Add spelling test polish: date filter, CSV export, student history, planner badges

- Gradebook: period dropdown (all time / 30 / 90 days) and CSV export for
  Spelling Test History section
- Student portal spelling tab: shows last 10 tests as a Recent Tests list
- Planner: completed standalone spelling tests appear as read-only ⭐ badges
  on the day they were taken (week and month views)
- Removed dead s.tests query from /api/overview (now served by dedicated endpoints)
- New endpoints: GET /api/spelling-tests/csv, GET /api/students/:id/tests,
  GET /api/admin/students/:id/tests-range

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

public/admin.html

@@ -284,6 +284,14 @@
         </div>
         <div id="gradebook-table"></div>
         <h2>Spelling Test History</h2>
+        <div class="inline-form">
+          <label>Period <select id="spelling-tests-since">
+            <option value="">All time</option>
+            <option value="30">Last 30 days</option>
+            <option value="90">Last 90 days</option>
+          </select></label>
+          <button id="spelling-tests-csv-btn" class="secondary small">⬇ CSV</button>
+        </div>
         <div id="spelling-tests-table"></div>
         <div id="history-modal" class="modal" hidden>
           <div class="modal-box">

public/admin.js

@@ -844,15 +844,21 @@ function attachPlannerEvents() {
   );
 }
 
-function renderDayCell(day, tasks, compact = false) {
+function renderDayCell(day, tasks, compact = false, spellingTests = []) {
   const dayTasks = tasks.filter((t) => t.date === day.date);
+  const dayTests = spellingTests.filter((t) => t.date === day.date);
+  const testBadges = dayTests.map((t) => {
+    const pct = Math.round((t.score / t.total) * 100);
+    return `<div class="planner-task planner-test-badge" title="${esc(t.list)}">⭐ Spelling ${t.score}/${t.total} (${pct}%)</div>`;
+  }).join('');
   return `<div class="planner-day${compact ? ' planner-day-compact' : ''}" data-drop-date="${day.date}">
     <h3>${compact ? day.name.slice(0,3) : day.name}<small>${compact ? day.date.slice(5) : day.date}</small></h3>
     <div class="planner-tasks" data-drop-date="${day.date}">
+      ${testBadges}
       ${dayTasks.map((t) => `<div class="planner-task ${t.done ? 'done' : ''}" draggable="true" data-task-id="${t.id}">
         <span>${t.itemId ? TYPE_ICON[t.type] : '📌'} ${esc(t.itemTitle || t.offlineTitle)}</span>
         <button class="danger tiny" data-del-schedule="${t.id}">✕</button>
-      </div>`).join('') || `<p class="hint tiny">—</p>`}
+      </div>`).join('') || (!testBadges ? `<p class="hint tiny">—</p>` : '')}
     </div>
     <button class="secondary small" data-add-task="${day.date}">+ Add</button>
     <div class="add-task-form" data-form-for="${day.date}" hidden></div>
@@ -878,22 +884,28 @@ async function renderPlanner() {
     }
     const rangeStart = weeks[0][0].date;
     const rangeEnd = weeks[weeks.length - 1][4].date;
-    const { tasks } = await api(`/api/schedule-range/${plannerStudentId}?start=${rangeStart}&end=${rangeEnd}`);
+    const [{ tasks }, { tests: spellingTests }] = await Promise.all([
+      api(`/api/schedule-range/${plannerStudentId}?start=${rangeStart}&end=${rangeEnd}`),
+      api(`/api/admin/students/${plannerStudentId}/tests-range?from=${rangeStart}&to=${rangeEnd}`),
+    ]);
 
     $('#planner-week-label').textContent = monthLabel(plannerMonthRef);
     $('#planner-grid').className = 'planner-grid planner-month';
     $('#planner-grid').innerHTML =
       `<div class="planner-month-header">${DAY_NAMES.map((d) => `<div>${d.slice(0,3)}</div>`).join('')}</div>` +
       weeks.map((week) =>
-        `<div class="planner-month-row">${week.map((day) => renderDayCell(day, tasks, true)).join('')}</div>`
+        `<div class="planner-month-row">${week.map((day) => renderDayCell(day, tasks, true, spellingTests)).join('')}</div>`
       ).join('');
   } else {
     const end = addDays(plannerWeekStart, 4);
     $('#planner-week-label').textContent = `${plannerWeekStart} → ${end}`;
-    const { tasks } = await api(`/api/schedule-week/${plannerStudentId}?start=${plannerWeekStart}`);
+    const [{ tasks }, { tests: spellingTests }] = await Promise.all([
+      api(`/api/schedule-week/${plannerStudentId}?start=${plannerWeekStart}`),
+      api(`/api/admin/students/${plannerStudentId}/tests-range?from=${plannerWeekStart}&to=${end}`),
+    ]);
     const days = DAY_NAMES.map((name, i) => ({ name, date: addDays(plannerWeekStart, i) }));
     $('#planner-grid').className = 'planner-grid';
-    $('#planner-grid').innerHTML = days.map((day) => renderDayCell(day, tasks)).join('');
+    $('#planner-grid').innerHTML = days.map((day) => renderDayCell(day, tasks, false, spellingTests)).join('');
   }
 
   attachPlannerEvents();
@@ -1215,7 +1227,8 @@ async function loadGradebookPanel() {
 }
 
 async function loadSpellingTests() {
-  const { students } = await api('/api/spelling-tests');
+  const since = $('#spelling-tests-since').value;
+  const { students } = await api(since ? `/api/spelling-tests?since=${since}` : '/api/spelling-tests');
   const container = $('#spelling-tests-table');
   const active = students.filter((s) => s.tests.length > 0);
   if (!active.length) {
@@ -1248,6 +1261,11 @@ $('#gradebook-csv-btn').addEventListener('click', () => {
   if (!gradebookCourseId) return;
   window.location.href = `/api/gradebook/${gradebookCourseId}/csv`;
 });
+$('#spelling-tests-since').addEventListener('change', loadSpellingTests);
+$('#spelling-tests-csv-btn').addEventListener('click', () => {
+  const since = $('#spelling-tests-since').value;
+  window.location.href = `/api/spelling-tests/csv${since ? '?since=' + since : ''}`;
+});
 $('#history-modal-close').addEventListener('click', () => { $('#history-modal').hidden = true; });
 
 async function showHistory(studentId, itemId, label) {

public/app.js

@@ -238,10 +238,11 @@ function switchTab(name) {
 }
 
 async function openKid(id, tab = 'today') {
-  const [state, agenda, courses] = await Promise.all([
+  const [state, agenda, courses, { tests: recentTests }] = await Promise.all([
     api(`/api/state/${id}`),
     api(`/api/schedule/${id}?date=${todayStr()}`),
     api(`/api/courses/mine/${id}`),
+    api(`/api/students/${id}/tests`),
   ]);
   currentStudent = state.student;
   applyTheme(currentStudent.theme || 'blue');
@@ -261,7 +262,7 @@ async function openKid(id, tab = 'today') {
 
   renderToday(agenda.tasks);
   renderCourseCards(courses);
-  renderSpellingTab(state);
+  renderSpellingTab(state, recentTests);
 
   show('kid');
   switchTab(tab);
@@ -433,7 +434,7 @@ function renderCourseCards(courses) {
 let currentSpellingListId = null;
 let currentSpellingListName = '';
 
-function renderSpellingTab(state) {
+function renderSpellingTab(state, tests = []) {
   let html;
   if (state.assignment) {
     const { mastered, total } = state.listProgress;
@@ -452,6 +453,21 @@ function renderSpellingTab(state) {
   $('#kid-week').innerHTML = html;
   $('#btn-test').disabled = !state.assignment;
   $('#btn-print-list').disabled = !state.assignment;
+
+  const histEl = $('#kid-test-history');
+  if (!tests.length) {
+    histEl.innerHTML = '';
+  } else {
+    const rows = tests.map((t) => {
+      const pct = Math.round((t.score / t.total) * 100);
+      return `<div class="test-history-row">
+        <span class="thr-date">${new Date(t.at + 'Z').toLocaleDateString()}</span>
+        <span class="thr-list">${esc(t.list)}</span>
+        <span class="thr-score ${pct >= 80 ? 'score-good' : 'score-bad'}">${t.score}/${t.total} (${pct}%)</span>
+      </div>`;
+    }).join('');
+    histEl.innerHTML = `<h3 class="thr-heading">Recent Tests</h3>${rows}`;
+  }
 }
 
 $('#btn-print-list').addEventListener('click', async () => {

public/index.html

@@ -55,6 +55,7 @@
         <button id="btn-test" class="big-btn test">⭐ Friday Test</button>
         <button id="btn-print-list" class="big-btn print-list">🖨 Print my words</button>
       </div>
+      <div id="kid-test-history"></div>
     </div>
   </section>
 

public/styles.css

@@ -487,6 +487,7 @@ button.tiny { font-size: 0.75rem; padding: 0.15rem 0.5rem; }
 .planner-task[draggable] { cursor: grab; }
 .planner-task[draggable]:active { cursor: grabbing; }
 .planner-task.dragging { opacity: 0.35; }
+.planner-test-badge { background: color-mix(in srgb, var(--accent) 18%, var(--card)); border-left: 3px solid var(--accent); font-size: 0.78rem; cursor: default; pointer-events: none; }
 .planner-tasks.drop-target {
   background: color-mix(in srgb, var(--accent) 12%, transparent);
   border-radius: 8px;
@@ -724,3 +725,10 @@ body.theme-pink   { --accent: #d45d8a; --accent-dark: #b4487a; --bg: #fff0f5; }
 .theme-swatch.theme-purple { background: #7c5cbf; }
 .theme-swatch.theme-orange { background: #e8802a; }
 .theme-swatch.theme-pink   { background: #d45d8a; }
+
+/* ---------- student portal: test history ---------- */
+.thr-heading { margin: 1.5rem 0 0.5rem; font-size: 1rem; }
+.test-history-row { display: flex; gap: 0.75rem; align-items: baseline; padding: 0.35rem 0; border-bottom: 1px solid var(--muted); font-size: 0.9rem; flex-wrap: wrap; }
+.thr-date { color: var(--muted); min-width: 6rem; flex-shrink: 0; }
+.thr-list { flex: 1; min-width: 8rem; }
+.thr-score { margin-left: auto; font-weight: 600; white-space: nowrap; }

server.js

@@ -445,11 +445,6 @@ app.get('/api/overview', requirePin, (req, res) => {
         WHERE w.list_id = ?
       `).get(s.id, s.assignment.id);
     }
-    s.tests = db.prepare(`
-      SELECT t.id, t.score, t.total, t.at, l.name AS list
-      FROM tests t JOIN lists l ON l.id = t.list_id
-      WHERE t.student_id = ? ORDER BY t.at DESC LIMIT 20
-    `).all(s.id);
   }
   res.json({ students });
 });
@@ -970,17 +965,61 @@ app.get('/api/gradebook/:courseId/csv', requirePin, (req, res) => {
 
 // All standalone spelling test results grouped by student
 app.get('/api/spelling-tests', requirePin, (req, res) => {
+  const days = parseInt(req.query.since) || null;
+  const cutoff = days ? new Date(Date.now() - days * 86400000).toISOString().slice(0, 10) : null;
   const students = db.prepare(`SELECT id, name, emoji FROM students ORDER BY name`).all();
   for (const s of students) {
-    s.tests = db.prepare(`
-      SELECT t.id, t.score, t.total, t.at, l.name AS list
-      FROM tests t JOIN lists l ON l.id = t.list_id
-      WHERE t.student_id = ? ORDER BY t.at DESC LIMIT 20
-    `).all(s.id);
+    s.tests = cutoff
+      ? db.prepare(`SELECT t.id, t.score, t.total, t.at, l.name AS list FROM tests t JOIN lists l ON l.id = t.list_id WHERE t.student_id = ? AND date(t.at) >= ? ORDER BY t.at DESC LIMIT 20`).all(s.id, cutoff)
+      : db.prepare(`SELECT t.id, t.score, t.total, t.at, l.name AS list FROM tests t JOIN lists l ON l.id = t.list_id WHERE t.student_id = ? ORDER BY t.at DESC LIMIT 20`).all(s.id);
   }
   res.json({ students });
 });
 
+app.get('/api/spelling-tests/csv', requirePin, (req, res) => {
+  const days = parseInt(req.query.since) || null;
+  const cutoff = days ? new Date(Date.now() - days * 86400000).toISOString().slice(0, 10) : null;
+  const rows = db.prepare(`
+    SELECT s.emoji, s.name AS student, l.name AS list, t.score, t.total, t.at
+    FROM tests t JOIN students s ON s.id = t.student_id JOIN lists l ON l.id = t.list_id
+    ${cutoff ? 'WHERE date(t.at) >= ?' : ''} ORDER BY t.at DESC
+  `).all(...(cutoff ? [cutoff] : []));
+  const q = (v) => `"${String(v ?? '').replace(/"/g, '""')}"`;
+  const header = 'Date,Student,List,Score,Total,%';
+  const data = rows.map((r) => [
+    q(new Date(r.at + 'Z').toLocaleDateString()),
+    q(`${r.emoji} ${r.student}`),
+    q(r.list), r.score, r.total,
+    Math.round((r.score / r.total) * 100) + '%',
+  ].join(',')).join('\n');
+  res.setHeader('Content-Type', 'text/csv');
+  res.setHeader('Content-Disposition', 'attachment; filename="spelling-test-history.csv"');
+  res.send(header + '\n' + data);
+});
+
+// Student-facing: recent tests for the spelling tab (no PIN — student portal)
+app.get('/api/students/:id/tests', (req, res) => {
+  const tests = db.prepare(`
+    SELECT t.id, t.score, t.total, t.at, l.name AS list
+    FROM tests t JOIN lists l ON l.id = t.list_id
+    WHERE t.student_id = ? ORDER BY t.at DESC LIMIT 10
+  `).all(req.params.id);
+  res.json({ tests });
+});
+
+// Admin: tests within a date range for a single student (used by planner)
+app.get('/api/admin/students/:id/tests-range', requirePin, (req, res) => {
+  const { from, to } = req.query;
+  if (!from || !to) return res.status(400).json({ error: 'from and to required' });
+  const tests = db.prepare(`
+    SELECT t.id, t.score, t.total, t.at, date(t.at) AS date, l.name AS list
+    FROM tests t JOIN lists l ON l.id = t.list_id
+    WHERE t.student_id = ? AND date(t.at) BETWEEN ? AND ?
+    ORDER BY t.at
+  `).all(req.params.id, from, to);
+  res.json({ tests });
+});
+
 // Full evidence for a submission (photo can be large, not included in queue list)
 app.get('/api/grading-queue/:id/evidence', requirePin, (req, res) => {
   const row = db.prepare(`SELECT evidence_notes, evidence_photo FROM submissions WHERE id = ?`).get(req.params.id);