/** @file
 * $Source: /home/cvsmanager/yoda/techmodel/CalibTrk2Reader.cpp,v $
 * $Id: CalibTrk2Reader.cpp,v 1.3 2004/07/17 20:03:38 kusanagi Exp $
 * $Author: kusanagi $
 * 
 * Implementation of the LogReader class.
* ToBeDone:
* Control the CRC for the entire data Packet not just for single records
 */

#define UINT unsigned int
#define BYTE  unsigned char
#include <string>
#include <log4cpp/Category.hh>
extern "C" {
    #include "CRC.h"
    //Passo il path verso la il file temporaneo
    extern void trkcalibpkt_(int*, char*); 

    //Struct per il passaggio di dati da e verso la chiamata fortran
    extern struct {
      int   DAQmode[6];
      int   DSPnumber[6];
      int   calibnumber[6];
      int   ncalib_event[6];
      int   ped_l1[6];
      int   ped_l2[6];
      int   ped_l3[6];
      int   sig_l1[6];
      int   sig_l2[6];
      int   sig_l3[6];
      int   nbad_l1[6];
      int   nbad_l2[6];
      int   nbad_l3[6];
      int   cal_flag[6];
      int   checksum[6];
      int   DSPbad_par[6][3072];
      float DSPped_par[6][3072];
      float DSPsig_par[6][3072];
    } trkcalib_;

#include <dirent.h>
}

#include <fstream>
#include "stdio.h"
#include "ReaderAlgorithms.h"

#include "event/CalibTrk2Event.h"

using namespace pamela;
using namespace pamela::techmodel;

static log4cpp::Category& cat = log4cpp::Category::getInstance("pamela.techmodel.CalibTrk2Reader");  

/**
 * Constructor. 
 */
CalibTrk2Reader::CalibTrk2Reader(void): 
  TechmodelAlgorithm(PacketType::CalibTrk2, "TechmodelCalibTrk2Reader") { 
  cat <<  log4cpp::Priority::DEBUG
      <<  "Constructor "
      <<  "\n " << log4cpp::CategoryStream::ENDLINE;
  calibTrk2 = new CalibTrk2Event();
}

/**
 * Get a string with the version info of the algorithm.
 */
std::string CalibTrk2Reader::GetVersionInfo(void) const {
  return 
    "$Header: /home/cvsmanager/yoda/techmodel/CalibTrk2Reader.cpp,v 1.3 2004/07/17 20:03:38 kusanagi Exp $\n";
}

/**
 * Initialize the algorithm with a special run. This will initialize the
 * event reader routines for all packet types.
 */
void CalibTrk2Reader::Init(PamelaRun *run) {
  SetInputStream(run);
  run->WriteSubPacket(this, &calibTrk2, calibTrk2->Class());
}

/**
 * Unpack the CalibTrk2 event from an input file.
 */
void CalibTrk2Reader::RunEvent(int EventNumber, long int length) {
    
    char     *subData;
    char      eventCRC[2];
    UINT16    subCRC;      //CRC of the data
    UINT16    readCRC;     //CRC read from the end of the subpacket
    long int  dataLength;
 
    //the 2 bytes subtracted belong to the final event CRC bytes
    dataLength = length - (long int)2;

    subData = new char[dataLength];
    InputFile->read(subData, sizeof(unsigned char)*dataLength);
    subCRC = CM_Compute_CRC16(0, (BYTE*)subData, dataLength);

    //took the final CRC to compare it with the previous calculated CRC of the data
    InputFile->read(eventCRC, sizeof(eventCRC));
    readCRC = (((UINT16)(eventCRC[0]<<8))&0xFF00) + (((UINT16)eventCRC[1])&0x00FF);
    
    if (subCRC == readCRC){
        int       ERROR;
    
        //Scrivo un file temporaneo per passarlo alla routine
        //Speriamo di cambiare la routine per passargli un buffer.....
        DIR *dirp;
        std::string pathDir((char*)getenv("YODA_DATA"));
        pathDir = pathDir + "/todatemp.dat";
        FILE *pfile;
        pfile = fopen((char*)pathDir.c_str(), "wb");
        fwrite(subData, 1, dataLength, pfile);
        fclose(pfile);

        //Call to the FORTRAN routin that unpack tracker events
        trkcalibpkt_(&ERROR, (char*)pathDir.c_str());
        
        //delete the temporary file
        remove((char*)pathDir.c_str());

        //Store the unpacked data
        memcpy(calibTrk2->DAQmode,     trkcalib_.DAQmode,     sizeof(calibTrk2->DAQmode));
        memcpy(calibTrk2->DSPnumber,   trkcalib_.DSPnumber,   sizeof(calibTrk2->DSPnumber));
        memcpy(calibTrk2->calibnumber, trkcalib_.calibnumber, sizeof(calibTrk2->calibnumber));
        memcpy(calibTrk2->DSPnumber, trkcalib_.ncalib_event,  sizeof(calibTrk2->ncalib_event));
        memcpy(calibTrk2->ped_l1,    trkcalib_.ped_l1,     sizeof(calibTrk2->ped_l1));
        memcpy(calibTrk2->ped_l2,    trkcalib_.ped_l2,     sizeof(calibTrk2->ped_l2));
        memcpy(calibTrk2->ped_l3,    trkcalib_.ped_l3,     sizeof(calibTrk2->ped_l3));
        memcpy(calibTrk2->sig_l1,    trkcalib_.sig_l1,     sizeof(calibTrk2->sig_l1));
        memcpy(calibTrk2->sig_l2,    trkcalib_.sig_l2,     sizeof(calibTrk2->sig_l2));
        memcpy(calibTrk2->sig_l3,    trkcalib_.sig_l3,     sizeof(calibTrk2->sig_l3));
        memcpy(calibTrk2->nbad_l1,   trkcalib_.nbad_l1,    sizeof(calibTrk2->nbad_l1));
        memcpy(calibTrk2->nbad_l2,   trkcalib_.nbad_l2,    sizeof(calibTrk2->nbad_l2));
        memcpy(calibTrk2->nbad_l3,   trkcalib_.nbad_l3,    sizeof(calibTrk2->nbad_l3));
        memcpy(calibTrk2->cal_flag,  trkcalib_.cal_flag,   sizeof(calibTrk2->cal_flag));      
   
//--------have to invert array because of FORTRAN <-> C different management of the indexes
        int tempBad_par[3072][6];
        int tempPed_par[3072][6];
        int tempSig_par[3072][6];
        memcpy(tempBad_par,trkcalib_.DSPbad_par, sizeof(tempBad_par));      
        memcpy(tempPed_par,trkcalib_.DSPped_par, sizeof(tempPed_par));      
        memcpy(tempSig_par,trkcalib_.DSPsig_par, sizeof(tempSig_par));      

        for (int i = 0; i < 6; i++){
            for (int j = 0; j < 3072; j++){
                calibTrk2->DSPbad_par[i][j] = tempBad_par[j][i];
                calibTrk2->DSPped_par[i][j] = tempPed_par[j][i];
                calibTrk2->DSPsig_par[i][j] = tempSig_par[j][i];
            }
        }
//-----------------------------------------------------------------------------------------

        cat <<  log4cpp::Priority::ERROR
            <<  "Fortran77 function trkcalibpkt error code = " << ERROR
            <<  "\n " << log4cpp::CategoryStream::ENDLINE;
        free(subData);    
    } else {
        cat <<  log4cpp::Priority::ERROR
            <<  "Wrong CRC for CalibTrk2 Packet "
            <<  "\n " << log4cpp::CategoryStream::ENDLINE;
    }
}