Create instance_statistics namespace and move convdev index and cohorts to it

app/controllers/instance_statistics/application_controller.rb

+# frozen_string_literal: true
+
+class InstanceStatistics::ApplicationController < ApplicationController
+  before_action :authenticate_user!
+  layout 'instance_statistics'
+
+  def index
+    redirect_to instance_statistics_conversations_development_index_index_path
+  end
+
+  def authenticate_user!
+    render_404 unless current_user.admin?
+  end
+end

app/controllers/admin/cohorts_controller.rb → app/controllers/instance_statistics/cohorts_controller.rb

-class Admin::CohortsController < Admin::ApplicationController
+class InstanceStatistics::CohortsController < InstanceStatistics::ApplicationController
   def index
     if Gitlab::CurrentSettings.usage_ping_enabled
       cohorts_results = Rails.cache.fetch('cohorts', expires_in: 1.day) do

app/controllers/admin/conversational_development_index_controller.rb → app/controllers/instance_statistics/conversational_development_index_controller.rb

-class Admin::ConversationalDevelopmentIndexController < Admin::ApplicationController
-  def show
+# frozen_string_literal: true
+
+class InstanceStatistics::ConversationalDevelopmentIndexController < InstanceStatistics::ApplicationController
+  def index
     @metric = ConversationalDevelopmentIndex::Metric.order(:created_at).last&.present
   end
 end

app/views/admin/application_settings/_usage.html.haml

@@ -23,7 +23,7 @@
             periodically collect usage information.
             = link_to 'Learn more', help_page_path("user/admin_area/settings/usage_statistics", anchor: "usage-ping")
             about what information is shared with GitLab Inc. Visit
-            = link_to 'Cohorts', admin_cohorts_path(anchor: 'usage-ping')
+            = link_to 'Cohorts', instance_statistics_cohorts_path(anchor: 'usage-ping')
             to see the JSON payload sent.
           - else
             The usage ping is disabled, and cannot be configured through this

app/views/layouts/instance_statistics.html.haml

+- page_title    "Instance Statistics"
+- header_title  "Instance Statistics", instance_statistics_root_path
+- nav "instance_statistics"
+- @left_sidebar = true
+
+= render template: "layouts/application"

app/views/layouts/nav/sidebar/_admin.html.haml

@@ -48,11 +48,11 @@
               %span
                 = _('Gitaly Servers')
           = nav_link path: 'cohorts#index' do
-            = link_to admin_cohorts_path, title: _('Cohorts') do
+            = link_to instance_statistics_cohorts_path, title: _('Cohorts') do
               %span
                 = _('Cohorts')
           = nav_link(controller: :conversational_development_index) do
-            = link_to admin_conversational_development_index_path, title: _('ConvDev Index') do
+            = link_to instance_statistics_conversational_development_index_index_path, title: _('ConvDev Index') do
               %span
                 = _('ConvDev Index')

app/views/layouts/nav/sidebar/_instance_statistics.html.haml

+.nav-sidebar{ class: ("sidebar-collapsed-desktop" if collapsed_sidebar?) }
+  .nav-sidebar-inner-scroll
+    .context-header
+      = link_to instance_statistics_root_path, title: 'Instance Statistics' do
+        .avatar-container.s40.settings-avatar
+          = sprite_icon('chart', size: 24)
+        .sidebar-context-title Instance Statistics
+    %ul.sidebar-top-level-items
+      = nav_link(controller: :conversational_development_index) do
+        = link_to instance_statistics_conversational_development_index_index_path do
+          .nav-icon-container
+            = sprite_icon('comment')
+          %span.nav-item-name
+            = _('ConvDev Index')
+        %ul.sidebar-sub-level-items.is-fly-out-only
+          = nav_link(controller: :conversational_development_index, html_options: { class: "fly-out-top-item" } ) do
+            = link_to instance_statistics_conversational_development_index_index_path do
+              %strong.fly-out-top-item-name
+                = _('ConvDev Index')
+
+      = nav_link(controller: :cohorts) do
+        = link_to instance_statistics_cohorts_path do
+          .nav-icon-container
+            = sprite_icon('users')
+          %span.nav-item-name
+            = _('Cohorts')
+        %ul.sidebar-sub-level-items.is-fly-out-only
+          = nav_link(controller: :cohorts, html_options: { class: "fly-out-top-item" } ) do
+            = link_to instance_statistics_cohorts_path do
+              %strong.fly-out-top-item-name
+                = _('Cohorts')
+
+    = render 'shared/sidebar_toggle_button'

config/routes.rb

@@ -110,6 +110,7 @@ Rails.application.routes.draw do
   draw :group
   draw :user
   draw :project
+  draw :instance_statistics
   root to: "root#index"

config/routes/admin.rb

@@ -76,8 +76,6 @@ namespace :admin do
   resource :system_info, controller: 'system_info', only: [:show]
   resources :requests_profiles, only: [:index, :show], param: :name, constraints: { name: /.+\.html/ }
-  get 'conversational_development_index' => 'conversational_development_index#show'
-
   resources :projects, only: [:index]
   scope(path: 'projects/*namespace_id',
@@ -123,8 +121,6 @@ namespace :admin do
     end
   end
-  resources :cohorts, only: :index
-
   resources :jobs, only: :index do
     collection do
       post :cancel_all

config/routes/instance_statistics.rb

+# frozen_string_literal: true
+
+namespace :instance_statistics do
+  root to: redirect("instance_statistics/conversational_development_index")
+
+  resources :cohorts, only: :index
+  resources :conversational_development_index, only: :index
+end

spec/features/admin/admin_cohorts_spec.rb → spec/features/instance_statistics/cohorts_spec.rb

 require 'rails_helper'
-describe 'Admin cohorts page' do
+describe 'Cohorts page' do
   before do
     sign_in(create(:admin))
   end
@@ -8,7 +8,7 @@ describe 'Admin cohorts page' do
   it 'See users count per month' do
     2.times { create(:user) }
-    visit admin_cohorts_path
+    visit instance_statistics_cohorts_path
     expect(page).to have_content("#{Time.now.strftime('%b %Y')} 3 0")
   end

spec/features/admin/admin_conversational_development_index_spec.rb → spec/features/instance_statistics/conversational_development_index_spec.rb

 require 'spec_helper'
-describe 'Admin Conversational Development Index' do
+describe 'Conversational Development Index' do
   before do
     sign_in(create(:admin))
   end
@@ -9,7 +9,7 @@ describe 'Admin Conversational Development Index' do
     it 'shows empty state' do
       stub_application_setting(usage_ping_enabled: false)
-      visit admin_conversational_development_index_path
+      visit instance_statistics_conversational_development_index_index_path
       expect(page).to have_content('Usage ping is not enabled')
     end
@@ -19,7 +19,7 @@ describe 'Admin Conversational Development Index' do
     it 'shows empty state' do
       stub_application_setting(usage_ping_enabled: true)
-      visit admin_conversational_development_index_path
+      visit instance_statistics_conversational_development_index_index_path
       expect(page).to have_content('Data is still calculating')
     end
@@ -30,7 +30,7 @@ describe 'Admin Conversational Development Index' do
       stub_application_setting(usage_ping_enabled: true)
       create(:conversational_development_index_metric)
-      visit admin_conversational_development_index_path
+      visit instance_statistics_conversational_development_index_index_path
       expect(page).to have_content(
         'Issues created per active user 1.2 You 9.3 Lead 13.3%'