/data/refman/pasoursint/CMSSW_5_3_0/src/DQM/SiStripMonitorHardware/interface/SiStripSpyUtilities.h

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#ifndef DQM_SiStripMonitorHardware_SiStripSpyUtilities_H
#define DQM_SiStripMonitorHardware_SiStripSpyUtilities_H


// Standard includes.
//#include <utility>
#include <string>

#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/ESHandle.h"

#include "DataFormats/Common/interface/DetSetVector.h"
#include "DataFormats/SiStripDigi/interface/SiStripRawDigi.h"

#include "CondFormats/SiStripObjects/interface/SiStripFedCabling.h"
#include "CalibFormats/SiStripObjects/interface/SiStripDetCabling.h"
#include "CondFormats/SiStripObjects/interface/SiStripPedestals.h"
#include "CondFormats/SiStripObjects/interface/SiStripNoises.h"

// Other classes
class EventSetup;

namespace sistrip {
  
  class SpyUtilities
  {
  public:

    struct Frame {
      uint32_t detId;
      uint16_t digitalLow;
      uint16_t digitalHigh;
      uint16_t firstHeaderBit;
      uint16_t firstTrailerBit;
      float baseline;
      std::pair<bool,bool> apvErrorBit;
      std::pair<uint8_t,uint8_t> apvAddress;
    };

    struct FrameQuality {
      uint16_t minDigiRange;
      uint16_t maxDigiRange;
      uint16_t minZeroLight;
      uint16_t maxZeroLight;
      uint16_t minTickHeight;
      uint16_t maxTickHeight;
    };

    SpyUtilities();
    ~SpyUtilities();

    //get cabling for an eventSetup: internal counter to see if cabling has changed.
    const SiStripFedCabling* getCabling( const edm::EventSetup& ); 
    const SiStripDetCabling* getDetCabling( const edm::EventSetup& ); 

    edm::ESHandle<SiStripPedestals> getPedestalHandle(const edm::EventSetup& eventSetup);
    edm::ESHandle<SiStripNoises> getNoiseHandle(const edm::EventSetup& eventSetup);
    
    //fill variables from frame
    static const Frame extractFrameInfo(const edm::DetSetVector<SiStripRawDigi>::detset & channelDigis,
                                        bool aPrintDebug=false);

    static void getMajorityHeader(const edm::DetSetVector<SiStripRawDigi> * aInputDigis,
                                  uint16_t & firstHeaderBit,
                                  bool printResult=true);

    //check frame is valid
    static const bool isValid(const Frame & aFrame,
                              const FrameQuality & aQuality,
                              const uint16_t aExpectedPos);

    //extract range, threshold and apvAddress
    static const uint16_t range(const Frame & aFrame);

    static const uint16_t threshold(const Frame & aFrame);

    static const uint8_t extractAPVaddress(const Frame & aFrame);

    //find position of the first header and trailer bit
    static const uint16_t findHeaderBits(const edm::DetSetVector<SiStripRawDigi>::detset & channelDigis,
                                         const uint16_t threshold);

    static const uint16_t findTrailerBits(const edm::DetSetVector<SiStripRawDigi>::detset & channelDigis,
                                          const uint16_t threshold);

    //find both APV addresses and error bits
    static const std::pair<bool,bool> 
      findAPVErrorBits(const edm::DetSetVector<SiStripRawDigi>::detset & channelDigis,
                       const uint16_t threshold,
                       const uint16_t aFirstBits);

    static const std::pair<uint8_t,uint8_t> 
      findAPVAddresses(const edm::DetSetVector<SiStripRawDigi>::detset & channelDigis,
                       const uint16_t threshold,
                       const uint16_t aFirstBits);

    static std::string print(const Frame & aFrame,
                             std::string aErr);

    static void fedIndex(uint32_t   aFedIndex,
                         uint16_t & aFedId,
                         uint16_t & aFedChannel);

    static std::pair<uint16_t,uint32_t> findMajorityValue(std::vector<uint16_t> & values,
                                                          const uint16_t aFedId = 0);

    static void fillFEDMajorities(const std::map<uint32_t,uint32_t>& channelValues, 
                                  std::vector<uint32_t> & fedMajoritiesToFill);

  private:
    // Cabling
    const SiStripFedCabling* cabling_;  
    uint32_t cacheId_;                  

    // DetCabling
    const SiStripDetCabling* detCabling_;  
    uint32_t cacheIdDet_;                  

    //used to see if the pedestals have changed.
    uint32_t pedsCacheId_;
    edm::ESHandle<SiStripPedestals> pedsHandle_;

    //used to see if the noises have changed.
    uint32_t noiseCacheId_;
    edm::ESHandle<SiStripNoises> noiseHandle_;

  };
    
}

#endif // DQM_SiStripMonitorHardware_SiStripSpyUtilities_H