/* -*- mode: C++; c-file-style: "gnu" -*-
    This file is part of KMail, the KDE mail client.
    Copyright (c) 2002 Don Sanders <sanders@kde.org>

    KMail is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License, version 2, as
    published by the Free Software Foundation.

    KMail 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/

//
// This file implements various "command" classes. These command classes
// are based on the command design pattern.
//
// Historically various operations were implemented as slots of KMMainWin.
// This proved inadequate as KMail has multiple top level windows
// (KMMainWin, KMReaderMainWin, SearchWindow, KMComposeWin) that may
// benefit from using these operations. It is desirable that these
// classes can operate without depending on or altering the state of
// a KMMainWin, in fact it is possible no KMMainWin object even exists.
//
// Now these operations have been rewritten as KMCommand based classes,
// making them independent of KMMainWin.
//
// The base command class KMCommand is async, which is a difference
// from the conventional command pattern. As normal derived classes implement
// the execute method, but client classes call start() instead of
// calling execute() directly. start() initiates async operations,
// and on completion of these operations calls execute() and then deletes
// the command. (So the client must not construct commands on the stack).
//
// The type of async operation supported by KMCommand is retrieval
// of messages from an IMAP server.

#include <Nepomuk2/Tag>
#include <nepomuk2/resource.h>

#include "kmcommands.h"
#include "collectionpane.h"
#include "mailkernel.h"
#include "mailutil.h"

#include <unistd.h> // link()
#include <kprogressdialog.h>
#include <kpimutils/email.h>
#include <kdbusservicestarter.h>
#include <kdebug.h>
#include <kfiledialog.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <kbookmarkmanager.h>
#include <kstandarddirs.h>
#include <ktemporaryfile.h>
// KIO headers
#include <kio/job.h>
#include <kio/jobuidelegate.h>
#include <kio/netaccess.h>

#include <kmime/kmime_message.h>

#include <kpimidentities/identitymanager.h>
#include <akonadi/itemmodifyjob.h>
#include <akonadi/itemfetchjob.h>


#include "foldercollection.h"

#include "messagecore/mailinglist.h"
#include "composer.h"
#include "mailcommon/filter/filteraction.h"
#include "mailcommon/filter/filtermanager.h"
#include "mailcommon/filter/mailfilter.h"
#include "mailcommon/redirectdialog.h"
#include "kmmainwidget.h"
#include "undostack.h"
#ifndef QT_NO_CURSOR
#include "messageviewer/kcursorsaver.h"
#endif
#include "messageviewer/objecttreeparser.h"
#include "messageviewer/csshelper.h"
#include "messageviewer/util.h"
#include "messageviewer/mailsourceviewer.h"
#include "messageviewer/viewer.h"
#include "messageviewer/headerstrategy.h"
#include "messageviewer/headerstyle.h"
#include "kmreadermainwin.h"
#include "secondarywindow.h"
using KMail::SecondaryWindow;
#include "util.h"
#include "messageviewer/editorwatcher.h"
using MessageViewer::EditorWatcher;
#include "broadcaststatus.h"
#include "globalsettings.h"
#include "stringutil.h"
#include "messageviewer/autoqpointer.h"
#include "messageviewer/globalsettings.h"
#include "messagecore/globalsettings.h"

#include <kpimutils/kfileio.h>

#include <akonadi/itemmovejob.h>
#include <akonadi/itemcopyjob.h>
#include <akonadi/itemdeletejob.h>
#include <mailtransport/transportattribute.h>
#include <mailtransport/sentbehaviourattribute.h>

#include <messagelist/pane.h>

#include <mailtransport/transportmanager.h>
using MailTransport::TransportManager;


#include "messageviewer/nodehelper.h"
#include "messageviewer/objecttreeemptysource.h"

#include "messagecore/stringutil.h"
#include "messagecore/messagehelpers.h"

#include "messagecomposer/messagesender.h"
#include "messagecomposer/messagehelper.h"
#include "messagecomposer/messagecomposersettings.h"
#include "messagecomposer/messagefactory.h"
using MessageComposer::MessageFactory;


#include "progressmanager.h"
using KPIM::ProgressManager;
using KPIM::ProgressItem;
#include <kmime/kmime_mdn.h>
using namespace KMime;

#include "kleo/cryptobackend.h"
#include "kleo/cryptobackendfactory.h"

#include <Nepomuk2/Tag>
#include <nepomuk2/resource.h>

#include <gpgme++/error.h>

#include <QDBusConnection>
#include <QByteArray>
#include <QApplication>
#include <QList>

#include <boost/bind.hpp>
#include <algorithm>
#include <memory>


using namespace MailCommon;

/// Small helper function to get the composer context from a reply
static KMail::Composer::TemplateContext replyContext( MessageFactory::MessageReply reply )
{
  if ( reply.replyAll )
    return KMail::Composer::ReplyToAll;
  else
    return KMail::Composer::Reply;
}

/// Helper to sanely show an error message for a job
static void showJobError( KJob* job )
{
    assert(job);
    // we can be called from the KJob::kill, where we are no longer a KIO::Job
    // so better safe than sorry
    KIO::Job* kiojob = dynamic_cast<KIO::Job*>(job);
    if( kiojob && kiojob->ui() )
      kiojob->ui()->showErrorMessage();
    else
      kWarning() << "There is no GUI delegate set for a kjob, and it failed with error:" << job->errorString();
}

KMCommand::KMCommand( QWidget *parent )
  : mCountMsgs(0), mResult( Undefined ), mDeletesItself( false ),
    mEmitsCompletedItself( false ), mParent( parent )
{
}

KMCommand::KMCommand( QWidget *parent, const Akonadi::Item &msg )
  : mCountMsgs(0), mResult( Undefined ), mDeletesItself( false ),
    mEmitsCompletedItself( false ), mParent( parent )
{
  if ( msg.isValid() || msg.hasPayload<KMime::Message::Ptr>() ) {
    mMsgList.append( msg );
  }
}

KMCommand::KMCommand( QWidget *parent, const QList<Akonadi::Item> &msgList )
  : mCountMsgs(0), mResult( Undefined ), mDeletesItself( false ),
    mEmitsCompletedItself( false ), mParent( parent )
{
  mMsgList = msgList;
}



KMCommand::~KMCommand()
{
}

KMCommand::Result KMCommand::result() const
{
  if ( mResult == Undefined ) {
    kDebug() << "mResult is Undefined";
  }
  return mResult;
}

const QList<Akonadi::Item> KMCommand::retrievedMsgs() const
{
  return mRetrievedMsgs;
}

Akonadi::Item KMCommand::retrievedMessage() const
{
  if ( mRetrievedMsgs.isEmpty() )
    return Akonadi::Item();
  return *(mRetrievedMsgs.begin());
}

QWidget *KMCommand::parentWidget() const
{
  return mParent;
}

int KMCommand::mCountJobs = 0;

void KMCommand::start()
{
  connect( this, SIGNAL(messagesTransfered(KMCommand::Result)),
           this, SLOT(slotPostTransfer(KMCommand::Result)) );

  if ( mMsgList.isEmpty() ) {
      emit messagesTransfered( OK );
      return;
  }

  // Special case of operating on message that isn't in a folder
  const Akonadi::Item mb = mMsgList.first();
  if ( ( mMsgList.count() == 1 ) && MessageCore::Util::isStandaloneMessage( mb ) ) {
    mRetrievedMsgs.append(mMsgList.takeFirst());
    emit messagesTransfered( OK );
    return;
  }

  // we can only retrieve items with a valid id
  foreach ( const Akonadi::Item &item, mMsgList ) {
    if ( !item.isValid()  ) {
      emit messagesTransfered( Failed );
      return;
    }
  }

  // transfer the selected messages first
  transferSelectedMsgs();
}

void KMCommand::slotPostTransfer( KMCommand::Result result )
{
  disconnect( this, SIGNAL(messagesTransfered(KMCommand::Result)),
              this, SLOT(slotPostTransfer(KMCommand::Result)) );
  if ( result == OK ) {
    result = execute();
  }
  mResult = result;
  if ( !emitsCompletedItself() )
    emit completed( this );
  if ( !deletesItself() )
    deleteLater();
}

void KMCommand::transferSelectedMsgs()
{
  // make sure no other transfer is active
  if (KMCommand::mCountJobs > 0) {
    emit messagesTransfered( Failed );
    return;
  }

  bool complete = true;
  KMCommand::mCountJobs = 0;
  mCountMsgs = 0;
  mRetrievedMsgs.clear();
  mCountMsgs = mMsgList.count();
  uint totalSize = 0;
  // the KProgressDialog for the user-feedback. Only enable it if it's needed.
  // For some commands like KMSetStatusCommand it's not needed. Note, that
  // for some reason the KProgressDialog eats the MouseReleaseEvent (if a
  // command is executed after the MousePressEvent), cf. bug #71761.
  if ( mCountMsgs > 0 ) {
    mProgressDialog = new KProgressDialog(mParent,
      i18n("Please wait"),
      i18np("Please wait while the message is transferred",
        "Please wait while the %1 messages are transferred", mMsgList.count()));
    mProgressDialog.data()->setModal(true);
    mProgressDialog.data()->setMinimumDuration(1000);
  }

  // TODO once the message list is based on ETM and we get the more advanced caching we need to make that check a bit more clever
  if ( !mFetchScope.isEmpty() ) {
#if 0 //TODO port to akonadi
    if ( thisMsg->parent() && !thisMsg->isComplete() &&
         ( !mProgressDialog || !mProgressDialog->wasCancelled() ) )
    {
      totalSize += thisMsg->msgSizeServer();
      // emitted when the message was transferred successfully
      connect(job, SIGNAL(messageRetrieved(KMime::Message*)),
              this, SLOT(slotMsgTransfered(KMime::Message*)));
    }
#endif
    complete = false;
    KMCommand::mCountJobs++;
    Akonadi::ItemFetchJob *fetch = new Akonadi::ItemFetchJob( mMsgList, this );
    mFetchScope.fetchAttribute< MessageCore::MDNStateAttribute >();
    fetch->setFetchScope( mFetchScope );
    connect( fetch, SIGNAL(itemsReceived(Akonadi::Item::List)), SLOT(slotMsgTransfered(Akonadi::Item::List)) );
    connect( fetch, SIGNAL(result(KJob*)), SLOT(slotJobFinished()) );
  } else {
    // no need to fetch anything
    if ( !mMsgList.isEmpty() )
      mRetrievedMsgs = mMsgList;
  }

  if ( complete ) {
    delete mProgressDialog.data();
    mProgressDialog.clear();
    emit messagesTransfered( OK );
  } else {
    // wait for the transfer and tell the progressBar the necessary steps
    if ( mProgressDialog.data() ) {
      connect(mProgressDialog.data(), SIGNAL(cancelClicked()),
              this, SLOT(slotTransferCancelled()));
      mProgressDialog.data()->progressBar()->setMaximum(totalSize);
    }
  }
}

void KMCommand::slotMsgTransfered(const Akonadi::Item::List& msgs)
{
  if ( mProgressDialog.data() && mProgressDialog.data()->wasCancelled() ) {
    emit messagesTransfered( Canceled );
    return;
  }
  // save the complete messages
  mRetrievedMsgs.append( msgs );
}

void KMCommand::slotJobFinished()
{
  // the job is finished (with / without error)
  KMCommand::mCountJobs--;

  if ( mProgressDialog.data() && mProgressDialog.data()->wasCancelled() ) return;

  if ( mCountMsgs > mRetrievedMsgs.count() )
  {
    // the message wasn't retrieved before => error
    if ( mProgressDialog.data() )
      mProgressDialog.data()->hide();
    slotTransferCancelled();
    return;
  }
  // update the progressbar
  if ( mProgressDialog.data() ) {
    mProgressDialog.data()->setLabelText(i18np("Please wait while the message is transferred",
          "Please wait while the %1 messages are transferred", KMCommand::mCountJobs));
  }
  if (KMCommand::mCountJobs == 0)
  {
    // all done
    delete mProgressDialog.data();
    mProgressDialog.clear();
    emit messagesTransfered( OK );
  }
}

void KMCommand::slotTransferCancelled()
{
#if 0 //TODO port to akonadi
  // kill the pending jobs
  QList<QPointer<KMFolder> >::Iterator fit;
  for ( fit = mFolders.begin(); fit != mFolders.end(); ++fit ) {
    if (!(*fit))
      continue;
    KMFolder *folder = *fit;
    KMFolderImap *imapFolder = dynamic_cast<KMFolderImap*>(folder);
    if (imapFolder && imapFolder->account()) {
      imapFolder->account()->killAllJobs();
    }
  }
#else
    kDebug() << "AKONADI PORT: Disabled code in  " << Q_FUNC_INFO;
#endif
  KMCommand::mCountJobs = 0;
  mCountMsgs = 0;
  mRetrievedMsgs.clear();
  emit messagesTransfered( Canceled );
}


KMMailtoComposeCommand::KMMailtoComposeCommand( const KUrl &url,
                                                const Akonadi::Item &msg )
  :mUrl( url ), mMessage( msg )
{
}

KMCommand::Result KMMailtoComposeCommand::execute()
{
  KMime::Message::Ptr msg( new KMime::Message );
  uint id = 0;

  if ( mMessage.isValid() && mMessage.parentCollection().isValid() ) {
    QSharedPointer<FolderCollection> fd = FolderCollection::forCollection( mMessage.parentCollection(), false );
    id = fd->identity();
  }

  MessageHelper::initHeader( msg, KMKernel::self()->identityManager(),id );
  msg->contentType()->setCharset("utf-8");
  msg->to()->fromUnicodeString( KPIMUtils::decodeMailtoUrl( mUrl ).toLower(), "utf-8" );

  KMail::Composer * win = KMail::makeComposer( msg, false, false,KMail::Composer::New, id );
  win->setFocusToSubject();
  win->show();
  return OK;
}


KMMailtoReplyCommand::KMMailtoReplyCommand( QWidget *parent,
                                            const KUrl &url, const Akonadi::Item &msg, const QString &selection )
  :KMCommand( parent, msg ), mUrl( url ), mSelection( selection  )
{
  fetchScope().fetchFullPayload( true );
  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMCommand::Result KMMailtoReplyCommand::execute()
{
  Akonadi::Item item = retrievedMessage();
  KMime::Message::Ptr msg = MessageCore::Util::message( item );
  if ( !msg )
    return Failed;
  MessageFactory factory( msg, item.id(), MailCommon::Util::updatedCollection(item.parentCollection()) );
  factory.setIdentityManager( KMKernel::self()->identityManager() );
  factory.setFolderIdentity( MailCommon::Util::folderIdentity( item ) );
  factory.setMailingListAddresses( KMail::Util::mailingListsFromMessage( item ) );
  factory.putRepliesInSameFolder( KMail::Util::putRepliesInSameFolder( item ) );
  factory.setReplyStrategy( MessageComposer::ReplyNone );
  factory.setSelection( mSelection );
  KMime::Message::Ptr rmsg = factory.createReply().msg;
  rmsg->to()->fromUnicodeString( KPIMUtils::decodeMailtoUrl( mUrl ).toLower(), "utf-8" ); //TODO Check the UTF-8
  bool lastEncrypt = false;
  bool lastSign = false;
  KMail::Util::lastEncryptAndSignState(lastEncrypt, lastSign, msg);

  KMail::Composer * win = KMail::makeComposer( rmsg, lastSign, lastEncrypt, KMail::Composer::Reply, 0, mSelection );
  win->setReplyFocus();
  win->show();

  return OK;
}


KMMailtoForwardCommand::KMMailtoForwardCommand( QWidget *parent,
                                                const KUrl &url, const Akonadi::Item &msg )
  :KMCommand( parent, msg ), mUrl( url )
{
  fetchScope().fetchFullPayload( true );
  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMCommand::Result KMMailtoForwardCommand::execute()
{
  //TODO : consider factoring createForward into this method.
  Akonadi::Item item = retrievedMessage();
  KMime::Message::Ptr msg = MessageCore::Util::message( item );
  if ( !msg )
    return Failed;
  MessageFactory factory( msg, item.id(), MailCommon::Util::updatedCollection(item.parentCollection()) );
  factory.setIdentityManager( KMKernel::self()->identityManager() );
  factory.setFolderIdentity( MailCommon::Util::folderIdentity( item ) );
  KMime::Message::Ptr fmsg = factory.createForward();
  fmsg->to()->fromUnicodeString( KPIMUtils::decodeMailtoUrl( mUrl ).toLower(), "utf-8" ); //TODO check the utf-8
  bool lastEncrypt = false;
  bool lastSign = false;
  KMail::Util::lastEncryptAndSignState(lastEncrypt, lastSign, msg);

  KMail::Composer * win = KMail::makeComposer( fmsg, lastSign, lastEncrypt, KMail::Composer::Forward );
  win->show();

  return OK;
}


KMAddBookmarksCommand::KMAddBookmarksCommand( const KUrl &url, QWidget *parent )
  : KMCommand( parent ), mUrl( url )
{
}

KMCommand::Result KMAddBookmarksCommand::execute()
{
  const QString filename = KStandardDirs::locateLocal( "data", QString::fromLatin1("konqueror/bookmarks.xml") );
  KBookmarkManager *bookManager = KBookmarkManager::managerForFile( filename, "konqueror" );
  KBookmarkGroup group = bookManager->root();
  group.addBookmark( mUrl.path(), KUrl( mUrl ) );
  if( bookManager->save() ) {
    bookManager->emitChanged( group );
  }

  return OK;
}

KMUrlSaveCommand::KMUrlSaveCommand( const KUrl &url, QWidget *parent )
  : KMCommand( parent ), mUrl( url )
{
}

KMCommand::Result KMUrlSaveCommand::execute()
{
  if ( mUrl.isEmpty() )
    return OK;
  const KUrl saveUrl = KFileDialog::getSaveUrl(mUrl.fileName(), QString(),
                                         parentWidget() );
  if ( saveUrl.isEmpty() )
    return Canceled;
  if ( KIO::NetAccess::exists( saveUrl, KIO::NetAccess::DestinationSide, parentWidget() ) )
  {
    if (KMessageBox::warningContinueCancel(0,
        i18nc("@info", "File <filename>%1</filename> exists.<nl/>Do you want to replace it?",
         saveUrl.pathOrUrl()), i18n("Save to File"), KGuiItem(i18n("&Replace")))
        != KMessageBox::Continue)
      return Canceled;
  }
  KIO::Job *job = KIO::file_copy(mUrl, saveUrl, -1, KIO::Overwrite);
  connect(job, SIGNAL(result(KJob*)), SLOT(slotUrlSaveResult(KJob*)));
  setEmitsCompletedItself( true );
  return OK;
}

void KMUrlSaveCommand::slotUrlSaveResult( KJob *job )
{
  if ( job->error() ) {
    showJobError(job);
    setResult( Failed );
    emit completed( this );
  }
  else {
    setResult( OK );
    emit completed( this );
  }
}

KMEditMessageCommand::KMEditMessageCommand( QWidget *parent, const KMime::Message::Ptr& msg )
  :KMCommand( parent ), mMessage( msg )
{
}

KMCommand::Result KMEditMessageCommand::execute()
{
  if ( !mMessage )
    return Failed;

  KMail::Composer *win = KMail::makeComposer();
  bool lastEncrypt = false;
  bool lastSign = false;
  KMail::Util::lastEncryptAndSignState(lastEncrypt, lastSign, mMessage);
  win->setMessage( mMessage, lastSign, lastEncrypt, false, false );
  win->show();
  win->setModified( true );
  return OK;
}


KMEditItemCommand::KMEditItemCommand( QWidget *parent, const Akonadi::Item&msg, bool deleteFromSource )
  :KMCommand( parent, msg )
  , mDeleteFromSource( deleteFromSource )
{
  fetchScope().fetchFullPayload( true );
  fetchScope().fetchAttribute<MailTransport::TransportAttribute>();
  fetchScope().fetchAttribute<MailTransport::SentBehaviourAttribute>();
  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMEditItemCommand::~KMEditItemCommand()
{
}


KMCommand::Result KMEditItemCommand::execute()
{
  Akonadi::Item item = retrievedMessage();
  if (!item.isValid() || !item.parentCollection().isValid() ) {
    return Failed;
  }
  KMime::Message::Ptr msg = MessageCore::Util::message( item );
  if ( !msg ) {
    return Failed;
  }

  if ( mDeleteFromSource ) {
    setDeletesItself( true );
    Akonadi::ItemDeleteJob *job = new Akonadi::ItemDeleteJob( item );
    connect( job, SIGNAL(result(KJob*)), this, SLOT(slotDeleteItem(KJob*)) );
  }
  KMail::Composer *win = KMail::makeComposer();
  bool lastEncrypt = false;
  bool lastSign = false;
  KMail::Util::lastEncryptAndSignState(lastEncrypt, lastSign, msg);
  win->setMessage( msg, lastSign, lastEncrypt, false, true );

  win->setFolder( item.parentCollection() );

  const MailTransport::TransportAttribute *transportAttribute = item.attribute<MailTransport::TransportAttribute>();
  if ( transportAttribute ) {
    win->setCurrentTransport( transportAttribute->transportId() );
  } else {
    int transportId = msg->headerByType( "X-KMail-Transport"  ) ? msg->headerByType( "X-KMail-Transport" )->asUnicodeString().toInt() : -1;
    if(transportId!=-1) {
      win->setCurrentTransport( transportId );
    }
  }


  if(msg->headerByType( "Reply-To" )) {
    const QString replyTo = msg->headerByType( "Reply-To" )->asUnicodeString();
    win->setCurrentReplyTo(replyTo);
  }

  const MailTransport::SentBehaviourAttribute *sentAttribute = item.attribute<MailTransport::SentBehaviourAttribute>();
  if ( sentAttribute && ( sentAttribute->sentBehaviour() == MailTransport::SentBehaviourAttribute::MoveToCollection ) )
    win->setFcc( QString::number( sentAttribute->moveToCollection().id() ) );
  win->show();
  if ( mDeleteFromSource )
    win->setModified( true );

  return OK;
}

void KMEditItemCommand::slotDeleteItem( KJob *job )
{
  if ( job->error() ) {
    showJobError(job);
    setResult( Failed );
    emit completed( this );
  }
  else {
    setResult( OK );
    emit completed( this );
  }
  deleteLater( );
}

KMUseTemplateCommand::KMUseTemplateCommand( QWidget *parent, const Akonadi::Item  &msg )
  :KMCommand( parent, msg )
{
  fetchScope().fetchFullPayload( true );
  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMCommand::Result KMUseTemplateCommand::execute()
{
  Akonadi::Item item = retrievedMessage();
  if ( !item.isValid()
       || !item.parentCollection().isValid() ||
       !CommonKernel->folderIsTemplates( item.parentCollection() )
       ) {
    return Failed;
  }
  KMime::Message::Ptr msg = MessageCore::Util::message( item );
  if ( !msg )
    return Failed;

  KMime::Message::Ptr newMsg(new KMime::Message);
  newMsg->setContent( msg->encodedContent() );
  newMsg->parse();
  // these fields need to be regenerated for the new message
  newMsg->removeHeader("Date");
  newMsg->removeHeader("Message-ID");

  KMail::Composer *win = KMail::makeComposer();

  win->setMessage( newMsg, false, false, false, true );
  win->show();
  return OK;
}

KMSaveMsgCommand::KMSaveMsgCommand( QWidget *parent, const QList<Akonadi::Item> &msgList )
  : KMCommand( parent, msgList )
{
  if ( msgList.empty() )
    return;

  fetchScope().fetchFullPayload( true ); // ### unless we call the corresponding KMCommand ctor, this has no effect
}

KMCommand::Result KMSaveMsgCommand::execute()
{
  if ( !MessageViewer::Util::saveMessageInMbox( retrievedMsgs(), parentWidget()) )
    return Failed;
  return OK;
}

//-----------------------------------------------------------------------------

KMOpenMsgCommand::KMOpenMsgCommand( QWidget *parent, const KUrl & url,
                                    const QString & encoding, KMMainWidget *main )
  : KMCommand( parent ),
    mUrl( url ),
    mEncoding( encoding ),
    mMainWidget( main )
{
}

KMCommand::Result KMOpenMsgCommand::execute()
{
  if ( mUrl.isEmpty() ) {
    mUrl = KFileDialog::getOpenUrl( KUrl( "kfiledialog:///OpenMessage" ),
                                    "message/rfc822 application/mbox",
                                    parentWidget(), i18n("Open Message") );
  }
  if ( mUrl.isEmpty() ) {
    return Canceled;
  }

  if(mMainWidget) {
    mMainWidget->addRecentFile(mUrl);
  }

  setDeletesItself( true );
  mJob = KIO::get( mUrl, KIO::NoReload, KIO::HideProgressInfo );
  connect( mJob, SIGNAL(data(KIO::Job*,QByteArray)),
           this, SLOT(slotDataArrived(KIO::Job*,QByteArray)) );
  connect( mJob, SIGNAL(result(KJob*)),
           SLOT(slotResult(KJob*)) );
  setEmitsCompletedItself( true );
  return OK;
}

void KMOpenMsgCommand::slotDataArrived( KIO::Job *, const QByteArray & data )
{
  if ( data.isEmpty() )
    return;

  mMsgString.append( data.data() );
}

void KMOpenMsgCommand::slotResult( KJob *job )
{
  if ( job->error() ) {
    // handle errors
    showJobError(job);
    setResult( Failed );
    emit completed( this );
  }
  else {
    int startOfMessage = 0;
    if ( mMsgString.startsWith( QLatin1String( "From " ) ) ) {
      startOfMessage = mMsgString.indexOf( '\n' );
      if ( startOfMessage == -1 ) {
        KMessageBox::sorry( parentWidget(),
                            i18n( "The file does not contain a message." ) );
        setResult( Failed );
        emit completed( this );
        // Emulate closing of a secondary window so that KMail exits in case it
        // was started with the --view command line option. Otherwise an
        // invisible KMail would keep running.
        SecondaryWindow *win = new SecondaryWindow();
        win->close();
        win->deleteLater();
        deleteLater();
        return;
      }
      startOfMessage += 1; // the message starts after the '\n'
    }
    // check for multiple messages in the file
    bool multipleMessages = true;
    int endOfMessage = mMsgString.indexOf( "\nFrom " );
    if ( endOfMessage == -1 ) {
      endOfMessage = mMsgString.length();
      multipleMessages = false;
    }
    KMime::Message *msg = new KMime::Message;
    msg->setContent( KMime::CRLFtoLF( mMsgString.mid( startOfMessage,endOfMessage - startOfMessage ).toUtf8() ) );
    msg->parse();
    if ( !msg->hasContent() ) {
      KMessageBox::sorry( parentWidget(),
                          i18n( "The file does not contain a message." ) );
      delete msg; msg = 0;
      setResult( Failed );
      emit completed( this );
      // Emulate closing of a secondary window (see above).
      SecondaryWindow *win = new SecondaryWindow();
      win->close();
      win->deleteLater();
      deleteLater();
      return;
    }
    KMReaderMainWin *win = new KMReaderMainWin();
    KMime::Message::Ptr mMsg( msg );
    win->showMessage( mEncoding, mMsg );
    win->show();
    if ( multipleMessages )
      KMessageBox::information( win,
                                i18n( "The file contains multiple messages. "
                                      "Only the first message is shown." ) );
    setResult( OK );
    emit completed( this );
  }
  deleteLater();
}

//-----------------------------------------------------------------------------
KMReplyCommand::KMReplyCommand( QWidget *parent, const Akonadi::Item &msg, MessageComposer::ReplyStrategy replyStrategy,
                                            const QString &selection, bool noquote, const QString& templateName )
  : KMCommand( parent, msg ),
    mSelection( selection ),
    mTemplate( templateName ),
    m_replyStrategy( replyStrategy ),
    mNoQuote(noquote)

{
  if ( !noquote )
    fetchScope().fetchFullPayload( true );

  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMCommand::Result KMReplyCommand::execute()
{
#ifndef QT_NO_CURSOR
  MessageViewer::KCursorSaver busy( MessageViewer::KBusyPtr::busy() );
#endif
  Akonadi::Item item = retrievedMessage();
  KMime::Message::Ptr msg = MessageCore::Util::message( item );
  if ( !msg )
    return Failed;

  MessageFactory factory( msg, item.id(), MailCommon::Util::updatedCollection(item.parentCollection()) );
  factory.setIdentityManager( KMKernel::self()->identityManager() );
  factory.setFolderIdentity( MailCommon::Util::folderIdentity( item ) );
  factory.setMailingListAddresses( KMail::Util::mailingListsFromMessage( item ) );
  factory.putRepliesInSameFolder( KMail::Util::putRepliesInSameFolder( item ) );
  factory.setReplyStrategy( m_replyStrategy );
  factory.setSelection( mSelection );
  if ( !mTemplate.isEmpty() )
    factory.setTemplate( mTemplate );
  if(mNoQuote) {
    factory.setQuote(false);
  }
  bool lastEncrypt = false;
  bool lastSign = false;
  KMail::Util::lastEncryptAndSignState(lastEncrypt, lastSign, msg);

  MessageFactory::MessageReply reply = factory.createReply();
  KMail::Composer * win = KMail::makeComposer( KMime::Message::Ptr( reply.msg ), lastSign, lastEncrypt, replyContext( reply ), 0,
                                               mSelection,mTemplate );
  win->setReplyFocus();
  win->show();

  return OK;
}


KMForwardCommand::KMForwardCommand( QWidget *parent,
  const QList<Akonadi::Item> &msgList, uint identity,const QString& templateName )
  : KMCommand( parent, msgList ),
    mIdentity( identity ),
    mTemplate( templateName )
{
  fetchScope().fetchFullPayload( true );
  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMForwardCommand::KMForwardCommand( QWidget *parent, const Akonadi::Item &msg,
                                    uint identity, const QString& templateName )
  : KMCommand( parent, msg ),
    mIdentity( identity ),
    mTemplate( templateName )
{
  fetchScope().fetchFullPayload( true );
  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMCommand::Result KMForwardCommand::createComposer(const Akonadi::Item& item)
{
  KMime::Message::Ptr msg = MessageCore::Util::message( item );
  if ( !msg )
    return Failed;
#ifndef QT_NO_CURSOR
  MessageViewer::KCursorSaver busy( MessageViewer::KBusyPtr::busy() );
#endif
  MessageFactory factory( msg, item.id(), MailCommon::Util::updatedCollection(item.parentCollection()) );
  factory.setIdentityManager( KMKernel::self()->identityManager() );
  factory.setFolderIdentity( MailCommon::Util::folderIdentity( item ) );
  if ( !mTemplate.isEmpty() )
    factory.setTemplate( mTemplate );
  KMime::Message::Ptr fwdMsg = factory.createForward();

  uint id = msg->headerByType( "X-KMail-Identity" ) ?  msg->headerByType("X-KMail-Identity")->asUnicodeString().trimmed().toUInt() : 0;
  kDebug() << "mail" << msg->encodedContent();
  bool lastEncrypt = false;
  bool lastSign = false;
  KMail::Util::lastEncryptAndSignState(lastEncrypt, lastSign, msg);

  if ( id == 0 )
    id = mIdentity;
  {
    KMail::Composer * win = KMail::makeComposer( fwdMsg, lastSign, lastEncrypt, KMail::Composer::Forward, id,QString(), mTemplate );
    win->show();
  }
  return OK;
}

KMCommand::Result KMForwardCommand::execute()
{
  QList<Akonadi::Item> msgList = retrievedMsgs();

  if (msgList.count() >= 2) {
    // ask if they want a mime digest forward

    int answer = KMessageBox::questionYesNoCancel(
                   parentWidget(),
                   i18n("Do you want to forward the selected messages as "
                        "attachments in one message (as a MIME digest) or as "
                        "individual messages?"), QString(),
                   KGuiItem(i18n("Send As Digest")),
                   KGuiItem(i18n("Send Individually")) );

    if ( answer == KMessageBox::Yes ) {
      Akonadi::Item firstItem( msgList.first() );
      MessageFactory factory( KMime::Message::Ptr( new KMime::Message ), firstItem.id(), MailCommon::Util::updatedCollection(firstItem.parentCollection()) );
      factory.setIdentityManager( KMKernel::self()->identityManager() );
      factory.setFolderIdentity( MailCommon::Util::folderIdentity( firstItem ) );

      QPair< KMime::Message::Ptr, KMime::Content* > fwdMsg = factory.createForwardDigestMIME(msgList );
      KMail::Composer * win = KMail::makeComposer( fwdMsg.first, false, false, KMail::Composer::Forward, mIdentity );
      win->addAttach( fwdMsg.second );
      win->show();
      return OK;
    } else if ( answer == KMessageBox::No ) {// NO MIME DIGEST, Multiple forward
      QList<Akonadi::Item>::const_iterator it;
      QList<Akonadi::Item>::const_iterator end( msgList.constEnd() );

      for ( it = msgList.constBegin(); it != end; ++it ) {
        if ( createComposer( *it ) == Failed )
          return Failed;
      }
      return OK;
    } else {
      // user cancelled
      return OK;
    }
  }

  // forward a single message at most.
  Akonadi::Item item = msgList.first();
  if ( createComposer( item ) == Failed )
    return Failed;
  return OK;
}


KMForwardAttachedCommand::KMForwardAttachedCommand( QWidget *parent,
           const QList<Akonadi::Item> &msgList, uint identity, KMail::Composer *win )
  : KMCommand( parent, msgList ), mIdentity( identity ),
    mWin( QPointer<KMail::Composer>( win ))
{
  fetchScope().fetchFullPayload( true );
  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMForwardAttachedCommand::KMForwardAttachedCommand( QWidget *parent,
                                                    const Akonadi::Item & msg, uint identity, KMail::Composer *win )
  : KMCommand( parent, msg ), mIdentity( identity ),
    mWin( QPointer< KMail::Composer >( win ))
{
  fetchScope().fetchFullPayload( true );
  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMCommand::Result KMForwardAttachedCommand::execute()
{
  QList<Akonadi::Item> msgList = retrievedMsgs();
  Akonadi::Item firstItem( msgList.first() );
  MessageFactory factory( KMime::Message::Ptr( new KMime::Message ), firstItem.id(), MailCommon::Util::updatedCollection(firstItem.parentCollection()) );
  factory.setIdentityManager( KMKernel::self()->identityManager() );
  factory.setFolderIdentity( MailCommon::Util::folderIdentity( firstItem ) );

  QPair< KMime::Message::Ptr, QList< KMime::Content* > > fwdMsg = factory.createAttachedForward( msgList );
  if ( !mWin ) {
    mWin = KMail::makeComposer( fwdMsg.first, false, false, KMail::Composer::Forward, mIdentity );
  }
  foreach( KMime::Content* attach, fwdMsg.second ) {
    mWin->addAttach( attach );
  }
  mWin->show();
  return OK;
}

KMRedirectCommand::KMRedirectCommand( QWidget *parent,
                                      const QList<Akonadi::Item> &msgList )
  : KMCommand( parent, msgList )
{
  fetchScope().fetchFullPayload( true );
  fetchScope().fetchAttribute<MailTransport::SentBehaviourAttribute>();
  fetchScope().fetchAttribute<MailTransport::TransportAttribute>();

  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMRedirectCommand::KMRedirectCommand( QWidget *parent,
                                      const Akonadi::Item &msg )
  : KMCommand( parent, msg )
{
  fetchScope().fetchFullPayload( true );
  fetchScope().fetchAttribute<MailTransport::SentBehaviourAttribute>();
  fetchScope().fetchAttribute<MailTransport::TransportAttribute>();

  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMCommand::Result KMRedirectCommand::execute()
{
  const MailCommon::RedirectDialog::SendMode sendMode = MessageComposer::MessageComposerSettings::self()->sendImmediate()
                                                          ? MailCommon::RedirectDialog::SendNow
                                                          : MailCommon::RedirectDialog::SendLater;

  MessageViewer::AutoQPointer<MailCommon::RedirectDialog> dlg( new MailCommon::RedirectDialog( sendMode, parentWidget() ) );
  dlg->setObjectName( "redirect" );
  if ( dlg->exec() == QDialog::Rejected || !dlg ) {
    return Failed;
  }
  if ( !TransportManager::self()->showTransportCreationDialog( parentWidget(), TransportManager::IfNoTransportExists ) )
    return Failed;

  const MessageSender::SendMethod method = (dlg->sendMode() == MailCommon::RedirectDialog::SendNow)
                                             ? MessageSender::SendImmediate
                                             : MessageSender::SendLater;

  const int identity = dlg->identity();
  int transportId = dlg->transportId();
  const QString to = dlg->to();
  foreach( const Akonadi::Item &item, retrievedMsgs() ) {
    const KMime::Message::Ptr msg = MessageCore::Util::message( item );
    if ( !msg )
      return Failed;

    MessageFactory factory( msg, item.id(), MailCommon::Util::updatedCollection(item.parentCollection()) );
    factory.setIdentityManager( KMKernel::self()->identityManager() );
    factory.setFolderIdentity( MailCommon::Util::folderIdentity( item ) );

    if(transportId == -1) {
      const MailTransport::TransportAttribute *transportAttribute = item.attribute<MailTransport::TransportAttribute>();
      if ( transportAttribute ) {
        transportId = transportAttribute->transportId();
        const MailTransport::Transport *transport = MailTransport::TransportManager::self()->transportById( transportId );
        if ( !transport ) {
          transportId = -1;
        }
      }
    }

    const MailTransport::SentBehaviourAttribute *sentAttribute = item.attribute<MailTransport::SentBehaviourAttribute>();
    QString fcc;
    if ( sentAttribute && ( sentAttribute->sentBehaviour() == MailTransport::SentBehaviourAttribute::MoveToCollection ) )
      fcc =  QString::number( sentAttribute->moveToCollection().id() );

    const KMime::Message::Ptr newMsg = factory.createRedirect( to, transportId, fcc, identity );
    if ( !newMsg )
      return Failed;

    MessageStatus status;
    status.setStatusFromFlags( item.flags() );
    if ( !status.isRead() )
      FilterAction::sendMDN( item, KMime::MDN::Dispatched );


    if ( !kmkernel->msgSender()->send( newMsg, method ) ) {
      kDebug() << "KMRedirectCommand: could not redirect message (sending failed)";
      return Failed; // error: couldn't send
    }
  }

  return OK;
}


KMPrintCommand::KMPrintCommand( QWidget *parent, const Akonadi::Item &msg,
                                MessageViewer::HeaderStyle *headerStyle,
                                const MessageViewer::HeaderStrategy *headerStrategy,
                                bool htmlOverride, bool htmlLoadExtOverride,
                                bool useFixedFont, const QString & encoding )
  : KMCommand( parent, msg ),
    mHeaderStyle( headerStyle ), mHeaderStrategy( headerStrategy ),
    mAttachmentStrategy( 0 ),
    mEncoding( encoding ),
    mHtmlOverride( htmlOverride ),
    mHtmlLoadExtOverride( htmlLoadExtOverride ),
    mUseFixedFont( useFixedFont ),
    mPrintPreview(false)
{
  fetchScope().fetchFullPayload( true );
  if ( MessageCore::GlobalSettings::useDefaultFonts() )
    mOverrideFont = KGlobalSettings::generalFont();
  else {
    mOverrideFont = MessageCore::GlobalSettings::self()->printFont();
  }
}


void KMPrintCommand::setOverrideFont( const QFont& font )
{
  mOverrideFont = font;
}

void KMPrintCommand::setAttachmentStrategy( const MessageViewer::AttachmentStrategy *strategy )
{
  mAttachmentStrategy = strategy;
}

void KMPrintCommand::setPrintPreview( bool preview )
{
  mPrintPreview = preview;
}

KMCommand::Result KMPrintCommand::execute()
{
  // the window will be deleted after printout is performed, in KMReaderWin::slotPrintMsg()
  KMReaderWin *printerWin = new KMReaderWin( kmkernel->mainWin(), 0, 0 );
  printerWin->setPrinting( true );
  printerWin->readConfig();
  if ( mHeaderStyle != 0 && mHeaderStrategy != 0 )
    printerWin->setHeaderStyleAndStrategy( mHeaderStyle, mHeaderStrategy );
  printerWin->setHtmlOverride( mHtmlOverride );
  printerWin->setHtmlLoadExtOverride( mHtmlLoadExtOverride );
  printerWin->setUseFixedFont( mUseFixedFont );
  printerWin->setOverrideEncoding( mEncoding );
  printerWin->cssHelper()->setPrintFont( mOverrideFont );
  printerWin->setDecryptMessageOverwrite( true );
  if ( mAttachmentStrategy != 0 )
    printerWin->setAttachmentStrategy( mAttachmentStrategy );
  if(mPrintPreview)
    printerWin->viewer()->printPreviewMessage( retrievedMessage() );
  else
    printerWin->viewer()->printMessage(retrievedMessage());
  return OK;
}


KMSetStatusCommand::KMSetStatusCommand( const MessageStatus& status,
  const Akonadi::Item::List &items, bool invert )
  : KMCommand( 0, items ), mStatus( status ), mInvertMark( invert )
{
  setDeletesItself(true);
}

KMCommand::Result KMSetStatusCommand::execute()
{
  bool parentStatus = false;
  // Toggle actions on threads toggle the whole thread
  // depending on the state of the parent.
  if ( mInvertMark ) {
    const Akonadi::Item first = retrievedMsgs().first();
    MessageStatus pStatus;
    pStatus.setStatusFromFlags( first.flags() );
    if ( pStatus & mStatus )
      parentStatus = true;
    else
      parentStatus = false;
  }

  Akonadi::Item::List itemsToModify;
  foreach( const Akonadi::Item &it, retrievedMsgs() ) {
    if ( mInvertMark ) {
      //kDebug()<<" item ::"<<tmpItem;
      if ( it.isValid() ) {
        bool myStatus;
        MessageStatus itemStatus;
        itemStatus.setStatusFromFlags( it.flags() );
        if ( itemStatus & mStatus )
          myStatus = true;
        else
          myStatus = false;
        if ( myStatus != parentStatus )
          continue;
      }
    }
    Akonadi::Item item( it );
    const Akonadi::Item::Flag flag = *(mStatus.statusFlags().begin());
    if ( mInvertMark ) {
      if ( item.hasFlag( flag ) ) {
        item.clearFlag( flag );
        itemsToModify.push_back( item );
      } else {
        item.setFlag( flag );
        itemsToModify.push_back( item );
      }
    } else {
      if ( !item.hasFlag( flag ) ) {
        item.setFlag( flag );
        itemsToModify.push_back( item );
      }
    }
  }

  if ( itemsToModify.isEmpty() ) {
    slotModifyItemDone( 0 ); // pretend we did something
  } else {
    Akonadi::ItemModifyJob *modifyJob = new Akonadi::ItemModifyJob( itemsToModify, this );
    modifyJob->disableRevisionCheck();
    modifyJob->setIgnorePayload( true );
    connect( modifyJob, SIGNAL(result(KJob*)), this, SLOT(slotModifyItemDone(KJob*)) );
  }
  return OK;
}

void KMSetStatusCommand::slotModifyItemDone( KJob * job )
{
  if ( job && job->error() ) {
    kWarning() << " Error trying to set item status:" << job->errorText();
  }
  deleteLater();
}

KMSetTagCommand::KMSetTagCommand( const QList<QString> &tagLabel, const QList<Akonadi::Item> &item,
    SetTagMode mode )
  : mTagLabel( tagLabel )
  , mItem( item )
  , mMode( mode )
{
}

KMCommand::Result KMSetTagCommand::execute()
{
  QStringList tagSelectedlst;
  Q_FOREACH( const Akonadi::Item& item, mItem ) {
    Nepomuk2::Resource n_resource( item.url() );
    QList<Nepomuk2::Tag> n_tag_list;
    if ( mMode != CleanExistingAndAddNew ){
      n_tag_list = n_resource.tags();
    }

    Q_FOREACH( const QString &tagLabel, mTagLabel ) {
      const Nepomuk2::Tag n_tag( tagLabel );
      const QString tagUri(n_tag.uri().toString());
      if ( mMode == CleanExistingAndAddNew ) {
        n_resource.addTag( n_tag );
        if(!tagSelectedlst.contains(tagUri))
          tagSelectedlst<<tagUri;
      } else {
        const int tagPosition = n_tag_list.indexOf( tagLabel );
        if ( tagPosition == -1 ) {
          n_resource.addTag( n_tag );
          if(!tagSelectedlst.contains(tagUri))
            tagSelectedlst<<tagUri;
        } else if ( mMode == Toggle ) {
          const int numberOfTag( n_tag_list.count() );
          for (int i = 0; i < numberOfTag; ++i ) {
            if ( n_tag_list[i].uri() == tagLabel ) {
              n_tag_list.removeAt( i );
              break;
            }
          }
          n_resource.setTags( n_tag_list );
        }
      }
    }
  }

  if(!tagSelectedlst.isEmpty()) {
    KConfigGroup tag( KMKernel::self()->config(), "MessageListView" );
    const QString oldTagList = tag.readEntry("TagSelected");
    QStringList lst = oldTagList.split(QLatin1String(","));
    Q_FOREACH(const QString& str,tagSelectedlst ) {
      if(!lst.contains(str)) {
          lst.append(str);
      }
    }
    tag.writeEntry("TagSelected",lst);
    KMKernel::self()->updatePaneTagComboBox();
  }

  return OK;
}

KMFilterActionCommand::KMFilterActionCommand( QWidget *parent,
                                              const QVector<qlonglong> &msgListId,
                                              const QString &filterId)
    : KMCommand( parent ), mMsgListId(msgListId), mFilterId( filterId  )
{
}

KMCommand::Result KMFilterActionCommand::execute()
{
#ifndef QT_NO_CURSOR
  MessageViewer::KCursorSaver busy( MessageViewer::KBusyPtr::busy() );
#endif
  int msgCount = 0;
  const int msgCountToFilter = mMsgListId.count();
  ProgressItem* progressItem =
     ProgressManager::createProgressItem (
         "filter"+ProgressManager::getUniqueID(),
         i18n( "Filtering messages" ) );
  progressItem->setTotalItems( msgCountToFilter );

  foreach ( const qlonglong &id, mMsgListId ) {
    int diff = msgCountToFilter - ++msgCount;
    if ( diff < 10 || !( msgCount % 10 ) || msgCount <= 10 ) {
      progressItem->updateProgress();
      const QString statusMsg = i18n( "Filtering message %1 of %2",
                                msgCount, msgCountToFilter );
      KPIM::BroadcastStatus::instance()->setStatusMsg( statusMsg );
      qApp->processEvents( QEventLoop::ExcludeUserInputEvents, 50 );
    }


    MailCommon::FilterManager::instance()->filter( Akonadi::Item(id), mFilterId, QString() );
    progressItem->incCompletedItems();
  }

  progressItem->setComplete();
  progressItem = 0;
  return OK;
}


KMMetaFilterActionCommand::KMMetaFilterActionCommand( const QString &filterId,
                                                      KMMainWidget *main )
    : QObject( main ),
      mFilterId( filterId ), mMainWidget( main )
{
}

void KMMetaFilterActionCommand::start()
{
  KMCommand *filterCommand = new KMFilterActionCommand(
      mMainWidget, mMainWidget->messageListPane()->selectionAsMessageItemListId() , mFilterId);
  filterCommand->start();
}


KMMailingListFilterCommand::KMMailingListFilterCommand( QWidget *parent,
                                                        const Akonadi::Item &msg )
  : KMCommand( parent, msg )
{
}

KMCommand::Result KMMailingListFilterCommand::execute()
{
  QByteArray name;
  QString value;
  Akonadi::Item item = retrievedMessage();
  KMime::Message::Ptr msg = MessageCore::Util::message( item );
  if ( !msg )
    return Failed;
  if ( !MailingList::name( msg, name, value ).isEmpty() ) {
    FilterIf->openFilterDialog( false );
    FilterIf->createFilter( name, value );
    return OK;
  } else {
    return Failed;
  }
}

KMCopyCommand::KMCopyCommand( const Akonadi::Collection& destFolder,
                              const QList<Akonadi::Item> &msgList)
  :KMCommand( 0, msgList ), mDestFolder( destFolder )
{
}

KMCopyCommand::KMCopyCommand( const Akonadi::Collection& destFolder, const Akonadi::Item& msg)
  :KMCommand( 0,msg ), mDestFolder( destFolder )
{
}

KMCommand::Result KMCopyCommand::execute()
{
  setDeletesItself( true );

  QList<Akonadi::Item> listItem = retrievedMsgs();
  Akonadi::ItemCopyJob *job = new Akonadi::ItemCopyJob( listItem, Akonadi::Collection(mDestFolder.id()),this );
  connect( job, SIGNAL(result(KJob*)), this, SLOT(slotCopyResult(KJob*)) );

  return OK;
}

void KMCopyCommand::slotCopyResult( KJob * job )
{
  if ( job->error() ) {
    // handle errors
    showJobError(job);
    setResult( Failed );
  }
  deleteLater();
}

KMMoveCommand::KMMoveCommand( const Akonadi::Collection& destFolder,
                              const QList<Akonadi::Item> &msgList,
                              MessageList::Core::MessageItemSetReference ref)
    : KMCommand( 0, msgList ), mDestFolder( destFolder ), mProgressItem( 0 ), mRef( ref )
{
  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMMoveCommand::KMMoveCommand( const Akonadi::Collection& destFolder,
                              const Akonadi::Item& msg ,
                              MessageList::Core::MessageItemSetReference ref)
  : KMCommand( 0, msg ), mDestFolder( destFolder ), mProgressItem( 0 ), mRef( ref )
{
  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

void KMMoveCommand::slotMoveResult( KJob * job )
{
  if ( job->error() ) {
    // handle errors
    showJobError(job);
    completeMove( Failed );
  }
  else
    completeMove( OK );
}

KMCommand::Result KMMoveCommand::execute()
{
#ifndef QT_NO_CURSOR
  MessageViewer::KCursorSaver busy( MessageViewer::KBusyPtr::busy() );
#endif
  setEmitsCompletedItself( true );
  setDeletesItself( true );
  if ( mDestFolder.isValid() ) {
    Akonadi::ItemMoveJob *job = new Akonadi::ItemMoveJob( retrievedMsgs(), mDestFolder, this );
    connect( job, SIGNAL(result(KJob*)), this, SLOT(slotMoveResult(KJob*)) );

    // group by source folder for undo
    Akonadi::Item::List items = retrievedMsgs();
    std::sort( items.begin(), items.end(), boost::bind( &Akonadi::Item::storageCollectionId, _1 ) <
                                           boost::bind( &Akonadi::Item::storageCollectionId, _2 ) );
    Akonadi::Collection parent;
    int undoId = -1;
    foreach ( const Akonadi::Item &item, items ) {
      if ( item.storageCollectionId() <= 0 )
        continue;
      if ( parent.id() != item.storageCollectionId() ) {
        parent = Akonadi::Collection( item.storageCollectionId() );
        undoId = kmkernel->undoStack()->newUndoAction( parent, mDestFolder );
      }
      kmkernel->undoStack()->addMsgToAction( undoId, item );
    }
  } else {
    const QList<Akonadi::Item> retrievedList = retrievedMsgs();
    if ( !retrievedList.isEmpty() ) {
      Akonadi::ItemDeleteJob *job = new Akonadi::ItemDeleteJob( retrievedList, this );
      connect( job, SIGNAL(result(KJob*)), this, SLOT(slotMoveResult(KJob*)) );
    }
  }

  // TODO set SSL state according to source and destfolder connection?
  Q_ASSERT( !mProgressItem );
  mProgressItem =
    ProgressManager::createProgressItem ("move"+ProgressManager::getUniqueID(),
         mDestFolder.isValid() ? i18n( "Moving messages" ) : i18n( "Deleting messages" ) );
  mProgressItem->setUsesBusyIndicator( true );
  connect( mProgressItem, SIGNAL(progressItemCanceled(KPIM::ProgressItem*)),
           this, SLOT(slotMoveCanceled()) );
  return OK;
}



void KMMoveCommand::completeMove( Result result )
{
  if ( mProgressItem ) {
    mProgressItem->setComplete();
    mProgressItem = 0;
  }
  setResult( result );
  emit moveDone(this);
  emit completed( this );
  deleteLater();
}

void KMMoveCommand::slotMoveCanceled()
{
  completeMove( Canceled );
}

// srcFolder doesn't make much sense for searchFolders
KMTrashMsgCommand::KMTrashMsgCommand( const Akonadi::Collection& srcFolder,
  const QList<Akonadi::Item> &msgList,MessageList::Core::MessageItemSetReference ref )
:KMMoveCommand( findTrashFolder( srcFolder ), msgList, ref)
{
}

KMTrashMsgCommand::KMTrashMsgCommand( const Akonadi::Collection& srcFolder, const Akonadi::Item & msg,MessageList::Core::MessageItemSetReference ref )
:KMMoveCommand( findTrashFolder( srcFolder ), msg, ref)
{
}


Akonadi::Collection KMTrashMsgCommand::findTrashFolder( const Akonadi::Collection& folder )
{
  Akonadi::Collection col = CommonKernel->trashCollectionFromResource( folder );
  if ( !col.isValid() ) {
    col = CommonKernel->trashCollectionFolder();
  }
  if ( folder != col )
    return col;
  return Akonadi::Collection();
}

KMSaveAttachmentsCommand::KMSaveAttachmentsCommand( QWidget *parent, const Akonadi::Item& msg )
  : KMCommand( parent, msg )
{
  fetchScope().fetchFullPayload( true );
}

KMSaveAttachmentsCommand::KMSaveAttachmentsCommand( QWidget *parent, const QList<Akonadi::Item>& msgs )
  : KMCommand( parent, msgs )
{
  fetchScope().fetchFullPayload( true );
}

KMCommand::Result KMSaveAttachmentsCommand::execute()
{
  QList<KMime::Content*> contentsToSave;
  foreach( const Akonadi::Item &item, retrievedMsgs() ) {
    if ( item.hasPayload<KMime::Message::Ptr>() ) {
      contentsToSave += MessageViewer::Util::extractAttachments( item.payload<KMime::Message::Ptr>().get() );
    } else {
      kWarning() << "Retrieved item has no payload? Ignoring for saving the attachments";
    }
  }
  if ( MessageViewer::Util::saveAttachments( contentsToSave, parentWidget() ) )
    return OK;
  return Failed;
}

KMResendMessageCommand::KMResendMessageCommand( QWidget *parent,
                                                const Akonadi::Item &msg )
  :KMCommand( parent, msg )
{
  fetchScope().fetchFullPayload( true );
  fetchScope().setAncestorRetrieval( Akonadi::ItemFetchScope::Parent );
}

KMCommand::Result KMResendMessageCommand::execute()
{
  Akonadi::Item item = retrievedMessage();
  KMime::Message::Ptr msg = MessageCore::Util::message( item );
  if ( !msg )
    return Failed;

  MessageFactory factory( msg, item.id(), MailCommon::Util::updatedCollection(item.parentCollection()) );
  factory.setIdentityManager( KMKernel::self()->identityManager() );
  factory.setFolderIdentity( MailCommon::Util::folderIdentity( item ) );
  KMime::Message::Ptr newMsg = factory.createResend();
  newMsg->contentType()->setCharset( MessageViewer::NodeHelper::charset( msg.get() ) );

  KMail::Composer * win = KMail::makeComposer();
  if(msg->headerByType( "Reply-To" )) {
    const QString replyTo = msg->headerByType( "Reply-To" )->asUnicodeString();
    win->setCurrentReplyTo(replyTo);
  }
  bool lastEncrypt = false;
  bool lastSign = false;
  KMail::Util::lastEncryptAndSignState(lastEncrypt, lastSign, msg);
  win->setMessage( newMsg, lastSign, lastEncrypt, false, true );

  win->show();

  return OK;
}


#include "kmcommands.moc"
