/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: Music Player song scanner.

*

*/

#include <hbprogressdialog.h>

#include <hbnotificationdialog.h>

#include <hblabel.h>

#include <hbfontspec.h>

#include "mpsongscanner.h"

#include "mpmpxframeworkwrapper.h"

#include "mptrace.h"

/*!

    \class MpSongScanner

    \brief Music Player song scanner.

    Song scanner interfaces with MPX Harvesting Framework to harvest

    music files in the device.

*/

/*!

 \fn void scanEnd()

 This signal is emitted when scanning is ended.

 \sa scan()

*/

/*!

 Constructs the song scanner.

 */

MpSongScanner::MpSongScanner( MpMpxFrameworkWrapper *wrapper, QObject *parent )

    : QObject( parent ),

      mMpxWrapper(wrapper),

      mScanProgressNote(0),

      mScanning(false)

{

    TX_ENTRY

    connect( mMpxWrapper, SIGNAL(scanStarted()), this, SLOT(handleScanStarted()) );

    connect( mMpxWrapper, SIGNAL(scanEnded( int, int )), this, SLOT(handleScanEnded( int, int )) );

    connect( mMpxWrapper, SIGNAL(scanCountChanged(int)), this, SLOT(handleScanCountChanged(int)) );

    TX_EXIT

}

/*!

 Destructs the song scanner.

 */

MpSongScanner::~MpSongScanner()

{

    TX_LOG

}

/*!

 Initiates song scanning.

 */

void MpSongScanner::scan()

{

    if ( !mScanning ) {

        mScanning = true;

        mMpxWrapper->scan();

    }

}

/*!

 Returns true if scanning is ongoing.

 */

bool MpSongScanner::isScanning()

{

    return mScanning;

}

/*!

 Cancels ongoing song scanning, if any.

 \sa scan()

 */

void MpSongScanner::cancelScan()

{

    if ( mScanning ) {

        mScanning = false;

        mMpxWrapper->cancelScan();

    }

}

/*!

 Slot called upon notification from MPX Harvesting FW indicating start of

 scanning process.

 */

void MpSongScanner::handleScanStarted()

{

    if ( !mScanProgressNote ) {

        mScanProgressNote = new HbProgressDialog( HbProgressDialog::WaitDialog );

        connect( mScanProgressNote, SIGNAL( cancelled() ), this, SLOT( cancelScan() ) );

        connect( mScanProgressNote, SIGNAL( aboutToClose() ), this, SLOT( handleProgressNoteClosing() ) );

    }

    mScanProgressNote->setModal( true );

    HbLabel *title = new HbLabel( hbTrId( "txt_mus_title_refreshing" ) );

    title->setFontSpec(HbFontSpec(HbFontSpec::Primary));

    mScanProgressNote->setHeadingWidget( title );

    mScanProgressNote->setTextAlignment( Qt::AlignCenter );

    mScanProgressNote->setText( QString("") );

    mScanProgressNote->setAttribute( Qt::WA_DeleteOnClose );

    mScanProgressNote->show();

}

/*!

 Slot called upon notification from MPX Harvesting FW indicating end of

 scanning process.

 */

void MpSongScanner::handleScanEnded( int numItemsAdded, int error )

{

    QString added;

    HbNotificationDialog *finishedDialog = new HbNotificationDialog();

    finishedDialog->setModal(true);

    finishedDialog->setAttribute( Qt::WA_DeleteOnClose );

    added = hbTrId( "txt_mus_dpopinfo_ln_songs_added", numItemsAdded );

    finishedDialog->setText( added );

    if( error < 0) {

        if ( mScanProgressNote ) {     

            mScanProgressNote->cancel();

        }

        finishedDialog->setIcon( HbIcon( QString("qtg_small_fail") ) );

        finishedDialog->setTitle( hbTrId( "txt_mus_dpophead_refresh_cancelled" ) );

    }

    else if ( mScanning ) {

        if ( mScanProgressNote ) {     

            mScanProgressNote->cancel();

        }

        finishedDialog->setIcon( HbIcon( QString("qtg_large_ok") ) );

        finishedDialog->setTitle( hbTrId( "txt_mus_dpophead_refresh_complete" ) );

    }

    else {

        finishedDialog->setIcon( HbIcon( QString("qtg_small_fail") ) );

        finishedDialog->setTitle( hbTrId( "txt_mus_dpophead_refresh_cancelled" ) );

    }

    mScanning = false;

    finishedDialog->show();

}

/*!

 Slot called upon notification from MPX Harvesting FW indicating the number of

 songs scanned so far.

 */

void MpSongScanner::handleScanCountChanged(int count)

{

    QString added;

    added = hbTrId( "txt_mus_info_ln_songs_added" , count );

    if ( mScanProgressNote ) {

        mScanProgressNote->setText( added );

    }

}

/*!

 Slot to be called when disk event is received from MPX framework.

 */

void MpSongScanner::handleDiskEvent( MpxDiskEvents event )

{

    Q_UNUSED( event );

    if ( mScanning ) {

        if ( mScanProgressNote ) {

            mScanProgressNote->cancel();

        }

        mScanning = false;

        // AK - Should we show a dialog?

    }

    TX_EXIT

}

/*!

 Slot used to clear mScanProgressNote when dialog is closing.

 */

void MpSongScanner::handleProgressNoteClosing()

{

    mScanProgressNote = 0;

}