/***************************************************************************
                          commandlineoptions.cpp  -  description
                             -------------------
    begin                : Don Sep 19 2002
    copyright            : (C) 2002 by alex
    email                : alex@rsh-318
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include <qapplication.h>
#include "commandlineoptions.h"
#include <iostream>

#include "CTuxCardsConfiguration.h"
#include "./information/xmlpersister.h"
#include "./information/htmlwriter.h"
#include "version.h"


// -------------------------------------------------------------------------------
CommandLineOptions::CommandLineOptions(int argc, char** argv)
// -------------------------------------------------------------------------------
{
  this->argc=argc;
  this->argv=argv;

  QString option = argv[1];
  if (option=="-e"){
    if (argc > 2 && QString(argv[2])=="html")
    {
      if (argc <= 4)
        htmlExport(argc==4 ? argv[3] : "");
      else if (argc == 5)
        htmlExport(argv[3], argv[4]);
      else
        printUsage();
    }
    else
    {
      printUsage();
    }
    exit(0);
    
  }else if (option=="-v"){
    std::cout<<"Tuxcards - The Notebook for Tuxfreaks"<<std::endl
        <<TUX_VERSION<<std::endl
        <<"www.tuxcards.de"<<std::endl
        <<"written by Alexander Theel"<<std::endl;
    exit(0);
  }else if (option=="-h"){
    printUsage();
    exit(0);
  }

}


/**
 * export to default directory
 */
// -------------------------------------------------------------------------------
void CommandLineOptions::htmlExport(QString fileName)
// -------------------------------------------------------------------------------
{
  // Verzeichnis erstellen
  QDir dir(QDir::homeDirPath());
  dir.mkdir("tuxcardsHTML");
  dir.cd("tuxcardsHTML");

  htmlExport(fileName, dir.absPath());
}


// -------------------------------------------------------------------------------
void CommandLineOptions::htmlExport( QString fileName, QString dirPath )
// -------------------------------------------------------------------------------
{
   QApplication qApp( argc, argv );
   if (fileName=="")
   {
      CTuxCardsConfiguration& refConfig = CTuxCardsConfiguration::getInstance();
      fileName = refConfig.getStringValue( CTuxCardsConfiguration::S_DATA_FILE_NAME );
   }
   if (!QFile::exists(fileName))
   {
      std::cout<<"No file specified or given file does not exist."<<std::endl;
      return;
   }
   if ( ! QDir(dirPath).exists() )
   {
      std::cout<<"The given directory '"<<dirPath<<"' does not exist."<<std::endl;
      return;
   }

   QFile file(fileName);
   CInformationCollection* collection = XMLPersister::createInformationCollection( file );
   HTMLWriter::writeCollectionToHTMLFile( *collection, dirPath );
   std::cout<<"File '"<<fileName<<"' exported to "<<dirPath<<std::endl;
}


// -------------------------------------------------------------------------------
void CommandLineOptions::printUsage()
// -------------------------------------------------------------------------------
{
  std::cout<<"TuxCards is a hierarchical notebook. "
      <<"Every kind of notes and ideas may be "
      <<"managed and sorted within a tree structure.\n"
      <<"\n"
      <<"Usage:\ttuxcards [OPTION] [FILE]\n\n"
      <<"Examples:\n"
      <<"  tuxcards                           # starts the application\n"
      <<"  tuxcards <filename>                # starts the application using <filename>\n"
      <<"  tuxcards -e html                   # exports to html using the datafile found\n"
      <<"                                       in .tuxcards\n"
      <<"  tuxcards -e html <filename>        # exports to html using the <filename> as input\n"
      <<"  tuxcards -e html <filename> <dir>  # exports to html using the <filename> as input\n"
      <<"                                       and the specified <dir> as export directory\n"
      <<"\n"
      <<"Options:\n"
      <<"  -e html           HTML export; An optional file name and directory may be given.\n"
      <<"                    If no file is specified the file name is extracted from the\n"
      <<"                    configuration file '~/.tuxcards'. If no directory is given, the\n"
      <<"                    the html export will be done to the default export directory\n"
      <<"                    '~/tuxcardsHTML'.\n"
      <<"  -v                Print TuxCards version.\n"
      <<"  -h                Shows these usage information.\n"
      <<"\n"
      <<"For questions or bugs write to Alexander Theel <tuxcards@gmx.net>."
      <<std::endl;
}