/** @file
 * $Source: /home/cvsmanager/yoda/techmodel/RunHeaderReader.cpp,v $
 * $Id: RunHeaderReader.cpp,v 2.0 2004/09/21 20:50:54 kusanagi Exp $
 * $Author: kusanagi $
 * 
 * Implementation of the RunHeader class.
*/


#define UINT unsigned int
#define BYTE  unsigned char
#include <string>
#include <log4cxx/logger.h>
extern "C" {
#include <sys/time.h>
#include "CRC.h"
}

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

#include "event/RunHeaderEvent.h"

using namespace pamela;
using namespace pamela::techmodel;

static log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger(_T("pamela.techmodel.RunHeaderReader"));

/**
 * Constructor. 
 */
RunHeaderReader::RunHeaderReader(void): 
  TechmodelAlgorithm(PacketType::Log, "TechmodelRunHeaderReader") { 
  logger->debug(_T("Constructor"));
  RunHeader = new RunHeaderEvent();
}

/**
 * Get a string with the version info of the algorithm.
 */
std::string RunHeaderReader::GetVersionInfo(void) const {
  return 
    "$Header: /home/cvsmanager/yoda/techmodel/RunHeaderReader.cpp,v 2.0 2004/09/21 20:50:54 kusanagi Exp $\n";
}

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

/**
 * Unpack the RunHeader event from an input file.
 */
void RunHeaderReader::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){
    RunHeader->RM_ACQ_SETTING_MODE = (BYTE)subData[0];
    RunHeader->OBT_TIME_SYNC       = (((UINT32)subData[1]<<24)&0xFF000000) + (((UINT32)subData[2]<<16)&0x00FF0000) +  (((UINT32)subData[3]<<8)&0x0000FF00) + (((UINT32)subData[4])&0x000000FF);
    RunHeader->LAST_TYME_SYNC_INFO = (((UINT32)subData[5]<<24)&0xFF000000) + (((UINT32)subData[6]<<16)&0x00FF0000) +  (((UINT32)subData[7]<<8)&0x0000FF00) + (((UINT32)subData[8])&0x000000FF);
    RunHeader->FAVOURITE_WORKING_SCHEDULE = (BYTE)subData[9];
    RunHeader->EFFECTIVE_WORKING_SCHEDULE = (BYTE)subData[10];
    RunHeader->PRH_VAR_TRIGGER_MODE_A  = (((UINT32)subData[11]<<24)&0xFF000000) + (((UINT32)subData[12]<<16)&0x00FF0000) +  (((UINT32)subData[13]<<8)&0x0000FF00) + (((UINT32)subData[14])&0x000000FF);
    RunHeader->PRH_VAR_TRIGGER_MODE_B  = (((UINT32)subData[15]<<24)&0xFF000000) + (((UINT32)subData[16]<<16)&0x00FF0000) +  (((UINT32)subData[17]<<8)&0x0000FF00) + (((UINT32)subData[18])&0x000000FF);
    RunHeader->RM_ACQ_AFTER_CALIB      = (BYTE)subData[19];
    } else {
        logger->warn(_T("Wrong CRC for RunHeader Packet "));
    }
    
    
}