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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 OSGEARTH_FEATURES_SESSION_H
#define OSGEARTH_FEATURES_SESSION_H 1

#include <osgEarthFeatures/Common>
#include <osgEarthSymbology/ResourceCache>
#include <osgEarthSymbology/Style>
#include <osgEarth/ThreadingUtils>
#include <osgEarth/Map>

namespace osgEarth { namespace Features
{
    using namespace osgEarth;
    using namespace osgEarth::Symbology;

    class OSGEARTHFEATURES_EXPORT Session : public osg::Referenced
    {
    public:
        Session( const Map* map, StyleSheet* styles =0L );

        void setURIContext( const URIContext& value ) { _uriContext = value; }
        const URIContext& uriContext() const { return _uriContext; }

        MapFrame createMapFrame( Map::ModelParts parts =Map::TERRAIN_LAYERS ) const;

        const MapInfo& getMapInfo() const { return _mapInfo; }

        void setStyles( StyleSheet* value );
        StyleSheet* styles() const { return _styles.get(); }

        //ResourceCache* resourceCache() { return _resourceCache.get(); }
        //const ResourceCache* resourceCache() const { return _resourceCache.get(); }

    public: // URIResolver
        
        //std::string resolveURI( const std::string& inputURI ) const;

    public:
        void putObject( const std::string& key, osg::Referenced* object );

        template<typename T> T* getObject( const std::string& key ) {
            Threading::ScopedReadLock lock( _objMapMutex );
            ObjectMap::const_iterator i = _objMap.find(key);
            return i != _objMap.end() ? dynamic_cast<T*>( i->second.get() ) : 0L;
        }

        void removeObject( const std::string& key );

    private:

        //osg::ref_ptr<ResourceCache> _resourceCache;

        typedef std::map<std::string, osg::ref_ptr<osg::Referenced> > ObjectMap;
        ObjectMap                    _objMap;
        Threading::ReadWriteMutex    _objMapMutex;

        URIContext                     _uriContext;
        osg::ref_ptr<const Map>        _map;
        MapInfo                        _mapInfo;
        //std::string                    _referenceURI;
        osg::ref_ptr<StyleSheet>       _styles;
    };

} }

#endif // OSGEARTH_FEATURES_SESSION_H