/* 
$Id$ 
*/

// This class runs the test TOF preprocessor
// It uses AliTestShuttle to simulate a full Shuttle process

// The input data is created in the functions
//   CreateDCSAliasMap() creates input that would in the same way come from DCS
//   ReadDCSAliasMap() reads from a file
//   CreateInputFilesMap() creates a list of local files, that can be accessed by the shuttle

extern TBenchmark *gBenchmark;
void TOFPreprocessor(Char_t * RunType="PHYSICS")
{
  gSystem->Load("$ALICE_ROOT/SHUTTLE/TestShuttle/libTestShuttle");

  AliLog::SetClassDebugLevel("AliTOFPreprocessor",2);
  // initialize location of CDB
  AliTestShuttle::SetMainCDB("local://$ALICE_ROOT/OCDB/SHUTTLE/TestShuttle/TestCDB");
  AliTestShuttle::SetMainRefStorage("local://$ALICE_ROOT/OCDB/SHUTTLE/TestShuttle/TestReference");

  // create AliTestShuttle instance
  Int_t nrun = 104892;
  AliTestShuttle* shuttle = new AliTestShuttle(nrun, 30, 980);
  //setting run type to physiscs
  shuttle->SetInputRunType(RunType);
  shuttle->SetTimeCreated(20);
  shuttle->SetDCSQueryOffset(20);

  // Generation of "fake" input DCS data
  TMap* dcsAliasMap = CreateDCSAliasMap();  

  // now give the alias map to the shuttle
  shuttle->SetDCSInput(dcsAliasMap);   

  // processing files. for the time being, the files are local.
  shuttle->AddInputFile(AliTestShuttle::kDAQ, "TOF", "HITS", "MON", "$ALICE_ROOT/TOF/ShuttleInput/Hits.root");
  shuttle->AddInputFile(AliTestShuttle::kDAQ, "TOF", "CALIB", "MON", "$ALICE_ROOT/TOF/ShuttleInput/Calib.root");
  shuttle->AddInputFile(AliTestShuttle::kDAQ, "TOF", "READOUT", "MON", "$ALICE_ROOT/TOF/ShuttleInput/Readout.root");
  shuttle->AddInputFile(AliTestShuttle::kDAQ, "TOF", "DELAYS", "MON", "$ALICE_ROOT/TOF/ShuttleInput/Total.root");
  shuttle->AddInputFile(AliTestShuttle::kDAQ, "TOF", "RUNLevel", "MON", "$ALICE_ROOT/TOF/ShuttleInput/Partial.root");
  shuttle->AddInputFile(AliTestShuttle::kDCS, "TOF", "TofFeeLightMap", "", "$ALICE_ROOT/TOF/ShuttleInput/TOFFEElight.20101028.133932.8000");
  shuttle->AddInputFile(AliTestShuttle::kDCS, "TOF", "TofFeeMap", "", "$ALICE_ROOT/TOF/ShuttleInput/TOFFEE.20091217.194708.105517");

  TString filename;
  TString LDCname;
  //char filename[100];
  //char LDCname[5];

  for (Int_t iLDC=0;iLDC<2;iLDC++){
    filename.Form("$ALICE_ROOT/TOF/ShuttleInput/TOFoutPulserLDC_%02i.root",iLDC*2);
    LDCname.Form("LDC%i",iLDC*2);
    shuttle->AddInputFile(AliTestShuttle::kDAQ, "TOF", "PULSER", LDCname, filename);
    filename.Form("$ALICE_ROOT/TOF/ShuttleInput/TOFoutNoiseLDC_%02i.root",iLDC*2);
    LDCname.Form("LDC%i",iLDC*2);
    shuttle->AddInputFile(AliTestShuttle::kDAQ, "TOF", "NOISE", LDCname, filename);
  }
  

  // instantiation of the preprocessor
  AliPreprocessor* pp = new AliTOFPreprocessor(shuttle);

  // preprocessing
  gBenchmark->Start("process");
  shuttle->Process();
  gBenchmark->Stop("process");
  gBenchmark->Print("process");

  
}


TMap* CreateDCSAliasMap()
{
  // Creates a DCS structure
  // The structure is the following:
  //   TMap (key --> value)
  //     <DCSAlias> --> <valueList>
  //     <DCSAlias> is a string
  //     <valueList> is a TObjArray of AliDCSValue
  //     An AliDCSValue consists of timestamp and a value in form of a AliSimpleValue

  // In this example 6 aliases exists: DCSAlias1 ... DCSAlias6
  // Each contains 1000 values randomly generated by TRandom::Gaus + 5*nAlias

  TMap* aliasMap = new TMap;
  aliasMap->SetOwner(1);

  TRandom random;
  /*
  TDatime *datime = new TDatime();
  Int_t time = datime->GetTime();
  Int_t date = datime->GetDate();
  Int_t pid  = gSystem->GetPid();
  delete datime;
  Int_t iseed = TMath::Abs(10000 * pid + time - date); 
  */


  Float_t tentHVv=6500, tentHVi=80;
  Float_t sigmaHVv=10, sigmaHVi=10;

  Float_t tent=0, sigma=0;//, thr=0;
  // to have all the aliases, decomment the following line:
  Int_t NAliases=360, NHV=90;


  // if not all the aliases are there, use this:
  //Int_t NAliases=120, NHV=90;

  TString sindex;
  TString aliasName;

  for(int nAlias=0;nAlias<NAliases;nAlias++) {

    TObjArray* valueSet = new TObjArray;
    valueSet->SetOwner(1);

    if (nAlias<NHV){
      aliasName = "tof_hv_vp_";
      sindex.Form("%02i",nAlias);
      aliasName += sindex;
      //aliasName += nAlias;
      tent=tentHVv;
      sigma=sigmaHVv;
      //      thr=thrHVv;
    }
    else if (nAlias<NHV*2){
      //      aliasName = "HVvneg";
      //aliasName += nAlias-NHV;
      aliasName = "tof_hv_vn_";
      sindex.Form("%02i",nAlias-NHV);
      aliasName += sindex;
      tent=-tentHVv;
      sigma=-sigmaHVv;
      //thr=-thrHVv;
    }
    else if (nAlias<NHV*3){
      //      aliasName = "HVcpos";
      //aliasName += nAlias-2*NHV;
      aliasName = "tof_hv_ip_";
      sindex.Form("%02i",nAlias-2*NHV);
      aliasName += sindex;
      tent=tentHVi;
      sigma=sigmaHVi;
      //thr=thrHVc;
    }
    else if (nAlias<NHV*4){
      //      aliasName = "HVcneg";
      //aliasName += nAlias-3*NHV;
      aliasName = "tof_hv_in_";
      sindex.Form("%02i",nAlias-3*NHV);
      aliasName += sindex;
      tent=-tentHVi;
      sigma=-sigmaHVi;
      //thr=-thrHVc;
    }
    // gauss generation of values 
    for (int timeStamp=0;timeStamp<6000;timeStamp+=10){
    //for (int timeStamp=0;timeStamp<1;timeStamp++){
      Float_t gaussvalue = (Float_t) (random.Gaus(tent,sigma));
      if (TMath::Abs(gaussvalue-tent)>sigma){
	AliDCSValue* dcsVal = new AliDCSValue(gaussvalue, timeStamp);
	valueSet->Add(dcsVal);
      }
    }

    aliasMap->Add(new TObjString(aliasName), valueSet);

  }




  const Int_t kNsectors = 18;
  const Int_t kNplates = 5;

  UInt_t baseWord = 0;
  UInt_t oldBaseWord = 0;

  for(int i=0;i<kNsectors;i++)
    for(int j=0;j<kNplates;j++) {

      TObjArray* valueSetHV = new TObjArray;
      valueSetHV->SetOwner(1);

      aliasName = "TOF_HVSTATUS_";
      sindex.Form("SM%02dMOD%1d",i,j);
      aliasName += sindex;


      //for (int timeStamp=0;timeStamp<6000;timeStamp+=600) {
      for (int timeStamp=0;timeStamp<1201;timeStamp+=600) {
	if (timeStamp==0 /*|| timeStamp==1200*/) {
	  baseWord = CreateHVword(i,j, kTRUE);
	  oldBaseWord = baseWord;
	  AliDCSValue* dcsVal = new AliDCSValue(baseWord, timeStamp);
	  valueSetHV->Add(dcsVal);
	}
	else {
	  if (random.Uniform(0.,1.)>=0.5) {
	    baseWord = CreateHVword(i,j, kFALSE);
	    if (baseWord<=oldBaseWord) {
	      oldBaseWord = baseWord;
	      AliDCSValue* dcsVal = new AliDCSValue(baseWord, timeStamp);
	      valueSetHV->Add(dcsVal);
	    }
	    else {
	      AliDCSValue* dcsVal = new AliDCSValue(oldBaseWord, timeStamp);
	      valueSetHV->Add(dcsVal);
	    }
	    //Info(Form(" %2d %1d %s %d %d",i,j,aliasName,timeStamp,baseWord));
	  }
	}
      }

      /*
      baseWord = CreateHVword(i,j, kTRUE);
      AliDCSValue* dcsVal0 = new AliDCSValue(baseWord, 0);
      valueSetHV->Add(dcsVal0);

      if ((i==0 && j==2) || (i==9 && j==4)) {
	baseWord = CreateHVword(i,j, kFALSE);
	AliDCSValue* dcsVal1 = new AliDCSValue(baseWord, 600);
	valueSetHV->Add(dcsVal1);
      }

      baseWord = CreateHVword(i,j, kTRUE);
      AliDCSValue* dcsVal2 = new AliDCSValue(baseWord, 1200);
      valueSetHV->Add(dcsVal2);
      */

      aliasMap->Add(new TObjString(aliasName), valueSetHV);

    }


  const Int_t kNddl = 72;
  baseWord = 0;
  oldBaseWord = 0;

  for(int i=0;i<kNddl;i++) {

    TObjArray* valueSetLV = new TObjArray;
    valueSetLV->SetOwner(1);

    aliasName = "TOF_FEACSTATUS_";
    sindex.Form("%02d",i);
    aliasName += sindex;


    //for (int timeStamp=0;timeStamp<6000;timeStamp+=600) {
    for (int timeStamp=0;timeStamp<1201;timeStamp+=400) {
      if (timeStamp==0 /*|| timeStamp==1200*/) {
	baseWord = CreateLVword(kTRUE);
	AliDCSValue* dcsVal = new AliDCSValue(baseWord, timeStamp);
	valueSetLV->Add(dcsVal);
	oldBaseWord = baseWord;
	//Info(Form(" %2d %s %d %d",i,aliasName,timeStamp,baseWord));
	}
      else {
	if (random.Uniform(0.,1.)>=0.5) {
	  baseWord = CreateLVword(kFALSE);
	  if (baseWord<=oldBaseWord) {
	    oldBaseWord = baseWord;
	    AliDCSValue* dcsVal = new AliDCSValue(baseWord, timeStamp);
	    valueSetLV->Add(dcsVal);
	  }
	  else {
	    AliDCSValue* dcsVal = new AliDCSValue(oldBaseWord, timeStamp);
	    valueSetLV->Add(dcsVal);
	  }
	  //Info(Form(" %2d %1d %s %d %d",i,j,aliasName,timeStamp,baseWord));
	}
      }
    }

    /*
    baseWord = CreateLVword(kTRUE);
    AliDCSValue* dcsVal0 = new AliDCSValue(baseWord, 0);
    valueSetLV->Add(dcsVal0);

    if (i==7 || i==9) {
      baseWord = CreateLVword(kFALSE);
      AliDCSValue* dcsVal1 = new AliDCSValue(baseWord, 400);
      valueSetLV->Add(dcsVal1);
    }
    else if (i==50 || i==35) {
      baseWord = CreateLVword(kFALSE);
      AliDCSValue* dcsVal2 = new AliDCSValue(baseWord, 800);
      valueSetLV->Add(dcsVal2);
    }

    baseWord = CreateLVword(kTRUE);
    AliDCSValue* dcsVal3 = new AliDCSValue(baseWord, 1200);
    valueSetLV->Add(dcsVal3);
    */

    aliasMap->Add(new TObjString(aliasName), valueSetLV);

  }


  return aliasMap;
}


UInt_t CreateHVword(Int_t nSector, Int_t nPlate, Bool_t isAtBorder) {
  //
  //
  //

  UInt_t baseWord = 0;
  UInt_t word = 0;
  TRandom random;

  for (Int_t iStrip=0; iStrip<AliTOFGeometry::NStrip(nPlate); iStrip++) {

    if (isAtBorder) {
      word = 1;
      if (nPlate==2 && nSector>=13 && nSector<=15)
	word = 0;
    }
    else {
      random.Uniform(0.,1.)<0.5 ?   word = 0 : word = 1;
      if (nPlate==2 && nSector>=13 && nSector<=15)
	word = 0;
      word = 0;
    }

    AliBitPacking::PackWord(word,baseWord,iStrip,iStrip);
  }

  return baseWord;

}


UInt_t CreateLVword(Bool_t isAtBorder) {
  //
  //
  //

  UInt_t baseWord = 0;
  UInt_t word = 0;
  TRandom random;

  for (Int_t iFeac=0; iFeac<8; iFeac++) {

    if (isAtBorder)
      word = 1;
    else {
      random.Uniform(0.,1.)<0.5 ?   word = 0 : word = 1;
      word = 0;
    }

    AliBitPacking::PackWord(word,baseWord,iFeac,iFeac);
  }

  return baseWord;

}


TMap* ReadDCSAliasMap()
{
  // Open a file that contains DCS input data
  // The CDB framework is used to open the file, this means the file is located
  // in $ALICE_ROOT/SHUTTLE/TestShuttle/TestCDB/<detector>/DCS/Data
  // The file contains an AliCDBEntry that contains a TMap with the DCS structure.
  // An explanation of the structure can be found in CreateDCSAliasMap()

  AliCDBEntry *entry = AliCDBManager::Instance()->Get("TOF/DCS/Data", 0);
  return dynamic_cast<TMap*> (entry->GetObject());
}

void WriteDCSAliasMap()
{
  // This writes the output from CreateDCSAliasMap to a CDB file

  TMap* dcsAliasMap = CreateDCSAliasMap();

  AliCDBMetaData metaData;
	metaData.SetBeamPeriod(0);
	metaData.SetResponsible("Chiara");
	metaData.SetComment("Test object for TOFPreprocessor.C");

  AliCDBId id("TOF/DCS/Data", 0, 0);

  // initialize location of CDB
  AliCDBManager::Instance()->SetDefaultStorage("local://$ALICE_ROOT/OCDB/SHUTTLE/TestShuttle/TestCDB");

  AliCDBManager::Instance()->Put(dcsAliasMap, id, &metaData);
}