/**
 * Copyright (C) 2021 Saturneric <eric@bktus.com>
 *
 * This file is part of GpgFrontend.
 *
 * GpgFrontend is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * GpgFrontend is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
 *
 * The initial version of the source code is inherited from
 * the gpg4usb project, which is under GPL-3.0-or-later.
 *
 * All the source code of GpgFrontend was modified and released by
 * Saturneric <eric@bktus.com> starting on May 12, 2021.
 *
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 */

#pragma once

#include "core/GpgFrontendCore.h"
#include "core/function/SecureMemoryAllocator.h"
#include "core/model/DataObject.h"

namespace GpgFrontend::Thread {

class TaskRunner;

class GPGFRONTEND_CORE_EXPORT Task : public QObject, public QRunnable {
  Q_OBJECT
 public:
  friend class TaskRunner;

  using TaskRunnable = std::function<int(DataObjectPtr)>;        ///<
  using TaskCallback = std::function<void(int, DataObjectPtr)>;  ///<
  using TaskTrigger = std::function<void()>;

  /**
   * @brief Construct a new Task object
   *
   */
  explicit Task(QString name);

  /**
   * @brief Construct a new Task object
   *
   * @param callback The callback function to be executed.
   */
  explicit Task(TaskRunnable runnable, QString name,
                DataObjectPtr data_object = nullptr);

  /**
   * @brief Construct a new Task object
   *
   * @param runnable
   */
  explicit Task(TaskRunnable runnable, QString name, DataObjectPtr data,
                TaskCallback callback);

  ~Task() override;

  [[nodiscard]] auto GetUUID() const -> QString;

  [[nodiscard]] auto GetFullID() const -> QString;

  void HoldOnLifeCycle(bool hold_on);

  virtual void Run();

 public slots:
  void SafelyRun();

 signals:
  void SignalRun();

  void SignalTaskShouldEnd(int rtn);

  void SignalTaskEnd();

 protected:
  void SetRTN(int rtn);

 private:
  class Impl;
  SecureUniquePtr<Impl> p_;

  void run() override;
};
}  // namespace GpgFrontend::Thread