/*****************************************************************************************
 *                                                                                       *
 * OpenSpace                                                                             *
 *                                                                                       *
 * Copyright (c) 2014-2017                                                               *
 *                                                                                       *
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 * permit persons to whom the Software is furnished to do so, subject to the following   *
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 * The above copyright notice and this permission notice shall be included in all copies *
 * or substantial portions of the Software.                                              *
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 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A         *
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 ****************************************************************************************/

#include <modules/globebrowsing/chunk/chunklevelevaluator/availabletiledataevaluator.h>

#include <modules/globebrowsing/chunk/chunk.h>
#include <modules/globebrowsing/globes/chunkedlodglobe.h>
#include <modules/globebrowsing/globes/renderableglobe.h>
#include <modules/globebrowsing/rendering/layer/layergroup.h>
#include <modules/globebrowsing/rendering/layer/layermanager.h>
#include <modules/globebrowsing/tile/tileprovider/tileprovider.h>

namespace openspace::globebrowsing::chunklevelevaluator {
    
int AvailableTileData::getDesiredLevel(const Chunk& chunk, const RenderData&) const {
    auto layerManager = chunk.owner().chunkedLodGlobe()->layerManager();
    // auto layers = layerManager->layerGroup(LayerManager::HeightLayers).activeLayers();
    int currLevel = chunk.tileIndex().level;
        
    for (size_t i = 0; i < layergroupid::NUM_LAYER_GROUPS; ++i) {
        for (const auto& layer : layerManager->layerGroup(i).activeLayers()) {
            Tile::Status status = layer->getTileStatus(chunk.tileIndex());
            if (status == Tile::Status::OK) {
                return UnknownDesiredLevel;
            }
        }
    }

    return currLevel - 1;
}

} // namespace openspace::globebrowsing::chunklevelevaluator