services/storage_service.dart

import 'package:shared_preferences/shared_preferences.dart';

class StorageService {
  Future<void> saveRoutine(String key, String routine) async {
    final prefs = await SharedPreferences.getInstance();
    prefs.setString(key, routine);
  }

  Future<String?> getRoutine(String key) async {
    final prefs = await SharedPreferences.getInstance();
    return prefs.getString(key);
  }
}