/*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.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; version 2 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, write to the Free Software

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

/**

 * @file

 * @brief DataManager class definition

 */

#ifndef HEDGEWARS_DATAMANAGER_H

#define HEDGEWARS_DATAMANAGER_H

#include <QDir>

#include <QFile>

#include <QStringList>

class GameStyleModel;

class HatModel;

class MapModel;

class ThemeModel;

class QStandardItemModel;

/**

 * @brief Offers access to the data files of hedgewars.

 *

 * @see <a href="https://en.wikipedia.org/wiki/Singleton_pattern">singleton pattern</a>

 *

 * @author sheepluva

 * @since 0.9.17

 */

class DataManager: public QObject

{

        Q_OBJECT

    public:

        /**

         * @brief Returns reference to the <i>singleton</i> instance of this class.

         *

         * @see <a href="https://en.wikipedia.org/wiki/Singleton_pattern">singleton pattern</a>

         *

         * @return reference to the instance.

         */

        static DataManager & instance();

        /**

         * @brief Returns a sorted list of data directory entries.

         *

         * @param subDirectory sub-directory to search.

         * @param filters filters for entry type.

         * @param nameFilters filters by name patterns.

         * @return a sorted list of matches in the subDirectory of data directory.

         */

        QStringList entryList(const QString & subDirectory,

                              QDir::Filters filters = QDir::NoFilter,

                             ) const;

        /**

         * @brief Returns pointer to a model of available game styles.

         *

         * The model is updated automatically on data reload.

         *

         * @return game style model pointer.

         */

        GameStyleModel * gameStyleModel();

        /**

         * @brief Returns pointer to a model of available hats.

         *

         * The model is updated automatically on data reload.

         *

         * @return hat model pointer.

         */

        HatModel * hatModel();

        /**

         * @brief Returns pointer to a model of available static maps.

         *

         * The model is updated automatically on data reload.

         *

         * @return map model pointer.

         */

        MapModel * staticMapModel();

        /**

         * @brief Returns pointer to a model of available mission maps.

         *

         * The model is updated automatically on data reload.

         *

         * @return map model pointer.

         */

        MapModel * missionMapModel();

        /**

         * @brief Returns pointer to a model of available themes.

         *

         * The model is updated automatically on data reload.

         *

         * @return theme model pointer.

         */

        ThemeModel * themeModel();

        QStandardItemModel * colorsModel();

        QStandardItemModel * bindsModel();

        QString settingsFileName();

        static QString safeFileName(QString fileName);

        static bool ensureFileExists(const QString & fileName);

    public slots:

        /// Reloads data from storage.

        void reload();

        void resetColors();

    signals:

        /// This signal is emitted after the data has been updated.

        void updated();

    private:

        /**

         * @brief Class constructor of the <i>singleton</i>.

         *

         * Not to be used from outside the class,

         * use the static {@link DataManager::instance()} instead.

         *

         * @see <a href="https://en.wikipedia.org/wiki/Singleton_pattern">singleton pattern</a>

         */

        DataManager();

        GameStyleModel * m_gameStyleModel; ///< game style model instance

        HatModel * m_hatModel; ///< hat model instance

        MapModel * m_staticMapModel; ///< static map model instance

        MapModel * m_missionMapModel; ///< mission map model instance

        ThemeModel * m_themeModel; ///< theme model instance

        QStandardItemModel * m_colorsModel;

        QStandardItemModel * m_bindsModel;

        QString m_settingsFileName;

};

#endif // HEDGEWARS_DATAMANAGER_H