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

class AuthProvider extends ChangeNotifier {
  final AuthService _authService = AuthService();
  UserModel? _user;
  bool _isLoading = false;

  UserModel? get user => _user;
  bool get isLoading => _isLoading;
  bool get isAuthenticated => _user != null;

  AuthProvider() {
    _authService.userStream.listen((User? firebaseUser) async {
       if (firebaseUser != null) {
          _user = await _authService.getUser(firebaseUser.uid);
       } else {
          _user = null;
       }
       notifyListeners();
    });
  }

  Future<void> login(String email, String password) async {
    _isLoading = true;
    notifyListeners();
    try {
      _user = await _authService.login(email, password);
    } catch (e) {
      _isLoading = false;
      notifyListeners();
      rethrow;
    }
    _isLoading = false;
    notifyListeners();
  }

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