/* \file SiStripSpyDisplayModule.cc
 * \brief File containing code for the SiStripMonitorFEDProcessing plugin module.
 */
// -*- C++ -*-
//
// Package:    SiStripMonitorHardware
// Class:      SiStripSpyDisplayModule
//
// Standard
#include <memory>
#include <vector>
#include <iostream>
#include <string>
#include <sstream>

// Framework include files
#include "FWCore/Utilities/interface/EDGetToken.h"
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/one/EDAnalyzer.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/Framework/interface/ESWatcher.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"

// Needed for the SST cabling
#include "CalibTracker/Records/interface/SiStripDetCablingRcd.h"
#include "CalibFormats/SiStripObjects/interface/SiStripDetCabling.h"
#include "CondFormats/SiStripObjects/interface/FedChannelConnection.h"

// Needed for the pedestal values
#include "CondFormats/SiStripObjects/interface/SiStripPedestals.h"
#include "CondFormats/DataRecord/interface/SiStripPedestalsRcd.h"

// Needed for the noise values
#include "CondFormats/SiStripObjects/interface/SiStripNoises.h"
#include "CondFormats/DataRecord/interface/SiStripNoisesRcd.h"

// For translating between FED key and det ID
#include "DataFormats/SiStripCommon/interface/SiStripFedKey.h"

#include "DataFormats/FEDRawData/interface/FEDRawDataCollection.h"
#include "DataFormats/SiStripDigi/interface/SiStripRawDigi.h"
#include "DataFormats/SiStripDigi/interface/SiStripProcessedRawDigi.h"
#include "DataFormats/SiStripDigi/interface/SiStripDigi.h"
#include "DataFormats/Common/interface/DetSetVector.h"
#include "DataFormats/SiStripCommon/interface/SiStripConstants.h"

// Needed for the FED raw data processing
#include "EventFilter/SiStripRawToDigi/interface/SiStripFEDBuffer.h"
#include "EventFilter/SiStripRawToDigi/interface/SiStripFEDBufferGenerator.h"

// #include "EventFilter/SiStripRawToDigi/interface/SiStripDigiToRaw.h"

//for cabling
#include "DQM/SiStripMonitorHardware/interface/SiStripSpyUtilities.h"

// For plotting
#include "FWCore/ServiceRegistry/interface/Service.h"
#include "CommonTools/UtilAlgos/interface/TFileService.h"
#include "TH1S.h"
#include "TH1D.h"

//
// constants, enums and typedefs
//
enum FEDSpyHistogramType {
  SCOPE_MODE,
  PAYLOAD_RAW,
  REORDERED_PAYLOAD_RAW,
  REORDERED_MODULE_RAW,
  PEDESTAL_VALUES,
  NOISE_VALUES,
  POST_PEDESTAL,
  POST_COMMON_MODE,
  ZERO_SUPPRESSED_PADDED,
  ZERO_SUPPRESSED,
  VR_COMP,
  ZERO_SUPPRESSED_COMP
};

//
// class declaration
//

/*! \brief EDAnalyzer for the online monitoring of the FED using STT spy channel data.
 *
 * \author Tom Whyntie
 * \date Autumn 2009
 * 
 * See https://twiki.cern.ch/twiki/bin/view/CMS/SiStripSpyDisplayModule for
 * further code documentation, and
 * https://twiki.cern.ch/twiki/bin/view/CMS/FEDSpyChannelMonitoring
 * for more information about the spy channel monitoring project.
 *
 */
class SiStripSpyDisplayModule : public edm::one::EDAnalyzer<edm::one::SharedResources> {
public:
  explicit SiStripSpyDisplayModule(const edm::ParameterSet&);
  ~SiStripSpyDisplayModule() override;

private:
  void beginJob() override;
  void analyze(const edm::Event&, const edm::EventSetup&) override;
  void endJob() override;

  Bool_t MakeRawDigiHist_(const edm::Handle<edm::DetSetVector<SiStripRawDigi> >& digi_handle,
                          uint32_t specifier,
                          const TFileDirectory& dir,
                          FEDSpyHistogramType type);

  Bool_t MakeProcessedRawDigiHist_(const edm::Handle<edm::DetSetVector<SiStripProcessedRawDigi> >& digi_handle,
                                   uint32_t specifier,
                                   const TFileDirectory& dir,
                                   FEDSpyHistogramType type);

  Bool_t MakeDigiHist_(const edm::Handle<edm::DetSetVector<SiStripDigi> >& digi_handle,
                       uint32_t detID,
                       const TFileDirectory& dir,
                       FEDSpyHistogramType type);

  // ----------member data ---------------------------
  std::vector<uint32_t> detIDs_;  //!< Vector of detIDs that are of interest (config-specified).
  //now from utility class
  //    edm::ESHandle<SiStripDetCabling> cabling_;        //!< The Strip Tracker cabling object.
  edm::ESGetToken<SiStripDetCabling, SiStripDetCablingRcd> detCablingToken_;
  const SiStripDetCabling* detCabling_;
  edm::ESWatcher<SiStripDetCablingRcd> cablingWatcher_;
  void updateDetCabling(const SiStripDetCablingRcd& rcd);

  // Data input labels
  //===================
  edm::InputTag inputScopeModeRawDigiLabel_;         //!< Label for the scope-mode RawDigi collection input tag
  edm::InputTag inputPayloadRawDigiLabel_;           //!< Label for the virgin raw RawDigi collection input tag.
  edm::InputTag inputReorderedPayloadRawDigiLabel_;  //!< Label for the re-ordered RawDigi module input tag.
  edm::InputTag inputReorderedModuleRawDigiLabel_;   //!< Label for the re-ordered RawDigi module input tag.
  edm::InputTag inputPedestalsLabel_;                //!< Label for the pedestals.
  edm::InputTag inputNoisesLabel_;                   //!< Label for the noises.
  edm::InputTag inputPostPedestalRawDigiLabel_;  //!< Label for the post-pedestal subtraction RawDigi module input tag.
  edm::InputTag inputPostCMRawDigiLabel_;  //!< Label for the post-common mode subtraction RawDigi module input tag.
  edm::InputTag
      inputZeroSuppressedRawDigiLabel_;  //!< Label for the zero-suppressed, zero-padded RawDigi module input tag.
  edm::InputTag inputZeroSuppressedDigiLabel_;      //!< Guess what? It's the input label for the zero-suppressed digi
  edm::InputTag inputCompVirginRawDigiLabel_;       //!< VR RawDigis to compare (from mainline)
  edm::InputTag inputCompZeroSuppressedDigiLabel_;  //!< Zero-suppressed digis to compare (from mainline)

  edm::EDGetTokenT<edm::DetSetVector<SiStripRawDigi> >
      inputScopeModeRawDigiToken_;  //!< Token for the scope-mode RawDigi collection input tag
  edm::EDGetTokenT<edm::DetSetVector<SiStripRawDigi> >
      inputPayloadRawDigiToken_;  //!< Token for the virgin raw RawDigi collection input tag.
  edm::EDGetTokenT<edm::DetSetVector<SiStripRawDigi> >
      inputReorderedPayloadRawDigiToken_;  //!< Token for the re-ordered RawDigi module input tag.
  edm::EDGetTokenT<edm::DetSetVector<SiStripRawDigi> >
      inputReorderedModuleRawDigiToken_;  //!< Token for the re-ordered RawDigi module input tag.
  edm::EDGetTokenT<edm::DetSetVector<SiStripRawDigi> > inputPedestalsToken_;        //!< Token for the pedestals.
  edm::EDGetTokenT<edm::DetSetVector<SiStripProcessedRawDigi> > inputNoisesToken_;  //!< Token for the noises.
  edm::EDGetTokenT<edm::DetSetVector<SiStripRawDigi> >
      inputPostPedestalRawDigiToken_;  //!< Token for the post-pedestal subtraction RawDigi module input tag.
  edm::EDGetTokenT<edm::DetSetVector<SiStripRawDigi> >
      inputPostCMRawDigiToken_;  //!< Token for the post-common mode subtraction RawDigi module input tag.
  edm::EDGetTokenT<edm::DetSetVector<SiStripRawDigi> >
      inputZeroSuppressedRawDigiToken_;  //!< Token for the zero-suppressed, zero-padded RawDigi module input tag.
  edm::EDGetTokenT<edm::DetSetVector<SiStripDigi> >
      inputZeroSuppressedDigiToken_;  //!< Guess what? It's the input label for the zero-suppressed digi
  edm::EDGetTokenT<edm::DetSetVector<SiStripRawDigi> >
      inputCompVirginRawDigiToken_;  //!< VR RawDigis to compare (from mainline)
  edm::EDGetTokenT<edm::DetSetVector<SiStripDigi> >
      inputCompZeroSuppressedDigiToken_;  //!< Zero-suppressed digis to compare (from mainline)
  //
  // Output information
  //====================
  std::string outputFolderName_;  //!< Name for the folder in the TFileService file output.

};  // end of SiStripSpyDisplayModule class

//
// static data member definitions
//

using namespace sistrip;
using namespace std;

//
// constructors and destructor
//
SiStripSpyDisplayModule::SiStripSpyDisplayModule(const edm::ParameterSet& iConfig)
    : detIDs_(iConfig.getParameter<std::vector<uint32_t> >("detIDs")),
      detCablingToken_(esConsumes<>()),
      cablingWatcher_(this, &SiStripSpyDisplayModule::updateDetCabling),
      inputScopeModeRawDigiLabel_(iConfig.getParameter<edm::InputTag>("InputScopeModeRawDigiLabel")),
      inputPayloadRawDigiLabel_(iConfig.getParameter<edm::InputTag>("InputPayloadRawDigiLabel")),
      inputReorderedPayloadRawDigiLabel_(iConfig.getParameter<edm::InputTag>("InputReorderedPayloadRawDigiLabel")),
      inputReorderedModuleRawDigiLabel_(iConfig.getParameter<edm::InputTag>("InputReorderedModuleRawDigiLabel")),
      inputPedestalsLabel_(iConfig.getParameter<edm::InputTag>("InputPedestalsLabel")),
      inputNoisesLabel_(iConfig.getParameter<edm::InputTag>("InputNoisesLabel")),
      inputPostPedestalRawDigiLabel_(iConfig.getParameter<edm::InputTag>("InputPostPedestalRawDigiLabel")),
      inputPostCMRawDigiLabel_(iConfig.getParameter<edm::InputTag>("InputPostCMRawDigiLabel")),
      inputZeroSuppressedRawDigiLabel_(iConfig.getParameter<edm::InputTag>("InputZeroSuppressedRawDigiLabel")),
      inputZeroSuppressedDigiLabel_(iConfig.getParameter<edm::InputTag>("InputZeroSuppressedDigiLabel")),
      inputCompVirginRawDigiLabel_(iConfig.getParameter<edm::InputTag>("InputCompVirginRawDigiLabel")),
      inputCompZeroSuppressedDigiLabel_(iConfig.getParameter<edm::InputTag>("InputCompZeroSuppressedDigiLabel")),
      outputFolderName_(iConfig.getParameter<std::string>("OutputFolderName")) {
  //now do what ever initialization is needed
  inputScopeModeRawDigiToken_ = consumes<edm::DetSetVector<SiStripRawDigi> >(inputScopeModeRawDigiLabel_);
  inputPayloadRawDigiToken_ = consumes<edm::DetSetVector<SiStripRawDigi> >(inputPayloadRawDigiLabel_);
  inputReorderedPayloadRawDigiToken_ = consumes<edm::DetSetVector<SiStripRawDigi> >(inputReorderedPayloadRawDigiLabel_);
  inputReorderedModuleRawDigiToken_ = consumes<edm::DetSetVector<SiStripRawDigi> >(inputReorderedModuleRawDigiLabel_);
  inputPedestalsToken_ = consumes<edm::DetSetVector<SiStripRawDigi> >(inputPedestalsLabel_);
  inputNoisesToken_ = consumes<edm::DetSetVector<SiStripProcessedRawDigi> >(inputNoisesLabel_);
  inputPostPedestalRawDigiToken_ = consumes<edm::DetSetVector<SiStripRawDigi> >(inputPostPedestalRawDigiLabel_);
  inputPostCMRawDigiToken_ = consumes<edm::DetSetVector<SiStripRawDigi> >(inputPostCMRawDigiLabel_);
  inputZeroSuppressedRawDigiToken_ = consumes<edm::DetSetVector<SiStripRawDigi> >(inputZeroSuppressedRawDigiLabel_);
  inputZeroSuppressedDigiToken_ = consumes<edm::DetSetVector<SiStripDigi> >(inputZeroSuppressedDigiLabel_);
  inputCompVirginRawDigiToken_ = consumes<edm::DetSetVector<SiStripRawDigi> >(inputCompVirginRawDigiLabel_);
  inputCompZeroSuppressedDigiToken_ = consumes<edm::DetSetVector<SiStripDigi> >(inputCompZeroSuppressedDigiLabel_);

  usesResource(TFileService::kSharedResource);
}

SiStripSpyDisplayModule::~SiStripSpyDisplayModule() {
  // do anything here that needs to be done at desctruction time
  // (e.g. close files, deallocate resources etc.)
}

//
// member functions
//
//

void SiStripSpyDisplayModule::updateDetCabling(const SiStripDetCablingRcd& rcd) {
  detCabling_ = &rcd.get(detCablingToken_);
}

// ------------ method called once each job just before starting event loop  ------------
void SiStripSpyDisplayModule::beginJob() {
  // register to the TFileService
  edm::Service<TFileService> fs;
  // Check that the TFileService has been configured
  if (!fs.isAvailable()) {
    throw cms::Exception("Configuration") << "TFileService not available: did you configure it ?";
  }
}  // end of beginJob method.

// ------------ method called once each job just after ending the event loop  ------------
void SiStripSpyDisplayModule::endJob() {}

// ------------ method called to for each event  ------------
void SiStripSpyDisplayModule::analyze(const edm::Event& iEvent, const edm::EventSetup& iSetup) {
  using namespace edm;
  using namespace std;

  cablingWatcher_.check(iSetup);

  // Set up the event-level histogram folder
  //-----------------------------------------
  // register to the TFileService
  edm::Service<TFileService> fs;

  // Make the EDAnalyzer instance name directory
  TFileDirectory an_dir = fs->mkdir(outputFolderName_);

  // Make the event directory filename
  stringstream ev_dir_name;
  ev_dir_name << "run" << iEvent.id().run() << "_event" << iEvent.id().event();
  TFileDirectory evdir = an_dir.mkdir(ev_dir_name.str());

  //if there are no detIds, get them from the comparison digis...
  if (detIDs_.empty()) {
    //get the detIds of the modules in the zero-suppressed comparison
    if (!((inputCompZeroSuppressedDigiLabel_.label().empty()) &&
          (inputCompZeroSuppressedDigiLabel_.instance().empty()))) {
      edm::Handle<edm::DetSetVector<SiStripDigi> > czs_digis;
      //            iEvent.getByLabel( inputCompZeroSuppressedDigiLabel_, czs_digis );
      iEvent.getByToken(inputCompZeroSuppressedDigiToken_, czs_digis);
      std::vector<edm::DetSet<SiStripDigi> >::const_iterator digis_it = czs_digis->begin();
      for (; digis_it != czs_digis->end(); ++digis_it) {
        detIDs_.push_back(digis_it->detId());
      }
    } else if (!((inputCompVirginRawDigiLabel_.label().empty()) && (inputCompVirginRawDigiLabel_.instance().empty()))) {
      edm::Handle<edm::DetSetVector<SiStripRawDigi> > cvr_digis;
      //            iEvent.getByLabel( inputCompVirginRawDigiLabel_, cvr_digis );
      iEvent.getByToken(inputCompVirginRawDigiToken_, cvr_digis);
      std::vector<edm::DetSet<SiStripRawDigi> >::const_iterator digis_it = cvr_digis->begin();
      for (; digis_it != cvr_digis->end(); ++digis_it) {
        detIDs_.push_back(digis_it->detId());
      }
    }
  }

  // Loop over detIDs as obtained from the SpyChannelMonitor config file.
  for (std::vector<uint32_t>::iterator d = detIDs_.begin(); d != detIDs_.end(); ++d) {
    // TODO: Need some error checking here, probably...
    const std::vector<const FedChannelConnection*>& conns = detCabling_->getConnections(*d);
    //cout << "________________________________________________" << endl;
    //cout << "FED channels found in detId " << *d << " is " << conns.size() << endl;
    if (conns.empty()) {
      // TODO: Properly DEBUG/warning this...
      //cout << "Skipping detID " << uint32_t(*d) << endl;
      continue;
    }

    // Create a histogram directory for each specified and available detID
    stringstream sss;  //!< detID folder filename
    sss << "detID_" << *d;
    TFileDirectory detID_dir = evdir.mkdir(sss.str());

    // Loop over the channels found with the detID and add directories.
    for (uint32_t ch = 0; ch < conns.size(); ch++) {
      if (conns[ch] && conns[ch]->isConnected()) {
        // Name of channel histogram directory
        stringstream ssss;
        ssss << sss.str() << "_APVpair_" << ch;
        TFileDirectory chan_dir = detID_dir.mkdir(ssss.str());

        // Get the fed key from the detID and the channel
        uint32_t fedkey = SiStripFedKey::fedIndex(conns[ch]->fedId(), conns[ch]->fedCh());

        // (Spy) Scope Mode (SM)
        //=======================
        // Get the fed key from the FED ID and the FED channel (from conns)
        // This is because scope mode always stores in the collection by FED ID
        if (!((inputScopeModeRawDigiLabel_.label().empty()) && (inputScopeModeRawDigiLabel_.instance().empty()))) {
          // Use the SiStripFedKey object to return the FED key
          //cout << "detID=" << *d << ", FED key looking for is " << fedkey << endl;
          //cout << "Attempting to find scope mode raw digis" << endl;
          //
          edm::Handle<edm::DetSetVector<SiStripRawDigi> > sm_rawdigis;
          //                iEvent.getByLabel( inputScopeModeRawDigiLabel_, sm_rawdigis );
          iEvent.getByToken(inputScopeModeRawDigiToken_, sm_rawdigis);
          //
          // Note that the fed key (also a uint32_t) is passed in this case.
          // The method itself doesn't actually care, but it assumes whatever collection
          // is stored in sm_rawdigis is indexed by FED key ;-)
          // TODO: Make this, um, better.
          if (!(MakeRawDigiHist_(sm_rawdigis, fedkey, chan_dir, SCOPE_MODE))) {
            ;
          }
        }

        // Payload Unordered Raw (UR)
        //============================
        if (!((inputPayloadRawDigiLabel_.label().empty()) && (inputPayloadRawDigiLabel_.instance().empty()))) {
          uint32_t fedindex = SiStripFedKey::fedIndex(conns[ch]->fedId(), conns[ch]->fedCh());
          //cout << "Attempting to find payload mode raw digis" << endl;
          edm::Handle<edm::DetSetVector<SiStripRawDigi> > ur_rawdigis;
          //                iEvent.getByLabel( inputPayloadRawDigiLabel_, ur_rawdigis );
          iEvent.getByToken(inputPayloadRawDigiToken_, ur_rawdigis);
          if (!(MakeRawDigiHist_(ur_rawdigis, fedindex, chan_dir, PAYLOAD_RAW))) {
            ;
          }
        }
        // Payload Reordered Raw
        //=======================
        if (!((inputReorderedPayloadRawDigiLabel_.label().empty()) &&
              (inputReorderedPayloadRawDigiLabel_.instance().empty()))) {
          uint32_t fedkey = SiStripFedKey::fedIndex(conns[ch]->fedId(), conns[ch]->fedCh());
          edm::Handle<edm::DetSetVector<SiStripRawDigi> > rrp_rawdigis;
          //                iEvent.getByLabel( inputReorderedPayloadRawDigiLabel_, rrp_rawdigis );
          iEvent.getByToken(inputReorderedPayloadRawDigiToken_, rrp_rawdigis);
          if (!(MakeRawDigiHist_(rrp_rawdigis, fedkey, chan_dir, REORDERED_PAYLOAD_RAW))) {
            ;
          }
        }
      }
    }  // end of loop over channels
    //
    // Module Reordered Raw (RR)
    //====================
    if (!((inputReorderedModuleRawDigiLabel_.label().empty()) &&
          (inputReorderedModuleRawDigiLabel_.instance().empty()))) {
      edm::Handle<edm::DetSetVector<SiStripRawDigi> > rr_rawdigis;
      //            iEvent.getByLabel( inputReorderedModuleRawDigiLabel_, rr_rawdigis );
      iEvent.getByToken(inputReorderedModuleRawDigiToken_, rr_rawdigis);
      //cout << "Making Reordered module histogram for detID " << *d << endl;
      if (!(MakeRawDigiHist_(rr_rawdigis, *d, detID_dir, REORDERED_MODULE_RAW))) {
        ;
      }
    }  // end of ReorderedModuleRaw check

    //
    // Pedestal values
    //========================
    if (!((inputPedestalsLabel_.label().empty()) && (inputPedestalsLabel_.instance().empty()))) {
      edm::Handle<edm::DetSetVector<SiStripRawDigi> > pd_rawdigis;
      //            iEvent.getByLabel( inputPedestalsLabel_, pd_rawdigis );
      iEvent.getByToken(inputPedestalsToken_, pd_rawdigis);
      //cout << "Making pedestal values module histogram for detID " << *d << endl;
      if (!(MakeRawDigiHist_(pd_rawdigis, *d, detID_dir, PEDESTAL_VALUES))) {
        ;
      }
    }
    //
    // Noise values
    //========================
    if (!((inputNoisesLabel_.label().empty()) && (inputNoisesLabel_.instance().empty()))) {
      edm::Handle<edm::DetSetVector<SiStripProcessedRawDigi> > pd_rawdigis;
      //            iEvent.getByLabel( inputNoisesLabel_, pd_rawdigis );
      iEvent.getByToken(inputNoisesToken_, pd_rawdigis);
      //cout << "Making noise values module histogram for detID " << *d << endl;
      if (!(MakeProcessedRawDigiHist_(pd_rawdigis, *d, detID_dir, NOISE_VALUES))) {
        ;
      }
    }
    //
    // Post-Pedestal Raw (PP)
    //========================
    if (!((inputPostPedestalRawDigiLabel_.label().empty()) && (inputPostPedestalRawDigiLabel_.instance().empty()))) {
      edm::Handle<edm::DetSetVector<SiStripRawDigi> > pp_rawdigis;
      //            iEvent.getByLabel( inputPostPedestalRawDigiLabel_, pp_rawdigis );
      iEvent.getByToken(inputPostPedestalRawDigiToken_, pp_rawdigis);
      //cout << "Making post-pedestal module histogram for detID " << *d << endl;
      if (!(MakeRawDigiHist_(pp_rawdigis, *d, detID_dir, POST_PEDESTAL))) {
        ;
      }
    }
    //
    // Post-Common Mode Subtraction Raw (PC)
    //=======================================
    if (!((inputPostCMRawDigiLabel_.label().empty()) && (inputPostCMRawDigiLabel_.instance().empty()))) {
      edm::Handle<edm::DetSetVector<SiStripRawDigi> > pc_rawdigis;
      //            iEvent.getByLabel( inputPostCMRawDigiLabel_, pc_rawdigis );
      iEvent.getByToken(inputPostCMRawDigiToken_, pc_rawdigis);
      //cout << "Making post-CM module histogram for detID " << *d << endl;
      if (!(MakeRawDigiHist_(pc_rawdigis, *d, detID_dir, POST_COMMON_MODE))) {
        ;
      }
    }

    //
    // Zero-Suppressed Digis
    //=======================
    //bool founddigispy = false, founddigimain = false;
    if (!((inputZeroSuppressedDigiLabel_.label().empty()) && (inputZeroSuppressedDigiLabel_.instance().empty()))) {
      //cout << "Making ZeroSuppressed histogram!" << endl;
      edm::Handle<edm::DetSetVector<SiStripDigi> > zs_digis;
      //            iEvent.getByLabel( inputZeroSuppressedDigiLabel_, zs_digis );
      iEvent.getByToken(inputZeroSuppressedDigiToken_, zs_digis);
      //founddigispy =
      MakeDigiHist_(zs_digis, *d, detID_dir, ZERO_SUPPRESSED);
    }
    //comparison to mainline data
    if (!((inputCompVirginRawDigiLabel_.label().empty()) && (inputCompVirginRawDigiLabel_.instance().empty()))) {
      //cout << "Making Mainline VirginRaw histogram!" << endl;
      edm::Handle<edm::DetSetVector<SiStripRawDigi> > cvr_digis;
      //            iEvent.getByLabel( inputCompVirginRawDigiLabel_, cvr_digis );
      iEvent.getByToken(inputCompVirginRawDigiToken_, cvr_digis);
      //founddigimain =
      MakeRawDigiHist_(cvr_digis, *d, detID_dir, VR_COMP);
    }
    if (!((inputCompZeroSuppressedDigiLabel_.label().empty()) &&
          (inputCompZeroSuppressedDigiLabel_.instance().empty()))) {
      //cout << "Making ZeroSuppressed histogram!" << endl;
      edm::Handle<edm::DetSetVector<SiStripDigi> > czs_digis;
      //            iEvent.getByLabel( inputCompZeroSuppressedDigiLabel_, czs_digis );
      iEvent.getByToken(inputCompZeroSuppressedDigiToken_, czs_digis);
      //founddigimain =
      MakeDigiHist_(czs_digis, *d, detID_dir, ZERO_SUPPRESSED_COMP);
    }
    //if (founddigimain && founddigispy) cout << "Found digis for both in detid=" << *d << endl;

  }  // end of loop over detIDs specified in the config.

}  // end of Analyze method.

Bool_t SiStripSpyDisplayModule::MakeRawDigiHist_(const edm::Handle<edm::DetSetVector<SiStripRawDigi> >& digi_handle,
                                                 uint32_t specifier,
                                                 const TFileDirectory& dir,
                                                 FEDSpyHistogramType type)
//const std::string & name)
{
  // TODO: Remove the hard-coded numbers(!).
  TH1S* hist;
  if (type == SCOPE_MODE)
    hist = dir.make<TH1S>("ScopeMode", ";Sample number;ADC counts / strip", 298, 0, 298);
  else if (type == PAYLOAD_RAW)
    hist = dir.make<TH1S>("PayloadRaw", ";Sample number;ADC counts / strip", 256, 0, 256);
  else if (type == REORDERED_PAYLOAD_RAW)
    hist = dir.make<TH1S>("ReorderedPayloadRaw", ";Sample number;ADC counts / strip", 256, 0, 256);
  else if (type == REORDERED_MODULE_RAW)
    hist = dir.make<TH1S>("ReorderedModuleRaw", ";Sample number;ADC counts / strip", 768, 0, 768);
  else if (type == PEDESTAL_VALUES)
    hist = dir.make<TH1S>("PedestalValues", ";Strip number;Pedestal / strip", 768, 0, 768);
  else if (type == POST_PEDESTAL)
    hist = dir.make<TH1S>("PostPedestal", ";Strip number;ADC counts / strip", 768, 0, 768);
  else if (type == POST_COMMON_MODE)
    hist = dir.make<TH1S>("PostCommonMode", ";Strip number;ADC counts / strip", 768, 0, 768);
  else if (type == ZERO_SUPPRESSED_PADDED)
    hist = dir.make<TH1S>("ZeroSuppressedRaw", ";Strip number;ADC counts / strip", 768, 0, 768);
  else if (type == VR_COMP)
    hist = dir.make<TH1S>("VirginRawCom", ";Strip number;ADC counts / strip", 768, 0, 768);
  else {
    hist = nullptr;
    return false;
  }

  // TODO: May need to make this error checking independent when refactoring...
  //std::cout << "| * digis for " << type << " and detID " << specifier;
  std::vector<edm::DetSet<SiStripRawDigi> >::const_iterator digis_it = digi_handle->find(specifier);
  if (digis_it == digi_handle->end()) {
    //std::cout << " not found :( ";
    return false;
  }
  //std::cout << std::endl;

  // Loop over the digis for the detID and APV pair.
  edm::DetSet<SiStripRawDigi>::const_iterator idigi = digis_it->data.begin();
  uint32_t count = 0;
  for (; idigi != digis_it->data.end(); ++idigi) {
    count++;
    hist->SetBinContent(count, static_cast<int>((*idigi).adc()));
  }  // end of loop over the digis
  return true;  // Success! (Probably.)
}

Bool_t SiStripSpyDisplayModule::MakeProcessedRawDigiHist_(
    const edm::Handle<edm::DetSetVector<SiStripProcessedRawDigi> >& digi_handle,
    uint32_t specifier,
    const TFileDirectory& dir,
    FEDSpyHistogramType type)
//const std::string & name)
{
  // TODO: Remove the hard-coded numbers(!).
  TH1F* hist;
  if (type == NOISE_VALUES)
    hist = dir.make<TH1F>("NoiseValues", ";Strip number;Noise / strip", 768, 0, 768);
  else {
    hist = nullptr;
    return false;
  }

  // TODO: May need to make this error checking independent when refactoring...
  //std::cout << "| * digis for " << type << " and detID " << specifier;
  std::vector<edm::DetSet<SiStripProcessedRawDigi> >::const_iterator digis_it = digi_handle->find(specifier);
  if (digis_it == digi_handle->end()) {
    //std::cout << " not found :( ";
    return false;
  }
  //std::cout << std::endl;

  // Loop over the digis for the detID and APV pair.
  edm::DetSet<SiStripProcessedRawDigi>::const_iterator idigi = digis_it->data.begin();
  uint32_t count = 0;
  for (; idigi != digis_it->data.end(); ++idigi) {
    count++;
    hist->SetBinContent(count, static_cast<float>((*idigi).adc()));
  }  // end of loop over the digis
  return true;  // Success! (Probably.)
}

Bool_t SiStripSpyDisplayModule::MakeDigiHist_(const edm::Handle<edm::DetSetVector<SiStripDigi> >& digi_handle,
                                              uint32_t detID,
                                              //uint32_t channel,
                                              const TFileDirectory& dir,
                                              FEDSpyHistogramType type)
//const std::string & name)
{
  // TODO: Remove the hard-coded numbers.
  TH1S* hist;
  if (type == ZERO_SUPPRESSED)
    hist = dir.make<TH1S>("ZeroSuppressedDigi", ";Strip number;ADC counts / strip", 768, 0, 768);
  else if (type == ZERO_SUPPRESSED_COMP)
    hist = dir.make<TH1S>("ZeroSuppressedDigiComp", ";Strip number;ADC counts / strip", 768, 0, 768);
  else {
    hist = nullptr;
    return false;
  }

  // TODO: May need to make this error checking independent when refactoring...
  std::vector<edm::DetSet<SiStripDigi> >::const_iterator digis_it = digi_handle->find(detID);
  if (digis_it == digi_handle->end()) {
    return false;
  } else {
    //cout << "--* ZS digis found for detID " << detID << endl;
  }

  // Loop over the digis for the detID and APV pair.
  edm::DetSet<SiStripDigi>::const_iterator idigi = digis_it->data.begin();
  bool founddigi = false;
  for (; idigi != digis_it->data.end(); ++idigi) {
    // Check strip number is within the channel limits
    //if ( static_cast<uint16_t>( (*idigi).strip()/256. ) == channel ) {
    //    hist->SetBinContent( ((*idigi).strip())%256 + 1,(*idigi).adc());
    //}
    hist->SetBinContent(static_cast<int>(((*idigi).strip())) + 1, static_cast<int>((*idigi).adc()));
    if ((*idigi).adc() > 0)
      founddigi = true;
    //cout << "----* ZS digi found at " << static_cast<int>(((*idigi).strip()))
    //     << ", " << static_cast<int>((*idigi).adc()) << endl;
  }  // end of loop over the digis

  return founddigi;
}

// Define this as a plug-in
DEFINE_FWK_MODULE(SiStripSpyDisplayModule);