#include <stdio.h>
#include <string.h>
#include <vector>
#include <ctime>

#include "GWt_pspaApplication.h"
#include "GWt_ligneFaisceau.h"
#include "GWt_softwarePanel.h"
#include "GWt_globalParameters.h"
// #include "GWt_dialog.h"
#include "GWt_draggableImage.h"
#include "particleBeam.h"
#include "bareParticle.h"
#include "nomDeLogiciel.h"
#include "mixedTools.h"
#include "nomdElements.h"
#include "environmentVariables.h"
#include "GWt_console.h"
#include "GWt_serverFileSelector.h"
#include "trivaluedBool.h"

#include <Wt/WGridLayout>
#include <Wt/WVBoxLayout>
#include <Wt/WHBoxLayout>
#include <Wt/WImage>
#include <Wt/WMenu>
#include <Wt/WStackedWidget>
#include <Wt/WBreak>
#include <Wt/WDialog>
#include <Wt/WStandardItemModel>
#include <Wt/WFileUpload>
#include <Wt/WPainter>
#include <Wt/WPdfImage>
#include <Wt/WScrollArea>
#include <Wt/WLineEdit>
#include <Wt/WRadioButton>

#define HAS_IMAGEMAGIC 1

using namespace Wt::Chart;

/*
 * The env argument contains information about the new session, and
 * the initial request. It must be passed to the WApplication
 * constructor so it is typically also an argument for your custom
 * application constructor.
 */

PspaApplication::PspaApplication(const WEnvironment& env) : 
  WApplication(env),
  applicationDefaultTitle_("portail PSPA"),
  beamLine_(NULL),
  extensionFile_(0)
{
  workingDir_ = WApplication::docRoot()+ "/"+WORKINGAREA;
  nameOfCase_ = "pspa"; // default
    
  setTitle(applicationDefaultTitle_);  // application title
  if (!wApp->environment().javaScript()) {
    new WText("<i>This examples requires that javascript support is enabled.</i>",root());
  }
    
  // register the absractElementFactory
  abstractElementFactory_ = new GWt_abstractElementFactory();
  abstractElementFactory_->setRFGunEnable(true);
  abstractElementFactory_->setDriftEnable(true);
  abstractElementFactory_->setCellEnable(true);
  abstractElementFactory_->setBendEnable(true);
  abstractElementFactory_->setSolenoEnable(true);
  abstractElementFactory_->setBeamEnable(true);
  abstractElementFactory_->setFitEnable(true);
  abstractElementFactory_->setSnapshotEnable(true);
  
  // include the styleSheet
  WContainerWidget *widroot = root();
  useStyleSheet("htdocs/pspa.css");
  dtmanage_ = new dataManager(this);
  //    dtmanage_->setWorkingDir(workingDir_);
  
  /*
   * The main layout is a 4x3 grid layout.
   */
  WGridLayout *mainGridLayout = new WGridLayout();
  //  layout->addWidget(createTitle("<a href='workingArea/parmin'> Menu (In future)</a>"), 0, 0, 1, 2);
  //  layout->addWidget(createTitle("Menu (In future)"), 0, 0, 1, 2);
  
  WHBoxLayout *toolbarLayout = new WHBoxLayout();
  
  WPushButton* boutonSauve = new WPushButton();
  WPushButton* boutonRestaure = new WPushButton();
  WPushButton* boutonLoadNew = new WPushButton();
  WPushButton* boutongraphicalAnalysis = new WPushButton();
  WPushButton* boutonTrash = new WPushButton();
  
  boutonSauve->setStyleClass("saveButton");
  boutonRestaure->setStyleClass("restoreButton");
  boutonLoadNew->setStyleClass("loadNewButton");
  boutongraphicalAnalysis->setStyleClass("histoButton");
  boutonTrash->setStyleClass("trashButton");
  
  boutonSauve->setToolTip ("sauvegarder votre configuration");
  boutonRestaure->setToolTip (" restaurer la configuration depuis le serveur");
  boutonLoadNew->setToolTip ("charger une configuration");
  boutongraphicalAnalysis->setToolTip ("analyse graphique");
  boutonTrash->setToolTip ("tout effacer");
  
  boutonSauve->setMaximumSize(38,38);
  boutonSauve->setMinimumSize(38,38);
  boutonRestaure->setMaximumSize(38,38);
  boutonRestaure->setMinimumSize(38,38);
  boutonLoadNew->setMaximumSize(38,38);
  boutonLoadNew->setMinimumSize(38,38);
  boutongraphicalAnalysis->setMaximumSize(38,38);
  boutongraphicalAnalysis->setMinimumSize(38,38);
  boutonTrash->setMaximumSize(38,38);
  boutonTrash->setMinimumSize(38,38);
  
  boutonSauve->clicked().connect(this, &PspaApplication::sauver);
  boutonRestaure->clicked().connect(this, &PspaApplication::restaurer);
  // Upload when the button is clicked.
  // React to a succesfull upload.
  boutonLoadNew->clicked().connect(this, &PspaApplication::openFileSelector);
  
  boutongraphicalAnalysis->clicked().connect(this, &PspaApplication::dialogOnGraphics);
  
  boutonTrash->clicked().connect(this, &PspaApplication::removeBeamLine);
  
  toolbarLayout->addWidget(boutonSauve , 0,Wt::AlignMiddle);
  toolbarLayout->addWidget(boutonRestaure , 0,Wt::AlignMiddle);
  toolbarLayout->addWidget(boutonLoadNew , 0,Wt::AlignMiddle);
  toolbarLayout->addWidget(boutongraphicalAnalysis , 0,Wt::AlignMiddle);
  toolbarLayout->addWidget(boutonTrash , 0,Wt::AlignMiddle);
  toolbarLayout->addWidget(new WText("") , 1,Wt::AlignMiddle);
  
  WContainerWidget * toolbarLayoutContainer = new WContainerWidget();
  toolbarLayoutContainer->setLayout(toolbarLayout);
  toolbarLayoutContainer->decorationStyle().setBackgroundImage ("/htdocs/fond_toolbar.png");
    
  mainGridLayout->addWidget(toolbarLayoutContainer, 1, 0, 1, 3);
  mainGridLayout->addWidget(createPalette(), 2, 0, 4, 1);

  
  WScrollArea* scroll = new  WScrollArea();
  scroll->setWidget(createBeamLine());
  scroll->setMinimumSize(300,150);

  mainGridLayout->addWidget(scroll, 2, 1, 1, 2);
  
  
  // console_ = new WContainerWidget();
  // console_->decorationStyle().setBackgroundColor (WColor("lightgray"));
  // console_->setMaximumSize(600,200);
  // layout->addWidget(console_, 3, 1);
  // console_->setMinimumSize(300,100);
  // console_->setOverflow(WContainerWidget::OverflowAuto);
  
  
  //-----------
  // A supprimer et a mettre en fenetre
  globalParam_ = createGlobalParamWidget();
  //  leDessin_ = new WContainerWidget();
  //  leDessin_ = createDrawingWidget();
  graphicsDialog_ = new GWt_dialog("graphical analysis",createDrawingWidget(),false);
  graphicsDialog_->setMinimumSize(400,400);
  graphicsDialog_->setClosable(true);
  graphicsDialog_->hide();
  
  executeWidget_ = new GWt_softwarePanel(dtmanage_,this);
  
  mainGridLayout->addWidget( globalParam_, 3, 1);
  //  layout->addWidget( leDessin_, 3, 2);
  mainGridLayout->addWidget( executeWidget_ , 4, 1);
  //-----------
  
  console_ = new GWt_console();

  // manage sizes
  console_->setMinimumSize(300,100);
  executeWidget_->setMinimumSize(400,100);

  mainGridLayout->addWidget(console_, 3, 2,2,1);
  
  
  /*
   * Let row 2 and column 1 take the excess space.
   */
  mainGridLayout->setRowStretch(4, 1);
  mainGridLayout->setColumnStretch(2, 1);
  
  widroot->setLayout(mainGridLayout);

  // set auto scrollbar if needed
  widroot->setOverflow(WContainerWidget::OverflowAuto);

}

WWidget* PspaApplication::createPalette()
{
  WContainerWidget* palette = new WContainerWidget();
  vector <GWt_abstractElement*> elems = abstractElementFactory_->getAllElements();
  for (unsigned a = 0; a < elems.size(); a++) {
    elems[a]->createDragImage(palette);
    new WBreak(palette);
  }

  return palette;  
}

void PspaApplication::createDragImage(const char *url,const char *smallurl,const char *mimeType,WContainerWidget *p,WString())
{
  GWt_draggableImage *result = new GWt_draggableImage(url,p);
  
  /*
   * Set the image to be draggable, showing the other image (dragImage)
   * to be used as the widget that is visually dragged.
   */
  result->setDraggable(mimeType,new WImage(smallurl,p),true);
}

Wt::WWidget* PspaApplication::createBeamLine()
{
  extensionFile_= 0;
  if (!beamLine_) {
    beamLine_ = new GWt_LigneFaisceau(this);
  } else {
    beamLine_->clear();
  }
  beamLine_->setMinimumSize(300,100);
  setTitle(applicationDefaultTitle_);

  return beamLine_;
}

WWidget* PspaApplication::createGlobalParamWidget()
{
  WContainerWidget* globalParam = new GWt_globalParameters(this);
  globalParam->setMinimumSize(300,100);
  return globalParam;
}


void PspaApplication::dialogOnGraphics()
{
  graphicsDialog_->show();
}

WContainerWidget* PspaApplication::createDrawingWidget()
{
  WGridLayout *glayout= new WGridLayout();
  WContainerWidget* dessin = new WContainerWidget();
  dessin->setLayout(glayout);

  group_ = new Wt::WButtonGroup(this);
  
  /////////////////////////////////////////////////////////////////////
       
  choixEnveloppeDessin_ = new WComboBox();
  choixEnveloppeDessin_->addItem("x");
  // choixEnveloppeDessin_->addItem("y");
  Wt::WRadioButton *button1= new WRadioButton(" enveloppe");
  group_->addButton(button1,1);
  glayout->addWidget(button1,0,1);
  glayout->addWidget(choixEnveloppeDessin_,0,2);
  /////////////////////////////////////////////////////////////////////

  choixElementDessin_ = new WComboBox();
  choixElementDessin_->setMinimumSize(50,10);
  choixTypeDessinFaisceau_ = new WComboBox();
  choixTypeDessinFaisceau_->addItem("courant_snyder");
  choixTypeDessinFaisceau_->addItem("macroparticles");
  Wt::WRadioButton *button2= new WRadioButton(" phase space after element");

  choixAbsPhase_ = new WComboBox();
  choixAbsPhase_->addItem("x");
  choixAbsPhase_->addItem("y");
  choixAbsPhase_->addItem("dz");
  choixAbsPhase_->addItem("xp");
  choixAbsPhase_->addItem("yp");
  choixAbsPhase_->addItem("dE/E");
  choixAbsPhase_->setCurrentIndex(0);
  
  choixOrdPhase_ = new WComboBox();
  choixOrdPhase_->addItem("x");
  choixOrdPhase_->addItem("y");
  choixOrdPhase_->addItem("dz");
  choixOrdPhase_->addItem("xp");
  choixOrdPhase_->addItem("yp");
  choixOrdPhase_->addItem("dE/E");
  choixOrdPhase_->setCurrentIndex(3);
  
  group_->addButton(button2,2);
  glayout->addWidget(button2,1,1);
  glayout->addWidget(choixElementDessin_,1,2);
  glayout->addWidget(choixTypeDessinFaisceau_,1,3);
  //  glayout->addWidget(new WText("abs. :"),2,2);
  glayout->addWidget(choixAbsPhase_,2,2);
  //  glayout->addWidget(new WText("ord. :"),2,4);
  glayout->addWidget(choixOrdPhase_,2,3);
  /////////////////////////////////////////////////////////////////////

  choixVariableHisto_= new WComboBox();
  choixVariableHisto_->addItem("x");
  choixVariableHisto_->addItem("y");
  choixVariableHisto_->addItem("z");
  choixVariableHisto_->addItem("xp");
  choixVariableHisto_->addItem("yp");
  choixVariableHisto_->addItem("dE/E");
  choixVariableHisto_->setCurrentIndex(5);

  choixHistoDessin_ = new WComboBox();
  Wt::WRadioButton *button3= new WRadioButton(" histogram after element ");
  group_->addButton(button3,3);

  glayout->addWidget(button3,3,1);
  glayout->addWidget(choixHistoDessin_,3,2);
  glayout->addWidget(choixVariableHisto_,3,3);
  /////////////////////////////////////////////////////////////////////
  
  WPushButton *close= new WPushButton("close"); 
  glayout->addWidget(close,4,1);
  close->clicked().connect(this,&PspaApplication::closeGraphicDialog);
  
  WPushButton *draw= new WPushButton("draw"); 
  glayout->addWidget(draw,4,2,2,1);
  draw->clicked().connect(this,&PspaApplication::dessiner);
  /////////////////////////////////////////////////////////////////////

  toto_ = new WContainerWidget();
  dessin->addWidget(toto_);
  return dessin;
}

void PspaApplication::closeGraphicDialog()
{
  cout << " close graphicsDialog_" << endl;
  for(unsigned i = 0; i < eDialog_.size(); i++) eDialog_[i]->done(WDialog::Rejected);
  eDialog_.clear();
  graphicsDialog_->done(WDialog::Rejected);
}

void PspaApplication::dessiner()
{
  int k= group_->checkedId();
  cout << "dessiner k= " << k << endl;

  switch(k) {
  case  1: 
    dessinerEnveloppe();
    break;
  case 2:
    dessinerPhaseSpace();
    break;
  case 3:
    dessinerHistogramme();
    break;
  default:
    GWt_dialog graphicalWarning("graphical analysis","select a button",GWt_dialog::Warning,false,true);
    graphicalWarning.exec();
    break;
  }
}


void PspaApplication::sauver()
{
  cout << " on sauve " << endl;
  console_->addConsoleMessage("sauvegarde");
  
  dialogSave_ = new WDialog("save");
  new WText("name of case : ",dialogSave_->contents());
  saveNameEdit_ = new WLineEdit(nameOfCase_.c_str(), dialogSave_->contents());
  WPushButton *annule = new WPushButton("cancel",dialogSave_->contents());
  WPushButton *submit = new WPushButton("OK",dialogSave_->contents());
  annule->clicked().connect(dialogSave_, &Wt::WDialog::reject);
  submit->clicked().connect(dialogSave_, &Wt::WDialog::accept);
  dialogSave_->finished().connect(this, &PspaApplication::dialogSaveDone);
  dialogSave_->show();
}


void PspaApplication::dialogSaveDone(WDialog::DialogCode code)
{
    if ( code != Wt::WDialog::Accepted ) {
        return;
    }
    nameOfCase_ = saveNameEdit_->text().toUTF8();
    delete dialogSave_;
    dialogSave_ = NULL;

    GWt_globalParameters* bibi = static_cast<GWt_globalParameters*>(globalParam_);
    bibi->updateGlobals();
    //  dtmanage_->saveConfiguration(nameOfCase_);
    dtmanage_->saveConfiguration(sessionId(),nameOfCase_);
}


void PspaApplication::restaurer()
{
  GWt_serverFileSelector * fs = new GWt_serverFileSelector("Select a configuration file",workingDir_);
  string fileName = fs->exec();
  nameOfCase_ = fileName;
  if (fileName == "") {
    return;
  }
    
  removePathFromConfigName(nameOfCase_ );
  cout << " nom sans path " << nameOfCase_ << endl;
  removeExtensionFromConfigName(nameOfCase_);
  cout << " nom sans extension " << nameOfCase_ << endl;
  if (nameOfCase_ == "")
    return;
  cout << " je restaure le fichier " << fileName << endl;
  dialogSave_ = NULL;
  
  bool test = dtmanage_->restoreElements(fileName);
  if ( !test ) {
    GWt_dialog restoreWarning(" element restoring", "failure in restoring elements from file : " + fileName , GWt_dialog::Error, false,true);
    restoreWarning.exec();
  } else {
    // Change the window title
    unsigned long found = fileName.find_last_of("/");
    setTitle(applicationDefaultTitle_+" : "+fileName.substr(found+1));
  }
  
  GWt_globalParameters* bibi = static_cast<GWt_globalParameters*>(globalParam_);
  bibi->renew();
  
  console_->addConsoleMessage(string("restauration terminee \n"));
}

void PspaApplication::openFileSelector()
{
    
  WContainerWidget *result = new WContainerWidget();
  WVBoxLayout* myLayout = new WVBoxLayout();
    
  uploadFileSelectorWidget_ = new WFileUpload();
    
  uploadFileSelectorWidget_->setFileTextSize(40);
    
  myLayout->addWidget(new WText("Select the configuration file for pspa : "));
  myLayout->addWidget(uploadFileSelectorWidget_);
    
  result->setLayout (myLayout);
    
  // Upload automatically when the user entered a file.
  uploadFileSelectorWidget_->changed().connect(uploadFileSelectorWidget_, &WFileUpload::upload);
  
  // React to a succesfull upload.
  uploadFileSelectorWidget_->uploaded().connect(this, &PspaApplication::chargerConfig);
  
  // React to a fileupload problem.
  uploadFileSelectorWidget_->fileTooLarge().connect(this, &PspaApplication::fileTooLarge);
  
  
  GWt_dialog* fileSelectorDialog = new GWt_dialog("Load a file",result,false);
  
  fileSelectorDialog->exec();
}

void PspaApplication::chargerConfig()
{
  GWt_dialog*  message= new GWt_dialog("File successfully upload","The file has been correctly upload to" + uploadFileSelectorWidget_->spoolFileName(),GWt_dialog::Warning,false,true);
    
  string nomDuFichier = (uploadFileSelectorWidget_->clientFileName()).toUTF8();
  cout << " fichier client : " << nomDuFichier << endl;
  bool test = removeExtensionFromConfigName(nomDuFichier);
  cout << " fichier client sans extension : " << nomDuFichier << endl;
  
  if ( test )
    {
      nameOfCase_ = nomDuFichier;
      console_->addConsoleMessage(string("restauration..."));
      
      if ( !dtmanage_->restoreElements(uploadFileSelectorWidget_->spoolFileName()) ) {
	GWt_dialog restoreWarning(" element restoring", "failure in restoring elements !", GWt_dialog::Error, false,true);
	restoreWarning.exec();
      }
      
      GWt_globalParameters* bibi = static_cast<GWt_globalParameters*>(globalParam_);
      bibi->renew();
      
      console_->addConsoleMessage(string("rechargement de config termine"));
      message->show();
    }
}

void PspaApplication::fileTooLarge()
{
  std::stringstream stream;
  stream << maximumRequestSize ();
  std::string maxRequestSize(stream.str());
  
  std::string message = "This file is too large, please select a one\n";
  message += "Maximum file size is "+ maxRequestSize;
  message += " bytes\n";
    
  GWt_dialog*  messageBox= new GWt_dialog("Error during upload file" ,message ,GWt_dialog::Error,false,true);
  
  messageBox->show();
}

void PspaApplication::faireDessin()
{
  choixElementDessin_->clear();
  choixHistoDessin_->clear();

  int nombre = dtmanage_->getBeamLineSize();  
  for(int i = 1; i <= nombre; i++) {
    abstractElement* elPtr = dtmanage_->getElementPointerFromNumero(i);
    //    if(elPtr->getNomdElement().getElementType() == snapshot) continue;

    choixElementDessin_->addItem(elPtr->getLabel());
    choixHistoDessin_->addItem(elPtr->getLabel());
  } 
}

void PspaApplication::dessinerPhaseSpace()
{    
    
  int typeFaisceau = choixTypeDessinFaisceau_->currentIndex();
  //  int index = choixElementDessin_->currentIndex();
  string nameAbs = choixAbsPhase_->currentText().toUTF8();
  string nameOrd = choixOrdPhase_->currentText().toUTF8();
  if ( nameAbs == nameOrd ) {
	GWt_dialog phaseSpaceError(" graphical analysis", "the beam coordinates must be different !", GWt_dialog::Error, false,true);
	phaseSpaceError.exec();
	return;
  }
  string elementLabel = choixElementDessin_->currentText().toUTF8();
  particleBeam* beam = dtmanage_->getDiagnosticBeam(elementLabel);
  //  particleBeam* beam = dtmanage_->getDiagnosticBeam(index);
    
  if ( beam == NULL ) {
    GWt_dialog warningBeamState(" graphical analysis", "the beam does not exist at the end of this element !", GWt_dialog::Error, false,true);
    warningBeamState.exec();
    return;
  }
    
    toto_->clear();
    faireDessinPhaseSpace(toto_, beam, elementLabel, nameAbs, nameOrd, typeFaisceau);

  // if ( typeFaisceau == 0 )
  //   {
  //     if ( !beam->momentRepresentationOk() ) beam->buildMomentRepresentation();
  //     faireDessinTransport(toto_, beam, nameAbs, nameOrd );
  //   }
  // else if ( typeFaisceau == 1 )
  //   {
  //     if ( beam->particleRepresentationOk() ) faireDessinParmela(toto_, beam, nameAbs, nameOrd );
  //     else {
  // 	GWt_dialog warningBeamState(" graphical analysis", "the beam state does not allow providing a drawing with macroparticles !", GWt_dialog::Error, false,true);
  // 	warningBeamState.exec();
  //     }
  //   }
  // else {
  //   GWt_dialog warningTypeDrawing(" graphical analysis", "type of  drawing not programmed !", GWt_dialog::Error, false,true);
  //   warningTypeDrawing.exec();
  // }
}

void PspaApplication::dessinerEnveloppe()
{
  toto_->clear();
  
  int typeEnveloppe = choixEnveloppeDessin_->currentIndex();
  if ( typeEnveloppe == 0 )
    {
      faireDessinEnveloppe(toto_, "x");
    }
  else {
    GWt_dialog warningTypeEnveloppe(" graphical analysis", "type of enveloppe drawing not programmed !", GWt_dialog::Error, false,true);
    warningTypeEnveloppe.exec();
  }
}

void PspaApplication::faireDessinEnveloppe(WContainerWidget* toto, string type)
{
  
  std::time_t result = std::time(NULL);
  
  GWt_dialog* envDialog = new GWt_dialog(WString("enveloppe&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(")+std::asctime(std::localtime(&result))+")",toto,false);
  eDialog_.push_back(envDialog);
  envDialog->setMinimumSize(400,400);
  envDialog->setClosable(true);
  envDialog->show();
      
  //  unsigned nbel = dtmanage_->getBeamLineSize();
  vector<double> xcor;
  vector<double> ycor;
  string titre;
  string legendx;
  string legendy;
  dtmanage_->donneesRmsEnveloppe(type,xcor,ycor,titre,legendx,legendy);

  Wt::Chart::SeriesType seriesType = LineSeries;
  Wt::Chart::FillRangeType fillRange = NoFill;
  Wt::Chart::AxisValue location = ZeroValue;
  bool isGridLinesEnabled = false; 
  chartPlot2vec(envDialog->contents(),xcor,ycor,seriesType,fillRange,location,isGridLinesEnabled,titre,legendx,legendy,500,300);
}

void PspaApplication::faireDessinPhaseSpace(WContainerWidget* toto, particleBeam* beam, string elementLabel, string namex, string namey, int typeFaisceau)
{

  vector<double> xcor;
  vector<double> ycor;
  vector<string> legende;
  string titre;
  Wt::Chart::SeriesType seriesType;
  
  if ( typeFaisceau == 0 ) {
    seriesType = LineSeries;
    titre = "phase space rms";
    beam->donneesDessinEllipse(xcor,ycor,legende,namex,namey);
  } else if (  typeFaisceau == 1 ) {
    seriesType = PointSeries;
    titre = " phase space ";
    beam->particlesPhaseSpaceData(xcor,ycor,legende,namex,namey);
  } else {
    GWt_dialog warningBeamState(" graphical analysis", "the beam state does not allow providing a drawing with macroparticles !", GWt_dialog::Error, false,true);
    warningBeamState.exec();
    return;
  }
  
  std::time_t result = std::time(NULL);
  GWt_dialog* phaseSpaceDialog = new GWt_dialog(WString("phase space&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(")+std::asctime(std::localtime(&result))+")",toto,false);
  eDialog_.push_back(phaseSpaceDialog);
  phaseSpaceDialog->setMinimumSize(400,400);
  phaseSpaceDialog->setClosable(true);
  new WText(" case : " + nameOfCase_, phaseSpaceDialog->contents());
  new WBreak(phaseSpaceDialog->contents());
  new WText(" after element :  " + elementLabel, phaseSpaceDialog->contents());

  for (int k=0 ; k < legende.size(); k++) {
    new WBreak(phaseSpaceDialog->contents());
    new WText(legende.at(k), phaseSpaceDialog->contents());
  }

  Wt::Chart::FillRangeType fillRange = NoFill;
  Wt::Chart::AxisValue location = ZeroValue;
  bool isGridLinesEnabled = false; 
  chartPlot2vec(phaseSpaceDialog->contents(),xcor,ycor,seriesType,fillRange,location,isGridLinesEnabled,titre,namex,namey,500,300);
  
  phaseSpaceDialog->show();
}



// void PspaApplication::faireDessinParmela(WContainerWidget* toto, particleBeam* beam, string namex, string namey )
// {
//   cout << " faireDessinParmela " << endl;
//   GWt_dialog* pointsDialog = new GWt_dialog("space phase",toto,false);
//   eDialog_.push_back(pointsDialog);
//   pointsDialog->setMinimumSize(400,400);
//   pointsDialog->setClosable(true);
//   // pointsDialog->show();
      
//   new WText(nameOfCase_, pointsDialog->contents());


//   vector<double> xcor;
//   vector<double> ycor;
//   vector<string> legende;
//   beam->particlesPhaseSpaceData(xcor, ycor, legende, namex, namey);
//   for (int k=0 ; k < legende.size(); k++) {
//     new WBreak(pointsDialog->contents());
//     new WText(legende.at(k), pointsDialog->contents());
//   }
//   string titre = " phase space ";
//   chartPlot2vec(pointsDialog->contents(), xcor, ycor, true,titre,namex, namey,400,400);


    
//   pointsDialog->show();
    
//   //  chart->setMargin(10, Top | Bottom);            // add margin vertically
//   //  chart->setMargin(WLength::Auto, Left | Right); // center horizontally
// }

// void PspaApplication::faireDessinTransport(WContainerWidget* toto, particleBeam* beam, string namex, string namey)
// {
//   GWt_dialog* ellipseDialog = new GWt_dialog("ellipse",toto,false);
//   eDialog_.push_back(ellipseDialog);
//   ellipseDialog->setMinimumSize(400,400);
//   ellipseDialog->setClosable(true);
//   ellipseDialog->show();
//   new WText(nameOfCase_, ellipseDialog->contents());
  
//   vector<double> xcor;
//   vector<double> ycor;
//   vector<string> legende;
//   beam->donneesDessinEllipse(xcor,ycor,legende, namex, namey);

//   for (int k=0 ; k < legende.size(); k++) {
//     new WBreak(ellipseDialog->contents());
//     new WText(legende.at(k), ellipseDialog->contents());
//   }
//   string titre = "phase space rms";
//   chartPlot2vec(ellipseDialog->contents(), xcor, ycor, false,titre, namex, namey,500,300);
// }


// parametre drawPoints : true = on trace des points (phase space) ; false = on trace des lignes (enveloppes...) 
void PspaApplication::chartPlot2vec(WContainerWidget* toto, vector<double>& xcor, vector<double>& ycor, bool drawPoints,string title,string legendx, string legendy,int width, int height, bool makeIcon)
{
    int nbpts = xcor.size();
    cout << " PspaApplication::chartPlot2vec nbpts = " << nbpts << endl;
    WStandardItemModel *model = new WStandardItemModel(nbpts, 2, toto);
    for (int i = 0; i < nbpts; ++i) {
        model->setData(i, 0, xcor.at(i));
        model->setData(i, 1, ycor.at(i));
        //    cout << " PspaApplication::chartPlot2vec el= " << i+1 << " x= " << xcor.at(i) << " y= " << ycor.at(i) << endl;
    }
    
    WCartesianChart *chart = new WCartesianChart(toto);
    if (!makeIcon) {
        chart->setTitle(title);
    }
    chart->initLayout();
    
    chart->setModel(model);        // set the model
    chart->setXSeriesColumn(0);    // set the column that holds the X data
    if (!makeIcon) {
        chart->setLegendEnabled(true); // enable the legend
    } else {
        chart->setLegendEnabled(false); // enable the legend
    }
    
    chart->setType(ScatterPlot);   // set type to ScatterPlot
    
    // Typically, for mathematical functions, you want the axes to cross
    // at the 0 mark:
    chart->axis(XAxis).setLocation(ZeroValue);
    chart->axis(YAxis).setLocation(ZeroValue);

    // Provide space for the X and Y axis and title.
    chart->setPlotAreaPadding(80, Left);  // ?
    chart->setPlotAreaPadding(40, Bottom);
    chart->setPlotAreaPadding(60, Top);
    if ( drawPoints ) {
      WDataSeries s(1, PointSeries, Y1Axis);
      chart->addSeries(s);    
    } else {
      WDataSeries s(1, LineSeries, Y1Axis);
      chart->addSeries(s);    
    }
    chart->resize(width, height); // WPaintedWidget must be given explicit size
    
    
    WAxis& axis = chart->axis(XAxis);
    axis.setLabelFormat("%.3f");
    //       axis.setGridLinesEnabled(true);
    axis.setTitle(legendx);
    
    WAxis& axey = chart->axis(YAxis);
    axey.setTitle(legendy);
    // axis = chart->axis(YAxis);
    // axis.setLabelFormat("%.3f");
    // axis.setGridLinesEnabled(true);
    // axis.setTitle(legendy);
    
    if (makeIcon) {
      chart->setPlotAreaPadding(0);
      chart->setAxisPadding(0);
      WFont xAxisFont = chart->axis(XAxis).labelFont();
      xAxisFont.setSize(8);
      WFont yAxisFont = chart->axis(YAxis).labelFont();
      yAxisFont.setSize(8);
      chart->axis(XAxis).setLabelFont(xAxisFont);
      chart->axis(YAxis).setLabelFont(yAxisFont);
    }

#ifdef HAS_IMAGEMAGIC
/*    Wt::WRasterImage pngImage("png", 600, 600);
    Wt::WPainter p(&pngImage);
    chart->paint(p);
    std::string name;
    name = workingDir_ + "/chart-"+sessionId ()+".png";
    std::ofstream f(name.c_str(), std::ios::out |std::ios::trunc | std::ios::binary);
    pngImage.write(f);    
    new WText("<a href='workingArea/chart-"+sessionId ()+".png' target='_blank'>Afficher l'image</a>",toto);
    
  Wt::WPdfImage pdfImage("30cm", "30cm");
    Wt::WPainter p1(&pdfImage);
    pdfImage.init();
    chart->paint(p1);
    name = workingDir_ + "/chart-"+sessionId ()+".pdf";
    std::ofstream f1(name.c_str(), std::ios::out |std::ios::trunc | std::ios::binary);
    pdfImage.write(f1);
 */
#endif
}


WText* PspaApplication::createTitle(const WString& title)
{
  WText *result = new WText(title);
  result->setInline(false);
  result->setStyleClass("title");
  result->setMinimumSize(30,30);
  
  return result;
}

// void PspaApplication::addConsoleMessage(WString msg) {
//   WText *w = new WText(console_);
//   w->setTextFormat(PlainText);
//   w->setText(msg);
//   w->setInline(false);

//   /*
//    * Little javascript trick to make sure we scroll along with new content
//    */
//   WApplication *app = WApplication::instance();
//   app->doJavaScript(console_->jsRef() + ".scrollTop += "
//                     + console_->jsRef() + ".scrollHeight;");

// }

bool PspaApplication::removePathFromConfigName(string& config) {
  string toExtract = workingDir_ + "/";
  string::size_type nn = config.find(toExtract);
  if ( nn == string::npos ) {
        GWt_dialog checkremovePath(" checking config file name", " failed to recognize path name for file  " + config, GWt_dialog::Error,true,true);
        checkremovePath.exec();
    return false;
  }
  config.replace(nn, toExtract.size(), "");
  return true;
}

bool PspaApplication::removeExtensionFromConfigName(string& config)
{
    //  string configName;
    string extension(".save");
    bool test = true;
    string::size_type nn = config.rfind('.');
    if ( nn == string::npos )
    {
        // pas de point
        test = false;
    }
    string fin = config.substr(nn);
    if ( fin != extension )
    {
        // l'extension n'est pas la bonne
        test = false;
    }
    if ( test )
    {
        string::size_type count = config.length() - extension.length();
        config = config.substr(0, count);
    }
    else
    {
        GWt_dialog checkConfigNameDialog(" checking config file name", " the file must have the extension " + extension, GWt_dialog::Error,true,true);
        checkConfigNameDialog.exec();
    }
    return test;
}



void PspaApplication::removeBeamLine() {
  createBeamLine();
  executeWidget_->updateSections();
}

void PspaApplication::chartPlot2vec(WContainerWidget* toto,vector<double>& xcor,vector<double>& ycor,SeriesType seriesType,FillRangeType fillRange,AxisValue value,bool isGridLinesEnables,string title,string legendx,string legendy,int width,int height,bool makeIcon)
{
  int nbpts = xcor.size();
  cout << " PspaApplication::chartPlot2vec nbpts = " << nbpts << endl;

  WStandardItemModel *model = new WStandardItemModel(nbpts, 2, toto);
  for (int i = 0; i < nbpts; ++i) {
    model->setData(i, 0, xcor.at(i));
    model->setData(i, 1, ycor.at(i));
    //    cout << " PspaApplication::chartPlot2vec el= " << i+1 << " x= " << xcor.at(i) << " y= " << ycor.at(i) << endl;
  }
    
  WCartesianChart *chart = new WCartesianChart(toto);
  if (!makeIcon) chart->setTitle(title);

  chart->initLayout();  
  chart->setModel(model);        // set the model
  chart->setXSeriesColumn(0);    // set the column that holds the X data
  
  chart->setType(ScatterPlot);   // set type to ScatterPlot
  chart->setLegendEnabled(false); // enable the legend  

  // Provide space for the X and Y axis and title.
  chart->setPlotAreaPadding(80, Left); 
  chart->setPlotAreaPadding(40, Bottom);
  chart->setPlotAreaPadding(60, Top);
 
  // Typically, for mathematical functions, you want the axes to cross
  // at the 0 mark (value= ZeroValue)
  chart->axis(XAxis).setLocation(value);
  chart->axis(YAxis).setLocation(value);
  
  WDataSeries s(1,seriesType);
  s.setPen(WColor("red"));
  s.setFillRange(fillRange);
  chart->addSeries(s);
  
  WAxis& axis = chart->axis(XAxis);
  axis.setLabelFormat("%.3f");
  axis.setTitle(legendx);
    
  chart->axis(Y1Axis).setTitle(legendy);

  if(isGridLinesEnables) {
    axis.setGridLinesEnabled(true);
    chart->axis(Y1Axis).setGridLinesEnabled(true);
  }
  
  chart->resize(width,height); // WPaintedWidget must be given explicit size
  chart->setMargin(10, Top | Bottom); // ?
  chart->setMargin(WLength::Auto, Left | Right); //?

  if (makeIcon) {
    chart->setLegendEnabled(false); // enable the legend
    chart->setPlotAreaPadding(0);
    chart->setAxisPadding(0);
    WFont xAxisFont = chart->axis(XAxis).labelFont();
    xAxisFont.setSize(8);
    WFont yAxisFont = chart->axis(YAxis).labelFont();
    yAxisFont.setSize(8);
    chart->axis(XAxis).setLabelFont(xAxisFont);
    chart->axis(YAxis).setLabelFont(yAxisFont);
  }
  
#ifdef HAS_IMAGEMAGIC
  // no background
  chart->setBackground(WBrush(Wt::NoBrush));

  // axis black
  chart->axis(XAxis).setPen(WColor("black"));
  chart->axis(YAxis).setPen(WColor("black"));
    
  std::string name;
/*
 Wt::WRasterImage pngImage("png", 1000, 1000);
  Wt::WPainter p(&pngImage);
  chart->paint(p);
  name = workingDir_ + "/chart-"+sessionId ()+".png";
  std::ofstream f(name.c_str(), std::ios::out |std::ios::trunc | std::ios::binary);
  pngImage.write(f);
*/
  
  Wt::WPdfImage pdfImage("1000", "600");
  {
   Wt::WPainter p1(&pdfImage);
    chart->paint(p1);
  }
  name = workingDir_ + "/chart-"+sessionId ()+".pdf";
  std::ofstream f1(name.c_str(), std::ios::out | std::ios::binary);
  pdfImage.write(f1);

  new WText("<a href='workingArea/chart-"+sessionId ()+".pdf' target='_blank'>Sauvegarder l'image</a>",toto);

#endif
}

void PspaApplication::dessinerHistogramme()
{
  toto_->clear();
  
  // std::time_t result = std::time(NULL);
  // GWt_dialog* histoDialog = new GWt_dialog(WString("histogramme&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(")+std::asctime(std::localtime(&result))+")",toto_,false);
  // eDialog_.push_back(histoDialog);
  // histoDialog->setMinimumSize(400,400);
  // histoDialog->setClosable(true);

  string elementLabel = choixHistoDessin_->currentText().toUTF8();    
  particleBeam* beam = dtmanage_->getDiagnosticBeam(elementLabel);
  if (beam == NULL) {
    GWt_dialog warningBeamState("histogram","the beam does not exist at the end of this element !", GWt_dialog::Error, false,true);
    warningBeamState.exec();
    return;
  }
  
  if (!beam->particleRepresentationOk()) {
    GWt_dialog warningBeamState("histogram", "the beam state does not allow providing a drawing with macroparticles !", GWt_dialog::Error, false,true);
    warningBeamState.exec();
    return;
  }

  unsigned iabs= choixVariableHisto_->currentIndex();  
  vector<double> xcor;
  vector<int> hist;
  //  double out[3]= {0.0};
  vector<string> legende;
  beam->histogramme(iabs,xcor,hist,legende);

  cout<<"xcor.size()= "<<xcor.size()<<", hist.size()= "<<hist.size()<<endl;
  //////////////////////////////////////////////////////////////////////////////////
  
  int n = hist.size();
  vector<double> x;
  x.resize(2*n+2);
  vector<double> y;
  y.resize(2*n+2);

  int j= 0;
  x.at(j)= xcor[0];
  y.at(j)= 0.0;
  j++;
  x.at(j)= xcor[0];
  y.at(j)= hist[0];
  j++;
 
  for (int i = 1; i < n; ++i) {
    x.at(j)= xcor[i];
    y.at(j)= hist[i-1];
    j++;
    x.at(j)= xcor[i];
    y.at(j)= hist[i];
    j++;
  }

  x.at(j)= xcor[n];
  y.at(j)= hist[n-1];
  j++;
  x.at(j)= xcor[n];
  y.at(j)= 0.0;
  //////////////////////////////////////////////////////////////////////////////////
  std::time_t result = std::time(NULL);
  GWt_dialog* histoDialog = new GWt_dialog(WString("histogramme&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(")+std::asctime(std::localtime(&result))+")",toto_,false);
  eDialog_.push_back(histoDialog);
  histoDialog->setMinimumSize(400,400);
  histoDialog->setClosable(true);

  histoDialog->show();

  WContainerWidget *w= histoDialog->contents();

  // // legendes
  // string unites[2];
  // if(iabs == 0 || iabs == 1 || iabs == 2) {
  //   unites[0]= unites[1]= " mm";
  // }
  // if(iabs == 3 || iabs == 4) {
  //   unites[0]= unites[1]= " mrad";
  // }
  // if(iabs == 5) {
  //   unites[0]= " MeV"; unites[1]= " KeV";
  // }

  new WText(" case : " + nameOfCase_, w);
  new WBreak(w);
  new WText(" after element :  " + elementLabel, w);

  for (int k=0 ; k < legende.size(); k++) {
    new WBreak(w);
    new WText(legende.at(k), w);
  }


  // new WText(" entries : "+ mixedTools::intToString((int)out[0]),w);
  // new WBreak(w);
  // new WText(" mean : "+ mixedTools::doubleToString(out[1])+unites[0],w);
  // new WBreak(w);
  // new WText(" sigma rms : "+ mixedTools::doubleToString(out[2])+unites[1],w);
  //////////////////////////////////////////////////////////////////////////////////

  string titre;
  if(iabs == 0) titre="x-coordinate";
  if(iabs == 1) titre="y-coordinate";
  if(iabs == 2) titre="z-coordinate";
  if(iabs == 3) titre="xp-divergence";
  if(iabs == 4) titre="yp-devergence";
  if(iabs == 5) titre="kinetic energy";

  string xname;
  if(iabs == 0) xname=" x (mm)";
  if(iabs == 1) xname=" y (mm)";
  if(iabs == 2) xname=" z (mm)";
  if(iabs == 3) xname=" xp (mrad)";
  if(iabs == 4) xname=" yp (mrad)";
  if(iabs == 5) xname=" dEcin/Ecin (%)";

  string yname;
  Wt::Chart::SeriesType seriesType = LineSeries;
  Wt::Chart::FillRangeType fillRange = ZeroValueFill;
  Wt::Chart::AxisValue location = MinimumValue;
  bool isGridLinesEnabled = true; 
  chartPlot2vec(w,x,y,seriesType,fillRange,location,isGridLinesEnabled,titre,xname,yname,500,300);
}