#include <utility>

#include "DQMOffline/Trigger/interface/HLTTauDQMPlotter.h"

#include "Math/GenVector/VectorUtil.h"

HLTTauDQMPlotter::HLTTauDQMPlotter(const edm::ParameterSet& pset, std::string dqmBaseFolder)
    : dqmFullFolder_(std::move(dqmBaseFolder)), configValid_(false) {
  dqmFolder_ = pset.getUntrackedParameter<std::string>("DQMFolder");
  dqmFullFolder_ += "/";
  dqmFullFolder_ += dqmFolder_;
  configValid_ = true;
}

HLTTauDQMPlotter::HLTTauDQMPlotter(const std::string& dqmFolder, const std::string& dqmBaseFolder)
    : dqmFullFolder_(dqmBaseFolder + "/" + dqmFolder), dqmFolder_(dqmFolder), configValid_(true) {}

HLTTauDQMPlotter::~HLTTauDQMPlotter() = default;

std::pair<bool, LV> HLTTauDQMPlotter::match(const LV& jet, const LVColl& McInfo, double dr) {
  bool matched = false;
  LV out;
  for (auto const& it : McInfo) {
    double delta = ROOT::Math::VectorUtil::DeltaR(jet, it);
    if (delta < dr) {
      matched = true;
      out = it;
      break;
    }
  }
  return std::pair<bool, LV>(matched, out);
}