#ifndef HITTABLE_LIST_H
#define HITTABLE_LIST_H

#include "hittable.hpp"
#include "sphere.hpp"

#include <memory>
#include <vector>

using std::shared_ptr;
using std::make_shared;

template <typename T = sphere>
struct hittable_list {
    /* Attributes */
    std::vector<T> objects;

    /* Constructors */
    hittable_list () {}
    hittable_list(T object) { add(object); }

    /* Methods */
    void clear() { objects.clear(); }
    void add (T h) { objects.push_back(h); }

    bool hit(const ray& r, float t_min, float t_max, hit_record& rec);
};

template <typename T>
bool hittable_list<T>::hit(const ray& r, float t_min, float t_max, hit_record& rec)
{
    rmt_ScopedCPUSample(HittableList_Hit, RMTSF_Aggregate);
    hit_record temp_rec;
    bool hit_anything = false;
    float closest_so_far = t_max;

    uint32_t s = objects.size();
    for (uint32_t i = 0; i < s; ++i)
    {
        T *object = &objects[i];
        if (object->hit(r, t_min, closest_so_far, temp_rec))
        {
            hit_anything = true;
            closest_so_far = temp_rec.t;
            rec = temp_rec;
        }
    }

    return hit_anything;
}

#endif