Add routes section to edit question

app/views/pages/_form.html.erb

@@ -52,6 +52,22 @@
   <h2 class="govuk-heading-m"><%= t("pages.answer_settings") %></h2>
   <%= render PageSettingsSummaryComponent::View.new(draft_question:, errors: question_input.errors) %>
 
+  <% unless is_new_page %>
+    <% routes_body_key =
+         if page_object.routing_conditions.any?
+           "has_routes_html"
+         elsif draft_question.answer_type == "selection" && draft_question.answer_settings[:only_one_option] == "true" && draft_question.answer_settings[:selection_options].length <= 10
+           "body_html"
+         elsif page_object.has_next_page?
+           "skip_body_html"
+         end %>
+    <% if routes_body_key %>
+      <h2 class="govuk-heading-m"><%= t("pages.routes_section.heading") %></h2>
+      <p class="govuk-body"><%= t("pages.routes_section.#{routes_body_key}", routes_path: routes_path(form_id: form_object.id, anchor: page_object.page_position_id)) %></p>
+      <hr class="govuk-section-break govuk-section-break--m govuk-section-break--visible" />
+    <% end %>
+  <% end %>
+
   <ul class="govuk-list govuk-list--spaced">
     <li>
       <%= f.govuk_submit t('pages.submit_save'), class: "govuk-!-margin-bottom-3", name: "submit_type", value: "save" %>

config/locales/en.yml

@@ -2038,6 +2038,11 @@ en:
           skip_later: If you need to, you can make them skip one or more questions that only people on route 1 need to answer.
           will_continue_to: People who select any other answer will continue to question %{next_question_number} and through the rest of the form.
           will_continue_to_end_of_form: People who select any other answer will continue to the end of the form.
+    routes_section:
+      body_html: If you need people to skip some questions or exit the form based on their answer to this question, <a class="govuk-link" href="%{routes_path}">edit question routes</a>.
+      has_routes_html: 'This question has routes: <a class="govuk-link" href="%{routes_path}">Edit question routes</a>'
+      heading: Routes
+      skip_body_html: If you need people to skip some questions after this one, <a class="govuk-link" href="%{routes_path}">edit question routes</a>.
     submit_save: Save question
   payment_link_input:
     body_html: |

spec/views/pages/edit.html.erb_spec.rb

@@ -67,4 +67,122 @@
       expect(rendered).not_to have_text(I18n.t("helpers.hint.pages_question_input.is_optional_options.true"))
     end
   end
+
+  describe "routes section" do
+    let(:form) { create :form, pages: [page, create(:page)] }
+    let(:question_input) do
+      build :question_input,
+            answer_type: draft_question.answer_type,
+            answer_settings: draft_question.answer_settings,
+            question_text: draft_question.question_text,
+            draft_question:
+    end
+
+    context "when the question has no routes" do
+      context "when the question is a selection question with one option only" do
+        let(:draft_question) { build :selection_draft_question, only_one_option: "true" }
+
+        it "contains the routes heading" do
+          expect(rendered).to have_css("h2", text: I18n.t("pages.routes_section.heading"))
+        end
+
+        it "contains a link to the question's routes" do
+          expect(rendered).to have_link("edit question routes", href: routes_path(form_id: form.id, anchor: page.page_position_id))
+        end
+      end
+
+      context "when the question is a selection question with one option only and more than 10 options" do
+        let(:draft_question) { build :selection_draft_question, only_one_option: "true", selection_options: (1..11).map { |i| { name: "Option #{i}", value: "option #{i}" } } }
+
+        it "contains the text about skipping questions" do
+          expect(rendered).to have_text("If you need people to skip some questions after this one, edit question routes.")
+        end
+
+        context "when the question is the last question in the form" do
+          let(:form) { create :form, pages: [page] }
+
+          it "does not contain the routes section" do
+            expect(rendered).not_to have_css("h2", text: I18n.t("pages.routes_section.heading"))
+          end
+        end
+      end
+
+      context "when the question is a selection question with multiple options" do
+        let(:draft_question) { build :selection_draft_question, only_one_option: "false" }
+
+        it "contains the routes heading" do
+          expect(rendered).to have_css("h2", text: I18n.t("pages.routes_section.heading"))
+        end
+
+        it "contains the text about skipping questions" do
+          expect(rendered).to have_text("If you need people to skip some questions after this one, edit question routes.")
+        end
+
+        it "contains a link to the question's routes" do
+          expect(rendered).to have_link("edit question routes", href: routes_path(form_id: form.id, anchor: page.page_position_id))
+        end
+      end
+
+      context "when the question is not a selection question" do
+        let(:draft_question) { build :draft_question, answer_type: "email" }
+
+        it "contains the routes heading" do
+          expect(rendered).to have_css("h2", text: I18n.t("pages.routes_section.heading"))
+        end
+
+        it "contains the text about skipping questions" do
+          expect(rendered).to have_text("If you need people to skip some questions after this one, edit question routes.")
+        end
+
+        it "contains a link to the question's routes" do
+          expect(rendered).to have_link("edit question routes", href: routes_path(form_id: form.id, anchor: page.page_position_id))
+        end
+      end
+
+      context "when the question is not a selection question and is the last question in the form" do
+        let(:form) { create :form, pages: [page] }
+        let(:draft_question) { build :draft_question, answer_type: "email" }
+
+        it "does not contain the routes section" do
+          expect(rendered).not_to have_css("h2", text: I18n.t("pages.routes_section.heading"))
+        end
+      end
+    end
+
+    context "when the question has routes" do
+      let(:other_page) { create :page }
+      let(:form) do
+        create(:form, pages: [page, other_page]).tap do
+          create :condition, routing_page: page, check_page: page, answer_value: "Option 1", goto_page: other_page
+          page.reload
+        end
+      end
+      let(:draft_question) { build :selection_draft_question, only_one_option: "true" }
+
+      it "contains the routes heading" do
+        expect(rendered).to have_css("h2", text: I18n.t("pages.routes_section.heading"))
+      end
+
+      it "contains the text saying the question has routes" do
+        expect(rendered).to have_text("This question has routes: Edit question routes")
+      end
+
+      it "contains a link to the question's routes" do
+        expect(rendered).to have_link("Edit question routes", href: routes_path(form_id: form.id, anchor: page.page_position_id))
+      end
+
+      context "when the question is the last question in the form" do
+        let(:form) do
+          create(:form, pages: [page]).tap do
+            create :condition, routing_page: page, check_page: page, answer_value: "Option 1", skip_to_end: true
+            page.reload
+          end
+        end
+
+        it "contains the text saying the question has routes" do
+          expect(rendered).to have_text("This question has routes: Edit question routes")
+        end
+      end
+    end
+  end
 end