fix(osm): stop using public Overpass by default (#648) (#742)

Traffic roads come from OpenFreeMap vector tiles, or TomTom flow tiles with a
key (Hybrid by default). Military areas use OpenFreeMap polygons with a bundled
worldwide name index; wide views show named points. ALPR reads an hourly
OpenStreetMap extract. Cockpit place context and country, state and US county
outlines use bundled Natural Earth and US Census data. Overpass is used only
when an operator configures their own endpoint.

Also: camera arrivals no longer land below ground, keyless terrain retries on
429, bounded relation geometry for configured Overpass, one shared
OpenStreetMap credit, and separate tile and API transports for embedders.

Co-authored-by: theGaryLarson <[email protected]>
Co-authored-by: Milan Khanal <[email protected]>

src/layers/installations/controls.js

@@ -1,6 +1,10 @@
 import * as Cesium from 'cesium';
 import { installationFeedback } from '../../data/installationFeedback.js';
-import { LAYER_ID, DISTANCE_PREFILTER_MARGIN_M } from './policy.js';
+import {
+  LAYER_ID,
+  DISTANCE_PREFILTER_MARGIN_M,
+  ANCHOR_REFRESH_M,
+} from './policy.js';
 
 export function createControls({ state: layerState, services, parts, source }) {
   const methods = {
@@ -16,12 +20,71 @@ export function createControls({ state: layerState, services, parts, source }) {
 
     statsRefreshInterval: 1000,
 
+    visitNamedMarkers(visitor) {
+      parts.namedMarkers.visit(visitor);
+    },
+
     /** Request a one-shot Google Maps Places search around the current map view. */
     searchNearby() {
       layerState.googleSearchRequested = true;
       return parts.ingestion.loadInstallations();
     },
 
+    /**
+     * Load sites around a Contacts subject instead of the camera viewport.
+     *
+     * A follow or Cockpit camera moves every frame, so `moveEnd` never fires and
+     * its view rectangle often reaches the horizon; a subject window is the
+     * only area that answers "what is near this contact". The window moves
+     * only after the subject travels ANCHOR_REFRESH_M, and cached tiles make
+     * that cheap. Passing null returns the layer to viewport loading.
+     * @param {Cesium.Cartesian3|{latitude:number, longitude:number}|null} position
+     *   Subject position.
+     * @returns {boolean} Whether a new load was scheduled.
+     */
+    setContextAnchor(position) {
+      let next = null;
+      if (position) {
+        if (
+          Number.isFinite(position.latitude) &&
+          Number.isFinite(position.longitude)
+        )
+          next = { latitude: position.latitude, longitude: position.longitude };
+        else {
+          const carto = Cesium.Cartographic.fromCartesian(position);
+          if (carto)
+            next = {
+              latitude: Cesium.Math.toDegrees(carto.latitude),
+              longitude: Cesium.Math.toDegrees(carto.longitude),
+            };
+        }
+      }
+      // Keep the live centre even when the coarse fetch anchor has not moved.
+      layerState.contextPosition = next
+        ? Cesium.Cartesian3.fromDegrees(next.longitude, next.latitude)
+        : null;
+      const previous = layerState.contextAnchor;
+      if (!next) {
+        if (!previous) return false;
+        layerState.contextAnchor = null;
+        parts.viewport.scheduleLoad();
+        return true;
+      }
+      if (
+        previous &&
+        parts.model.approximateSurfaceDistanceM(
+          Cesium.Math.toRadians(previous.latitude),
+          Cesium.Math.toRadians(previous.longitude),
+          next.latitude,
+          next.longitude,
+        ) < ANCHOR_REFRESH_M
+      )
+        return false;
+      layerState.contextAnchor = next;
+      parts.viewport.scheduleLoad();
+      return true;
+    },
+
     getNearby(center, rangeM, maxCount = 50) {
       if (!center) return [];
       const range = Number.isFinite(rangeM) ? rangeM : Infinity;
@@ -100,8 +163,30 @@ export function createControls({ state: layerState, services, parts, source }) {
     },
 
     getStats() {
+      const namedMarkers = parts.namedMarkers?.stats();
+      const subjectWindow =
+        layerState.coverage?.kind === 'subject' &&
+        layerState.contextPosition &&
+        Number.isFinite(layerState.coverage.radiusM);
+      const mappedCount = subjectWindow
+        ? methods.getNearby(
+            layerState.contextPosition,
+            layerState.coverage.radiusM,
+            layerState.records.length || 1,
+          ).length
+        : layerState.wide && namedMarkers
+          ? namedMarkers.pointsOnScreen
+          : layerState.records.filter(
+              (record) => record.kind === 'installation',
+            ).length;
       return {
-        count: layerState.records.length,
+        count:
+          subjectWindow || layerState.wide
+            ? mappedCount
+            : layerState.records.length,
+        namedInView: layerState.namedInView || 0,
+        wide: Boolean(layerState.wide),
+        ...namedMarkers,
         lastUpdate: layerState.lastUpdate,
         stale: layerState.stale,
         saturated: layerState.saturated,
@@ -113,11 +198,17 @@ export function createControls({ state: layerState, services, parts, source }) {
         failureReason: layerState.failureReason,
         statusMessage: installationFeedback({
           ...layerState,
+          count: layerState.lastUpdate ? mappedCount : undefined,
           retrying: layerState.loading && Boolean(layerState.failureReason),
         }),
         loadingLabel: layerState.loading
           ? 'loading mapped installation context'
           : '',
+        coverage: layerState.coverage,
+        coverageLabel:
+          layerState.coverage?.kind === 'subject'
+            ? `WITHIN ${Math.round(layerState.coverage.radiusM / 1000)} KM`
+            : 'CURRENT VIEWPORT ONLY',
       };
     },
   };