add search, chat, and feedback analytics with dashboard

app/api/analytics/search/route.ts

@@ -0,0 +1,33 @@
+import { parseId, recordSearch } from '@/lib/analytics/api';
+import { json, readFeedback, storageError } from '@/lib/analytics/http';
+
+function path(value: unknown, max: number) {
+  return typeof value === 'string' && value.startsWith('/') ? value.slice(0, max) : null;
+}
+
+/** `{ id, query, results, clickedUrl?, page?, visitorId }` from the search dialog */
+export async function POST(req: Request) {
+  const body = await readFeedback(req);
+  if (body instanceof Response) return body;
+
+  const id = parseId(body.id);
+  const query = typeof body.query === 'string' ? body.query.replace(/\s+/g, ' ').trim().slice(0, 256) : '';
+  const results = Number(body.results);
+  if (!id || !query || !Number.isInteger(results) || results < 0) {
+    return json(400, { error: 'Invalid search event.' });
+  }
+
+  try {
+    await recordSearch({
+      id,
+      visitorId: parseId(body.visitorId),
+      query,
+      results: Math.min(results, 1000),
+      clickedUrl: path(body.clickedUrl, 512),
+      page: path(body.page, 2048),
+    });
+  } catch (e) {
+    return storageError('search', e);
+  }
+  return json(200, { ok: true });
+}