Ensure Jira users and labels have `id` attribute

A recent change to Apollo means we require IDs for 
every GraphQL object.

Jira labels and users did not include IDs.

This MR ensures Jira labels and users have `id` 
field defined.

https://gitlab.com/gitlab-org/gitlab/-/issues/347162

Changelog: fixed
EE: true

ee/app/serializers/integrations/jira_serializers/issue_entity.rb

@@ -32,6 +32,7 @@ module Integrations
       expose :labels do |jira_issue|
         jira_issue.labels.map do |name|
           {
+            id: name,
             title: name,
             name: name,
             color: '#0052CC',
@@ -76,12 +77,20 @@ module Integrations
 
       def jira_user(user)
         {
+          id: jira_user_id(user),
           name: user['displayName'],
           web_url: jira_web_url(user),
           avatar_url: user['avatarUrls']['48x48']
         }
       end
 
+      def jira_user_id(user)
+        # There are differences between Jira Cloud and Jira Server URLs and responses.
+        # accountId is only available on Jira Cloud.
+        # https://community.atlassian.com/t5/Jira-Questions/How-to-find-account-id-on-jira-on-premise/qaq-p/1168652
+        user['accountId'].presence || user['name']
+      end
+
       def jira_web_url(user)
         # There are differences between Jira Cloud and Jira Server URLs and responses.
         # accountId is only available on Jira Cloud.

ee/spec/serializers/integrations/jira_serializers/issue_detail_entity_spec.rb

@@ -86,6 +86,7 @@ RSpec.describe Integrations::JiraSerializers::IssueDetailEntity do
       state: 'closed',
       labels: [
         {
+          id: 'backend',
           title: 'backend',
           name: 'backend',
           color: '#0052CC',
@@ -93,6 +94,7 @@ RSpec.describe Integrations::JiraSerializers::IssueDetailEntity do
         }
       ],
       author: hash_including(
+        id: 'reporter@reporter.com',
         name: 'reporter',
         avatar_url: 'http://reporter.avatar'
       ),
@@ -109,6 +111,7 @@ RSpec.describe Integrations::JiraSerializers::IssueDetailEntity do
         hash_including(
           id: '10022',
           author: hash_including(
+            id: 'comment@author.com',
             name: 'comment_author',
             avatar_url: 'http://comment_author.avatar'
           ),

ee/spec/serializers/integrations/jira_serializers/issue_entity_spec.rb

@@ -53,6 +53,7 @@ RSpec.describe Integrations::JiraSerializers::IssueEntity do
       status: 'To Do',
       labels: [
         {
+          id: 'backend',
           title: 'backend',
           name: 'backend',
           color: '#0052CC',
@@ -60,11 +61,13 @@ RSpec.describe Integrations::JiraSerializers::IssueEntity do
         }
       ],
       author: hash_including(
+        id: 'reporter@reporter.com',
         name: 'reporter',
         avatar_url: 'http://reporter.avatar'
       ),
       assignees: [
         hash_including(
+          id: 'assignee@assignee.com',
           name: 'assignee',
           avatar_url: 'http://assignee.avatar'
         )
@@ -91,6 +94,11 @@ RSpec.describe Integrations::JiraSerializers::IssueEntity do
       expect(subject[:assignees].first).to include(web_url: "http://jira.com/secure/ViewProfile.jspa?#{referrer}&name=assignee%40assignee.com")
     end
 
+    it 'sets user id field to `name`' do
+      expect(subject[:author][:id]).to eq(reporter['name'])
+      expect(subject[:assignees].first[:id]).to eq(assignee['name'])
+    end
+
     context 'with only url' do
       before do
         stub_jira_integration_test
@@ -123,6 +131,11 @@ RSpec.describe Integrations::JiraSerializers::IssueEntity do
       expect(subject[:author]).to include(web_url: "http://jira.com/people/12345?#{referrer}")
       expect(subject[:assignees].first).to include(web_url: "http://jira.com/people/67890?#{referrer}")
     end
+
+    it 'sets user id field to `accountId`' do
+      expect(subject[:author][:id]).to eq(reporter['accountId'])
+      expect(subject[:assignees].first[:id]).to eq(assignee['accountId'])
+    end
   end
 
   context 'without assignee' do