import 'package:shared_preferences/shared_preferences.dart';

class LocalPreference {
  // Keys
  static const String _keyLogin = "is_logged_in";
  static const String _keyUserId = "user_id";
  static const String _keyAccessToken = "access_token";
  static const String _keyRefreshToken = "refresh_token";
  static const String _keyOnBoarding = "on_boarding_done";

  // -------------------- LOGIN --------------------

  static Future<void> setLogin(bool value) async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setBool(_keyLogin, value);
  }

  static Future<bool> getLogin() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    return prefs.getBool(_keyLogin) ?? false;
  }

  // -------------------- USER ID --------------------

  static Future<void> setUserId(int id) async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setInt(_keyUserId, id);
  }

  static Future<int> getUserId() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    return prefs.getInt(_keyUserId) ?? 0;
  }

  // -------------------- ACCESS TOKEN --------------------

  static Future<void> setAccessToken(String token) async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setString(_keyAccessToken, token);
  }

  static Future<String> getAccessToken() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    return prefs.getString(_keyAccessToken) ?? "";
  }

  static Future<void> clearAccessToken() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.remove(_keyAccessToken);
  }

  // -------------------- REFRESH TOKEN --------------------

  static Future<void> setRefreshToken(String token) async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setString(_keyRefreshToken, token);
  }

  static Future<String> getRefreshToken() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    return prefs.getString(_keyRefreshToken) ?? "";
  }

  // -------------------- ONBOARDING --------------------

  static Future<void> setOnBoarding(bool value) async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setBool(_keyOnBoarding, value);
  }

  static Future<bool> getOnBoarding() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    return prefs.getBool(_keyOnBoarding) ?? true;
  }

  // -------------------- CLEAR --------------------

  /// Clears all user data EXCEPT onboarding preference
  /// Use this after logout to preserve onboarding state
  static Future<void> clearAllExceptOnBoarding() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();

    // Get onboarding value before clearing
    final bool onBoardingValue = prefs.getBool(_keyOnBoarding) ?? true;

    // Clear all data
    await prefs.clear();

    // Restore onboarding value
    await prefs.setBool(_keyOnBoarding, onBoardingValue);
  }
  /// Clears all data including onboarding
  /// Use this for complete reset
  static Future<void> clearAll() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.clear();
  }
}