::copy_options::recursive);
} catch (std::exception &e) {
QtCommon::Frontend::Critical(
tr("Failed to copy save data"),
tr("OS returned error: %1").arg(QString::fromStdString(e.what())));
}
QtCommon::Frontend::Information(
tr("Unlink Successful"),
tr("Successfully unlinked Ryujinx save data. Save data has been kept intact."));
return true;
}
u64 GetRyujinxSaveID(const u64 &program_id)
{
auto path = Common::FS::GetKvdbPath();
std::vector<Common::FS::IMEN> imens;
Common::FS::IMENReadResult res = Common::FS::ReadKvdb(path, imens);
if (res == Common::FS::IMENReadResult::Success) {
// TODO: this can probably be done with std::find_if but I'm lazy
for (const Common::FS::IMEN &imen : imens) {
if (imen.title_id == program_id)
return imen.save_id;
}
QtCommon::Frontend::Critical(
tr("Could not find Ryujinx save data"),
StringLookup::Lookup(StringLookup::RyujinxNoSaveId).arg(program_id, 0, 16));
} else {
// TODO: make this long thing a function or something
QString caption = StringLookup::Lookup(
static_cast<StringLookup::StringKey>((int) res + (int) StringLookup::KvdbNonexistent));
QtCommon::Frontend::Critical(tr("Could not find Ryujinx save data"), caption);
}
return -1;
}
std::optional<std::pair<fs::path, fs::path> > GetEmuPaths(
const u64 program_id, const u64 save_id, const std::string &user_id)
{
fs::path ryu_dir = Common::FS::GetRyuSavePath(save_id);
if (user_id.empty())
return std::nullopt;
std::string hex_program = fmt::format("{:016X}", program_id);
fs::path eden_dir
= FrontendCommon::DataManager::GetDataDir(FrontendCommon::DataManager::DataDir::Saves,
user_id)
/ hex_program;
return std::make_pair(eden_dir, ryu_dir);
}
} // namespace QtCommon::FS
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