/*
*  Copyright 2020  Michail Vourlakos <mvourlakos@gmail.com>
*
*  This file is part of Latte-Dock
*
*  Latte-Dock 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.
*
*  Latte-Dock 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 LAYOUTSSTORAGE_H
#define LAYOUTSSTORAGE_H

// local
#include "../data/appletdata.h"

// Qt
#include <QTemporaryDir>

// KDE
#include <KConfigGroup>

// Plasma
#include <Plasma/Applet>
#include <Plasma/Containment>

namespace Latte {
namespace Layout {
class GenericLayout;
struct ViewData;
}
}

namespace Latte {
namespace Layouts {

struct SubContaimentIdentityData
{
    QString cfgGroup;
    QString cfgProperty;
};

struct ViewDelayedCreationData
{
    Plasma::Containment *containment{nullptr};
    bool forceOnPrimary{false};
    int explicitScreen{-1};
    bool reactToScreenChange{false};
};

class Storage
{

public:
    static Storage *self();
    ~Storage();

    static const int IDNULL;
    static const int IDBASE;

    bool isWritable(const Layout::GenericLayout *layout) const;
    bool isLatteContainment(Plasma::Containment *containment) const;
    bool isLatteContainment(const KConfigGroup &group) const;
    bool isBroken(const Layout::GenericLayout *layout, QStringList &errors) const;
    bool isSubContainment(const Layout::GenericLayout *layout, const Plasma::Applet *applet) const;

    int subContainmentId(const KConfigGroup &appletGroup) const;

    Plasma::Containment *subContainmentOf(const Layout::GenericLayout *layout, const Plasma::Applet *applet);

    void lock(const Layout::GenericLayout *layout); //! make it only read-only
    void unlock(const Layout::GenericLayout *layout); //! make it writable which it should be the default

    void importToCorona(const Layout::GenericLayout *layout);
    void syncToLayoutFile(const Layout::GenericLayout *layout, bool removeLayoutId);
    ViewDelayedCreationData copyView(const Layout::GenericLayout *layout, Plasma::Containment *containment);


    /// STATIC
    //! Check if an applet config group is valid or belongs to removed applet
    static bool appletGroupIsValid(const KConfigGroup &appletGroup);
    static bool isValid(const int &id);


    //! AppletsData Information
    Data::Applet metadata(const QString &pluginId);
    Data::AppletsTable plugins(const Layout::GenericLayout *layout, const int containmentid = IDNULL);
    Data::AppletsTable plugins(const QString &layoutfile, const int containmentid = IDNULL);

    //! Functions used from Layout Reports
    //! [containment id, list<subcontainment ids>], list<subcontainment ids>, list[subcontainment ids]
    void subContainmentsInfo(const QString &file, QHash<int, QList<int>> &subContainments, QList<int> &assignedSubContainments, QList<int> &orphanSubContainments);
    //! list<screens ids>
    QList<int> viewsScreens(const QString &file);
    //! list<ViewData>
    QList<Layout::ViewData> viewsData(const QString &file, const QHash<int, QList<int>> &subContainments);

private:
    Storage();

    bool isSubContainment(const KConfigGroup &appletGroup) const;
    int subIdentityIndex(const KConfigGroup &appletGroup) const;

    //! STORAGE !////
    QString availableId(QStringList all, QStringList assigned, int base);
    //! provides a new file path based the provided file. The new file
    //! has updated ids for containments and applets based on the corona
    //! loaded ones
    QString newUniqueIdsLayoutFromFile(const Layout::GenericLayout *layout, QString file);
    //! imports a layout file and returns the containments for the docks
    QList<Plasma::Containment *> importLayoutFile(const Layout::GenericLayout *layout, QString file);

private:
    QTemporaryDir m_storageTmpDir;

    QList<SubContaimentIdentityData> m_subIdentities;
};

}
}

#endif