#pragma once

#include <map>
#include <string>

#include <GL/glew.h>

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

class ShaderProgram
{
	bool mUniformLocationsNeedRefresh;
	std::map<const std::string, GLint> UniformLocationCache;
	static GLint my_checkCompileSuccess (const GLuint id, const GLenum type);
	public:
		GLuint ID;
		ShaderProgram (void);
		ShaderProgram (const std::string&, const std::string&, const std::string&);
		GLint getCachedLoc (const std::string&);
		void RefreshUniformLocations (void);
		void Use (void);
		void Bool (const std::string&, const bool&value);
		void Float (const std::string&, const float&value);
		void Int (const std::string&, const int&value);
		void Vec2 (const std::string&, const glm::vec2& value);
		void Vec3 (const std::string&, const glm::vec3& value);
		void Vec4 (const std::string&, const glm::vec4& value);
		void Mat2 (const std::string&, const glm::mat2& value);
		void Mat3 (const std::string&, const glm::mat3& value);
		void Mat4 (const std::string&, const glm::mat4& value);

		GLuint CompileShaderBuffer (const std::string&, const GLenum type);
		GLuint CompileShaderPath (const std::string&, const GLenum type);
		GLint LinkProgram (void);
};