#ifndef __creaImageIOListener_h_INCLUDED__
#define __creaImageIOListener_h_INCLUDED__

#include <creaImageIOSystem.h>
#include <stdio.h>
#include <time.h>
#include <wx/thread.h>
// Signal/slot mechanism
#include <boost/signal.hpp>
#include <boost/bind.hpp>
#include <boost/thread/mutex.hpp>

namespace creaImageIO
{

  class Listener : public wxThread
  {
  public:
    /// Ctors 
    Listener();
    /// Dtor
    virtual ~Listener();
	///Thread method that is executed once create is called
	void* Entry();
	///Thread method called upon exiting
    void  OnExit();
	///Sets the new state of adding files
	void SetAddFilesState(bool addFiles){boost::mutex::scoped_lock lock(mMutex);mAddFiles=addFiles;}
	///Sets the new state of removing files
	void SetRemoveFilesState(bool removeFiles){boost::mutex::scoped_lock lock(mMutex);mRemoveFiles=removeFiles;}
	///Sets the new monitored drive
	void SetMonitoredDrive(const std::string& dr){boost::mutex::scoped_lock lock(mMutex);mDrive=dr;}
	///Puts the name of the monitored drive in the given string
	void GetMonitoredDrive(std::string& drive){drive=mDrive;}

	///Related with signals
	//=============================================
    typedef boost::signal<void (bool)>  MountingSignalType;
    typedef MountingSignalType::slot_function_type MountingCallbackType;
    //=============================================

    //==================================================================
    void ConnectObserver(MountingCallbackType callback);
    //==================================================================

	///Sends a boost::signal to alert that the drive has changed its state (mounted/unmounted)
	void SendSignal(bool ivalid);
  

  private:
    /// The mutex
    boost::mutex mMutex;
    /// Boolean that declares if the files that are read on CD mount should be added
    bool mAddFiles;
	/// Boolean that declares if, on CD unmount, the files that were in the drive should be removed
    bool mRemoveFiles;
	///Boolean that declares if a unit has been mounted
	bool mMounted;
	///The monitored drive
	std::string mDrive;
	///The validation signal
	MountingSignalType mMountingSignal;
  };

}

#endif