dolphin-emulator/Source/Core/Common/FilesystemWatcher.h

// Copyright 2025 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

#pragma once

#include <map>
#include <memory>
#include <string>
#include <string_view>

namespace wtr
{
inline namespace watcher
{
class watch;
}
}  // namespace wtr

namespace Common
{
// A class that can watch a path and receive callbacks
// when files or directories underneath that path receive events
class FilesystemWatcher
{
public:
  FilesystemWatcher();
  virtual ~FilesystemWatcher();

  void Watch(const std::string& path);
  void Unwatch(const std::string& path);

private:
  // A new file or folder was added to one of the watched paths
  virtual void PathAdded(std::string_view path) {}

  // A file or folder was modified in one of the watched paths
  virtual void PathModified(std::string_view path) {}

  // A file or folder was renamed in one of the watched paths
  virtual void PathRenamed(std::string_view old_path, std::string_view new_path) {}

  // A file or folder was deleted in one of the watched paths
  virtual void PathDeleted(std::string_view path) {}

  std::map<std::string, std::unique_ptr<wtr::watch>> m_watched_paths;
};
}  // namespace Common