implement sessions metric expanded queries

src/app/api/websites/[websiteId]/metrics/expanded/route.ts

@@ -0,0 +1,87 @@
+import { canViewWebsite } from '@/lib/auth';
+import { EVENT_COLUMNS, SESSION_COLUMNS } from '@/lib/constants';
+import { getQueryFilters, parseRequest } from '@/lib/request';
+import { badRequest, json, unauthorized } from '@/lib/response';
+import { dateRangeParams, filterParams, searchParams } from '@/lib/schema';
+import {
+  getChannelMetrics,
+  getEventMetrics,
+  getPageviewMetrics,
+  getSessionExpandedMetrics,
+} from '@/queries';
+import { z } from 'zod';
+
+export async function GET(
+  request: Request,
+  { params }: { params: Promise<{ websiteId: string }> },
+) {
+  const schema = z.object({
+    type: z.string(),
+    limit: z.coerce.number().optional(),
+    offset: z.coerce.number().optional(),
+    ...dateRangeParams,
+    ...searchParams,
+    ...filterParams,
+  });
+
+  const { auth, query, error } = await parseRequest(request, schema);
+
+  if (error) {
+    return error();
+  }
+
+  const { websiteId } = await params;
+
+  if (!(await canViewWebsite(auth, websiteId))) {
+    return unauthorized();
+  }
+
+  const { type, limit, offset, search } = query;
+  const filters = await getQueryFilters(query, websiteId);
+
+  if (search) {
+    filters[type] = `c.${search}`;
+  }
+
+  if (SESSION_COLUMNS.includes(type)) {
+    const data = await getSessionExpandedMetrics(websiteId, { type, limit, offset }, filters);
+
+    // if (type === 'language') {
+    //   const combined = {};
+
+    //   for (const { x, y } of data) {
+    //     const key = String(x).toLowerCase().split('-')[0];
+
+    //     if (combined[key] === undefined) {
+    //       combined[key] = { x: key, y };
+    //     } else {
+    //       combined[key].y += y;
+    //     }
+    //   }
+
+    //   return json(Object.values(combined));
+    // }
+
+    return json(data);
+  }
+
+  if (EVENT_COLUMNS.includes(type)) {
+    let data;
+
+    if (type === 'event') {
+      data = await getEventMetrics(websiteId, { type, limit, offset }, filters);
+    } else {
+      data = await getPageviewMetrics(websiteId, { type, limit, offset }, filters);
+    }
+
+    return json(data);
+  }
+
+  if (type === 'channel') {
+    const data = await getChannelMetrics(websiteId, filters);
+
+    return json(data);
+  }
+
+  return badRequest();
+}