/* -*- 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 .

 */

#pragma once

#include <o3tl/any.hxx>

#include <rtl/strbuf.hxx>

#include <sal/log.hxx>

#include <tools/helpers.hxx>

#include <com/sun/star/uno/Any.hxx>

#include <com/sun/star/uno/Reference.hxx>

#include <com/sun/star/animations/XAnimate.hpp>

#include <com/sun/star/animations/XAnimationNode.hpp>

#include <com/sun/star/container/XEnumerationAccess.hpp>

#include <com/sun/star/container/XEnumeration.hpp>

#include <com/sun/star/presentation/ParagraphTarget.hpp>

#include <vector>

/* Declaration and definition of AnimationNode helper */

namespace anim

{

    // TODO(Q1): this could possibly be implemented with a somewhat

    // more lightweight template, by having the actual worker receive

    // only a function pointer, and a thin templated wrapper around

    // that which converts member functions into that.

    /** pushes the given node to the given vector and recursively calls itself for each child node.

    */

    inline void create_deep_vector( const css::uno::Reference< css::animations::XAnimationNode >& xNode,

                                std::vector< css::uno::Reference< css::animations::XAnimationNode > >& rVector )

    {

        rVector.push_back( xNode );

        try

        {

            // get an XEnumerationAccess to the children

            css::uno::Reference< css::container::XEnumerationAccess >

                  xEnumerationAccess( xNode, css::uno::UNO_QUERY );

            if( xEnumerationAccess.is() )

            {

                css::uno::Reference< css::container::XEnumeration >

                      xEnumeration = xEnumerationAccess->createEnumeration();

                if( xEnumeration.is() )

                {

                    while( xEnumeration->hasMoreElements() )

                    {

                        css::uno::Reference< css::animations::XAnimationNode >

                            xChildNode( xEnumeration->nextElement(),

                                        css::uno::UNO_QUERY_THROW );

                        create_deep_vector( xChildNode, rVector );

                    }

                }

            }

        }

        catch( css::uno::Exception& )

        {

        }

    }

    inline bool getVisibilityPropertyForAny(css::uno::Any const& rAny)

    {

        bool bVisible = false;

        css::uno::Any aAny(rAny);

        // try to extract bool value

        if (!(aAny >>= bVisible))

        {

            // try to extract string

            OUString aString;

            if (aAny >>= aString)

            {

                // we also take the strings "true" and "false",

                // as well as "on" and "off" here

                if (aString.equalsIgnoreAsciiCase("true") ||

                    aString.equalsIgnoreAsciiCase("on"))

                {

                    bVisible = true;

                }

                if (aString.equalsIgnoreAsciiCase("false") ||

                    aString.equalsIgnoreAsciiCase("off"))

                {

                    bVisible = false;

                }

            }

        }

        return bVisible;

    }

    inline bool getVisibilityProperty(

        const css::uno::Reference< css::animations::XAnimate >& xAnimateNode, bool& bReturn)

    {

        if (xAnimateNode->getAttributeName().equalsIgnoreAsciiCase("visibility"))

        {

            css::uno::Any aAny(xAnimateNode->getTo());

            bReturn = getVisibilityPropertyForAny(aAny);

            return true;

        }

        return false;

    }

    inline void convertTarget(OStringBuffer& aStringBuffer, const css::uno::Any& rTarget)

    {

        if (!rTarget.hasValue())

            return;

        css::uno::Reference<css::uno::XInterface> xRef;

        if (auto xParagraphTarget = o3tl::tryAccess<css::presentation::ParagraphTarget>(rTarget))

        {

            if (xParagraphTarget->Shape.is())

            {

                const std::string aIdentifier(GetInterfaceHash(xParagraphTarget->Shape));

                if (!aIdentifier.empty())

                {

                    sal_Int32 nParagraph(xParagraphTarget->Paragraph);

                    aStringBuffer.append(aIdentifier);

                    aStringBuffer.append("_");

                    aStringBuffer.append(nParagraph);

                }

            }

        }

        else

        {

            rTarget >>= xRef;

            SAL_WARN_IF(!xRef.is(), "animations", "convertTarget(), invalid target type!");

            if (xRef.is())

            {

                const std::string aIdentifier(GetInterfaceHash(xRef));

                if (!aIdentifier.empty())

                    aStringBuffer.append(aIdentifier);

            }

        }

    }

}

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