#include "dinkyecs.hpp"
#include <unordered_map>

// BUG: this should have a bool for "permanent" or "constant" so that
// everything working with it knows to do the make_constant/not_constant
// dance when using it.  Idea is the System:: ops for this would get it
// and then look at the bool and add the constant ops as needed.
namespace inventory {
  struct Model {
    std::unordered_map<std::string, DinkyECS::Entity> by_slot;
    std::unordered_map<DinkyECS::Entity, std::string> by_entity;

    bool add(const std::string &in_slot, DinkyECS::Entity ent);
    const std::string& get(DinkyECS::Entity ent);
    DinkyECS::Entity get(const std::string& slot);
    bool has(DinkyECS::Entity ent);
    bool has(const std::string& slot);
    void remove(DinkyECS::Entity ent);
    void invariant();
    void dump();
    void swap(DinkyECS::Entity a_ent, DinkyECS::Entity b_ent);
    size_t count();
  };
}