/*

* Copyright (c) 2006-2007 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:  a new wrapper class in QT 

 *

*/

#ifndef IRQISDSCLIENT_H

#define IRQISDSCLIENT_H

#include <QObject>

#include <e32base.h>

#include <badesca.h>

#include <QList> 

#include "irqenums.h" 

class IRQIsdsClientImpl;

class IRQFavoritesDB;

class IRQPreset;

class IRQBrowseCategoryItem;

class IRQChannelItem;

enum IRQSycPresetStatus

{

    EIRQIsdsSycPresetNoChange,

    EIRQIsdsSycPresetRemoved,

    EIRQIsdsSycPresetChanged

};

/**

 *This class is being used by the UI to send request and get data from low layer

 *All interfaces are QT-supported

 */

class IRQIsdsClient : public QObject

{

Q_OBJECT

public:

    /**

     *IRQIsdsClient::IRQIsdsClientInterfaceIDs()

     *enum to indicate which the type of category   

     */

    enum IRQIsdsClientInterfaceIDs

    {

        EGenre, ELanguages, ECountries, Ehotpicks

    };

    /**

     *IRQIsdsClient::openInstance() 

     *to get an instance of the IRQIsdsClient. 

     *@return IRQIsdsClient *

     */

    IMPORT_C static IRQIsdsClient *openInstance();

    /**

     *IRQIsdsClient::CloseInstance() 

     *close the instance.

     *@return IRQIsdsClient *

     */

    IMPORT_C void closeInstance();

    /**

     *IRQIsdsClient::IsdsSearchRequestL()

     *Issue a search request to the isds server

     *@param QString, the requested search string

     **/

    IMPORT_C void isdsSearchRequest(const QString& aIsdsSearchString);

    /**

     *IRQIsdsClient::IsdsCategoryRequest()

     *Send the category request by the category type

     *@param IRQIsdsClientInterfaceIDs, the requested category type

     **/

    IMPORT_C void isdsCategoryRequest(

            IRQIsdsClient::IRQIsdsClientInterfaceIDs aIDType, bool& aCache);

    /**

     *IRQIsdsClient::isdsIsCategoryCached()

     *to check wether the request data is cached. Different from the above

     *function, this function will not send the http request if the data is 

     *not cached in DB. Normally, we call this function to check the cache.

     **/

    IMPORT_C bool isdsIsCategoryCached(IRQIsdsClient::IRQIsdsClientInterfaceIDs aIDType);

    /**

     *IRQIsdsClient::isdsIsChannelCached()

     *to check wether the request data is cached. Different from the followed

     *function, this function will not send the http request if the data is 

     *not cached in DB. Normally, we call this function to check the cache.

     **/

    IMPORT_C bool isdsIsChannelCached(int aIndex);

    /**

     *IRQIsdsClient::IsdsChannelRequestL()

     *Send the channels request by the channel index in the specify category

     *@param int, the requested index from UI view   

     **/

    IMPORT_C void isdsChannelRequest(int aIndex, bool& aCache);

    /**

     *IRQIsdsClient::IsdsListenRequestL()

     *issue a listen request to the isds client. 

     *@param int,bool, the current index of channel, the history tag  

     **/

    IMPORT_C void isdsListenRequest(int aCurrentIndex, bool aHistoryBool =

            false);

    /**

     *IRQIsdsClient::IsdsListenRequestL()

     *to syncronize presets

     *@param int,QString, the preset id and the last modified tag for the preset   

     **/

    IMPORT_C int isdsSyncPreset(int aPresetId, const QString& aIfModifySince, IRQFavoritesDB *aFavPresets);

    /**

     *IRQIsdsClient::IsdsCancelRequest()

     *Cacel the request sent by the UI.

     *@param None

     **/

    IMPORT_C void isdsCancelRequest();

    /**

     *IRQIsdsClient::IsdsGetCurrentPlayingIndex()

     *get the playing song's index 

     *@param None

     **/

    IMPORT_C int isdsGetCurrentPlayingIndex();

    /**

     *IRQIsdsClient::IsdsIsCategoryBanner()

     *to see wether category view has a banner.

     *@param None

     **/

    IMPORT_C bool isdsIsCategoryBanner();

    /**

     *IRQIsdsClient::IsdsIsChannelBanner()

     *to see wether channel view has a banner.

     *@param None

     **/

    IMPORT_C bool isdsIsChannelBanner();

    /**

     *IRQIsdsClient::IsdsLogoDownSendRequestL()

     *the api is called from the UI(nowplaying view) to download logo.

     *@param None

     **/

    IMPORT_C void isdsLogoDownSendRequest(IRQPreset* aPreset, int aNPVReq = 1,

            int aXValue = 0, int aYValue = 0);

    /**

     *IRQIsdsClient::isdsIsLogoCached()

     *to check wether the preset's logo is cached or not.      

     **/

    IMPORT_C bool isdsIsLogoCached(IRQPreset* aPreset, int aXValue = 0, int aYValue = 0);

    /**

     *IRQIsdsClient::isdsLogoDownCancelTransaction()

     *the api is called to cancel the current transaction

     *@param None

     **/

    IMPORT_C void isdsLogoDownCancelTransaction();

    /**

     * IRQIsdsClient::isdsLogoDownIsRunning()

     *  To know the status of downloading logo

     */

    IMPORT_C bool isdsLogoDownIsRunning() const;

    /**

     * IRQIsdsClient::IsdsLogoDownCheckCacheLogoL()

     * takes the url as a parameter and the return value indicates wether the 

     * logo is in the cache. If the logo is in the cache, the logo data will 

     * be saved in an internal member of the logodown engine and we can use 

     * the next function to get it from the engine. 

     * this API is called form the search results view.

     * @param QString: the url of the img, int: the status for getting

     */

    IMPORT_C void isdsLogoDownCheckCacheLogo(const QString& aURL, int& aStatus);

    /**

     * IRQIsdsClient::IsdsLogoDownSendCacheLogo()

     * get the cache logo from the logodown engine. The return value should 

     * be changed to be QT value in future 

     * @param None

     */

    IMPORT_C TDesC8& isdsLogoDownSendCacheLogo();

    /**

     * IRQIsdsClient::isdsPostLog()

     * send the log file to the isds server

     * @param None

     */

    IMPORT_C void isdsPostLog(const QString& aFileName);

    /*

     * IRQIsdsClient::isdsGetIRID()

	 * get the irid of the application

     */

    IMPORT_C void isdsGetIRID();

    /*

     * IRQIsdsClient::isdsGetBrowseBanner()

     * get the browse advertisement url and clickthrough url

     */

    IMPORT_C void isdsGetBrowseBanner(QString& aBannerUrl, QString& aClickThroughUrl);

    /*

     * IRQIsdsClient::isdsMultiSearch()

     * the new interface of multi search

     */

    IMPORT_C void isdsMultSearch(QString aGenreID, QString aCountryID, QString aLanguageID, QString aSearchText);

    IMPORT_C bool isdsIsConstructSucceed() const;

    signals:

    /**

     *IRQIsdsClient::categoryItemsChanged()

     *A signal to notify UI that the category items data is changed

     *@param QList<IRQBrowseCategoryItem *>, the data list sent to UI model

     **/

    void categoryItemsChanged(QList<IRQBrowseCategoryItem *> *aPushItemsList);

    /**

     *IRQIsdsClient::channelItemsChanged()

     *A signal to notify UI that the channel items data is changed

     *@param QList<QIRChannelItem *>, the data list sent to UI model

     **/

    void channelItemsChanged(QList<IRQChannelItem *> *aPushItemsList);

    /**

     *IRQIsdsClient::operationException()

     *A signal to notify UI that some inner error occurs     

     *@param IRQError, the error type notified

     **/

    void operationException(IRQError aError);

    /**

     *IRQIsdsClient::presetResponse()

     *A signal to notify UI that the preset data is changed     * 

     *@param QIRPreset*, the data sent to UI model

     **/

    void presetResponse(IRQPreset *aPreset);

    /**

     *IRQIsdsClient::presetResponse()

     *A signal to notify UI that the preset data is changed     * 

     *@param QIRPreset* IRQSycPresetStatus, the data sent to UI model

     **/

    void syncPresetResult(IRQSycPresetStatus aStatus, IRQPreset *aPreset);

    /**

     *IRQIsdsClient::presetLogoDownloaded()

     *A signal to notify UI that the preset logo requested is downloaded from server 

     *@param None

     **/

    void presetLogoDownloaded(IRQPreset* aPreset);

    /**

     *IRQIsdsClient::presetLogoDownloadError()

     *A signal to notify UI that the preset logo downloading is error      

     *@param None

     **/

    void presetLogoDownloadError();

    /*

     * IRQIsdsClient::iridReceived()

     * A signal to notify UI that the irid is received

     */

    void iridReceived(QString aIRID);

private:

    /*

     * the IRQIsdsClientImpl of the IRQIsdsClient

     */

    IRQIsdsClientImpl *iImpl;

    /**

     *iSingletonInstances

     * the count of reference of the object

     */

    int iSingletonInstances;

    IRQIsdsClient();

    /**

     *IRQIsdsClient::~IRQIsdsClient()

     *default c++ function

     **/

    ~IRQIsdsClient();

};

#endif