#pragma once

#include <glm/glm.hpp>
#include <glm/gtc/quaternion.hpp>

struct Transform
{
	glm::vec3 position = glm::vec3(0.0f);
	glm::quat rotation = glm::quat(1.0f, 0.0f, 0.0f, 0.0f); // Identity quaternion
	float scale = 1.0f;

	glm::mat4 ToMatrix() const
	{
		// TODO: Optimize matrix construction
		glm::mat4 translation_mat = glm::translate(glm::mat4(1.0f), position);
		glm::mat4 rotation_mat = glm::mat4_cast(rotation);
		glm::mat4 scaling_mat = glm::scale(glm::mat4(1.0f), glm::vec3(scale));
		return translation_mat * rotation_mat * scaling_mat;
	}

	void SetAngles(const glm::vec3& angles_deg)
	{
		glm::vec3 angles_rad = glm::radians(angles_deg);
		rotation = glm::quat(angles_rad);
	}

	static Transform Lerp(const Transform& a, const Transform& b, float t)
	{
		Transform result;
		result.position = glm::mix(a.position, b.position, t);
		result.rotation = glm::slerp(a.rotation, b.rotation, t);
		result.scale = glm::mix(a.scale, b.scale, t);
		return result;
	}
};