Files
stats/apps/worker/src/jobs/events.create-session-end.ts
Carl-Gerhard Lindesvärd 492141547d improve session end
2024-07-20 16:34:31 +02:00

85 lines
2.2 KiB
TypeScript

import type { Job } from 'bullmq';
import { getTime } from '@openpanel/common';
import {
createEvent,
eventBuffer,
getEvents,
TABLE_NAMES,
} from '@openpanel/db';
import type { EventsQueuePayloadCreateSessionEnd } from '@openpanel/queue';
export async function createSessionEnd(
job: Job<EventsQueuePayloadCreateSessionEnd>
) {
const payload = job.data.payload;
const eventsInBuffer = await eventBuffer.findMany(
(item) => item.event.session_id === payload.sessionId
);
const sql = `
SELECT * FROM ${TABLE_NAMES.events}
WHERE
session_id = '${payload.sessionId}'
${payload.projectId ? `AND project_id = '${payload.projectId}' ` : ''}
AND created_at >= (
SELECT created_at
FROM ${TABLE_NAMES.events}
WHERE
session_id = '${payload.sessionId}'
AND name = 'session_start'
${payload.projectId ? `AND project_id = '${payload.projectId}' ` : ''}
ORDER BY created_at DESC
LIMIT 1
)
ORDER BY created_at DESC
`;
job.log(sql);
const eventsInDb = await getEvents(sql);
// sort last inserted first
const events = [...eventsInBuffer, ...eventsInDb].sort(
(a, b) => new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime()
);
events.map((event, index) => {
job.log(
[
`Index: ${index}`,
`Event: ${event.name}`,
`Created: ${event.createdAt.toISOString()}`,
`DeviceId: ${event.deviceId}`,
`Profile: ${event.profileId}`,
`Path: ${event.path}`,
].join('\n')
);
});
const sessionDuration = events.reduce((acc, event) => {
return acc + event.duration;
}, 0);
const sessionStart = events.find((event) => event.name === 'session_start');
const lastEvent = events[0];
const screenViews = events.filter((event) => event.name === 'screen_view');
if (!sessionStart) {
throw new Error('Failed to find a session_start');
}
if (!lastEvent) {
throw new Error('No last event found');
}
return createEvent({
...sessionStart,
properties: {
...sessionStart.properties,
__bounce: screenViews.length <= 1,
},
name: 'session_end',
duration: sessionDuration,
path: screenViews[0]?.path ?? '',
createdAt: new Date(getTime(lastEvent?.createdAt) + 100),
});
}