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/* ============================================================
*
* This file is a part of the rekonq project
*
* Copyright (C) 2012 by Siteshwar Vashisht <siteshwar at gmail dot com>
* Copyright (C) 2011 by Andrea Diamantini <adjam7 at gmail dot 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) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* ============================================================ */


#ifndef OPERA_SYNC_HANDLER_H
#define OPERA_SYNC_HANDLER_H

#include <QWebPage>

// Local Includes
#include "synchandler.h"

// KDE Includes
#include <KUrl>
#include <KBookmarkGroup>
#include <KIO/Job>

// Qt Includes
#include <QtOAuth/QtOAuth>

// Forward Declarations
class QNetworkReply;
class BookmarkManager;
class QWebView;


class OperaSyncHandler : public SyncHandler
{
    Q_OBJECT

public:
    explicit OperaSyncHandler(QObject *parent = 0);

    void syncHistory();
    void syncBookmarks();
    void syncPasswords();

    void initialLoadAndCheck();

private Q_SLOTS:
    void loadFinished(bool);

    void fetchBookmarksDataSlot(KIO::Job*, QByteArray);
    void fetchBookmarksResultSlot(KJob*);

    void createBookmarkDataSlot(KIO::Job*, QByteArray);
    void createBookmarkResultSlot(KJob*);

    void createBookmarkFolderDataSlot(KIO::Job*, QByteArray);
    void createBookmarkFolderResultSlot(KJob*);

    void deleteResourceDataSlot(KIO::Job*, QByteArray);
    void deleteResourceResultSlot(KJob*);

Q_SIGNALS:
    void syncBookmarksFinished(bool);
    void syncHistoryFinished(bool);
    void syncPasswordsFinished(bool);

private:
    enum {SEND_CHANGES, RECEIVE_CHANGES} _mode;

    bool syncRelativeEnabled(bool);
    void startLogin();
    void getBookmarks();

    void handleBookmark(const QDomElement &item, KBookmarkGroup root);
    void handleBookmarkFolder(const QDomElement &item, KBookmarkGroup &root);
    void handleResource(const QDomNode &item, KBookmarkGroup &root);
    void handleResponse(const QDomNodeList &responseList, KBookmarkGroup &root);

    void handleLocalGroup(const KBookmarkGroup &root, const QDomElement &item, QString parentId);

    void addBookmarkOnServer(QString, QString, QString parent = QString());
    KJob *addBookmarkFolderOnServer(QString, QString parent = QString());
    void deleteResourceOnServer(QString id);

    static QString getUrlFromResourceProperties(const QDomElement &item);
    static QString getTitleFromResourceProperties(const QDomElement &item);
    static QString getIdFromResource(const QDomElement &item);
    static QString getChildString(const QDomNode &node, const QString &name);
    static QDomElement getChildElement(const QDomNode &node, const QString &name);

    static KBookmarkGroup findLocalGroup(const KBookmarkGroup &root, const QString &name);
    static KBookmark findLocalBookmark(const KBookmarkGroup &root, const KUrl &url);

    static QDomElement findOperaFolder(const QDomElement &root, const QString &name);
    static QDomElement findOperaBookmark(const QDomElement &root, const KUrl &url);

    void decreaseRequestCount();


    bool _doLogin;

    QWebPage _webPage;

    int _requestCount;

    bool _isSyncing;

    QOAuth::Interface _qoauth;

    QByteArray _requestToken, _requestTokenSecret;
    QByteArray _authToken, _authTokenSecret;

    QByteArray _xmlData;
    QMap<KJob*, QByteArray> _jobToResponseMap;
    QMap<KJob*, KBookmarkGroup> _jobToGroupMap;
};

#endif // OPERA_SYNC_HANDLER_H