#ifndef WINDOW_H
#define WINDOW_H

#include "aliases.h"
#include <SDL2/SDL_pixels.h>
#include <SDL2/SDL_render.h>
#include <SDL2/SDL_video.h>
#include <stdbool.h>

typedef struct point point;
typedef point vec2;
typedef struct line line;
typedef struct triangle triangle;
typedef struct quad quad;
typedef struct rect rect;
typedef struct window window;

struct point {
  i32 x;
  i32 y;
};

struct line {
  point p0;
  point p1;
};

struct triangle {
  point p0;
  point p1;
  point p2;
};

struct quad {
  point p0;
  point p1;
  point p2;
  point p3;
};

struct rect {
  point topleft;
  i32 w;
  i32 h;
};

struct window {
  u32 id;
  u64 x;
  u64 y;
  u64 width;
  u64 height;
  const char *title;
  SDL_Window *window;
  SDL_Renderer *renderer;
};

typedef struct colour colour;
struct colour {
  union {
    u32 abgr;
    SDL_Color colour;
  };
};

bool init_window(window *wnd, const char *title, u32 width, u32 height, i32 x,
                 i32 y);
void cleanup_window(window *wnd);
void clear_window(const window *wnd, colour colour);
void swap_buffers(const window *wnd);

vec2 line_direction(const line *ln);

void draw_point(const window *wnd, point p, colour colour);
void draw_line(const window *wnd, const line *ln, colour colour);
void draw_triangle(const window *wnd, triangle triangle, colour colour);
void draw_quad(const window *wnd, quad qd, colour colour);
void draw_rect(const window *wnd, rect rec, colour colour);

void fill_triangle(const window *wnd, triangle triangle, colour colour);
void fill_quad(const window *wnd, quad qd, colour colour);
void fill_rect(const window *wnd, rect rec, colour colour);

#endif // !WINDOW_H