#ifndef EventFilter_CSCRawToDigi_CSCDCCExaminer_h
#define EventFilter_CSCRawToDigi_CSCDCCExaminer_h
#include <set>
#include <map>
#include <vector>
#include <string>
#ifdef LOCAL_UNPACK
#include <iostream>
#else
#include <ostream>
#endif

#include "DataFormats/CSCDigi/interface/CSCDCCFormatStatusDigi.h"

class CSCDCCExaminer {
public:
  const uint16_t nERRORS, nWARNINGS, nPAYLOADS, nSTATUSES;

private:
  std::vector<const char*> sERROR, sWARNING, sERROR_, sWARNING_, sDMBExpectedPayload, sDMBEventStaus;
  ExaminerStatusType bERROR, bWARNING;
  ExaminerStatusType bSUM_ERROR, bSUM_WARNING;  // Summary flags for errors and warnings
  bool fERROR[29];                              //[nERRORS];
  bool fWARNING[5];                             //[nWARNINGS];
  bool fSUM_ERROR[29];                          //[nERRORS];
  bool fSUM_WARNING[5];                         //[nWARNINGS];

  std::set<CSCIdType> fCHAMB_ERR[29];                      // Set of chambers which contain particular error
  std::set<CSCIdType> fCHAMB_WRN[5];                       // Set of chambers which contain particular warning
  std::map<CSCIdType, ExaminerStatusType> bCHAMB_ERR;      // chamber <=> errors in bits
  std::map<CSCIdType, ExaminerStatusType> bCHAMB_WRN;      // chamber <=> errors in bits
  std::map<CSCIdType, ExaminerStatusType> bCHAMB_PAYLOAD;  //
  std::map<CSCIdType, ExaminerStatusType> bCHAMB_STATUS;   //
  std::map<DDUIdType, ExaminerStatusType> bDDU_ERR;        // ddu     <-> errors in bits
  std::map<DDUIdType, ExaminerStatusType> bDDU_WRN;        // ddu     <-> errors in bits

#ifdef LOCAL_UNPACK
  class OStream : public std::ostream {
  private:
    class buffer : public std::streambuf {};
    buffer buff;
    std::streambuf* stream;
    std::streambuf* null;
    std::string name;

  public:
    void show(void) { rdbuf(stream); }
    void hide(void) { rdbuf(null); }
    void sign(std::string nm) { name = nm; }
    void sign(const char* nm) { name = nm; }

    void redirect(std::ostream& str) {
      stream = str.rdbuf();
      tie(&str);
      if (rdbuf() != null)
        rdbuf(stream);
    }

    template <class T>
    std::ostream& operator<<(const T& val) {
      return (*(std::ostream*)this) << name << val;
    }

    OStream(void) : std::ostream(std::cout.rdbuf()), buff(), stream(std::cout.rdbuf()), null(&buff), name("") {}
    OStream(std::ostream& str) : std::ostream(str.rdbuf()), buff(), stream(str.rdbuf()), null(&buff), name("") {}
  };

  OStream COUT, CERR;
#endif

  CSCIdType currentChamber;  // ( (CrateNumber<<4) + DMBslot ) specifies chamber

  const uint16_t *buf_2, *buf_1, *buf0, *buf1, *buf2;
  uint16_t tmpbuf[16];

  bool fDCC_Header;
  bool fDCC_Trailer;
  bool fDDU_Header;
  bool fDDU_Trailer;
  bool fDMB_Header;
  bool fDMB_Trailer;
  bool fALCT_Header;
  bool fTMB_Header;
  bool fTMB_Format2007;
  bool fALCT_Format2007;
  bool fFormat2013;

  bool uniqueALCT, uniqueTMB;  // Do not merge two DMBs if Trailer of the first and Header of the second are lost

  bool DAV_ALCT;          // ...
  bool DAV_TMB;           // Check if DAV bits lie
  int DAV_CFEB;           // ...
  int DAV_DMB;            // ...
  int DMB_Active, nDMBs;  // ...

public:
  uint32_t cntDDU_Headers;
  uint32_t cntDDU_Trailers;
  std::map<CSCIdType, uint32_t> cntCHAMB_Headers;
  std::map<CSCIdType, uint32_t> cntCHAMB_Trailers;

private:
  void clear();
  void zeroCounts();
  void sync_stats();
  /// checks DAV_ALCT, DAV_TMB, and DAV_CFEB
  void checkDAVs();
  void checkTriggerHeadersAndTrailers();

  inline int scanbuf(const uint16_t*& buf, int32_t length, uint16_t sig, uint16_t mask = 0xFFFF);

  uint32_t DDU_WordsSinceLastHeader;
  uint32_t DDU_WordCount;
  uint32_t DDU_WordMismatch_Occurrences;
  uint32_t DDU_WordsSinceLastTrailer;

  uint32_t ALCT_WordsSinceLastHeader;
  uint32_t ALCT_WordsSinceLastHeaderZeroSuppressed;
  uint32_t ALCT_WordCount;
  uint32_t ALCT_WordsExpected;
  uint32_t ALCT_WordsBeforeRaw;  /// number of ALCT words before anode raw data
  uint32_t ALCT_ZSE;             /// check zero suppression mode
  uint32_t nWG_round_up;         /// to decode if zero suppression enabled

  uint32_t TMB_WordsSinceLastHeader;
  uint32_t TMB_WordCount;
  uint32_t TMB_WordsExpected;
  uint32_t TMB_Tbins;
  uint32_t TMB_WordsRPC;
  uint32_t TMB_WordsGEM;
  uint32_t TMB_Firmware_Revision;
  uint32_t DDU_Firmware_Revision;

  uint32_t CFEB_SampleWordCount;
  uint32_t CFEB_SampleCount;
  uint32_t CFEB_BSampleCount;

  bool checkCrcALCT;
  uint32_t ALCT_CRC;
  bool checkCrcTMB;
  uint32_t TMB_CRC;
  bool checkCrcCFEB;
  uint32_t CFEB_CRC;

  bool modeDDUonly;
  DDUIdType sourceID;
  ExaminerMaskType examinerMask;

  //int headerDAV_Active; // Obsolete since 16.09.05

  // data blocks:
  std::map<DDUIdType, const uint16_t*> dduBuffers;                        // < DDUsourceID, pointer >
  std::map<DDUIdType, std::map<CSCIdType, const uint16_t*> > dmbBuffers;  // < DDUsourceID, < DMBid, pointer > >
  std::map<DDUIdType, uint32_t> dduOffsets;                               // < DDUsourceID, pointer_offset >
  std::map<DDUIdType, std::map<CSCIdType, uint32_t> > dmbOffsets;         // < DDUsourceID, < DMBid, pointer_offset > >
  std::map<DDUIdType, uint32_t> dduSize;                                  // < DDUsourceID, block_size >
  std::map<DDUIdType, std::map<CSCIdType, uint32_t> > dmbSize;            // < DDUsourceID, < DMBid, block_size > >
  const uint16_t* buffer_start;

public:
#ifdef LOCAL_UNPACK
  OStream& output1(void) { return COUT; }
  OStream& output2(void) { return CERR; }
#endif

  int32_t check(const uint16_t*& buffer, int32_t length);

  void setMask(ExaminerMaskType mask) { examinerMask = mask; }
  ExaminerMaskType getMask() const { return examinerMask; }

  ExaminerStatusType errors(void) const { return bSUM_ERROR; }
  ExaminerStatusType warnings(void) const { return bSUM_WARNING; }

  const char* errName(int num) const {
    if (num >= 0 && num < nERRORS)
      return sERROR[num];
    else
      return "";
  }
  const char* wrnName(int num) const {
    if (num >= 0 && num < nWARNINGS)
      return sWARNING[num];
    else
      return "";
  }

  const char* errorName(int num) const {
    if (num >= 0 && num < nERRORS)
      return sERROR_[num];
    else
      return "";
  }
  const char* warningName(int num) const {
    if (num >= 0 && num < nWARNINGS)
      return sWARNING_[num];
    else
      return "";
  }

  const char* payloadName(int num) const {
    if (num >= 0 && num < nPAYLOADS)
      return sDMBExpectedPayload[num];
    else
      return "";
  }
  const char* statusName(int num) const {
    if (num >= 0 && num < nSTATUSES)
      return sDMBEventStaus[num];
    else
      return "";
  }

  bool error(int num) const {
    if (num >= 0 && num < nERRORS)
      return fSUM_ERROR[num];
    else
      return false;
  }
  bool warning(int num) const {
    if (num >= 0 && num < nWARNINGS)
      return fSUM_WARNING[num];
    else
      return false;
  }

  std::set<CSCIdType> chambersWithError(int num) const {
    if (num >= 0 && num < nERRORS)
      return fCHAMB_ERR[num];
    else
      return std::set<int>();
  }
  std::set<CSCIdType> chambersWithWarning(int num) const {
    if (num >= 0 && num < nWARNINGS)
      return fCHAMB_WRN[num];
    else
      return std::set<int>();
  }

  ExaminerStatusType payloadForChamber(CSCIdType chamber) const {
    std::map<CSCIdType, ExaminerStatusType>::const_iterator item = bCHAMB_PAYLOAD.find(chamber);
    if (item != bCHAMB_PAYLOAD.end())
      return item->second;
    else
      return 0;
  }

  ExaminerStatusType statusForChamber(CSCIdType chamber) const {
    std::map<CSCIdType, ExaminerStatusType>::const_iterator item = bCHAMB_STATUS.find(chamber);
    if (item != bCHAMB_STATUS.end())
      return item->second;
    else
      return 0;
  }

  ExaminerStatusType errorsForChamber(CSCIdType chamber) const {
    std::map<CSCIdType, ExaminerStatusType>::const_iterator item = bCHAMB_ERR.find(chamber);
    /// Print (for debugging, to be removed)

    // for(item =bCHAMB_ERR.begin() ; item !=bCHAMB_ERR.end() ; item++)
    //std::cout << " Ex-errors: " << std::hex << (*item).second << std::dec << std::endl;

    item = bCHAMB_ERR.find(chamber);
    if (item != bCHAMB_ERR.end())
      return item->second;
    else
      return 0;
  }

  ExaminerStatusType warningsForChamber(CSCIdType chamber) const {
    std::map<CSCIdType, ExaminerStatusType>::const_iterator item = bCHAMB_WRN.find(chamber);
    if (item != bCHAMB_WRN.end())
      return item->second;
    else
      return 0;
  }

  ExaminerStatusType errorsForDDU(DDUIdType dduSourceID) const {
    std::map<DDUIdType, ExaminerStatusType>::const_iterator item = bDDU_ERR.find(dduSourceID);
    if (item != bDDU_ERR.end())
      return item->second;
    else
      return 0;
  }
  ExaminerStatusType warningsForDDU(DDUIdType dduSourceID) const {
    std::map<DDUIdType, ExaminerStatusType>::const_iterator item = bDDU_WRN.find(dduSourceID);
    if (item != bDDU_WRN.end())
      return item->second;
    else
      return 0;
  }
  std::vector<DDUIdType> listOfDDUs(void) const {
    std::vector<DDUIdType> DDUs;
    std::map<DDUIdType, ExaminerStatusType>::const_iterator item = bDDU_ERR.begin();
    while (item != bDDU_ERR.end()) {
      DDUs.push_back(item->first);
      item++;
    }
    return DDUs;
  }

  std::map<DDUIdType, ExaminerStatusType> errorsDetailedDDU(void) const { return bDDU_ERR; }

  std::map<CSCIdType, ExaminerStatusType> errorsDetailed(void) const { return bCHAMB_ERR; }
  std::map<CSCIdType, ExaminerStatusType> warningsDetailed(void) const { return bCHAMB_WRN; }
  std::map<CSCIdType, ExaminerStatusType> payloadDetailed(void) const { return bCHAMB_PAYLOAD; }
  std::map<CSCIdType, ExaminerStatusType> statusDetailed(void) const { return bCHAMB_STATUS; }

  void crcALCT(bool enable);
  void crcTMB(bool enable);
  void crcCFEB(bool enable);

  void modeDDU(bool enable);

  bool isDDUmode() { return modeDDUonly; };

  DDUIdType dduSourceID(void) { return sourceID; }

  std::map<DDUIdType, const uint16_t*> DDU_block(void) const { return dduBuffers; }
  std::map<DDUIdType, std::map<CSCIdType, const uint16_t*> > DMB_block(void) const { return dmbBuffers; }

  std::map<DDUIdType, uint32_t> DDU_ptrOffsets(void) const { return dduOffsets; }
  std::map<DDUIdType, std::map<CSCIdType, uint32_t> > DMB_ptrOffsets(void) const { return dmbOffsets; }

  std::map<DDUIdType, uint32_t> DDU_size(void) const { return dduSize; }
  std::map<DDUIdType, std::map<CSCIdType, uint32_t> > DMB_size(void) const { return dmbSize; }

  CSCDCCExaminer(ExaminerMaskType mask = 0x1);
  ~CSCDCCExaminer(void) {}
};

#endif