#pragma once

#include "ui/ui_app.h"
#include "ui/app_registry.h"

/**
 * @brief Demo application - counter and brightness slider
 *
 * Demonstrates interactive UI components with touch input:
 * - Counter display with increment/decrement buttons
 * - Brightness slider
 */
class DemoApp : public UIApp {
public:
  DemoApp() = default;
  virtual ~DemoApp() = default;

  esp_err_t init(lv_obj_t* container) override;
  esp_err_t deinit(void) override;
  std::string get_name(void) const override;

private:
  // UI components
  lv_obj_t* _label_header= nullptr;
  lv_obj_t* _label_counter= nullptr;
  lv_obj_t* _btn_increment= nullptr;
  lv_obj_t* _btn_decrement= nullptr;
  lv_obj_t* _slider_brightness= nullptr;
  lv_obj_t* _label_slider_value= nullptr;

  // State
  int _counter= 0;

  // Event callbacks
  static void btn_increment_event_cb(lv_event_t* e);
  static void btn_decrement_event_cb(lv_event_t* e);
  static void slider_event_cb(lv_event_t* e);
};

/**
 * @brief AppDescriptor for DemoApp
 *
 * Registers the demo app with the AppRegistry and provides
 * icon rendering functionality.
 */
class DemoAppDescriptor : public AppDescriptor {
public:
  DemoAppDescriptor();
  void draw_icon(lv_obj_t* parent) override;

private:
  static DemoApp* _app_instance;
};