#pragma once

#include "raylib.h"
#include <unordered_map>
#include <string>

struct ShaderSource {
    std::string vsPath;
    std::string fsPath;
};

class ShaderManager
{
public:
    ShaderManager();
    ~ShaderManager();

    // Load a shader from vertex and fragment shader files
    // Returns a unique ID for the shader, or 0 on failure
    unsigned int Load(const std::string& vsPath, const std::string& fsPath);

    // Unload a shader by ID
    void Unload(unsigned int id);

    // Get a shader by ID (returns nullptr if not found)
    Shader* Get(unsigned int id);

    // Get source metadata for a shader if available
    const ShaderSource* GetSource(unsigned int id) const;

    // Unload all shaders
    void UnloadAll();

private:
    std::unordered_map<unsigned int, Shader> shaders;
    std::unordered_map<unsigned int, ShaderSource> shaderSources;
    unsigned int nextId;
    bool unloaded;
};