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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_DRIVER_WORLDWIND_DRIVEROPTIONS
#define OSGEARTH_DRIVER_WORLDWIND_DRIVEROPTIONS 1

#include <osgEarth/Common>
#include <osgEarth/TileSource>


namespace osgEarth { namespace Drivers
{
    using namespace osgEarth;

    class WorldWindOptions : public TileSourceOptions // NO EXPORT; header only
    {
    public:
        optional<int>& maxLOD() { return _maxLOD; }
        const optional<int>& maxLOD() const { return _maxLOD; }

        optional<std::string>& elevationCachePath() { return _elevationCachePath; }
        const optional<std::string>& elevationCachePath() const { return _elevationCachePath; }

        optional<std::string>& elevationURL() { return _elevationURL; }
        const optional<std::string>& elevationURL() const { return _elevationURL; }

        // image support NYI ... use the "tileservice" plugin instead
        //optional<std::string>& imageURL() { return _imageURL; }
        //const optional<std::string>& imageURL() const { return _imageURL; }

    public:
        WorldWindOptions( const TileSourceOptions& opt =TileSourceOptions() ) : TileSourceOptions( opt ),
            _maxLOD( 11 ),
            _elevationURL( "http://worldwind25.arc.nasa.gov/wwelevation/wwelevation.aspx?T=srtm30pluszip" ),
            _imageURL( "http://s0.tileservice.worldwindcentral.com/getTile?" )
        {
            setDriver( "worldwind" );
            fromConfig( _conf );
        }

    public:
        Config getConfig() const {
            Config conf = TileSourceOptions::getConfig();
            conf.updateIfSet("image_url", _imageURL);
            conf.updateIfSet("elevation_url", _elevationURL);
            conf.updateIfSet("max_lod", _maxLOD);
            conf.updateIfSet("elevation_cache", _elevationCachePath);
            return conf;
        }

    protected:
        void mergeConfig( const Config& conf ) {
            TileSourceOptions::mergeConfig( conf );
            fromConfig( conf );
        }

    private:
        void fromConfig( const Config& conf ) {
            conf.getIfSet("image_url", _imageURL);
            conf.getIfSet("elevation_url", _elevationURL);
            conf.getIfSet("max_lod", _maxLOD);
            conf.getIfSet("elevation_cache", _elevationCachePath);
            conf.getIfSet("worldwind_cache", _elevationCachePath); // back compat
        }

        optional<std::string> _imageURL;
        optional<std::string> _elevationURL;
        optional<std::string> _elevationCachePath;
        optional<int>         _maxLOD;
    };

} } // namespace osgEarth::Drivers

#endif // OSGEARTH_DRIVER_WMS_DRIVEROPTIONS