/* -*- 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 "ChartPlotAreaOOoTContext.hxx"

#include "TransformerBase.hxx"

#include <xmloff/namespacemap.hxx>

#include <xmloff/xmlnamespace.hxx>

#include <xmloff/xmltoken.hxx>

#include "DeepTContext.hxx"

#include "ActionMapTypesOOo.hxx"

#include "MutableAttrList.hxx"

#include <osl/diagnose.h>

using namespace ::com::sun::star;

using namespace ::xmloff::token;

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

class XMLAxisOOoContext : public XMLPersElemContentTContext

{

public:

    XMLAxisOOoContext( XMLTransformerBase& rTransformer,

                       const OUString& rQName );

    virtual void StartElement( const Reference< xml::sax::XAttributeList >& rAttrList ) override;

    bool IsCategoryAxis() const { return m_bIsCategoryAxis;}

private:

    bool m_bIsCategoryAxis;

};

XMLAxisOOoContext::XMLAxisOOoContext(

    XMLTransformerBase& rTransformer,

    const OUString& rQName ) :

        XMLPersElemContentTContext( rTransformer, rQName ),

        m_bIsCategoryAxis( false )

{}

void XMLAxisOOoContext::StartElement(

    const Reference< xml::sax::XAttributeList >& rAttrList )

{

    Reference< xml::sax::XAttributeList > xAttrList( rAttrList );

    rtl::Reference<XMLMutableAttributeList> pMutableAttrList;

    sal_Int16 nAttrCount = xAttrList.is() ? xAttrList->getLength() : 0;

    for( sal_Int16 i=0; i < nAttrCount; i++ )

    {

        const OUString aAttrName = xAttrList->getNameByIndex( i );

        OUString aLocalName;

        sal_uInt16 nPrefix =

            GetTransformer().GetNamespaceMap().GetKeyByAttrName( aAttrName, &aLocalName );

        if( nPrefix == XML_NAMESPACE_CHART &&

            IsXMLToken( aLocalName, XML_CLASS ) )

        {

            if( !pMutableAttrList )

            {

                pMutableAttrList = new XMLMutableAttributeList( xAttrList );

                xAttrList = pMutableAttrList;

            }

            const OUString aAttrValue = xAttrList->getValueByIndex( i );

            XMLTokenEnum eToken = XML_TOKEN_INVALID;

            if( IsXMLToken( aAttrValue, XML_DOMAIN ) ||

                IsXMLToken( aAttrValue, XML_CATEGORY ))

            {

                eToken = XML_X;

                if( IsXMLToken( aAttrValue, XML_CATEGORY ) )

                    m_bIsCategoryAxis = true;

            }

            else if( IsXMLToken( aAttrValue, XML_VALUE ))

            {

                eToken = XML_Y;

            }

            else if( IsXMLToken( aAttrValue, XML_SERIES ))

            {

                eToken = XML_Z;

            }

            else

            {

                OSL_FAIL( "ChartAxis: Invalid attribute value" );

            }

            if( eToken != XML_TOKEN_INVALID )

            {

                OUString aNewAttrQName(

                    GetTransformer().GetNamespaceMap().GetQNameByKey(

                        XML_NAMESPACE_CHART, GetXMLToken( XML_DIMENSION )));

                pMutableAttrList->RenameAttributeByIndex( i, aNewAttrQName );

                pMutableAttrList->SetValueByIndex( i, GetXMLToken( eToken ));

            }

        }

    }

    XMLPersElemContentTContext::StartElement( xAttrList );

}

XMLChartPlotAreaOOoTContext::XMLChartPlotAreaOOoTContext(

    XMLTransformerBase & rTransformer, const OUString & rQName ) :

        XMLProcAttrTransformerContext( rTransformer, rQName, OOO_SHAPE_ACTIONS )

{

}

rtl::Reference<XMLTransformerContext> XMLChartPlotAreaOOoTContext::CreateChildContext(

    sal_uInt16 nPrefix,

    const OUString& rLocalName,

    const OUString& rQName,

    const uno::Reference< xml::sax::XAttributeList >& xAttrList )

{

    rtl::Reference<XMLTransformerContext> pContext;

    if( XML_NAMESPACE_CHART == nPrefix &&

        IsXMLToken( rLocalName, XML_AXIS ) )

    {

        rtl::Reference<XMLAxisOOoContext> pAxisContext( new XMLAxisOOoContext( GetTransformer(), rQName ));

        AddContent( pAxisContext );

        pContext = pAxisContext;

    }

    else if( XML_NAMESPACE_CHART == nPrefix &&

             IsXMLToken( rLocalName, XML_CATEGORIES ) )

    {

        pContext.set(new XMLPersAttrListTContext( GetTransformer(), rQName ));

        // put categories at correct axis

        bool bFound =false;

        // iterate over axis elements

        for( const auto& rChildContext : m_aChildContexts )

        {

            XMLAxisOOoContext * pAxisContext = rChildContext.get();

            if( pAxisContext != nullptr )

            {

                // iterate over attributes to find category axis

                Reference< xml::sax::XAttributeList > xNewAttrList( pAxisContext->GetAttrList());

                sal_Int16 nAttrCount = xNewAttrList.is() ? xNewAttrList->getLength() : 0;

                for( sal_Int16 i=0; i < nAttrCount; i++ )

                {

                    const OUString aAttrName = xNewAttrList->getNameByIndex( i );

                    OUString aLocalName;

                    sal_uInt16 nNewPrefix =

                        GetTransformer().GetNamespaceMap().GetKeyByAttrName( aAttrName,

                                                                             &aLocalName );

                    if( nNewPrefix == XML_NAMESPACE_CHART &&

                        pAxisContext->IsCategoryAxis() &&

                        IsXMLToken( aLocalName, XML_DIMENSION ) )

                    {

                        // category axis found

                        pAxisContext->AddContent( pContext );

                        bFound = true;

                        break;

                    }

                }

            }

            if (bFound)

                break;

        }

        OSL_ENSURE( bFound, "No suitable axis for categories found." );

    }

    else

    {

        ExportContent();

        pContext =  XMLProcAttrTransformerContext::CreateChildContext(

            nPrefix, rLocalName, rQName, xAttrList );

    }

    return pContext;

}

void XMLChartPlotAreaOOoTContext::EndElement()

{

    ExportContent();

    XMLProcAttrTransformerContext::EndElement();

}

void XMLChartPlotAreaOOoTContext::AddContent(rtl::Reference<XMLAxisOOoContext> const & pContext)

{

    OSL_ENSURE( pContext.is() && pContext->IsPersistent(),

                "non-persistent context" );

    m_aChildContexts.push_back(pContext);

}

void XMLChartPlotAreaOOoTContext::ExportContent()

{

    for( auto& rChildContext : m_aChildContexts )

    {

        rChildContext->Export();

    }

    m_aChildContexts.clear();

}

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