/* 
$Id$ 
*/

// 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.so");

  AliLog::SetClassDebugLevel("AliTOFPreprocessor",1);
  // initialize location of CDB
  AliTestShuttle::SetMainCDB("local://$ALICE_ROOT/SHUTTLE/TestShuttle/TestCDB");
  AliTestShuttle::SetMainRefStorage("local://$ALICE_ROOT/SHUTTLE/TestShuttle/TestReference");

  // create AliTestShuttle instance
  AliTestShuttle* shuttle = new AliTestShuttle(0, 0, 1000);
  //setting run type to physiscs
  shuttle->SetInputRunType(RunType);

  // 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", "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", "TofFeeMap", "", "$ALICE_ROOT/TOF/ShuttleInput/TOFFEE.20080310.164003.4001");
  char filename[100];
  char LDCname[5];

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

  // checking the file which should have been created  
  AliCDBEntry* chkEntry = AliCDBManager::Instance()->GetStorage(AliShuttleInterface::GetMainCDB())->Get("TOF/Calib/ParOnline", 0);
  if (!chkEntry)
  {
    printf("The file is not there. Something went wrong.\n");
    return;
  }

  AliTOFDataDCS* output = dynamic_cast<AliTOFDataDCS*> (chkEntry->GetObject());
  // If everything went fine, draw the result
  if (output)
    printf("Output found.\n");
  //    output->Draw();
  
}

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 thrHVv=7.75, thrHVc=3, thrLVv=2.75, thrLVc=2.5,
  //thrFEEthr=1.5, thrFEEt=10, thrTemp=35, thrPress=1000;
  //Float_t tentHVv=6.75, tentHVc=2, tentLVv=1.75, tentLVc=1.5,
  //  tentFEEthr=0.5, te    result=0;
  //ntFEEt=20, tentTemp=25, tentPress=900;
  //Float_t sigmaHVv=1, sigmaHVc=0.25, sigmaLVv=0.25, sigmaLVc=0.25,
  //  sigmaFEEthr=0.05, sigmaFEEt=5, sigmaTemp=1, sigmaPress=10;

  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;

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

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

    TString sindex;
    TString aliasName;
    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<1000;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);
  }

  return aliasMap;
}

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/SHUTTLE/TestShuttle/TestCDB");

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