#include <string>
#include <iostream>
#include <iomanip>

#include "TROOT.h"
#include "TFile.h"

#include "km3net-dataformat/offline/Head.hh"
#include "km3net-dataformat/offline/MultiHead.hh"
#include "km3net-dataformat/offline/Evt.hh"

#include "JDAQ/JDAQEventIO.hh"
#include "JDAQ/JDAQTimesliceIO.hh"
#include "JDAQ/JDAQSummarysliceIO.hh"

#include "JTrigger/JTriggerParameters.hh"

#include "JROOT/JRootToolkit.hh"
#include "JSupport/JSupport.hh"
#include "JLang/JTypeList.hh"
#include "JLang/JType.hh"
#include "JLang/JNullType.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


namespace {

  using namespace JPP;
  
  /**
   * Print class streamer version.
   *
   * \param  out        output stream
   * \param  name       class name
   * \param  file       pointer to ROOT file
   */
  inline void print(std::ostream& out, const char* name, TFile* file = NULL)
  {
    using namespace std;
    using namespace JPP;

    TDictionary* dictionary = TDictionary::GetDictionary(name);

    out << setw(40) << left << name << ' ';

    if (dictionary != NULL) {
      out << setw( 4) << right << dynamic_cast<TClass*>(dictionary)->GetClassVersion() << ' ';
    }

    if (file != NULL) {
      out << setw(4) << right << getStreamerVersion(file, name);
    }

    cout << endl;
  }

  
  /**
   * Print class streamer version.
   *
   * \param  out        output stream
   * \param  typelist   type list
   * \param  file       pointer to ROOT file
   */
  inline void print(std::ostream& out, JType<JNullType> typelist, TFile* file = NULL)
  {}

  
  /**
   * Print class streamer version.
   *
   * \param  out        output stream
   * \param  typelist   type list
   * \param  file       pointer to ROOT file
   */
  template<class JHead_t, class JTail_t>
  inline void print(std::ostream& out, JType< JTypeList<JHead_t, JTail_t> > typelist, TFile* file = NULL)
  {
    print(out, JHead_t::Class_Name(), file);
    print(out, JType<JTail_t>(),      file);
  }  
}


/**
 * \file
 *
 * Auxiliary program to print ROOT class version information.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;
  
  string  input_file;
  string  class_name;
  int     debug;

  try { 

    JParser<> zap("Auxiliary program to print ROOT class version information.");
    
    zap['f'] = make_field(input_file)      = "";
    zap['c'] = make_field(class_name)      = "";
    zap['d'] = make_field(debug)           = 1;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }


  using namespace JPP;

  JRootInputFile file;

  if (input_file != "") {

    try {      
      file.open(input_file.c_str());
    }
    catch(const exception& error) {
      FATAL(error.what() << endl);
    }

    if (!file.is_open()) {
      FATAL("Error opening file " << input_file << endl);
    }
  }

  if (class_name != "")
    print(cout, class_name.c_str(),   file.getFile());
  else
    print(cout, JType<JAllDataTypes_t>(), file.getFile());
}