#ifndef VIEWER_HPP
#define VIEWER_HPP

#include "world.hpp"
#include "animqueue.hpp"
#include <vector>
#include <string>
#include <unordered_map>
#include <memory>

class Viewer {
private:
    std::unique_ptr<World> world_;
    std::vector<int64_t> tangibles_;
    std::unordered_map<int64_t, AnimView> anim_view_;


public:
    Viewer();
    ~Viewer();

    // Get the lua state for interaction.
    //
    lua_State *get_lua_state() { return world_->get_lua_state(); }
    
    // Get the player ID of the current player.
    //
    int64_t get_player_id();

    // Update the view.
    //
    void update_view();

    // Get a list of the tangibles in viewing radius of the player.
    //
    const std::vector<int64_t> &get_tangibles_near_player();

    // Get the animation viewer of the specified tangible.
    //
    AnimView *get_animation_view(int64_t id);

    // Get the menu of the specified tangible.
    //
    std::vector<std::string> get_menu(int64_t id);

    // Select the specified menu item.
    //
    void choose_menu_item(int64_t id, const std::string &item);

    // Advance the simulation clock.  Called 1/sec.
    //
    void advance_clock();
};

#endif // VIEWER_HPP