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/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
 * Copyright 2008-2010 Pelican Mapping
 * http://osgearth.org
 *
 * osgEarth is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */

#ifndef OSGEARTHSYMBOLOGY_RESOURCE_LIBRARY_H
#define OSGEARTHSYMBOLOGY_RESOURCE_LIBRARY_H 1

#include <osgEarthSymbology/Common>
#include <osgEarthSymbology/Skins>
#include <osgEarth/ThreadingUtils>
#include <osgEarth/Random>
#include <map>

namespace osgEarth { namespace Symbology
{
    class OSGEARTHSYMBOLOGY_EXPORT ResourceLibrary : public osg::Referenced
    {
    public:
        static ResourceLibrary* create( const URI& uri );

    public:
        ResourceLibrary( const Config& conf =Config() );

        void addResource( Resource* resource );

        void removeResource( Resource* resource );


    public: // Skin resource functions

        SkinResource* getSkin( const std::string& name ) const;

        void getSkins( SkinResourceVector& output ) const;

        void getSkins( const SkinSymbol* symbol, SkinResourceVector& output ) const;

        SkinResource* getSkin( const SkinSymbol* symbol, Random& prng ) const;


    public: // Model resource functions

        //TODO

    public: // serialization functions

        void mergeConfig( const Config& conf );

    protected:
        typedef std::map< const Symbol*, Random > RandomMap;

        Threading::ReadWriteMutex _mutex;
        SkinResourceMap           _skins;

        bool matches( const SkinSymbol* symbol, SkinResource* skin ) const;
    };


    typedef std::map< std::string, osg::ref_ptr<ResourceLibrary> > ResourceLibraryMap;


} } // namespace osgEarth::Symbology

#endif // OSGEARTHSYMBOLOGY_RESOURCE_LIBRARY_H