// This file is part of RSS Guard.
//
// Copyright (C) 2011-2016 by Martin Rotter <rotter.martinos@gmail.com>
//
// RSS Guard 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 3 of the License, or
// (at your option) any later version.
//
// RSS Guard 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 RSS Guard. If not, see <http://www.gnu.org/licenses/>.

#ifndef STANDARDSERVICEROOT_H
#define STANDARDSERVICEROOT_H

#include "services/abstract/serviceroot.h"

#include <QCoreApplication>
#include <QPair>


class RecycleBin;
class StandardCategory;
class StandardFeed;
class FeedsImportExportModel;
class QMenu;

class StandardServiceRoot : public ServiceRoot {
    Q_OBJECT

  public:
    explicit StandardServiceRoot(RootItem *parent = NULL);
    virtual ~StandardServiceRoot();

    // Start/stop root.
    void start(bool freshly_activated);
    void stop();

    QString code() const;

    bool canBeEdited() const;
    bool canBeDeleted() const;
    bool deleteViaGui();

    bool markAsReadUnread(ReadStatus status);

    bool supportsFeedAdding() const;
    bool supportsCategoryAdding() const;

    QVariant data(int column, int role) const;
    Qt::ItemFlags additionalFlags() const;

    // Access to recycle bin.
    RecycleBin *recycleBin() const;

    // Returns menu to be shown in "Services -> service" menu.
    QList<QAction*> serviceMenu();

    // Returns context specific menu actions for given feed.
    QList<QAction*> getContextMenuForFeed(StandardFeed *feed);

    // Takes structure residing under given root item and adds feeds/categories from
    // it to active structure.
    // NOTE: This is used for import/export of the model.
    bool mergeImportExportModel(FeedsImportExportModel *model, RootItem *target_root_node, QString &output_message);

    bool markFeedsReadUnread(QList<Feed*> items, ReadStatus read);
    bool cleanFeeds(QList<Feed*> items, bool clean_read_only);

    void loadFromDatabase();
    void checkArgumentForFeedAdding(const QString &argument);

  public slots:
    void addNewFeed(const QString &url = QString());
    void addNewCategory();
    void importFeeds();
    void exportFeeds();

  private:
    QString processFeedUrl(const QString &feed_url);
    void checkArgumentsForFeedAdding();

    RecycleBin *m_recycleBin;
    QAction *m_actionExportFeeds;
    QAction *m_actionImportFeeds;
    QList<QAction*> m_serviceMenu;
    QList<QAction*> m_feedContextMenu;
    QAction *m_actionFeedFetchMetadata;
};

#endif // STANDARDSERVICEROOT_H