/*

* 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:

*

*/

#ifndef RADIOSTATIONINFO_P_H_

#define RADIOSTATIONINFO_P_H_

// System includes

#include <QTime>

// User includes

#include "radiostation.h"

#include "radiostationif.h"

// Class declaration

class RadioStationPrivate : public RadioStationIf

{

public:

    explicit RadioStationPrivate( int presetIndex = RadioStation::Invalid, uint frequency = 0 );

    explicit RadioStationPrivate( RadioStation::PresetFlag flag );

    virtual ~RadioStationPrivate();

    void init( int presetIndex, uint frequency = 0 );

private:

// from base class RadioStationIf

    int presetIndex() const;

    void setPresetIndex( int presetIndex );

    uint frequency() const;

    void setFrequency( uint frequency );

    QString name() const;

    void setName( QString name );

    bool isRenamedByUser() const;

    void setRenamedByUser( bool renamed );

    int genre() const;

    void setGenre( int genre );

    QString url() const;

    void setUrl( QString url );

    int piCode() const;

    void setPiCode( int piCode );

    bool isFavorite() const;

    void setFavorite( bool favorite );

    bool isLocalStation() const;

    void setLocalStation( bool localStation );

public: // data

    /**

     * Reference count used for implicit sharing.

     * Has to be named "ref" instead having the 'm' prefix like all other member variables in Radio

     * This is because convenience functions like qAtomicAssign() expect it to be named "ref"

     */

    QAtomicInt                  ref;

    // ========================================================================

    // Persistent data. Saved to Central repository

    // ========================================================================

    /**

     * Station frequency. The most important bit of information about a radio station.

     * Is checked to be non-null in the isValid() function

     */

    uint                        mFrequency;

    /**

     * Station index in the Preset Utility.

     * Negative values signify an invalid RadioStation that has not and will not be saved.

     * Initialized to -100 by default to indicate and invalid station.

     */

    int                         mPresetIndex;

    /**

     * Station name. Contains a name that is set in one of the following ways:

     *  1) Received through RDS as the stations PS name and station does not use dynamic PS

     *  2) Entered by the user. In this case the mRenamedByUser flag will be set and the name

     *     cannot be changed until the user removes the renaming.

     *  3) Callsign calculated from the PI code can be set as the station name if the station

     *     does not send RDS information and the current region is America

     */

    QString                     mName;

    /**

     * Flag to indicate whether or not the user has renamed the station

     */

    bool                        mRenamedByUser;

    /**

     * Station genre received through RDS

     */

    int                         mGenre;

    /**

     * Station URL. Can be e.g. a web address to the radio stations homepage

     */

    QString                     mUrl;

    /**

     * Stations PI code. Only used in the America region to calculate the Callsign if station

     * does not use RDS to broadcast PS name

     */

    int                         mPiCode;

    /**

     * Station type. Used by the application mainly to filter out certain stations depending

     * on the users preference to see all locally audible stations or all favorite stations.

     * Can have any combination of the following flags:

     *  - Favorite      The station is a favorite of the user.

     *  - LocalStation  The station was found in the last scan and should be audible in the current location

     *  - Temporary     Special flag to mark one RadioStation instance that is used to store

     *                  information of a manually tuned frequency that has not been saved by the user.

     */

    RadioStation::Type          mType;    // Station type, favorite or local station or neither

    // ========================================================================

    // Non-persistent data. Only kept in memory

    // ========================================================================

    /**

     * Radio station PS name type. Some radio stations use the PS name broadcasting against the

     * official RDS standard rules to broadcast advertisements. The ads are sent by changing the

     * PS name in relatively rapid succession. The RDS standard specifies that a station should

     * only use the PS name to broadcast a static station name.

     * The FM Radio application attempts to determine if the station uses dynamic PS or not and

     * stores the information here. Stations with a dynamic PS are treated differently in the UI and the

     * name is never saved to Central Repository because it would only contain a part of an advertisement.

     * Can have one of the following values:

     *  - Unknown   Dynamic PS check has not been done so it is unknown if the station uses dynamic PS

     *  - Dynamic   The check has been done and station has been found to use dynamic PS

     *  - Static    The check has been done and the station has been found not to use dynamic PS

     */

    RadioStation::PsType        mPsType;

    /**

     * Stores the Radio Text received through RDS. Can be either normal Radio Text or Radio Text Plus

     * where the tags have been parsed. Parsed Radio Text Plus is stored in HTML form, the normal Radio Text

     * is stored as plain text.

     */

    QString                     mRadioText;

    /**

     * Holder for the ads sent by using dynamic PS. Holds one part of the ad at a time.

     */

    QString                     mDynamicPsText;

    /**

     * Internal book keeping used to determine which member variables have been changed since last save

     * or reset. Used to decide which signals should be sent by the RadioStationModel when the station is saved.

     */

    RadioStation::Change        mChangeFlags;

    /**

     * Keeps track of station call sign calculation state

     */

    bool                        mCallSignCheckDone;

    /**

     * Time of the last PS name change. Used to check if the station changes its PS name too often.

     * In bad RDS coverage a station using dynamic PS might be incorrectly determined to use static PS.

     * This is a corrective effort to change that decision if the name changes too often.

     */

    QTime                       mLastPsNameChangeTime;

};

#endif // RADIOSTATIONINFO_P_H_