#pragma once

#include "ui/apps/app.h"
#include "ui/apps/travel/settings/settings_handler.h"
#include "ui/apps/travel/ui/main_handler.h"
#include "ui/apps/travel/ui/settings_handler.h"
#include "io/nvs_handler.h"
#include "network/network.h"
#include <string>
#include <memory>

// Forward declarations
namespace travel {
class MainUIHandler;
class SettingsUIHandler;
class SettingHandler;
}

/**
 * @brief Travel App - MTR Station Arrival Time Display
 *
 * Displays estimated arrival times for configured MTR routes.
 * Features:
 * - Support for all MTR lines from assets
 * - Save up to 5 (station, destination) route pairs
 * - Poll every 30 seconds (configurable 10-120s)
 * - Traditional Chinese by default
 * - E-ink optimized (no animations, static layout)
 * - Web-based configuration via QR code
 */
class TravelApp : public UIApp {
public:
  TravelApp();
  ~TravelApp() override;

  esp_err_t init(lv_obj_t* container, InteractionHandler* interaction_handler) override;
  esp_err_t deinit(void) override;
  std::string get_name(void) const override;
  bool on_back_button_pressed(void) override;

  // Set network handler for API calls
  void set_network_handler(NetworkHandler* network_handler);

private:
  // UI handlers
  std::unique_ptr<travel::MainUIHandler> main_ui_handler_;
  std::unique_ptr<travel::SettingsUIHandler> settings_ui_handler_;

  // Current page tracking
  enum class Page {
    MAIN,
    SETTINGS
  };
  Page current_page_;

  // Settings handler (shared across handlers)
  std::unique_ptr<travel::SettingHandler> setting_handler_;

  // Network handler (not owned, set externally)
  NetworkHandler* network_handler_;

  // Interaction handler (not owned)
  InteractionHandler* interaction_handler_;

  static constexpr const char* NVS_NAMESPACE = "travel_app";

  // Private methods
  void show_settings_page();

  // UI callback forwarders
  static void on_settings_button_clicked_static(void* user_data);
};