#pragma once

#include <algorithm>  // para std::clamp
#include <functional>
#include <memory>
#include <string>
#include <vector>

#include "lang.h"             // Para las traducciones
#include "options.h"          // Para acceder a las variables de configuración
#include "section.hpp"        // Para las acciones como Quit o Reset
#include "text.h"             // Para poder calcular el ancho del texto
#include "ui/service_menu.h"  // Necesitamos las enums como SettingsGroup

// --- Interfaz Base para todas las Opciones del Menú ---

class MenuOption {
    public:
        enum class Behavior {
            ADJUST,
            SELECT
        };

        MenuOption(std::string caption, ServiceMenu::SettingsGroup group, bool hidden = false)
            : caption_(std::move(caption)), group_(group), hidden_(hidden) {}

        virtual ~MenuOption() = default;

        [[nodiscard]] auto getCaption() const -> const std::string & { return caption_; }
        [[nodiscard]] auto getGroup() const -> ServiceMenu::SettingsGroup { return group_; }
        [[nodiscard]] auto isHidden() const -> bool { return hidden_; }
        void setHidden(bool hidden) { hidden_ = hidden; }

        [[nodiscard]] virtual auto getBehavior() const -> Behavior = 0;
        [[nodiscard]] virtual auto getValueAsString() const -> std::string { return ""; }
        virtual void adjustValue(bool adjust_up) {}
        [[nodiscard]] virtual auto getTargetGroup() const -> ServiceMenu::SettingsGroup { return ServiceMenu::SettingsGroup::MAIN; }
        virtual void executeAction() {}

        // Método virtual para que cada opción calcule el ancho de su valor más largo.
        virtual auto getMaxValueWidth(Text *text_renderer) const -> int { return 0; }

    protected:
        std::string caption_;
        ServiceMenu::SettingsGroup group_;
        bool hidden_;
};

// --- Clases Derivadas ---

class BoolOption : public MenuOption {
    public:
        BoolOption(const std::string &cap, ServiceMenu::SettingsGroup grp, bool *var)
            : MenuOption(cap, grp), linked_variable_(var) {}

        [[nodiscard]] auto getBehavior() const -> Behavior override { return Behavior::ADJUST; }
        [[nodiscard]] auto getValueAsString() const -> std::string override {
            return *linked_variable_ ? Lang::getText("[SERVICE_MENU] ON") : Lang::getText("[SERVICE_MENU] OFF");
        }
        void adjustValue(bool /*adjust_up*/) override {
            *linked_variable_ = !*linked_variable_;
        }
        auto getMaxValueWidth(Text *text_renderer) const -> int override {
            return std::max(
                text_renderer->lenght(Lang::getText("[SERVICE_MENU] ON"), -2),
                text_renderer->lenght(Lang::getText("[SERVICE_MENU] OFF"), -2));
        }

    private:
        bool *linked_variable_;
};

class IntOption : public MenuOption {
    public:
        IntOption(const std::string &cap, ServiceMenu::SettingsGroup grp, int *var, int min, int max, int step)
            : MenuOption(cap, grp), linked_variable_(var), min_value_(min), max_value_(max), step_value_(step) {}

        [[nodiscard]] auto getBehavior() const -> Behavior override { return Behavior::ADJUST; }
        [[nodiscard]] auto getValueAsString() const -> std::string override { return std::to_string(*linked_variable_); }
        void adjustValue(bool adjust_up) override {
            int new_value = *linked_variable_ + (adjust_up ? step_value_ : -step_value_);
            *linked_variable_ = std::clamp(new_value, min_value_, max_value_);
        }
        auto getMaxValueWidth(Text *text_renderer) const -> int override {
            int max_width = 0;

            // Iterar por todos los valores posibles en el rango
            for (int value = min_value_; value <= max_value_; value += step_value_) {
                int width = text_renderer->lenght(std::to_string(value), -2);
                max_width = std::max(max_width, width);
            }

            return max_width;
        }

    private:
        int *linked_variable_;
        int min_value_, max_value_, step_value_;
};

class ListOption : public MenuOption {
    public:
        ListOption(const std::string &cap, ServiceMenu::SettingsGroup grp, std::vector<std::string> values, std::function<std::string()> current_value_getter, std::function<void(const std::string &)> new_value_setter)
            : MenuOption(cap, grp),
              value_list_(std::move(values)),
              getter_(std::move(current_value_getter)),
              setter_(std::move(new_value_setter)) {
            sync();
        }

        void sync() {
            std::string current_value = getter_();
            for (size_t i = 0; i < value_list_.size(); ++i) {
                if (value_list_[i] == current_value) {
                    list_index_ = i;
                    return;
                }
            }
        }

        [[nodiscard]] auto getBehavior() const -> Behavior override { return Behavior::ADJUST; }
        [[nodiscard]] auto getValueAsString() const -> std::string override {
            return value_list_.empty() ? "" : value_list_[list_index_];
        }
        void adjustValue(bool adjust_up) override {
            if (value_list_.empty()) {
                return;
            }
            size_t size = value_list_.size();
            list_index_ = (adjust_up) ? (list_index_ + 1) % size
                                      : (list_index_ + size - 1) % size;
            setter_(value_list_[list_index_]);
        }
        auto getMaxValueWidth(Text *text_renderer) const -> int override {
            int max_w = 0;
            for (const auto &val : value_list_) {
                max_w = std::max(max_w, text_renderer->lenght(val, -2));
            }
            return max_w;
        }

    private:
        std::vector<std::string> value_list_;
        std::function<std::string()> getter_;
        std::function<void(const std::string &)> setter_;
        size_t list_index_{0};
};

class FolderOption : public MenuOption {
    public:
        FolderOption(const std::string &cap, ServiceMenu::SettingsGroup grp, ServiceMenu::SettingsGroup target)
            : MenuOption(cap, grp), target_group_(target) {}

        [[nodiscard]] auto getBehavior() const -> Behavior override { return Behavior::SELECT; }
        [[nodiscard]] auto getTargetGroup() const -> ServiceMenu::SettingsGroup override { return target_group_; }

    private:
        ServiceMenu::SettingsGroup target_group_;
};

class ActionOption : public MenuOption {
    public:
        ActionOption(const std::string &cap, ServiceMenu::SettingsGroup grp, std::function<void()> action, bool hidden = false)
            : MenuOption(cap, grp, hidden), action_(std::move(action)) {}

        [[nodiscard]] auto getBehavior() const -> Behavior override { return Behavior::SELECT; }
        void executeAction() override {
            if (action_) {
                action_();
            }
        }

    private:
        std::function<void()> action_;
};