/**
 * @file Common/app.h
 * @brief Application interface implementation
 * @author Enar Vaikene
 *
 * Copyright (c) 2011-2019 Enar Vaikene
 *
 * This file is part of the eVaf C++ cross-platform application development framework.
 *
 * This file can be used under the terms of the GNU General Public License
 * version 3.0 as published by the Free Software Foundation and appearing in
 * the file LICENSE included in the packaging of this file. Please review the
 * the following information to ensure the GNU General Public License version
 * 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
 *
 * Alternatively, this file may be used in accordance with the Commercial License
 * Agreement provided with the Software.
 */

#ifndef __COMMON_APP_H
#define __COMMON_APP_H

#include "iapp.h"

#include <QObject>
#include <QString>

class QEvent;

namespace eVaf {
namespace Common {
namespace Internal {

/**
 * iApp application interface implementation
 */
class App : public iApp
{
    Q_OBJECT

public:

    /**
     * Destroys the iApp interface instance
     */
    static void destroyInstance();

    App();

    virtual ~App();

    /**
     * Initializes the interface implementation
     * @return True if ok; false if initialization failed
     */
    bool init();

    virtual bool event(QEvent *);

    /*
        iApp interface
    */
    virtual QString const name() const { return mName; }

    virtual QString const language() const { return mLanguage; }

    virtual QString const xmlFileName() const;

    virtual int exec();

    virtual void restart();

    virtual void quit(bool err = false);

    virtual bool isReady() const { return mReady; }

    virtual QString const rootDir() const { return mRootDir; }

    virtual QString const dataRootDir() const;

    virtual QString const binDir() const { return mBinDir; }

    virtual QString const etcDir() const;

    virtual QString const logDir() const;

    virtual QString const docDir() const;

    virtual QString const qtPluginsDir() const;


private: // Members

    /// Flag indicating that the eVaf application is ready
    bool mReady;

    /// Name of the application
    QString mName;

    /// Language for the application
    QString mLanguage;

    /// Name of the application's XML file
    mutable QString mXmlFile;

    /// Name of the root directry
    QString mRootDir;

    /// Name of the data root directory
    mutable QString mDataRootDir;

    /// Name of the binary directory
    QString mBinDir;

    /// Name of the Qt plugins directory
    mutable QString mQtPluginsDir;

    /// Name of the configuration files directory
    mutable QString mEtcDir;

    /// Name of the log files directory
    mutable QString mLogDir;

    /// Name of the documentation directory
    mutable QString mDocDir;

    /// Event numbers
    uint mEvQuit;
    uint mEvRestart;
    uint mEvReady;
    uint mEvTerminating;


private: // Methods

    void setReady(bool value);

};

} // namespace eVaf::Common::Internal
} // namespace eVaf::Common
} // namespace eVaf

#endif // app.h