/***

    Olive - Non-Linear Video Editor
    Copyright (C) 2019  Olive Team

    This program 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.

    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

***/

#ifndef PROJECTMODEL_H
#define PROJECTMODEL_H

#include <QAbstractItemModel>

#include "project/media.h"

class ProjectModel : public QAbstractItemModel
{
  Q_OBJECT
public:
  ProjectModel(QObject* parent = nullptr);
  ~ProjectModel() override;

  void make_root();
  void destroy_root();
  void clear();
  Media* get_root();
  QVariant data(const QModelIndex &index, int role) const override;
  Qt::ItemFlags flags(const QModelIndex &index) const override;
  QVariant headerData(int section, Qt::Orientation orientation,
                      int role = Qt::DisplayRole) const override;
  QModelIndex index(int row, int column,
                    const QModelIndex &parent = QModelIndex()) const override;
  QModelIndex create_index(int arow, int acolumn, void *adata);
  QModelIndex parent(const QModelIndex &index) const override;
  bool canFetchMore(const QModelIndex &parent) const override;
  bool hasChildren(const QModelIndex &parent = QModelIndex()) const override;
  bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override;
  int rowCount(const QModelIndex &parent = QModelIndex()) const override;
  int columnCount(const QModelIndex &parent = QModelIndex()) const override;
  Media* getItem(const QModelIndex &index) const;

  void appendChild(Media* parent, Media* child);
  void moveChild(Media* child, Media* to);
  void removeChild(Media* parent, Media* m);
  Media* child(int i, Media* parent = nullptr);
  int childCount(Media* parent = nullptr);
  void set_icon(Media* m, const QIcon &ico);

private:
  Media* root_item;
};

namespace olive {
extern ProjectModel project_model;
}

#endif // PROJECTMODEL_H