text: /*****************************************************************************************
   *                                                                                       *
   * OpenSpace                                                                             *
   *                                                                                       *
   * Copyright (c) 2014-2021                                                               *
   *                                                                                       *
   * Permission is hereby granted, free of charge, to any person obtaining a copy of this  *
   * software and associated documentation files (the "Software"), to deal in the Software *
   * without restriction, including without limitation the rights to use, copy, modify,    *
   * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to    *
   * permit persons to whom the Software is furnished to do so, subject to the following   *
   * conditions:                                                                           *
   *                                                                                       *
   * The above copyright notice and this permission notice shall be included in all copies *
   * or substantial portions of the Software.                                              *
   *                                                                                       *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,   *
   * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A         *
   * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT    *
   * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF  *
   * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE  *
   * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                                         *
   ****************************************************************************************/
  
  #include <openspace/engine/openspaceengine.h>
  #include <openspace/rendering/renderengine.h>
  #include <openspace/engine/globals.h>
  
  namespace openspace::luascriptfunctions::asset {
  
  int add(lua_State* state) {
      ghoul::lua::checkArgumentsAndThrow(state, 1, "lua::add");
  
      AssetManager* assetManager =
          reinterpret_cast<AssetManager*>(lua_touserdata(state, lua_upvalueindex(1)));
  
      const std::string& assetName = ghoul::lua::value<std::string>(
          state,
          1,
          ghoul::lua::PopValue::Yes
      );
  
      if (global::renderEngine->scene()) {
          assetManager->add(assetName);
      }
      else {
          // The scene might not exist yet if OpenSpace was started without specifying an
          // initial asset
          global::openSpaceEngine->scheduleLoadSingleAsset(assetName);
      }
  
  
      ghoul_assert(lua_gettop(state) == 0, "Incorrect number of items left on stack");
      return 0;
  }
  
  int remove(lua_State* state) {
      ghoul::lua::checkArgumentsAndThrow(state, 1, "lua::remove");
  
      AssetManager* assetManager =
          reinterpret_cast<AssetManager*>(lua_touserdata(state, lua_upvalueindex(1)));
  
      const std::string& assetName = ghoul::lua::value<std::string>(
          state,
          1,
          ghoul::lua::PopValue::Yes
      );
      assetManager->remove(assetName);
  
      ghoul_assert(lua_gettop(state) == 0, "Incorrect number of items left on stack");
      return 0;
  }
  
  int removeAll(lua_State* state) {
      ghoul::lua::checkArgumentsAndThrow(state, 0, "lua::removeAll");
  
      AssetManager* assetManager =
          reinterpret_cast<AssetManager*>(lua_touserdata(state, lua_upvalueindex(1)));
  
      assetManager->removeAll();
  
      return 0;
  }
  
  } // namespace openspace::luascriptfunctions
  