#pragma once

#include <vector>
#include <utility>
#include <string>
#include <memory>
#include <SDL3/SDL.h>
#include "utils.h"
#include "UIMessage.h"

// --- Forward Declarations ---
class Text;
class MenuOption; // <-- Añadido

class ServiceMenu
{
public:
    // Enums públicas para que MenuOption.h pueda usarlas.
    enum class Aspect
    {
        ASPECT1,
        ASPECT2
    };
    enum class SettingsGroup
    {
        VIDEO,
        AUDIO,
        SETTINGS,
        SYSTEM,
        MAIN
    };
    enum class GroupAlignment
    {
        CENTERED,
        LEFT
    };

    static void init();
    static void destroy();
    static ServiceMenu *get();
    void toggle();
    void render();
    void update();
    void reset();
    void setSelectorUp();
    void setSelectorDown();
    void adjustOption(bool adjust_up);
    void selectOption();
    void moveBack();
    bool isEnabled() const { return enabled_; }
    void setResizeAnimationSteps(int steps) { resize_anim_steps_ = steps; }

private:
    // Definición de las constantes estáticas
    static constexpr const char *MENU_SOUND_ = "clock.wav";
    static constexpr size_t OPTIONS_HORIZONTAL_PADDING_ = 20;
    static constexpr size_t MIN_WIDTH_ = 220;
    static constexpr size_t MIN_GAP_OPTION_VALUE_ = 20;
    static constexpr float RESET_TEXT_POS_Y_ = 39.0f;

    // --- Tipos internos ---
    using OptionPairs = std::vector<std::pair<std::string, std::string>>;

    // --- Variables internas ---
    bool enabled_ = false;
    SDL_FRect rect_;
    std::shared_ptr<Text> element_text_;
    std::shared_ptr<Text> title_text_;
    size_t selected_ = 0;
    Uint32 counter_ = 0;

    // Usamos punteros únicos para gestionar la vida de los objetos polimórficos.
    std::vector<std::unique_ptr<MenuOption>> options_;
    // Mostramos punteros raw (no propietarios) de las opciones filtradas.
    std::vector<MenuOption *> display_options_;

    OptionPairs option_pairs_;
    SettingsGroup current_settings_group_;
    SettingsGroup previous_settings_group_;
    Aspect aspect_ = Aspect::ASPECT1;
    std::string title_;
    size_t main_menu_selected_ = 0;

    // Variables de aspecto y layout...
    Color bg_color_ = SERV_MENU_BG_COLOR;
    Color title_color_ = SERV_MENU_TITLE_COLOR;
    Color text_color_ = SERV_MENU_TEXT_COLOR;
    Color selected_color_ = SERV_MENU_SELECTED_COLOR;
    size_t width_;
    size_t height_;
    size_t options_height_;
    size_t options_padding_;
    size_t options_y_;
    size_t title_height_;
    size_t title_padding_;
    size_t upper_height_;
    size_t lower_height_;
    size_t lower_padding_;

    // Variables de animación de resize...
    SDL_FRect rect_anim_from_{};
    SDL_FRect rect_anim_to_{};
    int resize_anim_step_ = 0;
    int resize_anim_steps_ = 8;
    bool resizing_ = false;

    // Mensaje de reinicio
    std::unique_ptr<UIMessage> restart_message_ui_;
    bool last_pending_changes_ = false;

    // Anchos precalculados
    int group_menu_widths_[5];

    // --- Métodos internos ---

    // Anclaje y aspecto
    void setAnchors();
    Color getSelectedColor() const;
    void setOptionsPosition();
    void resize();
    void updateResizeAnimation();

    // Gestión de opciones
    void initializeOptions();
    OptionPairs getOptionPairs(SettingsGroup group) const;
    std::vector<MenuOption *> getOptionsByGroup(SettingsGroup group);
    MenuOption *getOptionByCaption(const std::string &caption);

    // Lógica de menú
    void applySettings(SettingsGroup group);
    void updateMenu(SettingsGroup group);
    void AdjustListValues();

    // Utilidades
    void updateCounter();
    int findLargestGroupSize() const;
    GroupAlignment getGroupAlignment(SettingsGroup group) const;
    std::string settingsGroupToString(SettingsGroup group) const;
    void precalculateMenuWidths();
    int getMenuWidthForGroup(SettingsGroup group) const;
    void playMenuSound();

    // --- Patrón Singleton ---
    ServiceMenu();
    ~ServiceMenu() = default;
    ServiceMenu(const ServiceMenu &) = delete;
    ServiceMenu &operator=(const ServiceMenu &) = delete;
    static ServiceMenu *instance_;
};