#pragma once
#include <SDL3/SDL.h> // SDL_Renderer


#include "../Input/PointerStream.h"
#include <memory>
#include "../Commands/HistoryManager.h"

class AppLayer {
protected:
    static HistoryManager* history;
    bool isActive = false;
public:
    virtual ~AppLayer() = default;
    virtual void OnActivate() = 0;
    virtual void OnDeactivate() = 0;
    virtual bool IsActive() { return isActive; }

    virtual void OnEvent() {}
    virtual bool OnDown(std::shared_ptr<PointerStream> stream) { (void)stream; return false; } // true if consumed
    virtual bool OnScroll(SDL_MouseWheelEvent e) { (void)e; return false; }
    virtual void OnRender() {}

    static void SetHistory(HistoryManager* history) { AppLayer::history = history; }
};