import 'package:shared_preferences/shared_preferences.dart';

class UserPreferences {
  static List<String> _savedLocations = [];
  static SharedPreferences? preferences;
  static Future<void> init() async {
    preferences = await SharedPreferences.getInstance();
    _savedLocations = preferences!.getStringList('savedLocations') ?? [];
  }

  static List<String> getSavedLocations() {
    return _savedLocations;
  }

  static List<String> saveNewLocation(String name, double lat, double lon) {
    _savedLocations.add(name);
    preferences!.setStringList('savedLocations', _savedLocations);
    preferences!.setDouble("$name-lat", lat);
    preferences!.setDouble("$name-lon", lon);
    return getSavedLocations();
  }

  static List<String> deleteLocation(String name) {
    preferences!.remove("$name-lat");
    preferences!.remove("$name-lon");
    _savedLocations.remove(name);
    preferences!.remove(name);
    return getSavedLocations();
  }

  static getLat(String name) {
    return preferences!.getDouble("$name-lat");
  }

  static getLon(String name) {
    return preferences!.getDouble("$name-lon");
  }
}