Add license breakdown to admin pages

Closes #653

app/controllers/admin/dashboard_controller.rb

@@ -3,5 +3,6 @@ class Admin::DashboardController < Admin::ApplicationController
     @projects = Project.limit(10)
     @users = User.limit(10)
     @groups = Group.limit(10)
+    @license = License.current
   end
 end

app/views/admin/dashboard/index.html.haml

@@ -2,6 +2,9 @@
 = render "admin/dashboard/head"
 
 %div{ class: container_class }
+  - if @license
+    = render "admin/licenses/breakdown", license: @license
+
   .admin-dashboard.prepend-top-default
     .row
       .col-md-4

app/views/admin/licenses/_breakdown.html.haml

+- if license.restricted?(:active_user_count)
+  - restricted = license.restrictions[:active_user_count]
+  - licensed_users = number_with_delimiter(restricted)
+- else
+  - licensed_users = 'Unlimited'
+
+- date_range = (Date.today - 1.year)..Date.today
+- historical = HistoricalData.during(date_range).maximum(:active_user_count) || 0
+- if historical && restricted && historical > restricted
+  - users_over_license = historical - restricted
+- else
+  - users_over_license = 0
+
+.license-panel.prepend-top-default
+  .row
+    .col-sm-4
+      .light-well
+        %h4 Users in License
+        .data
+          %h1.center= licensed_users
+        %hr
+        - if @license.will_expire?
+          Your license is valid from
+          %strong
+            #{@license.starts_at} to
+          %strong<>
+            #{@license.expires_at}
+          \.
+        The
+        %a{href: 'https://about.gitlab.com/license-faq/'}true-up model
+        allows having more users, and additional users will incur a retroactive charge on renewal.
+    .col-sm-4
+      .light-well
+        %h4 Maximum Users
+        .data
+          %h1.center= number_with_delimiter historical
+        %hr
+          This is the highest peak of users on your installation since the license started, and this is the minimum
+          number you need to purchase when you renew your license.
+    .col-sm-4
+      .light-well
+        %h4 Users over License
+        .data
+          %h1.center= number_with_delimiter users_over_license
+        %hr
+          The
+          %a{href: 'https://about.gitlab.com/license-faq/'}true-up model
+          has a retroactive charge for these users at the next renewal. If you want to update your
+          license sooner to prevent this, please contact
+          #{mail_to 'sales@gitlab.com'}.

app/views/admin/licenses/show.html.haml

@@ -42,42 +42,6 @@
             %span.label.label-danger.pull-right
               %strong Expired
 
-    .panel.panel-default
-      .panel-heading
-        Users
-      %ul.well-list
-        %li
-          %span.light License limit:
-          %strong
-            - if @license.restricted?(:active_user_count)
-              - restricted = @license.restrictions[:active_user_count]
-              #{number_with_delimiter restricted} #{"users".pluralize(restricted)}
-            - else
-              Unlimited
-        %li
-          %span.light Current active users:
-          %strong
-            - current = User.active.count
-            #{number_with_delimiter current} #{"users".pluralize(current)}
-
-          - if restricted && current > restricted
-            %span.label.label-danger.pull-right
-              %strong
-                Exceeds license limit
-
-        - date_range = (Date.today - 1.year)..Date.today
-        - historical = HistoricalData.during(date_range).maximum(:active_user_count)
-        - if historical
-          %li
-            %span.light Maximum active users:
-            %strong
-              #{number_with_delimiter historical} #{"users".pluralize(historical)}
-
-            - if restricted && historical > restricted
-              %span.label.label-danger.pull-right
-                %strong
-                  Exceeds license limit
-
   .col-md-6
     .panel.panel-info
       .panel-heading
@@ -98,6 +62,8 @@
         %br
         = link_to 'Remove license', admin_license_path, data: { confirm: "Are you sure you want to remove the license?" }, method: :delete, class: "btn btn-remove"
 
+= render "breakdown", license: @license
+
 - if @previous_licenses.any?
   %h4 License History
 

spec/features/admin/admin_license_spec.rb

+require 'spec_helper'
+
+feature "License Admin", feature: true do
+  before do
+    login_as :admin
+  end
+
+  describe '#show' do
+    it 'shows a valid license' do
+      visit admin_license_path
+
+      expect(page).to have_content('Your license is valid')
+      page.within '.license-panel' do
+        expect(page).to have_content('Unlimited')
+      end
+    end
+
+    describe 'limited users' do
+      it 'shows panel counts' do
+        restrictions = { active_user_count: 2000 }
+        allow_any_instance_of(Gitlab::License).to receive(:restrictions).and_return(restrictions)
+        visit admin_license_path
+
+        page.within '.license-panel' do
+          expect(page).to have_content('2,000')
+        end
+      end
+    end
+  end
+end