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fix(plex): make watch import concurrency-safe (upsert), guard toggle

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The Plex watch import inserted plex_states via per-row ORM add against a pre-read 'existing' set,
which is not safe when the enable call fires more than once while the multi-second import runs (the
toggle wasn't disabled during it): overlapping imports raced to INSERT the same (user_id, item_id)
rows and all but the first hit a UniqueViolation -> 500 (seen on prod). Rewrite the write path as a
chunked PostgreSQL UPSERT (on_conflict_do_update, rows de-duped by item_id) — idempotent and
concurrency-safe, Plex still wins on the intersection and Siftlode-only states are untouched.

Also disable the Settings toggle (and ignore its onChange) while a sync mutation is pending, so it
can't be fired repeatedly; adds a reusable 'disabled' prop to the Switch primitive.
This commit is contained in:
npeter83 2026-07-09 15:18:19 +02:00
parent b09963be2b
commit 5592f60e85
3 changed files with 43 additions and 18 deletions
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5
frontend/src/components/ui/form.tsx
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@ -10,10 +10,12 @@ export function Switch({
checked,
onChange,
label,
disabled,
}: {
checked: boolean;
onChange: (v: boolean) => void;
label?: string;
disabled?: boolean;
}) {
return (
<button
@ -21,8 +23,9 @@ export function Switch({
role="switch"
aria-checked={checked}
aria-label={label}
disabled={disabled}
onClick={() => onChange(!checked)}
className={`w-9 h-5 rounded-full transition relative shrink-0 ${checked ? "bg-accent" : "bg-border"}`}
className={`w-9 h-5 rounded-full transition relative shrink-0 disabled:opacity-50 disabled:cursor-not-allowed ${checked ? "bg-accent" : "bg-border"}`}
>
<span
className={`absolute top-0.5 w-4 h-4 rounded-full bg-white shadow transition-all ${