DIsplay missing stock owners banner

app/components/create_log_actions_component.rb

@@ -14,6 +14,7 @@ class CreateLogActionsComponent < ViewComponent::Base
   def display_actions?
     return false if bulk_upload.present?
     return true if user.support?
+    return false if !user.organisation.holds_own_stock? && user.organisation.stock_owners.empty? && user.organisation.absorbed_organisations.empty?
 
     user.organisation.data_protection_confirmed?
   end

app/components/missing_stock_owners_banner_component.html.erb

@@ -0,0 +1,8 @@
+<% if display_banner? %>
+  <%= govuk_notification_banner(title_text: "Important") do %>
+    <p class="govuk-notification-banner__heading govuk-!-width-full" style="max-width: fit-content">
+      <%= header_text %>
+    <p>
+    <%= banner_text %>
+  <% end %>
+<% end %>

app/components/missing_stock_owners_banner_component.rb

@@ -0,0 +1,64 @@
+class MissingStockOwnersBannerComponent < ViewComponent::Base
+  include Rails.application.routes.url_helpers
+
+  attr_reader :user, :organisation
+
+  HELPDESK_URL = "https://dluhcdigital.atlassian.net/servicedesk/customer/portal/6/group/11".freeze
+
+  def initialize(user:)
+    @user = user
+    @organisation = user.organisation
+
+    super
+  end
+
+  def display_banner?
+    return false if user.support?
+    return false if DataProtectionConfirmationBannerComponent.new(user:, organisation:).display_banner?
+
+    !organisation.holds_own_stock? && organisation.stock_owners.empty? && organisation.absorbed_organisations.empty?
+  end
+
+  def header_text
+    if user.data_coordinator?
+      "Your organisation does not own stock. You must #{add_stock_owner_link} before you can create logs.".html_safe
+    else
+      "Your organisation does not own stock. You must add a stock owner before you can create logs.".html_safe
+    end
+  end
+
+  def banner_text
+    if user.data_coordinator?
+      "If your organisation does own stock, #{contact_helpdesk_link} to update your details.".html_safe
+    else
+      "If your organisation does own stock, #{contact_helpdesk_link} to update your details.</br>
+      Ask a data coordinator to add a stock owner. Find your data coordinators on the #{users_link}.".html_safe
+    end
+  end
+
+private
+
+  def add_stock_owner_link
+    govuk_link_to(
+      "add a stock owner",
+      stock_owners_add_organisation_path(id: organisation.id),
+      class: "govuk-notification-banner__link govuk-!-font-weight-bold",
+    )
+  end
+
+  def contact_helpdesk_link
+    govuk_link_to(
+      "contact the helpdesk",
+      HELPDESK_URL,
+      class: "govuk-notification-banner__link govuk-!-font-weight-bold",
+    )
+  end
+
+  def users_link
+    govuk_link_to(
+      "users page",
+      users_path,
+      class: "govuk-notification-banner__link govuk-!-font-weight-bold",
+    )
+  end
+end

app/views/logs/index.html.erb

@@ -8,6 +8,10 @@
   organisation: @organisation,
 ) %>
 
+<%= render MissingStockOwnersBannerComponent.new(
+  user: current_user,
+) %>
+
 <% if @duplicate_sets_count&.positive? %>
   <%= govuk_notification_banner(title_text: "Important", text: govuk_link_to("Review logs", duplicate_logs_path(referrer: "duplicate_logs_banner"))) do |banner| %>
     <% banner.with_heading(text: I18n.t("notification.duplicate_sets", count: @duplicate_sets_count)) %>

spec/requests/lettings_logs_controller_spec.rb

@@ -291,6 +291,41 @@ RSpec.describe LettingsLogsController, type: :request do
             expect(page).to have_content("Managed by")
           end
         end
+
+        context "and organisation does not own stock or have valid stock owners" do
+          before do
+            organisation.update!(holds_own_stock: false)
+          end
+
+          it "hides button to create a new log" do
+            get "/lettings-logs"
+            expect(page).not_to have_content("Create a new lettings log")
+          end
+
+          context "with coordinator user" do
+            let(:user) { FactoryBot.create(:user, :data_coordinator) }
+
+            it "displays a banner exlaining why create new logs button is missing" do
+              get "/lettings-logs", headers:, params: {}
+              expect(page).to have_css(".govuk-notification-banner")
+              expect(page).to have_content("Your organisation does not own stock.")
+              expect(page).to have_link("add a stock owner", href: /stock-owners\/add/)
+              expect(page).not_to have_link("users page", href: /users/)
+            end
+          end
+
+          context "with provider user" do
+            let(:user) { FactoryBot.create(:user, :data_provider) }
+
+            it "displays a banner exlaining why create new logs button is missing" do
+              get "/lettings-logs", headers:, params: {}
+              expect(page).to have_css(".govuk-notification-banner")
+              expect(page).to have_content("Your organisation does not own stock.")
+              expect(page).not_to have_link("add a stock owner", href: /stock-owners\/add/)
+              expect(page).to have_link("users page", href: /users/)
+            end
+          end
+        end
       end
 
       context "when the user is a customer support user" do