////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2019-2024 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// This file is part of Octave.
//
// Octave 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.
//
// Octave 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 Octave; see the file COPYING.  If not, see
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////

#if ! defined (octave_set_path_model_h)
#define octave_set_path_model_h 1

#include <QAbstractListModel>
#include <QFileInfo>
#include <QIcon>
#include <QList>
#include <QStringList>

#include "qt-interpreter-events.h"

OCTAVE_BEGIN_NAMESPACE(octave)

class set_path_model : public QAbstractListModel
{
  Q_OBJECT

public:

  set_path_model (QObject *p = nullptr);

  ~set_path_model () = default;

  void clear ();

  void add_dir (const QString& p);

  void rm_dir (const QModelIndexList& indices);

  void move_dir_up (const QModelIndexList& indices);

  void move_dir_down (const QModelIndexList& indices);

  void move_dir_top (const QModelIndexList& indices);

  void move_dir_bottom (const QModelIndexList& indices);

  std::string to_string ();

  // Overloaded Qt methods

  void model_to_path ();

  int rowCount (const QModelIndex& p = QModelIndex ()) const;

  QVariant data (const QModelIndex& idx, int role) const;

signals:

  void update_data_signal (const QStringList& dirs);

  void interpreter_event (const fcn_callback& fcn);
  void interpreter_event (const meth_callback& meth);

public slots:

  void path_to_model ();

  void save ();

  void revert ();

  void revert_last ();

private slots:

  void update_data (const QStringList& dirs);

private:

  QStringList m_dirs;

  QStringList m_orig_dirs;

  QStringList m_last_dirs;

  bool m_revertible;
};

OCTAVE_END_NAMESPACE(octave)

#endif