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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
#include <deque>
#include <mutex>
#include <string>
#include <string_view>
#include <fmt/format.h>
#include "core/hle/service/ipc_helpers.h"
#include "core/hle/service/service.h"
namespace Service {
// Prefix of placeholder interfaces for Switch 2-only IPC. ReportUnimplementedFunction answers
// every call on such an interface with an empty success, so boot can go on while the log shows
// which commands are used.
inline constexpr std::string_view Nx2StubPrefix = "nx2:";
class INx2StubInterface final : public ServiceFramework<INx2StubInterface> {
public:
explicit INx2StubInterface(Core::System& system_, const char* name)
: ServiceFramework{system_, name} {}
// Names must outlive the interface, so they are interned here.
static const char* InternName(std::string name) {
static std::mutex mutex;
static std::deque<std::string> names;
std::scoped_lock lk{mutex};
for (const auto& n : names) {
if (n == name) {
return n.c_str();
}
}
return names.emplace_back(std::move(name)).c_str();
}
};
// Handler for an unknown Switch 2 command that returns an interface: hands back a stub named
// after the owning service and the command id.
inline void ReturnNx2StubInterface(Core::System& system, HLERequestContext& ctx,
std::string_view owner) {
const char* name =
INx2StubInterface::InternName(fmt::format("{}{}::{}", Nx2StubPrefix, owner, ctx.GetCommand()));
LOG_WARNING(Service, "(STUBBED) Switch 2 {}::{} -> stub interface {}", owner, ctx.GetCommand(),
name);
IPC::ResponseBuilder rb{ctx, 2, 0, 1};
rb.Push(ResultSuccess);
rb.PushIpcInterface<INx2StubInterface>(ctx, system, name);
}
} // namespace Service
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