/*

* 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 details view.

*

*/

#include <QWebSettings>

#include <QGraphicsWidget>

#include <QGraphicsLayoutItem>

#include <QUrl>

#include <QDomElement>

#include <QList>

#include <QFile>

#include <QGraphicsLinearLayout>

#include <QSizeF>

#include <QDesktopServices>

#include <hbinstance.h>

#include <hbmainwindow.h>

#include <hbaction.h>

#include <hblabel.h>

#include <hbgroupbox.h>

#include <hbdocumentloader.h>

#include <hbwidget.h>

#include <hbpushbutton.h>

#include <hbpopup.h>

#include <hbdialog.h>

#include <hblistwidget.h>

#include <hblistwidgetitem.h>

#include <hblistviewitem.h>

#include <hbprogressbar.h>

#include "mpdetailsview.h"

#include "mpenginefactory.h"

#include "mpcommondefs.h"

#include "mpsongdata.h"

#include "mpsettingsmanager.h"

#include "mpquerymanager.h"

#include "mptrace.h"

const int KOneKiloByteInBytes = 1024;

const int KOneMegabyteInBytes = 1048576;        

const int KOneGigaByteInBytes = 134217728;        

/*!

 Constructor

 */

MpDetailsView::MpDetailsView()

    : mMpEngine( 0 ),

      mSongData( 0 ),

      mActivated( false ),

      mSoftKeyBack( 0 ),

      mSongText( 0 ),

      mAlbumText( 0 ),

      mArtistText( 0 ),

      mAlbumArt( 0 ),

      mSongDetailsGroupBox(0),

      mInspireMeGroupBox(0),

      mDocumentLoader( 0 ),

      mDetailList(0),

      mInspireList(0),

      mInspireMeProgressBar(0),

      mMpQueryManager( 0 ),

      mInspireMeQueryOngoing( false ),

      mInspireMeQueryRendered( false )

{

    TX_ENTRY

    bool widgetsOk = false;

    HbMainWindow *mainWindow = hbInstance->allMainWindows()[0];

    mDocumentLoader = new HbDocumentLoader();

    TX_LOG_ARGS("Document loader created")

    if(!mDocumentLoader) {

        TX_LOG_ARGS( "MpDetailsView() Error: HbDocumentLoader not constructed" );

        return;

    }

    TX_LOG_ARGS("Loading :/mpdetailsviewdocml/mpdetailsview.docml")

    mDocumentLoader->load( QString(":/mpdetailsviewdocml/mpdetailsview.docml"), &widgetsOk );

    if(!widgetsOk) {

        TX_LOG_ARGS( "MpDetailsView() Error: invalid mpdetailsview.docml" );

        return;

    }

    TX_LOG_ARGS("Loaded :/mpdetailsviewdocml/mpdetailsview.docml")

    QGraphicsWidget *widget = 0;

    widget = mDocumentLoader->findWidget( QString("content") );

    TX_LOG_ARGS( "MpDetailsView() mDocumentLoader->findWidget for <content>: " << (int)(widget) );

    setWidget(  qobject_cast<HbWidget *>(widget) );

    widget = mDocumentLoader->findWidget( QString("trackTitle") );

    mSongText = qobject_cast<HbLabel *>(widget);

    TX_LOG_ARGS("MpDetailsView() <trackTitle> widget found mSongText: " << (int)(mSongText) );

    widget = mDocumentLoader->findWidget( QString("artist") );

    mArtistText = qobject_cast<HbLabel *>(widget);

    TX_LOG_ARGS("MpDetailsView() <artist> widget found mArtistText: " << (int)(mArtistText) );

    widget = mDocumentLoader->findWidget( QString("albumName") );

    mAlbumText = qobject_cast<HbLabel *>(widget);

    TX_LOG_ARGS("MpDetailsView() <albumName> widget found mAlbumText: " << (int)(mAlbumText) );

    widget = mDocumentLoader->findWidget( QString("albumArt") );

    mAlbumArt = qobject_cast<HbLabel *>(widget);

    TX_LOG_ARGS("MpDetailsView() <albumArt> widget found mAlbumArt: " << (int)(mAlbumArt) );

    widget = mDocumentLoader->findWidget( QString("songDetails") );

    mSongDetailsGroupBox = qobject_cast<HbGroupBox *>(widget);

    TX_LOG_ARGS("MpDetailsView() <songDetails> widget found mSongDetailsGroupBox: " << (int)(mSongDetailsGroupBox) );

    widget = mDocumentLoader->findWidget( QString("songDetailsListWidget") );

    mDetailList = qobject_cast<HbListWidget *>(widget);

    TX_LOG_ARGS("MpDetailsView() <songDetailsListWidget> widget found mDetailList: " << (int)(mDetailList) );

    widget = mDocumentLoader->findWidget( QString("inspireMeGroupBox") );

    mInspireMeGroupBox = qobject_cast<HbGroupBox *>(widget);

    TX_LOG_ARGS("MpDetailsView() <inspireMeGroupBox> widget found mInspireMeGroupBox: " << (int)(mInspireMeGroupBox) );

    widget = mDocumentLoader->findWidget( QString("inspireListWidget") );

    mInspireList = qobject_cast<HbListWidget *>(widget);

    TX_LOG_ARGS("MpDetailsView() <inspireListWidget> widget found mInspireList: " << (int)(mInspireList) );

    widget = mDocumentLoader->findWidget( QString("inspireMeProgressBar") );

    mInspireMeProgressBar = qobject_cast<HbProgressBar *>(widget);

    TX_LOG_ARGS("MpDetailsView() <inspireMeProgressBar> widget found mInspireMeProgressBar: " << (int)(mInspireMeProgressBar) );

    // load section HideInspireMe if no ovi store suport

    bool loadingSectionOk = false;

    mDocumentLoader->load( QString(":/mpdetailsviewdocml/mpdetailsview.docml"), QString( "ShowInspireMe" ), &loadingSectionOk );    

    if( loadingSectionOk ) {

        TX_LOG_ARGS( "Loading ShowInspireMe section is successful." );

    }

    else {

        TX_LOG_ARGS( "Loading ShowInspireMe section fails." );

    }

    TX_EXIT

}

/*!

 Destructs the details view.

 */

MpDetailsView::~MpDetailsView()

{

    TX_ENTRY

    saveGroupBoxStates();

    delete mSoftKeyBack;

    delete mDocumentLoader;

    delete mMpQueryManager;

    TX_EXIT

}

/*!

 Initializes the details view. Allocates all resources needed by the view.

 */

void MpDetailsView::initializeView()

{

    TX_ENTRY

    mSoftKeyBack = new HbAction( Hb::BackNaviAction, this );

    mMpEngine = MpEngineFactory::sharedEngine();

    mSongData = mMpEngine->songData();

    mMpQueryManager = new MpQueryManager();

    connect( mSoftKeyBack, SIGNAL( triggered() ), this, SLOT( back() ) );

    connect( mSongData, SIGNAL( albumArtReady() ), this, SLOT( albumArtChanged() ) );

    connect( mSongData, SIGNAL( playbackInfoChanged() ), this, SLOT( handlePlaybackInfoChanged() ) );

    connect( mSongData, SIGNAL( songDetailInfoChanged() ), this, SLOT( songDetailInfoChanged() ) );

    connect( mDetailList, SIGNAL( pressed( HbListWidgetItem  * ) ), this, SLOT( handleListItemSelected( HbListWidgetItem  * ) ) );

    connect( mSongDetailsGroupBox, SIGNAL( toggled( bool ) ), this, SLOT( handleDetailsGroupBoxToggled( bool ) ) );

    connect( mInspireMeGroupBox, SIGNAL( toggled( bool ) ), this, SLOT( handleInspireMeGroupBoxToggled( bool ) ) );

    connect( mMpQueryManager, SIGNAL(inspireMeItemsMetadataRetrieved()), this, SLOT(renderInspireMeMetadata()));

    connect( mMpQueryManager, SIGNAL(inspireMeItemAlbumArtReady()), this, SLOT(renderInspireMeAlbumArts()));    

    connect( mMpQueryManager, SIGNAL(localMusicStoreRetrieved(bool)), this, SLOT(queryInspireMe(bool)), Qt::QueuedConnection);

    connect( mMpQueryManager, SIGNAL(inspireMeItemsRetrievalError()), this, SLOT(queryLocalMusicStore()), Qt::QueuedConnection);

    TX_EXIT

}

void MpDetailsView::queryLocalMusicStore()

{

    TX_ENTRY

    mMpQueryManager->reset();

    mMpQueryManager->queryLocalMusicStore(); 

    TX_EXIT        

}

/*!

 Activates the details view.

 */

void MpDetailsView::activateView()

{

    TX_ENTRY

    setNavigationAction( mSoftKeyBack );

    mActivated = true;

    TX_LOG_ARGS( "InspireMeVal: " << MpSettingsManager::inspireMe() );

    TX_LOG_ARGS( "SongDetailsGbVal: " << MpSettingsManager::songDetailsGb() );

    mInspireMeGroupBox->setCollapsed(!MpSettingsManager::inspireMe());

    mSongDetailsGroupBox->setCollapsed(!MpSettingsManager::songDetailsGb());

    TX_EXIT

}

/*!

 Deactivates the details view.

 */

void MpDetailsView::deactivateView()

{

    TX_ENTRY

    saveGroupBoxStates();

    setNavigationAction( 0 );

    mActivated = false;

    TX_EXIT

}

void MpDetailsView::saveGroupBoxStates()

{

    TX_ENTRY

    if (mInspireMeGroupBox->isCollapsed() ) {

        MpSettingsManager::setInspireMe(false);

    }

    else {

        MpSettingsManager::setInspireMe(true);

    }

    if (mSongDetailsGroupBox->isCollapsed() ) {

        MpSettingsManager::setSongDetailsGb(false);

    }

    else {

        MpSettingsManager::setSongDetailsGb(true);

    }

    TX_EXIT      

}

/*!

 Slot to handle back command from softkey.

 */

void MpDetailsView::back()

{

    TX_ENTRY

    emit command( MpCommon::ActivatePreviousView );

    TX_EXIT

}

/*!

 Slot to handle Album art changed.

 */

void MpDetailsView::albumArtChanged( )

{

    TX_ENTRY

    HbIcon icon;

    mSongData->albumArt( icon );

    mAlbumArt->setIcon( icon );

    TX_EXIT

}

/*!

 Slot to handle network error.

 */

{

    TX_ENTRY

    mInspireMeProgressBar->hide();    

    mInspireMeGroupBox->setCollapsed( true );    

    mInspireMeQueryOngoing = false;

    mInspireMeQueryRendered = false;

    // ensure that we dont get callbacks from previous queries. Especially true,

    // if details view is actived with a quick song change again

    mMpQueryManager->reset();

    mInspireList->clear();

    TX_EXIT

}

/*!

 Render inspireme groupbox after album arts downloaded

 */

void MpDetailsView::renderInspireMeMetadata()

{

    TX_ENTRY

    mInspireMeQueryOngoing = false;

    mInspireMeQueryRendered = true;

    mInspireMeProgressBar->hide();

    if( mMpQueryManager->recommendationsCount() ) {

        TX_LOG_ARGS( "There are recommendations." )

        // we have recommendations

        for ( int i = 0; i < mMpQueryManager->recommendationsCount(); ++i ) {

            // configure the layout properties

            if(!mInspireList->count()) {

                // we havent configured the prototype before

                HbListViewItem *prototype = mInspireList->listItemPrototype();

                prototype->setGraphicsSize( HbListViewItem::LargeIcon );

            }

            // create the item

            HbListWidgetItem  *inspireMeItem = new HbListWidgetItem();

            inspireMeItem->setIcon( mMpQueryManager->recommendedAlbumArt( i ));

            inspireMeItem->setText( mMpQueryManager->recommendedSong( i ) );

            inspireMeItem->setSecondaryText( mMpQueryManager->recommendedArtist( i ) );

            mInspireList->addItem( inspireMeItem );

        }

    }

    else {

        TX_LOG_ARGS( "There are NO recommendations" )

        // we dont have recommendations

        // we havent configured the prototype before

        HbListViewItem *prototype = mInspireList->listItemPrototype();

        const int maxTextRowCount = 20;

        const int minTextRowCount = 1;

        prototype->setSecondaryTextRowCount(minTextRowCount,maxTextRowCount);

        HbListWidgetItem  *inspireMeItem = new HbListWidgetItem();

        inspireMeItem->setSecondaryText( hbTrId( "txt_mus_dblist_val_there_are_no_recommendations" ) );

        mInspireList->addItem( inspireMeItem );

    }

    TX_EXIT

}

void MpDetailsView::renderInspireMeAlbumArts()

{

    TX_ENTRY    

    for( int i = 0; i < mInspireList->count(); ++i) {

        mInspireList->item(i)->setIcon( mMpQueryManager->recommendedAlbumArt( i ) );

    }

    TX_EXIT    

}

bool MpDetailsView::isMetadata() const

{

    bool result = ( ( !mSongData->album().isEmpty() ) ||

                    ( !mSongData->artist().isEmpty() ) );

    TX_LOG_ARGS( "Inspire Me Query metadata available:" << result );

    return result;

}

/*!

 Slot to handle basic song information

 */

void MpDetailsView::handlePlaybackInfoChanged()

{

    TX_ENTRY

    // ensure that we dont get callbacks from previous queries. Especially true,

    // if details view is actived with a quick song change again

    mMpQueryManager->reset();

    mInspireList->clear();

    mInspireMeQueryRendered = false;

    // Clear the song data link until new query has been made.

    mSongData->setLink( "" );

    if ( !mSongData->title().isEmpty () ) {

        mSongText->setPlainText( mSongData->title() );

    }

    else {

        mSongText->setPlainText( mSongData->fileName() );

    }

    if ( !mSongData->album().isEmpty () ) {

        mAlbumText->setPlainText( mSongData->album() );

    }

    else {

        mAlbumText->setPlainText( hbTrId( "txt_mus_other_unknown7") );

    }

    if ( !mSongData->artist().isEmpty() ) {

        mArtistText->setPlainText( mSongData->artist() );

    }

    else {

        mArtistText->setPlainText( hbTrId( "txt_mus_other_unknown6") );

    }

    if(!mInspireMeGroupBox->isCollapsed()) {

        startInspireMe();

    }

    TX_EXIT

}

void MpDetailsView::startInspireMe()

{

    TX_ENTRY    

    if(isMetadata()) {

        // show progress bar, start store query or inspire me query process

        mInspireMeProgressBar->show();

        mInspireMeQueryOngoing = true;

        if( mMpQueryManager->isLocalMusicStore() ) {

            mMpQueryManager->queryInspireMeItems(mSongData->artist(),mSongData->album(),mSongData->title());

        }

        else {

            // no local store information present

            mMpQueryManager->queryLocalMusicStore();

        }

    }

    else {

        // no metadata. show no recommendations

        renderInspireMeMetadata();

    }

    TX_EXIT    

}

/*!

 Slot to handle detail song information

 */

void MpDetailsView::songDetailInfoChanged()

{

    TX_ENTRY

    mDetailList->clear();

    if ( !mSongData->albumTrack().isNull() ) {

        HbListWidgetItem *item = new HbListWidgetItem();

        item->setText( hbTrId( "txt_mus_dblist_song_number" ) );

        item->setSecondaryText( mSongData->albumTrack() );

        item->setEnabled( false );

        mDetailList->addItem( item );

    }

    if ( !mSongData->year().isNull() ) {

        HbListWidgetItem *item = new HbListWidgetItem();

        item->setText( hbTrId( "txt_mus_dblist_year" ) );

        item->setSecondaryText( mSongData->year() );

        item->setEnabled( false );

        mDetailList->addItem( item );

    }

    if ( !mSongData->genre().isNull() ) {

        HbListWidgetItem *item = new HbListWidgetItem();

        item->setText( hbTrId( "txt_mus_dblist_genre" ) );

        item->setSecondaryText( mSongData->genre() );

        item->setEnabled( false );

        mDetailList->addItem( item );

    }

    if ( !mSongData->composer().isNull() ) {

        HbListWidgetItem *item = new HbListWidgetItem();

        item->setText( hbTrId( "txt_mus_dblist_composer" ) );

        item->setSecondaryText( mSongData->composer() );

        item->setEnabled( false );

        mDetailList->addItem( item );

    }

    if ( !mSongData->fileName().isNull() ) {

        HbListWidgetItem *item = new HbListWidgetItem();

        item->setText( hbTrId( "txt_mus_dblist_file_name" ) );

        item->setSecondaryText( mSongData->fileName() );

        item->setEnabled( false );

        mDetailList->addItem( item );

    }

    if ( !mSongData->mimeType().isNull() ) {

        HbListWidgetItem *item = new HbListWidgetItem();

        item->setText( hbTrId( "txt_mus_dblist_format" ) );

        item->setSecondaryText( mSongData->mimeType() );

        item->setEnabled( false );

        mDetailList->addItem( item );

    }

    if ( !mSongData->duration().isNull() ) {

        HbListWidgetItem *item = new HbListWidgetItem();

        item->setText( hbTrId( "txt_mus_dblist_duration" ) );

        item->setSecondaryText( mSongData->duration() );

        item->setEnabled( false );

        mDetailList->addItem( item );

    }

    if ( !mSongData->bitRate().isNull() ) {

        HbListWidgetItem *item = new HbListWidgetItem();

        item->setText( hbTrId( "txt_mus_dblist_bitrate" ) );

        bool ok = false;

        int bitRate = mSongData->bitRate().toInt(&ok);

        TX_LOG_ARGS("Warning: If zero, bitrate is not read correctly. It wont show up in details" << ok);

        if(ok) {

            item->setSecondaryText( hbTrId("txt_mus_dblist_bitrate_val_ln_kbps", bitRate) );

        }

        item->setEnabled( false );

        mDetailList->addItem( item );

    }