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// -*- C++ -*-
//
// Package:   EcalSkim
// Class:     EcalSkim
//
//class EcalSkim EcalSkim.cc
//
// Original Author:  Serena OGGERO
//         Created:  We May 14 10:10:52 CEST 2008
//        Modified:  Toyoko ORIMOTO

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

// user include files
#include "DPGAnalysis/Skims/interface/EcalSkim.h"

#include "FWCore/Utilities/interface/InputTag.h"
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/EDFilter.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "Geometry/CaloTopology/interface/CaloTopology.h"
#include "Geometry/CaloEventSetup/interface/CaloTopologyRecord.h"
#include "DataFormats/EgammaReco/interface/SuperCluster.h"
#include "DataFormats/EgammaReco/interface/SuperClusterFwd.h"

using namespace edm;
using namespace std;
using namespace reco;

EcalSkim::EcalSkim(const edm::ParameterSet& iConfig)
{
  BarrelClusterCollection = iConfig.getParameter<edm::InputTag>("barrelClusterCollection");
  EndcapClusterCollection = iConfig.getParameter<edm::InputTag>("endcapClusterCollection");

  EnergyCutEB = iConfig.getUntrackedParameter<double>("energyCutEB");
  EnergyCutEE = iConfig.getUntrackedParameter<double>("energyCutEE");

}

EcalSkim::~EcalSkim()
{
}

bool EcalSkim::filter( edm::Event& iEvent, const edm::EventSetup& iSetup)
{
 int ievt = iEvent.id().event();

 edm::Handle<reco::SuperClusterCollection> bccHandle; // barrel
 edm::Handle<reco::SuperClusterCollection> eccHandle; // endcap 
 
 iEvent.getByLabel("cosmicSuperClusters","CosmicBarrelSuperClusters", bccHandle);
 if (!(bccHandle.isValid()))
 {
   LogWarning("EcalSkim") << BarrelClusterCollection << " not available in event " << ievt;
   return false;
 }
 else 
 {
   //   edm::LogVerbatim("") << "I took the right barrel collection" ;
 }
 iEvent.getByLabel("cosmicSuperClusters","CosmicEndcapSuperClusters", eccHandle);
 
 if (!(eccHandle.isValid()))
 {
   LogWarning("EcalSkim") << EndcapClusterCollection << " not available";
   //return false;
 }
 else 
 {
   //edm::LogVerbatim("") << "I took the right endcap collection " ;
 }

 bool accepted = false;
 bool acceptedEB = false;
 bool acceptedEE = false;

 // barrel
 const reco::SuperClusterCollection *clusterCollectionEB = bccHandle.product();
 for (reco::SuperClusterCollection::const_iterator clus = clusterCollectionEB->begin(); clus != clusterCollectionEB->end(); ++clus)
   {
     if ( clus->energy() >= EnergyCutEB )
       {
         acceptedEB = true;
         break;
       }
   }
 
 // endcap
 const reco::SuperClusterCollection *clusterCollectionEE = eccHandle.product();
 for (reco::SuperClusterCollection::const_iterator clus = clusterCollectionEE->begin(); clus != clusterCollectionEE->end(); ++clus)
   {
     if ( clus->energy() >= EnergyCutEE )
       {
         acceptedEE = true;
         break;
       }
   }
 
 // if there is at least one high energy cluster in EB OR EE, accept
 if (acceptedEB||acceptedEE) accepted = true;  

 return accepted;

}

//define this as a plug-in
DEFINE_FWK_MODULE(EcalSkim);