Separate route and recent imagery acquisition from application assembly

src/data/directions.js

@@ -1,3 +1,4 @@
+import { createDirectionsSource } from '../layers/directions/source.js';
 /**
  * @module directions
  * @description Service bundle for the Directions layer.
@@ -37,8 +38,10 @@ export const directionsServices = Object.freeze({
 });
 
 /** Construct one Directions layer over the application scene owners. */
-export function createApplicationDirectionsLayer() {
-  return createDirectionsLayer({ services: directionsServices });
+export function createApplicationDirectionsLayer({
+  source = createDirectionsSource(),
+} = {}) {
+  return createDirectionsLayer({ services: directionsServices, source });
 }
 
 export {

src/data/sharedOsmDisplays.test.mjs

@@ -7,6 +7,7 @@ import { createBhoteKoshiLocatorLayer } from './bhoteKoshiLocator.js';
 import { createWorldAnnotationRenderer } from '../annotations/worldAnnotationRenderer.js';
 import * as annotations from '../annotations/worldAnnotationRenderer.js';
 import { createDirectionsLayer } from '../layers/directions/index.js';
+import { createDirectionsSource } from '../layers/directions/source.js';
 import { createLifecycle as createCctvLifecycle } from '../layers/cctv/lifecycle.js';
 import * as input from './inputOwnership.js';
 import { createOverpassAlprSource } from '../layers/alpr/source.js';
@@ -64,7 +65,7 @@ test('voice route geometry introduces the shared OSM credit', (t) => {
 test('Directions introduces the shared OSM credit when the requested route draws', async (t) => {
   const v = viewer(t);
   t.mock.method(globalThis, 'fetch', async () => Response.json({ ok: true, geometry: [[0, 0], [0.01, 0.01]], steps: [] }));
-  const layer = createDirectionsLayer({ services: {
+  const layer = createDirectionsLayer({ source: createDirectionsSource(), services: {
     credits: { showOsmCredit, hideOsmCredit }, annotations, input, scenePick: {}, camera: {},
     overlays: { setOverlayEntries: noop, setOverlaySourceVisible: noop, clearOverlaySource: noop },
     render: { governorRequestRender: noop, holdContinuousRender: noop, releaseContinuousRender: noop },