/* This file is part of the KDE libraries
   Copyright (C) 2000, 2009 David Faure <faure@kde.org>

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

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/

#include "kdebugdialog.h"
#include "klistdebugdialog.h"
#include <kcmdlineargs.h>
#include <kaboutdata.h>
#include <kstandarddirs.h>
#include <QTextStream>
#include <klocale.h>
#include <kdebug.h>
#include <kuniqueapplication.h>
#include <kconfig.h>
#include <kconfiggroup.h>

#include <QFile>

static KAbstractDebugDialog::AreaMap readAreas()
{
    KAbstractDebugDialog::AreaMap areas;
    // Group 0 is not used anymore. kDebug() uses the area named after the appname.
    //areas.insert( "      0" /*cf rightJustified below*/, "0 (generic)" );

  const QString confAreasFile = KStandardDirs::locate("config", "kdebug.areas");
  QFile file( confAreasFile );
  if (!file.open(QIODevice::ReadOnly)) {
    kWarning() << "Couldn't open" << confAreasFile;
  } else {
    QString data;

    QTextStream ts(&file);
    ts.setCodec( "ISO-8859-1" );
    while (!ts.atEnd()) {
      data = ts.readLine().simplified();

      int pos = data.indexOf("#");
      if ( pos != -1 ) {
        data.truncate( pos );
        data = data.simplified();
      }

      if (data.isEmpty())
        continue;

      const int space = data.indexOf(' ');
      if (space == -1)
          kError() << "No space:" << data << endl;

      bool longOK;
      unsigned long number = data.left(space).toULong(&longOK);
      if (!longOK)
          kError() << "The first part wasn't a number : " << data << endl;

      const QString description = data.mid(space).simplified();

      // In the key, right-align the area number to 6 digits for proper sorting
      const QString key = QString::number(number).rightJustified(6);
      areas.insert( key, QString("%1 %2").arg(number).arg(description) );
    }
  }

  bool ok;
#ifndef NDEBUG
  // Builtin unittest for our expectations of QString::toInt
  QString("4a").toInt(&ok);
  Q_ASSERT(!ok);
#endif

  KConfig config("kdebugrc", KConfig::NoGlobals);
  Q_FOREACH(const QString& groupName, config.groupList()) {
      groupName.toInt(&ok);
      if (ok)
          continue; // we are not interested in old-style number-only groups
      areas.insert(groupName, groupName); // ID == description
  }

  return areas;
}

int main(int argc, char ** argv)
{
  KAboutData data( "kdebugdialog", 0, ki18n( "KDebugDialog"),
    "1.0", ki18n("A dialog box for setting preferences for debug output"),
    KAboutData::License_GPL, ki18n("Copyright 1999-2009, David Faure <email>faure@kde.org</email>"));
  data.addAuthor(ki18n("David Faure"), ki18n("Maintainer"), "faure@kde.org");
  data.setProgramIconName("tools-report-bug");
  KCmdLineArgs::init( argc, argv, &data );

  KCmdLineOptions options;
  options.add("fullmode", ki18n("Show the fully-fledged dialog instead of the default list dialog"));
  options.add("on <area>", ki18n(/*I18N_NOOP TODO*/ "Turn area on"));
  options.add("off <area>", ki18n(/*I18N_NOOP TODO*/ "Turn area off"));
  KCmdLineArgs::addCmdLineOptions( options );
  KUniqueApplication::addCmdLineOptions();
  KUniqueApplication app;
  KCmdLineArgs *args = KCmdLineArgs::parsedArgs();

  KAbstractDebugDialog * dialog;
  if (args->isSet("fullmode")) {
      dialog = new KDebugDialog(readAreas());
  } else {
      KListDebugDialog * listdialog = new KListDebugDialog(readAreas());
      if (args->isSet("on"))
      {
          listdialog->activateArea( args->getOption("on").toUtf8(), true );
          /*listdialog->save();
          listdialog->config()->sync();
          return 0;*/
      } else if ( args->isSet("off") )
      {
          listdialog->activateArea( args->getOption("off").toUtf8(), false );
          /*listdialog->save();
          listdialog->config()->sync();
          return 0;*/
      }
      dialog = listdialog;
  }

  /* Show dialog */
  int nRet = dialog->exec();
  if( nRet == QDialog::Accepted )
  {
      dialog->save();
      dialog->config()->sync();
  }
  else
    dialog->config()->markAsClean();

  return 0;
}
