Add MetricsBar to Events page. Closes #3830

src/queries/sql/events/getWebsiteEventStats.ts

@@ -0,0 +1,97 @@
+import clickhouse from '@/lib/clickhouse';
+import { CLICKHOUSE, PRISMA, runQuery } from '@/lib/db';
+import prisma from '@/lib/prisma';
+import type { QueryFilters } from '@/lib/types';
+
+const FUNCTION_NAME = 'getWebsiteEventStats';
+
+export interface WebsiteEventStatsData {
+  events: number;
+  visitors: number;
+  visits: number;
+  uniqueEvents: number;
+}
+
+export async function getWebsiteEventStats(
+  ...args: [websiteId: string, filters: QueryFilters]
+): Promise<WebsiteEventStatsData[]> {
+  return runQuery({
+    [PRISMA]: () => relationalQuery(...args),
+    [CLICKHOUSE]: () => clickhouseQuery(...args),
+  });
+}
+
+async function relationalQuery(
+  websiteId: string,
+  filters: QueryFilters,
+): Promise<WebsiteEventStatsData[]> {
+  const { parseFilters, rawQuery } = prisma;
+  const { filterQuery, joinSessionQuery, cohortQuery, queryParams } = parseFilters({
+    ...filters,
+    websiteId,
+  });
+
+  return rawQuery(
+    `
+    select
+      cast(coalesce(sum(t.c), 0) as bigint) as "events",
+      count(distinct t.session_id) as "visitors",
+      count(distinct t.visit_id) as "visits",
+      count(distinct t.event_name) as "uniqueEvents"
+    from (
+      select
+        website_event.session_id,
+        website_event.visit_id,
+        website_event.event_name,
+        count(*) as "c"
+      from website_event
+      ${cohortQuery}
+      ${joinSessionQuery}  
+      where website_event.website_id = {{websiteId::uuid}}
+        and website_event.created_at between {{startDate}} and {{endDate}}
+        and website_event.event_type = 2
+        ${filterQuery}
+      group by 1, 2, 3
+    ) as t
+    `,
+    queryParams,
+    FUNCTION_NAME,
+  ).then(result => result?.[0]);
+}
+
+async function clickhouseQuery(
+  websiteId: string,
+  filters: QueryFilters,
+): Promise<WebsiteEventStatsData[]> {
+  const { rawQuery, parseFilters } = clickhouse;
+  const { filterQuery, cohortQuery, queryParams } = parseFilters({
+    ...filters,
+    websiteId,
+  });
+
+  return rawQuery(
+    `
+    select
+      sum(t.c) as "events",
+      uniq(t.session_id) as "visitors",
+      uniq(t.visit_id) as "visits",
+      count(distinct t.event_name) as "uniqueEvents"
+    from (
+      select
+        session_id,
+        visit_id,
+        event_name,
+        count(*) c
+      from website_event
+      ${cohortQuery}
+      where website_id = {websiteId:UUID}
+        and created_at between {startDate:DateTime64} and {endDate:DateTime64}
+        and event_type = 2
+        ${filterQuery}
+      group by session_id, visit_id, event_name
+    ) as t;
+    `,
+    queryParams,
+    FUNCTION_NAME,
+  ).then(result => result?.[0]);
+}