import 'dart:convert';
import 'package:QuickSSH/classes/ServerCommand.dart';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';

class SecureStorageService {
  static const _storage = FlutterSecureStorage();
  static const _key = 'mc_commands_list';

  // SAVE: Converts list to JSON, then encrypts and stores it
  static Future<void> saveCommands(List<ServerCommand> commands) async {
    final String jsonData = jsonEncode(commands.map((c) => c.toMap()).toList());
    await _storage.write(key: _key, value: jsonData);
  }

  // LOAD: Decrypts data, then converts JSON back to Objects
  static Future<List<ServerCommand>> loadCommands() async {
    final String? encryptedData = await _storage.read(key: _key);

    if (encryptedData == null) return [];

    final List<dynamic> decodedData = jsonDecode(encryptedData);
    return decodedData.map((item) => ServerCommand.fromMap(item)).toList();
  }
}