#ifndef SETTINGS_H
#define SETTINGS_H

#include <QObject>
#include <QXmlStreamReader>
#include <QFile>
#include <QMessageBox>
#include <QSet>

//#include "olathread.h"
#include "medialibrary.h"
#include "defines.h"

/**
 * This class stores the settings on lms.
 * Is a singleton with set and get methods to manage the settings
 * Also writes and reads the settings files.
 */

class Settings : public QObject
{
    Q_OBJECT

public:

    static Settings *getInstance(); //Singleton

   /**
    * @brief getUniverses
    * @return
    */
   inline QSet<int> getUniverses() { return m_universe; }

   /**
    * @brief getPathMedia
    * @return
    */
   inline QString getPathMedia() { return m_pathmedia; }

   /**
    * @brief setPathMedia
    * @param path
    */
   void setPathMedia(QString path);

   /**
    * @brief getDmxSettings
    * @return
    */
   inline QList<dmxSetting> getDmxSettings() { return m_settings; }

   /**
    * @brief Get the number of layer currently used
    * @return
    */
   inline int getLayersNumber() { return m_layersNumber; }

   /**
    * @brief Get the number of universes registered
    * @return
    */
   inline int getUniverseNumber() { return m_universe.size(); }

   /**
    * @brief Read the default xml configuration file at startup
    */
   void readFile();

private:

   static Settings *_instance;

   /** Constructor
    *
    */
   explicit Settings(QObject *parent = 0);

   QSet<int> m_universe; // Registered universes.

   int m_layersNumber; // Number of layers in wich divide the dmx frame. Each layer, one source.

   /**
    * @brief olaThread::setLayersNumber
    * @param layersNumber
    *
    */
   inline void setLayersNumber(int layersNumber)
   {
       if (layersNumber <= LAYERS_NUMBER)
           m_layersNumber = layersNumber;
       else
           m_layersNumber = LAYERS_NUMBER;
   }

    // The list where we store the settings by layer
    QList<dmxSetting> m_settings;

    // The path to media library
    QString m_pathmedia;

    /**
     * @brief readFromFile
     * @param file
     */
    void readFromFile(QString file);

    /**
     * @brief writeFile
     * @param filename
     */
//    void writeFile(QString filename);    // Not implemented yet

    /**
     * @brief writeFile
     * overload
     */
//    void writeFile();    // Not implemented yet

signals:

    /**
     * @brief pathChanged
     * @param path
     */
    void pathChanged(QString path);

    /**
     * @brief layersNumber
     * @param number
     */
    void layersNumber(int number);

    /**
     * @brief DMXConf
     * @param universe
     */
    void registerUniverse(int universe);

public slots:
    
};

#endif // SETTINGS_H