#include "CondTools/Ecal/interface/EcalTPGFineGrainEBIdMapHandler.h"

#include "OnlineDB/EcalCondDB/interface/EcalLogicID.h"
#include "OnlineDB/EcalCondDB/interface/RunTPGConfigDat.h"
#include "OnlineDB/EcalCondDB/interface/FEConfigMainInfo.h"
#include "OnlineDB/EcalCondDB/interface/FEConfigFgrInfo.h"
#include "FWCore/ParameterSet/interface/ParameterSetfwd.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"

#include <iostream>
#include <fstream>

#include <ctime>
#include <unistd.h>

#include <string>
#include <cstdio>
#include <typeinfo>
#include <sstream>

popcon::EcalTPGFineGrainEBIdMapHandler::EcalTPGFineGrainEBIdMapHandler(const edm::ParameterSet &ps)
    : m_name(ps.getUntrackedParameter<std::string>("name", "EcalTPGFineGrainEBIdMapHandler")) {
  edm::LogInfo("EcalTPGFineGrainEBIdMapHandler") << "EcalTPGFineGrainEBIdMap Source handler constructor.";
  m_firstRun = static_cast<unsigned int>(atoi(ps.getParameter<std::string>("firstRun").c_str()));
  m_lastRun = static_cast<unsigned int>(atoi(ps.getParameter<std::string>("lastRun").c_str()));
  m_sid = ps.getParameter<std::string>("OnlineDBSID");
  m_user = ps.getParameter<std::string>("OnlineDBUser");
  m_pass = ps.getParameter<std::string>("OnlineDBPassword");
  m_locationsource = ps.getParameter<std::string>("LocationSource");
  m_location = ps.getParameter<std::string>("Location");
  m_gentag = ps.getParameter<std::string>("GenTag");
  m_runtype = ps.getParameter<std::string>("RunType");

  edm::LogInfo("EcalTPGFineGrainEBIdMapHandler") << m_sid << "/" << m_user << "/" << m_location << "/" << m_gentag;
}

popcon::EcalTPGFineGrainEBIdMapHandler::~EcalTPGFineGrainEBIdMapHandler() {}

void popcon::EcalTPGFineGrainEBIdMapHandler::getNewObjects() {
  edm::LogInfo("EcalTPGFineGrainEBIdMapHandler") << "Started GetNewObjects!!!";

  //check whats already inside of database
  if (tagInfo().size) {
    //check whats already inside of database
    std::cout << "got offlineInfo = " << std::endl;
    std::cout << "tag name = " << tagInfo().name << std::endl;
    std::cout << "size = " << tagInfo().size << std::endl;
  } else {
    std::cout << " First object for this tag " << std::endl;
  }

  unsigned int max_since = 0;
  max_since = static_cast<unsigned int>(tagInfo().lastInterval.since);
  edm::LogInfo("EcalTPGFineGrainEBIdMapHandler") << "max_since : " << max_since;
  Ref fgrIdMap_db = lastPayload();

  edm::LogInfo("EcalTPGFineGrainEBIdMapHandler") << "retrieved last payload ";

  edm::LogInfo("EcalTPGFineGrainEBIdMapHandler") << "WOW: we just retrieved the last valid record from DB ";

  // here we retrieve all the runs after the last from online DB

  edm::LogInfo("EcalTPGFineGrainEBIdMapHandler") << "Retrieving run list from ONLINE DB ... ";

  edm::LogInfo("EcalTPGFineGrainEBIdMapHandler") << "Making connection...";
  econn = new EcalCondDBInterface(m_sid, m_user, m_pass);
  edm::LogInfo("EcalTPGFineGrainEBIdMapHandler") << "Done.";

  if (!econn) {
    std::cout << " connection parameters " << m_sid << "/" << m_user << std::endl;
    //	    cerr << e.what() << std::endl;
    throw cms::Exception("OMDS not available");
  }

  LocationDef my_locdef;
  my_locdef.setLocation(m_location);

  RunTypeDef my_rundef;
  my_rundef.setRunType(m_runtype);

  RunTag my_runtag;
  my_runtag.setLocationDef(my_locdef);
  my_runtag.setRunTypeDef(my_rundef);
  my_runtag.setGeneralTag(m_gentag);

  readFromFile("last_tpg_fgrIdMap_settings.txt");

  unsigned int min_run;

  if (m_firstRun < m_i_run_number) {
    min_run = m_i_run_number + 1;
  } else {
    min_run = m_firstRun;
  }
  if (min_run < max_since) {
    min_run = max_since + 1;  // we have to add 1 to the last transferred one
  }

  std::cout << "m_i_run_number" << m_i_run_number << "m_firstRun " << m_firstRun << "max_since " << max_since
            << std::endl;

  unsigned int max_run = m_lastRun;
  edm::LogInfo("EcalTPGFineGrainEBIdMapHandler") << "min_run= " << min_run << "max_run= " << max_run;

  RunList my_list;
  my_list = econn->fetchGlobalRunListByLocation(my_runtag, min_run, max_run, my_locdef);
  //        my_list=econn->fetchRunListByLocation(my_runtag,min_run,max_run,my_locdef);
  printf("after fetchRunList\n");
  fflush(stdout);

  std::vector<RunIOV> run_vec = my_list.getRuns();
  size_t num_runs = run_vec.size();

  std::cout << "number of runs is : " << num_runs << std::endl;

  unsigned int irun;
  if (num_runs > 0) {
    for (size_t kr = 0; kr < run_vec.size(); kr++) {
      irun = static_cast<unsigned int>(run_vec[kr].getRunNumber());

      std::cout << " **************** " << std::endl;
      std::cout << " **************** " << std::endl;
      std::cout << " run= " << irun << std::endl;

      // retrieve the data :
      std::map<EcalLogicID, RunTPGConfigDat> dataset;
      econn->fetchDataSet(&dataset, &run_vec[kr]);

      std::string the_config_tag = "";
      int the_config_version = 0;

      std::map<EcalLogicID, RunTPGConfigDat>::const_iterator it;

      int nr = 0;
      for (it = dataset.begin(); it != dataset.end(); it++) {
        ++nr;
        EcalLogicID ecalid = it->first;
        RunTPGConfigDat dat = it->second;
        the_config_tag = dat.getConfigTag();
        the_config_version = dat.getVersion();
      }

      // it is all the same for all SM... get the last one

      std::cout << " run= " << irun << " tag " << the_config_tag << " version=" << the_config_version << std::endl;

      // here we should check if it is the same as previous run.

      if ((the_config_tag != m_i_tag || the_config_version != m_i_version) && nr > 0) {
        std::cout << "the tag is different from last transferred run ... retrieving last config set from DB"
                  << std::endl;

        FEConfigMainInfo fe_main_info;
        fe_main_info.setConfigTag(the_config_tag);
        fe_main_info.setVersion(the_config_version);

        try {
          std::cout << " before fetch config set" << std::endl;
          econn->fetchConfigSet(&fe_main_info);
          std::cout << " after fetch config set" << std::endl;

          // now get TPGFineGrainEBIdMap
          int fgrId = fe_main_info.getFgrId();
          if (fgrId != m_i_fgrIdMap) {
            FEConfigFgrInfo fe_fgr_info;
            fe_fgr_info.setId(fgrId);
            econn->fetchConfigSet(&fe_fgr_info);
            std::map<EcalLogicID, FEConfigFgrGroupDat> dataset_TpgFineGrainEB;
            econn->fetchDataSet(&dataset_TpgFineGrainEB, &fe_fgr_info);
            edm::LogInfo("EcalTPGFineGrainEBIdMapHandler") << "Got object!";
            EcalTPGFineGrainEBIdMap *fgrMap = new EcalTPGFineGrainEBIdMap;
            typedef std::map<EcalLogicID, FEConfigFgrGroupDat>::const_iterator CIfefgr;
            EcalLogicID ecid_xt;
            FEConfigFgrGroupDat rd_fgr;

            for (CIfefgr p = dataset_TpgFineGrainEB.begin(); p != dataset_TpgFineGrainEB.end(); p++) {
              ecid_xt = p->first;
              rd_fgr = p->second;

              std::string ecid_name = ecid_xt.getName();

              EcalTPGFineGrainConstEB f;
              unsigned int ThrL = (unsigned int)rd_fgr.getThreshLow();
              unsigned int ThrH = (unsigned int)rd_fgr.getThreshHigh();
              unsigned int RatioL = (unsigned int)rd_fgr.getRatioLow();
              unsigned int RatioH = (unsigned int)rd_fgr.getRatioHigh();
              unsigned int LutConfId = (unsigned int)rd_fgr.getLUTValue();
              // I have exchanged the values to see if it works
              f.setValues(RatioL, RatioH, ThrL, ThrH, LutConfId);
              fgrMap->setValue(rd_fgr.getFgrGroupId(), f);
            }

            Time_t snc = (Time_t)irun;
            m_to_transfer.push_back(std::make_pair((EcalTPGFineGrainEBIdMap *)fgrMap, snc));

            m_i_run_number = irun;
            m_i_tag = the_config_tag;
            m_i_version = the_config_version;
            m_i_fgrIdMap = fgrId;

            writeFile("last_tpg_fgrIdMap_settings.txt");

          } else {
            m_i_run_number = irun;
            m_i_tag = the_config_tag;
            m_i_version = the_config_version;

            writeFile("last_tpg_fgrIdMap_settings.txt");

            std::cout << " even if the tag/version is not the same, the fgrIdMap is the same -> no transfer needed "
                      << std::endl;
          }

        }

        catch (std::exception &e) {
          std::cout << "ERROR: THIS CONFIG DOES NOT EXIST: tag=" << the_config_tag << " version=" << the_config_version
                    << std::endl;
          std::cout << e.what() << std::endl;
          m_i_run_number = irun;
        }
        std::cout << " **************** " << std::endl;

      } else if (nr == 0) {
        m_i_run_number = irun;
        std::cout << " no tag saved to RUN_TPGCONFIG_DAT by EcalSupervisor -> no transfer needed " << std::endl;
        std::cout << " **************** " << std::endl;
      } else {
        m_i_run_number = irun;
        m_i_tag = the_config_tag;
        m_i_version = the_config_version;
        std::cout << " the tag/version is the same -> no transfer needed " << std::endl;
        std::cout << " **************** " << std::endl;
        writeFile("last_tpg_fgrIdMap_settings.txt");
      }
    }
  }

  delete econn;
  edm::LogInfo("EcalTPGFineGrainEBIdMapHandler") << "Ecal - > end of getNewObjects -----------";
}

void popcon::EcalTPGFineGrainEBIdMapHandler::readFromFile(const char *inputFile) {
  //-------------------------------------------------------------

  m_i_tag = "";
  m_i_version = 0;
  m_i_run_number = 0;
  m_i_fgrIdMap = 0;

  FILE *inpFile;  // input file
  inpFile = fopen(inputFile, "r");
  if (!inpFile) {
    edm::LogError("EcalTPGFineGrainEBIdMapHandler") << "*** Can not open file: " << inputFile;
    return;
  }

  char line[256];

  std::ostringstream str;

  fgets(line, 255, inpFile);
  m_i_tag = to_string(line);
  str << "gen tag " << m_i_tag << std::endl;  // should I use this?

  fgets(line, 255, inpFile);
  m_i_version = atoi(line);
  str << "version= " << m_i_version << std::endl;

  fgets(line, 255, inpFile);
  m_i_run_number = atoi(line);
  str << "run_number= " << m_i_run_number << std::endl;

  fgets(line, 255, inpFile);
  m_i_fgrIdMap = atoi(line);
  str << "fgrIdMap_config= " << m_i_fgrIdMap << std::endl;

  fclose(inpFile);  // close inp. file
}

void popcon::EcalTPGFineGrainEBIdMapHandler::writeFile(const char *inputFile) {
  //-------------------------------------------------------------

  std::ofstream myfile;
  myfile.open(inputFile);
  myfile << m_i_tag << std::endl;
  myfile << m_i_version << std::endl;
  myfile << m_i_run_number << std::endl;
  myfile << m_i_fgrIdMap << std::endl;

  myfile.close();
}