#ifndef CURSED_H
#define CURSED_H

#include <stdbool.h>
#include <sys/termios.h>

#define PACKED __attribute__((packed, aligned(1)))
#define PUBLIC __attribute((visibility("default")))
#define PROTECTED __attribute__((visibility("hidden")))
#define PRIVATE static

#define _INIT __attribute__((constructor))
#define _FINI __attribute__((destructor))

typedef unsigned char uid;      // >=  8B
typedef unsigned short int pos; // >= 16B

struct s_framebuffer {
  pos *buf; // framebuffer
  bool bitmap[];
} PACKED;

struct s_window {
  uid id;
  pos cols;
  pos rows;
  struct s_framebuffer frame;

  pos x;
  pos y;
} PACKED;

struct s_state {
  struct termios term;
} PACKED;

// === Public API ===
PRIVATE struct s_framebuffer *init_framebuffer(pos cols, pos rows);
PUBLIC struct s_window *init_window(uid id, pos cols, pos rows);

#endif /* CURSED_H */