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feat(04-01): curated KL gazetteer + lazy three-environment loader + GPL/ODbL licensing

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- kl-gazetteer.json: 30 hand-curated KL-metro landmarks (10 required + 20
  more) with locals' aliases as native data (D-08) — canonical OSM names
  as name, shorthand ('KLCC', 'DUKE', 'Sg Wang') as aliases — plus the
  ODbL-1.0 attribution header traveling inside the JSON (D-06/D-07)
- gazetteer.ts: the three laws — lazy memoized index never at module
  scope (Workers startup, T-04-04), static JSON import surviving
  wrangler/Vite/bare-Node (D-07), zero logging/storage (D-15); aliases
  normalized once at index-build (D-09 symmetry)
- source.ts: the D-03 SearchSource — async search() + synchronous byId()
  (slug-validated, honest null); tiered admission (fuzzy only at sim
  >= 0.72) so 'Kuching'/'Penang' refuse as [] — never a fabricated pin
- index.ts: the named-export public API (no default, subpath+extension
  imports per the @araharah/theme precedent)
- LICENSE: the verbatim GPL-3.0 text (D-04); LICENSES.md: the dual-licence
  note (code GPL-3.0, data ODbL-1.0 + OSM attribution); README: corrected
  licence section + search/ in the layout, four-package table, commands

G1-G11 + L1-L3 green (39/39); typecheck clean; esbuild bundle carries the
suria-klcc marker; wrangler dry-run exits 0; bot + web suites unaffected.
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araharah-executor
2026-10-24 00:36:03 +08:00
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This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.
LICENSES.md
+23
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@@ -0,0 +1,23 @@
# Licences
## Code — GPL-3.0
All araharah source code (the `bot/`, `web/`, `theme/`, and `search/` workspaces) is licensed under
the GNU General Public License v3.0. The full text is in [LICENSE](./LICENSE).
GPL-3.0 is a deliberate project law (D-04): a fork must be able to read, change, and redistribute the
whole system — including the parts that make it a working navigation product.
## Gazetteer data — ODbL-1.0
`search/src/data/kl-gazetteer.json` (and any index derived from it) is curated from OpenStreetMap
data and is made available under the Open Database License (ODbL) v1.0:
<https://opendatacommons.org/licenses/odbl/1-0/>
Attribution: © OpenStreetMap contributors.
The ODbL's share-alike obligation (ODbL §4.4) applies to a Derivative Database: the curated
gazetteer and any restructured form of it carry the same ODbL notice. The normalizer's index is a
derived, restructured form of the gazetteer and therefore carries the same notice.
Code and data are separately licensed — ODbL §2.3(a) excludes computer programs from the ODbL.
README.md
+9 -6
View File
@@ -14,13 +14,14 @@ The Telegram bot is **arah2bot**.
## Overview
arah² is an npm-workspaces monorepo with three packages:
arah² is an npm-workspaces monorepo with four packages:
| Package | Name | What it does |
|---|---|---|
| `theme/` | `@araharah/theme` | The Telemetry Rams design system as a Tailwind v4 CSS-first token package. Every color, spacing, type, and radius value in the project is defined once in `theme/src/tokens.css` and compiled to `theme/dist/rams.css`. Also ships the MapLibre basemap style `theme/basemap/liberty-rams.json` plus gallery/audit/screenshot tooling. |
| `bot/` | `@araharah/bot` | A [grammY](https://grammy.dev) Telegram bot running on a Cloudflare Worker. It serves the `/telegram/webhook` route, four JSON API routes, keeps TTL-only chat sessions in Workers KV, and serves the Mini App's static assets through a wrangler assets binding. |
| `web/` | `@araharah/web` | The Telegram Mini App: a MapLibre GL navigation shell built with Vite. Owns the three-source location acquisition chain, an in-memory session store, and the Telegram WebApp integrations (theme slots, BackButton, safe-area insets). |
| `search/` | `@araharah/search` | The shared, dependency-free destination-search module: the JUPEM-derived Malay abbreviation table as editable data, a symmetric normalizer, a Damerau (OSA) residual scorer with disjoint tiers, and the curated KL gazetteer with locals' aliases — imported by the bot, the Mini App, and the search-quality corpus runner. |
The Worker is the single origin. It answers `/api/*` and `/telegram/*` itself (`run_worker_first`) and serves everything else out of `web/dist`.
@@ -188,8 +189,8 @@ Run from the repo root, or with `-w <workspace>`.
| `npm run build` | Build the theme, then the Mini App |
| `npm run dev` | Build, then run the Worker locally on port `8787` |
| `npm run deploy` | Build, then `wrangler deploy` + `set-webhook.mjs` |
| `npm run bot:test` / `npm run web:test` | Run each package's zero-dependency test suite |
| `npm run bot:typecheck` / `npm run web:typecheck` | `tsc --noEmit` |
| `npm run bot:test` / `npm run web:test` / `npm run search:test` | Run each package's zero-dependency test suite |
| `npm run bot:typecheck` / `npm run web:typecheck` / `npm run search:typecheck` | `tsc --noEmit` |
| `npm run bot:commands` | Register the persistent Telegram command menu (EN + MS) |
| `npm run web:capture` | Capture Mini App screenshots |
| `npm run web:build:harness` | Dual build into `dist-harness/` with the mock installer and fetch stubs |
@@ -214,12 +215,14 @@ Privacy is structural, not a policy page:
theme/ @araharah/theme — tokens.css, components.css, theme.css, fonts/, basemap/, scripts/
bot/ @araharah/bot — src/webhook.ts entry, bot/, kv/, security/, i18n/, scripts/, wrangler.jsonc
web/ @araharah/web — src/main.ts entry, location/, map/, session/, telegram/, ui/, mock/
search/ @araharah/search — src/types.ts, src/normalize.ts, src/score.ts, src/gazetteer.ts, src/data/kl-gazetteer.json
stitch_minimalist_route_navigator/ read-only mockup screens (class-vocabulary source for the theme build)
DESIGN.md Rams philosophy — superseded for any specific value
```
## License
Private repository. No license file is present; all rights reserved by the project owner.
<!-- VERIFY: repository licensing — no `LICENSE` file exists in the working tree, and the project is marked `private: true` in `package.json`. -->
Code is licensed under **GPL-3.0** — the full text is in [LICENSE](./LICENSE). The curated KL
gazetteer (`search/src/data/kl-gazetteer.json`) is **data**, licensed separately under the Open
Database License (ODbL) v1.0 with attribution to © OpenStreetMap contributors; the dual-licence
note and the share-alike scope are in [LICENSES.md](./LICENSES.md).
search/src/data/kl-gazetteer.json
+278
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@@ -0,0 +1,278 @@
{
"_license": "ODbL-1.0",
"_attribution": "© OpenStreetMap contributors",
"_notice": "Curated from OpenStreetMap data. The curated gazetteer and any derived index are made available under the Open Database License (ODbL) v1.0 — https://opendatacommons.org/licenses/odbl/1-0/",
"version": 1,
"entries": [
{
"id": "suria-klcc",
"name": "Suria KLCC",
"aliases": ["Suria KLCC", "KLCC", "KLCC Park", "KLCC Mall", "Jalan Ampang"],
"lat": 3.1578,
"lng": 101.7117,
"category": "mall",
"address": "Jalan Ampang, 50088 Kuala Lumpur"
},
{
"id": "sunway-pyramid",
"name": "Sunway Pyramid",
"aliases": ["Sunway Pyramid", "Pyramid", "Sunway", "Sunway Pyramid Shopping Mall"],
"lat": 3.0726,
"lng": 101.6069,
"category": "mall",
"address": "Jalan PJS 11/15, Bandar Sunway, 47500 Subang Jaya"
},
{
"id": "the-duke",
"name": "Lebuhraya DUKE",
"aliases": ["Lebuhraya DUKE", "DUKE", "Duta-Ulu Klang Expressway", "Karak Link"],
"lat": 3.1357,
"lng": 101.6864,
"category": "highway",
"address": "Lebuhraya DUKE, 50000 Kuala Lumpur"
},
{
"id": "pavilion-kl",
"name": "Pavilion Kuala Lumpur",
"aliases": ["Pavilion Kuala Lumpur", "Pavilion", "Pavilion KL", "KL Pavilion"],
"lat": 3.1478,
"lng": 101.695,
"category": "mall",
"address": "Jalan Bukit Bintang, 55100 Kuala Lumpur"
},
{
"id": "ijnp",
"name": "Institut Jantung Negara",
"aliases": ["Institut Jantung Negara", "IJN", "IJN Hospital", "Institut Jantung Negara Malaysia"],
"lat": 3.1636,
"lng": 101.706,
"category": "hospital",
"address": "Jalan Tun Razak, 50400 Kuala Lumpur"
},
{
"id": "pwtc",
"name": "PWTC",
"aliases": ["PWTC", "Putra World Trade Centre"],
"lat": 3.1768,
"lng": 101.698,
"category": "convention",
"address": "Jalan Tun Razak, 50400 Kuala Lumpur"
},
{
"id": "kl-sentral",
"name": "KL Sentral",
"aliases": ["KL Sentral", "Stesen KL Sentral", "KL Central", "Sentral Station", "Stesen Sentral"],
"lat": 3.1343,
"lng": 101.6869,
"category": "station",
"address": "Jalan Stesen Sentral 5, 50470 Kuala Lumpur"
},
{
"id": "bangsar",
"name": "Taman Bangsar",
"aliases": ["Taman Bangsar", "Bangsar", "Bangsar Park"],
"lat": 3.1477,
"lng": 101.6875,
"category": "park",
"address": "Jalan Maarof, 59000 Kuala Lumpur"
},
{
"id": "kampung-ampang",
"name": "Kampung Ampang",
"aliases": ["Kampung Ampang", "Kg Ampang", "Ampang Village"],
"lat": 3.1456,
"lng": 101.712,
"category": "village",
"address": "Jalan Ampang, 68000 Ampang"
},
{
"id": "tun-razak",
"name": "Jalan Tun Razak",
"aliases": ["Jalan Tun Razak", "Tun Razak"],
"lat": 3.156,
"lng": 101.71,
"category": "road",
"address": "Jalan Tun Razak, 50400 Kuala Lumpur"
},
{
"id": "sungei-wang",
"name": "Sungei Wang Plaza",
"aliases": ["Sungei Wang Plaza", "Sungei Wang", "Sg Wang", "Sungai Wang"],
"lat": 3.1483,
"lng": 101.7068,
"category": "mall",
"address": "Jalan Bukit Bintang, 55100 Kuala Lumpur"
},
{
"id": "berjaya-times-square",
"name": "Berjaya Times Square",
"aliases": ["Berjaya Times Square", "Times Square", "BTS"],
"lat": 3.1421,
"lng": 101.7101,
"category": "mall",
"address": "1 Jalan Imbi, 55100 Kuala Lumpur"
},
{
"id": "mid-valley",
"name": "Mid Valley Megamall",
"aliases": ["Mid Valley Megamall", "Mid Valley", "MV"],
"lat": 3.118,
"lng": 101.6779,
"category": "mall",
"address": "Lingkaran Syed Putra, 59200 Kuala Lumpur"
},
{
"id": "sunway-velocity",
"name": "Sunway Velocity",
"aliases": ["Sunway Velocity", "Velocity", "Sunway Velocity Mall"],
"lat": 3.1355,
"lng": 101.729,
"category": "mall",
"address": "Lingkaran SV, Cheras, 55100 Kuala Lumpur"
},
{
"id": "ioi-city-mall",
"name": "IOI City Mall",
"aliases": ["IOI City Mall", "IOI City"],
"lat": 2.9897,
"lng": 101.7376,
"category": "mall",
"address": "Lebuhraya Sultan Iskandar, 62502 Putrajaya"
},
{
"id": "nu-sentral",
"name": "Nu Sentral",
"aliases": ["Nu Sentral", "KL Sentral Mall"],
"lat": 3.1335,
"lng": 101.6864,
"category": "mall",
"address": "201 Jalan Tun Sambanthan, 50470 Kuala Lumpur"
},
{
"id": "merdeka-118",
"name": "Merdeka 118",
"aliases": ["Merdeka 118", "PNB 118"],
"lat": 3.1408,
"lng": 101.7047,
"category": "landmark",
"address": "Jalan Hang Jebat, 50150 Kuala Lumpur"
},
{
"id": "kl-tower",
"name": "Kuala Lumpur Tower",
"aliases": ["Kuala Lumpur Tower", "KL Tower", "Menara Kuala Lumpur"],
"lat": 3.1528,
"lng": 101.7038,
"category": "landmark",
"address": "2 Jalan Punchak, 50250 Kuala Lumpur"
},
{
"id": "petronas-twin-towers",
"name": "Petronas Twin Towers",
"aliases": ["Petronas Twin Towers", "Petronas Towers", "Twin Towers", "KLCC Towers"],
"lat": 3.1579,
"lng": 101.7116,
"category": "landmark",
"address": "Kuala Lumpur City Centre, 50088 Kuala Lumpur"
},
{
"id": "aquaria-klcc",
"name": "Aquaria KLCC",
"aliases": ["Aquaria KLCC", "Aquaria"],
"lat": 3.1532,
"lng": 101.7104,
"category": "landmark",
"address": "Kuala Lumpur Convention Centre, Jalan Pinang, 50088 Kuala Lumpur"
},
{
"id": "central-market",
"name": "Central Market",
"aliases": ["Central Market", "Pasar Seni", "Pasar Seni Kuala Lumpur"],
"lat": 3.1454,
"lng": 101.6953,
"category": "mall",
"address": "Jalan Hang Kasturi, 50050 Kuala Lumpur"
},
{
"id": "petaling-street",
"name": "Petaling Street",
"aliases": ["Petaling Street", "Chi Cheong Kai", "Jalan Petaling"],
"lat": 3.1436,
"lng": 101.6975,
"category": "landmark",
"address": "Jalan Petaling, 50000 Kuala Lumpur"
},
{
"id": "masjid-jamek",
"name": "Masjid Jamek",
"aliases": ["Masjid Jamek", "Jamek Mosque"],
"lat": 3.1484,
"lng": 101.6953,
"category": "landmark",
"address": "Jalan Tun Perak, 50050 Kuala Lumpur"
},
{
"id": "pudu-raya",
"name": "Pudu Sentral",
"aliases": ["Pudu Sentral", "Pudu Raya", "Puduraya"],
"lat": 3.1381,
"lng": 101.7073,
"category": "station",
"address": "Jalan Pudu, 55100 Kuala Lumpur"
},
{
"id": "bukit-bintang",
"name": "Bukit Bintang",
"aliases": ["Bukit Bintang", "BB Park", "Bukit Bintang KL"],
"lat": 3.1466,
"lng": 101.7106,
"category": "landmark",
"address": "Jalan Bukit Bintang, 55100 Kuala Lumpur"
},
{
"id": "chinatown",
"name": "Chinatown Kuala Lumpur",
"aliases": ["Chinatown Kuala Lumpur", "Chinatown", "KL Chinatown"],
"lat": 3.1436,
"lng": 101.6959,
"category": "landmark",
"address": "Jalan Petaling, 50000 Kuala Lumpur"
},
{
"id": "little-india-brickfields",
"name": "Brickfields",
"aliases": ["Brickfields", "Little India", "Little India Brickfields"],
"lat": 3.1306,
"lng": 101.6869,
"category": "landmark",
"address": "Jalan Tun Sambanthan, 50470 Kuala Lumpur"
},
{
"id": "titiwangsa",
"name": "Taman Tasik Titiwangsa",
"aliases": ["Taman Tasik Titiwangsa", "Titiwangsa", "Lake Titiwangsa"],
"lat": 3.1714,
"lng": 101.7016,
"category": "park",
"address": "Jalan Temerloh, 53200 Kuala Lumpur"
},
{
"id": "lake-gardens",
"name": "Perdana Botanical Garden",
"aliases": ["Perdana Botanical Garden", "Lake Gardens", "Taman Perdana"],
"lat": 3.143,
"lng": 101.6917,
"category": "park",
"address": "Jalan Kebun Bunga, 55100 Kuala Lumpur"
},
{
"id": "national-museum",
"name": "National Museum",
"aliases": ["National Museum", "Muzium Negara"],
"lat": 3.1378,
"lng": 101.687,
"category": "landmark",
"address": "Jalan Damansara, 50566 Kuala Lumpur"
}
]
}
search/src/gazetteer.ts
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/*
* gazetteer.ts — the dataset loader + alias index (D-06, D-07, D-09).
* ------------------------------------------------------------------
* Three hard laws:
*
* LAW 1 — LAZY, MEMOIZED, NEVER AT MODULE SCOPE (RESEARCH Pitfall 8,
* Workers 1 s startup limit / "avoid expensive work in global scope").
* The index is built inside a function on first access and cached in
* module scope — the same lazy-load shape as bot/test/initdata.test.mjs.
*
* LAW 2 — THE LOADER MUST SURVIVE THREE ENVIRONMENTS: the
* wrangler/esbuild bundle (Worker), the Vite bundle (browser), and bare
* Node 24 (the corpus runner). The mechanism is the STATIC JSON IMPORT
* below — Workers have no fs and a runtime retrieval would be a hard
* failure. esbuild and Vite both inline a static JSON import at build
* time; the `with { type: "json" }` attribute is required by Node ESM
* and harmless under both bundlers (loader-env suite is the arbiter).
*
* LAW 3 — NO LOGGING AND NO STORAGE (D-15): the query text is user
* payload. This module contains no logging at all and touches no
* storage surface.
*
* The index maps each entry's NORMALIZED name and each NORMALIZED alias
* to the entry (the D-09 symmetry law — both sides of every comparison
* are canonical). Normalization happens ONCE per dataset load, never
* per query.
*/
import raw from "./data/kl-gazetteer.json" with { type: "json" };
import { normalize } from "./normalize.ts";
import type { GazetteerEntry } from "./types.ts";
/** The committed dataset's envelope (the ODbL notice travels inside it). */
interface GazetteerFile {
_license: string;
_attribution: string;
_notice: string;
version: number;
entries: GazetteerEntry[];
}
let entriesCache: readonly GazetteerEntry[] | null = null;
let byIdCache: Map<string, GazetteerEntry> | null = null;
let indexCache: Map<string, GazetteerEntry[]> | null = null;
/** The parsed dataset — one V8-native JSON parse, memoized. */
function loadEntries(): readonly GazetteerEntry[] {
if (entriesCache === null) {
const file = raw as GazetteerFile;
entriesCache = Object.freeze([...file.entries]);
}
return entriesCache;
}
/** id -> entry, built lazily. */
function loadById(): Map<string, GazetteerEntry> {
if (byIdCache === null) {
const map = new Map<string, GazetteerEntry>();
for (const entry of loadEntries()) {
map.set(entry.id, entry);
}
byIdCache = map;
}
return byIdCache;
}
/** normalized alias -> entry, built lazily and memoized (LAW 1). */
function loadIndex(): Map<string, GazetteerEntry[]> {
if (indexCache === null) {
const index = new Map<string, GazetteerEntry[]>();
for (const entry of loadEntries()) {
const keys = new Set<string>();
const nameKey = normalize(entry.name);
if (nameKey !== "") keys.add(nameKey);
for (const alias of entry.aliases) {
const aliasKey = normalize(alias);
if (aliasKey !== "") keys.add(aliasKey);
}
for (const key of keys) {
const bucket = index.get(key);
if (bucket === undefined) {
index.set(key, [entry]);
} else {
bucket.push(entry);
}
}
}
indexCache = index;
}
return indexCache;
}
/** All curated entries (frozen — the dataset is a build-time constant). */
export function getEntries(): readonly GazetteerEntry[] {
return loadEntries();
}
/** id -> entry; honest null when the id is unknown (never a fabricated entry). */
export function getEntryById(id: string): GazetteerEntry | null {
return loadById().get(id) ?? null;
}
/** The memoized normalized-alias index (normalized key -> entries). */
export function getIndex(): Map<string, GazetteerEntry[]> {
return loadIndex();
}
search/src/index.ts
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/*
* index.ts — the public API surface of @araharah/search (D-03, D-07).
* -------------------------------------------------------------------
* Named exports ONLY (no default export). The package has NO exports /
* main field (the @araharah/theme precedent), so consumers import the
* EXPLICIT SUBPATH WITH EXTENSION —
* import { createGazetteerSource } from "@araharah/search/src/index.ts";
* (both tsconfigs carry allowImportingTsExtensions + bundler resolution;
* esbuild and Vite compile the .ts source; Node 24 type-stripping handles
* the corpus runner's relative form). A bare "@araharah/search" specifier
* resolves to NOTHING — never use it.
*
* The module reads NO environment, NO secrets, and NO network (D-04/D-15):
* the whole search stack is V8-native and dependency-free (D-07).
*/
export type { GazetteerEntry, SearchQuery, SearchHit, SearchSource } from "./types.ts";
export { normalize } from "./normalize.ts";
export { TIER, FUZZY_ADMIT_SIMILARITY } from "./score.ts";
export { damerau } from "./distance.ts";
export { getEntries, getEntryById, getIndex } from "./gazetteer.ts";
export { createGazetteerSource, search } from "./source.ts";
search/src/source.ts
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/*
* source.ts — the D-03 in-Worker SearchSource implementation.
* -----------------------------------------------------------
* Wraps the lazy gazetteer index in the pluggable `SearchSource` seam
* (D-03): an async search() the bot handler awaits, and a synchronous
* byId() the alternates callback handler and the webview deep-link
* reader use without awaiting a network.
*
* THE REFUSAL CONTRACT IS LOAD-BEARING (D-13/D-14): an EMPTY array is a
* legitimate, load-bearing return value meaning "not in the v1 area".
* Admission is TIERED, never a single floor — the EXACT / ALIAS_EXACT /
* PREFIX / TOKEN_SET bands are always admitted; a FUZZY hit is admitted
* only when its similarity reaches FUZZY_ADMIT_SIMILARITY (0.72):
* "KCLC" vs "KLCC" sim 0.75 -> admitted (score 0.45)
* "Penang" vs "Padang" sim 0.667 -> REFUSED (empty array, never a
* fabricated pin)
* scoreCandidate already applies that floor, so a null here means
* "not in the v1 area" and the bot renders the honest refusal copy
* (plan 04-03).
*
* Ranking: score band DESC (the bands are disjoint, so score order IS
* tier order), then entry id ASC — a deterministic tie-break so corpus
* results are reproducible.
*
* No logging, no storage (D-15): the query text never leaves the caller.
*/
import { getEntries, getEntryById } from "./gazetteer.ts";
import { normalize } from "./normalize.ts";
import { FUZZY_ADMIT_SIMILARITY, TIER, scoreCandidate } from "./score.ts";
import type { GazetteerEntry, SearchHit, SearchQuery, SearchSource } from "./types.ts";
/** Entry ids are slugs — byId rejects anything else before it touches the index. */
const ENTRY_ID_PATTERN = /^[a-z0-9-]{1,64}$/;
/** 1 best + 2-4 alternates (D-02). */
const DEFAULT_LIMIT = 5;
/** Synchronous convenience search over the whole gazetteer — the corpus
* runner (plan 04-02) calls this without awaiting a network. */
export function search(text: string, limit?: number): SearchHit[] {
const queryNorm = normalize(text);
if (queryNorm === "") return [];
const cap = limit ?? DEFAULT_LIMIT;
const hits: SearchHit[] = [];
for (const entry of getEntries()) {
const scored = scoreCandidate(queryNorm, [entry.name, ...entry.aliases]);
if (scored === null) continue; // not admitted — "not in the v1 area"
hits.push({ entry, score: scored.score, matchedAlias: scored.matchedAlias });
}
hits.sort((a, b) => {
if (b.score !== a.score) return b.score - a.score; // tier band DESC (disjoint bands)
if (a.entry.id < b.entry.id) return -1; // deterministic id ASC tie-break
if (a.entry.id > b.entry.id) return 1;
return 0;
});
return hits.slice(0, cap);
}
/** The D-03 gazetteer backend: async search() + synchronous byId(). */
export function createGazetteerSource(): SearchSource {
return {
name: "gazetteer",
async search(q: SearchQuery): Promise<SearchHit[]> {
return search(q.text, q.limit);
},
byId(id: string): GazetteerEntry | null {
if (!ENTRY_ID_PATTERN.test(id)) return null;
return getEntryById(id);
},
};
}
/** Re-exported so the tiered admission rule reads as one story: the
* floor lives in score.ts; this module applies it per D-13. */
export { FUZZY_ADMIT_SIMILARITY };