import 'package:flutter/foundation.dart';
import '../services/auth_service.dart';

class AuthProvider with ChangeNotifier {
  final AuthService _authService = AuthService();

  bool _isLoading = false;
  String? _error;

  bool get isLoading => _isLoading;
  bool get isAuthenticated => _authService.isAuthenticated;
  String? get token => _authService.token;
  String? get username => _authService.username;
  String? get error => _error;

  Future<void> init() async {
    _isLoading = true;
    notifyListeners();

    await _authService.loadStoredAuth();

    _isLoading = false;
    notifyListeners();
  }

  Future<bool> login(String username, String password) async {
    _isLoading = true;
    _error = null;
    notifyListeners();

    final success = await _authService.login(username, password);

    if (!success) {
      _error = _authService.lastError ?? 'Login failed';
    }

    _isLoading = false;
    notifyListeners();

    return success;
  }

  Future<void> logout() async {
    await _authService.logout();
    notifyListeners();
  }

  void clearError() {
    _error = null;
    notifyListeners();
  }
}