////////////////////////////////////////////////////////////////////////////////
//                                                                            //
// AliFemtoQAEventCut - the basic cut to check QA for event cuts.             //
// Only cuts on event multiplicity and z-vertex position                      //
//                                                                            //
////////////////////////////////////////////////////////////////////////////////

#include "AliFemtoQAEventCut.h"
//#include <cstdio>

#ifdef __ROOT__
ClassImp(AliFemtoQAEventCut)
#endif

AliFemtoQAEventCut::AliFemtoQAEventCut() :
  AliFemtoEventCut(),
  fEventMult(),
  fVertZPos(),
  fAcceptBadVertex(false), 
  fNEventsPassed(0), 
  fNEventsFailed(0),
  fHighOrLowSwitch(0), 
  fEventMultQASwitch(kFALSE), 
  fEventZPosQASwitch(kFALSE)
{
  // Default constructor
  fEventMult[0] = 0;
  fEventMult[1] = 100000;
  fVertZPos[0] = -100.0;
  fVertZPos[1] = 100.0;
  
  fHighOrLowSwitch = 1;
  fEventMultQASwitch = false;
  fEventZPosQASwitch = false;
  fEventMultQAExclusionZone[0] = 0;
  fEventMultQAExclusionZone[1] = 100000;
  fEventZPosQAExclusionZone[0] = -100.0;
  fEventZPosQAExclusionZone[1] = 100.0;

} 
//------------------------------
AliFemtoQAEventCut::~AliFemtoQAEventCut(){
  // Default destructor
}
//------------------------------
AliFemtoQAEventCut& AliFemtoQAEventCut::operator=(AliFemtoQAEventCut& c)
{
  if (this != &c) {
    fEventMult[0] = c.fEventMult[0];
    fEventMult[1] = c.fEventMult[1];
    fVertZPos[0] = c.fVertZPos[0];
    fVertZPos[1] = c.fVertZPos[1];
    
    fHighOrLowSwitch = c.fHighOrLowSwitch;
    fEventMultQASwitch = c.fEventMultQASwitch;
    fEventZPosQASwitch = c.fEventZPosQASwitch;
    fEventMultQAExclusionZone[0] = c.fEventMultQAExclusionZone[0];
    fEventMultQAExclusionZone[1] = c.fEventMultQAExclusionZone[1];
    fEventZPosQAExclusionZone[0] = c.fEventZPosQAExclusionZone[0];
    fEventZPosQAExclusionZone[1] = c.fEventZPosQAExclusionZone[1];
  }

  return *this;
}
//------------------------------
bool AliFemtoQAEventCut::Pass(const AliFemtoEvent* event){
  // Pass events if they fall within the multiplicity and z-vertex
  // position range. If QA cutting on quantity, pass if outside 
  // exclusion zone between low and high cut values. Fail otherwise.
  int mult =  event->NumberOfTracks();
  double vertexZPos = event->PrimVertPos().z();
  cout << "AliFemtoQAEventCut:: mult:       " << fEventMult[0] << " < " << mult << " < " << fEventMult[1] << endl;
  cout << "AliFemtoQAEventCut:: VertexZPos: " << fVertZPos[0] << " < " << vertexZPos << " < " << fVertZPos[1] << endl;
  
  bool goodEvent;
  
  if (fEventMultQASwitch) {
    goodEvent =
      ( (((mult < fEventMultQAExclusionZone[0]) && (fHighOrLowSwitch > 0))  ||
	 ((mult > fEventMultQAExclusionZone[1]) && (fHighOrLowSwitch < 0))) &&
      (mult > fEventMult[0]) && 
      (mult < fEventMult[1]) && 
      (vertexZPos > fVertZPos[0]) &&
      (vertexZPos < fVertZPos[1]) &&
      (fAcceptBadVertex || (event->PrimVertCov()[4] > -1000.0)));
  }
  else if (fEventZPosQASwitch) {
    goodEvent =
      ((((vertexZPos < fEventZPosQAExclusionZone[0]) && (fHighOrLowSwitch > 0))  ||
	((vertexZPos > fEventZPosQAExclusionZone[1]) && (fHighOrLowSwitch < 0))) &&
      (mult > fEventMult[0]) && 
      (mult < fEventMult[1]) && 
      (vertexZPos > fVertZPos[0]) &&
      (vertexZPos < fVertZPos[1]) &&
      (fAcceptBadVertex || (event->PrimVertCov()[4] > -1000.0)));
  }
  else {
  goodEvent =
    ((mult > fEventMult[0]) && 
     (mult < fEventMult[1]) && 
     (vertexZPos > fVertZPos[0]) &&
     (vertexZPos < fVertZPos[1]) &&
     (fAcceptBadVertex || (event->PrimVertCov()[4] > -1000.0)));
  }
  
  if (goodEvent) fHighOrLowSwitch *= -1;
  goodEvent ? fNEventsPassed++ : fNEventsFailed++ ;
  //cout << "AliFemtoQAEventCut:: return : " << goodEvent << endl;
  return (goodEvent);
}
//------------------------------
AliFemtoString AliFemtoQAEventCut::Report(){
  // Prepare report
  string stemp;
  char ctemp[100];
  snprintf(ctemp , 100, "\nMultiplicity:\t %d-%d",fEventMult[0],fEventMult[1]);
  stemp = ctemp;
  snprintf(ctemp , 100, "\nVertex Z-position:\t %E-%E",fVertZPos[0],fVertZPos[1]);
  stemp += ctemp;
  snprintf(ctemp , 100, "\nNumber of events which passed:\t%ld  Number which failed:\t%ld",fNEventsPassed,fNEventsFailed);
  stemp += ctemp;
  AliFemtoString returnThis = stemp;
  return returnThis;
}
void AliFemtoQAEventCut::SetAcceptBadVertex(bool b)
{
  fAcceptBadVertex = b;
}
bool AliFemtoQAEventCut::GetAcceptBadVertex()
{
  return fAcceptBadVertex;
}