[mforce]

Closes #629. Closes #630.

Two independent async-intent defects, both found by the #511 review round (PR #628) and both pre-existing there. One lives in usePagedList and affects all ten adopting screens; the other is InventoryPage's own.

#629 — a write during an in-flight load-more dropped the page the user asked for

runWrite claims its ticket before the write starts, so a load-more still in flight is superseded and its response discarded. That part is right. But the click behind it was never withdrawn, and refreshWindow re-walked only to cursorRef — the cursor as it stood before that click. The page the user asked for was silently swallowed, and the record the write had just created could land in the gap beyond the rebuilt window.

The hook now tracks the furthest offset the user has asked for beside the one the server has settled, and the post-write walk goes to whichever is further. The ask counts only while it is still reachable: a landed load, an extension the server refused, and a refresh walk that emptied the window all retire it — so one failed page cannot become a request re-issued on every later write.

Not addressed here: part 2 of the issue (the one-render window before reloading flips). It is an opt-in per-screen presentation choice, bounded to a single paint, and identical for every existing adopter.

#630 — a write's refresh re-opened the item panel

refreshAll ended by re-activating the item the write was about, from an id captured when the handler ran. The panel's own Close link carries no disabled={busy}, so it stays reachable behind the dialog for the whole flight (#480's virtual-cursor door): closing the panel mid-write put the user straight back onto the item they had just left when the write settled.

It now reads which item is open at the moment the re-read lands, and the captured openItemId is gone from refreshAll and run entirely — with the ref there is nothing left for it to say. That removes the staleness rather than testing for it, and covers the two write paths (create, edit) that never passed an id at all. A null stays authoritative: an open item the refresh no longer lists still closes the panel.

A correction to the issue's repro. #630 describes opening item B while the POST is in flight. That is not producible — every row's Open button is disabled={busy} for the whole write. The reachable door is the panel's Close link, and that is what the test drives.

Verification

• npx vitest run — 96 files, 2211 tests, green. npm run typecheck clean.
• 8 new tests, none of which existed in any form: the whole suite previously interleaved a write only with a replacement in flight, never with an extension, and had no test that changed the open item mid-write.
• Mutation check, snapshot-restored, baseline and restore both green:
  • usePagedList: a write issued during an in-flight load-more can shrink the loaded window #629 — five mutants (target ignores the ask; loadMore records no ask; each of the three retirements), all five die, each on its own named assertion.
  • InventoryPage: a write's refresh re-activates its own item, yanking a user who has navigated elsewhere #630 — four mutants; three die on their named assertion. The fourth, if (openNow !== null) → if (true), survives by construction: with nothing open the find misses and setActive(null) is a no-op. The guard is kept for readability and is not claimed as behaviour.

Related

#509 is separately verified as closed by #642 (#512) for the reachability it was filed about; a comment there records the residue.

Summary by CodeRabbit

• Bug Fixes
  • Improved inventory panel behavior during purchases and adjustments, preventing closed panels from reopening unexpectedly.
  • Inventory panels now close when the selected item is no longer available after a refresh.
  • Open panels continue displaying refreshed lot information when the selected item remains available.
  • Preserved “load more” progress when list updates overlap with in-progress requests.
  • Improved recovery after failed refreshes and prevented obsolete requests from affecting current list results.

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📒 Files selected for processing (2)

• web/src/components/usePagedList.test.tsx
• web/src/components/usePagedList.ts

🚧 Files skipped from review as they are similar to previous changes (2)

• web/src/components/usePagedList.test.tsx
• web/src/components/usePagedList.ts

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📝 Walkthrough

Walkthrough

The changes preserve requested pagination during write refreshes and prevent delayed inventory writes from restoring stale item panels. Regression tests cover filter replacement, failed paging requests, panel navigation, lot refreshes, and removed items.

Changes

Paged list refresh handling

Layer / File(s)	Summary
Requested cursor refresh flow web/src/components/usePagedList.ts, web/src/components/usePagedList.test.tsx	usePagedList tracks the furthest requested cursor separately from the loaded cursor. Refreshes use the valid requested depth, and replacement failures reset both cursor states. Tests cover writes during replacement and failed obsolete requests.

Inventory panel refresh handling

Layer / File(s)	Summary
Active panel refresh flow web/src/routes/InventoryPage.tsx, web/src/routes/InventoryPage.test.tsx	InventoryPage reads the current active item when a mutation refresh completes. Purchase and stock adjustment callers use the updated refresh flow. Tests cover closed panels, open-panel lot refreshes, and removed active items.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: ⚪ Minimal · up to 92d92

The changes keep paged results aligned with the newest user request and prevent a closed item panel from reopening after a write; no actionable merge-blocking risk remains beyond normal checks and review.

Sequence Diagram(s)

sequenceDiagram
  participant User
  participant usePagedList
  participant InventoryAPI
  User->>usePagedList: Start filter replacement
  usePagedList->>usePagedList: Reset requested and loaded cursors
  User->>usePagedList: Issue write
  usePagedList->>usePagedList: Refresh through current requested depth
  usePagedList->>InventoryAPI: Load new-filter pages
  InventoryAPI-->>usePagedList: Return current rows
  usePagedList-->>User: Preserve refreshed window

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sequenceDiagram
  participant User
  participant InventoryPage
  participant InventoryAPI
  User->>InventoryPage: Start purchase or adjustment
  User->>InventoryPage: Close or change active panel
  InventoryPage->>InventoryAPI: Submit mutation
  InventoryAPI-->>InventoryPage: Complete mutation
  InventoryPage->>InventoryPage: Read current active item from activeIdRef
  InventoryPage->>InventoryAPI: Refresh inventory and lots
  InventoryAPI-->>InventoryPage: Return current inventory state
  InventoryPage-->>User: Preserve current panel or close removed item

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Estimated code review effort: 3 (Moderate) | ~20 minutes

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 33.33% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 6 functions across 4 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly describes the two related fixes: preserving the newest paged-list intent and item-panel state.
Description check	✅ Passed	The description explains the problems, implementation, linked issues, verification commands, test coverage, and known limitations. It omits the template checklist, but the core required information is…
Linked Issues check	✅ Passed	The changes satisfy #629 by tracking requested pagination depth, preserving reachable pages, retiring stale cursors, and adding regression tests. They satisfy #630 by preserving current panel state, p…
Out of Scope Changes check	✅ Passed	The production changes and regression tests are directly related to the pagination and InventoryPage async-intent defects described in the linked issues. No unrelated code changes are evident.

Full details: Description check

Explanation

The description explains the problems, implementation, linked issues, verification commands, test coverage, and known limitations. It omits the template checklist, but the core required information is complete.

Full details: Linked Issues check

Explanation

The changes satisfy #629 by tracking requested pagination depth, preserving reachable pages, retiring stale cursors, and adding regression tests. They satisfy #630 by preserving current panel state, preventing stale reactivation, and closing the panel when the item is absent. [#629] [#630]

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[mforce]

@coderabbitai full review

Context for the round: both changes are async-intent fixes, so the interesting surface is interleaving, not syntax.

• usePagedList now tracks the offset the user asked for beside the one the server settled, and the post-write walk targets the further of the two. Worth adversarial attention: whether any path can leave requestedCursorRef above a cursor that is no longer reachable, and whether the three retirement points (landed load, refused extension, emptied refresh walk) cover every way an ask can die.
• InventoryPage.refreshAll no longer takes the caller's captured item id and reads the open item from a ref when the re-read lands. Worth attention: whether any write path now refreshes a panel it should not, or skips one it should.

Verification already run and reported in the PR body: full SPA suite 2211/2211, typecheck clean, and a snapshot-restored mutation check on every load-bearing line (9 mutants; 8 die on their own named assertion, the 9th is disclosed as equivalent-by-construction).

[coderabbitai]

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
set -euo pipefail

echo "== Changed files and diff =="
git diff --find-renames origin/main...HEAD -- \
  web/src/components/usePagedList.ts \
  web/src/components/usePagedList.test.tsx \
  web/src/routes/InventoryPage.tsx \
  web/src/routes/InventoryPage.test.tsx

echo "== usePagedList outline =="
ast-grep outline web/src/components/usePagedList.ts --items all --view expanded

echo "== InventoryPage outline =="
ast-grep outline web/src/routes/InventoryPage.tsx --items all --view expanded

echo "== usePagedList references =="
rg -n -C 3 --glob '*.{ts,tsx}' '\busePagedList\s*\(' web

echo "== Inventory refresh and mutation call sites =="
rg -n -C 5 --glob '*.{ts,tsx}' '\b(refreshAll|mutateAndRefresh|openItem|setOpenItem)\s*\(' web/src/routes/InventoryPage.tsx

Length of output: 23944

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#!/bin/bash
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echo "== Complete usePagedList implementation =="
nl -ba web/src/components/usePagedList.ts | sed -n '1,330p'

echo "== Complete InventoryPage implementation: state, loading, refresh, and mutation helper =="
nl -ba web/src/routes/InventoryPage.tsx | sed -n '46,310p'

echo "== Complete InventoryPage implementation: all handlers and panel controls =="
nl -ba web/src/routes/InventoryPage.tsx | sed -n '310,760p'

echo "== Every InventoryPage run invocation =="
rg -n -C 8 --glob '*.tsx' '\brun\s*\(' web/src/routes/InventoryPage.tsx

echo "== Every InventoryPage active-panel state transition =="
rg -n -C 5 --glob '*.tsx' '\b(setActive|activeIdRef\.current|setItems)\s*\(' web/src/routes/InventoryPage.tsx

echo "== Paged-list write integration and refresh callers =="
rg -n -C 6 --glob '*.{ts,tsx}' '\.(runWrite|refreshWindow|loadMore)\s*\(' web

Length of output: 1267

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numbered() {
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}

echo "== Complete usePagedList implementation =="
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echo "== InventoryPage: state, loading, refresh, and mutation helper =="
numbered web/src/routes/InventoryPage.tsx | sed -n '46,310p'

echo "== InventoryPage: handlers and panel controls =="
numbered web/src/routes/InventoryPage.tsx | sed -n '310,760p'

echo "== Every InventoryPage run invocation =="
rg -n -C 8 --glob '*.tsx' '\brun\s*\(' web/src/routes/InventoryPage.tsx

echo "== Every active-panel state transition =="
rg -n -C 5 --glob '*.tsx' '\b(setActive|activeIdRef\.current|setItems)\s*\(' web/src/routes/InventoryPage.tsx

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awk 'NR >= 318 && NR <= 430 { printf "%6d  %s\n", NR, $0 }' web/src/components/usePagedList.ts

echo "== usePagedList test structure =="
ast-grep outline web/src/components/usePagedList.test.tsx --items all --view expanded

echo "== Tests for replacement/write/paging interleavings =="
rg -n -i -C 12 --glob '*.tsx' \
  '(filter|reload|runWrite|write|load-more|loadMore|supersed|extension|requested|refresh)' \
  web/src/components/usePagedList.test.tsx

echo "== InventoryPage test helpers and all refresh/write interleaving tests =="
rg -n -i -C 12 --glob '*.tsx' \
  '(function (renderReady|openItem)|const (renderReady|openItem)|deferred|in.flight|in-flight|close.*write|write.*close|refresh)' \
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@mforce: I found one async-intent issue.

P1 — Retire the previous window when a filter replacement starts

usePagedList.reload starts the replacement request but leaves cursorRef.current and requestedCursorRef.current at the previous filter’s depth. If a write starts before that request settles, runWrite supersedes the replacement and refreshWindow uses the old depth as its target.

Example sequence:

1. The user loads two pages for filter A.
2. The user changes to filter B.
3. Filter B page 1 is still in flight.
4. A write starts and completes.
5. refreshWindow fetches filter B at offsets 0 and pageSize.

The second request belongs to filter A’s retired window, not to filter B. If that extra request fails, refreshWindow clears the valid filter B page-1 result. Retire the cursor and requested cursor when the filter replacement begins, or track the replacement window separately. Add a test with a multi-page filter A window and a write that supersedes an unresolved filter B replacement.

The InventoryPage.refreshAll change correctly preserves the panel state at refresh completion. I found no additional panel-refresh issue.

✅ Action performed

Full review finished.

[coderabbitai]

Actionable comments posted: 1

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Inline comments:
In `@web/src/components/usePagedList.ts`:
- Line 215: Reset or isolate the previous filter’s cursor state when a filter
replacement begins, before runWrite calculates target using cursorRef and
requestedCursorRef. Ensure the replacement starts from page 1 and cannot request
fetchB(3) while fetchB(0) is pending; add a regression test covering this
superseding-write scenario.

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📒 Files selected for processing (4)

• web/src/components/usePagedList.test.tsx
• web/src/components/usePagedList.ts
• web/src/routes/InventoryPage.test.tsx
• web/src/routes/InventoryPage.tsx

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[mforce]

P1 — Retire the previous window when a filter replacement starts

Confirmed and fixed in 92d92fb7. The mechanism is exactly as described, and the sequence reproduces.

One correction to the attribution: this predates the PR rather than arriving with it. reload never retired cursorRef, so a write superseding an unsettled replacement already walked the new filter to the old filter's depth before any of this branch's changes. Measured rather than argued: with this PR's requestedCursorRef removed from the walk's target — that is, the pre-PR expression Math.max(cursorRef.current, 1) — the new test still fails. What the branch did add is one extra page of over-walk in the narrower case where a load-more was pending at the same moment. So: real defect, correctly found, worth fixing here, but the PR's own change is an amplifier and not the cause.

The fix. Both cursors are retired at the moment a replacement is issued, in load when offset === 0, rather than when its page lands. The rows on screen are deliberately left alone — whether to blank them mid-change is a per-screen presentation choice expressed through reloading (AuditPage blanks, FeedPage must not), whereas these two are server cursors and the server has just been asked to start over.

Tests, both of the shape you asked for — a multi-page filter A window, a write superseding an unresolved filter B replacement:

• walks the NEW filter only as deep as the new filter has been loaded — asserts the post-write walk requests filter B at offset 0 only, and that the abandoned replacement stays stale when it finally answers.
• does not empty the new filter's window when the retired depth's page fails — the consequence you named, stated as behaviour: the retired depth's page rejects, and the window keeps filter B's good first page with no error raised.

Mutation check, snapshot-restored, baseline and restore both green:

Mutant	Result
no retirement at all	both new tests red
retire the ask but not the cursor	both new tests red
retire the cursor but not the ask	both new tests red
retire on an extension too (offset === 0 → true)	7 tests red, including the whole post-write walk suite

Each half is independently load-bearing, which is why the middle two mutants matter: either cursor left standing alone reproduces the finding.

Full SPA suite 2213/2213, typecheck clean.

On the second half of your review — no additional panel-refresh issue in InventoryPage.refreshAll: agreed, and thank you for checking the paths the tests don't reach.

Not re-triggering a review round for this: the loop's stop rule is the owner's call and this round has now confirmed one real product defect, so the next round is worth having only if a human wants it.