Notes: multiple notes per section with last-edited dates, delete, sort by recently edited; Word export now readable; shared note-format module + tests; v2.43.0

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

shared/note-format.js

@@ -0,0 +1,79 @@
+// Lesson note storage format, shared by the client and the server.
+//
+// Each lesson's notes are stored as one string. Current format (v2):
+//   {"v":2,"entries":[{"id","anchor","html","updatedAt"}]}
+// Legacy format (v1) was a JSON object of { anchor: html }, and older still was
+// plain text. Both are still read and are upgraded to v2 on the next save.
+
+export const NOTE_ANCHORS = ['scripture', 'commentary', 'questions', 'general']
+
+export const NOTE_ANCHOR_LABELS = {
+  scripture: 'Scripture Text',
+  commentary: 'Commentary',
+  questions: 'Reflection Questions',
+  general: 'General Notes',
+}
+
+export function newNoteId() {
+  return `n${Date.now().toString(36)}${Math.random().toString(36).slice(2, 7)}`
+}
+
+export function parseNoteEntries(raw) {
+  if (typeof raw !== 'string' || !raw.trim()) return []
+  let parsed = null
+  try {
+    parsed = JSON.parse(raw)
+  } catch {
+    // Legacy plain-text note.
+    return [{ id: newNoteId(), anchor: 'general', html: raw, updatedAt: null }]
+  }
+  if (!parsed || typeof parsed !== 'object' || Array.isArray(parsed)) {
+    return [{ id: newNoteId(), anchor: 'general', html: raw, updatedAt: null }]
+  }
+  if (parsed.v === 2 && Array.isArray(parsed.entries)) {
+    return parsed.entries
+      .filter(e => e && typeof e.html === 'string' && e.html.trim())
+      .map(e => ({
+        id: typeof e.id === 'string' && e.id ? e.id : newNoteId(),
+        anchor: NOTE_ANCHORS.includes(e.anchor) ? e.anchor : 'general',
+        html: e.html,
+        updatedAt: typeof e.updatedAt === 'string' ? e.updatedAt : null,
+      }))
+  }
+  return Object.entries(parsed)
+    .filter(([, html]) => typeof html === 'string' && html.trim())
+    .map(([anchor, html]) => ({
+      id: `legacy-${anchor}`,
+      anchor: NOTE_ANCHORS.includes(anchor) ? anchor : 'general',
+      html,
+      updatedAt: null,
+    }))
+}
+
+export function serializeNoteEntries(entries) {
+  const kept = entries.filter(e => e.html && e.html.trim())
+  if (kept.length === 0) return ''
+  return JSON.stringify({ v: 2, entries: kept })
+}
+
+export function noteHtmlToText(html) {
+  return String(html)
+    .replace(/<\/(p|li|h[1-6]|blockquote)>/gi, '\n')
+    .replace(/<br\s*\/?>/gi, '\n')
+    .replace(/<[^>]*>/g, '')
+    .replace(/&nbsp;/g, ' ')
+    .replace(/&lt;/g, '<')
+    .replace(/&gt;/g, '>')
+    .replace(/&quot;/g, '"')
+    .replace(/&#39;/g, "'")
+    .replace(/&amp;/g, '&')
+    .replace(/\n{3,}/g, '\n\n')
+    .trim()
+}
+
+// Plain-text rendering of a whole lesson's notes (used by the Word export).
+export function noteEntriesToText(raw) {
+  return parseNoteEntries(raw)
+    .map(e => `${NOTE_ANCHOR_LABELS[e.anchor]}\n${noteHtmlToText(e.html)}`)
+    .join('\n\n')
+}