/*

* 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 <qgraphicswebview>

#include <qwebsettings>

#include <QGraphicsWidget>

#include <QGraphicsLayoutItem>

#include <QUrl>

#include <QSslError>

#include <QDomElement>

#include <QWebPage>

#include <QWebFrame>

#include <QList>

#include <QFile>

#include <QTranslator>

#include <QLocale>

#include <QGraphicsLinearLayout>

#include <thumbnailmanager_qt.h>

#include <thumbnaildata.h>

#include <thumbnailobjectsource.h>

#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 "mpdetailsview.h"

#include "mpcommondefs.h"

#include "mpmpxdetailsframeworkwrapper.h"

#include "mpsongdata.h"

#include "mptrace.h"

const int KUndefined = -1;

const int KRecommendationNum = 2;

/*!

 Constructor

 */

MpDetailsView::MpDetailsView()

    : mSongData( 0 ),

      mFrameworkWrapper( 0 ),

      mActivated( false ),

      mWindow( 0 ),

      mSongText( NULL ),

      mAlbumText( NULL ),

      mArtistText( NULL ),

      mAlbumArt( NULL ),

      mDocumentLoader( NULL ),

      mDownloadedAlbumArts( 0 ),

      mAlbumArtsReadyCount( 0 ),

      mMpTranslator( 0 ),

      mCommonTranslator( 0 )

{

    TX_ENTRY

    bool widgetsOk = false;

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

    mDocumentLoader = new HbDocumentLoader();

    if ( mDocumentLoader ) {

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

        }

    if ( widgetsOk ) {

        QGraphicsWidget *widget; 

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

        mContainer = qobject_cast<HbWidget *>(widget);

        if ( mContainer ) {

            setWidget( mContainer );

        }

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

     mShareButton = qobject_cast<HbPushButton *>(widget);         

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

     mSongText = qobject_cast<HbLabel *>(widget);

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

     mArtistText = qobject_cast<HbLabel *>(widget);

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

     mAlbumText = qobject_cast<HbLabel *>(widget);

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

     mAlbumArt = qobject_cast<HbLabel *>(widget);

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

     mSongDetailsGroupBox = qobject_cast<HbGroupBox *>(widget);

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

     mInspireMeGroupBox = qobject_cast<HbGroupBox *>(widget);

    }

    else {

        TX_LOG_ARGS( "Error: invalid detailsview.docml" );

    }

    TX_EXIT

}

/*!

 Destructs the details view.

 */

MpDetailsView::~MpDetailsView()

{

    TX_ENTRY    

    if ( mFrameworkWrapper ) {

        delete mFrameworkWrapper;

    }

    }

    if ( mDocumentLoader ) {

        delete mDocumentLoader;

    }

    if ( mManager ) {

        mManager->deleteLater();

    }

    if ( mDownloadManager ) {

        mDownloadManager->deleteLater();

    }    

    if( mThumbnailManager ) {

        delete mThumbnailManager;

    }

    delete mMpTranslator;

    delete mCommonTranslator;

    TX_EXIT

}

/*!

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

 */

void MpDetailsView::initializeView()

{

    TX_ENTRY    

    //Load musicplayer and common translators

        QString lang = QLocale::system().name();

        QString path = QString( "z:/resource/qt/translations/" );

        bool translatorLoaded = false;

        mMpTranslator = new QTranslator( this );

        translatorLoaded = mMpTranslator->load( path + "musicplayer_" + lang );

        TX_LOG_ARGS( "Loading translator ok=" << translatorLoaded );

        if ( translatorLoaded ) {

            qApp->installTranslator( mMpTranslator );

        }

        mCommonTranslator = new QTranslator( this );

        translatorLoaded = mCommonTranslator->load( path + "common_" + lang );

        TX_LOG_ARGS( "Loading common translator ok=" << translatorLoaded );

        if ( translatorLoaded ) {

            qApp->installTranslator( mCommonTranslator );

        }

    mWindow = mainWindow();

    mFrameworkWrapper = new MpMpxDetailsFrameworkWrapper( );

    mSongData = mFrameworkWrapper->songData();

    mCompositePixmap = QPixmap( 150, 150 );

    mDetailList = new HbListWidget( mSongDetailsGroupBox );

    mButton = new HbPushButton( tr( "More recommendations" ) );

    mSongDetailsGroupBox->setCollapsable( true );

    mSongDetailsGroupBox->setHeading( tr("Song details") );

    mSongDetailsGroupBox->setContentWidget( mDetailList );

    mSongDetailsGroupBox->setCollapsed( true );

    mLayout = new QGraphicsLinearLayout( Qt::Vertical );

    mInspireMe = new HbWidget( mInspireMeGroupBox );

    mInspireList = new HbListWidget();

    mInspireMeGroupBox->setCollapsable( true );   

    mInspireMeGroupBox->setHeading( tr("Inspire me") );

    mInspireMeGroupBox->setContentWidget( mInspireMe ); 

    mManager = new QNetworkAccessManager( this );

    connect( mManager, SIGNAL( finished( QNetworkReply * ) ), this, SLOT( retrieveInformationFinished( QNetworkReply * ) ) );

    mDownloadManager = new QNetworkAccessManager( this );

    connect( mDownloadManager, SIGNAL( finished( QNetworkReply * ) ), this, SLOT( DownloadFinished( QNetworkReply * ) ) );

    mRecommendationAlbumArtsName << "C:\\Data\\albumOne.png" << "C:\\Data\\albumTwo.png"; 

    mThumbnailManager = new ThumbnailManager( this );

    mThumbnailManager->setQualityPreference( ThumbnailManager::OptimizeForQuality );

    mThumbnailManager->setThumbnailSize( ThumbnailManager::ThumbnailSmall );

    QObject::connect( mThumbnailManager, SIGNAL( thumbnailReady( QPixmap , void * , int , int ) ),

            this, SLOT( thumbnailReady( QPixmap , void * , int , int  ) ) );

    mDefaultRecommendationAlbumArt = QPixmap( ":/detailsviewicons/defaultalbumart.png" );

    // TODO: might need later

    setupMenu();

    connect( mShareButton, SIGNAL( clicked() ), this, SLOT( share() ) );    

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

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

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

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

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

    TX_EXIT

}

/*!

 Activates the details view.

 */

void MpDetailsView::activateView()

{

    TX_ENTRY    

    mFrameworkWrapper->retrieveSong();

    mActivated = true;

    TX_EXIT

}

/*!

 Deactivates the details view.

 */

void MpDetailsView::deactivateView()

{

    TX_ENTRY    

    setNavigationAction( 0 );

    mActivated = false;    

    TX_EXIT

}

/*!

 Setup the menu.

 */

void MpDetailsView::setupMenu()

{

    TX_ENTRY

    TX_EXIT

}

/*!

 Slot to handle back command from softkey.

 \reimp

 */

void MpDetailsView::back()

{

    TX_ENTRY  

    emit command( MpCommon::ActivatePlaybackView );

    TX_EXIT

}

/*!

 Slot to be called when share button is clicked

 */

void MpDetailsView::share()

{

    TX_ENTRY  

    TX_EXIT    

}

/*!

 Slot to handle Album art changed.

 */

void MpDetailsView::albumArtChanged( )

{    

    TX_ENTRY

    QPixmap pixmap;

    QIcon qicon;

    mSongData->albumArt( pixmap );

    composeAlbumCover( pixmap );

    if ( !mCompositePixmap.isNull() )

        qicon = QIcon( mCompositePixmap );

    else

        qicon = QIcon( pixmap );

    HbIcon icon( qicon );  

    mAlbumArt->setIcon( icon );

    TX_EXIT

}

void MpDetailsView::loadSharePlayer()

{

    TX_ENTRY       

    TX_EXIT    

}

/*!

 Slot to call when widget is loaded

 */

void MpDetailsView::webViewLoaded( bool ok )

{

    TX_ENTRY    

    if ( ok ) {

        TX_LOG_ARGS( "Loading web page successfully." );

    } else {

        TX_LOG_ARGS( "Loading web page failed!" );

    }

    TX_EXIT    

}

/*!

 Compose the album art.

 */

void MpDetailsView::composeAlbumCover( QPixmap albumart )

{

    TX_ENTRY

    mCompositePixmap.fill( Qt::transparent );

    QPainter painter( &mCompositePixmap );

    painter.setCompositionMode( QPainter::CompositionMode_Clear );

    painter.setCompositionMode( QPainter::CompositionMode_SourceOver );

    painter.fillRect( mCompositePixmap.rect(), Qt::transparent );

    painter.drawPixmap( QRect( 0, 0, 150, 150 ), albumart );

    TX_EXIT

}

/*!

 Make a key & value pair string for querying

 */

QString MpDetailsView::keyValues( QStringList keys, QStringList values ) const

{

    TX_ENTRY

    QString str;

    if ( keys.length() != values.length() ) {

        TX_LOG_ARGS( "Error: keys length is not equal to values length" ); 

    } else {

        for ( int i = 0; i < keys.length(); i++ ) {

            QString tValue = values.at( i );

            if ( 0 != tValue.length() )

            {

                str += keys.at( i ) + "=" + values.at( i ) + "&";

            }

        }

    }

    TX_EXIT

    return str.left( str.length() - 1 );

}

/*!

 Find the most suitable link based on Atom response from Ovi music server

 */

void MpDetailsView::handleParsedXML()

{

    TX_ENTRY

    QDomElement rootElement = mDomDocument.documentElement();

    if ( rootElement.attribute( "type" ) == tr( "search" ) ) {

        TX_LOG_ARGS( "URI response" )

        QString result;

        QDomElement entry = rootElement.firstChildElement( "entry" );

        while ( !entry.isNull() )

        {

            if ( entry.attribute( "type" ) == tr( "musictrack" ) ) {

                QDomElement link = entry.firstChildElement( "link" );

                while ( !link.isNull() )

                {

                    if ( link.attribute( "rel" ) == tr( "alternate" )

                        && link.attribute( "type" ) == tr( "text/html" ) ) {

                        result = link.attribute( "href" );

                    }

                    link = link.nextSiblingElement( "link" );

                }

            }

            entry = entry.nextSiblingElement( "entry" );

        }  

        mSongData->setLink( result );

    } else if ( rootElement.attribute( "type" ) == tr( "recommendedTracks" ) ) {

        TX_LOG_ARGS( "Recommendation response" )

        QDomElement entry = rootElement.firstChildElement( "entry" );

        QNetworkReply *reply;

        int count = 0;

        while ( !entry.isNull() && count < KRecommendationNum )

        {

            if ( entry.attribute( "type" ) == tr( "musictrack" ) ) {

                QDomElement link = entry.firstChildElement( "link" );

                while ( !link.isNull() )

                {

                    if ( link.attribute( "title" ) == tr( "albumart100" ) ) {

                        mRecommendationAlbumArtsLink.append( link.attribute( "href" ) );

                        break;

                    } else {

                        link = link.nextSiblingElement( "link" );

                    }                    

                }

                QDomElement metadata = entry.firstChildElement( "metadata" );

                mRecommendationSongs.append( metadata.firstChildElement( "name" ).text() );

                mRecommendationArtists.append( metadata.firstChildElement( "primaryartist" ).text() );

                count++;

            }

            entry = entry.nextSiblingElement( "entry" );

        }          

        for (int i = 0; i < KRecommendationNum; i++ ) {

            TX_LOG_ARGS( "song name: " << mRecommendationSongs.at(i) );

            TX_LOG_ARGS( "Artist name: " << mRecommendationArtists.at(i) );

            TX_LOG_ARGS( "Album art link: " << mRecommendationAlbumArtsLink.at(i) );

            if ( mRecommendationAlbumArtsLink.at( i ).contains( "http", Qt::CaseInsensitive ) ) {

                reply = mDownloadManager->get( QNetworkRequest( QUrl( mRecommendationAlbumArtsLink.at(i) ) ) );

                mReplys.append( reply );

                connect( reply, SIGNAL( error( QNetworkReply::NetworkError ) ), this, SLOT( retrieveInformationNetworkError( QNetworkReply::NetworkError ) ) );

                connect( reply, SIGNAL( sslErrors( QList<QSslError> ) ), this, SLOT( retrieveInformationSslErrors( QList<QSslError> ) ) );

            }             

        }

    } else {

        TX_LOG_ARGS( "Not supported response" )

    }

    TX_EXIT

}

/*!

 Sets recommendation album art

*/

void MpDetailsView::setAlbumArtUri( const QString &albumArtUri, const QString &albumArtName )

{

    TX_ENTRY_ARGS( "albumArtUri = " << albumArtUri )

    TX_LOG_ARGS( "albumArtName = " << albumArtName )

    if ( !albumArtUri.isEmpty() ) {

        int id = mThumbnailManager->getThumbnail( albumArtName, reinterpret_cast<void *>( const_cast<QString *>( &albumArtUri ) ) );

        if ( id == KUndefined ) {

            // Request failed. Set default album art.

            mRecommendationAlbumArtsMap.insert( albumArtUri, mDefaultRecommendationAlbumArt );

            recommendationAlbumArtReady();

        }

    }

    else {

        // No album art uri. Set default album art.

        mRecommendationAlbumArtsMap.insert( albumArtUri, mDefaultRecommendationAlbumArt );

        recommendationAlbumArtReady();

    }

    TX_EXIT

}

/*!

 Render inspireme groupbox after album arts downloaded

 */

void MpDetailsView::RenderInspireMeGroupBox() 

{

    TX_ENTRY

    for ( int i = 0; i < KRecommendationNum; i++ ) {

       HbListWidgetItem  *item = new HbListWidgetItem();       

       HbIcon icon( QIcon( mRecommendationAlbumArtsMap.value( mRecommendationAlbumArtsLink.at( i ) ) ) );

       item->setIcon( icon );

       item->setText( mRecommendationSongs.at( i ) );

       item->setSecondaryText( mRecommendationArtists.at( i ) );

       mInspireList->addItem( item );       

    }

    // TODO: HbListWidget has some problem to return the correct height, hard code to 180 for now.

    TX_LOG_ARGS( "height = " << mInspireList->geometry().height() );

    TX_LOG_ARGS( "height2 = " << mInspireList->size().height() );

    mInspireList->setMinimumHeight( 180 );

    mInspireList->setMaximumHeight( 180 );    

    mLayout->addItem( mInspireList );

    mButton->show();

    mLayout->addItem( mButton );

    mInspireMe->setLayout( mLayout );

    TX_EXIT

}

void MpDetailsView::recommendationAlbumArtReady()

{   

    TX_ENTRY_ARGS( "mAlbumArtsReadyCount = " << mAlbumArtsReadyCount )

    mAlbumArtsReadyCount++;

    if ( mAlbumArtsReadyCount == KRecommendationNum ) {

        RenderInspireMeGroupBox();

    }

    TX_EXIT

}

/*!

 Slot to handle basic song information

 */

void MpDetailsView::playbackInfoChanged()

{

    TX_ENTRY

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

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

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

    // Clear information & Remove album arts downloaded previously when song changes

    TX_LOG_ARGS( "Reply count = " << mReplys.count() );

    for ( int i = 0; i < mReplys.count(); i++ ) {

        QNetworkReply *reply = mReplys.at( i );

        if ( reply != NULL ) {

            TX_LOG_ARGS( "Reply index : " << i );

            reply->close();

            delete reply;

            reply = NULL;

        }   

    }

    mReplys.clear();

    mDownloadedAlbumArts = 0;

    mAlbumArtsReadyCount = 0;

    mInspireList->clear();

    for ( int i = 0; i < KRecommendationNum; i++) {

        mRecommendationSongs.clear();

        mRecommendationArtists.clear();

        mRecommendationAlbumArtsLink.clear();

        mRecommendationAlbumArtsMap.clear();