import 'package:flutter/material.dart';

class LoginController with ChangeNotifier {
  final TextEditingController emailController = TextEditingController();
  final TextEditingController passwordController = TextEditingController();
  
  bool _isLoading = false;
  bool _obscurePassword = true;
  String? _emailError;
  String? _passwordError;

  bool get isLoading => _isLoading;
  bool get obscurePassword => _obscurePassword;
  String? get emailError => _emailError;
  String? get passwordError => _passwordError;

  void togglePasswordVisibility() {
    _obscurePassword = !_obscurePassword;
    notifyListeners();
  }

  String? validateEmail(String? value) {
    if (value == null || value.isEmpty) {
      return 'Por favor, insira o seu email';
    }
    final emailRegex = RegExp(r'^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$');
    if (!emailRegex.hasMatch(value)) {
      return 'Por favor, insira um email válido';
    }
    return null;
  }

  String? validatePassword(String? value) {
    if (value == null || value.isEmpty) {
      return 'Por favor, insira a sua password';
    }
    if (value.length < 6) {
      return 'A password deve ter pelo menos 6 caracteres';
    }
    return null;
  }

  Future<bool> login() async {
    _emailError = validateEmail(emailController.text);
    _passwordError = validatePassword(passwordController.text);

    if (_emailError != null || _passwordError != null) {
      notifyListeners();
      return false;
    }

    _isLoading = true;
    notifyListeners();

    try {
      await Future.delayed(const Duration(seconds: 2));
      
      _isLoading = false;
      notifyListeners();
      return true;
    } catch (e) {
      _isLoading = false;
      _emailError = 'Erro no login. Tente novamente.';
      notifyListeners();
      return false;
    }
  }

  void dispose() {
    emailController.dispose();
    passwordController.dispose();
  }
}