/* -*- 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 <refundo.hxx>

#include <document.hxx>

#include <dbdata.hxx>

#include <rangenam.hxx>

#include <detdata.hxx>

#include <prnsave.hxx>

#include <chartlis.hxx>

#include <dpobject.hxx>

#include <areasave.hxx>

#include <unoreflist.hxx>

#include <scopetools.hxx>

#include <refupdatecontext.hxx>

ScRefUndoData::ScRefUndoData( ScDocument& rDoc, bool bForceDBSnapshot ) :

    pPrintRanges(rDoc.CreatePrintRangeSaver())

{

    // An empty database-range collection is normally skipped (nothing to

    // restore). A caller that may add a range to an empty collection during a

    // paste passes bForceDBSnapshot so the empty pre-state stays restorable.

    // DeleteUnchanged() drops it again if the operation changed nothing.

    const ScDBCollection* pOldDBColl = rDoc.GetDBCollection();

    if (pOldDBColl && (bForceDBSnapshot || !pOldDBColl->empty()))

        pDBCollection.reset(new ScDBCollection(*pOldDBColl));

    const ScRangeName& rOldRanges = rDoc.GetRangeName();

    if (!rOldRanges.empty())

        pRangeName.reset(new ScRangeName(rOldRanges));

    // when handling Pivot solely keep the range?

    const ScDPCollection* pOldDP = rDoc.GetDPCollection();

    if (pOldDP && pOldDP->GetCount())

        pDPCollection.reset(new ScDPCollection(*pOldDP));

    const ScDetOpList* pOldDetOp = rDoc.GetDetOpList();

    if (pOldDetOp && pOldDetOp->Count())

        pDetOpList.reset(new ScDetOpList(*pOldDetOp));

    const ScChartListenerCollection* pOldChartLisColl = rDoc.GetChartListenerCollection();

    if (pOldChartLisColl)

        pChartListenerCollection.reset(new ScChartListenerCollection(*pOldChartLisColl));

    pAreaLinks = ScAreaLinkSaveCollection::CreateFromDoc(rDoc);     // returns NULL if empty

    rDoc.BeginUnoRefUndo();

}

ScRefUndoData::~ScRefUndoData()

{

    pDBCollection.reset();

    pRangeName.reset();

    pPrintRanges.reset();

    pDPCollection.reset();

    pDetOpList.reset();

    pChartListenerCollection.reset();

    pAreaLinks.reset();

}

void ScRefUndoData::DeleteUnchanged( ScDocument& rDoc )

{

    if (pDBCollection)

    {

        ScDBCollection* pNewDBColl = rDoc.GetDBCollection();

        if ( pNewDBColl && *pDBCollection == *pNewDBColl )

            pDBCollection.reset();

    }

    if (pRangeName)

    {

        ScRangeName& rNewRanges = rDoc.GetRangeName();

        if ( *pRangeName == rNewRanges )

            pRangeName.reset();

    }

    if (pPrintRanges)

    {

        std::unique_ptr<ScPrintRangeSaver> pNewRanges = rDoc.CreatePrintRangeSaver();

        if ( pNewRanges && *pPrintRanges == *pNewRanges )

            pPrintRanges.reset();

    }

    if (pDPCollection)

    {

        ScDPCollection* pNewDP = rDoc.GetDPCollection();    //! const

        if ( pNewDP && pDPCollection->RefsEqual(*pNewDP) )

            pDPCollection.reset();

    }

    if (pDetOpList)

    {

        ScDetOpList* pNewDetOp = rDoc.GetDetOpList();

        if ( pNewDetOp && *pDetOpList == *pNewDetOp )

            pDetOpList.reset();

    }

    if ( pChartListenerCollection )

    {

        ScChartListenerCollection* pNewChartListenerCollection =

            rDoc.GetChartListenerCollection();

        if ( pNewChartListenerCollection &&

                *pChartListenerCollection == *pNewChartListenerCollection )

            pChartListenerCollection.reset();

    }

    if (pAreaLinks)

    {

        if ( pAreaLinks->IsEqual( rDoc ) )

            pAreaLinks.reset();

    }

    if ( rDoc.HasUnoRefUndo() )

    {

        pUnoRefs = rDoc.EndUnoRefUndo();

        if ( pUnoRefs && pUnoRefs->IsEmpty() )

        {

            pUnoRefs.reset();

        }

    }

}

void ScRefUndoData::DoUndo( ScDocument& rDoc, bool bUndoRefFirst )

{

    if (pDBCollection)

        rDoc.SetDBCollection( std::unique_ptr<ScDBCollection>(new ScDBCollection(*pDBCollection)) );

    if (pRangeName)

        rDoc.SetRangeName( std::unique_ptr<ScRangeName>(new ScRangeName(*pRangeName)) );

    if (pPrintRanges)

        rDoc.RestorePrintRanges(*pPrintRanges);

    if (pDPCollection)

    {

        ScDPCollection* pDocDP = rDoc.GetDPCollection();

        if (pDocDP)

            pDPCollection->WriteRefsTo( *pDocDP );

    }

    if (pDetOpList)

        rDoc.SetDetOpList( std::unique_ptr<ScDetOpList>(new ScDetOpList(*pDetOpList)) );

    // bUndoRefFirst is bSetChartRangeLists

    if ( pChartListenerCollection )

        rDoc.SetChartListenerCollection( std::make_unique<ScChartListenerCollection>(

            *pChartListenerCollection ), bUndoRefFirst );

    if (pDBCollection || pRangeName)

    {

        sc::AutoCalcSwitch aACSwitch(rDoc, false);

        rDoc.CompileAll();

        sc::SetFormulaDirtyContext aCxt;

        rDoc.SetAllFormulasDirty(aCxt);

    }

    if (pAreaLinks)

        pAreaLinks->Restore( rDoc );

    if ( pUnoRefs )

        pUnoRefs->Undo( rDoc );

}

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