// -------------------------------------------------------------------------
// -----                    FairConstField source file                  -----
// -----                Created 30/01/07  by M. Al/Turany              -----
// -------------------------------------------------------------------------
#include "FairConstField.h"

#include "FairConstPar.h"               // for FairConstPar
#include "FairRun.h"                    // for FairRun
#include "FairRuntimeDb.h"              // for FairRuntimeDb

#include "Riosfwd.h"                    // for ostream
#include "TString.h"                    // for operator<<, TString

#include <iomanip>                      // for operator<<, setw
#include <iostream>                     // for operator<<, basic_ostream, etc

using namespace std;

// -----   Default constructor   -------------------------------------------
FairConstField::FairConstField()
  : fXmin(0),
    fXmax(0),
    fYmin(0),
    fYmax(0),
    fZmin(0),
    fZmax(0),
    fBx(0),
    fBy(0),
    fBz(0)
{
  fType = 0;
}
// -------------------------------------------------------------------------



// -----   Standard constructor   ------------------------------------------
FairConstField::FairConstField(const char* name, Double_t xMin,
                               Double_t xMax, Double_t yMin,
                               Double_t yMax, Double_t zMin,
                               Double_t zMax, Double_t bX,
                               Double_t bY, Double_t bZ)
  : FairField(name),
    fXmin(xMin),
    fXmax(xMax),
    fYmin(yMin),
    fYmax(yMax),
    fZmin(zMin),
    fZmax(zMax),
    fBx(bX),
    fBy(bY),
    fBz(bZ)

{
  fType = 0;
}
// -------------------------------------------------------------------------



// --------   Constructor from PndFieldPar   -------------------------------
FairConstField::FairConstField(FairConstPar* fieldPar)
  : FairField(),
    fXmin(0),
    fXmax(0),
    fYmin(0),
    fYmax(0),
    fZmin(0),
    fZmax(0),
    fBx(0),
    fBy(0),
    fBz(0)
{
  if ( ! fieldPar ) {
    cerr << "-W- FairConstField::FairConstField: empty parameter container!"<< endl;
    fType= -1;
  } else {
    fXmin = fieldPar->GetXmin();
    fXmax = fieldPar->GetXmax();
    fYmin = fieldPar->GetYmin();
    fYmax = fieldPar->GetYmax();
    fZmin = fieldPar->GetZmin();
    fZmax = fieldPar->GetZmax();
    fBx   = fieldPar->GetBx();
    fBy   = fieldPar->GetBy();
    fBz   = fieldPar->GetBz();
    fType = fieldPar->GetType();
  }
}
// -------------------------------------------------------------------------



// -----   Destructor   ----------------------------------------------------
FairConstField::~FairConstField() { }
// -------------------------------------------------------------------------



// -----   Set field region   ----------------------------------------------
void FairConstField::SetFieldRegion(Double_t xMin, Double_t xMax,
                                    Double_t yMin, Double_t yMax,
                                    Double_t zMin, Double_t zMax)
{
  fXmin = xMin;
  fXmax = xMax;
  fYmin = yMin;
  fYmax = yMax;
  fZmin = zMin;
  fZmax = zMax;
}
// -------------------------------------------------------------------------



// -----   Set field values   ----------------------------------------------
void FairConstField::SetField(Double_t bX, Double_t bY, Double_t bZ)
{
  fBx   = bX;
  fBy   = bY;
  fBz   = bZ;
}
// -------------------------------------------------------------------------



// -----   Get x component of field   --------------------------------------
Double_t FairConstField::GetBx(Double_t x, Double_t y, Double_t z)
{
  if ( x < fXmin  ||  x > fXmax  ||
       y < fYmin  ||  y > fYmax  ||
       z < fZmin  ||  z > fZmax ) { return 0.; }
  return fBx;
}
// -------------------------------------------------------------------------



// -----   Get y component of field   --------------------------------------
Double_t FairConstField::GetBy(Double_t x, Double_t y, Double_t z)
{
  if ( x < fXmin  ||  x > fXmax  ||
       y < fYmin  ||  y > fYmax  ||
       z < fZmin  ||  z > fZmax ) { return 0.; }
  return fBy;
}
// -------------------------------------------------------------------------



// -----   Get z component of field   --------------------------------------
Double_t FairConstField::GetBz(Double_t x, Double_t y, Double_t z)
{
  if ( x < fXmin  ||  x > fXmax  ||
       y < fYmin  ||  y > fYmax  ||
       z < fZmin  ||  z > fZmax ) { return 0.; }
  return fBz;
}
// -------------------------------------------------------------------------



// -----   Screen output   -------------------------------------------------
void FairConstField::Print()
{
  cout << "======================================================" << endl;
  cout << "----  " << fTitle << " : " << fName << endl;
  cout << "----" << endl;
  cout << "----  Field type    : constant" << endl;
  cout << "----" << endl;
  cout << "----  Field regions : " << endl;
  cout << "----        x = " << setw(4) << fXmin << " to " << setw(4)
       << fXmax << " cm" << endl;
  cout << "----        y = " << setw(4) << fYmin << " to " << setw(4)
       << fYmax << " cm" << endl;
  cout << "----        z = " << setw(4) << fZmin << " to " << setw(4)
       << fZmax << " cm" << endl;
  cout.precision(4);
  cout << "----  B = ( " << fBx << ", " << fBy << ", " << fBz << " ) kG"
       << endl;
  cout << "======================================================" << endl;
}
// -------------------------------------------------------------------------
// ---------   Fill the parameters   --------------------------------------------
void FairConstField::FillParContainer()
{
  TString MapName=GetName();
//  cout << "FairConstField::FillParContainer() " << endl;
  FairRun* fRun=FairRun::Instance();
  FairRuntimeDb* rtdb=fRun->GetRuntimeDb();
  Bool_t kParameterMerged=kTRUE;
  FairConstPar* Par = (FairConstPar*) rtdb->getContainer("FairConstPar");
  Par->SetParameters(this);
  Par->setInputVersion(fRun->GetRunId(),1);
  Par->setChanged();

}


ClassImp(FairConstField)