1 files changed, 191 insertions, 0 deletions
diff --git a/src/queries/sql/pageviews/getPageviewMetrics.ts b/src/queries/sql/pageviews/getPageviewMetrics.ts
new file mode 100644
index 0000000..9d4f627
--- /dev/null
+++ b/src/queries/sql/pageviews/getPageviewMetrics.ts
@@ -0,0 +1,191 @@
+import clickhouse from '@/lib/clickhouse';
+import { EVENT_COLUMNS, FILTER_COLUMNS, SESSION_COLUMNS } from '@/lib/constants';
+import { CLICKHOUSE, PRISMA, runQuery } from '@/lib/db';
+import prisma from '@/lib/prisma';
+import type { QueryFilters } from '@/lib/types';
+
+const FUNCTION_NAME = 'getPageviewMetrics';
+
+export interface PageviewMetricsParameters {
+  type: string;
+  limit?: number | string;
+  offset?: number | string;
+}
+
+export interface PageviewMetricsData {
+  x: string;
+  y: number;
+}
+
+export async function getPageviewMetrics(
+  ...args: [websiteId: string, parameters: PageviewMetricsParameters, filters: QueryFilters]
+) {
+  return runQuery({
+    [PRISMA]: () => relationalQuery(...args),
+    [CLICKHOUSE]: () => clickhouseQuery(...args),
+  });
+}
+
+async function relationalQuery(
+  websiteId: string,
+  parameters: PageviewMetricsParameters,
+  filters: QueryFilters,
+): Promise<PageviewMetricsData[]> {
+  const { type, limit = 500, offset = 0 } = parameters;
+  let column = FILTER_COLUMNS[type] || type;
+  const { rawQuery, parseFilters } = prisma;
+  const { filterQuery, joinSessionQuery, cohortQuery, queryParams } = parseFilters(
+    {
+      ...filters,
+      websiteId,
+    },
+    { joinSession: SESSION_COLUMNS.includes(type) },
+  );
+
+  let entryExitQuery = '';
+  let excludeDomain = '';
+
+  if (column === 'referrer_domain') {
+    excludeDomain = `and website_event.referrer_domain != website_event.hostname
+      and website_event.referrer_domain != ''`;
+  }
+
+  if (type === 'entry' || type === 'exit') {
+    const order = type === 'entry' ? 'asc' : 'desc';
+    column = `x.${column}`;
+
+    entryExitQuery = `
+      join (
+        select distinct on (visit_id)
+          visit_id,
+          url_path
+        from website_event
+        where website_event.website_id = {{websiteId::uuid}}
+          and website_event.created_at between {{startDate}} and {{endDate}}
+          and website_event.event_type != 2
+        order by visit_id, created_at ${order}
+      ) x
+      on x.visit_id = website_event.visit_id
+    `;
+  }
+
+  return rawQuery(
+    `
+    select ${column} x,
+      count(distinct website_event.session_id) as y
+    from website_event
+    ${cohortQuery}
+    ${joinSessionQuery}
+    ${entryExitQuery}
+    where website_event.website_id = {{websiteId::uuid}}
+      and website_event.created_at between {{startDate}} and {{endDate}}
+      and website_event.event_type != 2
+      ${excludeDomain}
+      ${filterQuery}
+    group by 1
+    order by 2 desc
+    limit ${limit}
+    offset ${offset}
+    `,
+    { ...queryParams, ...parameters },
+    FUNCTION_NAME,
+  );
+}
+
+async function clickhouseQuery(
+  websiteId: string,
+  parameters: PageviewMetricsParameters,
+  filters: QueryFilters,
+): Promise<{ x: string; y: number }[]> {
+  const { type, limit = 500, offset = 0 } = parameters;
+  let column = FILTER_COLUMNS[type] || type;
+  const { rawQuery, parseFilters } = clickhouse;
+  const { filterQuery, cohortQuery, queryParams } = parseFilters({
+    ...filters,
+    websiteId,
+  });
+
+  let sql = '';
+  let excludeDomain = '';
+
+  if (EVENT_COLUMNS.some(item => Object.keys(filters).includes(item))) {
+    let entryExitQuery = '';
+
+    if (column === 'referrer_domain') {
+      excludeDomain = `and referrer_domain != hostname and referrer_domain != ''`;
+    }
+
+    if (type === 'entry' || type === 'exit') {
+      const aggregrate = type === 'entry' ? 'argMin' : 'argMax';
+      column = `x.${column}`;
+
+      entryExitQuery = `
+      JOIN (select visit_id,
+          ${aggregrate}(url_path, created_at) url_path
+      from website_event
+      where website_id = {websiteId:UUID}
+        and created_at between {startDate:DateTime64} and {endDate:DateTime64}
+        and event_type != 2
+      group by visit_id) x
+      ON x.visit_id = website_event.visit_id`;
+    }
+
+    sql = `
+    select ${column} x, 
+      uniq(website_event.session_id) as y
+    from website_event
+    ${cohortQuery}
+    ${entryExitQuery}
+    where website_id = {websiteId:UUID}
+      and created_at between {startDate:DateTime64} and {endDate:DateTime64}
+      and event_type != 2
+      ${excludeDomain}
+      ${filterQuery}
+    group by x
+    order by y desc
+    limit ${limit}
+    offset ${offset}
+    `;
+  } else {
+    let groupByQuery = '';
+    let columnQuery = `arrayJoin(${column})`;
+
+    if (column === 'referrer_domain') {
+      excludeDomain = `and t != ''`;
+    }
+
+    if (type === 'entry') {
+      columnQuery = `argMinMerge(entry_url)`;
+    }
+
+    if (type === 'exit') {
+      columnQuery = `argMaxMerge(exit_url)`;
+    }
+
+    if (type === 'entry' || type === 'exit') {
+      groupByQuery = 'group by s';
+    }
+
+    sql = `
+    select g.t as x,
+      uniq(s) as y
+    from (
+      select session_id s, 
+        ${columnQuery} as t
+      from website_event_stats_hourly as website_event
+      ${cohortQuery}
+      where website_id = {websiteId:UUID}
+        and created_at between {startDate:DateTime64} and {endDate:DateTime64}
+        and event_type != 2
+        ${excludeDomain}
+        ${filterQuery}
+      ${groupByQuery}) as g
+    group by x
+    order by y desc
+    limit ${limit}
+    offset ${offset}
+    `;
+  }
+
+  return rawQuery(sql, { ...queryParams, ...parameters }, FUNCTION_NAME);
+}