/*

* 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>

// User includes

#include "radiostationmodel.h"

#include "radiostationmodel_p.h"

#include "radiologger.h"

#include "radiopresetstorage.h"

#include "radioenginewrapper.h"

#include "radiouiengine.h"

#include "radiouiengine_p.h"

#include "radiostation.h"

#include "radiostation_p.h"

#include "radiohistorymodel.h"

// Constants

/**

 * Timeout period for checking if station is sending dynamic PS in milliseconds

 */

const int DYNAMIC_PS_CHECK_TIMEOUT = 10 * 1000;

/*!

 *

 */

RadioStationModelPrivate::RadioStationModelPrivate( RadioStationModel* model,

                                                    RadioUiEnginePrivate& uiEngine ) :

    q_ptr( model ),

    mUiEngine( uiEngine ),

    mCurrentStation( &mManualStation ),

    mDynamicPsTimer( new QTimer() )

{

    Radio::connect( mDynamicPsTimer.data(), SIGNAL(timeout()),

                    q_ptr,                  SLOT(dynamicPsCheckEnded()) );

    mDynamicPsTimer->setInterval( DYNAMIC_PS_CHECK_TIMEOUT );

    mDynamicPsTimer->setSingleShot( true );

}

/*!

 *

 */

RadioStationModelPrivate::~RadioStationModelPrivate()

{

    // Destructor needs to be defined. See explanation from RadioEngineWrapperPrivate destructor.

}

/*!

 * \reimp

 */

uint RadioStationModelPrivate::currentFrequency() const

{

    return mCurrentStation->frequency();

}

/*!

 * \reimp

 */

int RadioStationModelPrivate::currentPresetIndex() const

{

    return mCurrentStation->presetIndex();

}

/*!

 * Sets the currently tuned frequency. Meant to be set by the engine wrapper

 */

void RadioStationModelPrivate::setCurrentStation( uint frequency )

{

    LOG_METHOD;

    RadioStation* oldStation = mCurrentStation;

    if ( mStations.contains( frequency ) ) {

        // We have to be careful to check that key exists before using operator[]

        // with QMap since it will insert a default-constructed value if it doesn't exist yet.

        mCurrentStation = &mStations[ frequency ];

    } else {

        mManualStation.reset();

        mManualStation.setFrequency( frequency );

        mCurrentStation = &mManualStation;

    }

    Q_Q( RadioStationModel );

    if ( oldStation && oldStation->isValid() ) {

        q->emitDataChanged( *oldStation );

        q->emitDataChanged( *mCurrentStation );

    }

}

/*!

 * \reimp

 * Sets the genre to the currently tuned station

 */

void RadioStationModelPrivate::setCurrentGenre( uint frequency, int genre )

{

    Q_Q( RadioStationModel );

    if ( !station.isValid() ) {

        LOG( "Unable to find current station. Ignoring RDS" );

        return;

    }

    station.setGenre( genre );

    q->saveStation( station );

}

/*!

 * \reimp

 *

 */

void RadioStationModelPrivate::tunedToFrequency( uint frequency, int reason )

{

    if ( reason == TuneReason::Seek ) {

        addScannedFrequency( frequency );

    }

    setCurrentStation( frequency );

    startDynamicPsCheck();

}

/*!

 * \reimp

 * Checks if the given frequency exists in the list

 */

bool RadioStationModelPrivate::containsFrequency( uint frequency )

{

    return mStations.contains( frequency );

}

/*!

 * \reimp

 * Checks if the given preset index exists in the list

 */

bool RadioStationModelPrivate::containsPresetIndex( int presetIndex )

{

    Q_Q( RadioStationModel );

    return q->findPresetIndex( presetIndex ) != RadioStation::NotFound;

}

/*!

 * \reimp

 * Starts the dynamic PS check

 */

void RadioStationModelPrivate::startDynamicPsCheck()

{

    // Start the Dynamic PS check if the station has no name and ps type is not known

    // During the dynamic PS check the RadioStation's dynamicPs variable is used to store the

    // received PS name even though at this point it isn't known if it is dynamic or not.

    mDynamicPsTimer->stop();

    if ( mCurrentStation->psType() == RadioStation::Unknown ) {

        mCurrentStation->setDynamicPsText( "" );

        mDynamicPsTimer->start();

    }

}

/*!

 * \reimp

 *

 */

void RadioStationModelPrivate::addScannedFrequency( uint frequency )

{

    Q_Q( RadioStationModel );

    RadioStation station;

    if ( q->findFrequency( frequency, station ) ) {

        station.setType( RadioStation::LocalStation );

        q->saveStation( station );

    } else {

        station.setType( RadioStation::LocalStation );

        station.setFrequency( frequency );

        q->addStation( station );

    }

}

/*!

 * \reimp

 * Sets the PS name to the currently tuned station

 */

void RadioStationModelPrivate::setCurrentPsName( uint frequency, const QString& name )

{

    Q_Q( RadioStationModel );

    LOG_FORMAT( "void RadioStationModelPrivate::setCurrentPsName: %s", GETSTRING( name ) );

    if ( !station.isValid() ) {

        LOG( "Unable to find current station. Ignoring RDS" );

        return;

    }

    if ( station.psType() == RadioStation::Static ) {

        if ( name.compare( station.name() ) != 0 && !station.isRenamed() ) {

            station.setName( name );

            q->saveStation( station );

        }

    } else {

        if ( mDynamicPsTimer->isActive() ) {    // Dynamic PS check is ongoing

            LOG( "Dynamic Ps check ongoing" );

            if ( !station.dynamicPsText().isEmpty() &&

                    name.compare( station.dynamicPsText(), Qt::CaseInsensitive ) != 0  ) {

                LOG( "Dynamic Ps check - Second PS name arrived and is different. PS is dynamic" );

                station.setPsType( RadioStation::Dynamic ); // Station is sending Dynamic PS

                mDynamicPsTimer->stop();

                // Cleanup the station name if region is not America

                if ( !station.name().isEmpty()

                     && !station.isRenamed()

                     && mWrapper->region() != RadioRegion::America )

                {

                    LOG( "Station name cleanup" );

                    station.setName( "" );

                }

            }

            // Received PS name is published to the UI as dynamic PS while the check is ongoing

            // even though at this stage we don't know if it is dynamic or not.

            station.setDynamicPsText( name );

            q->saveStation( station );

        } else {

            if ( station.psType() == RadioStation::Dynamic ) {

                LOG( "Station uses Dynamic Ps" );

            } else {

                LOG( "Station PS type unknown" );

            }

            station.setDynamicPsText( name );

            q->saveStation( station );

        }

    }

}

/*!

 * \reimp

 * Sets the radio text to the currently tuned station

 */

void RadioStationModelPrivate::setCurrentRadioText( uint frequency, const QString& radioText )

{

    Q_Q( RadioStationModel );

    if ( !station.isValid() ) {

        LOG( "Unable to find current station. Ignoring RDS" );

        return;

    }

    station.setRadioText( radioText );

    q->saveStation( station );

    mUiEngine.api().historyModel().clearRadioTextPlus();

}

/*!

 * \reimp

 * Sets the radio text plus to the currently tuned station

 */

void RadioStationModelPrivate::setCurrentRadioTextPlus( uint frequency, int rtClass, const QString& rtItem )

{

    Q_Q( RadioStationModel );

    if ( !station.isValid() ) {

        LOG( "Unable to find current station. Ignoring RDS" );

        return;

    }

    station.setRadioTextPlus( rtClass, rtItem );

    q->saveStation( station );

    mUiEngine.api().historyModel().addRadioTextPlus( rtClass, rtItem, station );

}

/*!

 * \reimp

 * Sets the PI code to the currently tuned station

 */

void RadioStationModelPrivate::setCurrentPiCode( uint frequency, int piCode )

{

    Q_Q( RadioStationModel );

    if ( !station.isValid() ) {

        LOG( "Unable to find current station. Ignoring RDS" );

        return;

    }

#ifdef SHOW_CALLSIGN_IN_ANY_REGION

    RadioRegion::Region region = RadioRegion::America;

#else

    RadioRegion::Region region =  mWrapper->region();

#endif

    station.setPiCode( piCode, region );

    q->saveStation( station );

}

/*!

 *

 */

void RadioStationModelPrivate::doSaveStation( RadioStation& station, bool persistentSave )

{

    mStations.insert( station.frequency(), station );

    if ( persistentSave ) {

        const bool success = mPresetStorage->savePreset( *station.data_ptr() );

        RADIO_ASSERT( success, "RadioStationModelPrivate::saveStation", "Failed to add station" );

        Q_UNUSED( success );

    }

}

/*!

 *

 */

QList<RadioStation> RadioStationModelPrivate::favorites() const

{

    QList<RadioStation> favoriteList;

    foreach( const RadioStation& tempStation, mStations ) {

        if ( tempStation.isFavorite() ) {

            favoriteList.append( tempStation );

        }

    }

    return favoriteList;

}