/* -*- 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 <set>
#include <map>
#include <comphelper/processfactory.hxx>
#include <comphelper/string.hxx>

#include <vcl/stdtext.hxx>

#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/plugin/PluginDescription.hpp>
#include <com/sun/star/plugin/PluginManager.hpp>
#include <com/sun/star/plugin/XPluginManager.hpp>

using namespace std;
using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star::plugin;

struct ltstr
{
    bool operator()( const String& s1, const String& s2 ) const
    {
        return ( s1.CompareTo( s2 ) == COMPARE_LESS );
    }
};

typedef set< String, ltstr > StrSet;
typedef map< String, StrSet, ltstr > FilterMap;


//==================================================================================================
void fillNetscapePluginFilters( Sequence< rtl::OUString >& rPluginNames, Sequence< rtl::OUString >& rPluginTypes )
{
    Reference< XComponentContext > xContext = comphelper::getProcessComponentContext();
    Reference< XPluginManager > xPMgr( PluginManager::create(xContext) );

    FilterMap aMap;

    // sum up the mimetypes: one description, multiple extensions

    Sequence<PluginDescription > aDescriptions( xPMgr->getPluginDescriptions() );
    const PluginDescription * pDescriptions = aDescriptions.getConstArray();
    for ( sal_uInt32 nPos = aDescriptions.getLength(); nPos--; )
    {
        const PluginDescription & rDescr = pDescriptions[nPos];

        StrSet& rTypes = aMap[ rDescr.Description ];
        String aExtension( rDescr.Extension );

        for ( sal_uInt16 nCnt = comphelper::string::getTokenCount(aExtension,  ';'); nCnt--; )
        {
            // no default plugins anymore
            String aExt( aExtension.GetToken( nCnt, ';' ) );
            if ( aExt.CompareToAscii( "*.*" ) != COMPARE_EQUAL )
                rTypes.insert( aExt );
        }
    }

    rPluginNames = Sequence< rtl::OUString >( aMap.size() );
    rPluginTypes = Sequence< rtl::OUString >( aMap.size() );
    rtl::OUString* pPluginNames = rPluginNames.getArray();
    rtl::OUString* pPluginTypes = rPluginTypes.getArray();
    int nIndex = 0;
    for ( FilterMap::iterator iPos = aMap.begin(); iPos != aMap.end(); ++iPos )
    {
        String aText( (*iPos).first );
        String aType;
        StrSet& rTypes = (*iPos).second;
        StrSet::iterator i = rTypes.begin();
        while ( i != rTypes.end() )
        {
            aType += (*i);
            ++i;
            if ( i != rTypes.end() )
                aType += ';';
        }

        if ( aType.Len() )
        {
            aText += rtl::OUString( " (" );
            aText += aType;
            aText += ')';
            pPluginNames[nIndex] = aText;
            pPluginTypes[nIndex] = aType;
            nIndex++;
        }
    }
    rPluginNames.realloc( nIndex );
    rPluginTypes.realloc( nIndex );
}

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