Files
study-bible-project/server/projectSync.js
T
nmemmertandClaude Sonnet 5.5 d13f55faf7 Add Outline stage, parallel reading, offline saves, backup, sync-conflict handling and more
Study
- New Outline stage (hierarchical I./A./1. points, linked to chunks, in all exports);
  the chunk stage is now "Chunks"
- Home cards: passages shown as ranges, tags capped with "+N more"

Reader
- Side-by-side translations and a Compare tab per verse
- Typeface, line spacing, verse-number settings; text and column scale with the screen
- Highlights/bookmarks sheet with named colours (synced); BSB footnote spacing fix
- Cmd-K palette (passages, studies, notes, marks), keyboard shortcuts and "?" help

Flow and safety
- Toasts with Undo replace most confirm()/alert()
- Back/Forward move between pages
- Server refuses saves over a newer copy (409); keep-mine / use-other banner;
  opening a study no longer re-stamps it
- Latest chapter request wins when flipping quickly

Offline and data
- Save books, plan days or a whole BSB/NET for offline
- Service worker fixes: helloao /api/ URLs were skipped and responses cloned too late
- Settings: download/restore a full backup

Accessibility
- Sheets trap focus and close on Escape, skip link, focus ring, reduced motion,
  theme contrast raised to 4.5:1 (with a test)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-01 14:08:08 -04:00

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975 B
JavaScript

// Stops one device from silently overwriting a study another device has saved since. The browser sends
// the `lastEdited` of the server copy it last saw (X-Base-Edited); if the server's copy has moved past
// that, the save is refused with 409 and the person chooses whose version to keep.
// stored: the server copy's lastEdited (null when there is none); base: what the client last saw
// (null/undefined when it never synced this study); force: the person chose "keep mine".
export function isSaveConflict({ stored, base, force = false }) {
if (force || stored == null) return false;
if (!Number.isFinite(base)) return false; // a device that never saw the server's copy has nothing to compare
return stored > base;
}
// Reads the base header; anything that isn't a plain number is treated as "unknown".
export function parseBase(header) {
if (header == null || header === '') return null;
const n = Number(header);
return Number.isFinite(n) ? n : null;
}