import 'dart:convert';

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

class AuthProvider with ChangeNotifier {
  final AuthService _authService;

  String _token = '';
  bool _isLoading = false;
  String _error = '';

  AuthProvider({AuthService? authService})
    : _authService = authService ?? AuthService();

  String get token => _token;
  bool get isLoggedIn => _token.isNotEmpty;
  bool get isLoading => _isLoading;
  String get error => _error;

  Future<void> login(String login, String password) async {
    _isLoading = true;
    _error = '';
    notifyListeners();

    try {
      var response = await _authService.login(login, password);
      var data = jsonDecode(response);
      _token = data['token'];
      notifyListeners();
    } catch (e) {
      _error = e.toString();
      notifyListeners();
      rethrow;
    } finally {
      _isLoading = false;
      notifyListeners();
    }
  }

  Future<void> register(
    String login,
    String password,
    String secretKeyHash,
  ) async {
    _isLoading = true;
    _error = '';
    notifyListeners();

    try {
      await _authService.register(login, password, secretKeyHash);
      notifyListeners();
    } catch (e) {
      _error = e.toString();
      notifyListeners();
      rethrow;
    } finally {
      _isLoading = false;
      notifyListeners();
    }
  }

  void setError(String message) {
    _error = message;
    notifyListeners();
  }

  void logout() {
    _token = '';
    notifyListeners();
  }
}