#include "apps/shutdown_app.h"
#include "esp_log.h"

#define TAG "ShutdownApp"

ShutdownApp::ShutdownApp(std::string message)
  : _message(message.empty() ? "System Shutting Down..." : message) { }

esp_err_t ShutdownApp::init(lv_obj_t* container) {
  if (!container) {
    ESP_LOGE(TAG, "Container is null");
    return ESP_ERR_INVALID_ARG;
  }

  _container = container;
  ESP_LOGI(TAG, "Initializing shutdown app with message: %s", _message.c_str());

  // Main message label
  _label_message = lv_label_create(_container);
  lv_label_set_text(_label_message, _message.c_str());
  lv_obj_set_style_text_color(_label_message, lv_color_white(), 0);
  lv_obj_align(_label_message, LV_ALIGN_CENTER, 0, 0);

  // Optional: Add spinner animation
  lv_obj_t* spinner = lv_spinner_create(_container);
  lv_obj_set_size(spinner, 80, 80);
  lv_obj_align(spinner, LV_ALIGN_CENTER, 0, 80);
  lv_obj_set_style_arc_color(spinner, lv_color_white(), LV_PART_INDICATOR);

  ESP_LOGI(TAG, "Shutdown app initialized successfully");
  return ESP_OK;
}

esp_err_t ShutdownApp::deinit(void) {
  ESP_LOGI(TAG, "Deinitializing shutdown app");
  _label_message = nullptr;
  return ESP_OK;
}

std::string ShutdownApp::get_name(void) const {
  return "Shutdown";
}

// ShutdownAppDescriptor implementation
ShutdownApp* ShutdownAppDescriptor::_app_instance = nullptr;

ShutdownAppDescriptor::ShutdownAppDescriptor()
  : AppDescriptor("Shutdown", nullptr) {
  // Create singleton app instance with default message
  if (!_app_instance) {
    _app_instance = new ShutdownApp();
  }

  // it's only used during system shutdown, not as a user-launchable app
}

void ShutdownAppDescriptor::draw_icon(lv_obj_t* parent) {
  // Create a simple icon (not normally shown in nav bar)
  lv_obj_t* icon_label = lv_label_create(parent);
  lv_label_set_text(icon_label, LV_SYMBOL_POWER "\nShutdown");
  lv_obj_set_style_text_color(icon_label, lv_color_white(), 0);
  lv_obj_set_style_text_align(icon_label, LV_TEXT_ALIGN_CENTER, 0);
  lv_obj_center(icon_label);
}