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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);
}
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