/*

* 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:  Contact matching strategy

*

*/

#include <CVPbkContactManager.h>

#include <centralrepository.h>

#include <telconfigcrkeys.h>

#include <CVPbkContactStoreUriArray.h>

#include <cntdb.h>  // KBestMatchingPhoneNumbers

#include "cphcntcontactmatchstrategy.h"

#include "cphcntcontactstoreuris.h"

#include "CPhoneRawMatchNumberExtractor.h"

// Digit count used to match CS number.

const TInt KPhCntMatchMin = 7;

const TInt KPhCntMatchMax = 11;

const TInt KPhCntMatchDefault = KPhCntMatchMin;

// ======== MEMBER FUNCTIONS ========

CPhCntContactMatchStrategy::CPhCntContactMatchStrategy(

    CVPbkContactManager& aContactManager,

    CPhCntContactStoreUris& aContactStoreUris,

    MVPbkContactFindObserver& aObserver,

    TUint32 aMatchFlags ) :

    iContactManager( aContactManager ),

    iContactStoreUris( aContactStoreUris ),

    iObserver( aObserver ),

    iMatchFlags( aMatchFlags )

    {

    iContactStoreUris.SetObserver( *this );

    }

// ---------------------------------------------------------------------------

// Second phase constructor

// ---------------------------------------------------------------------------

//

void CPhCntContactMatchStrategy::ConstructL()

    {

    iCenRepSession = CRepository::NewL( KCRUidTelConfiguration );

    iCenRepNotifyHandler = 

        CCenRepNotifyHandler::NewL(

            *this, 

            *iCenRepSession, 

            CCenRepNotifyHandler::EIntKey,

            KTelMatchDigits );

    iCenRepNotifyHandler->StartListeningL();

    iNumberOfDigits = KPhCntMatchDefault;

    TInt sdMatchValue = KErrNotFound;

    // Find digit count to be used with matching.

    if ( iCenRepSession->Get( KTelMatchDigits, sdMatchValue )

         == KErrNone )

        {

        // If we can find a proper value from the cenrep, use it.

        if ( sdMatchValue >= KPhCntMatchMin && sdMatchValue <= KPhCntMatchMax )

            {

            iNumberOfDigits = sdMatchValue;

            }

        }

    User::LeaveIfError( CreateContactMatchStrategy() );

    iNumberExtractor = new( ELeave )CCntRawPhoneNumberExtractor();

    iNumberExtractor->ConstructL();

    }

// ---------------------------------------------------------------------------

// Static constructor.

// ---------------------------------------------------------------------------

//

CPhCntContactMatchStrategy* CPhCntContactMatchStrategy::NewL(

    CVPbkContactManager& aContactManager,

    CPhCntContactStoreUris& aContactStoreUris,

    MVPbkContactFindObserver& aObserver,

    TUint32 aMatchFlags )

    {

    CPhCntContactMatchStrategy* self = 

        new( ELeave ) CPhCntContactMatchStrategy( 

            aContactManager,

            aContactStoreUris, 

            aObserver,

            aMatchFlags );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

// ---------------------------------------------------------------------------

// Destructor.

// ---------------------------------------------------------------------------

//

CPhCntContactMatchStrategy::~CPhCntContactMatchStrategy()

    {

    if( iNumberExtractor )

        {

        iNumberExtractor->Release();    

        }

    if( iCenRepNotifyHandler )

        {

        iCenRepNotifyHandler->StopListening();    

        }

    delete iCenRepNotifyHandler;

    delete iCenRepSession;

    delete iMatchStrategy;

    delete iUriArray;

    }

// ---------------------------------------------------------------------------

// From MPhCntContactMatchStrategy

// Starts to find contacts which has aPhoneNumber.

// ---------------------------------------------------------------------------

//

void CPhCntContactMatchStrategy::FindMatchesL( const TDesC& aPhoneNumber )

    {

    if( iMatchStrategy )

        {

        MatchL( aPhoneNumber );

        }

    else

        {

        const TInt err( CreateContactMatchStrategy() );

        if( !err )

            {

            MatchL( aPhoneNumber );

            }

        else

            {

            User::Leave( KErrNotFound );            

            }

        }

    }

// ---------------------------------------------------------------------------

// Creates contact match strategy and destroys the old one.

// ---------------------------------------------------------------------------

//    

TInt CPhCntContactMatchStrategy::CreateContactMatchStrategy()

    {

    TInt err = KErrNone;

    if( !iUriArray )

        {

        TRAP( err, iUriArray = iContactStoreUris.ActiveContactStoresL() );

        }

    if( iUriArray )

        {

        delete iMatchStrategy;

        iMatchStrategy = NULL;

        err = DoCreateMatchStrategy();

        }

    else

        {

        err = KErrGeneral;

        }

    return err;                

    }

// ---------------------------------------------------------------------------

// From base class MCenRepNotifyHandlerCallback

// Notification from CenRep

// ---------------------------------------------------------------------------

//  

void CPhCntContactMatchStrategy::HandleNotifyString( 

    TUint32 aUid, 

    const TDesC16& aValue )

    {

    if ( aUid == KTelMatchDigits )

        {

        TLex lexer( aValue );

        TInt value;

        const TInt err( lexer.Val( value ) );

        if( !err ) 

            {

            if ( value < KPhCntMatchMin || value > KPhCntMatchMax )

                {

                iNumberOfDigits = KPhCntMatchDefault;

                }

            else

                {

                iNumberOfDigits = value;

                }

            CreateContactMatchStrategy();

            }

        }

    }

// ---------------------------------------------------------------------------

// From base class MPhCntContactStoreEventObserver

// Updates match strategy.

// ---------------------------------------------------------------------------

//

void CPhCntContactMatchStrategy::ContactStoreAvailabilityChanged()

    {

    delete iUriArray;

    iUriArray = NULL;

    CreateContactMatchStrategy();

    }

// ---------------------------------------------------------------------------

// Removes extra characters from number and matches with raw number.

// ---------------------------------------------------------------------------

//         

void CPhCntContactMatchStrategy::MatchL( 

    const TDesC& aPhoneNumber )

    {

    HBufC* rawNumber = HBufC::NewLC( aPhoneNumber.Length() );

    TPtr rawNumberPtr = rawNumber->Des();

    iNumberExtractor->ExtractRawNumber( aPhoneNumber, rawNumberPtr );

    DoMatchL( *rawNumber );

    CleanupStack::PopAndDestroy( rawNumber );

    }

// ---------------------------------------------------------------------------

// Creates contact match strategy

// ---------------------------------------------------------------------------

//     

TInt CPhCntContactMatchStrategy::DoCreateMatchStrategy()

    {

    CVPbkPhoneNumberMatchStrategy::TConfig config( 

            KBestMatchingPhoneNumbers,

            *iUriArray,

            CVPbkPhoneNumberMatchStrategy::EVPbkSequentialMatch, 

            iMatchFlags

            );

    TRAPD( err, iMatchStrategy = CVPbkPhoneNumberMatchStrategy::NewL( 

                    config, 

                    iContactManager, 

                    iObserver ) );       

    return err;

    }

// ---------------------------------------------------------------------------

// Makes the actual matching request.

// ---------------------------------------------------------------------------

//     

void CPhCntContactMatchStrategy::DoMatchL( 

    const TDesC& aNumber )

    {

    iMatchStrategy->MatchL( aNumber );

    }