#ifndef _H_DRAWABLE_H
#define _H_DRAWABLE_H

#include <vector>
#include <variant>
#include <glm/glm.hpp>
#include <string>

using UniformValue = std::variant<
	int,
	bool,
	float,
	double,
	glm::mat4,
	glm::vec2
>;

struct Uniform {
	std::string name;
	UniformValue value;
};

class Drawable
{
public:
	virtual void draw() = 0;
	const unsigned getShaderID() const { return shaderID; }
	const std::vector<Uniform>& getUniforms() { return uniforms; }
	const std::vector<Uniform>& getOneShotUniforms() { return oneShotUniforms; }
	void clearOneShot() { oneShotUniforms.clear(); }
	void clearUniforms() { uniforms.clear(); }
protected:
	unsigned shaderID;
	template <typename T>
	void editUniform(const std::string& name, T value)
	{
			uniforms.emplace_back(Uniform {name, value});
	}

	template <typename T>
	void editUniformOnce(const std::string& name, T value)
	{
			oneShotUniforms.emplace_back(Uniform {name, value});
	}
private:
	std::vector<Uniform> uniforms;
	std::vector<Uniform> oneShotUniforms;
};

#endif // _H_DRAWABLE_H