Merge branch 'main' into feat/king-county-camera-pack

server/providers/cctv/constants.js

@@ -327,6 +327,40 @@ export const KING_COUNTY_ANCHORS = [{ lat: 47.4829, lon: -122.2171 }];
  * and well under 100 KB; this only exists so an upstream that streams an
  * unbounded body cannot be buffered without limit. */
 export const KING_COUNTY_MAX_CATALOG_BYTES = 1024 * 1024;
+/**
+ * City of Toronto RESCU traffic cameras: the municipal network the province's
+ * 511 pack does not cover — downtown arterials plus the Gardiner, DVP, Allen
+ * and Lake Shore. One keyless list for the whole city (~336 cameras), from the
+ * City's open data portal. It is fetched on every catalog refresh, but the
+ * upstream file is not updated often and may lag the live camera network.
+ *
+ * The list is served as JSONP (`jsonTMCEarthCamerasCallback({...})`); the
+ * portal publishes the same data as .xml and .csv beside it.
+ */
+export const TORONTO_RESCU_LIST_URL =
+  'https://opendata.toronto.ca/transportation/tmc/rescucameraimages/Data/tmcearthcameras.json';
+/**
+ * The only origin Toronto camera frames may come from. The list carries no URL
+ * field: frame URLs are BUILT from this origin and a strictly-digits camera
+ * number (`loc####.jpg`, the convention the dataset documents), so no upstream
+ * field can steer the frame proxy off-host.
+ */
+export const TORONTO_RESCU_IMAGE_ORIGIN =
+  'https://opendata.toronto.ca/transportation/tmc/rescucameraimages/CameraImages/';
+/** The whole city fits under this; the cap exists to stay tunable, not to trim. */
+export const DEFAULT_TORONTO_MAX_SOURCES = 336;
+/** Yonge / Queen: the prioritization anchor. */
+export const TORONTO_DOWNTOWN = { lat: 43.6532, lon: -79.3832 };
+/** The city climbs from 76 m at the lake to 209 m at Steeles, so no single
+ * number fits: this is the mean across the 336 camera sites. The ground-height
+ * sidecar has no Toronto entries yet, so this prior seeds placement; a camera
+ * that gains a sidecar entry uses it instead, and the client's ground snap
+ * corrects the prior wherever 3D tiles are loaded. */
+export const TORONTO_GROUND_ELEVATION_M = 116;
+/** Hard ceiling on the RESCU list body. The whole city is ~336 rows and under
+ * 60 KB; this only exists so an upstream that streams an unbounded body cannot
+ * be buffered without limit. */
+export const TORONTO_MAX_CATALOG_BYTES = 4 * 1024 * 1024;
 
 /** Camera CATALOGS change rarely; 15 min keeps multi-megabyte upstream list refetches (Austin rows.json + 4 Caltrans districts + TfL + Ontario 511) infrequent. Frames are fetched per-request and are unaffected. */
 export const CCTV_SOURCE_CACHE_MS = 15 * 60 * 1000;