/***************************************************************************
 *   Copyright (C) 2008 by Oliver Groß                                     *
 *   z.o.gross@gmx.de                                                      *
 *                                                                         *
 *   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.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#include <QDir>
#include "ccrosspackage.h"
#include "cnonogram.h"
#include "ccrosspackagelistmodel.h"

namespace libqnono {
//public:
	CCrossPackageListModel::CCrossPackageListModel(QString dataPath, QString dataFilter, QObject * parent) : QAbstractItemModel(parent),
		m_DataPath(dataPath), m_DataFilter(dataFilter) {
		update();
	}
	
	CCrossPackageListModel::~CCrossPackageListModel() {
		foreach (CCrossPackage * i, m_PackageList)
			delete i;
	}
	
	void CCrossPackageListModel::update() {
		foreach (CCrossPackage * i, m_PackageList)
			delete i;
		
		m_PackageList.clear();
		
		CCrossPackage * newPackage;
		
		QDir workDir(m_DataPath);
		QStringList fileNames = workDir.entryList(QStringList(m_DataFilter), QDir::Files | QDir::NoDotAndDotDot, QDir::Name);
		foreach (QString fileName, fileNames) {
			newPackage = new CCrossPackage(workDir.filePath(fileName));
			newPackage->open();
			if (newPackage->readHeader())
				m_PackageList << newPackage;
			else
				delete newPackage;
			newPackage->close();
		}
		
		reset();
	}
	
	QModelIndex CCrossPackageListModel::index(int row, int column, const QModelIndex & /*parent*/) const {
		return (column > 0) || (row < 0) || (row >= m_PackageList.size()) ?
			QModelIndex() :
			createIndex(row, column, static_cast<void *>(m_PackageList[row]));
	}
	
	QVariant CCrossPackageListModel::data(const QModelIndex & index, int role) const {
		if (!index.isValid())
			return QVariant();
		
		if (role == Qt::DisplayRole)
			return static_cast<CCrossPackage *>(index.internalPointer())->name();
		else
			return QVariant();
	}
	
	int CCrossPackageListModel::rowCount(const QModelIndex & /*parent*/) const {
		return m_PackageList.size();
	}
	
	int CCrossPackageListModel::columnCount(const QModelIndex & /*parent*/) const {
		return 1;
	}
	
	QVariant CCrossPackageListModel::headerData(int /*section*/, Qt::Orientation /*orientation*/, int /*role*/) const {
		return QVariant();
	}
	
// 	Qt::ItemFlags CCrossPackageListModel::flags(const QModelIndex & index) const {
// 		return QAbstractItemModel::flags(index) | Qt::ItemIsEditable;
// 	}
	
	QModelIndex CCrossPackageListModel::parent(const QModelIndex &) const {
		return QModelIndex();
	}
	
	bool CCrossPackageListModel::hasChildren(const QModelIndex & parent) const {
		return !parent.isValid();
	}
}