/***************************************************************************
 *   Copyright (C) 2006 by Stephen Leaf                                    *
 *   smileaf@smileaf.org                                                   *
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 *   This program 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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

/* Adapted for use in the Trinity Desktop Environment */

#include <tqlayout.h>

#include <klocale.h>
#include <kglobal.h>
#include <tdeparts/genericfactory.h>
#include <ksimpleconfig.h>
#include <kglobalsettings.h>
#include <kstandarddirs.h>
#include <kurlrequester.h>
#include <klistview.h>
#include <kopenwith.h>
#include <kpropertiesdialog.h>
#include <tdeio/job.h>
#include <tqdir.h>
#include <tqheader.h>

#include "autostart.h"

class desktop : public TDEListViewItem {

public:
  KService * service;
  bool bisDesktop;
  KURL fileName;
  int iStartOn;
  enum { AutoStart, Shutdown, ENV };

desktop( TQString service, int startOn, TQListView *parent ): TDEListViewItem( parent ) {
  bisDesktop = false;
  iStartOn = startOn;
  fileName = KURL(service);
  if (service.endsWith(".desktop")) {
    this->service = new KService(service);
    bisDesktop = true;
  }
}

bool isDesktop() { return bisDesktop; }

int startOn() { return iStartOn; }
TQString fStartOn() {
  switch (iStartOn) {
    case AutoStart:
      return i18n("Startup");
      break;
    case Shutdown:
      return i18n("Shutdown");
      break;
    case ENV:
      return i18n("ENV");
      break;
    default:
      return "";
      break;
  }
}

void setStartOn(int start) {
  iStartOn = start;
  setText(2, fStartOn() );
  TDEStandardDirs *ksd = new TDEStandardDirs();
  TDEGlobalSettings * kgs = new TDEGlobalSettings();
  TQString path;
  switch (iStartOn) {
    case AutoStart:
      path = kgs->autostartPath()+"/";
      break;
    case Shutdown:
      path = ksd->localtdedir()+"shutdown/";
      break;
    case ENV:
      path = ksd->localtdedir()+"env/";
      break;
  }
  TDEIO::file_move(fileName, KURL( path + fileName.fileName() ));
  fileName = path + fileName.fileName();
}

void updateService() {
  if (bisDesktop) service = new KService( fileName.path() );
  }
  ~desktop() {
    delete service;
  }
};

typedef KGenericFactory<autostart, TQWidget> autostartFactory;

K_EXPORT_COMPONENT_FACTORY( kcm_autostart, autostartFactory("kcmautostart"))

autostart::autostart(TQWidget *parent, const char *name, const TQStringList&)
    : TDECModule(parent, name), myAboutData(0)
{
  TQGridLayout * AutostartConfigLayout = new TQGridLayout( this, 1, 1, 11, 6, "AutostartConfigLayout");

  btnAdd = new KPushButton( this, "btnAdd" );

  AutostartConfigLayout->addWidget( btnAdd, 0, 1 );

  listCMD = new TDEListView( this, "listCMD" );
  listCMD->addColumn( i18n( "Name" ) );
  listCMD->addColumn( i18n( "Command" ) );
  listCMD->addColumn( i18n( "Run on" ) );
  listCMD->setAllColumnsShowFocus( TRUE );
  listCMD->setShowSortIndicator( TRUE );

  AutostartConfigLayout->addMultiCellWidget( listCMD, 0, 4, 0, 0 );
  TQSpacerItem * spacer1 = new TQSpacerItem( 71, 170, TQSizePolicy::Minimum, TQSizePolicy::Expanding );
  AutostartConfigLayout->addItem( spacer1, 4, 1 );

  btnRemove = new KPushButton( this, "btnRemove" );

  AutostartConfigLayout->addWidget( btnRemove, 1, 1 );

  btnProperties = new TQPushButton( this, "btnProperties" );

  AutostartConfigLayout->addWidget( btnProperties, 2, 1 );

  cmbStartOn = new TQComboBox( this, "cmbStartOn" );

  AutostartConfigLayout->addWidget( cmbStartOn, 3, 1 );

  cmbStartOn->insertItem( i18n("Startup") );
  cmbStartOn->insertItem( i18n("Shutdown") );
  cmbStartOn->insertItem( i18n("ENV") );
  cmbStartOn->setEnabled(false);

  btnAdd->setText( i18n( "&Add" ) );
  btnAdd->setAccel( TQKeySequence( i18n( "Alt+A" ) ) );
  btnRemove->setText( i18n( "&Remove" ) );
  btnRemove->setAccel( TQKeySequence( i18n( "Alt+R" ) ) );
  btnProperties->setText( i18n( "&Properties" ) );
  btnProperties->setAccel( TQKeySequence( i18n( "Alt+P" ) ) );

  connect( btnAdd, TQT_SIGNAL(clicked()), TQT_SLOT(addCMD()) );
  connect( btnRemove, TQT_SIGNAL(clicked()), TQT_SLOT(removeCMD()) );
  connect( listCMD, TQT_SIGNAL(doubleClicked(TQListViewItem*)), TQT_SLOT(editCMD(TQListViewItem*)) );
  connect( btnProperties, TQT_SIGNAL(clicked()), TQT_SLOT(editCMD()) );
  connect( cmbStartOn, TQT_SIGNAL(activated(int)), TQT_SLOT(setStartOn(int)) );
  connect( listCMD, TQT_SIGNAL(selectionChanged(TQListViewItem*)), TQT_SLOT(selectionChanged(TQListViewItem*)) );

  listCMD->setFocus();

  load();

  TDEAboutData* about = new TDEAboutData("autostart", I18N_NOOP("TDE Autostart Manager"), "0.5",
    I18N_NOOP("TDE Autostart Manager Control Panel Module"),
    TDEAboutData::License_GPL,
    I18N_NOOP("(c) 2006 Stephen Leaf"), 0, 0);

  about->addAuthor("Stephen Leaf", 0, "smileaf@smileaf.org");
  setAboutData( about );

};


autostart::~autostart()
{}

void autostart::load()
{
  kgs = new TDEGlobalSettings();
  kdDebug() << "According to TDE your Autostart location is: " << kgs->autostartPath() << endl;
  TDEStandardDirs *ksd = new TDEStandardDirs();

  TQString path;
  for (int x=0;x<3;x++) {
    if (x==0)
      path = kgs->autostartPath();
    else if (x==1)
      path = ksd->localtdedir() + "/shutdown";
    else if (x==2)
      path = ksd->localtdedir() + "/env";

    if (! TDEStandardDirs::exists(path))
      TDEStandardDirs::makeDir(path);

    TQDir *autostartdir = new TQDir( path );
    autostartdir->setFilter( TQDir::Files);
    const TQFileInfoList *list = autostartdir->entryInfoList();
    TQFileInfoListIterator it( *list );
    TQFileInfo *fi;
    while ( (fi = it.current()) != 0 ) {
      TQString filename = fi->fileName();
      desktop * item = new desktop( fi->absFilePath(), x, listCMD );
      if ( ! item->isDesktop() ) {
        if ( fi->isSymLink() ) {
          TQString link = fi->readLink();
          item->setText( 0, filename );
          item->setText( 1, link );
          item->setText( 2, item->fStartOn() );
        }
        else {
          item->setText( 0, filename );
          item->setText( 1, filename );
          item->setText( 2, item->fStartOn() );
        }
      }
      else {
        item->setText( 0, item->service->name() );
        item->setText( 1, item->service->exec() );
        item->setText( 2, item->fStartOn() );
      }
      ++it;
    }
  }
}

void autostart::addCMD() {
  KService::Ptr service = 0L;
  KOpenWithDlg owdlg( this );
  if (owdlg.exec() != TQDialog::Accepted)
    return;
  service = owdlg.service();

  Q_ASSERT(service);
  if (!service)
    return; // Don't crash if KOpenWith wasn't able to create service.

  KURL desktopTemplate;

  if ( service->desktopEntryName().isNull() ) {
    desktopTemplate = KURL( kgs->autostartPath() + service->name() + ".desktop" );
    KSimpleConfig ksc(desktopTemplate.path());
    ksc.setGroup("Desktop Entry");
    ksc.writeEntry("Encoding","UTF-8");
    ksc.writeEntry("Exec",service->exec());
    ksc.writeEntry("Icon","exec");
    ksc.writeEntry("Path","");
    ksc.writeEntry("Terminal",false);
    ksc.writeEntry("Type","Application");
    ksc.sync();

    // FIXME: Make it so you can't give focus to the parent before this goes away.
    // If the parent closes before this does, a crash is generated.
    KPropertiesDialog dlg( desktopTemplate, this, 0, true /*modal*/, false /*no auto-show*/ );
    if ( dlg.exec() != TQDialog::Accepted )
      return;
  }
  else {
    desktopTemplate = KURL( locate("apps", service->desktopEntryPath()) );

    // FIXME: Make it so you can't give focus to the parent before this goes away.
    // If the parent closes before this does, a crash is generated.
    KPropertiesDialog dlg( desktopTemplate, KURL(kgs->autostartPath()),
      service->name() + ".desktop", this, 0, true /*modal*/, false /*no auto-show*/ );
    if ( dlg.exec() != TQDialog::Accepted )
      return;
  }

  desktop * item = new desktop( kgs->autostartPath() + service->name() + ".desktop", desktop::AutoStart, listCMD );
  item->setText( 0, item->service->name() );
  item->setText( 1, item->service->exec() );
  item->setText( 2, item->fStartOn() );
  emit changed(true);
}

void autostart::removeCMD() {
  if (!listCMD->selectedItem())
    return;

  TDEIO::del(((desktop *)listCMD->selectedItem())->fileName);

  listCMD->takeItem( listCMD->selectedItem() );
  kdDebug() << "Deleting file" << endl;

  emit changed(true);
}

void autostart::editCMD(TQListViewItem* entry) {
  if (!entry)
    return;

  ((desktop*)entry)->updateService();
  KFileItem kfi = KFileItem( KFileItem::Unknown, KFileItem::Unknown, KURL( ((desktop*)entry)->fileName ), true );
  if (! editCMD( kfi )) return;

  // Remove and recreate
  if (((desktop*)entry)->isDesktop()) {
    listCMD->takeItem( listCMD->selectedItem() );
    desktop * item = new desktop( ((desktop*)entry)->fileName.path(), ((desktop*)entry)->startOn(), listCMD );
    item->setText( 0, ((desktop*)entry)->service->name() );
    item->setText( 1, ((desktop*)entry)->service->exec() );
    item->setText( 2, ((desktop*)entry)->fStartOn() );
  }
}

bool autostart::editCMD( KFileItem item) {
  KPropertiesDialog dlg( &item, this );
  if ( dlg.exec() != TQDialog::Accepted )
    return false;

  kdDebug() << "Saving file" << endl;
  emit changed(true);
  return true;
}

void autostart::editCMD() {
  editCMD( listCMD->selectedItem() );
}

void autostart::setStartOn( int index ) {
  ((desktop*)listCMD->currentItem())->setStartOn(index);
}

void autostart::selectionChanged(TQListViewItem* entry) {
  cmbStartOn->setEnabled( (entry != 0) );
  cmbStartOn->setCurrentItem( ((desktop*)entry)->startOn() );
}

void autostart::defaults(){}


void autostart::save()
{}


int autostart::buttons()
{
  return TDECModule::Apply|TDECModule::Help;
}


TQString autostart::quickHelp() const
{
  return i18n("This module helps configure which applications TDE runs when starting and exiting.");
}