/*

* Copyright (c) 2008-2008 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:  Keeps up the call index

*

*/

#include "tccecallindex.h"

#include "mccecallarray.h"

#include "mccecallinfo.h"

#include "cccelogger.h"

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

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

// Constructor

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

//

TCCECallIndex::TCCECallIndex( MCCECallArray& aCallArray ) : 

    iCallArray( aCallArray )

    {

    }

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

// Checks smallest available call index

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

//

TInt TCCECallIndex::CurrentCallIndex() const

    {

    CCELOGSTRING( "TCCECallIndex::CurrentCallIndex(): In" );

    TInt smallestAvailableCallIndex = 1; // Smallest call index is 1

    // Iterate until call index value has not changed. 

    // TODO: There has to be better way to solve call index. 

    TBool callIndexChanged( ETrue );

    while( callIndexChanged )

        {

        // Iterate over the calls and check if smallestAvailableCallIndex is in use

        // with some call.

        callIndexChanged = EFalse;

        for ( TInt i = 0; i < iCallArray.MaxNumberOfCalls(); i++ )

            {

            if( CheckAndIncrementCallIndex( iCallArray.CallInfo( i ), smallestAvailableCallIndex ) )

                {

                callIndexChanged = ETrue;

                }

            }

            if ( CheckAndIncrementCallIndex( iCallArray.EmergencyCallInfo(), smallestAvailableCallIndex ) )

                {

                callIndexChanged = ETrue;

                }

        }

    CCELOGSTRING2( "TCCECallIndex::CurrentCallIndex(): Smallest avail call index = %d", smallestAvailableCallIndex );

    CCELOGSTRING( "TCCECallIndex::CurrentCallIndex(): Out" );

    return smallestAvailableCallIndex;

    }

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

// Checks and increments the call index.

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

//

TBool TCCECallIndex::CheckAndIncrementCallIndex( 

    MCCECallInfo* aCallInfo, 

    TInt& aCallIndex ) const

    {

    if ( aCallInfo && aCallInfo->State() != CCPCall::EStateIdle )

        {

        if ( aCallIndex == aCallInfo->CallIndex() )

            {

            aCallIndex++;

            return ETrue;

            }

        }

    return EFalse;

    }