/*
 * Copyright (C) 2015-2016 Département de l'Instruction Publique (DIP-SEM)
 *
 * Copyright (C) 2013 Open Education Foundation
 *
 * Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
 * l'Education Numérique en Afrique (GIP ENA)
 *
 * This file is part of OpenBoard.
 *
 * OpenBoard 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, version 3 of the License,
 * with a specific linking exception for the OpenSSL project's
 * "OpenSSL" library (or with modified versions of it that use the
 * same license as the "OpenSSL" library).
 *
 * OpenBoard 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 OpenBoard. If not, see <http://www.gnu.org/licenses/>.
 */

#include <QDebug>
#include <QNetworkProxy>
#include <QNetworkDiskCache>

#include "core/UBSettings.h"

#include "UBDownloadThread.h"

#include "core/memcheck.h"

/**
 * \brief Constructor
 * @param parent as the parent object
 * @param name as the object name
 */
UBDownloadThread::UBDownloadThread(QObject *parent, const char *name):QThread(parent)
    , mbRun(false)
    ,mpReply(NULL)
{
    setObjectName(name);
}

/**
 * \brief Destructor
 */
UBDownloadThread::~UBDownloadThread()
{
    if(NULL != mpReply)
    {
        delete mpReply;
        mpReply = NULL;
    }
}

/**
 * \brief Run the thread
 */
void UBDownloadThread::run()
{
    qDebug() << mUrl;
    // We start the download
    QNetworkAccessManager* pNam = new QNetworkAccessManager();

    mpReply = pNam->get(QNetworkRequest(QUrl(mUrl)));
    qDebug() << " -- Http GET reply ---------------------- ";
    qDebug() << mpReply->readAll();
    qDebug() << " ---------------------------------------- ";

    connect(mpReply, SIGNAL(downloadProgress(qint64,qint64)), this, SLOT(onDownloadProgress(qint64,qint64)));
    connect(mpReply, SIGNAL(finished()), this, SLOT(onDownloadFinished()));

    while(mbRun)
    {
        // Wait here until the end of the download
        sleep(100);
    }

    disconnect(mpReply, SIGNAL(downloadProgress(qint64,qint64)), this, SLOT(onDownloadProgress(qint64,qint64)));
    disconnect(mpReply, SIGNAL(finished()), this, SLOT(onDownloadFinished()));
    if(NULL != mpReply)
    {
        delete mpReply;
        mpReply = NULL;
    }
}

/**
 * \brief Stop the current download
 */
void UBDownloadThread::stopDownload()
{
    mbRun = false;
}

/**
 * \brief Start the download
 */
void UBDownloadThread::startDownload(int id, QString url)
{
    mID = id;
    mUrl = url;
    mbRun = true;
    start();
}

/**
 * \brief Notify the download progression
 * @param received as the number of bytes received
 * @param total as the total number of bytes of the file
 */
void UBDownloadThread::onDownloadProgress(qint64 received, qint64 total)
{
    qDebug() << received << " on " << total;
    emit downloadProgress(mID, received, total);
}

/**
 * \brief Notify the end of the download
 */
void UBDownloadThread::onDownloadFinished()
{
    emit downloadFinised(mID);
}