/**
 * 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
 *
 */

#ifndef GPGFRONTEND_ZH_CN_TS_GPGCOMMANDEXECUTOR_H
#define GPGFRONTEND_ZH_CN_TS_GPGCOMMANDEXECUTOR_H

#include <initializer_list>
#ifndef WINDOWS
#include <boost/process.hpp>
#endif

#include "core/GpgContext.h"
#include "core/GpgFunctionObject.h"
#include "core/thread/Task.h"

namespace GpgFrontend {

using GpgCommandExecutorCallback =
    std::function<void(int, std::string, std::string)>;
using GpgCommandExecutorInteractor = std::function<void(QProcess *)>;

/**
 * @brief Extra commands related to GPG
 *
 */
class GPGFRONTEND_CORE_EXPORT GpgCommandExecutor
    : public SingletonFunctionObject<GpgCommandExecutor> {
 public:
  struct ExecuteContext {
    const std::string cmd;
    const std::vector<std::string> arguments;
    const GpgCommandExecutorCallback callback;
    const GpgCommandExecutorInteractor interact_func;

    ExecuteContext(
        std::string cmd, std::vector<std::string> arguments,
        GpgCommandExecutorCallback callback = [](int, std::string,
                                                 std::string) {},
        GpgCommandExecutorInteractor interact_func = [](QProcess *) {})
        : cmd(cmd),
          arguments(arguments),
          callback(callback),
          interact_func(interact_func) {}
  };

  using ExecuteContexts = std::vector<ExecuteContext>;

  /**
   * @brief Construct a new Gpg Command Executor object
   *
   * @param channel Corresponding context
   */
  explicit GpgCommandExecutor(
      int channel = SingletonFunctionObject::GetDefaultChannel());

  /**
   * @brief Excuting a command
   *
   * @param arguments Command parameters
   * @param interact_func Command answering function
   */
  void ExecuteSync(ExecuteContext);

  void ExecuteConcurrentlyAsync(ExecuteContexts);

  void ExecuteConcurrentlySync(ExecuteContexts);

 private:
  GpgContext &ctx_ = GpgContext::GetInstance(
      SingletonFunctionObject::GetChannel());  ///< Corresponding context

  Thread::Task *build_task(const ExecuteContext &);
};

}  // namespace GpgFrontend

#endif  // GPGFRONTEND_ZH_CN_TS_GPGCOMMANDEXECUTOR_H