display correct content when there are no unresolved logs

app/views/logs/update_logs.html.erb

@@ -1,8 +1,17 @@
 <% item_label = format_label(@pagy.count, "logs") %>
-<% title = format_title(@searched, "Logs", current_user, item_label, @pagy.count, nil) %>
+<% title = "Update logs"%>
 
 <% content_for :title, title %>
 
+<% if @total_count < 1 %>
+    <%= render partial: "organisations/headings", locals: { main: "There are no more logs that need updating", sub: "" } %>
+    <p class="govuk-body">
+        You’ve completed all the logs that were affected by scheme changes.
+    </p>
+    <div>
+        <%= govuk_button_link_to "Back to all logs", lettings_logs_path %>
+    </div>
+<% else %>
     <%= render partial: "organisations/headings", locals: { main: "You need to update #{@total_count} logs", sub: "" } %>
 
     <%= govuk_table do |table| %>
@@ -32,5 +41,6 @@
         <% end %>
     <% end %>
     <% end %>
+<% end %>
 
 <%== render partial: "pagy/nav", locals: { pagy: @pagy, item_name: "logs" } %>

spec/requests/lettings_logs_controller_spec.rb

@@ -828,6 +828,14 @@ RSpec.describe LettingsLogsController, type: :request do
         expect(page).not_to have_content(affected_lettings_logs.first.id)
         expect(page).to have_content("You need to update 2 logs")
       end
+
+      it "displays correct content when there are no unresolved logs" do
+        LettingsLog.where(unresolved: true).update!(unresolved: false)
+        get "/lettings-logs/update-logs", headers:, params: {}
+        expect(page).to have_content("There are no more logs that need updating")
+        expect(page).to have_content("You’ve completed all the logs that were affected by scheme changes.")
+        page.assert_selector(".govuk-button", text: "Back to all logs")
+      end
     end
 
     context "when viewing a specific log affected by deactivated location" do