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#include "MetaExportComponent.hxx"
#include <com/sun/star/frame/XModel.hpp>
#include <com/sun/star/xml/sax/XDocumentHandler.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/uno/Sequence.hxx>
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/uno/Exception.hpp>
#include <com/sun/star/util/MeasureUnit.hpp>
#include <com/sun/star/beans/PropertyAttribute.hpp>
#include <comphelper/genericpropertyset.hxx>
#include <rtl/ustrbuf.hxx>
#include "xmloff/xmlnmspe.hxx"
#include <xmloff/nmspmap.hxx>
#include <xmloff/xmltoken.hxx>
#include <xmloff/xmlmetae.hxx>
#include "PropertySetMerger.hxx"

#include <unotools/docinfohelper.hxx>


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

XMLMetaExportComponent::XMLMetaExportComponent(
    const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xServiceFactory,
        sal_uInt16 nFlags )
:   SvXMLExport( util::MeasureUnit::CM, xServiceFactory, XML_TEXT, nFlags )
{
}

XMLMetaExportComponent::~XMLMetaExportComponent()
{
}

void SAL_CALL XMLMetaExportComponent::setSourceDocument( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XComponent >& xDoc ) throw(::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException)
{
    try
    {
        SvXMLExport::setSourceDocument( xDoc );
    }
    catch( lang::IllegalArgumentException& )
    {
        // allow to use document properties service without model access
        // this is required for document properties exporter
        mxDocProps =
            uno::Reference< document::XDocumentProperties >::query( xDoc );
        if( !mxDocProps.is() )
            throw lang::IllegalArgumentException();
    }
}

sal_uInt32 XMLMetaExportComponent::exportDoc( enum XMLTokenEnum )
{
    uno::Reference< xml::sax::XDocumentHandler > xDocHandler = GetDocHandler();

    if( (getExportFlags() & EXPORT_OASIS) == 0 )
    {
        uno::Reference< lang::XMultiServiceFactory > xFactory = getServiceFactory();
        if( xFactory.is() )
        {
            try
            {
                ::comphelper::PropertyMapEntry aInfoMap[] =
                {
                    { "Class", sizeof("Class")-1, 0,
                        &::getCppuType((::rtl::OUString*)0),
                        beans::PropertyAttribute::MAYBEVOID, 0},
                    { NULL, 0, 0, NULL, 0, 0 }
                };
                uno::Reference< beans::XPropertySet > xConvPropSet(
                    ::comphelper::GenericPropertySet_CreateInstance(
                            new ::comphelper::PropertySetInfo( aInfoMap ) ) );

                uno::Any aAny;
                aAny <<= GetXMLToken( XML_TEXT );
                xConvPropSet->setPropertyValue(
                        ::rtl::OUString("Class"), aAny );

                uno::Reference< beans::XPropertySet > xPropSet =
                    getExportInfo().is()
                        ?  PropertySetMerger_CreateInstance( getExportInfo(),
                                                          xConvPropSet )
                        : getExportInfo();

                uno::Sequence< uno::Any > aArgs( 3 );
                aArgs[0] <<= xDocHandler;
                aArgs[1] <<= xPropSet;
                aArgs[2] <<= GetModel();

                // get filter component
                xDocHandler = uno::Reference< xml::sax::XDocumentHandler >(
                    xFactory->createInstanceWithArguments(
                        ::rtl::OUString("com.sun.star.comp.Oasis2OOoTransformer"),
                        aArgs),
                    uno::UNO_QUERY_THROW );

                SetDocHandler( xDocHandler );
            }
            catch( com::sun::star::uno::Exception& )
            {
                OSL_FAIL( "Cannot instantiate com.sun.star.comp.Oasis2OOoTransformer!\n");
            }
        }
    }


    xDocHandler->startDocument();

    addChaffWhenEncryptedStorage();

    {

        const SvXMLNamespaceMap& rMap = GetNamespaceMap();
        sal_uInt16 nPos = rMap.GetFirstKey();
        while( USHRT_MAX != nPos )
        {
            GetAttrList().AddAttribute( rMap.GetAttrNameByKey( nPos ), rMap.GetNameByKey( nPos ) );
            nPos = GetNamespaceMap().GetNextKey( nPos );
        }

        const sal_Char* pVersion = 0;
        switch( getDefaultVersion() )
        {
        case SvtSaveOptions::ODFVER_LATEST: pVersion = "1.2"; break;
        case SvtSaveOptions::ODFVER_012_EXT_COMPAT: pVersion = "1.2"; break;
        case SvtSaveOptions::ODFVER_012: pVersion = "1.2"; break;
        case SvtSaveOptions::ODFVER_011: pVersion = "1.1"; break;
        case SvtSaveOptions::ODFVER_010: break;

        default:
            OSL_FAIL("xmloff::XMLMetaExportComponent::exportDoc(), unexpected odf default version!");
        }

        if( pVersion )
            AddAttribute( XML_NAMESPACE_OFFICE, XML_VERSION,
                            ::rtl::OUString::createFromAscii(pVersion) );

        SvXMLElementExport aDocElem( *this, XML_NAMESPACE_OFFICE, XML_DOCUMENT_META,
                    sal_True, sal_True );

        // NB: office:meta is now written by _ExportMeta
        _ExportMeta();
    }
    xDocHandler->endDocument();
    return 0;
}

void XMLMetaExportComponent::_ExportMeta()
{
    if (mxDocProps.is()) {
        ::rtl::OUString generator( ::utl::DocInfoHelper::GetGeneratorString() );
        // update generator here
        mxDocProps->setGenerator(generator);
        SvXMLMetaExport * pMeta = new SvXMLMetaExport(*this, mxDocProps);
        uno::Reference<xml::sax::XDocumentHandler> xMeta(pMeta);
        pMeta->Export();
    } else {
        SvXMLExport::_ExportMeta();
    }
}

// methods without content:
void XMLMetaExportComponent::_ExportAutoStyles() {}
void XMLMetaExportComponent::_ExportMasterStyles() {}
void XMLMetaExportComponent::_ExportContent() {}


uno::Sequence< rtl::OUString > SAL_CALL XMLMetaExportComponent_getSupportedServiceNames()
    throw()
{
    const rtl::OUString aServiceName(
         "com.sun.star.document.XMLOasisMetaExporter"  );
    const uno::Sequence< rtl::OUString > aSeq( &aServiceName, 1 );
    return aSeq;
}

rtl::OUString SAL_CALL XMLMetaExportComponent_getImplementationName() throw()
{
    return rtl::OUString(  "XMLMetaExportComponent"  );
}

uno::Reference< uno::XInterface > SAL_CALL XMLMetaExportComponent_createInstance(
        const uno::Reference< lang::XMultiServiceFactory > & rSMgr)
    throw( uno::Exception )
{
    return (cppu::OWeakObject*)new XMLMetaExportComponent(rSMgr, EXPORT_META|EXPORT_OASIS);
}

uno::Sequence< rtl::OUString > SAL_CALL XMLMetaExportOOO_getSupportedServiceNames()
    throw()
{
    const rtl::OUString aServiceName(
         "com.sun.star.document.XMLMetaExporter"  );
    const uno::Sequence< rtl::OUString > aSeq( &aServiceName, 1 );
    return aSeq;
}

rtl::OUString SAL_CALL XMLMetaExportOOO_getImplementationName() throw()
{
    return rtl::OUString(  "XMLMetaExportOOo"  );
}

uno::Reference< uno::XInterface > SAL_CALL XMLMetaExportOOO_createInstance(
        const uno::Reference< lang::XMultiServiceFactory > & rSMgr)
    throw( uno::Exception )
{
    return (cppu::OWeakObject*)new XMLMetaExportComponent(rSMgr, EXPORT_META);
}

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