/*

* 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:  A class for combining data of two contacts

*

*/

// INCLUDE FILES

#include <CPbk2ContactMerge.h>

// From Phonebook2

#include "Pbk2PresentationUtils.h"

#include <MPbk2ContactNameFormatter.h>

#include <MPbk2FieldPropertyArray.h>

#include <MPbk2FieldProperty.h>

#include <RPbk2LocalizedResourceFile.h>

#include <Pbk2DataCaging.hrh>

// From Virtual Phonebook

#include <MVPbkFieldType.h>

#include <CVPbkContactManager.h>

#include <MVPbkStoreContactFieldCollection.h>

#include <MVPbkStoreContact.h>

#include <MVPbkContactFieldTextData.h>

#include <MVPbkContactFieldBinaryData.h>

#include <MVPbkContactFieldDateTimeData.h>

#include <CVPbkContactFieldIterator.h>

#include <MVPbkContactStore.h>

#include <MVPbkContactStoreProperties.h>

#include <TVPbkFieldVersitProperty.h>

#include <CVPbkFieldTypeSelector.h>

// From System

#include <barsread.h>

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

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

// CPbk2ContactMerge::CPbk2ContactMerge

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

//

CPbk2ContactMerge::CPbk2ContactMerge( 

        CVPbkContactManager& aContactManager, 

        MPbk2ContactNameFormatter& aNameFormatter,

        const MPbk2FieldPropertyArray& aFieldProperties )

        :   iContactManager( aContactManager ),

            iNameFormatter( aNameFormatter ),

            iFieldProperties( aFieldProperties )

    {

    }

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

// CPbk2ContactMerge::~CPbk2ContactMerge

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

//

CPbk2ContactMerge::~CPbk2ContactMerge()

    {

    delete iEMailSelector;

    delete iNumberSelector;

    }

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

// CPbk2ContactMerge::NewL

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

//

EXPORT_C CPbk2ContactMerge* CPbk2ContactMerge::NewL(

        CVPbkContactManager& aContactManager, 

        MPbk2ContactNameFormatter& aNameFormatter,

        const MPbk2FieldPropertyArray& aFieldProperties )

    {

    CPbk2ContactMerge* self = new( ELeave ) CPbk2ContactMerge( 

        aContactManager, aNameFormatter, aFieldProperties );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CPbk2ContactMerge::ConstructL

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

//

void CPbk2ContactMerge::ConstructL()

    {

    RPbk2LocalizedResourceFile resFile( &iContactManager.FsSession() );

    resFile.OpenLC( KPbk2RomFileDrive,

        KDC_RESOURCE_FILES_DIR,

        Pbk2PresentationUtils::PresentationResourceFile() );

    TResourceReader reader;

    reader.SetBuffer( resFile.AllocReadLC( R_PBK2_EMAIL_SELECTOR ) );

    iEMailSelector = CVPbkFieldTypeSelector::NewL(

        reader,

        iContactManager.FieldTypes() );

    CleanupStack::PopAndDestroy(); // reader

    reader.SetBuffer( resFile.AllocReadLC( R_PBK2_NUMBER_SELECTOR ) );

    iNumberSelector  = CVPbkFieldTypeSelector::NewL(

        reader,

        iContactManager.FieldTypes() );

    CleanupStack::PopAndDestroy(2); // reader, resFile

    }

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

// CPbk2ContactMerge::MergeDataL

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

//

EXPORT_C TBool CPbk2ContactMerge::MergeDataL( 

        const MVPbkBaseContact& aContactFrom, MVPbkStoreContact& aContactTo )

    {

    TInt srcTitleFieldCount = 0;

    TInt copiedFieldCount = 0;

    const MVPbkBaseContactFieldCollection& srcFields = aContactFrom.Fields();

    const TInt srcFieldCount = srcFields.FieldCount();

    const MVPbkFieldTypeList& targetTypes = 

        aContactTo.ParentStore().StoreProperties().SupportedFields();

    for ( TInt i = 0; i < srcFieldCount; ++i )

        {

        const MVPbkBaseContactField& srcField = srcFields.FieldAt( i );

        const MVPbkFieldType* type = srcField.BestMatchingFieldType();

        // Title fields are not merged

        TBool titleField = iNameFormatter.IsTitleFieldType( *type );

        if ( titleField )

            {

            ++srcTitleFieldCount;

            }

        else if ( type && targetTypes.ContainsSame( *type ) )

            {            

            CVPbkBaseContactFieldTypeIterator* iter = 

                    CVPbkBaseContactFieldTypeIterator::NewLC( *type, 

                        aContactTo.Fields() );

            TInt maxNumOfFields = aContactTo.MaxNumberOfFieldL( *type );

            TInt curFieldCount = 0;

            while ( iter->HasNext() )

                {

                iter->Next();

                ++curFieldCount;

                }

            CleanupStack::PopAndDestroy( iter );

            // Check field multiplicity

            const MPbk2FieldProperty* prop = 

                iFieldProperties.FindProperty( *type );

            if ( prop && prop->Multiplicity() == EPbk2FieldMultiplicityOne )

                {

                // If UI specification limits the number of certain type

                // of field to one then check if the target contact

                // already contains that type of field

                if ( curFieldCount == 0 )

                    {

                    CopyFieldDataL( srcField, aContactTo );

                    ++copiedFieldCount;

                    }

                }

            else if ( ( maxNumOfFields == KVPbkStoreContactUnlimitedNumber ||

                      curFieldCount < aContactTo.MaxNumberOfFieldL( *type )) &&

                      !FindMatch( srcField, aContactTo ))

                {

                // Field can be copied from source to destination. This is 

                // because target field count is not limited or target contact

                // field limit is not exceeded.

                CopyFieldDataL( srcField, aContactTo );

                ++copiedFieldCount;

                }

            }

        }

    // Return ETrue if all data fields from source contact were copied to target

    return ( srcTitleFieldCount + copiedFieldCount ) == srcFieldCount;

    }

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

// CPbk2ContactMerge::CopyFieldDataL

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

//

void CPbk2ContactMerge::CopyFieldDataL( const MVPbkBaseContactField& aField, 

        MVPbkStoreContact& aContactTo )

    {

    // Field has always a non NULL field type when this function is called

    MVPbkStoreContactField* field = aContactTo.CreateFieldLC(

        *aField.BestMatchingFieldType() );

    field->FieldData().CopyL( aField.FieldData() );

    aContactTo.AddFieldL( field );

    CleanupStack::Pop(); // field

    }

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

// CPbk2ContactMerge::FindMatch

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

//    

TBool CPbk2ContactMerge::FindMatch( const MVPbkBaseContactField& aField, 

        MVPbkStoreContact& aContactTo )

    {

    TBool result = EFalse;

    MVPbkStoreContactFieldCollection& fields = aContactTo.Fields();

    const TInt count = fields.FieldCount();

    // Check if any of the email fields contains a same email address

    if ( iEMailSelector->IsFieldIncluded( aField ) )

        {

        for ( TInt i = 0 ; i < count && !result; ++i )

            {

            MVPbkStoreContactField& field = fields.FieldAt( i );

            if ( iEMailSelector->IsFieldIncluded( field ) )

                {

                result = CompareData( aField.FieldData(), 

                    field.FieldData() );

                }

            }    

        }

    // Check if any of the number fields contains a same number

    else if ( iNumberSelector->IsFieldIncluded( aField ) )

        {

        for ( TInt i = 0 ; i < count && !result; ++i )

            {

            MVPbkStoreContactField& field = fields.FieldAt( i );

            if ( iNumberSelector->IsFieldIncluded( field ) )

                {

                result = CompareData( aField.FieldData(), 

                    field.FieldData() );

                }

            }    

        }

    // Check if there is a same type of field and if found, compare the data

    else

        {

        const MVPbkFieldType* type = aField.BestMatchingFieldType();

        if ( type )

            {

            // If iterator creation fails we cannot make comparison and 

            // the result is false.

            TRAP_IGNORE(

                {

                CVPbkBaseContactFieldTypeIterator* iter = 

                    CVPbkBaseContactFieldTypeIterator::NewLC( *type, fields );

                while ( iter->HasNext() && !result )

                    {

                    const MVPbkBaseContactField* field = iter->Next();

                    result = CompareData( aField.FieldData(), field->FieldData() );

                    }

                CleanupStack::PopAndDestroy( iter );                

                });

            }

        }

    return result;

    }

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

// CPbk2ContactMerge::CompareTextData

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

//        

TBool CPbk2ContactMerge::CompareData( const MVPbkContactFieldData& aData1,

        const MVPbkContactFieldData& aData2 )

    {

    TBool result = EFalse;

    TVPbkFieldStorageType dataType = aData1.DataType();

    if ( dataType == aData2.DataType() )

        {

        if ( dataType == EVPbkFieldStorageTypeText )

            {

            result = CompareTextData( 

                MVPbkContactFieldTextData::Cast( aData1 ),

                MVPbkContactFieldTextData::Cast( aData2 ) );

            }

        else if ( dataType == EVPbkFieldStorageTypeBinary )

            {

            result = CompareBinaryData( 

                MVPbkContactFieldBinaryData::Cast( aData1 ),

                MVPbkContactFieldBinaryData::Cast( aData2 ) );

            }

        else if ( dataType == EVPbkFieldStorageTypeDateTime )

            {

            result = CompareDateTimeData( 

                MVPbkContactFieldDateTimeData::Cast( aData1 ),

                MVPbkContactFieldDateTimeData::Cast( aData2 ) );

            }

        }

    return result;

    }

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

// CPbk2ContactMerge::CompareTextData

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

//        

TBool CPbk2ContactMerge::CompareTextData( 

        const MVPbkContactFieldTextData& aData1, 

        const MVPbkContactFieldTextData& aData2)

    {

    return aData1.Text().CompareF( aData2.Text() ) == 0;

    }

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

// CPbk2ContactMerge::CompareBinaryData

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

//            

TBool CPbk2ContactMerge::CompareBinaryData( 

        const MVPbkContactFieldBinaryData& aData1, 

        const MVPbkContactFieldBinaryData& aData2 )

    {

    return aData1.BinaryData().Compare( aData2.BinaryData() ) == 0;

    }

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

// CPbk2ContactMerge::CompareDateTimeData

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

//            

TBool CPbk2ContactMerge::CompareDateTimeData( 

        const MVPbkContactFieldDateTimeData& aData1, 

        const MVPbkContactFieldDateTimeData& aData2 )

    {

    return aData1.DateTime() == aData2.DateTime();

    }