/*=========================================================================
                                                                                
  Program:   gdcm
  Module:    $RCSfile: PrintDicomDir.cxx,v $
  Language:  C++
  Date:      $Date: 2005/06/08 08:09:07 $
  Version:   $Revision: 1.23 $
                                                                                
  Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
  l'Image). All rights reserved. See Doc/License.txt or
  http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
                                                                                
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notices for more information.
                                                                                
=========================================================================*/
#include "gdcmDocument.h"
#include "gdcmDicomDir.h"
#include "gdcmValEntry.h"
#include "gdcmDicomDirPatient.h"
#include "gdcmDicomDirStudy.h"
#include "gdcmDicomDirSerie.h"
#include "gdcmDicomDirImage.h"
#include "gdcmTS.h"
#include "gdcmDebug.h"

#include "gdcmArgMgr.h"

#include <fstream>
#include <iostream>

int main(int argc, char* argv[])
{
   START_USAGE(usage)
   " \n PrintDicomDir :\n",
   " Display the tree-like structure of a DICOMDIR File",
   " usage: PrintDicomDir filein=fileName [level=n] [debug] ",
   "        detail = 1 : Patients, 2 : Studies, 3 : Series, 4 : Images ",
   "                 5 : Full Content ",
   "        level = 0,1,2 : depending on user (what he wants to see)",
   "        debug    : user wants to run the program in 'debug mode' ",
   FINISH_USAGE

   // Initialize Arguments Manager   
   gdcm::ArgMgr *am= new gdcm::ArgMgr(argc, argv);
  
   if (argc == 1) 
   {
      am->ArgMgrUsage(usage); // Display 'usage'
      delete am;
      return 0;
   }
  
   gdcm::DicomDir *e1;
   gdcm::TSKey v;

   gdcm::DicomDirPatient *pa;
   gdcm::DicomDirStudy *st;
   gdcm::DicomDirSerie *se;
   gdcm::DicomDirImage *im;
  
   char *fileName;
   fileName  = am->ArgMgrWantString("filein",usage); 

   int level  = am->ArgMgrGetInt("level", 2);

   int detailLevel = am->ArgMgrGetInt("detail", 2);

   if (am->ArgMgrDefined("debug"))
      gdcm::Debug::DebugOn();

   /* if unused Param we give up */
   if ( am->ArgMgrPrintUnusedLabels() )
   { 
      am->ArgMgrUsage(usage);
      delete am;
      return 0;
   } 

   // new style is useless, since it has no effect for *reading* a DICOMDIR
   // (only meaningfull when *creating* a DICOMDIR)

   e1 = new gdcm::DicomDir( fileName );

   //e1 = new gdcm::DicomDir();
   //e1->SetParseDir(false);
   //e1->Load(  fileName );

   // Test if the DicomDir is readable
   if( !e1->IsReadable() )
   {
      std::cout<<"          DicomDir '"<<fileName
               <<"' is not readable"<<std::endl
               <<"          ...Failed"<<std::endl;

      delete e1;
      return 1;
   }

   e1->SetPrintLevel(level);

   // Test if the DicomDir contains any Patient
   pa = e1->GetFirstPatient();
   if ( pa  == 0)
   {
      std::cout<<"          DicomDir '"<<fileName
               <<" has no patient"<<std::endl
               <<"          ...Failed"<<std::endl;

      delete e1;
      return 1;
   }

// Structure use Examples 

   switch (detailLevel)
  { 
  case 1:
     std::cout << std::endl << std::endl  
       << " =  PATIENT List ==========================================" 
       << std::endl<< std::endl;

      pa = e1->GetFirstPatient();
      while (pa) 
      {
         std::cout << pa->GetEntryValue(0x0010, 0x0010) << std::endl; // Patient's Name   
         pa = e1->GetNextPatient();    
      }
      break;

   case 2:    
      std::cout << std::endl << std::endl  
        << " = PATIENT/STUDY List =======================================" 
        << std::endl<< std::endl;

      pa = e1->GetFirstPatient();
      while ( pa ) // on degouline les PATIENT de ce DICOMDIR
      {  
         std::cout << pa->GetEntryValue(0x0010, 0x0010) << std::endl; // Patient's Name 

         st = pa->GetFirstStudy();
         while ( st ) { // on degouline les STUDY de ce patient
            std::cout << "--- "<< st->GetEntryValue(0x0008, 0x1030) << std::endl; // Study Description
            st = pa->GetNextStudy();
         }
         pa = e1->GetNextPatient();    
      }   
      break;

   case 3: 
      std::cout << std::endl << std::endl  
        << " =  PATIENT/STUDY/SERIE List ==================================" 
        << std::endl<< std::endl;

      pa = e1->GetFirstPatient(); 
      while ( pa )   // on degouline les PATIENT de ce DICOMDIR
      {
       // Patient's Name, Patient ID 
         std::cout << "Pat.Name:[" << pa->GetEntryValue(0x0010, 0x0010) <<"]"; // Patient's Name
         std::cout << " Pat.ID:[";
         std::cout << pa->GetEntryValue(0x0010, 0x0020) << "]" << std::endl; // Patient ID

         st = pa->GetFirstStudy();
         while ( st ) { // on degouline les STUDY de ce patient
            std::cout << "--- Stud.descr:["    << st->GetEntryValue(0x0008, 0x1030) << "]";// Study Description 
            std::cout << " Stud.ID:["          << st->GetEntryValue(0x0020, 0x0010);       // Study ID
            std::cout << "]" << std::endl;

            se = st->GetFirstSerie();
            while ( se ) { // on degouline les SERIES de cette study
               std::cout << "--- --- Ser.Descr:["<< se->GetEntryValue(0x0008, 0x103e)<< "]";  // Series Description
               std::cout << " Ser.nb:["         <<  se->GetEntryValue(0x0020, 0x0011);        // Series number
               std::cout << "] Mod.:["          <<  se->GetEntryValue(0x0008, 0x0060) << "]"; // Modality
               std::cout << std::endl;    
               se = st->GetNextSerie();   
            }
            st = pa->GetNextStudy();
         }
         pa = e1->GetNextPatient();    
      } 
      break;

   case 4:  
      std::cout << std::endl << std::endl  
           << " = PATIENT/STUDY/SERIE/IMAGE List ============================" 
           << std::endl<< std::endl;
 
      pa = e1->GetFirstPatient(); 
      while ( pa ) {  // les PATIENT de ce DICOMDIR
       // Patient's Name, Patient ID 
         std::cout << "Pat.Name:[" << pa->GetEntryValue(0x0010, 0x0010) <<"]"; // Patient's Name
         std::cout << " Pat.ID:[";
         std::cout << pa->GetEntryValue(0x0010, 0x0020) << "]" << std::endl; // Patient ID

         st = pa->GetFirstStudy();
         while ( st ) { // on degouline les STUDY de ce patient
            std::cout << "--- Stud.descr:["    << st->GetEntryValue(0x0008, 0x1030) << "]";// Study Description 
            std::cout << " Stud.ID:["          << st->GetEntryValue(0x0020, 0x0010);       // Study ID
            std::cout << "]" << std::endl;

            se = st->GetFirstSerie();
            while ( se ) { // on degouline les SERIES de cette study
               std::cout << "--- --- Ser.Descr:["<< se->GetEntryValue(0x0008, 0x103e)<< "]";  // Series Description
               std::cout << " Ser.nb:["         <<  se->GetEntryValue(0x0020, 0x0011);        // Series number
               std::cout << "] Mod.:["          <<  se->GetEntryValue(0x0008, 0x0060) << "]"; // Modality
               std::cout << std::endl;    

               im = se->GetFirstImage();
               while ( im ) { // on degouline les Images de cette serie
                  std::cout << "--- --- --- "<< im->GetEntryValue(0x0004, 0x1500) << std::endl; // File name
                  im = se->GetNextImage();   
               }
               se = st->GetNextSerie();   
           }
            st = pa->GetNextStudy();
        }     
        pa = e1->GetNextPatient();    
      }
      break;

   case 5:
      std::cout << std::endl << std::endl  
           << " = DICOMDIR full content ==========================================" 
           << std::endl<< std::endl;
      e1->Print();
      break;

   }  // end switch


 /*
   // Previous code.
   // Kept as an example. Please don't remove
 
   gdcm::ListDicomDirPatient::const_iterator  itPatient;
   gdcm::ListDicomDirStudy::const_iterator    itStudy;
   gdcm::ListDicomDirSerie::const_iterator    itSerie;
   gdcm::ListDicomDirImage::const_iterator    itImage;
   cout << std::endl << std::endl
        << " = Liste des PATIENT/STUDY/SERIE/IMAGE ===================================" 
        << std::endl<< std::endl;
 
   itPatient = e1->GetDicomDirPatients().begin();
   while ( itPatient != e1->GetDicomDirPatients().end() ) {  // on degouline les PATIENT de ce DICOMDIR
      std::cout << (*itPatient)->GetEntryValue(0x0010, 0x0010) << std::endl; // Patient's Name
      itStudy = ((*itPatient)->GetDicomDirStudies()).begin();
      while (itStudy != (*itPatient)->GetDicomDirStudies().end() ) { // on degouline les STUDY de ce patient
         std::cout << "--- "<< (*itStudy)->GetEntryValue(0x0008, 0x1030) << std::endl; // Study Description
         itSerie = ((*itStudy)->GetDicomDirSeries()).begin();
         while (itSerie != (*itStudy)->GetDicomDirSeries().end() ) { // on degouline les SERIES de cette study
            std::cout << "--- --- "<< (*itSerie)->GetEntryValue(0x0008, 0x103e) << std::endl; // Serie Description
            itImage = ((*itSerie)->GetDicomDirImages()).begin();
            while (itImage != (*itSerie)->GetDicomDirImages().end() ) { // on degouline les IMAGES de cette serie
               std::cout << "--- --- --- "<< (*itImage)->GetEntryValue(0x0004, 0x1500) << std::endl; // File name
               ++itImage;   
            }
            ++itSerie;   
         }
         ++itStudy;
      }  
      itPatient ++;    
   }   
 */  


   if(e1->IsReadable())
      std::cout <<std::endl<<fileName<<" is Readable"<<std::endl;
   else
      std::cout <<std::endl<<fileName<<" is NOT Readable"<<std::endl;
   std::cout<<std::flush;
   delete e1;

   return(0);
}