/* -*- 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/.
 */

#include "xedbdata.hxx"
#include "excrecds.hxx"
#include "xltools.hxx"
#include "dbdata.hxx"
#include "document.hxx"
#include <oox/export/utils.hxx>

using namespace oox;

/** (So far) dummy implementation of table export for BIFF5/BIFF7. */
class XclExpTablesImpl5 : public XclExpTables
{
public:
    explicit            XclExpTablesImpl5( const XclExpRoot& rRoot );
    virtual             ~XclExpTablesImpl5() override;

    virtual void        Save( XclExpStream& rStrm ) override;
    virtual void        SaveXml( XclExpXmlStream& rStrm ) override;
};

/** Implementation of table export for OOXML, so far dummy for BIFF8. */
class XclExpTablesImpl8 : public XclExpTables
{
public:
    explicit            XclExpTablesImpl8( const XclExpRoot& rRoot );
    virtual             ~XclExpTablesImpl8() override;

    virtual void        Save( XclExpStream& rStrm ) override;
    virtual void        SaveXml( XclExpXmlStream& rStrm ) override;
};


XclExpTablesImpl5::XclExpTablesImpl5( const XclExpRoot& rRoot ) :
    XclExpTables( rRoot )
{
}

XclExpTablesImpl5::~XclExpTablesImpl5()
{
}

void XclExpTablesImpl5::Save( XclExpStream& /*rStrm*/ )
{
    // not implemented
}

void XclExpTablesImpl5::SaveXml( XclExpXmlStream& /*rStrm*/ )
{
    // not applicable
}


XclExpTablesImpl8::XclExpTablesImpl8( const XclExpRoot& rRoot ) :
    XclExpTables( rRoot )
{
}

XclExpTablesImpl8::~XclExpTablesImpl8()
{
}

void XclExpTablesImpl8::Save( XclExpStream& /*rStrm*/ )
{
    // not implemented
}

void XclExpTablesImpl8::SaveXml( XclExpXmlStream& rStrm )
{

    sax_fastparser::FSHelperPtr& pWorksheetStrm = rStrm.GetCurrentStream();
    pWorksheetStrm->startElement( XML_tableParts, FSEND);
    for (auto const& it : maTables)
    {
        OUString aRelId;
        sax_fastparser::FSHelperPtr pTableStrm = rStrm.CreateOutputStream(
                XclXmlUtils::GetStreamName("xl/tables/", "table", it.mnTableId),
                XclXmlUtils::GetStreamName("../tables/", "table", it.mnTableId),
                pWorksheetStrm->getOutputStream(),
                CREATE_XL_CONTENT_TYPE("table"),
                CREATE_OFFICEDOC_RELATION_TYPE("table"),
                &aRelId);

        pWorksheetStrm->singleElement( XML_tablePart,
                FSNS(XML_r, XML_id), XclXmlUtils::ToOString(aRelId).getStr(),
                FSEND);

        rStrm.PushStream( pTableStrm);
        SaveTableXml( rStrm, it);
        rStrm.PopStream();
    }
    pWorksheetStrm->endElement( XML_tableParts);
}


XclExpTablesManager::XclExpTablesManager( const XclExpRoot& rRoot ) :
    XclExpRoot( rRoot )
{
}

XclExpTablesManager::~XclExpTablesManager()
{
}

void XclExpTablesManager::Initialize()
{
    // All non-const to be able to call RefreshTableColumnNames().
    ScDocument& rDoc = GetDoc();
    ScDBCollection* pDBColl = rDoc.GetDBCollection();
    if (!pDBColl)
        return;

    ScDBCollection::NamedDBs& rDBs = pDBColl->getNamedDBs();
    if (rDBs.empty())
        return;

    sal_Int32 nTableId = 0;
    for (ScDBCollection::NamedDBs::iterator itDB(rDBs.begin()); itDB != rDBs.end(); ++itDB)
    {
        ScDBData* pDBData = itDB->get();
        pDBData->RefreshTableColumnNames( &rDoc);   // currently not in sync, so refresh
        ScRange aRange( ScAddress::UNINITIALIZED);
        pDBData->GetArea( aRange);
        SCTAB nTab = aRange.aStart.Tab();
        TablesMapType::iterator it = maTablesMap.find( nTab);
        if (it == maTablesMap.end())
        {
            ::std::shared_ptr< XclExpTables > pNew;
            switch( GetBiff() )
            {
                case EXC_BIFF5:
                    pNew.reset( new XclExpTablesImpl5( GetRoot()));
                    break;
                case EXC_BIFF8:
                    pNew.reset( new XclExpTablesImpl8( GetRoot()));
                    break;
                default:
                    assert(!"Unknown BIFF type!");
                    continue;   // for
            }
            ::std::pair< TablesMapType::iterator, bool > ins( maTablesMap.insert( ::std::make_pair( nTab, pNew)));
            if (!ins.second)
            {
                assert(!"XclExpTablesManager::Initialize - XclExpTables insert failed");
                continue;   // for
            }
            it = ins.first;
        }
        it->second->AppendTable( pDBData, ++nTableId);
    }
}

::std::shared_ptr< XclExpTables > XclExpTablesManager::GetTablesBySheet( SCTAB nTab )
{
    TablesMapType::iterator it = maTablesMap.find(nTab);
    return it == maTablesMap.end() ? nullptr : it->second;
}

XclExpTables::Entry::Entry( const ScDBData* pData, sal_Int32 nTableId ) :
    mpData(pData), mnTableId(nTableId)
{
}

XclExpTables::XclExpTables( const XclExpRoot& rRoot ) :
    XclExpRoot(rRoot)
{
}

XclExpTables::~XclExpTables()
{
}

void XclExpTables::AppendTable( const ScDBData* pData, sal_Int32 nTableId )
{
    maTables.push_back( Entry( pData, nTableId));
}

void XclExpTables::SaveTableXml( XclExpXmlStream& rStrm, const Entry& rEntry )
{
    const ScDBData& rData = *rEntry.mpData;
    ScRange aRange( ScAddress::UNINITIALIZED);
    rData.GetArea( aRange);
    sax_fastparser::FSHelperPtr& pTableStrm = rStrm.GetCurrentStream();
    pTableStrm->startElement( XML_table,
        XML_xmlns, "http://schemas.openxmlformats.org/spreadsheetml/2006/main",
        XML_id, OString::number( rEntry.mnTableId).getStr(),
        XML_name, XclXmlUtils::ToOString( rData.GetName()).getStr(),
        XML_displayName, XclXmlUtils::ToOString( rData.GetName()).getStr(),
        XML_ref, XclXmlUtils::ToOString(aRange),
        XML_headerRowCount, BS(rData.HasHeader()),
        XML_totalsRowCount, BS(rData.HasTotals()),
        XML_totalsRowShown, BS(rData.HasTotals()),  // we don't support that but if there are totals they are shown
        // OOXTODO: XML_comment, ...,
        // OOXTODO: XML_connectionId, ...,
        // OOXTODO: XML_dataCellStyle, ...,
        // OOXTODO: XML_dataDxfId, ...,
        // OOXTODO: XML_headerRowBorderDxfId, ...,
        // OOXTODO: XML_headerRowCellStyle, ...,
        // OOXTODO: XML_headerRowDxfId, ...,
        // OOXTODO: XML_insertRow, ...,
        // OOXTODO: XML_insertRowShift, ...,
        // OOXTODO: XML_published, ...,
        // OOXTODO: XML_tableBorderDxfId, ...,
        // OOXTODO: XML_tableType, ...,
        // OOXTODO: XML_totalsRowBorderDxfId, ...,
        // OOXTODO: XML_totalsRowCellStyle, ...,
        // OOXTODO: XML_totalsRowDxfId, ...,
        FSEND);

    if (rData.HasAutoFilter())
    {
        /* TODO: does this need to exclude totals row? */

        /* TODO: in OOXML  12.3.21 Table Definition Part  has information
         * that an applied autoFilter has child elements
         * <af:filterColumn><af:filters><af:filter>.
         * When not applied but buttons hidden, Excel writes, for example,
         * <filterColumn colId="0" hiddenButton="1"/> */

        ExcAutoFilterRecs aAutoFilter( rStrm.GetRoot(), aRange.aStart.Tab(), &rData);
        aAutoFilter.SaveXml( rStrm);
    }

    const std::vector< OUString >& rColNames = rData.GetTableColumnNames();
    if (!rColNames.empty())
    {
        pTableStrm->startElement( XML_tableColumns,
                XML_count, OString::number( aRange.aEnd.Col() - aRange.aStart.Col() + 1).getStr(),
                FSEND);

        for (size_t i=0, n=rColNames.size(); i < n; ++i)
        {
            // OOXTODO: write <calculatedColumnFormula> once we support it, in
            // which case we'd need start/endElement XML_tableColumn for such
            // column.

            // OOXTODO: write <totalsRowFormula> once we support it.

            pTableStrm->singleElement( XML_tableColumn,
                    XML_id, OString::number(i+1).getStr(),
                    XML_name, OUStringToOString( rColNames[i], RTL_TEXTENCODING_UTF8).getStr(),
                    // OOXTODO: XML_dataCellStyle, ...,
                    // OOXTODO: XML_dataDxfId, ...,
                    // OOXTODO: XML_headerRowCellStyle, ...,
                    // OOXTODO: XML_headerRowDxfId, ...,
                    // OOXTODO: XML_queryTableFieldId, ...,
                    // OOXTODO: XML_totalsRowCellStyle, ...,
                    // OOXTODO: XML_totalsRowDxfId, ...,
                    // OOXTODO: XML_totalsRowFunction, ...,
                    // OOXTODO: XML_totalsRowLabel, ...,
                    // OOXTODO: XML_uniqueName, ...,
                    FSEND);
        }

        pTableStrm->endElement( XML_tableColumns);
    }

    // OOXTODO: write <tableStyleInfo> once we have table styles.

    pTableStrm->endElement( XML_table);
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */