feat(destinations): the post-16 section, replacing the placeholder

The 'Post-16 destination data coming soon' note is deleted rather than
reworded: for a school with no sixth form the truthful statement is that
the question does not apply, and a placeholder there implies something is
missing. hasSixthForm and .sixthFormNote go with it — nothing else used them.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BvdDKvFFSZuMVDH5fEyTob

nextjs-app/__tests__/components/Post16DestinationsSection.test.tsx

@@ -0,0 +1,45 @@
+import { render, screen } from '@testing-library/react';
+import { Post16DestinationsSection } from '@/components/school/Post16DestinationsSection';
+import type { DestinationPhase } from '@/lib/types';
+
+const phase: DestinationPhase = {
+  cohort_year: '2022/23',
+  groups: {
+    all: {
+      cohort: 96,
+      categories: [
+        { category: 'higher_education', pupils: 56, percentage: 58.3, status: 'published' },
+        { category: 'further_education', pupils: 12, percentage: 12.5, status: 'published' },
+        { category: 'apprenticeship', pupils: 9, percentage: 9.4, status: 'published' },
+        { category: 'employment', pupils: 13, percentage: 13.5, status: 'published' },
+        { category: 'not_sustained', pupils: 6, percentage: 6.3, status: 'published' },
+      ],
+      aggregates: {},
+    },
+  },
+};
+
+describe('Post16DestinationsSection', () => {
+  it('names the Year 13 cohort, not Year 11', () => {
+    const { container } = render(<Post16DestinationsSection destinations={phase} />);
+    expect(container.textContent).toMatch(/Year 13/);
+    expect(container.textContent).not.toMatch(/Year 11/);
+  });
+
+  it('reports higher education destinations', () => {
+    render(<Post16DestinationsSection destinations={phase} />);
+    expect(screen.getByText(/UK higher education/i)).toBeInTheDocument();
+  });
+
+  it('uses its own anchor so the nav does not collide with After Year 11', () => {
+    const { container } = render(<Post16DestinationsSection destinations={phase} />);
+    expect(container.querySelector('#post16-destinations')).toBeTruthy();
+    expect(container.querySelector('#destinations')).toBeNull();
+  });
+
+  it('renders nothing when no group carries categories', () => {
+    const empty: DestinationPhase = { cohort_year: '2022/23', groups: {} };
+    const { container } = render(<Post16DestinationsSection destinations={empty} />);
+    expect(container.firstChild).toBeNull();
+  });
+});

nextjs-app/components/school/Post16DestinationsSection.tsx

@@ -0,0 +1,40 @@
+/**
+ * Post16DestinationsSection — where a school's Year 13 leavers went.
+ * Server component.
+ *
+ * A separate publication, a separate cohort and a separate question from
+ * After Year 11, so it is a separate section rather than a tab: a parent
+ * choosing a secondary and a student choosing a sixth form are not the same
+ * reader.
+ *
+ * Not rendered at all for a school without post-16 provision. A "no data"
+ * placeholder there would imply something is missing, when the truthful
+ * statement is that the question does not apply — which is why the old
+ * "Post-16 destination data coming soon" note is gone rather than reworded.
+ */
+
+import type { DestinationPhase } from '@/lib/types';
+import { Section, sectionStyles } from './sectionShared';
+import { DestinationsView } from './DestinationsView';
+
+export function Post16DestinationsSection({
+  destinations,
+}: { destinations: DestinationPhase }) {
+  const hasContent = Object.values(destinations.groups)
+    .some(group => (group?.categories?.length ?? 0) > 0);
+  if (!hasContent) return null;
+
+  const cohort = destinations.groups.all?.cohort ?? null;
+  const year = destinations.cohort_year;
+
+  return (
+    <Section id="post16-destinations">
+      <h2 className={sectionStyles.sectionTitle}>After the sixth form</h2>
+      <p className={sectionStyles.sectionSubtitle}>
+        Where {cohort ? `the ${cohort} students` : 'the students'} who finished
+        Year 13{year ? ` in ${year}` : ''} went next.
+      </p>
+      <DestinationsView destinations={destinations} phase="ks5" />
+    </Section>
+  );
+}

nextjs-app/components/school/SecondaryAdmissionsSection.tsx

@@ -15,7 +15,7 @@ import {
 } from './lastDistanceOffered';
 
 export function SecondaryAdmissionsSection({
-  admissions, admissionsHistory, admissionDistance, schoolInfo, hasSixthForm,
+  admissions, admissionsHistory, admissionDistance, schoolInfo,
 }: {
   /* Nullable for the same reason as the primary section: a school can have a
      published cut-off and no EES admissions row. */
@@ -23,7 +23,6 @@ export function SecondaryAdmissionsSection({
   admissionsHistory: SchoolAdmissions[];
   admissionDistance: SchoolAdmissionDistance | null;
   schoolInfo: School;
-  hasSixthForm: boolean;
 }) {
   const cutoff = describeCutoff(admissionDistance);
   // Moved with this section from SecondarySchoolDetailView, its only consumer.
@@ -112,11 +111,6 @@ export function SecondaryAdmissionsSection({
         </p>
       )}
 
-      {hasSixthForm && (
-        <div className={styles.sixthFormNote}>
-          This school has a sixth form (Post-16 provision). Post-16 destination data coming soon.
-        </div>
-      )}
     </section>
   );
 }

nextjs-app/components/school/SecondarySchoolSections.tsx

@@ -21,6 +21,7 @@ import type { SecondaryFlags } from '@/lib/schoolSections';
 import { OfstedSection } from './OfstedSection';
 import { GcseSection } from './GcseSection';
 import { DestinationsSection } from './DestinationsSection';
+import { Post16DestinationsSection } from './Post16DestinationsSection';
 import { SecondaryAdmissionsSection } from './SecondaryAdmissionsSection';
 import { DistanceSection } from './DistanceSection';
 import { SecondaryHistorySection } from './SecondaryHistorySection';
@@ -94,6 +95,12 @@ export function SecondarySchoolSections({
         <DestinationsSection destinations={destinations.ks4} />
       )}
 
+      {/* Sixth-form schools only. Absent, not placeheld, for a school with no
+          post-16 provision — the question simply does not apply there. */}
+      {flags.hasKs5Destinations && destinations?.ks5 && (
+        <Post16DestinationsSection destinations={destinations.ks5} />
+      )}
+
       {/* See PrimarySchoolSections: distance and EES admissions are independent
           sources, so either one warrants the section. */}
       {(admissions || admissionDistance) && (
@@ -102,7 +109,6 @@ export function SecondarySchoolSections({
           admissionDistance={admissionDistance}
           admissionsHistory={admissionsHistory}
           schoolInfo={schoolInfo}
-          hasSixthForm={flags.hasSixthForm}
         />
       )}
 

nextjs-app/components/school/schoolSections.module.css

@@ -1883,15 +1883,7 @@
     color: var(--phase-secondary-text);
     border: 1px solid rgba(var(--status-above-rgb), 0.2);
 }
-.sixthFormNote {
+
-    margin-top: 1rem;
-    padding: 0.625rem 0.875rem;
-    background: var(--bg-secondary);
-    border-radius: 6px;
-    font-size: 0.825rem;
-    color: var(--text-secondary);
-    border-left: 3px solid var(--brand);
-}
 .genderSplitHint {
     font-size: 0.7rem;
     color: var(--text-muted);
@@ -2107,7 +2099,6 @@
     border-top: 1px solid var(--border);
 }
 
-
 .cutoffMapFigure {
     /* Enough to read a set of concentric rings and no more — this is a
        diagram of a number, not a map anyone navigates by. */