/****************************************************************************

**

** Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team.

** All rights reserved.

**

** Portion Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

**

** 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.

**

****************************************************************************/

#include "qdocument_p.h"

#include "qreader_p.h"

#include "qclucene_global_p.h"

#include <CLucene.h>

#include <CLucene/util/Reader.h>

#include <CLucene/document/Document.h>

QT_BEGIN_NAMESPACE

QCLuceneDocumentPrivate::QCLuceneDocumentPrivate()

    : QSharedData()

{

    document = 0;

    deleteCLuceneDocument = true;

}

QCLuceneDocumentPrivate::QCLuceneDocumentPrivate(const QCLuceneDocumentPrivate &other)

    : QSharedData()

{

    document = _CL_POINTER(other.document);

    deleteCLuceneDocument = other.deleteCLuceneDocument;

}

QCLuceneDocumentPrivate::~QCLuceneDocumentPrivate()

{

    if (deleteCLuceneDocument)

        _CLDECDELETE(document);

}

QCLuceneDocument::QCLuceneDocument()

    : d(new QCLuceneDocumentPrivate())

{

    // nothing todo

    d->document = new lucene::document::Document();

}

QCLuceneDocument::~QCLuceneDocument()

{

    qDeleteAll(fieldList);

    fieldList.clear();

}

void QCLuceneDocument::add(QCLuceneField *field)

{

    field->d->deleteCLuceneField = false;

    d->document->add(*field->d->field);

    fieldList.append(field);

}

QCLuceneField* QCLuceneDocument::getField(const QString &name) const

{

    QCLuceneField* field = 0;

    foreach (field, fieldList) {

        if (field->name() == name && field->d->field != 0)

            return field;

    }

    field = 0;

    TCHAR *fieldName = QStringToTChar(name);

    lucene::document::Field *f = d->document->getField(fieldName);

    if (f) {

        field = new QCLuceneField();

        field->d->field = f;

        fieldList.append(field);

        field->d->deleteCLuceneField = false;

        lucene::util::Reader *r = f->readerValue();

        if (r) {

            field->reader->d->reader = r;

            field->reader->d->deleteCLuceneReader = false;

        }

    }

    delete [] fieldName;

    return field;

}

QString QCLuceneDocument::get(const QString &name) const

{

    QCLuceneField* field = getField(name);

    if (field)

        return field->stringValue();

    return QString();

}

QString QCLuceneDocument::toString() const

{

    return TCharToQString(d->document->toString());

}

void QCLuceneDocument::setBoost(qreal boost)

{

    d->document->setBoost(qreal(boost));

}

qreal QCLuceneDocument::getBoost() const

{

    return qreal(d->document->getBoost());

}

void QCLuceneDocument::removeField(const QString &name)

{

    TCHAR *fieldName = QStringToTChar(name);

    d->document->removeField(fieldName);

    delete [] fieldName;

    QList<QCLuceneField*> tmp;

    lucene::document::DocumentFieldEnumeration *dfe = d->document->fields();

    while (dfe->hasMoreElements()) {

        const lucene::document::Field* f = dfe->nextElement();

        foreach (QCLuceneField* field, fieldList) {

            if (f == field->d->field) {

                tmp.append(field);

                break;

            }

        }

    }

    _CLDELETE(dfe);

    fieldList = tmp;

}

void QCLuceneDocument::removeFields(const QString &name)

{

    for (qint32 i = fieldList.count() -1; i >= 0; --i) {

        QCLuceneField* field = fieldList.at(i);

        if (field->name() == name)

            delete fieldList.takeAt(i);

    }

    TCHAR *fieldName = QStringToTChar(name);

    d->document->removeFields(fieldName);

    delete [] fieldName;

}

QStringList QCLuceneDocument::getValues(const QString &name) const

{

    TCHAR *fieldName = QStringToTChar(name);

    TCHAR **values = d->document->getValues(fieldName);

    QStringList retValue;

    if (values) {

        for (qint32 i = 0; 0 != values[i]; ++i) {

            retValue.append(TCharToQString((const TCHAR*)values[i]));

            delete [] values[i]; values[i] = 0;

        }

        delete values;

    }

    delete [] fieldName;

    return retValue;

}

void QCLuceneDocument::clear()

{

    d->document->clear();

    qDeleteAll(fieldList);

    fieldList.clear();

}

QT_END_NAMESPACE