#pragma once

#include <renderer/rhi/rhi.h>
#include <glad/glad.h>

namespace extra2d {

// 前向声明
class GLShader;

/**
 * @brief OpenGL 管线实现
 */
class GLPipeline : public RHIPipeline {
public:
    explicit GLPipeline(const PipelineDesc& desc);
    ~GLPipeline() override;

    bool create();
    void destroy();

    void bind() override;
    void unbind() override;

    ShaderHandle getVertexShader() const override;
    ShaderHandle getFragmentShader() const override;
    const VertexLayout& getVertexLayout() const override;
    bool isValid() const override;

    const PipelineDesc& getDesc() const { return desc_; }
    GLuint getGLVAO() const { return vao_; }
    
    // 获取 shader program ID（用于设置 uniform）
    GLuint getGLProgram() const { return shaderProgram_; }
    
    // 设置 shader program ID（在创建时调用）
    void setGLProgram(GLuint program) { shaderProgram_ = program; }

private:
    PipelineDesc desc_;
    GLuint vao_;
    GLuint shaderProgram_ = 0;
};

} // namespace extra2d