/*
 Copyright (C) 2010-2017 Kristian Duske

 This file is part of TrenchBroom.

 TrenchBroom 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.

 TrenchBroom 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 TrenchBroom. If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include "NotifierConnection.h"

#include <memory>
#include <string>
#include <vector>

#include <QWidget>

class QLineEdit;
class QListWidget;
class QWidget;
class QAbstractButton;

namespace TrenchBroom {
namespace IO {
class Path;
}

namespace View {
class MapDocument;

class ModEditor : public QWidget {
  Q_OBJECT
private:
  std::weak_ptr<MapDocument> m_document;

  QListWidget* m_availableModList;
  QListWidget* m_enabledModList;
  QLineEdit* m_filterBox;
  QAbstractButton* m_addModsButton;
  QAbstractButton* m_removeModsButton;
  QAbstractButton* m_moveModUpButton;
  QAbstractButton* m_moveModDownButton;

  std::vector<std::string> m_availableMods;

  NotifierConnection m_notifierConnection;

public:
  explicit ModEditor(std::weak_ptr<MapDocument> document, QWidget* parent = nullptr);

private:
  void createGui();
private slots:
  void updateButtons();

private:
  void connectObservers();

  void documentWasNewed(MapDocument* document);
  void documentWasLoaded(MapDocument* document);
  void modsDidChange();
  void preferenceDidChange(const IO::Path& path);

  void updateAvailableMods();
  void updateMods();

  void addModClicked();
  void removeModClicked();
  void moveModUpClicked();
  void moveModDownClicked();
  bool canEnableAddButton() const;
  bool canEnableRemoveButton() const;
  bool canEnableMoveUpButton() const;
  bool canEnableMoveDownButton() const;
  void filterBoxChanged();
};
} // namespace View
} // namespace TrenchBroom
