//
// Created by m on 7/27/17.
//

#ifndef TMCAGLWM_LAYERS_H
#define TMCAGLWM_LAYERS_H

#include <json.hpp>
#include <set>
#include <string>

#include "result.hpp"

namespace wm {

struct surface_id_to_layer {
   int id_min = -1;
   int id_max = -1;
   std::string name = "";
   int layer_id = -1;

   explicit surface_id_to_layer(nlohmann::json const &j);

   bool operator<(struct surface_id_to_layer const &rhs) const {
      return this->id_max < rhs.id_max;
   }
};

// Actually, we shouldn't need a struct here ... but let's just keep it at that
// for now, to contain its mapping type and the _single_ useful method.
struct surface_id_to_layer_map {
   typedef std::set<struct surface_id_to_layer> surface_to_layer_map_type;
   typedef std::vector<unsigned int> layers_type;

   surface_to_layer_map_type mapping;
   layers_type layers;

   optional<int> get_layer_for_surface(int surface_id);
   layers_type::size_type get_layers_count() const {
      return this->layers.size();
   }
};

struct result<struct surface_id_to_layer_map> to_surface_id_to_layer_map(
   nlohmann::json const &j);

}  // namespace wm

#endif  // TMCAGLWM_LAYERS_H