#include "DQM/EcalMonitorClient/interface/PedestalClient.h"

#include "DQM/EcalCommon/interface/MESetMulti.h"
#include "DQM/EcalCommon/interface/EcalDQMCommonUtils.h"

#include "DataFormats/EcalDetId/interface/EcalPnDiodeDetId.h"

#include "CondFormats/EcalObjects/interface/EcalDQMStatusHelper.h"

#include "FWCore/ParameterSet/interface/ParameterSet.h"

#include <iomanip>

namespace ecaldqm {
  PedestalClient::PedestalClient()
      : DQWorkerClient(),
        gainToME_(),
        pnGainToME_(),
        minChannelEntries_(0),
        expectedMean_(0.),
        toleranceMean_(0.),
        toleranceRMSEB_(0),
        toleranceRMSEE_(0),
        expectedPNMean_(0.),
        tolerancePNMean_(0.),
        tolerancePNRMS_(0) {}

  void PedestalClient::setParams(edm::ParameterSet const& _params) {
    minChannelEntries_ = _params.getUntrackedParameter<int>("minChannelEntries");
    expectedMean_ = _params.getUntrackedParameter<double>("expectedMean");
    toleranceMean_ = _params.getUntrackedParameter<double>("toleranceMean");
    expectedPNMean_ = _params.getUntrackedParameter<double>("expectedPNMean");
    tolerancePNMean_ = _params.getUntrackedParameter<double>("tolerancePNMean");

    std::vector<int> MGPAGains(_params.getUntrackedParameter<std::vector<int> >("MGPAGains"));
    std::vector<int> MGPAGainsPN(_params.getUntrackedParameter<std::vector<int> >("MGPAGainsPN"));

    MESet::PathReplacements repl;

    MESetMulti const& pedestal(static_cast<MESetMulti const&>(sources_.at("Pedestal")));
    unsigned nG(MGPAGains.size());
    for (unsigned iG(0); iG != nG; ++iG) {
      int gain(MGPAGains[iG]);
      if (gain != 1 && gain != 6 && gain != 12)
        throw cms::Exception("InvalidConfiguration") << "MGPA gain";
      repl["gain"] = std::to_string(gain);
      gainToME_[gain] = pedestal.getIndex(repl);
    }

    repl.clear();

    MESetMulti const& pnPedestal(static_cast<MESetMulti const&>(sources_.at("PNPedestal")));
    unsigned nGPN(MGPAGainsPN.size());
    for (unsigned iG(0); iG != nGPN; ++iG) {
      int gain(MGPAGainsPN[iG]);
      if (gain != 1 && gain != 16)
        throw cms::Exception("InvalidConfiguration") << "PN MGPA gain";
      repl["pngain"] = std::to_string(gain);
      pnGainToME_[gain] = pnPedestal.getIndex(repl);
    }

    toleranceRMSEB_.resize(nG);
    toleranceRMSEE_.resize(nG);

    std::vector<double> inToleranceRMSEB(_params.getUntrackedParameter<std::vector<double> >("toleranceRMSEB"));
    std::vector<double> inToleranceRMSEE(_params.getUntrackedParameter<std::vector<double> >("toleranceRMSEE"));

    for (std::map<int, unsigned>::iterator gainItr(gainToME_.begin()); gainItr != gainToME_.end(); ++gainItr) {
      unsigned iME(gainItr->second);
      unsigned iGain(0);
      switch (gainItr->first) {
        case 1:
          iGain = 0;
          break;
        case 6:
          iGain = 1;
          break;
        case 12:
          iGain = 2;
          break;
      }

      toleranceRMSEB_[iME] = inToleranceRMSEB[iGain];
      toleranceRMSEE_[iME] = inToleranceRMSEE[iGain];
    }

    tolerancePNRMS_.resize(nGPN);

    std::vector<double> inTolerancePNRMS(_params.getUntrackedParameter<std::vector<double> >("tolerancePNRMS"));

    for (std::map<int, unsigned>::iterator gainItr(pnGainToME_.begin()); gainItr != pnGainToME_.end(); ++gainItr) {
      unsigned iME(gainItr->second);
      unsigned iGain(0);
      switch (gainItr->first) {
        case 1:
          iGain = 0;
          break;
        case 16:
          iGain = 1;
          break;
      }

      tolerancePNRMS_[iME] = inTolerancePNRMS[iGain];
    }

    qualitySummaries_.insert("Quality");
    qualitySummaries_.insert("QualitySummary");
    qualitySummaries_.insert("PNQualitySummary");
  }

  void PedestalClient::producePlots(ProcessType) {
    using namespace std;

    MESetMulti& meQuality(static_cast<MESetMulti&>(MEs_.at("Quality")));
    MESetMulti& meQualitySummary(static_cast<MESetMulti&>(MEs_.at("QualitySummary")));
    MESetMulti& meMean(static_cast<MESetMulti&>(MEs_.at("Mean")));
    MESetMulti& meRMS(static_cast<MESetMulti&>(MEs_.at("RMS")));
    MESetMulti& mePNQualitySummary(static_cast<MESetMulti&>(MEs_.at("PNQualitySummary")));
    MESetMulti& mePNRMS(static_cast<MESetMulti&>(MEs_.at("PNRMS")));

    MESetMulti const& sPedestal(static_cast<MESetMulti const&>(sources_.at("Pedestal")));
    MESetMulti const& sPNPedestal(static_cast<MESetMulti const&>(sources_.at("PNPedestal")));

    for (map<int, unsigned>::iterator gainItr(gainToME_.begin()); gainItr != gainToME_.end(); ++gainItr) {
      meQuality.use(gainItr->second);
      meQualitySummary.use(gainItr->second);
      meMean.use(gainItr->second);
      meRMS.use(gainItr->second);

      sPedestal.use(gainItr->second);

      uint32_t mask(0);
      switch (gainItr->first) {
        case 1:
          mask |= (1 << EcalDQMStatusHelper::PEDESTAL_LOW_GAIN_MEAN_ERROR |
                   1 << EcalDQMStatusHelper::PEDESTAL_LOW_GAIN_RMS_ERROR);
          break;
        case 6:
          mask |= (1 << EcalDQMStatusHelper::PEDESTAL_MIDDLE_GAIN_MEAN_ERROR |
                   1 << EcalDQMStatusHelper::PEDESTAL_MIDDLE_GAIN_RMS_ERROR);
          break;
        case 12:
          mask |= (1 << EcalDQMStatusHelper::PEDESTAL_HIGH_GAIN_MEAN_ERROR |
                   1 << EcalDQMStatusHelper::PEDESTAL_HIGH_GAIN_RMS_ERROR);
          break;
        default:
          break;
      }

      MESet::iterator qEnd(meQuality.end(GetElectronicsMap()));
      MESet::const_iterator pItr(GetElectronicsMap(), sPedestal);
      for (MESet::iterator qItr(meQuality.beginChannel(GetElectronicsMap())); qItr != qEnd;
           qItr.toNextChannel(GetElectronicsMap())) {
        DetId id(qItr->getId());

        bool doMask(meQuality.maskMatches(id, mask, statusManager_, GetTrigTowerMap()));

        pItr = qItr;

        float entries(pItr->getBinEntries());

        if (entries < minChannelEntries_) {
          qItr->setBinContent(doMask ? kMUnknown : kUnknown);
          continue;
        }

        float mean(pItr->getBinContent());
        float rms(pItr->getBinError() * sqrt(entries));

        meMean.fill(getEcalDQMSetupObjects(), id, mean);
        meRMS.fill(getEcalDQMSetupObjects(), id, rms);

        float toleranceRMS_ =
            (id.subdetId() == EcalBarrel) ? toleranceRMSEB_[gainItr->second] : toleranceRMSEE_[gainItr->second];

        if (abs(mean - expectedMean_) > toleranceMean_ || rms > toleranceRMS_)
          qItr->setBinContent(doMask ? kMBad : kBad);
        else
          qItr->setBinContent(doMask ? kMGood : kGood);
      }

      towerAverage_(meQualitySummary, meQuality, 0.2);
    }

    for (map<int, unsigned>::iterator gainItr(pnGainToME_.begin()); gainItr != pnGainToME_.end(); ++gainItr) {
      mePNQualitySummary.use(gainItr->second);
      mePNRMS.use(gainItr->second);

      sPNPedestal.use(gainItr->second);

      uint32_t mask(0);
      switch (gainItr->first) {
        case 1:
          mask |= (1 << EcalDQMStatusHelper::PEDESTAL_LOW_GAIN_MEAN_ERROR |
                   1 << EcalDQMStatusHelper::PEDESTAL_LOW_GAIN_RMS_ERROR);
          break;
        case 16:
          mask |= (1 << EcalDQMStatusHelper::PEDESTAL_HIGH_GAIN_MEAN_ERROR |
                   1 << EcalDQMStatusHelper::PEDESTAL_HIGH_GAIN_RMS_ERROR);
          break;
        default:
          break;
      }

      for (unsigned iDCC(0); iDCC < nDCC; ++iDCC) {
        if (memDCCIndex(iDCC + 1) == unsigned(-1))
          continue;

        for (unsigned iPN(0); iPN < 10; ++iPN) {
          int subdet(0);
          if (iDCC >= kEBmLow && iDCC <= kEBpHigh)
            subdet = EcalBarrel;
          else
            subdet = EcalEndcap;

          EcalPnDiodeDetId id(subdet, iDCC + 1, iPN + 1);

          bool doMask(mePNQualitySummary.maskMatches(id, mask, statusManager_, GetTrigTowerMap()));

          float entries(sPNPedestal.getBinEntries(getEcalDQMSetupObjects(), id));

          if (entries < minChannelEntries_) {
            mePNQualitySummary.setBinContent(getEcalDQMSetupObjects(), id, doMask ? kMUnknown : kUnknown);
            continue;
          }

          float mean(sPNPedestal.getBinContent(getEcalDQMSetupObjects(), id));
          float rms(sPNPedestal.getBinError(getEcalDQMSetupObjects(), id) * sqrt(entries));

          mePNRMS.fill(getEcalDQMSetupObjects(), id, rms);

          if (abs(mean - expectedPNMean_) > tolerancePNMean_ || rms > tolerancePNRMS_[gainItr->second])
            mePNQualitySummary.setBinContent(getEcalDQMSetupObjects(), id, doMask ? kMBad : kBad);
          else
            mePNQualitySummary.setBinContent(getEcalDQMSetupObjects(), id, doMask ? kMGood : kGood);
        }
      }
    }
  }

  DEFINE_ECALDQM_WORKER(PedestalClient);
}  // namespace ecaldqm