Add group activity analytics skeleton

- Render app with empty container

app/views/groups/show.html.haml

@@ -11,6 +11,8 @@
 
   = render_if_exists 'groups/self_or_ancestor_marked_for_deletion_notice', group: @group
 
+  = render_if_exists 'groups/group_activity_analytics', group: @group
+
   .groups-listing{ data: { endpoints: { default: group_children_path(@group, format: :json), shared: group_shared_projects_path(@group, format: :json) } } }
     .top-area.group-nav-container.justify-content-between
       .scrolling-tabs-container.inner-page-scroll-tabs

ee/app/assets/javascripts/analytics/group_analytics/components/group_activity_card.vue

+<script>
+export default {
+  name: 'GroupActivityCard',
+  props: {
+    groupFullPath: {
+      type: String,
+      required: true,
+    },
+  },
+};
+</script>
+
+<template>
+  <div></div>
+</template>

ee/app/assets/javascripts/analytics/group_analytics/group_analytics_bundle.js

+import Vue from 'vue';
+import GroupActivityCard from './components/group_activity_card.vue';
+
+export default () => {
+  const container = document.getElementById('js-group-activity');
+
+  if (!container) return;
+
+  const { groupFullPath } = container.dataset;
+
+  // eslint-disable-next-line no-new
+  new Vue({
+    el: container,
+    render(h) {
+      return h(GroupActivityCard, {
+        props: {
+          groupFullPath,
+        },
+      });
+    },
+  });
+};

ee/app/assets/javascripts/pages/groups/show/index.js

 import initSecurityDashboard from 'ee/security_dashboard/index';
 import leaveByUrl from '~/namespaces/leave_by_url';
 import initGroupDetails from '~/pages/groups/shared/group_details';
+import initGroupAnalytics from 'ee/analytics/group_analytics/group_analytics_bundle';
 
 document.addEventListener('DOMContentLoaded', () => {
   leaveByUrl('group');
@@ -10,4 +11,6 @@ document.addEventListener('DOMContentLoaded', () => {
   } else {
     initGroupDetails();
   }
+
+  initGroupAnalytics();
 });

ee/app/views/groups/_group_activity_analytics.html.haml

+- return unless show_group_activity_analytics?
+#js-group-activity{ data: { group_full_path: @group.full_path } }

ee/spec/features/analytics/group_analytics_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'GroupAnalytics' do
+  let_it_be(:user) { create(:user) }
+  let_it_be(:group) { create(:group) }
+  let(:path) { group_path(group) }
+
+  before do
+    stub_licensed_features(group_activity_analytics: true)
+
+    sign_in(user)
+  end
+
+  context 'when the feature is enabled' do
+    it 'renders the container' do
+      visit path
+
+      expect(page).to have_css('#js-group-activity')
+    end
+  end
+
+  context 'when the feature is disabled' do
+    before do
+      stub_feature_flags(group_activity_analytics: false)
+    end
+
+    it 'does not render the container' do
+      visit path
+
+      expect(page).not_to have_css('#js-group-activity')
+    end
+  end
+end