#ifndef HITTABLE_LIST_H
#define HITTABLE_LIST_H

#include "hittable.hpp"

#include <memory>
#include <vector>

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

struct hittable_list : hittable {
    /* Attributes */
    std::vector<shared_ptr<hittable>> objects;

    /* Constructors */
    hittable_list () {}
    hittable_list(shared_ptr<hittable> h) { add(h); }

    /* Methods */
    void clear() { objects.clear(); }
    void add (shared_ptr<hittable> h) { objects.push_back(h); }

    virtual bool hit(const ray& r, double t_min, double t_max, hit_record& rec) const override;
};

bool hittable_list::hit(const ray& r, double t_min, double t_max, hit_record& rec) const
{
    rmt_ScopedCPUSample(HittableList_Hit, RMTSF_Aggregate);
    hit_record temp_rec;
    bool hit_anything = false;
    double closest_so_far = t_max;

    for (const auto& object : objects)
    {
        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