#ifndef __creaImageIOSynchronizer_h_INCLUDED__
#define __creaImageIOSynchronizer_h_INCLUDED__

#include <creaImageIOSQLiteTreeHandler.h>
#include <creaImageIOImageReader.h>

namespace creaImageIO
{

//=======================================================================
/// Synchronizes a given database with disk
class Synchronizer
  {
  public:
      /// Ctor
      Synchronizer(TreeHandler* th);
      /// Dtor
      ~Synchronizer();
	  ///Sets the tree handler to use in order to synchronize with a given database
	  void SetTreeHandler(TreeHandler * handler){mHandler=handler;}
	  ///Synchronizes the database in the current tree handler with disk by doing the passed action. If it is true,
	  ///the database will be updated, otherwise a warning message will be returned.
	  std::string Synchronize(bool update);
	  ///Checks if the file given as a parameter exists in the drive
	  bool FileExists(std::string file);
	  ///Checks if the attributes of the node given as a parameter matchwith it correspondent file in disk 
	  ///NB: This method doesn't check the existence of the file, so FileExists should be called before.
	  void AttributesMatch(bool update, std::string file, std::stringstream& mess);


  private:
	  ///The tree handler
	  TreeHandler* mHandler;
	  ///The image reader
	  ImageReader mReader;
	  ///Synchronizes the given file, doing the action required and returning the result on the string supplied
	  void SynchronizeFile(bool update, std::string file, std::stringstream& message);

  };
} // EO namespace creaImageIO

// EOF
#endif