1 files changed, 101 insertions, 0 deletions
diff --git a/src/queries/sql/events/getEventStats.ts b/src/queries/sql/events/getEventStats.ts
new file mode 100644
index 0000000..81d12a0
--- /dev/null
+++ b/src/queries/sql/events/getEventStats.ts
@@ -0,0 +1,101 @@
+import clickhouse from '@/lib/clickhouse';
+import { EVENT_TYPE } from '@/lib/constants';
+import { CLICKHOUSE, PRISMA, runQuery } from '@/lib/db';
+import prisma from '@/lib/prisma';
+import type { QueryFilters } from '@/lib/types';
+
+const FUNCTION_NAME = 'getEventStats';
+
+interface WebsiteEventMetric {
+  x: string;
+  t: string;
+  y: number;
+}
+
+export async function getEventStats(
+  ...args: [websiteId: string, filters: QueryFilters]
+): Promise<WebsiteEventMetric[]> {
+  return runQuery({
+    [PRISMA]: () => relationalQuery(...args),
+    [CLICKHOUSE]: () => clickhouseQuery(...args),
+  });
+}
+
+async function relationalQuery(websiteId: string, filters: QueryFilters) {
+  const { timezone = 'utc', unit = 'day' } = filters;
+  const { rawQuery, getDateSQL, parseFilters } = prisma;
+  const { filterQuery, cohortQuery, joinSessionQuery, queryParams } = parseFilters({
+    ...filters,
+    websiteId,
+    eventType: EVENT_TYPE.customEvent,
+  });
+
+  return rawQuery(
+    `
+    select
+      event_name x,
+      ${getDateSQL('website_event.created_at', unit, timezone)} t,
+      count(*) y
+    from website_event
+    ${cohortQuery}
+    ${joinSessionQuery}
+    where website_event.website_id = {{websiteId::uuid}}
+      and website_event.created_at between {{startDate}} and {{endDate}}
+      ${filterQuery}
+    group by 1, 2
+    order by 2
+    `,
+    queryParams,
+    FUNCTION_NAME,
+  );
+}
+
+async function clickhouseQuery(
+  websiteId: string,
+  filters: QueryFilters,
+): Promise<{ x: string; t: string; y: number }[]> {
+  const { timezone = 'UTC', unit = 'day' } = filters;
+  const { rawQuery, getDateSQL, parseFilters } = clickhouse;
+  const { filterQuery, cohortQuery, queryParams } = parseFilters({
+    ...filters,
+    websiteId,
+    eventType: EVENT_TYPE.customEvent,
+  });
+
+  let sql = '';
+
+  if (filterQuery || cohortQuery) {
+    sql = `
+    select
+      event_name x,
+      ${getDateSQL('created_at', unit, timezone)} t,
+      count(*) y
+    from website_event
+    ${cohortQuery}
+    where website_id = {websiteId:UUID}
+      and created_at between {startDate:DateTime64} and {endDate:DateTime64}
+      ${filterQuery}
+    group by x, t
+    order by t
+    `;
+  } else {
+    sql = `
+    select
+      event_name x,
+      ${getDateSQL('created_at', unit, timezone)} t,
+      count(*) y
+    from (
+      select arrayJoin(event_name) as event_name,
+        created_at
+      from website_event_stats_hourly website_event
+      where website_id = {websiteId:UUID}
+        and created_at between {startDate:DateTime64} and {endDate:DateTime64}
+        and event_type = {eventType:UInt32}
+    ) as g
+    group by x, t
+    order by t
+    `;
+  }
+
+  return rawQuery(sql, queryParams, FUNCTION_NAME);
+}