// Aseprite
// Copyright (C) 2019-2025  Igara Studio S.A.
// Copyright (C) 2001-2018  David Capello
//
// This program is distributed under the terms of
// the End-User License Agreement for Aseprite.

#ifndef APP_CRASH_DATA_RECOVERY_H_INCLUDED
#define APP_CRASH_DATA_RECOVERY_H_INCLUDED
#pragma once

#include "app/crash/recovery_config.h"
#include "app/crash/session.h"
#include "base/disable_copying.h"
#include "obs/signal.h"

#include <atomic>
#include <mutex>
#include <thread>
#include <vector>

namespace app {
class Context;
namespace crash {
class BackupObserver;

class DataRecovery {
public:
  typedef std::vector<SessionPtr> Sessions;

  DataRecovery(Context* context);
  ~DataRecovery();

  // Launches the thread to search for sessions.
  void launchSearch();

  bool isSearching() const { return m_searching; }

  // Returns true if there is at least one sessions with sprites to
  // recover (i.e. a crashed session were changes weren't saved)
  bool hasRecoverySessions() const;

  Session* activeSession() { return m_inProgress.get(); }

  // Returns a copy of the list of sessions that can be recovered.
  Sessions sessions();

  bool isRunningSession(const SessionPtr& session) const;

  // Triggered in the UI-thread from the m_thread using an
  // ui::execute_from_ui_thread() when the list of sessions is ready
  // to be used.
  obs::signal<void()> SessionsListIsReady;

private:
  // Executed from m_thread to search for the list of sessions.
  void searchForSessions();

  std::string m_sessionsDir;
  mutable std::mutex m_sessionsMutex;
  std::thread m_thread;
  RecoveryConfig m_config;
  Sessions m_sessions;
  SessionPtr m_inProgress;
  BackupObserver* m_backup;
  std::atomic<bool> m_searching;

  DISABLE_COPYING(DataRecovery);
};

} // namespace crash
} // namespace app

#endif
