/* -*- 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 "xmltabi.hxx"
#include "xmlimprt.hxx"
#include "xmlrowi.hxx"
#include "xmlcoli.hxx"
#include "xmlsceni.hxx"
#include "xmlexternaltabi.hxx"
#include "xmlnexpi.hxx"
#include <document.hxx>
#include <docuno.hxx>
#include <olinetab.hxx>
#include "XMLTableShapesContext.hxx"
#include "XMLTableSourceContext.hxx"
#include "XMLStylesImportHelper.hxx"
#include <rangeutl.hxx>
#include <externalrefmgr.hxx>
#include <sheetdata.hxx>
#include "xmlcondformat.hxx"

#include <xmloff/xmltkmap.hxx>
#include <xmloff/xmltoken.hxx>
#include <xmloff/xmlnmspe.hxx>
#include <xmloff/XMLEventsImportContext.hxx>
#include <sal/log.hxx>

#include <tools/urlobj.hxx>
#include <sax/fastattribs.hxx>
#include <com/sun/star/sheet/XSpreadsheet.hpp>
#include <comphelper/servicehelper.hxx>

using namespace com::sun::star;
using namespace xmloff::token;
using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::UNO_QUERY;
using ::com::sun::star::xml::sax::XAttributeList;

/**
 * Determine whether this table is an external reference cache from its
 * name.  There is currently no way of determining whether a table is a
 * regular table or an external reference cache other than examining the
 * name itself.  We should probably introduce a new boolean value for
 * table:table element and use it instead of doing this, to make it more
 * reliable and future-proof.
 *
 * @param rName
 *
 * @return
 */
static bool lcl_isExternalRefCache(const OUString& rName, OUString& rUrl, OUString& rExtTabName)
{
    // 'file:///path/to/file.ods'#MySheet
    // 'file:///path/to/file.ods'#MySheet with space
    // 'file:///path/to/file's.ods'#Sheet (Notice the quote in the file name.
    //  That's allowed.)

    if ( rName.toChar() != '\'' )       // initial quote
        return false;

    // #i114504# Other schemes besides "file:" are also allowed.
    // CompareProtocolScheme is quick, only looks at the start of the string.
    INetProtocol eProt = INetURLObject::CompareProtocolScheme( rName.copy(1) );
    if ( eProt == INetProtocol::NotValid )
        return false;

    OUString aPrefix = INetURLObject::GetScheme( eProt );
    sal_Int32 nPrefLen = aPrefix.getLength();

    OUStringBuffer aUrlBuf, aTabNameBuf;
    aUrlBuf.append( aPrefix );
    sal_Int32 n = rName.getLength();
    const sal_Unicode* p = rName.getStr();

    bool bInUrl = true;
    sal_Unicode cPrev = 0;
    for (sal_Int32 i = nPrefLen+1; i < n; ++i)      // start the loop after quote and prefix
    {
        const sal_Unicode c = p[i];
        if (bInUrl)
        {
            // parsing file URL
            if (c == '#')
            {
                if (cPrev != '\'')
                    return false;

                rUrl = aUrlBuf.makeStringAndClear();
                rUrl = rUrl.copy(0, rUrl.getLength()-1); // remove the trailing single-quote.
                bInUrl = false;
            }
            else
                aUrlBuf.append(c);
        }
        else
            // parsing sheet name.
            aTabNameBuf.append(c);

        cPrev = c;
    }

    if (bInUrl)
        return false;

    if (aTabNameBuf.isEmpty())
        return false;

    rExtTabName = aTabNameBuf.makeStringAndClear();

    return true;
}

ScXMLExternalTabData::ScXMLExternalTabData() :
    mpCacheTable(), mnRow(0), mnCol(0), mnFileId(0)
{
}

ScXMLTableContext::ScXMLTableContext( ScXMLImport& rImport,
                                      const rtl::Reference<sax_fastparser::FastAttributeList>& rAttrList ) :
    ScXMLImportContext( rImport ),
    nStartOffset(-1),
    bStartFormPage(false),
    bPrintEntireSheet(true)
{
    // get start offset in file (if available)
    nStartOffset = GetScImport().GetByteOffset();

    ScXMLTabProtectionData aProtectData;
    OUString sName;
    OUString sStyleName;

    if ( rAttrList.is() )
    {
        for (auto &it : *rAttrList)
        {
            switch (it.getToken())
            {
                case XML_ELEMENT( TABLE, XML_NAME ):
                        sName = it.toString();
                    break;
                case XML_ELEMENT( TABLE, XML_STYLE_NAME ):
                        sStyleName = it.toString();
                    break;
                case XML_ELEMENT( TABLE, XML_PROTECTED ):
                    aProtectData.mbProtected = IsXMLToken( it, XML_TRUE );
                break;
                case XML_ELEMENT( TABLE, XML_PRINT_RANGES ):
                        sPrintRanges = it.toString();
                    break;
                case XML_ELEMENT( TABLE, XML_PROTECTION_KEY ):
                    aProtectData.maPassword = it.toString();
                break;
                case XML_ELEMENT( TABLE, XML_PROTECTION_KEY_DIGEST_ALGORITHM ):
                    aProtectData.meHash1 = ScPassHashHelper::getHashTypeFromURI( it.toString() );
                break;
                case XML_ELEMENT( TABLE, XML_PROTECTION_KEY_DIGEST_ALGORITHM_2 ):
                case XML_ELEMENT( LO_EXT, XML_PROTECTION_KEY_DIGEST_ALGORITHM_2 ):
                    aProtectData.meHash2 = ScPassHashHelper::getHashTypeFromURI( it.toString() );
                break;
                case XML_ELEMENT( TABLE, XML_PRINT ):
                    {
                        if ( IsXMLToken( it, XML_FALSE) )
                            bPrintEntireSheet = false;
                    }
                    break;
            }

        }
    }

    OUString aExtUrl, aExtTabName;
    if (lcl_isExternalRefCache(sName, aExtUrl, aExtTabName))
    {
        // This is an external ref cache table.
        pExternalRefInfo.reset(new ScXMLExternalTabData);
        ScDocument* pDoc = GetScImport().GetDocument();
        if (pDoc)
        {
            ScExternalRefManager* pRefMgr = pDoc->GetExternalRefManager();
            pExternalRefInfo->mnFileId = pRefMgr->getExternalFileId(aExtUrl);
            pExternalRefInfo->mpCacheTable = pRefMgr->getCacheTable(pExternalRefInfo->mnFileId, aExtTabName, true,
                    nullptr, &aExtUrl);
            pExternalRefInfo->mpCacheTable->setWholeTableCached();
        }
    }
    else
    {
        // This is a regular table.
        GetScImport().GetTables().NewSheet(sName, sStyleName, aProtectData);
    }
}

ScXMLTableContext::~ScXMLTableContext()
{
}

SvXMLImportContextRef ScXMLTableContext::CreateChildContext( sal_uInt16 nPrefix,
                                            const OUString& rLName,
                                            const css::uno::Reference<css::xml::sax::XAttributeList>& /*xAttrList*/ )
{
    const SvXMLTokenMap& rTokenMap(GetScImport().GetTableElemTokenMap());
    sal_uInt16 nToken = rTokenMap.Get(nPrefix, rLName);
    if (pExternalRefInfo)
    {
        return new SvXMLImportContext(GetImport(), nPrefix, rLName);
    }

    SvXMLImportContext *pContext(nullptr);

    switch (nToken)
    {
    case XML_TOK_TABLE_FORMS:
        {
            GetScImport().GetFormImport()->startPage(GetScImport().GetTables().GetCurrentXDrawPage());
            bStartFormPage = true;
            pContext = xmloff::OFormLayerXMLImport::createOfficeFormsContext( GetScImport(), nPrefix, rLName );
        }
        break;
    default:
        ;
    }

    return pContext;
}

uno::Reference< xml::sax::XFastContextHandler > SAL_CALL
        ScXMLTableContext::createFastChildContext( sal_Int32 nElement,
        const uno::Reference< xml::sax::XFastAttributeList > & xAttrList )
{
    sax_fastparser::FastAttributeList *pAttribList =
        &sax_fastparser::castToFastAttributeList( xAttrList );

    if (pExternalRefInfo)
    {
        // We only care about the table-row and table-source elements for
        // external cache data.
        switch ( nElement )
        {
            case XML_ELEMENT( TABLE, XML_TABLE_ROW_GROUP ):
            case XML_ELEMENT( TABLE, XML_TABLE_HEADER_ROWS ):
            case XML_ELEMENT( TABLE, XML_TABLE_ROWS ):
                // #i101319# don't discard rows in groups or header (repeat range)
                return new ScXMLExternalRefRowsContext(
                    GetScImport(), *pExternalRefInfo);
            case XML_ELEMENT( TABLE, XML_TABLE_ROW ):
                return new ScXMLExternalRefRowContext(
                    GetScImport(), pAttribList, *pExternalRefInfo);
            case XML_ELEMENT( TABLE, XML_TABLE_SOURCE ):
                return new ScXMLExternalRefTabSourceContext(
                    GetScImport(), pAttribList, *pExternalRefInfo);
            default:
                ;
        }
        return nullptr;
    }

    SvXMLImportContext *pContext(nullptr);

    switch ( nElement )
    {
    case XML_ELEMENT( TABLE, XML_NAMED_EXPRESSIONS ):
    {
        SCTAB nTab = GetScImport().GetTables().GetCurrentSheet();
        pContext = new ScXMLNamedExpressionsContext(
            GetScImport(),
            std::make_shared<ScXMLNamedExpressionsContext::SheetLocalInserter>(GetScImport(), nTab));
    }
        break;
    case XML_ELEMENT( TABLE, XML_TABLE_COLUMN_GROUP ):
        pContext = new ScXMLTableColsContext( GetScImport(), pAttribList,
                                                   false, true );
        break;
    case XML_ELEMENT( TABLE, XML_TABLE_HEADER_COLUMNS ):
        pContext = new ScXMLTableColsContext( GetScImport(), pAttribList,
                                                   true, false );
        break;
    case XML_ELEMENT( TABLE, XML_TABLE_COLUMNS ):
        pContext = new ScXMLTableColsContext( GetScImport(), pAttribList,
                                                   false, false );
        break;
    case XML_ELEMENT( TABLE, XML_TABLE_COLUMN ):
        pContext = new ScXMLTableColContext( GetScImport(), pAttribList );
        break;
    case XML_ELEMENT( TABLE, XML_TABLE_PROTECTION ):
    case XML_ELEMENT( LO_EXT, XML_TABLE_PROTECTION ):
    case XML_ELEMENT( OFFICE_EXT, XML_TABLE_PROTECTION ):
        pContext = new ScXMLTableProtectionContext( GetScImport(), pAttribList );
        break;
    case XML_ELEMENT( TABLE, XML_TABLE_ROW_GROUP ):
        pContext = new ScXMLTableRowsContext( GetScImport(), pAttribList,
                                                   false, true );
        break;
    case XML_ELEMENT( TABLE, XML_TABLE_HEADER_ROWS ):
        pContext = new ScXMLTableRowsContext( GetScImport(), pAttribList,
                                                   true, false );
        break;
    case XML_ELEMENT( TABLE, XML_TABLE_ROWS ):
        pContext = new ScXMLTableRowsContext( GetScImport(), pAttribList,
                                                   false, false );
        break;
    case XML_ELEMENT( TABLE, XML_TABLE_ROW ):
            pContext = new ScXMLTableRowContext( GetScImport(), pAttribList );
        break;
    case XML_ELEMENT( TABLE, XML_TABLE_SOURCE ):
        pContext = new ScXMLTableSourceContext( GetScImport(), pAttribList);
        break;
    case XML_ELEMENT( TABLE, XML_SCENARIO ):
        pContext = new ScXMLTableScenarioContext( GetScImport(), pAttribList);
        break;
    case XML_ELEMENT( TABLE, XML_SHAPES ):
        pContext = new ScXMLTableShapesContext( GetScImport() );
        break;
    case XML_ELEMENT( CALC_EXT, XML_CONDITIONAL_FORMATS ):
        pContext = new ScXMLConditionalFormatsContext( GetScImport() );
        break;
    case XML_ELEMENT(OFFICE, XML_EVENT_LISTENERS):
    case XML_ELEMENT(OFFICE_EXT, XML_EVENT_LISTENERS):
        {
            // use XEventsSupplier interface of the sheet
            uno::Reference<document::XEventsSupplier> xSupplier( GetScImport().GetTables().GetCurrentXSheet(), uno::UNO_QUERY );
            pContext = new XMLEventsImportContext( GetImport(), xSupplier );
        }
        break;
    }

    return pContext;
}

void SAL_CALL ScXMLTableContext::endFastElement(sal_Int32 /*nElement*/)
{
    ScXMLImport::MutexGuard aMutexGuard(GetScImport());
    ScXMLImport& rImport = GetScImport();
    rImport.GetStylesImportHelper()->EndTable();
    ScDocument* pDoc(rImport.GetDocument());
    if (!pDoc)
        return;

    ScMyTables& rTables = rImport.GetTables();
    SCTAB nCurTab = rTables.GetCurrentSheet();
    if (!sPrintRanges.isEmpty())
    {
        ScRangeList aRangeList;
        ScRangeStringConverter::GetRangeListFromString( aRangeList, sPrintRanges, pDoc, ::formula::FormulaGrammar::CONV_OOO );
        size_t nCount = aRangeList.size();
        for (size_t i=0; i< nCount; i++ )
        {
            pDoc->AddPrintRange( nCurTab, aRangeList[i] );
        }
    }
    else if (!bPrintEntireSheet)
        // Sheet has "print entire sheet" option by default.  Remove it.
        pDoc->ClearPrintRanges(nCurTab);

    ScOutlineTable* pOutlineTable(pDoc->GetOutlineTable(nCurTab));
    if (pOutlineTable)
    {
        ScOutlineArray& rColArray(pOutlineTable->GetColArray());
        size_t nDepth = rColArray.GetDepth();
        for (size_t i = 0; i < nDepth; ++i)
        {
            size_t nCount = rColArray.GetCount(i);
            for (size_t j = 0; j < nCount; ++j)
            {
                const ScOutlineEntry* pEntry = rColArray.GetEntry(i, j);
                if (pEntry->IsHidden())
                    rColArray.SetVisibleBelow(i, j, false);
            }
        }
        ScOutlineArray& rRowArray(pOutlineTable->GetRowArray());
        nDepth = rRowArray.GetDepth();
        for (size_t i = 0; i < nDepth; ++i)
        {
            size_t nCount = rRowArray.GetCount(i);
            for (size_t j = 0; j < nCount; ++j)
            {
                const ScOutlineEntry* pEntry = rRowArray.GetEntry(i, j);
                if (pEntry->IsHidden())
                    rRowArray.SetVisibleBelow(i, j, false);
            }
        }
    }
    if (rTables.HasDrawPage())
    {
        if (rTables.HasXShapes())
        {
            rImport.GetShapeImport()->popGroupAndPostProcess();
            uno::Reference < drawing::XShapes > xTempShapes(rTables.GetCurrentXShapes());
            rImport.GetShapeImport()->endPage(xTempShapes);
        }
        if (bStartFormPage)
            rImport.GetFormImport()->endPage();
    }

    rTables.DeleteTable();
    rImport.ProgressBarIncrement();

    // store stream positions
    if (!pExternalRefInfo && nStartOffset >= 0 /* && nEndOffset >= 0 */)
    {
        ScSheetSaveData* pSheetData = comphelper::getUnoTunnelImplementation<ScModelObj>(rImport.GetModel())->GetSheetSaveData();
        SCTAB nTab = rTables.GetCurrentSheet();
        // pSheetData->AddStreamPos( nTab, nStartOffset, nEndOffset );
        pSheetData->StartStreamPos( nTab, nStartOffset );
    }
}

ScXMLTableProtectionContext::ScXMLTableProtectionContext(
    ScXMLImport& rImport,
    const rtl::Reference<sax_fastparser::FastAttributeList>& rAttrList ) :
    ScXMLImportContext( rImport )
{
    bool bSelectProtectedCells = false;
    bool bSelectUnprotectedCells = false;
    bool bInsertColumns = false;
    bool bInsertRows = false;
    bool bDeleteColumns = false;
    bool bDeleteRows = false;

    if ( rAttrList.is() )
    {
        for (auto &aIter : *rAttrList)
        {
            sal_Int32 nToken = aIter.getToken();
            switch (nToken)
            {
            case XML_ELEMENT( TABLE, XML_SELECT_PROTECTED_CELLS ):
            case XML_ELEMENT( OFFICE_EXT, XML_SELECT_PROTECTED_CELLS ):
            case XML_ELEMENT( LO_EXT, XML_SELECT_PROTECTED_CELLS ):
                bSelectProtectedCells = IsXMLToken(aIter, XML_TRUE);
                break;
            case XML_ELEMENT( TABLE, XML_SELECT_UNPROTECTED_CELLS ):
            case XML_ELEMENT( OFFICE_EXT, XML_SELECT_UNPROTECTED_CELLS ):
            case XML_ELEMENT( LO_EXT, XML_SELECT_UNPROTECTED_CELLS ):
                bSelectUnprotectedCells = IsXMLToken(aIter, XML_TRUE);
                break;
            case XML_ELEMENT( LO_EXT, XML_INSERT_COLUMNS ):
                bInsertColumns = IsXMLToken(aIter, XML_TRUE);
                break;
            case XML_ELEMENT( LO_EXT,  XML_INSERT_ROWS ):
                bInsertRows = IsXMLToken(aIter, XML_TRUE);
                break;
            case XML_ELEMENT( LO_EXT, XML_DELETE_COLUMNS ):
                bDeleteColumns = IsXMLToken(aIter, XML_TRUE);
                break;
            case XML_ELEMENT( LO_EXT, XML_DELETE_ROWS ):
                bDeleteRows = IsXMLToken(aIter, XML_TRUE);
                break;
            default:
                SAL_WARN("sc", "unknown attribute " << SvXMLImport::getPrefixAndNameFromToken(nToken) << "=" << aIter.toString());
            }
        }
    }

    ScXMLTabProtectionData& rProtectData = GetScImport().GetTables().GetCurrentProtectionData();
    rProtectData.mbSelectProtectedCells   = bSelectProtectedCells;
    rProtectData.mbSelectUnprotectedCells = bSelectUnprotectedCells;
    rProtectData.mbInsertColumns = bInsertColumns;
    rProtectData.mbInsertRows = bInsertRows;
    rProtectData.mbDeleteColumns = bDeleteColumns;
    rProtectData.mbDeleteRows = bDeleteRows;
}

ScXMLTableProtectionContext::~ScXMLTableProtectionContext()
{
}

uno::Reference< xml::sax::XFastContextHandler > SAL_CALL ScXMLTableProtectionContext::createFastChildContext(
    sal_Int32 /*nElement*/, const uno::Reference< xml::sax::XFastAttributeList >& /*xAttrList*/ )
{
    return nullptr;
}

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