/*

* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  UpdateManager it controls the auto updation of feed.

*

*/

#ifndef _UPDATEMANAGER_H_

#define _UPDATEMANAGER_H_

//  INCLUDES

#include <e32property.h>  

#include <e32base.h>

#include "UpdateAllFeedsTask.h"

#include "etel3rdparty.h"

// CONSTANTS

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

class CFeedsServer;

class CUpdateQueue;

class CUpdateAllFeedsTask;

class CFeedsDatabase;

class CServerHttpConnection;

class CUpdateTimer;

class CRoamingInfo;

// CLASS DECLARATION

/**

*  The feed UpdateManager.

*

*  \b Library: FeedsEngine.lib

*

*  @since 7.1

*/

class CUpdateManager: public CTimer, public MUpdateAllFeedsTaskObserver

    {

public:  // From CActive

    /**

      * Handles an active object's request completion event.

      *

      * @since 7.1

      * @return void.

      */

    void RunL();

public:  // From MUpdateAllFeedsTaskObserver

    /**

     * Called to notify the obsever how many feeds remain to be updated.

     *

     * @since 7.1

     * @param aStatusCode The completion status of the request.

     * @return Void

     */

    virtual void UpdateAllFeedsProgress(TInt aMaxCount, TInt aRemaining);

    /**

     * Called upon completion of the task.

     *

     * @since 7.1

     * @param aStatusCode The completion status of the request.

     * @return Void

     */

    virtual void UpdateAllFeedsCompleted(TInt aStatusCode);

    /**

     * Returns the http-connection instance;

     *

     * @since 7.1

     * @return The http-connection instance.

     */

    virtual CHttpConnection& HttpConnection();

public:

    /**

     * Two-phased constructor.

     * @since 7.1

     * @param aFolderListId The folder list associate with this background update.

     * @param aAutoUpdateFreq The frequency of this background update.

     * @param aAutoUpdateAP The access point to use for this background update.

     * @param aAutoUpdateWhileRoaming The flag.

     */

     static CUpdateManager* NewL( TInt aFolderListId, TUint32 aAutoUpdateAP, TInt aAutoUpdateFreq, 

             TBool aAutoUpdateWhileRoaming, CFeedsServer& aFeedsServer);

    /**

     *

     * @since 7.1

     * Destructor

     */

    ~CUpdateManager();

    /**

     * This Method calls update Feed

     *

     * @since 7.1

     * @ return Integer

     */

    TInt UpdateL();

    /**

     * This method handles the updation of feeds 

     *     

     * @since 7.1

     * @return Integer.

     */

    TInt StartL(); 

    /**

     * This method Stop the updation;

     *

     * @since 7.1

     * Stop the Update timer

     */

    void Stop();

    /**

     * This method Returns the FolderListId;

     *

     * @since 7.1

     * @return The folder list ID.

     */

    TInt FolderListId();

    /**

     * This method Updates the update queue;

     *

     * @since 7.1

     * @return The folder list ID.

     */

    void UpdateFeedL(TInt aFeedId, TBool aDeleteFeed);

    /**

     * This method is a call back;

     *

     * @since 7.1

     * @return The folder list ID.

     */

    static TBool LazyCallBack(TAny* aPtr);

    /**

     * This method Sets the next timer event;

     *

     * @since 7.1

     * @return The folder list ID.

     */

    void StartTimer();

    /**

     * This method Adds feeds in queue;

     *

     * @since 7.1

     * @return The folder list ID.

     */

    void AddFeedL(TInt aFeedId);

private:        

    /**

     *

     * @since 7.1

     * By default Symbian 2nd phase constructor is private.

     */ 

    void ConstructL( TUint32 aAutoUpdateAP);

    /**

     *

     * @since 7.1

     * C++ default constructor.

     */

    CUpdateManager( TInt aFolderListId, TInt aAutoUpdateFreq, TBool aAutoUpdateWhileRoaming, CFeedsServer& aFeedsServer);

private:

    TInt                        iAutoUpdateFreq;

    TBool                       iAutoUpdateWhileRoaming;

    TInt                        iFolderListId;

    TUint32                     iAutoUpdateAp;

    RPointerArray<CUpdateQueue> iQueueArray;

    CFeedsServer&               iFeedsServer;

    CUpdateAllFeedsTask*        iUpdateAllFeedTask;

    CServerHttpConnection*      iHttpConnection;

    CIdle*                      iLazyCaller;

    TInt                        iCurrentFeedCount;

    RArray<TInt>                iFeedIds;

    TInt                        iMins;

    CRoamingInfo*               iRoamingInfo;

    TTime                       iLastAutoUpdate;

    //friend class

    friend class CRoamingInfo;

    friend class CFeedsServer;

    };

/**

*  The feed RoamingInfo.

*

*  \b Library: FeedsEngine.lib

*

*  @since 7.1

*/

class CRoamingInfo: public CActive

    {

public:  // Constructors and destructor

   /**

    * Two-phased constructor.

    *

    * @since 7.1

    * @param aFolderListId The folder list associate with this background update.

    * @param aAutoUpdateFreq The frequency of this background update.

    * @param aAutoUpdateAP The access point to use for this background update.

    * @param aAutoUpdateWhileRoaming The flag.

    */

	static CRoamingInfo* NewL(CUpdateManager *aUpdateManager);

   /**

    * @since 7.1

    * Destructor.

    */

    virtual ~CRoamingInfo();

public:  // From CActive

   /**

    * Handles an active object's request completion event.

    *

    * @since 7.1

    * @return void.

    */

    void RunL();

    void DoCancel();

public:

   /**

    * @return void.

    */

private:

   /**

    * @since 7.1

    * C++ default constructor.

    *

    */

    CRoamingInfo(CUpdateManager *aUpdateManager);

   /**

    * @since 7.1

    * By default Symbian 2nd phase constructor is private.

    *

    */

    void ConstructL();

private:

    };