#ifndef RAYTRACER_H
#define RAYTRACER_H

#include "c_cpp_aliases/aliases.h"
#include "vector/vec.h"
#include "window/window.h"

typedef struct {
  f32 radius;
  vec3f_t centre;
  colour_t colour;
  f32 specular;
  f32 reflective;
} sphere_t;

typedef enum {
  LIGHT_TYPE_POINT,
  LIGHT_TYPE_DIRECTIONAL,
  LIGHT_TYPE_AMBIENT,

  COUNT_LIGHT_TYPE,
} light_type_t;

typedef struct {
  light_type_t type;
  f32 intensity;
  union {
    vec3f_t position;
    vec3f_t direction;
  };
} light_t;

typedef struct {
  sphere_t *spheres;
  light_t *lights;
  u32 spheres_count;
  u32 lights_count;
} scene_t;

typedef struct {
  f32 t1;
  f32 t2;
} solutions_t;

typedef struct {
  f32 closest_t;
  sphere_t *closest_sphere;
} intersection_t;

colour_t trace_ray(vec3f_t origin, vec3f_t direction, f32 t_min, f32 t_max,
                   const scene_t *scene, colour_t default_colour,
                   u32 recursion_depth);

#endif // !RAYTRACER_H