Enhance User model with optional fields and update authentication methods to include profile picture and phone number

lib/models/user.dart

@@ -1,36 +1,49 @@
 import 'dart:convert';
 
 /// Model representing a user in the travel mate application.
-/// 
+///
 /// This class encapsulates user information including personal details
 /// and provides methods for serialization/deserialization with Firebase
 /// and JSON operations.
 class User {
   /// Unique identifier for the user (usually Firebase UID).
   final String? id;
-  
+
   /// User's last name.
   final String nom;
-  
+
   /// User's first name.
   final String prenom;
-  
+
   /// User's email address.
   final String email;
 
+  /// User's profile picture URL (optional).
+  final String? profilePictureUrl;
+
+  /// User's phone number (optional).
+  final String? phoneNumber;
+
+  /// Platform used for authentication (e.g., 'google', 'apple', 'email').
+  final String platform;
+
   /// Creates a new [User] instance.
-  /// 
-  /// [nom], [prenom], and [email] are required fields.
+  ///
+  /// [nom], [prenom], [email] and [platform] are required fields.
+  /// [profilePictureUrl] and [phoneNumber] are optional.
   /// [id] is optional and typically assigned by Firebase.
   User({
     this.id,
     required this.nom,
     required this.prenom,
     required this.email,
+    this.profilePictureUrl,
+    this.phoneNumber,
+    required this.platform,
   });
 
   /// Creates a [User] instance from a Map (useful for Firebase operations).
-  /// 
+  ///
   /// Handles null values gracefully by providing empty string defaults.
   factory User.fromMap(Map<String, dynamic> map) {
     return User(
@@ -38,11 +51,14 @@ class User {
       nom: map['nom'] ?? '',
       prenom: map['prenom'] ?? '',
       email: map['email'] ?? '',
+      profilePictureUrl: map['profilePictureUrl'],
+      phoneNumber: map['phoneNumber'],
+      platform: map['platform'] ?? '',
     );
   }
 
   /// Creates a [User] instance from a JSON string.
-  /// 
+  ///
   /// Parses the JSON and delegates to [fromMap] for object creation.
   factory User.fromJson(String jsonStr) {
     Map<String, dynamic> map = json.decode(jsonStr);
@@ -50,7 +66,7 @@ class User {
   }
 
   /// Converts the [User] instance to a Map (useful for Firebase operations).
-  /// 
+  ///
   /// Returns a map with all user properties for database storage.
   Map<String, dynamic> toMap() {
     return {
@@ -58,11 +74,14 @@ class User {
       'nom': nom,
       'prenom': prenom,
       'email': email,
+      'profilePictureUrl': profilePictureUrl,
+      'phoneNumber': phoneNumber,
+      'platform': platform,
     };
   }
 
   /// Converts the [User] instance to a JSON string.
-  /// 
+  ///
   /// Useful for API communications and data serialization.
   String toJson() {
     return json.encode(toMap());
@@ -72,7 +91,7 @@ class User {
   String get fullName => '$prenom $nom';
 
   /// Creates a copy of this user with optionally modified properties.
-  /// 
+  ///
   /// Allows updating specific fields while preserving others.
   /// Useful for state management and partial updates.
   User copyWith({
@@ -80,12 +99,18 @@ class User {
     String? nom,
     String? prenom,
     String? email,
+    String? profilePictureUrl,
+    String? phoneNumber,
+    String? platform,
   }) {
     return User(
       id: id ?? this.id,
       nom: nom ?? this.nom,
       prenom: prenom ?? this.prenom,
       email: email ?? this.email,
+      profilePictureUrl: profilePictureUrl ?? this.profilePictureUrl,
+      phoneNumber: phoneNumber ?? this.phoneNumber,
+      platform: platform ?? this.platform,
     );
   }
 
@@ -96,7 +121,7 @@ class User {
   }
 
   /// Compares users based on email address.
-  /// 
+  ///
   /// Two users are considered equal if they have the same email.
   @override
   bool operator ==(Object other) {
@@ -108,4 +133,3 @@ class User {
   @override
   int get hashCode => email.hashCode;
 }
-