/*

* 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:  Meta data Access Wrapper

*

*/

#ifndef CMMMTPDPMETADATAACCESSWRAPPER_H

#define CMMMTPDPMETADATAACCESSWRAPPER_H

#include <mpxmediageneraldefs.h>

#include <badesca.h>

// forward declacration

class CMmMtpDpMetadataMpxAccess;

class CMmMtpDpMetadataVideoAccess;

class RFs;

class MMTPType;

class CMPXMediaArray;

class CMPXMedia;

class MMTPDataProviderFramework;

class CMTPObjectMetaData;

class CMmMtpDpMetadataAccessWrapper : public CBase

    {

public:

    static CMmMtpDpMetadataAccessWrapper* NewL( MMTPDataProviderFramework& aFramework );

    /**

    * Destructor

    */

    ~CMmMtpDpMetadataAccessWrapper();

public:

    /**

    * Get all abstract medias from MPX database in the assigned store

    * @param aStoreRoot, specify in which drive abstract medias are stored

    * @param aAbstractMedias, return result array

    * @param aCategory, indicate the category of abstract medias

    */

    IMPORT_C void GetAllAbstractMediaL( const TDesC& aStoreRoot,

        CDesCArray& aAbstractMedias,

        TMPXGeneralCategory aCategory );

    /**

    * Get all references of specified abstract medias

    * @param aAbstractMedia, specify of which reference should be get

    * @param aReferences, return result array which stored handles of all references

    */

    IMPORT_C void GetAllReferenceL( const CMTPObjectMetaData& aRefOwner,

        CDesCArray& aReferences );

    /**

    * Add object (music, video, playlist and abstract album) info to DB

    * @param aFullFileName, full file name of file

    * @return void

    */

    IMPORT_C void AddObjectL( const CMTPObjectMetaData& aObject );

    /**

    * Set abstract media to DB

    * @param aObject,

    * @param aRefFileArray, a array to store the full file name of media files

    * @return void

    */

    IMPORT_C void SetReferenceL( const CMTPObjectMetaData& aObject,

        CDesCArray& aRefFileArray );

    /**

    * Gets a piece of metadata from the collection

    * @param aPropCode, specify property code of aMediaProp

    * @param aNewData, object property value which will be get from

    *    aObjectMetaData

    * @param aObjectMetaData, owner of the property which should be

    *    inserted or updated into database

    * @return void

    */

    IMPORT_C void GetObjectMetadataValueL( const TUint16 aPropCode,

        MMTPType& aNewData,

        const CMTPObjectMetaData& aObjectMetaData );

    /**

    * Sets a piece of metadata in the collection

    * @param aPropCode, specify property code of aMediaProp

    * @param aNewData, object property value which will be set into

    *     aObjectMetaData

    * @param aObjectMetaData, owner of the property which should be

    *     inserted or updated into database

    * @return void

    */

    void SetObjectMetadataValueL( const TUint16 aPropCode,

        const MMTPType& aNewData,

        const CMTPObjectMetaData& aObjectMetaData );

    /**

    * Renames the file part of a record in the collection database

    * @param aOldObject, object need to be renamed

    * @param aNewFileName, new file name need update

    * @return void

    */

    IMPORT_C void RenameObjectL( const CMTPObjectMetaData& aOldObject, const TDesC& aNewFileName );

    /**

    * Deletes metadata information associated with the object

    * @param aObject, the object need to be deleted

    */

    IMPORT_C void DeleteObjectL( const CMTPObjectMetaData& aObject );

    /**

    * Set current  drive info

    * @param aStorageRoot, current drive info

    */

    void SetStorageRootL( const TDesC& aStorageRoot );

    /*

    * set image specific properties specific to videos

    * @param aFullFileName, the fullFileName of object

    * @param aWidth,  the width of an object in pixels to set

    * @parem aHeight,  the height of an object in pixels to set

    */

    void SetImageObjPropL( const CMTPObjectMetaData& aObject,

        const TUint32 aWidth,

        const TUint32 aHeight );

    /*

    * get image specific properties specific to videos

    * @param aFullFileName, the fullFileName of object

    * @param aWidth,  the width of an object in pixels to get

    * @parem aHeight,  the height of an object in pixels to get

    */

    void GetImageObjPropL( const CMTPObjectMetaData& aObject,

        TUint32& aWidth,

        TUint32& aHeight );

    /**

    * Get Modified object from DB

    * @param aStorageRoot, the root path of storage

    * @param arrayCount, array count

    * @param aRefFileArray, a array to store the full file name of media files

    * @return void

    */

    IMPORT_C void GetModifiedContentL( const TDesC& aStorageRoot,

        TInt& arrayCount,

        CDesCArray& aRefFileArray );

    /**

    * Updated Music DB

    * @param aStorageRoot, the root path of storage

    * @return void

    */

    IMPORT_C void UpdateMusicCollectionL( const TDesC& aStorageRoot );

    /*

    * Called when the MTP session is initialised

    */

    void OpenSessionL();

    /*

    * clean up db resource especially for video dp

    */

    void CloseSessionL();

    /**

    * Cleanup database

    */

    IMPORT_C void CleanupDatabaseL();

    /**

    * if the playlsit exist in the MPX DB

    * @param aSuid, the suid of playlsit

    */

    TBool IsExistL( const TDesC& aSuid );

    // related to dummy files

    /**

    * Add one dummy file to dummy files array

    */

    IMPORT_C void AddDummyFileL( const TDesC& aDummyFileName );

    /**

    * Delete one dummy file from dummy files array

    */

    IMPORT_C void DeleteDummyFile( const TDesC& aDummyFileName );

    /**

    * Create a Dummy File from the virtual playlist URI

    * @param aPlaylistName, specify the filename of the dummy file

    */

    IMPORT_C void CreateDummyFile( const TDesC& aPlaylistName );

    TMPXGeneralCategory Category( const CMTPObjectMetaData& aObject );

private:

    CMmMtpDpMetadataAccessWrapper( MMTPDataProviderFramework& aFramework );

    void ConstructL();

    TMPXGeneralCategory ContainerCategoryL( const TDesC& aFullFileName );

    /**

    * Remove all dummy file of which format is "pla", and leave the "m3u"

    */

    void RemoveDummyFiles();

private:

    CMmMtpDpMetadataMpxAccess* iMmMtpDpMetadataMpxAccess;

    CMmMtpDpMetadataVideoAccess* iMmMtpDpMetadataVideoAccess;

    MMTPDataProviderFramework& iFramework;

    RFs& iFs;    // should not remove this member data!!!

    TInt iOpenCount;    // introduce to fix CollectionHelper Flush problem

    CDesCArray* iAbstractMediaArray;

    };

#endif // CMMMTPDPMETADATAACCESSWRAPPER_H