import 'package:latlong2/latlong.dart';

class AppConstants {
  AppConstants._();

  /// Default backend URL when none is configured.
  static const String defaultBackendUrl = 'http://localhost:8080';

  /// Default map center: Amsterdam.
  static const double defaultLat = 52.3676;
  static const double defaultLon = 4.9041;
  static final LatLng defaultCenter = LatLng(defaultLat, defaultLon);

  /// Zoom levels.
  static const double minZoom = 0;
  static const double maxZoom = 18;
  static const double defaultZoom = 13;
  static const double poiZoom = 16;
  static const double cityZoom = 12;

  /// Search debounce duration in milliseconds.
  static const int searchDebounceMs = 300;

  /// Maximum search history entries.
  static const int maxSearchHistory = 50;

  /// Settings keys.
  static const String settingBackendUrl = 'backend_url';
  static const String settingThemeMode = 'theme_mode';
}