/*

* 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:

*

*/

// System includes

#include <QTimer>

#include <HbPushButton>

#include <HbAction>

#include <HbMenu>

#include <HbApplication>

#include <HbActivityManager>

#include <QPixmap>

#include <HbLabel>

#include <HbFrameItem>          // Temporarily here until docml supports frame items

// User includes

#include "radiowindow.h"

#include "radiomainview.h"

#include "radiofrequencystrip.h"

#include "radiouiengine.h"

#include "radiologger.h"

#include "radiostationcarousel.h"

#include "radiouiloader.h"

#include "radioutil.h"

#include "radiostationmodel.h"

#include "radiofrequencyscanner.h"

// Constants

const QLatin1String RADIO_MAINVIEW_ACTIVITY_ID( "FMRadioMainView" );

/*!

 * Temporary convenience function to set frame background until DOCML supports frame items

 */

static void initFrameBackground( RadioUiLoader& uiLoader,

                                 const QString backgroundName,

                                 HbFrameDrawer::FrameType frameType )

{

    if ( HbLabel* backgroundLabel = uiLoader.findObject<HbLabel>( backgroundName ) ) {

        QString backgroundName = backgroundLabel->icon().iconName();

        HbFrameItem* frameItem = new HbFrameItem( backgroundName, frameType, backgroundLabel );

        backgroundLabel->setBackgroundItem( frameItem );

    }

}

/*!

 *

 */

RadioMainView::RadioMainView() :

    RadioViewBase( false ),

    mCarousel( NULL ),

    mFrequencyStrip( NULL ),

    mSkippingAction( NULL ),

    mAlternateSkipping( false )

{

}

/*!

 *

 */

RadioMainView::~RadioMainView()

{

}

/*!

 * \reimp

 *

 */

void RadioMainView::setScanningMode( bool scanning )

{

    if ( scanning ) {

        loadSection( DOCML::FILE_MAINVIEW, DOCML::MV_SECTION_SCANNING );

    } else {

        loadSection( DOCML::FILE_MAINVIEW, DOCML::MV_SECTION_NORMAL );

        updateFavoriteButton();

        mFrequencyScanner.take();

        const bool firsTimeStart = mUiEngine->isFirstTimeStart();

        const int rowCount = mUiEngine->stationModel().rowCount();

        if ( firsTimeStart && rowCount != 0 ) {

            mUiEngine->setFirstTimeStartPerformed( true );

        }

    }

}

/*!

 * \reimp

 *

 */

void RadioMainView::preLazyLoadInit()

{

    initFrameBackground( *mUiLoader, DOCML::MV_NAME_FREQUENCY_BACKGROUND, HbFrameDrawer::NinePieces );

    initFrameBackground( *mUiLoader, DOCML::MV_NAME_CAROUSEL_BACKGROUND, HbFrameDrawer::NinePieces );

}

/*!

 * \reimp

 *

 */

void RadioMainView::init()

{

    LOG_METHOD;

    loadSection( DOCML::FILE_MAINVIEW, DOCML::SECTION_LAZY_LOAD );

    initFrameBackground( *mUiLoader, DOCML::MV_NAME_CAROUSEL_OVERLAY, HbFrameDrawer::NinePieces );

    mCarousel = mUiLoader->findObject<RadioStationCarousel>( DOCML::MV_NAME_STATION_CAROUSEL );

    mCarousel->init( *mUiLoader, mUiEngine.data() );

    mCarousel->setLandscape( mMainWindow->orientation() == Qt::Horizontal );

    mFrequencyStrip = mUiLoader->findObject<RadioFrequencyStrip>( DOCML::MV_NAME_FREQUENCY_STRIP );

    mFrequencyStrip->init( mUiEngine.data(), *mUiLoader );

    RadioStationModel* stationModel = &mUiEngine->stationModel();

    Radio::connect( mFrequencyStrip,            SIGNAL(frequencyChanged(uint,int,int)),

                    this,                       SLOT(setFrequencyFromWidget(uint,int,int)) );

    Radio::connect( mCarousel,                  SIGNAL(frequencyChanged(uint,int,int)),

                    this,                       SLOT(setFrequencyFromWidget(uint,int,int)) );

    Radio::connect( mUiEngine.data(),           SIGNAL(tunedToFrequency(uint,int)),

                    this,                       SLOT(setFrequencyFromEngine(uint,int)) );

    Radio::connect( mFrequencyStrip,            SIGNAL(manualSeekChanged(bool)),

                    this,                       SLOT(setManualSeekMode(bool)) );

    Radio::connect( mFrequencyStrip,            SIGNAL(skipRequested(int)),

                    this,                       SLOT(skip(int)) );

    Radio::connect( mCarousel,                  SIGNAL(skipRequested(int)),

                    this,                       SLOT(skip(int)) );

    Radio::connect( mFrequencyStrip,            SIGNAL(seekRequested(int)),

                    mUiEngine.data(),           SLOT(seekStation(int)) );

    Radio::connect( mUiEngine.data(),           SIGNAL(seekingStarted(int)),

                    this,                       SLOT(seekingStarted()) );

    Radio::connect( mUiEngine.data(),           SIGNAL(antennaStatusChanged(bool)),

                    this,                       SLOT(updateAntennaStatus(bool)) );

    Radio::connect( mUiEngine.data(),           SIGNAL(audioRouteChanged(bool)),

                    this,                       SLOT(updateAudioRoute(bool)) );

    Radio::connect( stationModel,               SIGNAL(favoriteChanged(RadioStation)),

                    this,                       SLOT(handleFavoriteChange(RadioStation)) );

    connectXmlElement( DOCML::MV_NAME_STATIONS_BUTTON,  SIGNAL(clicked()),

                       mMainWindow,                     SLOT(activateStationsView()) );

    connectXmlElement( DOCML::MV_NAME_FAVORITE_BUTTON,  SIGNAL(clicked()),

                       this,                            SLOT(toggleFavorite()) );

    connectXmlElement( DOCML::MV_NAME_SPEAKER_BUTTON,   SIGNAL(clicked()),

                       mUiEngine.data(),                SLOT(toggleAudioRoute()) );

    connectXmlElement( DOCML::MV_NAME_SCAN_ACTION,      SIGNAL(triggered()),

                       this,                            SLOT(toggleScanning()) );

    updateFavoriteButton();

    connectCommonMenuItem( MenuItem::Exit );

    // "Play history" menu item

    connectViewChangeMenuItem( DOCML::MV_NAME_HISTORYVIEW_ACTION, SLOT(activateHistoryView()) );

    updateAudioRoute( mUiEngine->isUsingLoudspeaker() );

    // Add "back" navigation action to put the application to background

    HbAction* backAction = new HbAction( Hb::BackNaviAction, this );

#ifdef BUILD_WIN32

    Radio::connect( backAction,     SIGNAL(triggered()),

                    this,           SLOT(quit()) );

#else

    Radio::connect( backAction,     SIGNAL(triggered()),

                    mMainWindow,    SLOT(lower()) );

#endif // BUILD_WIN32

    setNavigationAction( backAction );

    const bool firsTimeStart = mUiEngine->isFirstTimeStart();

    const int rowCount = mUiEngine->stationModel().rowCount();

    Radio::connect( static_cast<HbApplication*>( qApp ),    SIGNAL(aboutToQuit()),

                    this,                                   SLOT(saveActivity()) );

    emit applicationReady();

}

/*!

 * \reimp

 *

 */

void RadioMainView::setOrientation()

{

    loadSection( DOCML::FILE_MAINVIEW, mMainWindow->orientationSection() );

    if ( mCarousel && mFrequencyStrip ) {

        mCarousel->setFrequency( mFrequencyStrip->frequency(), TuneReason::Unspecified );

        mCarousel->setLandscape( mMainWindow->orientation() == Qt::Horizontal );

    }

}

/*!

 * \reimp

 *

 */

void RadioMainView::userAccepted()

{

    mFrequencyScanner.reset( new RadioFrequencyScanner( *mUiEngine, this ) );

    mFrequencyScanner->startScanning();

}

/*!

 * \reimp

 *

 */

bool RadioMainView::eventFilter( QObject* watched, QEvent* event )

{

    if ( event->type() == QEvent::ApplicationDeactivate ) {

        mFrequencyStrip->cancelManualSeek();

    }

    return RadioViewBase::eventFilter( watched, event );

}

/*!

 * Private slot

 */

void RadioMainView::setFrequencyFromWidget( uint frequency, int reason, int direction )

{

//    LOG_FORMAT( "RadioMainView::setFrequencyFromWidget: %u, reason = %d", frequency, reason );

    if ( !RadioUtil::isScannerAlive() ) {

        if ( reason == TuneReason::FrequencyStrip ) {

//            mCarousel->setFrequency( frequency, reason, direction );

//            mUiEngine->tuneWithDelay( frequency, reason );

        } else if ( reason == TuneReason::ManualSeekUpdate ) {

            mCarousel->setFrequency( frequency, reason, RadioUtil::scrollDirection( direction ) );

        } else if ( reason == TuneReason::ManualSeekTune ) {

            LOG_FORMAT( "--------Manual seek tune: %u", frequency );

            mUiEngine->setFrequency( frequency, reason );

        } else if ( reason == TuneReason::StationCarousel ) {

            mFrequencyStrip->setFrequency( frequency, reason, RadioUtil::scrollDirection( direction ) );

            mUiEngine->setFrequency( frequency, reason );

        }

    }

}

/*!

 * Private slot

 */

void RadioMainView::setFrequencyFromEngine( uint frequency, int reason )

{

    LOG_FORMAT( "RadioMainView::setFrequencyFromEngine reason: %d", reason );

    if ( RadioUtil::scanStatus() != Scan::ScanningInMainView && !mFrequencyStrip->isInManualSeekMode() ) {

        mCarousel->clearInfoText();

        updateFavoriteButton();

        if ( reason != TuneReason::FrequencyStrip &&

             reason != TuneReason::StationCarousel &&

             reason != TuneReason::Skip ) {

            mCarousel->setFrequency( frequency, reason, Scroll::Shortest );

            mFrequencyStrip->setFrequency( frequency, reason, Scroll::Shortest );

        }

    }

}

/*!

 * Private slot

 */

void RadioMainView::skip( int skipMode )

{

//    if ( !mAlternateSkipping && ( skipMode == StationSkip::PreviousFavorite || skipMode == StationSkip::NextFavorite ) &&

//        mUiEngine->stationModel().favoriteCount() == 0 ) {

//        mCarousel->setInfoText( CarouselInfoText::NoFavorites );

//    } else {

        const uint currentFrequency = mFrequencyStrip->frequency();

        RadioStation station;

        mUiEngine->stationModel().findFrequency( currentFrequency, station );

        if ( mAlternateSkipping ) { //TODO: Remove. Temporary test code

            if ( sender() == mFrequencyStrip ) {

                if ( skipMode == StationSkip::NextFavorite ) {

                    skipMode = StationSkip::Next;

                } else if ( skipMode == StationSkip::PreviousFavorite ) {

                    skipMode = StationSkip::Previous;

                }

            } else if ( sender() == mCarousel ) {

                if ( skipMode == StationSkip::Next ) {

                    skipMode = StationSkip::NextFavorite;

                } else if ( skipMode == StationSkip::Previous ) {

                    skipMode = StationSkip::PreviousFavorite;

                }

            }

        }

        const uint frequency = mUiEngine->skipStation( static_cast<StationSkip::Mode>( skipMode ),

                                                                currentFrequency);

        if ( currentFrequency != frequency || station.isFavorite() ) {

            const Scroll::Direction direction = RadioUtil::scrollDirectionFromSkipMode( skipMode );

            mCarousel->setFrequency( frequency, TuneReason::Skip, direction );

            mFrequencyStrip->setFrequency( frequency, TuneReason::Skip, direction );

        }

//    }

}

/*!

 * Private slot

 */

void RadioMainView::openStationsView()

{

    mFrequencyStrip->cancelManualSeek();

    mMainWindow->activateStationsView();

}

/*!

 * Private slot

 */

void RadioMainView::toggleScanning()

{

    mFrequencyStrip->cancelManualSeek();

    if ( mFrequencyScanner ) {

        mFrequencyScanner->cancelScanning();

    } else {

        const int rowCount =  mUiEngine->stationModel().rowCount();

        if ( rowCount > 0 ) {

            askQuestion( hbTrId( "txt_rad_info_all_stations_in_stations_list_will_be" ) );

        } else {

            userAccepted();

        }

    }

}

/*!

 * Private slot

 */

void RadioMainView::toggleFavorite()

{

    if ( RadioUtil::isScannerAlive() ) {

        toggleScanning();

    } else {

        mUiEngine->stationModel().setData( QModelIndex(), mFrequencyStrip->frequency(), RadioRole::ToggleFavoriteRole );

    }

}

/*!

 * Private slot

 */

void RadioMainView::seekingStarted()

{

    if ( !RadioUtil::isScannerAlive() ) {

        mCarousel->setInfoText( CarouselInfoText::Seeking );

    }

}

/*!

 * Private slot

 */

void RadioMainView::updateAntennaStatus( bool connected )

{

    if ( !connected ) {

        mFrequencyStrip->cancelManualSeek();

    }

    HbAction* scanAction = mUiLoader->findObject<HbAction>( DOCML::MV_NAME_SCAN_ACTION );

    scanAction->setEnabled( connected );

    mCarousel->updateAntennaStatus( connected );

}

/*!

 * Private slot

 */

void RadioMainView::updateAudioRoute( bool loudspeaker )

{

    HbPushButton* loudspeakerButton = mUiLoader->findWidget<HbPushButton>( DOCML::MV_NAME_SPEAKER_BUTTON );

    if ( loudspeaker ) {

        loudspeakerButton->setIcon( HbIcon( "qtg_mono_speaker_off" ) );

        loudspeakerButton->setText( hbTrId( "txt_rad_button_deactivate_loudspeaker" ) );

    } else {

        loudspeakerButton->setIcon( HbIcon( "qtg_mono_speaker" ) );

        loudspeakerButton->setText( hbTrId( "txt_rad_button_activate_loudspeaker" ) );

    }

}

/*!

 * Private slot

 */

void RadioMainView::setManualSeekMode( bool manualSeekActive )

{

    if ( manualSeekActive ) {

        qApp->installEventFilter( this );

        mUiLoader->findWidget<HbPushButton>( DOCML::MV_NAME_FAVORITE_BUTTON )->setText( hbTrId( "txt_rad_button_add_to_favourites" ) );

    } else {

        qApp->removeEventFilter( this );

        updateFavoriteButton();

    }

    mUiEngine->setManualSeekMode( manualSeekActive );

    mCarousel->setManualSeekMode( manualSeekActive );

}

/*!

 * Private slot

 */

void RadioMainView::handleFavoriteChange( const RadioStation& station )

{

    mFrequencyStrip->updateFavorite( station.frequency() );

    updateFavoriteButton();

}

/*!

 * Private slot

 */

void RadioMainView::saveActivity()

{

    HbActivityManager* activityManager = qobject_cast<HbApplication*>(qApp)->activityManager();

    // Get a screenshot for saving to the activity manager

    QSize screenShotSize = mCarousel->size().toSize();

    QPixmap screenShot( screenShotSize );

    QPainter painter( &screenShot );

    // Draw the background and overlay

    HbLabel* backgroundLabel = mUiLoader->findWidget<HbLabel>( DOCML::MV_NAME_CAROUSEL_BACKGROUND );

    painter.drawPixmap( 0, 0, backgroundLabel->icon().pixmap().scaled( screenShotSize ) );

    backgroundLabel = mUiLoader->findWidget<HbLabel>( DOCML::MV_NAME_CAROUSEL_OVERLAY );

    painter.drawPixmap( 0, 0, backgroundLabel->icon().pixmap().scaled( screenShotSize ) );

    mCarousel->drawOffScreen( painter );

    QVariantHash metadata;

    metadata.insert( "screenshot", screenShot );

    #ifdef __WINS__

        screenShot.save( "c:\\radio.bmp" );

    #elif defined BUILD_WIN32

        screenShot.save( "radio.bmp" );

    #endif

    // Update the activity to the activity manager

    bool ok = activityManager->removeActivity( RADIO_MAINVIEW_ACTIVITY_ID );

    LOG_ASSERT( ok, LOG( "Failed to remove old activity from Activity Manager!" ) );

    ok = activityManager->addActivity( RADIO_MAINVIEW_ACTIVITY_ID, QVariant(), metadata );

    LOG_ASSERT( ok, LOG( "Failed to update activity to Activity Manager!" ) );

}

/*!

 *

 */

void RadioMainView::updateFavoriteButton()

{

    RadioStation station;

    RadioStationModel& model = mUiEngine->stationModel();

    model.findFrequency( mUiEngine->currentFrequency(), station );

    HbPushButton* favoriteButton = mUiLoader->findWidget<HbPushButton>( DOCML::MV_NAME_FAVORITE_BUTTON );

    if ( station.isFavorite() ) {

        favoriteButton->setText( hbTrId( "txt_fmradio_button_remove_from_favourites" ) );

        favoriteButton->setIcon( HbIcon( "qtg_mono_favourites_remove" ) );

    } else {

        favoriteButton->setText( hbTrId( "txt_rad_button_add_to_favourites" ) );

        favoriteButton->setIcon( HbIcon( "qtg_mono_add_to_favourites" ) );

    }

}