/* -*- 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 "hyperlinkcontext.hxx"

#include <com/sun/star/xml/sax/XFastContextHandler.hpp>

#include <oox/helper/attributelist.hxx>

#include <oox/helper/propertymap.hxx>

#include <oox/core/relations.hxx>

#include <oox/core/xmlfilterbase.hxx>

#include <oox/token/namespaces.hxx>

#include <oox/token/properties.hxx>

#include <oox/token/tokens.hxx>

#include <o3tl/string_view.hxx>

#include <ooxresid.hxx>

#include <strings.hrc>

using namespace ::oox::core;

namespace oox::drawingml {

HyperLinkContext::HyperLinkContext( ContextHandler2Helper const & rParent,

        const AttributeList& rAttribs, PropertyMap& aProperties )

    : ContextHandler2( rParent )

    , maProperties(aProperties)

{

    OUString sURL, sHref;

    OUString aRelId = rAttribs.getStringDefaulted( R_TOKEN( id ) );

    if ( !aRelId.isEmpty() )

    {

        sHref = getRelations().getExternalTargetFromRelId( aRelId );

        if( !sHref.isEmpty() )

        {

            sURL = getFilter().getAbsoluteUrl( sHref );

        }

        else

        {

            // not sure if we also need to set sHref to the internal target

            sURL = getRelations().getInternalTargetFromRelId( aRelId );

        }

    }

    OUString sTooltip = rAttribs.getStringDefaulted( XML_tooltip );

    if ( !sTooltip.isEmpty() )

        maProperties.setProperty(PROP_Representation, sTooltip);

    OUString sFrame = rAttribs.getStringDefaulted( XML_tgtFrame );

    if( !sFrame.isEmpty() )

        maProperties.setProperty(PROP_TargetFrame, sFrame);

    OUString aAction = rAttribs.getStringDefaulted( XML_action );

    if ( !aAction.isEmpty() )

    {

        // reserved values of the unrestricted string aAction:

        // ppaction://customshow?id=SHOW_ID             // custom presentation

        // ppaction://hlinkfile                         // external file via r:id

        // ppaction://hlinkpres?slideindex=SLIDE_NUM    // external presentation via r:id

        // ppaction://hlinkshowjump?jump=endshow

        // ppaction://hlinkshowjump?jump=firstslide

        // ppaction://hlinkshowjump?jump=lastslide

        // ppaction://hlinkshowjump?jump=lastslideviewed

        // ppaction://hlinkshowjump?jump=nextslide

        // ppaction://hlinkshowjump?jump=previousslide

        // ppaction://hlinksldjump

        // ppaction://macro?name=MACRO_NAME

        // ppaction://program

        static constexpr OUString sPPAction( u"ppaction://"_ustr );

        if ( aAction.matchIgnoreAsciiCase( sPPAction ) )

        {

            OUString aPPAct( aAction.copy( sPPAction.getLength() ) );

            sal_Int32 nIndex = aPPAct.indexOf( '?' );

            OUString aPPAction( nIndex > 0 ? aPPAct.copy( 0, nIndex ) : aPPAct );

            if ( aPPAction.match( "hlinkshowjump" ) )

            {

                static constexpr OUString sJump( u"jump="_ustr );

                if ( aPPAct.match( sJump, nIndex + 1 ) )

                {

                    std::u16string_view aDestination( aPPAct.subView( nIndex + 1 + sJump.getLength() ) );

                    sURL += OUString::Concat("#action?jump=") + aDestination;

                }

            }

            else if ( aPPAction.match( "hlinksldjump" ) )

            {

                sHref = sURL;

                sal_Int32 nIndex2 = 0;

                while ( nIndex2 < sHref.getLength() )

                {

                    sal_Unicode nChar = sHref[ nIndex2 ];

                    if ( ( nChar >= '0' ) && ( nChar <= '9' ) )

                        break;

                    nIndex2++;

                }

                if ( nIndex2 && ( nIndex2 != sHref.getLength() ) )

                {

                    sal_Int32 nLength = 1;

                    while( ( nIndex2 + nLength ) < sHref.getLength() )

                    {

                        sal_Unicode nChar = sHref[ nIndex2 + nLength ];

                        if ( ( nChar < '0' ) || ( nChar > '9' ) )

                            break;

                        nLength++;

                    }

                    sal_Int32 nPageNumber = o3tl::toInt32(sHref.subView( nIndex2, nLength ));

                    if ( nPageNumber )

                    {

                        const OUString aSlideType( sHref.copy( 0, nIndex2 ) );

                        if ( aSlideType.match( "slide" ) )

                            sURL = "#" + URLResId(STR_SLIDE_NAME) + " " + OUString::number( nPageNumber );

                        else if ( aSlideType.match( "notesSlide" ) )

                            sURL = "#Notes " + OUString::number( nPageNumber );

//                      else: todo for other types such as notesMaster or slideMaster as they can't be referenced easily

                    }

                }

            }

        }

        maProperties.setProperty(PROP_Action, aAction);

    }

    if ( !sURL.isEmpty() )

        maProperties.setProperty(PROP_URL, sURL);

    OUString sInvalidUrl = rAttribs.getStringDefaulted(XML_invalidUrl);

    if (!sInvalidUrl.isEmpty())

        maProperties.setProperty(PROP_InvalidUrl, sInvalidUrl);

    bool bHistory = rAttribs.getBool(XML_history, true); // default="true"

    if (!bHistory) // set only if it is false

        maProperties.setProperty(PROP_History, bHistory);

    bool bHighlightClick = rAttribs.getBool(XML_highlightClick, false);

    if (bHighlightClick)

        maProperties.setProperty(PROP_HighlightClick, bHighlightClick);

    bool bEndSnd = rAttribs.getBool(XML_endSnd, false);

    if (bEndSnd)

        maProperties.setProperty(PROP_EndSnd, bEndSnd);

}

HyperLinkContext::~HyperLinkContext()

{

}

ContextHandlerRef HyperLinkContext::onCreateContext(

        ::sal_Int32 aElement, const AttributeList&  )

{

    switch( aElement )

    {

    case A_TOKEN( extLst ):

        maProperties.setProperty(PROP_CharColor, XML_fillcolor);

        break;

    case A_TOKEN( snd ):

        // TODO use getEmbeddedWAVAudioFile() here

        break;

    }

    return this;

}

} // namespace oox::drawingml

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