/***************************************************************************
 *   Copyright (C) 2014 by Frank Reininghaus <frank78ac@googlemail.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          *
 ***************************************************************************/

#include <KIO/FileSystemFreeSpaceJob>

#include "mountpointobserver.h"
#include "mountpointobservercache.h"

MountPointObserver::MountPointObserver(const QUrl& url, QObject* parent) :
    QObject(parent),
    m_url(url),
    m_referenceCount(0)
{
}

MountPointObserver* MountPointObserver::observerForUrl(const QUrl& url)
{
    MountPointObserver* observer = MountPointObserverCache::instance()->observerForUrl(url);
    return observer;
}

void MountPointObserver::update()
{
    if (m_referenceCount == 0) {
        delete this;
    } else {
        KIO::FileSystemFreeSpaceJob* job = KIO::fileSystemFreeSpace(m_url);
        connect(job, &KIO::FileSystemFreeSpaceJob::result, this, &MountPointObserver::freeSpaceResult);
    }
}

void MountPointObserver::freeSpaceResult(KIO::Job* job, KIO::filesize_t size, KIO::filesize_t available)
{
    if (!job->error()) {
        emit spaceInfoChanged(size, available);
    } else {
        emit spaceInfoChanged(0, 0);
    }
}