/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include "SchXMLTools.hxx"

#include <rtl/ustrbuf.hxx>
#include <xmloff/xmluconv.hxx>
#include <xmloff/xmlement.hxx>
#include <xmloff/xmlimppr.hxx>
#include <xmloff/prstylei.hxx>
#include <xmloff/xmlprmap.hxx>
#include <xmloff/xmlexp.hxx>
#include <xmloff/xmlnamespace.hxx>
#include <xmloff/xmlmetai.hxx>
#include <xmloff/maptype.hxx>

#include <com/sun/star/beans/PropertyAttribute.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/chart2/data/LabeledDataSequence.hpp>
#include <com/sun/star/chart2/data/XDataProvider.hpp>
#include <com/sun/star/chart2/data/XDataReceiver.hpp>
#include <com/sun/star/chart2/data/XRangeXMLConversion.hpp>
#include <com/sun/star/chart2/data/XPivotTableDataProvider.hpp>
#include <com/sun/star/chart2/XChartDocument.hpp>
#include <com/sun/star/chart2/XCoordinateSystemContainer.hpp>
#include <com/sun/star/container/XChild.hpp>
#include <com/sun/star/document/XDocumentProperties.hpp>
#include <com/sun/star/document/XDocumentPropertiesSupplier.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/xml/sax/XDocumentHandler.hpp>

#include <comphelper/processfactory.hxx>
#include <comphelper/diagnose_ex.hxx>
#include <sal/log.hxx>
#include <o3tl/string_view.hxx>
#include <algorithm>
#include <map>

using namespace com::sun::star;
using namespace ::xmloff::token;

using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::Sequence;

namespace
{

OUString lcl_getGeneratorFromModel( const uno::Reference< frame::XModel >& xChartModel )
{
    OUString aGenerator;
    uno::Reference< document::XDocumentPropertiesSupplier> xChartDocumentPropertiesSupplier( xChartModel, uno::UNO_QUERY );
    if( xChartDocumentPropertiesSupplier.is() )
    {
        uno::Reference< document::XDocumentProperties > xChartDocumentProperties(
            xChartDocumentPropertiesSupplier->getDocumentProperties());
        if( xChartDocumentProperties.is() )
            aGenerator =  xChartDocumentProperties->getGenerator();
    }
    return aGenerator;
}

OUString lcl_getGeneratorFromModelOrItsParent( const uno::Reference< frame::XModel >& xChartModel )
{
    OUString aGenerator( lcl_getGeneratorFromModel(xChartModel) );
    if( aGenerator.isEmpty() ) //try to get the missing info from the parent document
    {
        uno::Reference< container::XChild > xChild( xChartModel, uno::UNO_QUERY );
        if( xChild.is() )
            aGenerator = lcl_getGeneratorFromModel( uno::Reference< frame::XModel >( xChild->getParent(), uno::UNO_QUERY) );
    }
    return aGenerator;
}

sal_Int32 lcl_getBuildIDFromGenerator( std::u16string_view rGenerator )
{
    //returns -1 if nothing found
    sal_Int32 nBuildId = -1;
    static constexpr OUStringLiteral sBuildCompare(  u"$Build-"  );
    size_t nBegin = rGenerator.find( sBuildCompare );
    if( nBegin != std::u16string_view::npos )
    {
        std::u16string_view sBuildId = rGenerator.substr( nBegin + sBuildCompare.getLength() );
        nBuildId = o3tl::toInt32(sBuildId);
    }
    return nBuildId;
}

OUString lcl_ConvertRange( const OUString & rRange, const Reference< chart2::data::XDataProvider >& xDataProvider )
{
    OUString aResult = rRange;
    Reference< chart2::data::XRangeXMLConversion > xRangeConversion( xDataProvider, uno::UNO_QUERY );
    if( xRangeConversion.is())
        aResult = xRangeConversion->convertRangeFromXML( rRange );
    return aResult;
}

Reference< chart2::data::XDataSequence > lcl_createNewSequenceFromCachedXMLRange( const Reference< chart2::data::XDataSequence >& xSeq, const Reference< chart2::data::XDataProvider >& xDataProvider )
{
    Reference< chart2::data::XDataSequence > xRet;
    OUString aRange;
    if( xSeq.is() && SchXMLTools::getXMLRangePropertyFromDataSequence( xSeq, aRange, /* bClearProp = */ true ) )
    {
        xRet.set( xDataProvider->createDataSequenceByRangeRepresentation(
            lcl_ConvertRange( aRange, xDataProvider )) );
        SchXMLTools::copyProperties( Reference< beans::XPropertySet >( xSeq, uno::UNO_QUERY ),
            Reference< beans::XPropertySet >( xRet, uno::UNO_QUERY ));
    }
    return xRet;
}

} // anonymous namespace

namespace SchXMLTools
{

const SvXMLEnumMapEntry<SchXMLChartTypeEnum> aXMLChartClassMap[] =
{
    { XML_LINE,         XML_CHART_CLASS_LINE    },
    { XML_AREA,         XML_CHART_CLASS_AREA    },
    { XML_CIRCLE,       XML_CHART_CLASS_CIRCLE  },
    { XML_RING,         XML_CHART_CLASS_RING    },
    { XML_SCATTER,      XML_CHART_CLASS_SCATTER },
    { XML_RADAR,        XML_CHART_CLASS_RADAR   },
    { XML_FILLED_RADAR, XML_CHART_CLASS_FILLED_RADAR },
    { XML_BAR,          XML_CHART_CLASS_BAR     },
    { XML_STOCK,        XML_CHART_CLASS_STOCK   },
    { XML_BUBBLE,       XML_CHART_CLASS_BUBBLE  },
    { XML_SURFACE,      XML_CHART_CLASS_BAR     }, //@todo change this if a surface chart is available
    { XML_ADD_IN,       XML_CHART_CLASS_ADDIN   },
    { XML_TOKEN_INVALID, XML_CHART_CLASS_UNKNOWN }
};

SchXMLChartTypeEnum GetChartTypeEnum( std::u16string_view rClassName )
{
    SchXMLChartTypeEnum nEnumVal = XML_CHART_CLASS_UNKNOWN;
    SvXMLUnitConverter::convertEnum( nEnumVal, rClassName, aXMLChartClassMap );
    return nEnumVal;
}

typedef std::map< OUString, OUString > tMakeStringStringMap;
//static
static const tMakeStringStringMap& lcl_getChartTypeNameMap()
{
    //shape property -- chart model object property
    static const tMakeStringStringMap g_aChartTypeNameMap{
        {"com.sun.star.chart.LineDiagram",
         "com.sun.star.chart2.LineChartType"},
        {"com.sun.star.chart.AreaDiagram",
         "com.sun.star.chart2.AreaChartType"},
        {"com.sun.star.chart.BarDiagram",
         "com.sun.star.chart2.ColumnChartType"},
        {"com.sun.star.chart.PieDiagram",
         "com.sun.star.chart2.PieChartType"},
        {"com.sun.star.chart.DonutDiagram",
         "com.sun.star.chart2.DonutChartType"},
        {"com.sun.star.chart.XYDiagram",
         "com.sun.star.chart2.ScatterChartType"},
        {"com.sun.star.chart.NetDiagram",
         "com.sun.star.chart2.NetChartType"},
        {"com.sun.star.chart.FilledNetDiagram",
         "com.sun.star.chart2.FilledNetChartType"},
        {"com.sun.star.chart.StockDiagram",
         "com.sun.star.chart2.CandleStickChartType"},
        {"com.sun.star.chart.BubbleDiagram",
         "com.sun.star.chart2.BubbleChartType"}};
    return g_aChartTypeNameMap;
}

OUString GetNewChartTypeName( const OUString & rOldChartTypeName )
{
    OUString aNew(rOldChartTypeName);

    const tMakeStringStringMap& rMap = lcl_getChartTypeNameMap();
    tMakeStringStringMap::const_iterator aIt( rMap.find( rOldChartTypeName ));
    if( aIt != rMap.end())
    {
        aNew = aIt->second;
    }
    return aNew;
}

OUString GetChartTypeByClassName(
    std::u16string_view rClassName, bool bUseOldNames )
{
    OUStringBuffer aResultBuffer;
    bool bInternalType = false;

    if( bUseOldNames )
        aResultBuffer.append( "com.sun.star.chart.");
    else
        aResultBuffer.append( "com.sun.star.chart2.");

    bInternalType = true;

    if( IsXMLToken( rClassName, XML_LINE ))
        aResultBuffer.append("Line");
    else if( IsXMLToken( rClassName, XML_AREA ))
        aResultBuffer.append("Area");
    else if( IsXMLToken( rClassName, XML_BAR ))
    {
        if( bUseOldNames )
            aResultBuffer.append("Bar");
        else
        {
            aResultBuffer.append("Column");
            // @todo: might be Bar
        }
    }
    else if( IsXMLToken( rClassName, XML_CIRCLE ))
        aResultBuffer.append("Pie");
    else if( IsXMLToken( rClassName, XML_RING ))
        aResultBuffer.append("Donut");
    else if( IsXMLToken( rClassName, XML_SCATTER ))
    {
        if( bUseOldNames )
            aResultBuffer.append("XY");
        else
            aResultBuffer.append("Scatter");
    }

    else if( IsXMLToken( rClassName, XML_BUBBLE ))
        aResultBuffer.append("Bubble");
    else if( IsXMLToken( rClassName, XML_RADAR ))
        aResultBuffer.append("Net");
    else if( IsXMLToken( rClassName, XML_FILLED_RADAR ))
        aResultBuffer.append("FilledNet");
    else if( IsXMLToken( rClassName, XML_STOCK ))
    {
        if( bUseOldNames )
            aResultBuffer.append("Stock");
        else
            aResultBuffer.append("CandleStick");
    }
    else if( IsXMLToken( rClassName, XML_SURFACE ))
    {
        //@todo change this if a surface chart is available
        if( bUseOldNames )
            aResultBuffer.append("Bar");
        else
            aResultBuffer.append("Column");
    }
    else
        bInternalType = false;

    if( ! bInternalType )
        return OUString();

    if( bUseOldNames )
        aResultBuffer.append("Diagram");
    else
        aResultBuffer.append("ChartType");

    return aResultBuffer.makeStringAndClear();

}

XMLTokenEnum getTokenByChartType(
    std::u16string_view rChartTypeService, bool bUseOldNames )
{
    XMLTokenEnum eResult = XML_TOKEN_INVALID;
    OUString aPrefix, aPostfix;

    if( bUseOldNames )
    {
        aPrefix = "com.sun.star.chart.";
        aPostfix = "Diagram";
    }
    else
    {
        aPrefix = "com.sun.star.chart2.";
        aPostfix = "ChartType";
    }

    if( o3tl::starts_with(rChartTypeService, aPrefix))
    {
        sal_Int32 nSkip = aPrefix.getLength();
        SAL_WARN_IF( static_cast<sal_Int32>(rChartTypeService.size()) < nSkip, "xmloff.chart", "ChartTypeService.getLength() < nSkip" );
        sal_Int32 nTypeLength = rChartTypeService.size() - nSkip - aPostfix.getLength();
        // if postfix matches and leaves a non-empty type
        if( nTypeLength > 0 && o3tl::starts_with(rChartTypeService.substr(nSkip + nTypeLength), aPostfix) )
        {
            std::u16string_view aServiceName( rChartTypeService.substr( nSkip, nTypeLength ));

            if ( aServiceName == u"Line" )
                eResult = XML_LINE;
            else if ( aServiceName == u"Area" )
                eResult = XML_AREA;
            else if( aServiceName == u"Bar" ||
                     (!bUseOldNames && aServiceName == u"Column"))
                eResult = XML_BAR;
            else if ( aServiceName == u"Pie" )
                eResult = XML_CIRCLE;
            else if ( aServiceName == u"Donut" )
                eResult = XML_RING;
            else if( (bUseOldNames && aServiceName == u"XY") ||
                     (!bUseOldNames && aServiceName == u"Scatter"))
                eResult = XML_SCATTER;
            else if ( aServiceName == u"Bubble" )
                eResult = XML_BUBBLE;
            else if ( aServiceName == u"Net" )
                eResult = XML_RADAR;
            else if ( aServiceName == u"FilledNet" )
                eResult = XML_FILLED_RADAR;
            else if( (bUseOldNames && aServiceName == u"Stock") ||
                     (!bUseOldNames && aServiceName == u"CandleStick"))
                eResult = XML_STOCK;
        }
    }

    if( eResult == XML_TOKEN_INVALID && !rChartTypeService.empty() )
        eResult = XML_ADD_IN;

    return eResult;
}

Reference< chart2::data::XLabeledDataSequence2 > GetNewLabeledDataSequence()
{
    Reference< uno::XComponentContext > xContext( comphelper::getProcessComponentContext() );
    Reference< chart2::data::XLabeledDataSequence2 > xResult = chart2::data::LabeledDataSequence::create(xContext);
    return xResult;
}

Reference< chart2::data::XDataSequence > CreateDataSequence(
        const OUString & rRange,
        const Reference< chart2::XChartDocument >& xChartDoc )
{
    Reference< chart2::data::XDataSequence > xRet;

    if( !xChartDoc.is() )
    {
        SAL_WARN("xmloff.chart", "need a chart document" );
        return xRet;
    }

    Reference< chart2::data::XDataProvider > xDataProvider( xChartDoc->getDataProvider() );
    if( !xDataProvider.is() )
    {
        SAL_WARN("xmloff.chart", "need a data provider" );
        return xRet;
    }

    bool bUseInternal = false;
    uno::Reference<beans::XPropertySet> xPropSet(xDataProvider, uno::UNO_QUERY);
    if (xPropSet.is())
    {
        try
        {
            bool bVal = false;
            uno::Any any = xPropSet->getPropertyValue("UseInternalDataProvider");
            if (any >>= bVal)
                bUseInternal = bVal;
        }
        catch (const beans::UnknownPropertyException&)
        {
            // Do nothing
        }
    }

    if (!bUseInternal)
    {
        try
        {
            xRet.set( xDataProvider->createDataSequenceByRangeRepresentation( lcl_ConvertRange( rRange, xDataProvider )));
            SchXMLTools::setXMLRangePropertyAtDataSequence( xRet, rRange );
        }
        catch( const lang::IllegalArgumentException & )
        {
            SAL_WARN("xmloff.chart", "could not create data sequence" );
        }
    }

    if( !xRet.is() && !xChartDoc->hasInternalDataProvider() && !rRange.isEmpty() )
    {
        //#i103911# switch to internal data in case the parent cannot provide the requested data
        xChartDoc->createInternalDataProvider( true /* bCloneExistingData */ );
        xDataProvider = xChartDoc->getDataProvider();
        try
        {
            xRet.set( xDataProvider->createDataSequenceByRangeRepresentation( lcl_ConvertRange( rRange, xDataProvider )));
            SchXMLTools::setXMLRangePropertyAtDataSequence( xRet, rRange );
        }
        catch( const lang::IllegalArgumentException & )
        {
            SAL_WARN("xmloff.chart", "could not create data sequence" );
        }
    }
    return xRet;
}

Reference< chart2::data::XDataSequence > CreateDataSequenceWithoutConvert(
        const OUString & rRange,
        const Reference< chart2::XChartDocument >& xChartDoc )
{
    Reference< chart2::data::XDataSequence > xRet;

    if( !xChartDoc.is() )
    {
        SAL_WARN("xmloff.chart", "need a chart document" );
        return xRet;
    }

    Reference< chart2::data::XDataProvider > xDataProvider( xChartDoc->getDataProvider() );
    if( !xDataProvider.is() )
    {
        SAL_WARN("xmloff.chart", "need a data provider" );
        return xRet;
    }

    try
    {
        xRet.set( xDataProvider->createDataSequenceByRangeRepresentation( rRange ) );
        SchXMLTools::setXMLRangePropertyAtDataSequence( xRet, rRange );
    }
    catch( const lang::IllegalArgumentException & )
    {
        SAL_WARN("xmloff.chart", "could not create data sequence" );
    }

    return xRet;
}

void CreateCategories(
    const uno::Reference< chart2::data::XDataProvider > & xDataProvider,
    const uno::Reference< chart2::XChartDocument > & xNewDoc,
    const OUString & rRangeAddress,
    sal_Int32 nCooSysIndex,
    sal_Int32 nDimensionIndex,
    tSchXMLLSequencesPerIndex * pLSequencesPerIndex )
{
    try
    {
        if( xNewDoc.is() && !rRangeAddress.isEmpty())
        {
            if( xDataProvider.is())
            {
                uno::Reference< chart2::XDiagram > xDia( xNewDoc->getFirstDiagram());
                if( !xDia.is())
                    return;

                uno::Reference< chart2::XCoordinateSystemContainer > xCooSysCnt( xDia, uno::UNO_QUERY_THROW );
                uno::Sequence< uno::Reference< chart2::XCoordinateSystem > >
                    aCooSysSeq( xCooSysCnt->getCoordinateSystems());
                if( nCooSysIndex < aCooSysSeq.getLength())
                {
                    uno::Reference< chart2::XCoordinateSystem > xCooSys( aCooSysSeq[nCooSysIndex] );
                    SAL_WARN_IF( !xCooSys.is(), "xmloff.chart", "xCooSys is NULL");
                    if( nDimensionIndex < xCooSys->getDimension() )
                    {
                        const sal_Int32 nMaxAxisIndex = xCooSys->getMaximumAxisIndexByDimension(nDimensionIndex);
                        for(sal_Int32 nI=0; nI<=nMaxAxisIndex; ++nI)
                        {
                            uno::Reference< chart2::XAxis > xAxis( xCooSys->getAxisByDimension( nDimensionIndex, nI ));
                            if( xAxis.is() )
                            {
                                chart2::ScaleData aData( xAxis->getScaleData());
                                uno::Reference< chart2::data::XLabeledDataSequence > xLabeledSeq(
                                    GetNewLabeledDataSequence(), uno::UNO_QUERY_THROW);
                                try
                                {
                                    OUString aConvertedRange( rRangeAddress );
                                    bool bRangeConverted = false;
                                    if( ! (xNewDoc->hasInternalDataProvider() && aConvertedRange == "categories"))
                                    {
                                        Reference< chart2::data::XRangeXMLConversion > xXMLConv( xDataProvider, uno::UNO_QUERY );
                                        if( xXMLConv.is())
                                        {
                                            aConvertedRange = xXMLConv->convertRangeFromXML( rRangeAddress );
                                            bRangeConverted = true;
                                        }
                                    }

                                    Reference<chart2::data::XDataSequence> xSequence;
                                    Reference<chart2::data::XPivotTableDataProvider> xPivotTableDataProvider(xDataProvider, uno::UNO_QUERY);
                                    if (xPivotTableDataProvider.is())
                                    {
                                        xSequence.set(xPivotTableDataProvider->createDataSequenceOfCategories());
                                    }
                                    else
                                    {
                                        xSequence.set(xDataProvider->createDataSequenceByRangeRepresentation(aConvertedRange));
                                        if (bRangeConverted)
                                            setXMLRangePropertyAtDataSequence(xSequence, rRangeAddress);
                                    }
                                    xLabeledSeq->setValues(xSequence);

                                }
                                catch( const lang::IllegalArgumentException & )
                                {
                                    DBG_UNHANDLED_EXCEPTION("xmloff.chart");
                                }
                                aData.Categories.set( xLabeledSeq );
                                if( pLSequencesPerIndex )
                                {
                                    // register for setting local data if external data provider is not present
                                    pLSequencesPerIndex->emplace(
                                            tSchXMLIndexWithPart( SCH_XML_CATEGORIES_INDEX, SCH_XML_PART_VALUES ), xLabeledSeq );
                                }
                                xAxis->setScaleData( aData );
                            }
                        }
                    }
                }
            }
        }
    }
    catch( uno::Exception & )
    {
        TOOLS_WARN_EXCEPTION("xmloff.chart", "Exception caught while creating Categories" );
    }
}

uno::Any getPropertyFromContext( std::u16string_view rPropertyName, const XMLPropStyleContext* pPropStyleContext, const SvXMLStylesContext* pStylesCtxt )
{
    uno::Any aRet;
    if( !pPropStyleContext || !pStylesCtxt )
        return aRet;
    const ::std::vector< XMLPropertyState >& rProperties = pPropStyleContext->GetProperties();
    const rtl::Reference< XMLPropertySetMapper >& rMapper = pStylesCtxt->GetImportPropertyMapper( pPropStyleContext->GetFamily()/*XML_STYLE_FAMILY_SCH_CHART_ID*/ )->getPropertySetMapper();
    for( const auto& rProp : rProperties )
    {
        sal_Int32 nIdx = rProp.mnIndex;
        if( nIdx == -1 )
            continue;
        OUString aPropName = rMapper->GetEntryAPIName( nIdx );
        if(rPropertyName == aPropName)
            return rProp.maValue;
    }
    return aRet;
}

void exportText( SvXMLExport& rExport, const OUString& rText, bool bConvertTabsLFs )
{
    SvXMLElementExport aPara( rExport, XML_NAMESPACE_TEXT,
                              ::xmloff::token::GetXMLToken( ::xmloff::token::XML_P ),
                              true, false );

    if( bConvertTabsLFs )
    {
        sal_Int32 nStartPos = 0;
        sal_Int32 nEndPos = rText.getLength();
        sal_Unicode cChar;

        for( sal_Int32 nPos = 0; nPos < nEndPos; nPos++ )
        {
            cChar = rText[ nPos ];
            switch( cChar )
            {
                case 0x0009:        // tabulator
                    {
                        if( nPos > nStartPos )
                            rExport.GetDocHandler()->characters( rText.copy( nStartPos, (nPos - nStartPos)) );
                        nStartPos = nPos + 1;

                        SvXMLElementExport aElem( rExport, XML_NAMESPACE_TEXT,
                                                  ::xmloff::token::GetXMLToken( ::xmloff::token::XML_TAB_STOP ),
                                                  false, false );
                    }
                    break;

                case 0x000A:        // linefeed
                    {
                        if( nPos > nStartPos )
                            rExport.GetDocHandler()->characters( rText.copy( nStartPos, (nPos - nStartPos)) );
                        nStartPos = nPos + 1;

                        SvXMLElementExport aElem( rExport, XML_NAMESPACE_TEXT,
                                                  ::xmloff::token::GetXMLToken( ::xmloff::token::XML_LINE_BREAK ),
                                                  false, false );
                    }
                    break;
            }
        }
        if( nEndPos > nStartPos )
        {
            if( nStartPos == 0 )
                rExport.GetDocHandler()->characters( rText );
            else
                rExport.GetDocHandler()->characters( rText.copy( nStartPos, (nEndPos - nStartPos)) );
        }
    }
    else // do not convert tabs and linefeeds (eg for numbers coming from unit converter)
    {
        rExport.GetDocHandler()->characters( rText );
    }
}

void exportRangeToSomewhere( SvXMLExport& rExport, const OUString& rValue )
{
    //with issue #i366# and CWS chart20 ranges for error bars were introduced
    //to keep them during copy paste from calc to impress for example it
    //was necessary to introduce a mapping between the used ranges within calc and the data written to the local table
    //this is why we write this ranges here

    //#i113950# first the range was exported to attribute text:id, but that attribute does not allow arbitrary strings anymore within ODF 1.2
    //as an alternative the range info is now saved into the description at an empty group element (not very nice, but ODF conform)

    const SvtSaveOptions::ODFSaneDefaultVersion nCurrentODFVersion(
            rExport.getSaneDefaultVersion());
    if (nCurrentODFVersion == SvtSaveOptions::ODFSVER_010 || nCurrentODFVersion == SvtSaveOptions::ODFSVER_011)
        return;//svg:desc is not allowed at draw:g in ODF1.0; but as the ranges for error bars are anyhow not allowed within ODF1.0 nor ODF1.1 we do not need the information

    SvXMLElementExport aEmptyShapeGroup( rExport, XML_NAMESPACE_DRAW,
                              ::xmloff::token::GetXMLToken( ::xmloff::token::XML_G ),
                              true, false );
    SvXMLElementExport aDescription( rExport, XML_NAMESPACE_SVG,
                              ::xmloff::token::GetXMLToken( ::xmloff::token::XML_DESC ),
                              true, false );
    rExport.GetDocHandler()->characters( rValue );
}

void setXMLRangePropertyAtDataSequence(
    const Reference< chart2::data::XDataSequence > & xDataSequence,
    const OUString & rXMLRange )
{
    if( !xDataSequence.is())
        return;
    try
    {
        static constexpr OUStringLiteral aXMLRangePropName(  u"CachedXMLRange" );
        Reference< beans::XPropertySet > xProp( xDataSequence, uno::UNO_QUERY_THROW );
        Reference< beans::XPropertySetInfo > xInfo( xProp->getPropertySetInfo());
        if( xInfo.is() && xInfo->hasPropertyByName( aXMLRangePropName ))
            xProp->setPropertyValue( aXMLRangePropName, uno::Any( rXMLRange ));
    }
    catch( const uno::Exception & )
    {
        DBG_UNHANDLED_EXCEPTION("xmloff.chart");
    }
}

bool getXMLRangePropertyFromDataSequence(
    const Reference< chart2::data::XDataSequence > & xDataSequence,
    OUString & rOutXMLRange,
    bool bClearProp /* = false */)
{
    bool bResult = false;
    if( xDataSequence.is())
    {
        try
        {
            static constexpr OUStringLiteral aXMLRangePropName(  u"CachedXMLRange" );
            Reference< beans::XPropertySet > xProp( xDataSequence, uno::UNO_QUERY_THROW );
            Reference< beans::XPropertySetInfo > xInfo( xProp->getPropertySetInfo());
            bResult =
                ( xInfo.is() && xInfo->hasPropertyByName( aXMLRangePropName ) &&
                  ( xProp->getPropertyValue( aXMLRangePropName ) >>= rOutXMLRange ) &&
                  !rOutXMLRange.isEmpty());
            // clear the property after usage
            if( bClearProp && bResult )
                xProp->setPropertyValue( aXMLRangePropName, uno::Any( OUString()));
        }
        catch( const uno::Exception & )
        {
            DBG_UNHANDLED_EXCEPTION("xmloff.chart");
        }
    }
    return bResult;
}

void copyProperties(
    const Reference< beans::XPropertySet > & xSource,
    const Reference< beans::XPropertySet > & xDestination )
{
    if( ! (xSource.is() && xDestination.is()) )
        return;

    try
    {
        Reference< beans::XPropertySetInfo > xSrcInfo( xSource->getPropertySetInfo(), uno::UNO_SET_THROW );
        Reference< beans::XPropertySetInfo > xDestInfo( xDestination->getPropertySetInfo(), uno::UNO_SET_THROW );
        const Sequence< beans::Property > aProperties( xSrcInfo->getProperties());
        for( const auto& rProperty : aProperties )
        {
            OUString aName( rProperty.Name);
            if( xDestInfo->hasPropertyByName( aName ))
            {
                beans::Property aProp( xDestInfo->getPropertyByName( aName ));
                if( (aProp.Attributes & beans::PropertyAttribute::READONLY) == 0 )
                    xDestination->setPropertyValue(
                        aName, xSource->getPropertyValue( aName ));
            }
        }
    }
    catch( const uno::Exception & )
    {
        SAL_WARN("xmloff.chart", "Copying property sets failed!" );
    }
}

bool switchBackToDataProviderFromParent( const Reference< chart2::XChartDocument >& xChartDoc, const tSchXMLLSequencesPerIndex & rLSequencesPerIndex )
{
    //return whether the switch is successful
    if( !xChartDoc.is() || !xChartDoc->hasInternalDataProvider() )
        return false;
    Reference< chart2::data::XDataProvider > xDataProviderFromParent( SchXMLTools::getDataProviderFromParent( xChartDoc ) );
    if( !xDataProviderFromParent.is() )
        return false;
    uno::Reference< chart2::data::XDataReceiver > xDataReceiver( xChartDoc, uno::UNO_QUERY );
    if( !xDataReceiver.is() )
        return false;

    xDataReceiver->attachDataProvider( xDataProviderFromParent );

    for( const auto& rLSeq : rLSequencesPerIndex )
    {
        Reference< chart2::data::XLabeledDataSequence > xLabeledSeq( rLSeq.second );
        if( !xLabeledSeq.is() )
            continue;
        Reference< chart2::data::XDataSequence > xNewSeq;
        xNewSeq = lcl_createNewSequenceFromCachedXMLRange( xLabeledSeq->getValues(), xDataProviderFromParent );
        if( xNewSeq.is() )
            xLabeledSeq->setValues( xNewSeq );
        xNewSeq = lcl_createNewSequenceFromCachedXMLRange( xLabeledSeq->getLabel(), xDataProviderFromParent );
        if( xNewSeq.is() )
            xLabeledSeq->setLabel( xNewSeq );
    }
    return true;
}

void setBuildIDAtImportInfo( const uno::Reference< frame::XModel >& xModel, const Reference< beans::XPropertySet >& xImportInfo )
{
    OUString aGenerator( lcl_getGeneratorFromModelOrItsParent(xModel) );
    if( !aGenerator.isEmpty() )
        SvXMLMetaDocumentContext::setBuildId( aGenerator, xImportInfo );
}

bool isDocumentGeneratedWithOpenOfficeOlderThan3_3( const uno::Reference< frame::XModel >& xChartModel )
{
    bool bResult = isDocumentGeneratedWithOpenOfficeOlderThan3_0( xChartModel );
    if( !bResult )
    {
        OUString aGenerator( lcl_getGeneratorFromModel(xChartModel) );
        if( aGenerator.indexOf( "OpenOffice.org_project/3" ) != -1 )
        {
            if( aGenerator.indexOf( "OpenOffice.org_project/300m" ) != -1 )
            {
                sal_Int32 nBuilId = lcl_getBuildIDFromGenerator( lcl_getGeneratorFromModel(xChartModel) );
                if( nBuilId>0 && nBuilId<9491 ) //9491 is build id of dev300m76
                    bResult= true;
            }
            else if( aGenerator.indexOf( "OpenOffice.org_project/310m" ) != -1 )
                bResult= true;
            else if( aGenerator.indexOf( "OpenOffice.org_project/320m" ) != -1 )
                bResult= true;
        }
    }
    return bResult;
}

bool isDocumentGeneratedWithOpenOfficeOlderThan3_0( const uno::Reference< frame::XModel >& xChartModel )
{
    bool bResult = isDocumentGeneratedWithOpenOfficeOlderThan2_3( xChartModel );
    if( !bResult )
    {
        OUString aGenerator( lcl_getGeneratorFromModel(xChartModel) );
        if( aGenerator.indexOf( "OpenOffice.org_project/680m" ) != -1 )
            bResult= true;
    }
    return bResult;
}

bool isDocumentGeneratedWithOpenOfficeOlderThan2_4( const uno::Reference< frame::XModel >& xChartModel )
{
    if( isDocumentGeneratedWithOpenOfficeOlderThan2_3( xChartModel ) )
        return true;

    if( isDocumentGeneratedWithOpenOfficeOlderThan3_0( xChartModel ) )
    {
        sal_Int32 nBuilId = lcl_getBuildIDFromGenerator( lcl_getGeneratorFromModel(xChartModel) );
        if( nBuilId>0 && nBuilId<=9238 ) //9238 is build id of OpenOffice.org 2.3.1
            return true;
    }
    return false;
}

bool isDocumentGeneratedWithOpenOfficeOlderThan2_3( const uno::Reference< frame::XModel >& xChartModel )
{
    bool bResult = false;
    OUString aGenerator( lcl_getGeneratorFromModel(xChartModel) );
    //if there is a meta stream at the chart object it was not written with an older OpenOffice version < 2.3
    if( aGenerator.isEmpty() )
    {
        //if there is no meta stream at the chart object we need to check whether the parent document is OpenOffice at all
        uno::Reference< container::XChild > xChild( xChartModel, uno::UNO_QUERY );
        if( xChild.is() )
        {
            aGenerator = lcl_getGeneratorFromModel( uno::Reference< frame::XModel >( xChild->getParent(), uno::UNO_QUERY) );
            if( aGenerator.indexOf( "OpenOffice.org_project" ) != -1 )
            {
                //the chart application has not created files without a meta stream since OOo 2.3 (OOo 2.3 has written a metastream already)
                //only the report builder extension has created some files with OOo 3.1 that do not have a meta stream
                if( aGenerator.indexOf( "OpenOffice.org_project/31" ) != -1 )
                    bResult = false;//#i100102# probably generated with OOo 3.1 by the report designer
                else
                    bResult= true; //in this case the OLE chart was created by an older version, as OLE objects are sometimes stream copied the version can differ from the parents version, so the parents version is not a reliable indicator
            }
            else if( isDocumentGeneratedWithOpenOfficeOlderThan2_0(xChartModel) )
                bResult= true;
        }
    }
    return bResult;
}

bool isDocumentGeneratedWithOpenOfficeOlderThan2_0( const css::uno::Reference< css::frame::XModel >& xChartModel)
{
    bool bResult = false;
    OUString aGenerator( lcl_getGeneratorFromModelOrItsParent(xChartModel) );
    if(    aGenerator.startsWith( "OpenOffice.org 1" )
        || aGenerator.startsWith( "StarOffice 6" )
        || aGenerator.startsWith( "StarOffice 7" )
        || aGenerator.startsWith( "StarSuite 6" )
        || aGenerator.startsWith( "StarSuite 7" )
        )
        bResult= true;
    return bResult;
}

Reference< chart2::data::XDataProvider > getDataProviderFromParent( const Reference< chart2::XChartDocument >& xChartDoc )
{
    Reference< chart2::data::XDataProvider > xRet;
    uno::Reference< container::XChild > xChild( xChartDoc, uno::UNO_QUERY );
    if( xChild.is() )
    {
        Reference< lang::XMultiServiceFactory > xFact( xChild->getParent(), uno::UNO_QUERY );
        if( xFact.is() )
        {
            static constexpr OUStringLiteral aDataProviderServiceName( u"com.sun.star.chart2.data.DataProvider");
            const uno::Sequence< OUString > aServiceNames( xFact->getAvailableServiceNames());
            const OUString * pBegin = aServiceNames.getConstArray();
            const OUString * pEnd = pBegin + aServiceNames.getLength();
            if( ::std::find( pBegin, pEnd, aDataProviderServiceName ) != pEnd )
            {
                xRet.set( xFact->createInstance( aDataProviderServiceName ), uno::UNO_QUERY );
            }
        }
    }
    return xRet;
}

} // namespace SchXMLTools

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