text: /*****************************************************************************************
   *                                                                                       *
   * OpenSpace                                                                             *
   *                                                                                       *
   * Copyright (c) 2014-2020                                                               *
   *                                                                                       *
   * 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 <modules/server/include/topics/getpropertytopic.h>
  
  #include <modules/server/include/connection.h>
  #include <modules/server/include/jsonconverters.h>
  #include <modules/volume/transferfunctionhandler.h>
  #include <openspace/engine/globals.h>
  #include <openspace/engine/virtualpropertymanager.h>
  #include <openspace/engine/windowdelegate.h>
  #include <openspace/interaction/navigationhandler.h>
  #include <openspace/network/parallelpeer.h>
  #include <openspace/query/query.h>
  #include <openspace/rendering/luaconsole.h>
  #include <openspace/rendering/renderengine.h>
  #include <openspace/rendering/screenspacerenderable.h>
  #include <openspace/scene/scene.h>
  #include <ghoul/logging/logmanager.h>
  
  using nlohmann::json;
  
  namespace {
      constexpr const char* _loggerCat = "GetPropertyTopic";
      constexpr const char* AllPropertiesValue = "__allProperties";
      constexpr const char* AllNodesValue = "__allNodes";
      constexpr const char* AllScreenSpaceRenderablesValue = "__screenSpaceRenderables";
      constexpr const char* PropertyKey = "property";
      constexpr const char* RootPropertyOwner = "__rootOwner";
  } // namespace
  
  namespace openspace {
  
  void GetPropertyTopic::handleJson(const nlohmann::json& json) {
      std::string requestedKey = json.at(PropertyKey).get<std::string>();
      LDEBUG("Getting property '" + requestedKey + "'...");
      nlohmann::json response;
      if (requestedKey == AllPropertiesValue) {
          response = allProperties();
      }
      else if (requestedKey == AllNodesValue) {
          response = wrappedPayload(sceneGraph()->allSceneGraphNodes());
      }
      else if (requestedKey == AllScreenSpaceRenderablesValue) {
          response = wrappedPayload({
              { "value", global::renderEngine.screenSpaceRenderables() }
          });
      }
      else if (requestedKey == RootPropertyOwner) {
          response = wrappedPayload(global::rootPropertyOwner);
      }
      else {
          response = propertyFromKey(requestedKey);
      }
      _connection->sendJson(response);
  }
  
  bool GetPropertyTopic::isDone() const {
      return true;
  }
  
  json GetPropertyTopic::allProperties() {
      json payload {
          {
              "value",
              {
                  global::renderEngine,
                  global::luaConsole,
                  global::parallelPeer,
                  global::navigationHandler,
                  global::virtualPropertyManager,
              }
          }
      };
      return wrappedPayload(payload);
  }
  
  json GetPropertyTopic::propertyFromKey(const std::string& key) {
      properties::Property* prop = property(key);
      if (prop) {
          return wrappedPayload(prop);
      }
  
      return wrappedError(fmt::format("Property '{}' not found", key), 404);
  }
  
  } // namespace openspace
  