feat: (broken) implement route map and address autocomplete widgets with associated infrastructure testing scripts

em2rp/scratch/test_js_api.js

@@ -0,0 +1,79 @@
+const fs = require('fs');
+const https = require('https');
+
+async function main() {
+    const env = fs.readFileSync('functions/.env', 'utf8');
+    const apiKey = env.split('\n').find(l => l.startsWith('API_MAPS=')).split('=')[1].replace(/"/g, '').trim();
+
+    const data = JSON.stringify({
+        "travelMode": "DRIVE",
+        "routingPreference": "TRAFFIC_AWARE",
+        "origin": { "address": "401 route du camping, 69850 Saint Martin en haut" },
+        "destination": { "address": "Salle des fêtes, Orliénas" }
+    });
+
+    const options = {
+        hostname: 'routes.googleapis.com',
+        path: '/directions/v2:computeRoutes',
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json',
+            'X-Goog-Api-Key': apiKey,
+            'X-Goog-FieldMask': 'routes.distanceMeters,routes.duration,routes.polyline.encodedPolyline',
+            'Content-Length': data.length
+        }
+    };
+
+    const req = https.request(options, res => {
+        let body = '';
+        res.on('data', d => body += d);
+        res.on('end', () => {
+            const json = JSON.parse(body);
+            const encoded = json.routes[0].polyline.encodedPolyline;
+            console.log("Encoded string length:", encoded.length);
+            
+            // decode
+            let index = 0, len = encoded.length;
+            let lat = 0, lng = 0;
+            const poly = [];
+            while (index < len) {
+                let b, shift = 0, result = 0;
+                do {
+                    b = encoded.charCodeAt(index++) - 63;
+                    result |= (b & 0x1f) << shift;
+                    shift += 5;
+                } while (b >= 0x20);
+                let dlat = ((result & 1) !== 0 ? ~(result >> 1) : (result >> 1));
+                lat += dlat;
+
+                shift = 0;
+                result = 0;
+                do {
+                    b = encoded.charCodeAt(index++) - 63;
+                    result |= (b & 0x1f) << shift;
+                    shift += 5;
+                } while (b >= 0x20);
+                let dlng = ((result & 1) !== 0 ? ~(result >> 1) : (result >> 1));
+                lng += dlng;
+
+                poly.push([lat / 1e5, lng / 1e5]);
+            }
+            
+            console.log("Decoded points:", poly.length);
+            for(let i=0; i<5; i++) console.log(poly[i]);
+            
+            // Search for exploding coordinates
+            for(let i=0; i<poly.length; i++) {
+                if (Math.abs(poly[i][0]) > 90 || Math.abs(poly[i][1]) > 180) {
+                    console.log("EXPLODED AT INDEX", i, "POINT:", poly[i]);
+                    break;
+                }
+            }
+        });
+    });
+
+    req.write(data);
+    req.end();
+}
+
+main();