Merge branch 'main' into feat/lithuania-cctv

This commit is contained in:
Sameh Khamis committed 2026-10-15 14:21:07 -07:00
commit b4d852587a
1150 files changed
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@@ -3,7 +3,7 @@ import path from 'node:path';
import { DEFAULT_CCTV_SOURCE_FILE, CCTV_SOURCE_CACHE_MS } from './constants.js';
import { allocateSourceCap, resolveCatalogCap } from './cap.js';
import { loadGroundHeights, joinGroundHeights } from './groundHeights.js';
import { normalizeSourceItem } from './normalize.js';
import { cameraRegion, normalizeSourceItem } from './normalize.js';
import { loadLithuaniaSources } from './lithuania.js';
import {
loadAustinSourcesFromOpenData,
@@ -18,24 +18,25 @@ import {
loadWarendorfSourcesFromCatalog,
loadNswSourcesFromOpenData,
loadCalgarySourcesFromOpenData,
loadDelDOTSourcesFromOpenData,
loadVegvesenSourcesFromOpenData,
loadNycSourcesFromOpenData,
} from './sources.js';
/** Env kill switch: unset or anything but "0" means enabled. */
const envEnabled = (name) => String(process.env[name] || '1').trim() !== '0';
/** Env opt-in: only "1" enables. For packs whose feed access needs an
* operator agreement, so an unset flag never reaches the upstream. */
const envOptIn = (name) => String(process.env[name] || '').trim() === '1';
/**
* Live open-data packs, in merge order. Adding a region is one entry here
* plus its loader in sources.js; the catalog cap is shared across entries
* round-robin (cap.js), so a new pack never silently evicts an older one.
* Each pack fails independently (allSettled) and is gated by its own env
* kill switch.
* kill switch, or by an opt-in flag where access needs an agreement.
*/
const LIVE_PACKS = [
{
name: 'lithuania',
enabled: () => envEnabled('CCTV_LITHUANIA_ENABLED'),
load: loadLithuaniaSources,
},
{ name: 'austin', enabled: () => true, load: loadAustinSourcesFromOpenData },
{
name: 'caltrans',
@@ -92,6 +93,28 @@ const LIVE_PACKS = [
enabled: () => envEnabled('CCTV_CALGARY_ENABLED'),
load: loadCalgarySourcesFromOpenData,
},
{
name: 'deldot',
enabled: () => envEnabled('CCTV_DELDOT_ENABLED'),
load: loadDelDOTSourcesFromOpenData,
},
{
name: 'vegvesen',
enabled: () => envEnabled('CCTV_VEGVESEN_ENABLED'),
load: loadVegvesenSourcesFromOpenData,
},
{
// NYC DOT requires a data-sharing agreement for this feed, so the pack is
// off unless the operator opts in (see DATA_SOURCES.md).
name: 'nyc',
enabled: () => envOptIn('CCTV_NYC_ENABLED'),
load: loadNycSourcesFromOpenData,
},
{
name: 'lithuania',
enabled: () => envEnabled('CCTV_LITHUANIA_ENABLED'),
load: loadLithuaniaSources,
},
];
/**
* Load CCTV sources from a local JSON file (CCTV_SOURCES_FILE env or default).
@@ -143,6 +166,9 @@ export function createCctvCatalog({ sourceRoot = process.cwd() } = {}) {
/** @type {Promise<Array<object>>|null} In-flight refresh, shared by concurrent
* callers so a post-TTL burst launches ONE refetch, not one per request. */
let _cctvSourceInflight = null;
/** @type {Array<{pack: string, available: number, served: number}>} Packs
* that serve fewer cameras than they offer. */
let _cctvTrimmedPacks = [];
/**
* Assemble and cache the merged CCTV source list.
@@ -209,8 +235,12 @@ export function createCctvCatalog({ sourceRoot = process.cwd() } = {}) {
name,
sources: items
.filter((item) => item && typeof item === 'object')
.map((item) => normalizeSourceItem(item))
.map((item) => ({ ...normalizeSourceItem(item), pack: name }))
.filter((item) => item.id),
available: Number.isFinite(items.available)
? items.available
: items.length,
region: items.region ?? null,
});
const packs = [
...LIVE_PACKS.map((pack, index) =>
@@ -234,6 +264,16 @@ export function createCctvCatalog({ sourceRoot = process.cwd() } = {}) {
loadGroundHeights(sourceRoot),
);
const trimmed = allocation.packs.filter((pack) => pack.kept < pack.offered);
// Each pack's own nearest-first cap and the shared catalog cap both trim.
const trimmedPacks = packs
.map((pack, index) => ({
pack: pack.name,
available: Math.max(pack.available, allocation.packs[index].offered),
served: allocation.packs[index].kept,
// Where the pack's cameras are, including those not served.
region: pack.region ?? cameraRegion(pack.sources),
}))
.filter((pack) => pack.served < pack.available);
if (trimmed.length) {
const detail = trimmed
.map((pack) => `${pack.name} ${pack.kept}/${pack.offered}`)
@@ -244,6 +284,7 @@ export function createCctvCatalog({ sourceRoot = process.cwd() } = {}) {
}
if (capped.length > 0 || _cctvSourceCache.length === 0) {
_cctvSourceCache = capped;
_cctvTrimmedPacks = trimmedPacks;
} else {
// Every source came back empty (all live packs timed out / upstream outage)
// but a good catalog is already cached — serve it stale rather than blanking
@@ -257,5 +298,7 @@ export function createCctvCatalog({ sourceRoot = process.cwd() } = {}) {
return _cctvSourceCache;
}
/** Packs serving fewer cameras than they offer, as of the last refresh. */
getCctvSources.trimmedPacks = () => _cctvTrimmedPacks;
return getCctvSources;
}