/*

* Copyright (c) 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:  ?Description

 *

*/

#include <liwcommon.h>

#include <liwvariant.h>

#include <s32mem.h>

#include <escapeutils.h>

#include "cpactiondatacache.h"

#include "cpglobals.h"

using namespace LIW;

_LIT8(KCachedMap, "cached_map");

static const int KMaxCacheItems = 18; 

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

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

// 

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

//

CCPActionDataCache* CCPActionDataCache::NewL()

    {

    CCPActionDataCache* self = CCPActionDataCache::NewLC();

    CleanupStack::Pop(self);

    return self;

    }

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

// 

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

//

CCPActionDataCache* CCPActionDataCache::NewLC()

    {

    CCPActionDataCache* self = new (ELeave) CCPActionDataCache;

    CleanupStack::PushL(self);

    self->ConstructL();

    return self;

    }

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

// 

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

//

void CCPActionDataCache::ConstructL( )

    {

    iInternalList = CLiwDefaultList::NewL();

    }

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

// 

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

//

CCPActionDataCache::CCPActionDataCache()

    {

    }

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

// 

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

//

CCPActionDataCache::~CCPActionDataCache()

    {

    if (iInternalList)

        {

        iInternalList->Close();

        }

    }

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

// 

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

//

void CCPActionDataCache::HandleCacheRemoveL(const CLiwMap* aMap)

    {

    TInt id = FindL(aMap);

    if (id != KErrNotFound)

        {

        iInternalList->Remove(id);

        }

    }

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

// 

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

//

void CCPActionDataCache::AppendL( const CLiwGenericParamList* aParamList)

    {

    const TLiwGenericParam* param;

    TInt pos( 0);

    param = aParamList->FindFirst( pos, KListMap );

    if (param && param->Value().TypeId() == EVariantTypeMap)

        {

        const CLiwMap* inputMap = param->Value().AsMap();

        CLiwDefaultMap* map = CLiwDefaultMap::NewLC();

        CopyVariantL(KType, inputMap, map);

        CopyVariantL(KId, inputMap, map);

        CopyVariantL(KPublisherId, inputMap, map);

        CopyVariantL(KContentType, inputMap, map);

        CopyVariantL(KContentId, inputMap, map);

        map->InsertL(KCachedMap, TLiwVariant(inputMap));

        iInternalList->AppendL(TLiwVariant(map));

        CleanupStack::PopAndDestroy(map);

        if (iInternalList->Count() > KMaxCacheItems)

            {

            iInternalList->Remove(0);

            }

        }

    }

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

// 

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

//

void CCPActionDataCache::AppendEmptyL( const CLiwMap* aIdsMap )

    {

    CLiwDefaultMap* map = CLiwDefaultMap::NewLC();

    CopyVariantL(KType, aIdsMap, map);

    CopyVariantL(KId, aIdsMap, map);

    CopyVariantL(KPublisherId, aIdsMap, map);

    CopyVariantL(KContentType, aIdsMap, map);

    CopyVariantL(KContentId, aIdsMap, map);

    iInternalList->AppendL(TLiwVariant(map));

    CleanupStack::PopAndDestroy(map);

    }

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

// 

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

//

TBool CCPActionDataCache::IsCacheableL(const CLiwMap* aMap)

    {

    TBool result(EFalse);

    TLiwVariant value;

    value.PushL();

    if (aMap->FindL(KId, value) && value.AsTInt32() > 0)

        {

        result = ETrue;

        }

    else if (IsSpecifiedL(aMap, KPublisherId) && IsSpecifiedL(aMap,

            KContentType) && IsSpecifiedL(aMap, KContentId))

        {

        result = ETrue;

        }

    CleanupStack::PopAndDestroy(&value);

    return result;

    }

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

// 

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

//

TBool CCPActionDataCache::ExistL(const CLiwMap* aMap)

    {

    TBool result(EFalse);

    if (FindL(aMap) != KErrNotFound)

        {

        result = ETrue;

        }

    return result;

    }

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

// 

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

//

void CCPActionDataCache::GetL(const CLiwMap* aMap,

        CLiwGenericParamList* aParamList)

    {

    TInt id = FindL(aMap);

    if (id != KErrNotFound)

        {

        TLiwVariant value;

        value.PushL();

        iInternalList->AtL(id, value);

        const CLiwMap* map = value.AsMap();

        if (map->FindL(KCachedMap, value))

            {

            CLiwDefaultMap* outMap = CLiwDefaultMap::NewLC();

            value.Get(*outMap);

            TLiwGenericParam genericParam(KListMap, TLiwVariant(outMap));

            aParamList->AppendL(genericParam);

            CleanupStack::PopAndDestroy(outMap);

            }

        CleanupStack::PopAndDestroy(&value);

        }

    }

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

// 

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

//

TBool CCPActionDataCache::MatchL(const CLiwMap* aCachedMap,

        const CLiwMap* aInputMap)

    {

    TBool idMatch(EFalse);

    TLiwVariant l, r;

    l.PushL();

    r.PushL();

    if (TypesMatchL(aCachedMap,aInputMap))

        {

        if (aCachedMap->FindL(KId, l) && aInputMap->FindL(KId, r) && l.AsTInt32()

                == r.AsTInt32())

            {

            idMatch = ETrue;

            }

        if (!idMatch)

            {

            if (MatchL(aCachedMap, aInputMap, KPublisherId) && MatchL(aCachedMap,

                    aInputMap, KContentType) && MatchL(aCachedMap, aInputMap,

                    KContentId))

                {

                idMatch = ETrue;

                }

            }

        }

    CleanupStack::PopAndDestroy(&r);

    CleanupStack::PopAndDestroy(&l);

    return idMatch;

    }

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

// 

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

//

TBool CCPActionDataCache::TypesMatchL(const CLiwMap* aCachedMap,

        const CLiwMap* aInputMap)

    {

    TBool typesMatch(EFalse);

    TLiwVariant cacheVariant;

    TLiwVariant inputVariant;

    cacheVariant.PushL();

    inputVariant.PushL();

    if (aCachedMap->FindL(KType, cacheVariant) && aInputMap->FindL(KType,

            inputVariant))

        {

        RBuf typeCache;

        RBuf typeInput;

        CleanupClosePushL(typeCache);

        CleanupClosePushL(typeInput);

        ExtractRBufL(cacheVariant, typeCache);

        ExtractRBufL(inputVariant, typeInput);

        if (typeCache.Compare(typeInput)==0)

            {

            typesMatch = ETrue;

            }

        CleanupStack::PopAndDestroy( &typeInput );

        CleanupStack::PopAndDestroy( &typeCache );

        }

    CleanupStack::PopAndDestroy(&inputVariant);

    CleanupStack::PopAndDestroy(&cacheVariant);

    return typesMatch;

    }

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

// 

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

//

void CCPActionDataCache::ExtractRBufL(const TLiwVariant& aVariant, RBuf& aBuf)

    {

    TPtrC type( KNullDesC );

    if( !aVariant.Get( type ) )

        {

        TPtrC8 type8( KNullDesC8 );

        if( !aVariant.Get( type8 ) )

            {

            User::Leave( KErrBadName );

            }

        aBuf.Assign( EscapeUtils::ConvertToUnicodeFromUtf8L( type8 ) );

        }

    else

        {

        aBuf.CreateL( type );

        }

    }

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

// 

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

//

TBool CCPActionDataCache::MatchL(const CLiwMap* aLeft, const CLiwMap* aRight,

        const TDesC8& aKey)

    {

    TBool match(EFalse);

    TLiwVariant l, r;

    l.PushL();

    r.PushL();

    if (aLeft->FindL(aKey, l) && aRight->FindL(aKey, r)

            && !l.AsDes().Compare(r.AsDes()))

        {

        match = ETrue;

        }

    CleanupStack::PopAndDestroy(&r);

    CleanupStack::PopAndDestroy(&l);

    return match;

    }

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

// 

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

//

TBool CCPActionDataCache::IsSpecifiedL(const CLiwMap* aMap,

        const TDesC8& aKey)

    {

    TBool result(EFalse);

    TLiwVariant value;

    value.PushL();

    if (aMap->FindL(aKey, value) && value.AsDes().Compare(KNullDesC) != 0

            && value.AsDes().Compare(KAll) != 0)

        {

        result = ETrue;

        }

    CleanupStack::PopAndDestroy(&value);

    return result;

    }

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

// 

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

//

TInt CCPActionDataCache::FindL(const CLiwMap* aKey)

    {

    TInt result(KErrNotFound);

    TLiwVariant value;

    value.PushL();

    for (TInt i = 0; i < iInternalList->Count(); i++)

        {

        iInternalList->AtL(i, value);

        if (MatchL(value.AsMap(), aKey))

            {

            result = i;

            break;

            }

        }

    CleanupStack::PopAndDestroy(&value);

    return result;

    }

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

//

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

//

void CCPActionDataCache::CopyVariantL(const TDesC8& aKey,

        const CLiwMap* aInMap, CLiwDefaultMap* aOutMap)

    {

    //TODO: method exist also in data manager - should be refactored

    TLiwVariant variant;

    variant.PushL();

    if (aInMap->FindL(aKey, variant))

        {

        aOutMap->InsertL(aKey, variant);

        }

    CleanupStack::PopAndDestroy(&variant);

    }