The book detail page had no way to mark a book finished or reset its
read state from the UI. Reading state is modelled by reading_progress
alone, where 'read' is the canonical signal percentage >= 1.0 (used by
the dashboard Recently Read collection, analytics, and sync priority).
Add a single toggle button in the action row (after Read Now) whose
label is server-rendered from completion state:
- not read -> "Mark as Read" -> PUT /api/media-items/:id/progress
{ percentage: 1.0 }
- read -> "Mark as Unread" -> DELETE /api/media-items/:id/progress
Mark as Unread cannot use PUT { percentage: 0 }: the progress handler
silently ignores percentage < 0.005 when existing progress > 0.01
(internal/handlers/media.go anti-regression guard), so DELETE is the
only reliable reset.
If the book has an active sync mismatch (an unresolved sync_conflicts
row), the toggle resolves it first via POST /api/conflicts/:id/resolve
before writing progress. Order matters: resolving sets resolved_at,
arming the 10-minute HasRecentConflictResolution suppression window so
the subsequent progress write does not spawn a brand-new conflict. The
resolve winner is any valid source key from the conflict data (prefers
"web"); it does not affect the final state, which the progress write
sets. A 400 "already resolved" response is tolerated.
Notes, highlights, and ratings are independent of reading_progress (they
reference media_items, not progress) and are never affected by the
toggle. After toggling the page reloads so the progress card, Sync
Progress button, and conflict banner re-render server-side.
- templates/utils.go: add conflictWinnerSource and conflictID helpers.
- templates/book_detail.templ: data-conflict-id/winner on <body> and the
toggle button.
- web/src/book-detail.ts: toggleRead() + conflictId/conflictWinner/
readSaving state (read from <body> in init()).
- templates/book_detail_templ.go regenerated.
john-okeefe
bf83492bf7