feat: display user's real name with time-based greeting in header.

packages/smooth_app/lib/data_models/login_result.dart

@@ -9,11 +9,12 @@ enum LoginResultType { successful, unsuccessful, serverIssue, exception }
 
 /// Result of a log in attempt, more subtle than a `bool`.
 class LoginResult {
-  const LoginResult(this.type, {this.user, this.text});
+  const LoginResult(this.type, {this.user, this.userDetails, this.text});
 
   final LoginResultType type;
   final User? user;
   final String? text;
+  final UserDetails? userDetails;
 
   String getErrorMessage(final AppLocalizations appLocalizations) =>
       switch (type) {
@@ -62,6 +63,7 @@ class LoginResult {
           password: user.password,
           cookie: loginStatus.cookie,
         ),
+        userDetails: loginStatus.userDetails,
       );
     } catch (e) {
       return LoginResult(LoginResultType.exception, text: e.toString());

packages/smooth_app/lib/data_models/user_management_provider.dart

@@ -1,4 +1,5 @@
 import 'dart:async';
+import 'dart:convert';
 
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
@@ -13,6 +14,9 @@ class UserManagementProvider with ChangeNotifier {
   static const String _USER_ID = 'user_id';
   static const String _PASSWORD = 'pasword';
   static const String _COOKIE = 'user_cookie';
+  static const String _USER_DETAILS = 'user_details';
+
+  static UserDetails? globalUserDetails;
 
   /// Checks credentials and conditionally saves them.
   Future<LoginResult> login(
@@ -27,16 +31,31 @@ class UserManagementProvider with ChangeNotifier {
       return loginResult;
     }
     await putUser(loginResult.user!);
+    await _saveUserDetails(loginResult.userDetails);
     await credentialsInStorage();
     return loginResult;
   }
 
+  /// Saves user details to storage
+  Future<void> _saveUserDetails(UserDetails? userDetails) async {
+    globalUserDetails = userDetails;
+    if (userDetails != null) {
+      final String jsonString = jsonEncode(userDetails.toJson());
+      await DaoSecuredString.put(key: _USER_DETAILS, value: jsonString);
+    } else {
+      DaoSecuredString.remove(key: _USER_DETAILS);
+    }
+    notifyListeners();
+  }
+
   /// Deletes saved credentials from storage
   Future<bool> logout() async {
     OpenFoodAPIConfiguration.globalUser = null;
+    globalUserDetails = null;
     DaoSecuredString.remove(key: _USER_ID);
     DaoSecuredString.remove(key: _PASSWORD);
     DaoSecuredString.remove(key: _COOKIE);
+    DaoSecuredString.remove(key: _USER_DETAILS);
     notifyListeners();
     final bool contains = await credentialsInStorage();
     return !contains;
@@ -52,17 +71,20 @@ class UserManagementProvider with ChangeNotifier {
     String? effectiveUserId;
     String? effectivePassword;
     String? effectiveCookie;
+    String? userDetailsJson;
 
     try {
       effectiveUserId = userId ?? await DaoSecuredString.get(_USER_ID);
       effectivePassword = password ?? await DaoSecuredString.get(_PASSWORD);
       effectiveCookie = await DaoSecuredString.get(_COOKIE);
+      userDetailsJson = await DaoSecuredString.get(_USER_DETAILS);
     } on PlatformException {
       /// Decrypting the values can go wrong if, for example, the app was
       /// manually overwritten from an external apk.
       DaoSecuredString.remove(key: _USER_ID);
       DaoSecuredString.remove(key: _PASSWORD);
       DaoSecuredString.remove(key: _COOKIE);
+      DaoSecuredString.remove(key: _USER_DETAILS);
       Logs.e('Credentials query failed, you have been logged out');
     }
 
@@ -76,6 +98,17 @@ class UserManagementProvider with ChangeNotifier {
       cookie: effectiveCookie,
     );
     OpenFoodAPIConfiguration.globalUser = user;
+
+    // Restore complete UserDetails from JSON
+    if (userDetailsJson != null && userDetailsJson.isNotEmpty) {
+      try {
+        final Map<String, dynamic> json = jsonDecode(userDetailsJson);
+        globalUserDetails = UserDetails.fromJson(json);
+      } catch (e) {
+        Logs.e('Failed to parse UserDetails: $e');
+        DaoSecuredString.remove(key: _USER_DETAILS);
+      }
+    }
   }
 
   /// Checks if any credentials exist in storage
@@ -117,9 +150,10 @@ class UserManagementProvider with ChangeNotifier {
       return;
     }
 
-    /// Save the cookie if necessary
+    /// Save the cookie and user details if necessary
     if (user.cookie == null && loginResult.user?.cookie != null) {
-      putUser(loginResult.user!);
+      await putUser(loginResult.user!);
+      await _saveUserDetails(loginResult.userDetails);
     }
   }
 }

packages/smooth_app/lib/generic_lib/widgets/app_bars/logged_in/logged_in_app_bar_header.dart

@@ -1,6 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_svg/svg.dart';
+import 'package:openfoodfacts/openfoodfacts.dart';
 import 'package:provider/provider.dart';
+import 'package:smooth_app/data_models/user_management_provider.dart';
 import 'package:smooth_app/generic_lib/design_constants.dart';
 import 'package:smooth_app/generic_lib/widgets/app_bars/app_bar_constanst.dart';
 import 'package:smooth_app/l10n/app_localizations.dart';
@@ -16,12 +18,28 @@ class LoggedInAppBarHeader extends StatelessWidget {
 
   final String userId;
 
+  String _getGreeting(AppLocalizations appLocalizations) {
+    final int hour = DateTime.now().hour;
+    if (hour < 12) {
+      return appLocalizations.greet_good_morning;
+    } else if (hour < 17) {
+      return appLocalizations.greet_good_afternoon;
+    } else if (hour < 21) {
+      return appLocalizations.greet_good_evening;
+    } else {
+      return appLocalizations.greet_good_night;
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     final AppLocalizations appLocalizations = AppLocalizations.of(context);
     final SmoothColorsThemeExtension themeExtension = context
         .extension<SmoothColorsThemeExtension>();
 
+    final UserDetails? userDetails = UserManagementProvider.globalUserDetails;
+    final String name = userDetails?.name ?? userId;
+
     return ConstrainedBox(
       constraints: const BoxConstraints(minHeight: PROFILE_PICTURE_SIZE),
       child: Row(
@@ -33,8 +51,8 @@ class LoggedInAppBarHeader extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.start,
               spacing: VERY_SMALL_SPACE,
               children: <Widget>[
-                Text(
-                  userId,
+                AutoSizeText(
+                  '${_getGreeting(appLocalizations)} $name',
                   style: TextStyle(
                     color: themeExtension.secondaryNormal,
                     fontSize: 18.0,

packages/smooth_app/lib/l10n/app_en.arb

@@ -5744,5 +5744,9 @@
         "type": "String"
       }
     }
-  }
+  },
+  "greet_good_morning": "Good morning",
+  "greet_good_afternoon": "Good afternoon",
+  "greet_good_evening": "Good evening",
+  "greet_good_night": "Good night"
 }

packages/smooth_app/lib/l10n/app_localizations.dart

@@ -10785,6 +10785,30 @@ abstract class AppLocalizations {
   /// In en, this message translates to:
   /// **'{percent}%'**
   String percent_value(String percent);
+
+  /// No description provided for @greet_good_morning.
+  ///
+  /// In en, this message translates to:
+  /// **'Good morning'**
+  String get greet_good_morning;
+
+  /// No description provided for @greet_good_afternoon.
+  ///
+  /// In en, this message translates to:
+  /// **'Good afternoon'**
+  String get greet_good_afternoon;
+
+  /// No description provided for @greet_good_evening.
+  ///
+  /// In en, this message translates to:
+  /// **'Good evening'**
+  String get greet_good_evening;
+
+  /// No description provided for @greet_good_night.
+  ///
+  /// In en, this message translates to:
+  /// **'Good night'**
+  String get greet_good_night;
 }
 
 class _AppLocalizationsDelegate