profile: Show date joined on profile page

Author: Khader-1

lib/widgets/profile.dart

@@ -413,9 +413,30 @@ class _ProfileDataTable extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final store = PerAccountStoreWidget.of(context);
+    final zulipLocalizations = ZulipLocalizations.of(context);
 
     List<Widget> items = [];
 
+    final date = DateTime.tryParse(user.dateJoined);
+    if (date != null) {
+      final localDate = date.toLocal();
+      final formattedDate = DateFormat.yMMMd().format(localDate);
+      final label = user.isImportedStub
+        ? zulipLocalizations.profileDateImportedLabel
+        : zulipLocalizations.profileDateJoinedLabel;
+      items.add(Row(
+        crossAxisAlignment: CrossAxisAlignment.baseline,
+        textBaseline: localizedTextBaseline(context),
+        children: [
+          SizedBox(width: 100,
+            child: Text(style: _TextStyles.customProfileFieldLabel(context),
+              label)),
+          const SizedBox(width: 8),
+          Flexible(child: _TextWidget(text: formattedDate)),
+        ]));
+      items.add(const SizedBox(height: 8));
+    }
+
     final profileData = user.profileData;
     for (final realmField in store.customProfileFields) {
       final profileField = profileData?[realmField.id];
@@ -436,8 +457,6 @@ class _ProfileDataTable extends StatelessWidget {
       items.add(const SizedBox(height: 8));
     }
 
-    if (items.isEmpty) return const SizedBox.shrink();
-
     return Column(children: [
       const SizedBox(height: 16),
       ...items

test/widgets/profile_test.dart

@@ -201,6 +201,28 @@ void main() {
     });
   });
 
+  group('date joined in profile data table', () {
+    // The date is formatted in the user's local timezone, which we can't
+    // control in tests; accept outputs for any possible timezone.
+    // See comments in "show dates" test in message_list_test.dart.
+
+    testWidgets('shows date joined label and date', (tester) async {
+      final user = eg.user(dateJoined: '2024-02-24T11:18:00+00:00');
+      await setupPage(tester, users: [user], pageUserId: user.userId);
+      check(find.text('Date joined')).findsOne();
+      check(find.textContaining(RegExp('Feb 2[34], 2024'))).findsOne();
+    });
+
+    testWidgets('shows imported on label when isImportedStub', (tester) async {
+      final user = eg.user(
+        dateJoined: '2024-02-24T11:18:00+00:00',
+        isImportedStub: true);
+      await setupPage(tester, users: [user], pageUserId: user.userId);
+      check(find.text('Imported on')).findsOne();
+      check(find.textContaining(RegExp('Feb 2[34], 2024'))).findsOne();
+    });
+  });
+
   group('custom profile fields', () {
     testWidgets('page builds; profile page renders with profileData', (tester) async {
       await setupPage(tester,