TF-4075 Jump to attachments list position on mobile

(cherry picked from commit cd2ca1ec3c5b5160820823905d9f0183536b07e3)

lib/features/email/presentation/extensions/handle_open_attachment_list_extension.dart

@@ -1,16 +1,50 @@
 import 'package:core/presentation/extensions/scroll_controller_extension.dart';
+import 'package:core/utils/app_logger.dart';
+import 'package:core/utils/platform_info.dart';
 import 'package:flutter/material.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email.dart';
 import 'package:tmail_ui_user/features/email/presentation/controller/single_email_controller.dart';
+import 'package:tmail_ui_user/features/email/presentation/utils/email_utils.dart';
 
 extension HandleOpenAttachmentListExtension on SingleEmailController {
-  void jumpToAttachmentList() {
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      if (attachmentListKey == null) return;
+  void jumpToAttachmentList({
+    required EmailId emailId,
+    required int countAttachments,
+    required double screenHeight,
+    bool isDisplayAllAttachments = false,
+  }) {
+    final scrollController = threadDetailController?.scrollController;
+    if (scrollController == null || !scrollController.hasClients) {
+      logError(
+          '$runtimeType::jumpToAttachmentList(): scrollController is null');
+      return;
+    }
 
-      threadDetailController?.scrollController?.scrollToWidgetTop(
-        key: attachmentListKey!,
-        padding: 70,
-      );
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (PlatformInfo.isWeb && attachmentListKey != null) {
+        scrollController.scrollToWidgetTop(
+          key: attachmentListKey!,
+          padding: 70,
+        );
+      } else {
+        final emailContentHeight =
+            (screenHeight - 180).clamp(0.0, screenHeight).toDouble();
+
+        final totalItems = isDisplayAllAttachments
+            ? countAttachments + 1
+            : EmailUtils.maxMobileVisibleAttachments + 1;
+
+        final totalAttachmentsHeight =
+            totalItems * EmailUtils.attachmentItemHeight +
+                (totalItems - 1) * EmailUtils.attachmentItemSpacing;
+
+        log('$runtimeType::jumpToAttachmentList(): totalAttachmentsHeight: $totalAttachmentsHeight, emailContentHeight: $emailContentHeight');
+        scrollController.scrollToBottomWithPadding(
+          padding: totalAttachmentsHeight < emailContentHeight
+              ? 0
+              : emailContentHeight,
+        );
+      }
     });
   }
 }