#pragma once

#include "page.h"
#include <memory>
#include <vector>

struct AppState;

class PageManager {
public:
    PageManager() = default;

    void push(AppState& state, std::unique_ptr<Page> page);
    void pop(AppState& state);
    void popToRoot(AppState& state);
    void replace(AppState& state, std::unique_ptr<Page> page);

    Page* current() const;
    std::size_t depth() const;

    void handleEvent(const SDL_Event& event);
    void update(float dt);
    void render(SDL_Renderer* renderer);

private:
    std::vector<std::unique_ptr<Page>> stack_;
};