#pragma once

#include <string>
#include <sys/types.h>

#include "entities/world.hpp"
#include "text/handler.hpp"
#include "utils/globals.hpp"

namespace
Nimbin
{

struct ProgramSystem
{
private:
    std::string _pending;

    pid_t _child {-1};

    int _out_fd  {-1};
    int _in_fd   {-1};
    int _count   {0};

    void push_Line  (Text::Handler& out, const std::string& line);
    void close_Child();
public:
    static inline float line_height = 0.4f;
    static inline float start_y     = World::get_FloorY() + 1;

    void run        (Text::Handler& out);
    void update     (Text::Handler& out);

    void feed_Input (const std::string& text);
    void echo_Input (Text::Handler& out, const std::string& line);
    void echo_Words (Text::Handler& out, DynArray<Text::TokenPtr>& words);

    bool is_Running () const { return _child > 0; }

    ~ProgramSystem();
};

} // namespace Nimbin