Add Tos banner on all admin pages

Plus spec, this is tested on the dashboard page.
The banner will show if the user accepted_at is before the tos file
updated at time.

app/controllers/spree/admin/base_controller.rb

@@ -19,6 +19,7 @@ module Spree
       before_action :authorize_admin
       before_action :set_locale
       before_action :warn_invalid_order_cycles, if: :html_request?
+      before_action :check_updated_tos_accepted, if: :html_request?
 
       # Warn the user when they have an active order cycle with hubs that are not ready
       # for checkout (ie. does not have valid shipping and payment methods).
@@ -110,6 +111,24 @@ module Spree
         name = controller_name.classify
         "::Api::Admin::#{prefix}#{name}Serializer".constantize
       end
+
+      def check_updated_tos_accepted
+        @terms_of_service_banner = false
+
+        return unless spree_user_signed_in?
+
+        return if accepted_tos?
+
+        @terms_of_service_banner = true
+      end
+
+      def accepted_tos?
+        file_uploaded_at = TermsOfServiceFile.updated_at
+
+        current_spree_user.terms_of_service_accepted_at.present? &&
+          current_spree_user.terms_of_service_accepted_at > file_uploaded_at &&
+          current_spree_user.terms_of_service_accepted_at < DateTime.now
+      end
     end
   end
 end

app/views/admin/_terms_of_service_banner.html.haml

@@ -0,0 +1,9 @@
+.banner-container 
+  - if @terms_of_service_banner == true
+    %div{ class: "terms-of-service-banner", data: { controller: "terms-of-service-banner", "terms-of-service-banner-url-value": accept_terms_of_services_admin_user_path(current_spree_user&.id) }}
+      .column-left
+        %p= t("admin.terms_of_service_have_been_updated_html", tos_link: link_to(t("admin.terms_of_service"), TermsOfServiceFile.current_url, target: "_blank"))
+      .column-right
+        %button{ data: { action: "click->terms-of-service-banner#accept click->terms-of-service-banner#close_banner" } }
+          = t("admin.accept_terms_of_service")
+      

app/views/spree/layouts/_admin_body.html.haml

@@ -59,6 +59,8 @@
                 %span= yield :sidebar_title
             = yield :sidebar
 
+  = render partial: "admin/terms_of_service_banner"
+    
 %script
   = raw "Spree.api_key = \"#{spree_current_user.try(:spree_api_key).to_s}\";"
 

app/webpacker/css/admin/all.scss

@@ -112,6 +112,7 @@
 @import "side_menu";
 @import "tables";
 @import "tag_rules";
+@import "terms_of_service_banner";
 @import "terms_of_service_files";
 @import "validation";
 @import "variant_overrides";

app/webpacker/css/admin/terms_of_service_banner.scss

@@ -0,0 +1,27 @@
+.banner-container {
+  position: fixed;
+  bottom: 0;
+  left: 0;
+  width: 100%;
+  z-index: 1000;
+
+  .terms-of-service-banner {
+    padding: 18px;
+    text-align: center;
+    font-size: 120%;
+    color: white;
+    font-weight: 600;
+    margin-top: 0;
+    background-color: rgba($color-notice, 0.8);
+    display: flex;
+
+    .column-left {
+      width: 70%;
+    }
+
+    .column-right {
+      width: 30%;
+      text-align: center;
+    }
+  }
+}

config/locales/en.yml

@@ -653,6 +653,9 @@ en:
 
     available_units: "Available Units"
 
+    terms_of_service_have_been_updated_html: "Terms of Service have been updated: %{tos_link}"
+    terms_of_service: Terms of Service
+    accept_terms_of_service: Accept terms of service
     shopfront_settings:
       embedded_shopfront_settings: "Embedded Shopfront Settings"
       enable_embedded_shopfronts: "Enable Embedded Shopfronts"

spec/requests/spree/admin/overview_spec.rb

@@ -0,0 +1,59 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+
+describe "/admin", type: :request do
+  let(:enterprise) { create(:supplier_enterprise, name: "Feedme") }
+  let(:enterprise_user) { create(:user, enterprise_limit: 1) }
+
+  before do
+    enterprise_user.enterprise_roles.build(enterprise:).save
+    sign_in enterprise_user
+  end
+
+  describe "GET /admin" do
+    before do
+      allow(TermsOfServiceFile).to receive(:updated_at).and_return(2.hours.ago)
+    end
+
+    it "loads the dashboard page" do
+      get "/admin"
+
+      expect(response).to render_template("spree/admin/overview/single_enterprise_dashboard")
+    end
+
+    # The banner will show on all admin page, we are just testing it here
+    describe "terms of service updated banner" do
+      context "when terms of service has been updated" do
+        it "shows accept new ToS banner" do
+          enterprise_user.update(terms_of_service_accepted_at: nil)
+
+          get "/admin"
+
+          expect(response.body).to include("Terms of Service have been updated")
+        end
+
+        context "when user has accepted new terms of service" do
+          it "doesn't show accept new ToS banner" do
+            enterprise_user.update(terms_of_service_accepted_at: 1.hour.ago)
+
+            get "/admin"
+
+            expect(response.body).to_not include("Terms of Service have been updated")
+          end
+        end
+
+        # Shouldn't be possible
+        context "when user has accepted new terms of service in the future" do
+          it "shows accept new ToS banner" do
+            enterprise_user.update(terms_of_service_accepted_at: 1.hour.from_now)
+
+            get "/admin"
+
+            expect(response.body).to include("Terms of Service have been updated")
+          end
+        end
+      end
+    end
+  end
+end