/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 */

#pragma once

#include "Base/ICloseable.hpp"
#include "Scene/IRayIntersectable.hpp"
#include "DrawEncoder.hpp"
#include <memory>
#include <vector>

#ifdef _WIN32
#  undef TRANSPARENT
#endif

namespace OpenVulkano::Scene
{
	class Node;
	class Scene;
	class Shader;

	enum class DrawPhase
	{
		BACKGROUND = 0, MAIN, TRANSPARENT, POST
	};

	class Drawable : public ICloseable, public IRayIntersectable
	{
		std::vector<Node*> m_nodes;
		Scene* m_scene = nullptr;
		Shader* m_shader = nullptr;
		const DrawEncoder m_encoder;
		const DrawPhase m_drawPhase;
		bool m_isHittable = false;

	public:
		explicit Drawable(const DrawEncoder& encoder,
						  const DrawPhase phase = DrawPhase::MAIN)
			: m_encoder(encoder), m_drawPhase(phase) {}

		~Drawable() override {/* if (m_scene) Drawable::Close();*/ }

		void Close() override;

		void SetShader(Shader* shader) { m_shader = shader; }

		std::optional<RayHit> Intersect(const Ray& ray) const override { return {}; }

		void SetIsHittable(bool hittable) { m_isHittable = hittable; }

		bool IsHittable() const { return m_isHittable; }

		[[nodiscard]] Scene* GetScene() const { return m_scene; }

		[[nodiscard]] const auto& GetNodes() const { return m_nodes; }

		[[nodiscard]] const DrawEncoder& GetEncoder() const { return m_encoder; }

		[[nodiscard]] DrawPhase GetDrawPhase() const { return m_drawPhase; }

		[[nodiscard]] Shader* GetShader() const { return m_shader; }

	private:
		friend class Node;
		friend class Scene;

		void SetScene(Scene* scene);

		void AddNode(Node* node);

		void RemoveNode(Node* node);
	};
}