Refactor area preview orchestration

scripts/test-preview-assets.js

@@ -0,0 +1,85 @@
+#!/usr/bin/env node
+"use strict";
+
+const assert = require("assert");
+const fs = require("fs");
+const os = require("os");
+const path = require("path");
+const { cesiumPreviewHtml } = require("./lib/area-preview");
+const { makeVehicleGltf } = require("./lib/vehicle-model");
+const { buildVehicleRoute } = require("./lib/vehicle-route");
+
+const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "preview-assets-"));
+const osmPath = path.join(tempDir, "fixture.osm");
+
+fs.writeFileSync(osmPath, `<?xml version="1.0"?>
+<osm version="0.6">
+  <bounds minlon="120" minlat="30" maxlon="120.01" maxlat="30.01"/>
+  <node id="1" lon="120.001" lat="30.001"/>
+  <node id="2" lon="120.003" lat="30.001"/>
+  <node id="3" lon="120.006" lat="30.001"/>
+  <node id="4" lon="120.001" lat="30.003"/>
+  <node id="5" lon="120.001" lat="30.007"/>
+  <way id="major-road">
+    <nd ref="1"/><nd ref="2"/><nd ref="3"/>
+    <tag k="highway" v="primary"/><tag k="name" v="Major Road"/><tag k="oneway" v="yes"/>
+  </way>
+  <way id="minor-road">
+    <nd ref="4"/><nd ref="5"/><tag k="highway" v="residential"/>
+  </way>
+  <way id="footpath">
+    <nd ref="1"/><nd ref="5"/><tag k="highway" v="footway"/>
+  </way>
+</osm>
+`);
+
+const route = buildVehicleRoute(osmPath);
+assert.equal(route.source, osmPath);
+assert.deepEqual(route.bounds, {
+  minLon: 120,
+  minLat: 30,
+  maxLon: 120.01,
+  maxLat: 30.01,
+});
+assert.equal(route.speedMetersPerSecond, 8);
+assert.equal(route.loop, true);
+assert.equal(route.segments.length, 2);
+assert.deepEqual(route.segments.map((segment) => segment.id), ["major-road", "minor-road"]);
+assert.equal(route.segments[0].name, "Major Road");
+assert.equal(route.segments[0].oneWay, "yes");
+assert.equal(route.segments[0].laneOffsetMeters, 1.3);
+assert.notDeepEqual(route.segments[0].coordinates, route.segments[0].centerlineCoordinates);
+assert.ok(route.segments[0].lengthMeters > route.segments[1].lengthMeters);
+
+const vehicle = makeVehicleGltf();
+assert.equal(vehicle.asset.version, "2.0");
+assert.equal(vehicle.asset.generator, "osm-asset-pipeline vehicle preview");
+assert.equal(vehicle.scene, 0);
+assert.equal(vehicle.meshes.length, vehicle.nodes.length);
+assert.equal(vehicle.scenes[0].nodes.length, vehicle.nodes.length);
+assert.deepEqual(
+  vehicle.materials.map((material) => material.name),
+  ["paint red", "dark roof", "glass", "tire", "wheel hub", "headlight", "tail light"],
+);
+assert.ok(vehicle.meshes.some((mesh) => mesh.name === "body"));
+assert.ok(vehicle.meshes.some((mesh) => mesh.name === "wheel_-1.55_-1.02"));
+assert.match(vehicle.buffers[0].uri, /^data:application\/octet-stream;base64,/);
+assert.equal(
+  Buffer.from(vehicle.buffers[0].uri.split(",")[1], "base64").length,
+  vehicle.buffers[0].byteLength,
+);
+
+const html = cesiumPreviewHtml(
+  "scene<&>.glb",
+  "scene.json",
+  "route.json",
+  "vehicle.gltf",
+  "north<&>\u2028valley",
+);
+assert.match(html, /<title>north&lt;&amp;&gt;\u2028valley Cesium Preview<\/title>/);
+assert.match(html, /Loading scene&lt;&amp;&gt;\.glb/);
+assert.match(html, /"areaId":"north\\u003c\\u0026\\u003e\\u2028valley"/);
+assert.match(html, /"glbName":"scene\\u003c\\u0026\\u003e\.glb"/);
+
+fs.rmSync(tempDir, { recursive: true, force: true });
+console.log("Preview asset tests passed.");