/***************************************************************************
 *   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 "qtransferlistmodel.h"

namespace qftrans {
	QTransferListModel::QTransferListModel(QTransferDataList * data, QObject * parent) : QAbstractListModel(parent), m_Data(data) {
	}
	
	QTransferListModel::~QTransferListModel() {
	}
	
	int QTransferListModel::rowCount(const QModelIndex & /*parent*/) const {
		if (m_Data)
			return m_Data->size();
		else
			return 0;
	}
	
	QVariant QTransferListModel::data(const QModelIndex & index, int role) const {
		if (role != Qt::DisplayRole)
			return QVariant();
		
		TransferData * data = static_cast<TransferData *>(index.internalPointer());
		
		if (!data)
			return QVariant();
		
		QString status;
		
		switch (data->status) {
		case TS_SUSPENDED:
			status = tr("suspended");
			break;
		case TS_PENDING:
			status = tr("pending");
			break;
		case TS_ANNOUNCING:
			status = tr("announcing to peer");
			break;
		case TS_WAITING:
			status = tr("waiting");
			break;
		case TS_TRANSFERING:
			status = data->localFile ?  tr("Sending") : tr("Recieving");
			break;
		case TS_CLOSING:
			status = tr("closing down");
			break;
		case TS_FINISHED:
			status = (data->transfered == data->size) ? tr("finished") : tr("canceled");
			break;
		default:
			status = tr("unknown status");
			break;
		}
		
		QString size;
		unsigned int fancySize = data->size;
		unsigned int siCount = 0;
		
		while (fancySize > 1000) {
			fancySize /= 1000;
			siCount++;
		}
		
		size = QString::number(fancySize);
		
		switch (siCount) {
		case 0:
			break;
		case 1:
			size += 'K';
			break;
		case 2:
			size += 'M';
			break;
		case 3:
			size += 'G';
			break;
		default:
			size += "*10^" + QString::number(siCount);
			break;
		}
		
		size += 'B';
		
		return (data->localFile ? "out #" : "in #") + QString::number(index.row()) + " [" + status + "] (" +
			QString::number((unsigned int)((100.0 * data->transfered) / data->size)) + "%) " +
			data->fileName + " (size: " + size + ")";
	}
	
	QModelIndex QTransferListModel::index (int row, int column, const QModelIndex & /*parent*/) const {
		return createIndex(row, column, m_Data->at(row));
	}
	
	void QTransferListModel::updateEntry(TransferData * /*entry*/) {
		// TODO proper tranfer entry update
		emit layoutChanged();
	}
}