//*-- AUTHOR : Ilse Koenig
//*-- Created : 09/02/2010

//_HADES_CLASS_DESCRIPTION 
//////////////////////////////////////////////////////////////////////////////
// HStartParOra2Io
//
// Interface class to database Oracle for input/output of parameters needed
// by the Start detector for runs since 2010
// (uses the Oracle C/C++ precompiler)
//
//////////////////////////////////////////////////////////////////////////////
using namespace std;
#include "hstartparora2io.h"
#include "hparora2set.h"
#include "hstart2calpar.h"
#include "hstart2trb2lookup.h"
#include "TClass.h"
#include <iostream>
#include <iomanip>
#include <unistd.h>

#define SQLCA_STORAGE_CLASS extern
#define ORACA_STORAGE_CLASS extern

// Oracle communication area
#include <oraca.h>
// SQL Communications Area
#include <sqlca.h>

ClassImp(HStartParOra2Io)

#define START_MAXMODULES       10
#define START_MAXMODCELLS     128
#define START_MAXCELLS       1280
#define START_MAXTRBCHANNELS  128

HStartParOra2Io::HStartParOra2Io(HOra2Conn* pC) : HDetParOra2Io(pC) {
  // constructor
  // sets the name of the I/O class "HStartParIo"
  // gets the pointer to the connection class
  fName="HStartParIo";
  initModules=new TArrayI(START_MAXMODULES);
}

HStartParOra2Io::~HStartParOra2Io(void) {
  // destructor
  if (initModules) delete initModules;
}

Bool_t HStartParOra2Io::init(HParSet* pPar,Int_t* set) {
  // calls special read-function for each parameter container
  if (getRunStart(pPar)<0) {
    pPar->setInputVersion(-1,inputNumber);
    return kFALSE;
  }
  const Text_t* name=pPar->IsA()->GetName();
  if (strcmp(name,"HStart2Calpar")==0) return read(((HStart2Calpar*)pPar),set);
  if (strcmp(name,"HStart2Trb2Lookup")==0) return read(((HStart2Trb2Lookup*)pPar));
  cout<<"No read-interface to Oracle for parameter container "
      <<pPar->GetName()<<endl;
  return kFALSE;
}

Int_t HStartParOra2Io::write(HParSet* pPar) {
  // calls the appropriate write function for the container
  if (getRunStart(pPar)<=0) return -1;
  const Text_t* name=pPar->IsA()->GetName();
  if (strcmp(name,"HStart2Calpar")==0) return writePar((HStart2Calpar*)pPar);
  if (strcmp(name,"HStart2Trb2Lookup")==0) return writePar((HStart2Trb2Lookup*)pPar);
  cout<<"No write-interface to Oracle for parameter container "
      <<pPar->GetName()<<endl;
  return 0;
}

Bool_t HStartParOra2Io::getVersion(HParSet* pPar,Int_t& version) {
  // checks, if the parameter container needs to be reinitialized
  // reads the newest version valid for the current event file
  // returns kTRUE, if new parameters must be read
  // returns kFALSE, if no reinitialization needed or not valid version found
  HParOra2Set* oraSet=getOraSet(pPar);
  if (oraSet->contextId==-1 || runStart==-1) {
    pPar->setInputVersion(-1,inputNumber);
    version=-1;
    return kFALSE;
  }
  Int_t contVers=pPar->getInputVersion(inputNumber);
  if (contVers!=-1 && runStart>=oraSet->versDate[0] && runStart<=oraSet->versDate[1]) {
    version=contVers;
    return kFALSE;
  }
  const Char_t* containerClass=pPar->IsA()->GetName();
  oraSet->clearVersDate();
  EXEC SQL BEGIN DECLARE SECTION;
    int context;
    int vers;
    double since;
    double until;
  EXEC SQL END DECLARE SECTION;
  context=oraSet->contextId;
  EXEC SQL WHENEVER SQLERROR DO showSqlError("getVersion(HParSet*,Int_t&)");
  EXEC SQL WHENEVER NOT FOUND GOTO notfound;
  if (strcmp(containerClass,"HStart2Calpar")==0) {
    EXEC SQL SELECT version,
                    hanadate.date_to_number(valid_since),
                    hanadate.date_to_number(valid_until)
             INTO :vers, :since, :until
             FROM start_ana2.start2_calpar_vers_at_date
             WHERE context_id = :context;
  } else {
    if (strcmp(containerClass,"HStart2Trb2Lookup")==0) {
      EXEC SQL SELECT version,
                      hanadate.date_to_number(valid_since),
                      hanadate.date_to_number(valid_until)
               INTO :vers, :since, :until
               FROM start_ana2.start2_trb2lookup_vers_at_date
               WHERE context_id = :context;
    }
  }
  version=vers;
  oraSet->versDate[0]=since;
  oraSet->versDate[1]=until;
  return kTRUE;
notfound:
  pPar->setInputVersion(-1,inputNumber);
  version=-1;
  return kFALSE;
};

Bool_t HStartParOra2Io::read(HStart2Calpar* pPar, Int_t* set) {
  // reads the calibration parameters and fill the Start2Calpar container
  Int_t oraVersion=-1;
  Bool_t rc=getVersion(pPar,oraVersion);
  if (oraVersion<0) return kFALSE;
  if (oraVersion>=0&&rc==kFALSE) return kTRUE;
  pPar->clear();
  initModules->Reset();
  EXEC SQL BEGIN DECLARE SECTION;
    int vers;
    struct {
      int module[START_MAXCELLS];
      int cell[START_MAXCELLS];
      float tdcslope[START_MAXCELLS];
      float tdcoffset[START_MAXCELLS];
      float adcslope[START_MAXCELLS];
      float adcoffset[START_MAXCELLS];
    } cal;
  EXEC SQL END DECLARE SECTION;
  vers=oraVersion;
  EXEC SQL WHENEVER SQLERROR DO showSqlError("read(HStart2Calpar*,Int_t*)");
  EXEC SQL WHENEVER NOT FOUND CONTINUE;
  EXEC SQL SELECT module, cell, tdc_slope, tdc_offset, adc_slope, adc_offset
           INTO :cal
           FROM start_ana2.start2_calpar_data_view
           WHERE vers_id = :vers;
  Int_t nData=sqlca.sqlerrd[2];
  Int_t m=-1;
  for (Int_t i=0;i<nData;i++) {
    m=cal.module[i];
    if (set[m]) {
      (*pPar)[m][cal.cell[i]].fill(cal.tdcslope[i],cal.tdcoffset[i],
                                   cal.adcslope[i],cal.adcoffset[i]);
      initModules->AddAt(1,m);
    }
  }
  rc=kTRUE;
  for(Int_t i=0;i<START_MAXMODULES;i++) {
    if (set[i]==1 && initModules->At(i)==0) rc=kFALSE;
  }
  if (rc) {
    setChanged(pPar,oraVersion);
    printInfo(pPar->GetName());
  } else {
    pPar->setInputVersion(-1,inputNumber);
  }
  return rc;
}

Bool_t HStartParOra2Io::read(HStart2Trb2Lookup* pPar) {
  // reads the lookup table for the Trb2 unpacker and fill the parameter container
  Int_t oraVersion=-1;
  Bool_t rc=getVersion(pPar,oraVersion);
  if (oraVersion<0) return kFALSE;
  if (oraVersion>=0&&rc==kFALSE) return kTRUE;
  pPar->clear();
  EXEC SQL BEGIN DECLARE SECTION;
    int vers;
    struct {
      int  address[START_MAXCELLS];
      int  chan[START_MAXCELLS];
      int  module[START_MAXCELLS];
      int  cell[START_MAXCELLS];
    } lookup;
  EXEC SQL END DECLARE SECTION;
  vers=oraVersion;
  EXEC SQL WHENEVER SQLERROR DO showSqlError("read(HStart2Trb2Lookup*)");
  EXEC SQL WHENEVER NOT FOUND CONTINUE;
  EXEC SQL SELECT trbnet_address, channel,
                  module, cell
           INTO :lookup
           FROM start_ana2.start2_trb2lookup_data_view
           WHERE vers_id = :vers;
  Int_t nData=sqlca.sqlerrd[2];
  for (Int_t i=0;i<nData;i++) {
    pPar->fill(lookup.address[i],lookup.chan[i],
               lookup.module[i],lookup.cell[i]);
  }
  if (nData>0) {
    setChanged(pPar,oraVersion);
    cout<<pPar->GetName()<<" initialized from Oracle"<<endl;
    rc=kTRUE;
  } else {
    pPar->setInputVersion(-1,inputNumber);
    rc=kFALSE;
  }
  return rc;
}

Int_t HStartParOra2Io::createVers(HParSet* pPar) {
  // creates a new version for the calibration parameters
  // returns the new version
  cout<<"---------------  "<<pPar->GetName()<<"   ---------------\n";
  if (strlen(pPar->getAuthor())==0) {
    Error("createVers(HParSet*)",
          "author of parameters not defined");
    return -1;
  }
  if (strlen(pPar->getDescription())==0) {
    Error("createVers(HParSet*)",
          "descriction of parameters not defined");
    return -1;
  }
  const Char_t* contName=pPar->IsA()->GetName();
  EXEC SQL BEGIN DECLARE SECTION;
    int   vers=-1;
    int   context;
    int   run;
    char* creator;
    char* descript;
  EXEC SQL END DECLARE SECTION;
  context = getContextId(contName,pPar->getParamContext());
  if (context==-1) return -1;
  run=getActRunId();
  creator=(Char_t*)pPar->getAuthor();
  descript=(Char_t*)pPar->getDescription();
  EXEC SQL WHENEVER SQLERROR GOTO not_found;
  EXEC SQL WHENEVER NOT FOUND GOTO not_found;
  if (strcmp(contName,"HStart2Calpar")==0) {
    EXEC SQL EXECUTE
      BEGIN
        SELECT start_ana2.start2_par_query.next_version INTO :vers FROM DUAL;
        INSERT INTO start_ana2.start2_calpar_vers
                   (vers_id, orig_context_id, run_id, author, description)
            VALUES (:vers, :context, :run, :creator, :descript);
      END;
    END-EXEC;
  } else {
    if (strcmp(contName,"HStart2Trb2Lookup")==0) {
      EXEC SQL EXECUTE
        BEGIN
          SELECT start_ana2.start2_par_query.next_version INTO :vers FROM DUAL;
          INSERT INTO start_ana2.start2_trb2lookup_vers
                     (vers_id, orig_context_id, run_id, author, description)
              VALUES (:vers, :context, :run, :creator, :descript);
        END;
      END-EXEC;
    }
  }
  cout<<"Oracle version for "<<pPar->GetName()<<" created:  "<<vers<<endl;
  return vers;
not_found:
  showSqlError("createVers(HParSet*)");
  return vers;
}

Int_t HStartParOra2Io:: writePar(HStart2Calpar* pPar) {
  // creates a new version and writes the calibration parameters to Oracle
  Int_t version=createVers(pPar);
  if (version==-1) return -1;
  EXEC SQL BEGIN DECLARE SECTION;
    int module[START_MAXMODCELLS];
    int cell[START_MAXMODCELLS];
    int vers[START_MAXMODCELLS];
    float tdcslope[START_MAXMODCELLS];
    float tdcoffset[START_MAXMODCELLS];
    float adcslope[START_MAXMODCELLS];
    float adcoffset[START_MAXMODCELLS];
    int rows_to_insert;
  EXEC SQL END DECLARE SECTION;
  Int_t nCell=0;
  for(Int_t m=0; m<pPar->getSize(); m++) {
    HStart2CalparMod& rMod= (*pPar)[m];
    nCell=0;
    for(Int_t c=0; c<rMod.getSize(); c++) {
      if (nCell >= START_MAXMODCELLS) {
        Error("writePar(HStart2Calpar*)","Array size too small for module %i",m);
        rollback();
        pPar->setChanged(kFALSE);
        return -1;
      }         
      HStart2CalparCell& rCell= rMod[c];
      if (rCell.getTdcOffset()!=0.F||rCell.getAdcOffset()!=0.F
          ||rCell.getTdcSlope()!=1.F||rCell.getAdcSlope()!=1.F) {
        module[nCell]=m;
        cell[nCell]=c;
        vers[nCell]=version;
        tdcslope[nCell]=rCell.getTdcSlope();
        tdcoffset[nCell]=rCell.getTdcOffset();
        adcslope[nCell]=rCell.getAdcSlope();
        adcoffset[nCell]=rCell.getAdcOffset();
        nCell++;
      }
    }
    if (nCell==0) continue;
    rows_to_insert=nCell;
    EXEC SQL WHENEVER SQLERROR GOTO not_found;
    EXEC SQL WHENEVER NOT FOUND GOTO not_found;
    EXEC SQL FOR :rows_to_insert
        INSERT INTO start_ana2.start2_calpar_data
               (vers_id, cell_id, tdc_slope, tdc_offset, adc_slope, adc_offset )

        VALUES (:vers, start_ana2.start2_par_query.get_cell_id(:module,:cell),
                :tdcslope, :tdcoffset, :adcslope, :adcoffset);
    cout<<"module "<<m<<"    "<<rows_to_insert<<" rows inserted\n";
  }
  commit();
  pPar->setChanged(kFALSE);
  return version;
not_found:
  showSqlError("writePar(HStart2Calpar*)");
  rollback();
  pPar->setChanged(kFALSE);
  return -1;
}

Int_t HStartParOra2Io::writePar(HStart2Trb2Lookup* pPar) {
  // creates a new version and writes the lookup table to Oracle
  Int_t version=createVers(pPar);
  if (version==-1) return -1;
  EXEC SQL BEGIN DECLARE SECTION;
    int   rows_to_insert;
    int   vers[START_MAXTRBCHANNELS];
    int   address[START_MAXTRBCHANNELS];
    int   chan[START_MAXTRBCHANNELS];
    int   module[START_MAXTRBCHANNELS];
    int   cell[START_MAXTRBCHANNELS];
  EXEC SQL END DECLARE SECTION;
  Int_t nChan=0;
  Int_t arrayOffset=pPar->getArrayOffset();
  for(Int_t b=0;b<pPar->getSize();b++) {
    HStart2Trb2LookupBoard* board=(*pPar)[b];
    if (board) {
      nChan=0;
      for(Int_t t=0;t<board->getSize();t++) {
        HStart2Trb2LookupChan& rChan=(*board)[t];
        if (rChan.getModule()!=-1&&rChan.getCell()!=-1) {
          vers[nChan]=version;
          address[nChan]=arrayOffset+b;
          chan[nChan]=t;
          module[nChan]=rChan.getModule();
          cell[nChan]=rChan.getCell();
          nChan++;
        }
      }
      rows_to_insert=nChan;
      EXEC SQL WHENEVER SQLERROR GOTO errorfound;
      EXEC SQL WHENEVER NOT FOUND GOTO errorfound;
      EXEC SQL FOR :rows_to_insert
      INSERT INTO start_ana2.start2_trb2lookup_data
                  (vers_id, trbnet_address, channel_id, cell_id)
             VALUES (:vers, :address, :chan,
                     start_ana2.start2_par_query.get_cell_id(:module,:cell));
      cout<<"Trbnet-address "<<"0x"<<hex<<(arrayOffset+b)<<dec<<":  "<<rows_to_insert<<" rows inserted\n";
    }
  }
  commit();
  pPar->setChanged(kFALSE);
  return version;
errorfound:
  showSqlError("writePar(HStart2Trb2Lookup*)");
  rollback();
  pPar->setChanged(kFALSE);
  return -1;
}

void HStartParOra2Io::printInfo(const Char_t* contName) {
  // prints the sectors initialized from Oracle
  Bool_t first=kTRUE;
  for(Int_t i=0;i<START_MAXMODULES;i++) {
    if (initModules->At(i)) {
      if (first) {
        cout<<contName<<": module(s) initialized from Oracle: ";
        first=kFALSE;
      }
      cout<<i<<" ";
    }
  }
  cout<<'\n';
}