1 files changed, 42 insertions, 0 deletions
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