#include "softwareParmela.h"
#include "abstractElement.h"
#include "parmelaParticle.h"
#include "mathematicalConstants.h"
#include "PhysicalConstants.h"
#include "dataManager.h"
#include "mixedTools.h"
//#include "nomDeLogiciel.h"
softwareParmela::softwareParmela() : abstractSoftware()
{
  nameOfSoftware_ = nomDeLogiciel("parmela");
}

softwareParmela::softwareParmela(string inputFileName, globalParameters* globals, dataManager* dt) : abstractSoftware(inputFileName, globals, dt)
{
  nameOfSoftware_ = nomDeLogiciel("parmela");
}

void softwareParmela::setRelativeParmelaElementIndices() {
  relativeParmelaElementIndices_.clear();
  relativeParmelaElementIndices_.resize(numeroFin_ - numeroDeb_ + 1, -1);
  cout << " setRelativeParmelaElementIndices() taille a priori : " << relativeParmelaElementIndices_.size() << endl;
  abstractElement* elPtr = dataManager_->getElementPointerFromNumero(numeroDeb_);

  bool there_is_rfgun = ( elPtr->getNomdElement().getElementType() == RFgun );
  unsigned offsetNumElem;
  // les elements de parmela sont indexes de 1 à max, s'il n'y a pas de rfgun
  if ( !there_is_rfgun ) {
    offsetNumElem = numeroDeb_ -1;
    // les elements de parmela sont indexes de 0 à max, s'il y a un rfgun
  } else {
    offsetNumElem = numeroDeb_;
  }

  // index du premier element de parmela
  int id= numeroDeb_ - offsetNumElem;
  unsigned k;
  unsigned curseur = 0;
  for ( k=numeroDeb_; k <= numeroFin_ ; k++ ) {
    abstractElement* elem = dataManager_->getElementPointerFromNumero(k);
    cout << " liste PARMELA no absolu " << k << " relatif provisoire " << relativeParmelaElementIndices_.at(curseur) << endl;
    if ( elem->is_accepted_by_software(nameOfSoftware_) == TBoolOk ) {
      relativeParmelaElementIndices_.at(curseur) = id;
      cout << " mis a " << id << endl;
      id++;
    }
    curseur++;
  }
}


bool softwareParmela::createInputFile(particleBeam* beamBefore,unsigned int numeroDeb,unsigned int numeroFin,string workingDir)
{
  unsigned int k;
  if ( !initComputationLimits(numeroDeb,numeroFin) ) return false;
  setRelativeParmelaElementIndices();
  string name = workingDir + inputFileName_;
  ofstream outfile;
  outfile.open(name.c_str(), ios::out);
  if (!outfile) {
    dataManager_->consoleMessage(" softwareParmela::createInputFile : error opening output stream " );
    cerr << " softwareParmela::createInputFile : error opening output stream " << name << endl;
    return false;
  }
  
  abstractElement* elPtr;
  double initalKineticEnergy = 0.0;
  elPtr = dataManager_->getElementPointerFromNumero(numeroDeb_);
  bool there_is_rfgun = ( elPtr->getNomdElement().getElementType() == RFgun );
  
  if ( !there_is_rfgun ) {
    string nameOfInput = workingDir + "parin.input0";
    if ( !beamToParmela(nameOfInput,beamBefore) ) return false;
    initalKineticEnergy = beamBefore->referenceKineticEnergyMeV();
    // les elements de parmela sont indexes de 1 à max, s'il n'y a pas de rfgun
    //    offsetNumElem_ = numeroDeb_ -1;
  } else {
    elPtr->setPhaseStep( globParamPtr_->getIntegrationStep() );
    initalKineticEnergy = elPtr->getInitialKineticEnergy();
    // les elements de parmela sont indexes de 0 à max, s'il y a un rfgun
    //    offsetNumElem_ = numeroDeb_;
  }
  
  outfile << "TITLE" << endl;
  outfile << " titre provisoire " << endl;
  outfile << "RUN /n0=1 /ip=999 /freq=" << globParamPtr_->getFrequency() << "  /z0=0.0 /W0=" << initalKineticEnergy << "  /itype=1" << endl;
  outfile << "OUTPUT 0" << endl;
  unsigned int premier = numeroDeb_ ;
  if ( there_is_rfgun ) {
    outfile << dataManager_->getElementPointerFromNumero(numeroDeb_)->parmelaOutputFlow();
    premier++;
  } else {
    outfile << "INPUT 0 /NP=" << beamBefore->getNbParticles() << endl;
  }
  
  for ( k = premier; k <= numeroFin_; k++)
    {
      elPtr = dataManager_->getElementPointerFromNumero(k);
      if (elPtr) {
	outfile << elPtr->parmelaOutputFlow();
      }
    }
    
  outfile << "ZOUT" << endl;
  outfile << "START /wt=0.0 /dwt=" << globParamPtr_->getIntegrationStep() << "  /nsteps=" << globParamPtr_->getNbSteps() << "  nsc=" << globParamPtr_->getScPeriod() << "  /nout=10" << endl;
  outfile << "END" << endl;
  outfile.close();
  dataManager_->consoleMessage("fichier input termine pour PARMELA");
  return true;
}

bool softwareParmela::execute(string workingDir)
{
  bool ExecuteStatus = true;
  
  ostringstream sortie;
  sortie << " EXECUTION DE PARMELA DE l'ELEMENT " << numeroDeb_ << " A L'ELEMENT " << numeroFin_ << endl;
    
  string parmelaJob = workingDir + "parmela";
  parmelaJob += string("   ");
  parmelaJob += workingDir;
  
  string resultOfRun;
  bool success = launchJob(parmelaJob,resultOfRun);


  //  sortie << resultOfRun << endl;
  if ( !success ) {
    sortie << " launching of parmela failed " << endl;
    ExecuteStatus = false;
  } else {
    sortie << " successful launching of parmela " << endl;
    cout << " execution parmela MARCHE " << endl;
    string::size_type nn = (resultOfRun).find("normal");
    if ( nn == string::npos )
      {
	sortie << " abnormal exit of parmela " << endl;
	ExecuteStatus = false;
      } 
  }
  
  dataManager_->consoleMessage(sortie.str());
  return ExecuteStatus;
}

bool softwareParmela::buildBeamAfterElements( string workingDir)
{
  bool result = true;

  if ( !ComputationLimitsOk() ) return false;
  unsigned curseur;
  for(unsigned k = numeroDeb_; k <= numeroFin_; k++)
    {
      abstractElement* elem = dataManager_->getElementPointerFromNumero(k);
      if ( elem == NULL ) {
	dataManager_->consoleMessage(" softwareParmela::buildBeamAfterElements : null pointer on element " );
	return  false;	      
      }

      curseur = k - numeroDeb_;

      if ( relativeParmelaElementIndices_.at(curseur) < 0 ) {

	// si l'element doit etre ignore de parmela, on renvoie sur le diag precedent
	particleBeam* lastDiag = dataManager_->updateCurrentDiagnostic(false);

	// if(elem->getNomdElement().getElementType() == snapshot) {
	//   // si cet element est un snapshot, on organise la sortie correspondante
	//   string* param = elem->getParametersString();
	//   string cliche = workingDir + param[2].c_str();
	//   if( beamToParmela(cliche,lastDiag) ) {
	//       //	    cout  <<  "["  <<  k  <<  "] : ecrit sur fichier " << cliche << " le contenu de beam["<<avantDernier<<"]"<<endl;
	//     cout  <<  "["  <<  k  <<  "] : ecrit sur fichier " << cliche << " le contenu de beam[ ]"<<endl;
	//   }
	// }
	// si le numero est reconnu de parmela
      } else {
	 
	// on initialise une nouvelle sortie diagnostic 
	  particleBeam* newDiag = dataManager_->updateCurrentDiagnostic(true);
	  vector<double> centroid;
	  bareParticle refPart;
	  vector<bareParticle> particles;
	  double freq= globParamPtr_->getFrequency();
	  unsigned numeroParmel;
	  numeroParmel = (unsigned)relativeParmelaElementIndices_.at(curseur);
	  cout << " lecture PARMELA el no absolu " << k << " numero relatif " << numeroParmel << " nom " << elem->getNomdElement().getElementName() << endl;
      	// lecture sortie parmela
	if(!beamFromParmela(workingDir,numeroParmel,freq,centroid,refPart,particles))
	  {
	    // si echec, fin
	    dataManager_->consoleMessage(" softwareParmela::buildBeamAfterElements : failure in reading parmela result for element " + elem->getLabel() + " for unknown reason " );
	    return  false;
	  } else {
	  // si succes, on complete le diagnostic
	  newDiag->setWithParticles(centroid,refPart,particles);
	}
      }
    }
  return result;
}
bool softwareParmela::beamFromParmela(string workingDir,unsigned numeroParmel, double referencefrequency, vector<double>& centroid, bareParticle& refPart,vector<bareParticle>& particles )
{    
  string nomfilefais = workingDir + "parmdesz";
  cout << " nom fichier desz : " << nomfilefais << endl;
  FILE *filefais = fopen(nomfilefais.c_str(), "r");
  
  if ( filefais == (FILE*)0 ) {
    dataManager_->consoleMessage(" beamFromParmela() erreur a l'ouverture du fichier 'parmdesz'");
    cerr << " beamFromParmela() erreur a l'ouverture du fichier" << nomfilefais  << endl;
    return false;
  } else
    cout << " beamFromParmela() : ouverture du fichier " << nomfilefais << endl;
  
  parmelaParticle partic;
  std::vector<parmelaParticle> faisceau;
  int testNombrePartRef =0;
  double phaseRef = 0.0;
  
  while( partic.readFromParmelaFile(filefais) > 0 )
    {
      
      if ( partic.ne == (int)numeroParmel ) {
	if ( partic.np == 1 ) {
	  // en principe on est sur la particule de reference
	  if ( fabs(partic.xx) > EPSILON || fabs(partic.yy) > EPSILON || fabs(partic.xxp) > EPSILON  || fabs(partic.yyp) > EPSILON) {
	    printf(" ATTENTION part. reference douteuse  \n");
	    partic.imprim();
	  }
	  phaseRef = partic.phi;
          
	  // le 'z' est 'absolu' (le long de la trajectoire)
	  TRIDVECTOR  posRef(partic.xx,partic.yy,partic.z);
	  TRIDVECTOR betagammaRef(partic.xxp*partic.begamz, partic.yyp*partic.begamz, partic.begamz);
	  refPart = bareParticle(posRef, betagammaRef);
	  testNombrePartRef++;
	  if ( testNombrePartRef != 1 ) {
	    dataManager_->consoleMessage(" beamFromParmela : nombre de part. de ref different de 1 :");
	    cerr << " nombre de part. de ref different de 1 : " << testNombrePartRef << " !! " << endl;
	    return false;
	  }
	}
	faisceau.push_back(partic);
      }
    } //while
  
  if ( faisceau.size() == 0)
    {
      string stringNum = mixedTools::intToString( (int)numeroParmel );
      dataManager_->consoleMessage("beamFromParmela echec lecture  element numero relatif  parmela : " + stringNum);
      cerr << " beamFromParmela echec lecture  element numero relatif  parmela " << numeroParmel << endl;
      return false;
    }
  
  // facteur  c/ 360. pour calculer (c dphi) / (360.freq)
  // avec freq en Mhz et dphi en degres et résultat en cm:
  double FACTEUR =  83.3333;  // ameliorer la precision
  
  // pour l'instant on choisit un centroid nul;
  centroid.clear();
  centroid = vector<double>(6,0.0);
  
  particles.clear();
  particles.resize(faisceau.size(), bareParticle());
  //  double x,xp,y,yp;
  double xp, yp;
  double betagammaz;
  //  double betaz;
  double cdt;
  double dephas;
  double g;
  TRIDVECTOR  pos;
  TRIDVECTOR betagamma;
  // contrairement a ce qu'indique la notice PARMELA, dans parmdesz, les xp et yp
  // sont donnes en radians
  for (unsigned k = 0; k < faisceau.size(); k++) {
    //    x= faisceau.at(k).xx;
    xp=faisceau.at(k).xxp;
    //    y= faisceau.at(k).yy;
    yp=faisceau.at(k).yyp;
    // dephasage par rapport a la reference
    dephas = faisceau.at(k).phi - phaseRef; // degrés
    g = faisceau.at(k).wz/EREST_MeV;
    betagammaz = faisceau.at(k).begamz;
    //    betaz = betagammaz/(g+1.0);
    //    deltaz = FACTEUR * betaz * dephas / referencefrequency;
    cdt = FACTEUR * dephas / referencefrequency;
    //    x += xp * deltaz;
    //    y += yp * deltaz;
    pos.setComponents(faisceau.at(k).xx,faisceau.at(k).yy,cdt);
    betagamma.setComponents(xp*betagammaz, yp*betagammaz, betagammaz);
    particles.at(k) = bareParticle(pos,betagamma);
  }
  
  return true;
}

// sauvegarde d'un 'particleBeam' sur un fichier parmela, en guise d'INPUT
// pour l'instant de nom standard 'parin.input0'
bool softwareParmela::beamToParmela(string nameOfFile,particleBeam* beam)
{
    if ( !beam->particleRepresentationOk() ) {
        dataManager_->consoleMessage("softwareParmela::beamToParmela : beam not in particles form : not yet programmed");
        cout << " softwareParmela::beamToParmela : beam not in particles form : not yet programmed " << endl;
        return false;
    }
    
    ofstream outfile;
    outfile.open(nameOfFile.c_str(),ios::out);
    if (!outfile) {
        dataManager_->consoleMessage(" softwareParmela::beamToParmela : error opening output stream ");
        cerr << " softwareParmela::beamToParmela : error opening output stream " << nameOfFile << endl;
        return false;
    }
    
    //    const vector<bareParticle>& partic = beam->getParticleVector();
    double weight = 1.0;
    double xx,yy,zz;
    double begamx, begamy, begamz;
    //    TRIDVECTOR pos, begam;
    double zmin = GRAND;
    double zmax = -zmin; 
    double cdtmin, cdtmax;
    beam->ZrangeCdt(cdtmin, cdtmax);
    cout << " softwareParmela::beamToParmela cdtmin = " << cdtmin << " cdtmax = " << cdtmax << endl;
  
    for (unsigned k = 0; k < beam->getNbParticles(); k++) {
        // partic.at(k).getPosition().getComponents(xx,yy,zz);
        // partic.at(k).getBetaGamma().getComponents(begamx,begamy,begamz);
      beam->coordonneesDeployees(k, -cdtmax).getComponents(xx,yy,zz);
      beam->betaGamma(k).getComponents(begamx,begamy,begamz);
      if ( zz > zmax) zmax = zz;
      if ( zz < zmin ) zmin = zz;
        outfile << xx << " " << begamx << " " <<  yy << " " << begamy << " " << zz << " " << begamz  << " " << weight << endl;
    }
    outfile.close();
    cout << " softwareParmela::beamToParmela zmn = " << zmin << " zmax = " << zmax << endl;
    return true;
}