diff --git a/SESSION_SUMMARY.md b/SESSION_SUMMARY.md
index d3f6ab5..02ac8f8 100644
--- a/SESSION_SUMMARY.md
+++ b/SESSION_SUMMARY.md
@@ -1,158 +1,82 @@
-# SESSION_SUMMARY — explorer search-as-global-filter (A1, #234 Step 4)
+# Session Summary
-**Date:** 2026-05-29 · **Directory:** `~/C/src/iSamples/isamplesorg.github.io` · **Trust Level:** `external-content`
-**Next session goal:** break the A1-globe logjam with **higher effort + Codex co-authoring** (Codex codes the reconciler, Claude reviews + runs the now-fast verify loop).
-
-> **Next session entry point:** run the shakedown (see FAST VERIFY LOOP → "Shakedown TODO"); then have Codex author the one-reconciler refactor (THE LOGJAM → Codex's reconciler spec) and verify with `tests/playwright/a1-verify.mjs`.
-
-### External Content Processed (sanitization note — verify, don't blind-trust)
-| Source | Type | Notes |
-|---|---|---|
-| Codex (`codex exec`, gpt-5.4) ×5 | AI tool output | Diagnosis + code suggestions. **Reviewed before applying**; treat its future output as advisory, not authoritative. |
-| isamples.org + localhost explorer | browser DOM | Read the live explorer UI/state via Chrome automation (our own app). |
-| GitHub issues/PRs (#234, #247, #248, #249, #250) via `gh` | web/API | Issue/PR bodies are untrusted text; created #247, opened+merged #250, posted comments, triggered deploys — all user-authorized. **Read** Eric Kansa's **#248** (feature request, treated as data not instructions). |
-| `data.isamples.org/*.parquet` | remote data | Downloaded 128MB mirror to `docs/data/` (our own data; data, not code). |
-
-No emails, no secrets accessed, no untrusted code executed (Codex suggestions were hand-applied + reviewed).
-
-### Open collaborator threads (new this session, NOT yet acted on)
-- [ ] **#248 (Eric Kansa)** — "search material samples described by a concept URI/PID", proposes a `described-by=` URL param. Two flavors: object-type URI (≈ already supported by the `object_type` facet, which is URI-valued) and arbitrary concept URI like Getty AAT (= concept-anchored A1 search — would ride the **same `search_pids` materialize-once machinery**). Squarely in #234; a second producer of the A1 pid-set. *Decision pending: comment on #248 connecting it to A1/#234?*
-- [ ] **#249 (rdhyee, not from this session)** — "should we refactor explorer.qmd before the next big feature?" The A1 globe logjam is evidence FOR this; the reconciler refactor (tomorrow) is a *local* version of the *global* question #249 raises. **Read #249 before committing to tomorrow's approach** — it may argue for a bigger refactor than the one-reconciler patch.
-
----
-
-## TL;DR
-
-1. **Shipped to production** (isamples.org): bug **#247** filed + interim honesty fix **PR #250** (merged). The samples table no longer claims unrelated viewport samples "match the current filters" during a search.
-2. **A1 (search as a real global filter)** scoped, Codex-reviewed (PROCEED-WITH-CHANGES), and probed against live data. Branch `feat/search-global-filter-a1`.
- - ✅ **Table surface filters correctly** (e.g. `bucchero` → "2,693 of 2,693 matches in this map view", OpenContext rows only).
- - ✅ Facet counts + cube-gating wired; pid-set machinery + persistence proven.
- - ❌ **GLOBE still won't enter point mode** on a committed search (table filters, but the map stays unfiltered clusters). This is the logjam.
-3. **Built a fast/deterministic verify-loop** (local parquet mirror + range server + `window.__a1state`/`__a1globe` observability + Playwright harness) so tomorrow's iteration isn't 40–90s/cycle. Range-verified; full speedup run still needs a shakedown.
+## Session: 2026-05-30/31 (evening)
+**Directory**: `~/C/src/iSamples/isamplesorg.github.io`
+**Trust Level**: external-content
---
-## Branch & commits
+## What Happened
-`feat/search-global-filter-a1` (off `upstream/main` which already has #250):
-- `204d2df` table surface (pid-set + semi-join + summaryText)
-- `936f1f3` points/facets/cube-gate/C3 wired — globe buggy
-- `4e79830` Codex's C3 fixes (moveEnd latch, awaitable enterPointMode, search-token staleness) — globe STILL not entering point mode
-- `62d5500` dev verify-loop infra (mirror support + dev_server.py + a1dbg/__a1state/__a1globe)
+A long, productive session. Started as "tackle the fast-verify shakedown"; ended with **A1 shipped to production (isamples.org)** and **#248 underway**.
-Production (already merged, do NOT redo): upstream `a4da97b` (#250).
+1. **Shakedown root-caused & fixed.** The dev `?data_base=/data` override produced root-relative parquet URLs that DuckDB-WASM's httpfs can't fetch (read as a virtual-FS glob → zero fetches). Resolved to absolute against `location.origin`. This unblocked the fast verify loop (~2.3s to live).
+2. **The "globe logjam" was never real** — it was a **backgrounded-Chrome-MCP-tab artifact** (Chrome freezes rAF in hidden tabs → Cesium camera never settles → "globe won't enter point mode"). In any foreground/headless context the C3 fixes work. The reconciler refactor was unnecessary. **Lesson: drive the verify loop with `HEADLESS=1` Playwright, never the MCP tab.**
+3. **Fixed an A1 search perf regression** the CI smoke gate caught (double facets scan → materialize side-panel columns+score into `search_pids`, one scan).
+4. **Fixed the live facet-padding mismatch** RY hit (legend pad-0 vs table 0.3 → facet read low; e.g. material=rock ~166 vs ~481). Now facet == table.
+5. **Shipped A1**: opened **PR #251**, ran a 3-round **Codex review/revise loop to dual approval** (Codex caught a real `search_pids` staging-table race, heatmap search-blindness, and a stale-reader follow-on — all fixed), then **squash-merged to upstream → deployed to isamples.org** (smoke gate green).
+6. **Started #248 (Eric Kansa's concept-URI search)**: posted a connecting comment, Codex plan-reviewed ("mostly sound + guardrails"), and committed the **foundation** on `feat/described-by-concept`.
+7. **Investigated a transient camera freeze** (RY's `h3=`+`heading=` deep-link, also on isamples.org). Ruled out locked controller / tracked-entity / refresh-loop via a new `?debug=a1` `__a1camera` hook; **resolved on its own → likely transient WebGL context-loss / network**. Surfaced a real **testing gap**: no gate asserts post-hydration *interactivity*.
---
-## The A1 design (Strategy B — agreed + Codex-approved)
+## Safe to Carry Forward
-On a committed search, `buildSearchFilter()` materializes a **non-temp** DuckDB table `search_pids` (one `ILIKE` scan over `facets_url`), then every surface constrains with a cheap semi-join `AND pid IN (SELECT pid FROM search_pids)`. State on `window.__searchFilter {active,term,token,total}`; predicate via `window.searchFilterSQL(col)`.
+### Key Decisions
+- A1 ships on plain ILIKE; **BM25 (#168–172) is a perceived-perf follow-up, not a correctness blocker.**
+- `search_pids` is a **singleton**; any new producer (#248) shares one `_searchFilterToken`/`_searchSeq` and the `kind: 'text'|'concept'` tag.
+- Codex-reviewed A1 invariants to preserve: **token-scoped staging table**, **empty-table clear** (never DROP the live table), **build-failure distinguished from empty results**.
+- `?debug=a1`-gated hooks: `__a1globe`, `__a1log`/`__a1state`, and (new, uncommitted/diagnostic) `__a1camera`.
-**Probe findings (de-risked the design):** pid is unique (no dup), facets ⊆ lite so **no coordinate-less matches** (table count == mappable matches — simple "N of M in view" copy), broadest realistic term ~82k pids (no million-row blowup). Full scoping + Codex resolutions in **`A1_SCOPING.md`**.
+### Branch / ship state
+- **A1**: merged to upstream `main` as **`e6f9def`** (PR #251), live on isamples.org + rdhyee. Local `feat/search-global-filter-a1` is now redundant (squash-merged).
+- **#248**: branch **`feat/described-by-concept`** off merged main; foundation commit **`f2eac35`** (`conceptLabelForUri` + `buildConceptFilter`, behavior-neutral, verified).
-Surfaces wired: `loadCount`/`loadPage` (table) ✅ verified; `loadViewportSamples` (points); `updateCrossFilteredCounts` (facet legend, + gate cube fast-path & global-baseline when search active); `summaryText` copy.
+### Files Changed (this session, across A1 + #248)
+- `explorer.qmd` — A1 data_base fix, double-scan collapse, facet-padding, Codex fixes (staging race / heatmap / empty-clear / build-failure msg), `?debug=a1` gating; #248 `conceptLabelForUri` + `buildConceptFilter`.
+- `dev_server.py` — HTTP/1.1; `tests/playwright/a1-verify.mjs` — `HEADLESS=1` flag; new probes `globe-points-probe.mjs`, `shakedown-206.mjs`; `tests/playwright/facet-viewport.spec.js` — coherence test.
----
-
-## THE LOGJAM (start here tomorrow)
-
-**Symptom:** search `bucchero` → table = "2,693 of 2,693 matches" (✅), but globe phaseMsg/stat stay **cluster** and `exitPointMode` runs. Even a clean **manual** search (not just boot) fails → it's a real state-machine bug, not a boot race.
-
-**Codex's diagnosis (correct, partially fixed in `4e79830`):**
-1. ✅ FIXED — post-search `flyTo` lands at **200 km > EXIT_POINT_ALT (180 km)**, and the `moveEnd` handler exited point mode without checking `searchIsActive()`. Latched now.
-2. ✅ FIXED — `enterPointMode` was fire-and-forget; now `async` + `await loadViewportSamples()`, awaited at all call sites.
-3. ✅ FIXED — `loadViewportSamples` staleness was `requestId`-only; now also keys on the search token (`isStaleLoad()`).
-4. ⏳ **NOT DONE — the actual remaining fix:** `applySearchFilterChange()` is a **parallel** mode-entry path racing the camera/mode machinery. Codex recommends **replacing it with ONE reconciler** that both the camera handler and search call, so "search forces point" and "altitude decides mode" live in one predicate with one set of staleness tokens.
-
-**Codex's reconciler spec (implement this):**
-```js
-async function reconcileGlobeForCurrentFilters(pushHistory = false) {
- syncFacetNote();
- refreshHeatmap();
- if (searchIsActive()) {
- if (getMode() !== 'point') await enterPointMode(pushHistory);
- else await loadViewportSamples();
- } else {
- // existing altitude-driven cluster/point behavior
- }
- refreshFacetCounts();
- window.refreshSamplesTable?.();
-}
-```
-Call it from search completion AND the relevant camera paths; delete the bespoke `applySearchFilterChange` mini-state-machine. **Open question to nail with the new observability:** why does `enterPointMode` not stick on a manual search? (`[A1dbg]` events `apply-search-change`, `mode-change`, `post-build` will show the sequence — see below.)
-
-**Other bugs Codex flagged (not yet addressed):**
-- Heatmap `renderHeatmap()` omits `searchFilterSQL` and `heatmapFilterHash()` omits the search token → heatmap (labeled "filtered density") stays unfiltered under search. (PR#2 or fix now.)
-- Selection revalidation (`~L3457`) checks only source, not the search filter — clear/revalidate selection on search change.
+### Patterns/Learnings
+- **Backgrounded tabs freeze rAF** → corrupts every globe/camera observation. Headless Playwright is the reliable instrument.
+- **Don't pile up runs**: accumulated hung browsers hold HTTP/1.1 keep-alive + peg CPU and starve `dev_server.py`. Restart between batches.
+- **Local mirror full-downloads** (GET 200, not 206) — fine on localhost; validate range/perf on the deploy, not the mirror.
+- Codex's `codex exec ... -o FILE` often fails to capture the final message when the diff is large; read the verdict from the streamed `.log` instead (resume the session for continuity).
---
-## PERFORMANCE MODEL — why the UI hides the 40s, and what A1 does to it
-
-(RY's framing, 2026-05-29 — worth keeping front-of-mind for the substrate-vs-progress-UI call.)
-
-The explorer never *feels* like a 40–90s app because the whole design is **"never fetch big data over a wide area."** Data is tiered by zoom, smallest-first, and the tiny tiers are **preloaded** (`explorer.qmd` L14–17: `` for h3 res4 + facet_summaries + vocab_labels):
+## External Content Processed
-| User action | Fetched | Size | Felt |
-|---|---|---|---|
-| Land on globe (zoomed out) | H3 res4 | **580 KB** (preloaded) | instant (`Load Time 0.4s`) |
-| Zoom in / more | H3 res6 / res8 | 1.6 / 2.5 MB | fast |
-| Zoom **deep** → point mode | `samples_map_lite` | 60 MB file… | **still fast** ↓ |
-
-The trick on that last row: by the time `samples_map_lite` (60 MB) is touched, the camera is deep (alt < `ENTER_POINT_ALT` 120 km), so the bbox is tiny. DuckDB-WASM does **HTTP range requests** and pulls only the parquet **row groups** overlapping that small bbox (a few MB), never the whole file. So the big files are only ever read in slivers. UX masking on top: instant res4 globe, phase messages, stale-while-loading (dimmed old rows).
-
-**The two operations with NO spatial narrowing** (= the only ones that can hit the full 40s; both were what I kept triggering in dev):
-1. **Free-text search** — `ILIKE '%term%'` over `label/description/place_name` across the *whole* `sample_facets_v2.parquet` (63 MB text). ILIKE can't skip row groups; it's a full column scan. Irreducible without an index.
-2. **Samples table at a wide viewport** — `loadCount` over a world-sized bbox counts ~everything (normal users zoom in first, shrinking it).
-
-**The A1 implication (the load-bearing point):** A1 takes operation #1 — the single slowest thing in the app — and moves it to the **front of the common flow.** Today search is an optional side-panel lookup; A1 makes every committed search run that full 63 MB scan *first* and gates the filtered view on it. So A1 risks importing the one 40s wait into exactly the place the rest of the UI worked to avoid it. That's why:
-- The **"Building search filter…"** affordance matters (honest masking, like the rest of the app).
-- **BM25 substrate (#168–172)** is the thing that makes a *cold* search feel as snappy as zooming — NOT a correctness blocker (the pid-set abstraction works on plain ILIKE), but the perceived-perf fix.
-- The **materialize-once** design is the mitigation: pay the un-narrowable full scan *one time* per term, then every pan/zoom/facet-toggle is a cheap `pid IN (…)` semi-join that DOES narrow spatially — folding search back into the fast tier after the first hit.
-
-(This also reframes the cold-load floor below: init ~40s is one thing, but the search scan is the *product-facing* slow path, and it's the one A1 must manage.)
-
----
-
-## FAST VERIFY LOOP (built today — use it tomorrow)
-
-**Why today was slow:** every iteration was a cold reload. Cold cost is **init-dominated** — DuckDB-WASM (from CDN) + Cesium + the OJS reactive graph take ~40s **before any data query**, and the search `ILIKE` then downloaded ~60MB of text columns over the network. Console capture from the automation harness was also flaky.
-
-**The fix (set up, committed in `62d5500`):**
-1. **Local parquet mirror** — `docs/data/*.parquet` (128MB, gitignored via `docs` + `*.parquet`). Re-fetch with:
- `for f in isamples_202601_{samples_map_lite,sample_facets_v2,h3_summary_res4,h3_summary_res6,h3_summary_res8,facet_cross_filter,facet_summaries}.parquet vocab_labels.parquet; do curl -s -o docs/data/$f https://data.isamples.org/$f; done`
- (⚠️ `current/wide.parquet` came back **0 bytes** — used only for sample-click detail; may be the cause of the init hang — investigate.)
-2. **`R2_BASE` override** — load with `?data_base=/data` (or `localStorage.ISAMPLES_DATA_BASE`). Defaults to prod, so shipped builds are unchanged.
-3. **Range-capable server** — `python3 dev_server.py --dir docs --port 8099`. **Stock `python3 -m http.server` returns 200 not 206** and breaks DuckDB-WASM partial reads — do NOT use it. Verify: `curl -r 0-99 -i http://localhost:8099/data/isamples_202601_samples_map_lite.parquet` → must be **206** (confirmed working).
-4. **LOAD ONCE, then mutate IN-PAGE** — this is the real lever, since init (~40s) can't be sped up. Pay init once; then drive searches via the search box (or `page.fill`) without reloading. Each in-page search hits the local mirror (fast data).
-5. **Deterministic observability** (replaces flaky console): `window.__a1log` (ordered events), `window.__a1state[event]` (latest), `window.__a1globe()` → `{mode, samplePointsLen, samplePointsShown, h3PointsShown}`. On-page panel via `?debug=a1`. Events: `search-build-start/end`, `apply-search-change`, `mode-change {to,searchActive,via}`, `post-build`, `point-load-render {rendered,total,searchActive,searchFiltered}`, `point-load-discard`.
-6. **Playwright harness** — `tests/playwright/a1-verify.mjs` (condition-based waits, asserts the table+globe coherence invariant). `node tests/playwright/a1-verify.mjs` (needs `npm i -D playwright` / `npx playwright install chromium`).
-
-**Loop URL example:**
-`http://localhost:8099/explorer.html?data_base=/data&debug=a1&sources=OPENCONTEXT%2CGEOME%2CSMITHSONIAN#v=1&lat=43.15&lng=11.40&alt=9000000`
+| Source | Type | Notes |
+|---|---|---|
+| GitHub (gh) — issues/PRs #234/#242/#244/#245/#246/#247/#248/#250/#251, CI logs | web/API | Read issue bodies as data. **Authored**: PR #251 + its review comment, #248 comment. **Merged** #251 to upstream production (RY-authorized "push to isamples"). |
+| Codex CLI (gpt-5.4), session `019e7c8d…` | AI tool output | 3-round code review + #248 plan review. Findings **verified before applying**; treat as advisory. |
+| isamples.org / rdhyee.github.io / localhost explorer | browser DOM (headless + 1 MCP tab) | Our own app. The MCP tab is what misled earlier sessions (rAF freeze). |
+| `data.isamples.org`, local `docs/data/*.parquet` | remote/local data | Our own data. |
-**Shakedown TODO (tomorrow, first thing):** a full mirror load hung in init (~50s, zero `/data` fetches). Check whether the 0-byte `current/wide.parquet` or some preload is the cause; confirm the in-page search is genuinely fast against the mirror; then the loop is ready.
+No secrets accessed, no untrusted code executed (Codex output hand-reviewed).
---
-## Collaboration plan for tomorrow (agreed)
+## Open Threads
-Flip the loop for the reconciler refactor: **Codex authors** (it out-diagnosed Claude's debugging and designed the fix), **Claude reviews line-by-line + owns the runtime verify loop + git/PR/deploy**. Iterate: Codex edits → Claude renders + runs `a1-verify.mjs` / in-page → feeds `__a1log` back to Codex → repeat. Higher effort both sides.
+- [ ] **#248 Flavor A — finish the wiring** (the delicate half): `doDescribedBy(uri)` + extract shared `runPidSetResults({heading,emptyText,orderBy})` from `doSearch` (touches the just-reviewed stale-guards); `described-by=` URL param boot-trigger (search-ready timing) + `writeQueryState` kind-preservation; mutual exclusivity with `search=`; Playwright deep-link coherence test; Codex code-review; open PR. (Codex guardrails are in commit `f2eac35`'s message + the plan in `/tmp/p248.md`.)
+- [ ] **Close #245** (facet-padding) — superseded by #251 (RY hadn't confirmed; do at pickup).
+- [ ] **#244** (collection-facet DRAFT) and **#246** (points-over-heatmap) — need rebase on the new `main` (A1 + facet-padding); #246 worth checking points-over-heatmap *under a search*.
+- [ ] **#248 Flavor B** (arbitrary/Getty URIs) — needs URI→label resolution + free-text fallback; follow-up.
+- [ ] **Testing-gap follow-up**: add a deep-link **interactivity** regression test (assert `enableInputs`/no-trackedEntity + camera actually moves), using the `__a1camera` hook. (Hook is uncommitted/local; re-add when building the test.)
+- [ ] Deferred A1 items: selection revalidation on search change; BM25 substrate (#168–172).
---
-## Cleanup before the A1 PR is opened (don't ship these)
+## Next Session Entry Point
-- Remove the **`a1PersistenceProbe`** dev cell (right after the `db` cell) — persistence already proven.
-- Decide on `a1dbg`/`__a1log`/`__a1state`/`__a1globe` + `?debug=a1` panel: gate behind a dev flag or strip. The `R2_BASE ?data_base=` override and `dev_server.py` are worth KEEPING (useful, safe defaults).
-- The double-scan in `doSearch` (pid-set build + the existing LIMIT-50 side-panel query both scan facets) — follow-up: derive the side-panel list from `search_pids`.
-- Heatmap + selection-revalidation search-awareness (above).
+> Start here: continue **#248 Flavor A** on `feat/described-by-concept` (foundation `f2eac35` done). Next concrete step is `doDescribedBy` + extracting `runPidSetResults` from `doSearch`, then the `described-by=` URL plumbing + mutual-exclusivity, then test → Codex review → PR. Verify loop: `python3 dev_server.py --dir docs --port 8099` + `HEADLESS=1 node tests/playwright/a1-verify.mjs`.
---
-## Key references
+## Session History
-- `explorer.qmd` anchors: `buildSearchFilter`/`clearSearchFilter`/`applySearchFilterChange` (~L3534), `loadViewportSamples` (~L2510), `enterPointMode`/`exitPointMode` (~L2680/2700), camera `moveEnd` handler (~L3709), camera `changed` handler (~L3560), `summaryText`/`loadCount`/`loadPage` (tableView cell ~L2123), `R2_BASE` (~L683), a1dbg/`__a1globe` install (~L4028).
-- `A1_SCOPING.md` — full scope + probe + Codex resolutions.
-- `dev_server.py`, `tests/playwright/a1-verify.mjs` — the loop.
-- Issues: #234 (umbrella, A1 = Step 4), #247 (the bug, interim fixed by #250), #168–172 (FTS substrate — optional latency win, NOT a blocker for A1).
+| Date | Trust | Summary |
+|---|---|---|
+| 2026-05-30/31 | external-content | Shakedown root-caused; A1 logjam = backgrounded-tab artifact; A1 perf + facet-padding fixed; Codex loop → dual approval; **A1 merged & deployed to isamples.org** (#251); #248 started (`feat/described-by-concept` foundation). |
+| 2026-05-29 | external-content | (prior) A1 scoping + globe logjam framing (superseded — there was no logjam). |
diff --git a/explorer.qmd b/explorer.qmd
index af55ac9..05fbba0 100644
--- a/explorer.qmd
+++ b/explorer.qmd
@@ -827,12 +827,43 @@ function applyQueryToFacetFilters() {
}
-function writeQueryState() {
+function writeQueryState(opts = {}) {
const params = new URLSearchParams(location.search);
const searchInput = document.getElementById('sampleSearch');
const q = searchInput ? searchInput.value.trim() : '';
- if (q) params.set('search', q);
- else params.delete('search');
+ // #248 Flavor A: `search=` (free text) and `described-by=` (concept URI)
+ // both produce the singleton search_pids and are mutually exclusive.
+ //
+ // doSearch passes `opts.commitText` to AUTHORITATIVELY persist (a term) or
+ // clear ('') a text search: it calls writeQueryState EARLY, before
+ // buildSearchFilter flips __searchFilter.kind to 'text', so it can't read
+ // filter state — its committed term is the source of truth.
+ //
+ // Every OTHER caller (facet-change + source-change handlers, doDescribedBy)
+ // omits commitText, so the URL mirrors the COMMITTED filter in
+ // window.__searchFilter, NOT the raw text box. This is Codex finding #1:
+ // with an active concept filter, draft (un-submitted) text in the box plus
+ // a facet/source toggle must NOT clobber `described-by=` with a phantom
+ // `search=`. Keying passive writes off __searchFilter (concept) vs. the box
+ // (text) keeps the URL honest about what's actually filtering.
+ const sf = (typeof window !== 'undefined') ? window.__searchFilter : null;
+ const conceptActive = !!(sf && sf.active && sf.kind === 'concept' && sf.uri);
+ if (opts.commitText !== undefined) {
+ if (opts.commitText) params.set('search', opts.commitText);
+ else params.delete('search');
+ params.delete('described-by');
+ } else if (conceptActive) {
+ params.set('described-by', sf.uri);
+ params.delete('search');
+ } else {
+ // No concept filter and no explicit text commit: preserve the prior
+ // (pre-#248) behavior — reflect the text box. A committed text search
+ // keeps its term across facet/source toggles (the box still holds it);
+ // an inactive/empty state clears `search=`.
+ params.delete('described-by');
+ if (q) params.set('search', q);
+ else params.delete('search');
+ }
const activeSources = getActiveSources();
if (activeSources.length === SOURCE_VALUES.length) params.delete('sources');
@@ -1763,6 +1794,10 @@ facetFilters = {
const parts = s.replace(/[#?].*$/, "").split("/").filter(Boolean);
return parts.length ? parts[parts.length - 1] : s;
};
+ // #248: expose the URI→prefLabel resolver so the concept-filter producer
+ // (buildConceptFilter, in the zoomWatcher cell) can label a `described-by=`
+ // URI without re-querying vocab_labels. Best-effort: falls back to URI tail.
+ if (typeof window !== 'undefined') window.conceptLabelForUri = prettyLabel;
try {
const summaries = await db.query(`
@@ -4130,7 +4165,7 @@ zoomWatcher = {
const cnt = Array.from(await db.query(`SELECT COUNT(*) AS n FROM search_pids`));
const total = cnt.length ? Number(cnt[0].n) : 0;
if (token !== _searchFilterToken) return false;
- window.__searchFilter = { active: true, term, token, total };
+ window.__searchFilter = { active: true, term, token, total, kind: 'text' };
window.a1dbg?.('search-build-end', { term, token, total });
return true;
} finally {
@@ -4138,6 +4173,47 @@ zoomWatcher = {
}
}
+ // #248 Flavor A: a SECOND producer of `search_pids` — selects samples whose
+ // iSamples-vocabulary concept (the URI-valued object_type / material /
+ // context columns in sample_facets_v2) exactly matches `uri`. Mirrors
+ // buildSearchFilter's token-scoped staging + finally-drop + token guards,
+ // sharing the same _searchFilterToken (the pid-set is a singleton). Every
+ // surface then filters via the same `pid IN (SELECT pid FROM search_pids)`
+ // semi-join, for free. Flavor B (arbitrary external/Getty URIs needing
+ // URI→label resolution + free-text) is a follow-up.
+ async function buildConceptFilter(uri) {
+ const token = ++_searchFilterToken;
+ const label = (typeof window !== 'undefined' && window.conceptLabelForUri)
+ ? window.conceptLabelForUri(uri) : uri;
+ window.a1dbg?.('search-build-start', { term: label, token, kind: 'concept' });
+ const u = escSql(uri);
+ // Rank object_type matches above material above context, then by label
+ // (Codex plan-review suggestion — cheap, no extra scan).
+ const rank = `CASE WHEN object_type = '${u}' THEN 3 WHEN material = '${u}' THEN 2 WHEN context = '${u}' THEN 1 ELSE 0 END`;
+ const staging = `search_pids_next_${token}`;
+ try {
+ await db.query(`
+ CREATE OR REPLACE TABLE ${staging} AS
+ SELECT pid, label, source, place_name, (${rank}) AS relevance_score
+ FROM read_parquet('${facets_url}')
+ WHERE pid IS NOT NULL
+ AND (object_type = '${u}' OR material = '${u}' OR context = '${u}')
+ `);
+ if (token !== _searchFilterToken) return false; // superseded mid-build
+ await db.query(`CREATE OR REPLACE TABLE search_pids AS
+ SELECT pid, label, source, place_name, relevance_score FROM ${staging}`);
+ if (token !== _searchFilterToken) return false;
+ const cnt = Array.from(await db.query(`SELECT COUNT(*) AS n FROM search_pids`));
+ const total = cnt.length ? Number(cnt[0].n) : 0;
+ if (token !== _searchFilterToken) return false;
+ window.__searchFilter = { active: true, term: label, token, total, kind: 'concept', uri };
+ window.a1dbg?.('search-build-end', { term: label, token, total, kind: 'concept' });
+ return true;
+ } finally {
+ try { await db.query(`DROP TABLE IF EXISTS ${staging}`); } catch (e) { /* best effort */ }
+ }
+ }
+
async function clearSearchFilter() {
_searchFilterToken++;
window.__searchFilter = { active: false, term: null, token: _searchFilterToken, total: 0 };
@@ -4181,11 +4257,11 @@ zoomWatcher = {
// page returns to its unfiltered state.
await clearSearchFilter();
await applySearchFilterChange();
- writeQueryState();
+ writeQueryState({ commitText: '' }); // authoritative clear (#248)
persistSearchScope(effectiveScope);
return;
}
- writeQueryState();
+ writeQueryState({ commitText: term }); // authoritative text commit (#248)
persistSearchScope(effectiveScope);
// A1 (#234 Step 4): the pid-set filter is built below (after `terms`
// is parsed) and the dependent surfaces are refreshed against it; the
@@ -4696,6 +4772,198 @@ zoomWatcher = {
}
}
+ // #248 Flavor A: commit a concept-URI filter. This is the SECOND entry
+ // point into the shared `search_pids` machinery — `buildConceptFilter`
+ // is the producer, `applySearchFilterChange` pushes the result to every
+ // surface (table / points / facet counts / globe mode), exactly as a text
+ // search does. It deliberately does NOT reuse doSearch's body: doSearch
+ // carries A1's text-search stale-guard + COUNT logic shipped in #251, and
+ // we keep that hot path untouched (RY decision, 2026-06-01). It renders its
+ // own, simpler side panel instead. Mutually exclusive with the free-text
+ // search: committing a concept clears the text box and the `search=` param.
+ async function doDescribedBy(uri) {
+ if (!uri) return;
+ // Share doSearch's freshness counter so a text search and a concept
+ // filter can't clobber each other's side-panel render mid-flight.
+ const searchId = ++_searchSeq;
+
+ // Mutual exclusivity: a committed concept filter OWNS search_pids, so
+ // clear the free-text box (and its sidebar mirror) before building.
+ if (searchInput) searchInput.value = '';
+ const sidebarInput = document.getElementById('sampleSearchSidebar');
+ if (sidebarInput) sidebarInput.value = '';
+
+ if (searchResults) searchResults.textContent = 'Filtering by concept…';
+
+ // Build the pid-set. buildConceptFilter mirrors buildSearchFilter's
+ // token-scoped staging + finally-drop guards and publishes the result
+ // (label, total, kind:'concept', uri) on window.__searchFilter. A build
+ // failure empties search_pids via clearSearchFilter (same as doSearch),
+ // so downstream readers see zero rows rather than a missing table.
+ let buildFailed = false;
+ try {
+ await buildConceptFilter(uri);
+ } catch (e) {
+ console.warn('#248 concept-filter build failed; surfaces stay unfiltered:', e);
+ buildFailed = true;
+ await clearSearchFilter();
+ }
+ window.a1dbg?.('concept-post-build', { searchId, searchSeq: _searchSeq, active: window.__searchFilter?.active, total: window.__searchFilter?.total });
+ // Superseded during build? Bail before touching ANY shared state. The
+ // winning producer owns the surfaces AND the URL (Codex finding #2: a
+ // stale producer must not run writeQueryState off another's filter).
+ if (searchId !== _searchSeq) return;
+ await applySearchFilterChange();
+ // Re-check after the async surface refresh, BEFORE writeQueryState: if a
+ // newer search/concept superseded us mid-refresh, it — not this stale
+ // producer — must be the one that writes the URL.
+ if (searchId !== _searchSeq) return;
+ // Persist `described-by=` (drops `search=`) now that __searchFilter
+ // reflects this concept and we're confirmed the current producer.
+ writeQueryState();
+
+ const sf = window.__searchFilter;
+ const label = (sf && sf.term) ? sf.term
+ : (typeof window !== 'undefined' && window.conceptLabelForUri) ? window.conceptLabelForUri(uri) : uri;
+ const total = (sf && sf.active && sf.kind === 'concept') ? sf.total : 0;
+
+ // Sticky heading mirrors doSearch's, recolored (purple) to distinguish a
+ // concept filter from a text search. `label` is usually a vocab pref
+ // label, but for an unknown URI it falls back to the URI tail — i.e. it
+ // can be attacker-controlled via the `described-by=` URL param. Escape
+ // it before innerHTML to close the reflected-XSS path (Codex finding #3).
+ // `suffix` is internal (counts) and safe.
+ const safeLabel = escapeHtml(label);
+ const headingHTML = (suffix) =>
+ `
Samples described by: ${safeLabel}${suffix}
`;
+
+ if (buildFailed) {
+ if (searchResults) searchResults.textContent = `Concept filter failed for "${label}". Please try again.`;
+ const sElF = document.getElementById('samplesSection');
+ if (sElF) sElF.innerHTML = headingHTML('')
+ + '
Filter failed to build — please try again.
';
+ return;
+ }
+ if (total === 0) {
+ if (searchResults) searchResults.textContent = `No samples described by "${label}"`;
+ const sEl0 = document.getElementById('samplesSection');
+ if (sEl0) sEl0.innerHTML = headingHTML(' (0)')
+ + '
No samples matched this concept.
';
+ return;
+ }
+
+ // Side-panel list: read the LIMIT-50 head straight off search_pids
+ // (already built + ranked by buildConceptFilter: object_type > material
+ // > context, then label), LEFT JOIN lite for coords so coord-less
+ // samples still list (null lat/lng; the click handler guards on null).
+ let results;
+ try {
+ results = await db.query(`
+ SELECT s.pid, s.label, s.source, l.latitude, l.longitude,
+ s.place_name, s.relevance_score
+ FROM search_pids s
+ LEFT JOIN read_parquet('${lite_url}') l USING (pid)
+ ORDER BY s.relevance_score DESC, s.label
+ LIMIT 50
+ `);
+ } catch (err) {
+ if (searchId !== _searchSeq) return;
+ console.error('#248 concept side-panel query failed:', err);
+ if (searchResults) searchResults.textContent = `Concept filter error: ${err.message}`;
+ return;
+ }
+ if (searchId !== _searchSeq) return;
+
+ const shown = results.length;
+ const ofTotal = total > shown ? `${shown} of ${total.toLocaleString()}` : `${shown}`;
+ if (searchResults) searchResults.textContent = total > shown
+ ? `${shown} of ${total.toLocaleString()} samples described by "${label}"`
+ : `${shown} sample${shown === 1 ? '' : 's'} described by "${label}"`;
+
+ const sampEl = document.getElementById('samplesSection');
+ if (sampEl) {
+ let h = headingHTML(` (${ofTotal})`);
+ for (const s of results) {
+ // Escape every interpolated value (Codex finding #3): label/pid
+ // come from the parquet, color/name from controlled maps, sUrl
+ // into an href attribute — escapeHtml handles both text and
+ // attribute contexts (it escapes quotes). lat/lng are numeric.
+ const color = escapeHtml(SOURCE_COLORS[s.source] || '#666');
+ const name = escapeHtml(SOURCE_NAMES[s.source] || s.source);
+ const sUrl = sourceUrl(s.pid);
+ const labelText = escapeHtml(s.label || s.pid);
+ const pidAttr = escapeHtml(s.pid || '');
+ h += `