#pragma once
#include "math.hpp"
#include <vector>
#include <string>

namespace basalt::shared::object_loader {

    class Object {
    public:
        Object(std::vector<math::Vector3>&& vertices, std::vector<math::Triangle>&& triangles);
        ~Object();

    public:
        size_t get_vertices_count() const;
        const math::Vector3* get_vertices() const;
        size_t get_triangle_count() const;
        const math::Triangle* get_triangles() const;

    private:
        std::vector<math::Vector3> vertices;
        std::vector<math::Triangle> triangles;
    };

    struct ObjectLoaderConfig {
        std::string filename;
    };

    enum class ObjectLoaderStatus {
        Ready,
        Loaded,
    };

    /**
     * @brief 
     * @details
     * \li 加载的模型的坐标系与Blender一致。
     * \li 加载的模型的顶点顺序为CCW，即右手定则确认法线方向。
     */
    class IObjectLoader {
    public:
        IObjectLoader();
        virtual ~IObjectLoader();

    public:
        virtual void load(ObjectLoaderConfig&& config);
        const Object& get_object(size_t index) const;
        size_t get_object_count() const;

    protected:
        ObjectLoaderStatus status;
        ObjectLoaderConfig config;
        std::vector<Object> objects;
    };

} // namespace basalt::shared::object_loader