Adding new entity for billable members

When viewing billable members, their email should be
visibile if they have selected a public email in their
profile

ee/app/assets/javascripts/billings/seat_usage/components/subscription_seats.vue

@@ -67,7 +67,7 @@ export default {
   },
   avatarSize: AVATAR_SIZE,
   emailNotVisibleTooltipText: s__(
-    'Billing|An email address is only visible for users managed through Group Managed Accounts.',
+    'Billing|An email address is only visible for users with public emails.',
   ),
 };
 </script>

ee/changelogs/unreleased/vij-billable-members-entity.yml

+---
+title: Display public emails for billable members
+merge_request: 50290
+author:
+type: changed

ee/lib/ee/api/entities/billable_member.rb

+# frozen_string_literal: true
+
+module EE
+  module API
+    module Entities
+      class BillableMember < ::API::Entities::UserBasic
+        expose :public_email, as: :email
+      end
+    end
+  end
+end

ee/lib/ee/api/members.rb

@@ -63,7 +63,7 @@ module EE
                                     order_by: sorting).execute
             )
 
-            present users, with: ::API::Entities::UserBasic, current_user: current_user
+            present users, with: ::EE::API::Entities::BillableMember, current_user: current_user
           end
         end
       end

ee/spec/frontend/billings/seat_usage/components/__snapshots__/subscription_seats_spec.js.snap

@@ -34,7 +34,7 @@ Array [
   },
   Object {
     "email": "Private",
-    "tooltip": "An email address is only visible for users managed through Group Managed Accounts.",
+    "tooltip": "An email address is only visible for users with public emails.",
     "user": Object {
       "avatarLabeled": Object {
         "size": "32",

ee/spec/lib/ee/api/entities/billable_member_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe ::EE::API::Entities::BillableMember do
+  let(:member) { build(:user, public_email: public_email, email: 'private@email.com') }
+
+  subject(:entity_representation) { described_class.new(member).as_json }
+
+  context 'when the user has a public_email assigned' do
+    let(:public_email) { 'public@email.com' }
+
+    it 'exposes public_email instead of email' do
+      aggregate_failures do
+        expect(entity_representation.keys).to include(:email)
+        expect(entity_representation[:email]).to eq public_email
+        expect(entity_representation[:email]).not_to eq member.email
+      end
+    end
+  end
+
+  context 'when the user has no public_email assigned' do
+    let(:public_email) { nil }
+
+    it 'returns a nil value for email' do
+      aggregate_failures do
+        expect(entity_representation.keys).to include(:email)
+        expect(entity_representation[:email]).to be nil
+      end
+    end
+  end
+end

ee/spec/requests/api/members_spec.rb

@@ -484,14 +484,20 @@ RSpec.describe API::Members do
         group.add_owner(owner)
       end
 
-      include_context "group managed account with group members"
+      include_context 'group managed account with group members'
 
-      it_behaves_like 'members response with exposed emails' do
-        let(:emails) { gma_member.email }
+      context 'when members have a public_email' do
+        before do
+          allow_next_found_instance_of(User) do |instance|
+            allow(instance).to receive(:public_email).and_return('public@email.com')
+          end
         end
 
-      it_behaves_like 'members response with hidden emails' do
-        let(:emails) { member.email }
+        it { is_expected.to include(a_hash_including('email' => 'public@email.com')) }
+      end
+
+      context 'when members have no public_email' do
+        it { is_expected.to include(a_hash_including('email' => '')) }
       end
     end
   end

locale/gitlab.pot

@@ -4478,7 +4478,7 @@ msgstr ""
 msgid "BillingPlan|Upgrade"
 msgstr ""
 
-msgid "Billing|An email address is only visible for users managed through Group Managed Accounts."
+msgid "Billing|An email address is only visible for users with public emails."
 msgstr ""
 
 msgid "Billing|An error occurred while loading billable members list"