/***************************************************************************
 *   Copyright (C) 2007 by Joris Guisson and Ivan Vasic                    *
 *   joris.guisson@gmail.com                                               *
 *   ivasic@gmail.com                                                      *
 *                                                                         *
 *   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 2 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, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
 ***************************************************************************/
#ifndef KTCHUNKDOWNLOADMODEL_H
#define KTCHUNKDOWNLOADMODEL_H

#include <QAbstractTableModel>
#include <interfaces/chunkdownloadinterface.h>


namespace bt
{
	class TorrentInterface;
}

namespace kt
{

	/**
		@author
	*/
	class ChunkDownloadModel : public QAbstractTableModel
	{			
		Q_OBJECT
	public:
		ChunkDownloadModel(QObject* parent);
		virtual ~ChunkDownloadModel();

		/// A peer has been added
		void downloadAdded(bt::ChunkDownloadInterface* cd);

		/// A download has been removed
		void downloadRemoved(bt::ChunkDownloadInterface* cd);
		
		/// change the current torrent
		void changeTC(bt::TorrentInterface* tc);
		
		/**
		 * Update the model
		 */
		void update();
		
		void clear();

		virtual int rowCount(const QModelIndex & parent) const;
		virtual int columnCount(const QModelIndex & parent) const;
		virtual QVariant headerData(int section, Qt::Orientation orientation,int role) const;
		virtual QVariant data(const QModelIndex & index,int role) const;
		virtual bool removeRows(int row,int count,const QModelIndex & parent);
		virtual bool insertRows(int row,int count,const QModelIndex & parent);
		virtual QModelIndex index(int row,int column,const QModelIndex & parent = QModelIndex()) const;
		
	public slots:
		void sort(int col, Qt::SortOrder order);
		
	signals:
		void sorted();
		
	public:
		struct Item
		{
			mutable bt::ChunkDownloadInterface::Stats stats;
			bt::ChunkDownloadInterface* cd;
			QString files;
			
			Item(bt::ChunkDownloadInterface* cd,const QString & files);
			
			bool changed(int col,bool & modified) const;
			QVariant data(int col) const;
			bool lessThan(int col,const Item* other) const;
		};
	private:
		QList<Item*> items;
		bt::TorrentInterface* tc;
		int sort_column;
		Qt::SortOrder sort_order;
	};

}

#endif
