1 files changed, 54 insertions, 0 deletions
diff --git a/lib/gitlab/github_import/importer/events/changed_reviewer.rb b/lib/gitlab/github_import/importer/events/changed_reviewer.rb
new file mode 100644
index 00000000000..17b1fa4ab45
--- /dev/null
+++ b/lib/gitlab/github_import/importer/events/changed_reviewer.rb
@@ -0,0 +1,54 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module GithubImport
+    module Importer
+      module Events
+        class ChangedReviewer < BaseImporter
+          def execute(issue_event)
+            requested_reviewer_id = author_id(issue_event, author_key: :requested_reviewer)
+            review_requester_id = author_id(issue_event, author_key: :review_requester)
+
+            note_body = parse_body(issue_event, requested_reviewer_id)
+
+            create_note(issue_event, note_body, review_requester_id)
+          end
+
+          private
+
+          def create_note(issue_event, note_body, review_requester_id)
+            Note.create!(
+              system: true,
+              noteable_type: issuable_type(issue_event),
+              noteable_id: issuable_db_id(issue_event),
+              project: project,
+              author_id: review_requester_id,
+              note: note_body,
+              system_note_metadata: SystemNoteMetadata.new(
+                {
+                  action: 'reviewer',
+                  created_at: issue_event.created_at,
+                  updated_at: issue_event.created_at
+                }
+              ),
+              created_at: issue_event.created_at,
+              updated_at: issue_event.created_at
+            )
+          end
+
+          def parse_body(issue_event, requested_reviewer_id)
+            requested_reviewer = User.find(requested_reviewer_id).to_reference
+
+            if issue_event.event == 'review_request_removed'
+              "#{SystemNotes::IssuablesService.issuable_events[:review_request_removed]}" \
+              " #{requested_reviewer}"
+            else
+              "#{SystemNotes::IssuablesService.issuable_events[:review_requested]}" \
+              " #{requested_reviewer}"
+            end
+          end
+        end
+      end
+    end
+  end
+end