/*

* Copyright (c) 2010 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: Database manager implementation for location picker and

*              maptile service.

*

*/

#ifndef __MYLOCATIONSDATABASEMANAGER_H__

#define __MYLOCATIONSDATABASEMANAGER_H__

// Landmarks

#include <EPos_CPosLmCategoryManager.h>

#include "mylocationslookupdb.h"

// Maximum string length of landmark address.

const TUint32 KMaxAddressLength = 255; 

/** Defines entry change type

*/

enum TEntryChangeType

    {

    /** Entry added */

    EEntryAdded,

    /** Entry modified */

    EEntryModified,

    /** Entry deleted */

    EEntryDeleted,

    /** Entry change unknown */

    EEntryUnknown

    };

/**

 * CMyLocationsDatabaseManager class.

 *  This class handles all the operations related to mylocations landmark database.

 *

 */

class CMyLocationsDatabaseManager : public CBase

    {

    public:

        // Constructors and destructor

        /**

         * ConstructL.

         * 2nd phase constructor.

         */

        void ConstructL();

        /**

         * CMyLocationsDatabaseManager.

         * C++ default constructor. 

         */

        CMyLocationsDatabaseManager();

        /**

         * ~CMyLocationsDatabaseManager.

         * Virtual Destructor.

         */

        virtual ~CMyLocationsDatabaseManager();

    public:

        /**

         * UpdateDatabaseL.

         * Updates the location into the landmark database and lookup table. 

         * Based on the entry source type and the entry change type the updation can be 

         * addition/modification/deletion.

         * 

         * @param[in] aLandmark Landmark object to be updated in the database.

         * @param[in] aUid Uid of the changed source entry.

         * @param[in] aSourceType Source type of the aUid.

         * @param[in] aChangeType Type of change to the entry ( added/modified/deleted )

         */

        void UpdateDatabaseL( CPosLandmark* aLandmark, const TUint32 aUid, 

                              const TUint32 aSourceType, const TEntryChangeType aChangeType );

        /** Gets the full address from a given landmark object

         *

         * @param[out] aLandmarkAddress comma separated landmark's full address

         * @param[in] aLandmark landmark object whose address needs to be found.

         */      

        void GetLandmarkFullAddress( TBuf<KMaxAddressLength>& aLandmarkAddress, 

                                     const CPosLandmark* aLandmark );

    private:

        /**

         * AddMylocationsCategory.

         */

        /**

         * CheckIfDuplicateExistsL.

         * Checks if this landmark is already present in database. 

         * If present returns the landmark id, else 0.

         * @param[in] aLandmark A landmark object to be checked for.

         * @returns If no duplicate is found in database returns 0 

         * else returns the id of the found landmark.

         */

        TPosLmItemId CheckIfDuplicateExistsL( const CPosLandmark* aLandmark );

        /**

         * CompareLandmarks.

         * Compares two landmarks. Only the text fields, landmark name, 

         * street, city, state country and postal code are compared. 

         * @param[in] aLandmark1 First landmark object to be compared.

         * @param[in] aLandmark2 Second landmark object to be compared.

         * @returns ETrue if the landmarks are same, else returns EFalse.

         */

       TBool CompareLandmarks( const CPosLandmark* alandmark1, 

                               const CPosLandmark* alandmark2 );

       /**

         * HandleEntryAdditionL.

         * Handles the entry addition in lookup table and landmarks db

         * @param[in] aLandmark Landmark object added.

         * @param[in] aUid Uid of the source entry corresponding to aLandmark..

         * @param[in] aSourceType source type of the aUid passed.

        */

       void HandleEntryAdditionL( CPosLandmark*  aLandmark, const TUint32 aUid,

                                  const TUint32 aSourceType );

       /**

         * HandleEntryModificationL.

         * Handles the entry modification in lookup table and landmarks db

         * @param[in] aLandmark Landmark object modified.

         * @param[in] aUid Uid of the source entry corresponding to aLandmark..

         * @param[in] aSourceType source type of the aUid passed.

        */

       void HandleEntryModificationL( CPosLandmark*  aLandmark, const TUint32 aUid,

                                      const TUint32 aSourceType );

       /**

         * HandleEntryDeletionL.

         * Handles the entry deletion in lookup table and landmarks db

         * @param[in] aUid Uid of the source entry corresponding to aLandmark..

         * @param[in] aSourceType source type of the aUid passed.

        */

       void HandleEntryDeletionL( const TUint32 aUid, const TUint32 aSourceType );

       /**

         * @param[in] aLandmark Landmark object modified.

         * @param[in] aUid Uid of the source entry corresponding to aLandmark..

        */

       /**

          * CheckAndReadLandmarkL.

          * Checks whether a category is available in database pointed by category manager.

          * @param[in] CPosLandmarkDatabase handle to the database manager

          * @param[in] aLmId Id of the landmark

          * @returns landmark object if found else NULL

         */

                       CPosLandmarkDatabase* aDb, const TUint32 aLmId );

    private:

        // Handle to the landmark database

        CPosLandmarkDatabase* iLandmarkDb;

        TPosLmItemId iLmContactsCatId;  

        // handle to landmarks lookup database.

        CLookupDatabase*  iLandmarksLookupDb;

        // handle to landmarks category manager

        CPosLmCategoryManager* iLandmarksCatManager;

        // handle to the file session

        RFs iFsSession;

    };

#endif  // __MYLOCATIONSDATABASEMANAGER_H__