import 'package:flutter/foundation.dart';

class AmRegistrationData extends ChangeNotifier {
  // Step 1: Identity Info
  String firstName = '';
  String lastName = '';
  String streetAddress = ''; // Nouveau pour N° et Rue
  String postalCode = '';    // Nouveau
  String city = '';          // Nouveau
  String phone = '';
  String email = '';
  String password = '';
  // String? photoPath; // Déplacé ou géré à l'étape 2
  // bool photoConsent = false; // Déplacé ou géré à l'étape 2

  // Step 2: Professional Info
  String? photoPath; // Ajouté pour l'étape 2
  bool photoConsent = false; // Ajouté pour l'étape 2
  DateTime? dateOfBirth;
  String birthCity = ''; // Nouveau
  String birthCountry = ''; // Nouveau
  // String placeOfBirth = ''; // Remplacé par birthCity et birthCountry
  String nir = ''; // Numéro de Sécurité Sociale
  String agrementNumber = ''; // Numéro d'agrément
  int? capacity; // Number of children the AM can look after

  // Step 3: Presentation & CGU
  String presentationText = '';
  bool cguAccepted = false;

  // --- Methods to update data and notify listeners ---

  void updateIdentityInfo({
    String? firstName,
    String? lastName,
    String? streetAddress, // Modifié
    String? postalCode,    // Nouveau
    String? city,          // Nouveau
    String? phone,
    String? email,
    String? password,
  }) {
    this.firstName = firstName ?? this.firstName;
    this.lastName = lastName ?? this.lastName;
    this.streetAddress = streetAddress ?? this.streetAddress; // Modifié
    this.postalCode = postalCode ?? this.postalCode;          // Nouveau
    this.city = city ?? this.city;                            // Nouveau
    this.phone = phone ?? this.phone;
    this.email = email ?? this.email;
    this.password = password ?? this.password;
    // if (photoPath != null || this.photoPath != null) { // Supprimé de l'étape 1
    //   this.photoPath = photoPath;
    // }
    // this.photoConsent = photoConsent ?? this.photoConsent; // Supprimé de l'étape 1
    notifyListeners();
  }

  void updateProfessionalInfo({
    String? photoPath,
    bool? photoConsent,
    DateTime? dateOfBirth,
    String? birthCity, // Nouveau
    String? birthCountry, // Nouveau
    // String? placeOfBirth, // Remplacé
    String? nir,
    String? agrementNumber,
    int? capacity,
  }) {
    // Allow setting photoPath to null explicitly
    if (photoPath != null || this.photoPath != null) {
      this.photoPath = photoPath;
    }
    this.photoConsent = photoConsent ?? this.photoConsent;
    this.dateOfBirth = dateOfBirth ?? this.dateOfBirth;
    this.birthCity = birthCity ?? this.birthCity; // Nouveau
    this.birthCountry = birthCountry ?? this.birthCountry; // Nouveau
    // this.placeOfBirth = placeOfBirth ?? this.placeOfBirth; // Remplacé
    this.nir = nir ?? this.nir;
    this.agrementNumber = agrementNumber ?? this.agrementNumber;
    this.capacity = capacity ?? this.capacity;
    notifyListeners();
  }

  void updatePresentationAndCgu({
    String? presentationText,
    bool? cguAccepted,
  }) {
    this.presentationText = presentationText ?? this.presentationText;
    this.cguAccepted = cguAccepted ?? this.cguAccepted;
    notifyListeners();
  }

  // --- Getters for validation or display ---
  bool get isStep1Complete =>
      firstName.isNotEmpty &&
      lastName.isNotEmpty &&
      streetAddress.isNotEmpty && // Modifié
      postalCode.isNotEmpty &&    // Nouveau
      city.isNotEmpty &&          // Nouveau
      phone.isNotEmpty &&
      email.isNotEmpty;
      // password n'est pas requis à l'inscription (défini après validation par lien email)

  bool get isStep2Complete =>
      // photoConsent is mandatory if a photo is system-required, otherwise optional.
      // For now, let's assume if photoPath is present, consent should ideally be true.
      // Or, make consent always mandatory if photo section exists.
      // Based on new mockup, photo is present, so consent might be implicitly or explicitly needed.
      (photoPath != null ? photoConsent == true : true) && // Ajuster selon la logique de consentement désirée
      dateOfBirth != null &&
      birthCity.isNotEmpty &&
      birthCountry.isNotEmpty &&
      nir.isNotEmpty && // Basic check, could add validation
      agrementNumber.isNotEmpty &&
      capacity != null && capacity! > 0;

  bool get isStep3Complete =>
      // presentationText is optional as per CDC (message au gestionnaire)
      cguAccepted;

  bool get isRegistrationComplete =>
      isStep1Complete && isStep2Complete && isStep3Complete;

  @override
  String toString() {
    return 'AmRegistrationData('
        'firstName: $firstName, lastName: $lastName, '
        'streetAddress: $streetAddress, postalCode: $postalCode, city: $city, '
        'phone: $phone, email: $email, '
        // 'photoPath: $photoPath, photoConsent: $photoConsent, ' // Commenté car déplacé/modifié
        'dateOfBirth: $dateOfBirth, birthCity: $birthCity, birthCountry: $birthCountry, '
        'nir: $nir, agrementNumber: $agrementNumber, capacity: $capacity, '
        'photoPath (step2): $photoPath, photoConsent (step2): $photoConsent, '
        'presentationText: $presentationText, cguAccepted: $cguAccepted)';
  }
}