Shader.h

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// File: Shader.h
// Description: Loads and handles shaers in OpenGL programs
// Author(s): Aidan Hartman (aidan.hartman@digipen.edu) Pair progamming with Ori
//            Ori Balashov (ori.balashov@digipen.edu) Pair progamming with Aidan
//            Marcelo Escamilla (marcelo.escamilla@digipen.edu) JSON serialization
// 2025 / 10 / 03
// (C) Digipen 2025
//   ____   __                  __  __
// /\__  _\/\ \                /\ \/\ \
// \/_/\ \/\ \ \___      __    \ \ \_\ \    ___   __  __    ____     __
//    \ \ \ \ \  _ `\  /'__`\   \ \  _  \  / __`\/\ \/\ \  /',__\  /'__`\
//     \ \ \ \ \ \ \ \/\  __/    \ \ \ \ \/\ \L\ \ \ \_\ \/\__, `\/\  __/
//      \ \_\ \ \_\ \_\ \____\    \ \_\ \_\ \____/\ \____/\/\____/\ \____\
//       \/_/  \/_/\/_/\/____/     \/_/\/_/\/___/  \/___/  \/___/  \/____/
#pragma once
#include <string>
#include "System/json.h"
 
using GLuint = unsigned int;
using Stream = sys::Json; // replace with whatever stream we are using
 
class Shader
{
 
public:
    Shader();
    Shader(const std::string& vertexFile, const std::string& fragmentFile);
    ~Shader();
 
    Shader(const Shader& other);
    Shader(Shader&& other) noexcept;
    auto operator=(const Shader& other) -> Shader&;
    auto operator=(Shader&& other) noexcept -> Shader&;
 
    auto activate() const -> void;
    auto deactivate() const -> void;

    auto setCamera() const -> void;
 
    auto ID() const -> GLuint
    {
        return shaderID;
    }
 
    auto loadFile(const std::string& vertexFile, const std::string& fragmentFile) -> void;
 
    auto load(Stream& stream) -> void;
    auto save(Stream& stream) const -> void;

    [[nodiscard]] auto name() const -> const std::string&
    {
        return _name;
    }

    auto name(const std::string& name) -> void
    {
        this->_name = name;
    }
 
    friend auto to_json(json& j, const Shader& a) -> void;
    friend auto from_json(const json& j, Shader& a) -> void;
 
private:
    std::string _name;
    std::string vertexPath;
    std::string fragmentPath;
    GLuint shaderID;
};