//* $Id: */

// -------------------------------------------------------------------------
// -----                     FairEventBuilder header file              -----
// -----                  Created 20/09/2013 by R. Karabowicz          -----
// -------------------------------------------------------------------------


/** FairEventBuilder
 *@author Radoslaw Karabowicz <r.karabowicz@gsi.de>
 *@since 20/09/2013
 *@version 1.0
 **
 ** FairRoot general task for recreating events in Time-Based reconstruction mode.
 ** Various experiments should implement their own version of Event Builder.
 ** The main member of the task is vector of reconstructed events fRecoEvents.
 ** It also contains a vector of implementations of FairEventBuffers, that are
 ** responsible for feeding fRecoEvents vector via FindEvents() function.
 ** 
 ** The heart of the experiment-specific implemenations is
 ** the AnalyzeAndExtractEvents() function, which should interpret
 ** the experimental data to reconstruct events.
 **/


#ifndef FAIREVENTBUILDER_H
#define FAIREVENTBUILDER_H 1

#include "FairTask.h"
#include "FairEventBuffer.h"

#include "TStopwatch.h"

#include <map>
#include <set>
#include <vector>

class TClonesArray;

class FairEventBuilder : public FairTask
{


 public :

  /** Default constructor **/
  FairEventBuilder();


  /** Constructor with task name **/
  FairEventBuilder(const char* name, Int_t iVerbose=1);


  /** Destructor **/
  virtual ~FairEventBuilder();


  /** Execution **/
  virtual void Exec(Option_t* opt);


  /** Adding FairEventBuffer **/
  void AddEventBuffer(FairEventBuffer* eventBuffer);

  void CreateAndFillEvents(Double_t maxEventTimeAllowed);

 private:

  std::vector<FairEventBuffer*> fEventBuffers;
  std::vector<std::vector<std::pair<double,FairRecoEventHeader*> > >  fPossibleEvents;

  FairRecoEventHeader*    fOutEvent;

  /** Get parameter containers **/
  virtual void SetParContainers();


  /** Intialisation **/
  virtual InitStatus Init();


  /** Reinitialisation **/
  virtual InitStatus ReInit();


  /** Finish at the end of each event **/
  virtual void Finish();

  ClassDef(FairEventBuilder,1);

};

#endif