/*
 * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <string>
#include <memory>
#include <vector>

#include "wm_error.hpp"

namespace wm {

class WMLayer;
class LayerControl
{
  public:
    explicit LayerControl(const std::string& path);
    ~LayerControl();
    unsigned getNewLayerID(const std::string& role);
    // void setRenderOrder(const std::vector<unsigned> layer_render_order);
    // std::vector<unsigned> getAllRenderOrder();
    // std::vector<std::shared_ptr<WMLayer>>& getAllLayers();
    // std::vector<unsigned> getRenderOrder(const std::string& layer_name);
    WMError updateLayer(WMLayer& wm_layer);
    void commitChange();
    void undoUpdate();
  private:
    WMError load(const std::string& path);
    std::vector<std::shared_ptr<WMLayer>> wm_layers;
};

} // namespace wm