The Dashboard's "Retry All Failed" button used to fetch every non-superseded
failure, then fire one retry HTTP call per row. Two missing guards:
- No per-source dedup — a source with N historical failures enqueued N jobs
for the same URL.
- No "recent success" check — a source that succeeded two hours ago could
still have stale un-superseded failures from last week that got re-queued.
Adds POST /api/downloads/retry-failed-bulk:
• Selects non-superseded failures, ordered (source_id ASC, created_at DESC)
• Per-source dedup keeps only the most recent failure per source
• Skips sources whose last_success is within the configurable recent window
(default 24h, via recent_window_hours body param)
• Resets + enqueues in a single DB transaction, single Celery dispatch loop
• Returns a per-reason skip breakdown: duplicate_source, recent_success,
no_source (orphaned rows)
The Dashboard button now calls the bulk endpoint and surfaces the full
skip breakdown in the toast, so the user knows exactly what was (and
wasn't) queued. Logic is extracted into a pure _plan_bulk_retry helper
and unit-tested against SimpleNamespace fixtures — 7 new tests covering
the dedup, window, and orphan paths.
bvandeusen
f747750f97