/*

 * 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: causifscanner.h

 *

 */

#ifndef CAUSIFSCANNER_H

#define CAUSIFSCANNER_H

#include <e32base.h>

#include <usif/sif/sifcommon.h>

#include <usif/scr/scr.h>

#include "casrvplugin.h"

#include "cainstallnotifier.h"

#include "cammcwatcher.h"

class CCaStorageProxy;

class CCaInnerEntry;

class CCaMmcWatcher;

class TPluginParams;

namespace Usif

    {

    class CComponentEntry;

    }

using namespace Usif;

/*

 An implementation of the CCaSrvPlugin interface for the Reference Installer.

 The CaSrvManager loads and uses this plug-in when the MIME type of a package

 is 'binary/sif-refpkg'.

 */

NONSHARABLE_CLASS(CCaUsifScanner): public CCaSrvPlugin,

        public MCaInstallListener, public MMmcWatcherCallback

    {

public:

    /**

     * Two-phased constructor.

     * @param aPLuginParam plugin param consist of storage, storage utils and scr.

     * @retval New object.

     */

    static CCaUsifScanner* NewL( TPluginParams* aPluginParams );

    /**

     * Destructor.

     */

    ~CCaUsifScanner();

public:

    // From MCaInstallListener.

    /**

     * Handle Install/Uninstall Event.

     * @since S60 v5.0

     * @param aUid installed uid.

     */

public:

    // From MMmcWatcherCallback.

    /**

     * MmcChangeL is called when the MMC is removed or inserted.

     */

    void MmcChangeL();

private:

    /**

     * Constructor

     * @param aStorageProxy Storage handler.

     * @param aSoftwareRegistry software component registry.

     */

    CCaUsifScanner( CCaStorageProxy& aStorageProxy,

	        RSoftwareComponentRegistry& aSoftwareRegistry );

    /**

     * Second phased constructor.

     */

    void ConstructL();

    /**

     * Creates AppLib's entry from Usif's entry

     * @param aEntry Usif entry obtained from Sif database.

     * @param aCaEntry AppLib entry to be filled from Usif entry.

     */

    void CreateCaEntryFromEntryL( const CComponentEntry* aEntry,

            CCaInnerEntry* aCaEntry );

    /**

     * Adds package to database. Scans Sif db and adds entries to AppLib db.

     */

    void AddPackageL();

    /**

     * Updates package in the database.

     */

    void UpdatePackagesL();

    /**

     * Gets entries from AppLib story.

     * @param aArray Array of entries to be obtained from db.

     */

    void GetCaPackageEntriesL( RPointerArray<CCaInnerEntry>& aArray );

    /**

     * Gets entries from Usif story.

     * @param aArray Array of entries to be obtained from db.

     */

    void GetUsifPackageEntriesL( RPointerArray<CComponentEntry>& aArray );

    /**

     *  Checks if entry exists in AppLib db.

     *  @param aArray Array of entries from AppLib db.

     *  @param aEntry Entry data to be checked if exists.

     *  @retval Returns array index if exists, otherwise KErrNotFound.

     */

    TInt PackageExists( RPointerArray<CCaInnerEntry>& aArray,

            const CComponentEntry* aEntry );

    /**

     *  Finds deleted entries from Usif. Updates aCaArray.

     *  @param aCaArray Entries from AppLib db.

     *  @param aUsifArray Entries from Usif db.

     */

    void FindDeletedEntriesL( RPointerArray<CCaInnerEntry>& aCaArray,

            const RPointerArray<CComponentEntry>& aUsifArray );

    /**

     * Removes entries from db.

     * @param aCaArray Entries to be removed.

     */

    void RemoveEntriesFromDbL( RPointerArray<CCaInnerEntry>& aCaArray );

    /**

     * Update usif list.

     */

    void UpdateUsifListL();

private:

    /**

     * not own

     * Storage proxy.

     */

    CCaStorageProxy& iStorageProxy;

    /**

     * Install notifier. Own.

     */

    /**

     * File session. Own

     */

    RFs iFs;

    /**

     * Mmc watcher. Own.

     */

    CCaMmcWatcher* iMmcWatcher;

    /**

     * Software component registry. Not own.

     */

    RSoftwareComponentRegistry& iSoftwareRegistry;

    };

#endif // CAUSIFSCANNER_H