4 files changed, 53 insertions, 0 deletions
diff --git a/app/services/issuable_base_service.rb b/app/services/issuable_base_service.rb
index db673cace81..77c2224ee3b 100644
--- a/app/services/issuable_base_service.rb
+++ b/app/services/issuable_base_service.rb
@@ -358,6 +358,7 @@ class IssuableBaseService < BaseService
         assignees: issuable.assignees.to_a
       }
     associations[:total_time_spent] = issuable.total_time_spent if issuable.respond_to?(:total_time_spent)
+    associations[:description] = issuable.description
 
     associations
   end
diff --git a/app/services/issues/update_service.rb b/app/services/issues/update_service.rb
index 7cd825aa967..c8f4412c9f2 100644
--- a/app/services/issues/update_service.rb
+++ b/app/services/issues/update_service.rb
@@ -61,6 +61,8 @@ module Issues
       if added_mentions.present?
         notification_service.async.new_mentions_in_issue(issue, added_mentions, current_user)
       end
+
+      ZoomNotesService.new(issue, project, current_user, old_description: old_associations[:description]).execute
     end
 
     def handle_task_changes(issuable)
diff --git a/app/services/system_note_service.rb b/app/services/system_note_service.rb
index e4564bc9b00..e30debbbe75 100644
--- a/app/services/system_note_service.rb
+++ b/app/services/system_note_service.rb
@@ -597,6 +597,14 @@ module SystemNoteService
     note_text =~ /\A#{cross_reference_note_prefix}/i
   end
 
+  def zoom_link_added(issue, project, author)
+    create_note(NoteSummary.new(issue, project, author, _('a Zoom call was added to this issue'), action: 'pinned_embed'))
+  end
+
+  def zoom_link_removed(issue, project, author)
+    create_note(NoteSummary.new(issue, project, author, _('a Zoom call was removed from this issue'), action: 'pinned_embed'))
+  end
+
   private
 
   # rubocop: disable CodeReuse/ActiveRecord
diff --git a/app/services/zoom_notes_service.rb b/app/services/zoom_notes_service.rb
new file mode 100644
index 00000000000..983a7fcacd1
--- /dev/null
+++ b/app/services/zoom_notes_service.rb
@@ -0,0 +1,42 @@
+# frozen_string_literal: true
+
+class ZoomNotesService
+  def initialize(issue, project, current_user, old_description: nil)
+    @issue = issue
+    @project = project
+    @current_user = current_user
+    @old_description = old_description
+  end
+
+  def execute
+    return if @issue.description == @old_description
+
+    if zoom_link_added?
+      zoom_link_added_notification
+    elsif zoom_link_removed?
+      zoom_link_removed_notification
+    end
+  end
+
+  private
+
+  def zoom_link_added?
+    has_zoom_link?(@issue.description) && !has_zoom_link?(@old_description)
+  end
+
+  def zoom_link_removed?
+    !has_zoom_link?(@issue.description) && has_zoom_link?(@old_description)
+  end
+
+  def has_zoom_link?(text)
+    Gitlab::ZoomLinkExtractor.new(text).match?
+  end
+
+  def zoom_link_added_notification
+    SystemNoteService.zoom_link_added(@issue, @project, @current_user)
+  end
+
+  def zoom_link_removed_notification
+    SystemNoteService.zoom_link_removed(@issue, @project, @current_user)
+  end
+end