import 'package:fluttery/fluttery.dart';

/// providing methods for managing persistent storage of key-value pairs.
abstract class Preferences implements Service {
  /// Stores a string value with the given [key].
  Future<void> setString(String key, String value);

  /// Retrieves the string value associated with the given [key].
  Future<String?> getString(String key);

  /// Stores an integer value with the given [key].
  Future<void> setInt(String key, int value);

  /// Retrieves the integer value associated with the given [key].
  Future<int?> getInt(String key);

  /// Stores a boolean value with the given [key].
  Future<void> setBool(String key, bool value);

  /// Retrieves the boolean value associated with the given [key].
  Future<bool?> getBool(String key);

  /// Stores a double value with the given [key].
  Future<void> setDouble(String key, double value);

  /// Retrieves the double value associated with the given [key].
  Future<double?> getDouble(String key);

  /// Stores a list of strings with the given [key].
  Future<void> setStringList(String key, List<String> value);

  /// Retrieves the list of strings associated with the given [key].
  Future<List<String>?> getStringList(String key);

  /// Removes the key-value pair associated with the given [key].
  Future<void> remove(String key);

  /// Clears all key-value pairs in the preferences.
  Future<void> clear();
}