/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "cnttransformavatar.h"
#include "cntmodelextuids.h"

QList<CContactItemField *> CntTransformAvatar::transformDetailL(const QContactDetail &detail)
{
    if(detail.definitionName() != QContactAvatar::DefinitionName)
        User::Leave(KErrArgument);

    QList<CContactItemField *> fieldList;

    //cast to avatar
    const QContactAvatar &avatar(static_cast<const QContactAvatar&>(detail));

    //create new field
    QUrl avatarUrl(avatar.imageUrl());
    QString urlString;
    if (avatarUrl.scheme() == QLatin1String("file")) {
        urlString = avatarUrl.toLocalFile();
        urlString.replace("/", "\\");  // Must be stored with backslashes in Symbian
    } else {
        urlString = avatarUrl.toString();
    }
    TPtrC fieldText(reinterpret_cast<const TUint16*>(urlString.utf16()));

    //copy filename and replace slash with a backslash
    TFileName filename;
    for(TInt i(0); i < fieldText.Length(); ++i) {
        if(i >= filename.MaxLength())
            User::Leave(KErrTooBig);
        if(fieldText[i] == '/') {
            filename.Append('\\');
        } else {
            filename.Append(fieldText[i]);
        }
    }

    if(filename.Length()) {
        TUid uid(KUidContactFieldCodImage);

        CContactItemField* newField = CContactItemField::NewLC(KStorageTypeText, uid);

        newField->SetMapping(KUidContactFieldVCardMapUnknown);
        newField->TextStorage()->SetTextL(filename);

        fieldList.append(newField);
        CleanupStack::Pop(newField);
    }

    return fieldList;
}

QContactDetail *CntTransformAvatar::transformItemField(const CContactItemField& field, const QContact &contact)
{
    Q_UNUSED(contact);
    QContactAvatar *avatar = new QContactAvatar();

    if (field.ContentType().ContainsFieldType(KUidContactFieldCodImage)) {
        CContactTextField* storage = field.TextStorage();
        QString avatarString = QString::fromUtf16(storage->Text().Ptr(), storage->Text().Length());
        avatar->setImageUrl(QUrl::fromUserInput(avatarString));
    }

    return avatar;
}

bool CntTransformAvatar::supportsDetail(QString detailName) const
{
    bool ret = false;
    if (detailName == QContactAvatar::DefinitionName) {
        ret = true;
    }
    return ret;
}

QList<TUid> CntTransformAvatar::supportedFields() const
{
    return QList<TUid>()
        << KUidContactFieldCodImage;
}

QList<TUid> CntTransformAvatar::supportedSortingFieldTypes(QString /*detailFieldName*/) const
{
    // Sorting not supported
    return QList<TUid>();
}


/*!
 * Checks whether the subtype is supported
 *
 * \a subType The subtype to be checked
 * \return True if this subtype is supported
 */
bool CntTransformAvatar::supportsSubType(const QString& /*subType*/) const
{
    return false;
}

/*!
 * Returns the filed id corresponding to a field
 *
 * \a fieldName The name of the supported field
 * \return fieldId for the fieldName, 0  if not supported
 */
quint32 CntTransformAvatar::getIdForField(const QString& fieldName) const
{
    if (QContactAvatar::FieldImageUrl  == fieldName)
        return 0;
    else
        return 0;
}

/*!
 * Modifies the detail definitions. The default detail definitions are
 * queried from QContactManagerEngine::schemaDefinitions and then modified
 * with this function in the transform leaf classes.
 *
 * \a definitions The detail definitions to modify.
 * \a contactType The contact type the definitions apply for.
 */
void CntTransformAvatar::detailDefinitions(QMap<QString, QContactDetailDefinition> &definitions, const QString& contactType) const
{
    Q_UNUSED(contactType);

    if(definitions.contains(QContactAvatar::DefinitionName)) {
        QContactDetailDefinition d = definitions.value(QContactAvatar::DefinitionName);
        QMap<QString, QContactDetailFieldDefinition> fields = d.fields();

        // We only support imageUrl
        fields.remove(QContactAvatar::FieldVideoUrl);
        // Context not supported in symbian back-end, remove
        fields.remove(QContactAvatar::FieldContext);

        d.setFields(fields);
        d.setUnique(true);

        // Replace original definitions
        definitions.insert(d.name(), d);
    }
}
