Since PR #36b6d8e moved tier-installation tracking from a client-side
persistence model to a server-side derive-from-disk model, the card
display only ever updates once every file in a tier is fully on disk.
A user who picks Standard sees a blank card for the duration of the
download (often hours for large tiers like Wikibooks). Worse, if some
files finish before others, the card briefly shows a lower tier (e.g.
Essential) before promoting to the selected tier on completion, which
reads as "the system didn't accept my pick."
Backend: compute a sibling `downloadingTierSlug` by unioning installed
resource IDs with the IDs from active RunDownloadJob queue entries
(waiting + active + delayed, failed deliberately excluded), then
resolving the highest tier whose every resource is in that union. Set
only when it differs from `installedTierSlug` — no point reporting
"downloading Standard" when Standard is already fully installed.
Frontend: unify the prominent corner badge logic in CategoryCard to a
single `badgeTier` derived from selectedTier > downloadingTier >
installedTier. Spinner + "(downloading)" suffix when in flight,
checkmark for installed/selected. The pill row and lime border follow
the same source.
Verified on NOMAD3: backend correctly resolves the downloading tier
from in-flight BullMQ jobs; CategoryCard shows the spinner badge
immediately on Submit and switches to the checkmark variant when
downloads complete.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Content Updates had three UX problems that compounded:
1. No size column, so users had to guess how big an update would be before
clicking Update All. Upstream /api/v1/resources/check-updates doesn't
return size, so CollectionUpdateService now enriches each update with
a Content-Length HEAD request in parallel (5s timeout, non-fatal on
failure — the row just renders an em-dash).
2. Small ZIM updates (1-8 MB) never appeared in Active Downloads. Two
causes, both fixed: handleApply / handleApplyAll didn't invalidate the
download-jobs query after dispatching, and useDownloads idled at 30s
between polls — enough for a fast job to dispatch, download, and get
cleaned up by removeOnComplete before the next refetch.
3. applyUpdate didn't forward title / totalBytes to RunDownloadJob, so
any update that did briefly surface in Active Downloads had no label
and no byte-count progress, just a filename and a percentage. It now
passes both (matching zim_service's dispatch pattern).
Also parallelized applyAllUpdates so dispatching five updates doesn't
serialize five sequential BullMQ round-trips.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Chris Sherwood
Jake Turner