Files
stats/apps/worker/src/jobs/events.create-session-end.ts
2024-09-22 22:31:28 +02:00

126 lines
3.1 KiB
TypeScript

import type { Job } from 'bullmq';
import { last } from 'ramda';
import { getTime } from '@openpanel/common';
import {
TABLE_NAMES,
createEvent,
eventBuffer,
getEvents,
} from '@openpanel/db';
import { createLogger } from '@openpanel/logger';
import type { EventsQueuePayloadCreateSessionEnd } from '@openpanel/queue';
async function getCompleteSession({
projectId,
sessionId,
hoursInterval,
}: {
projectId: string;
sessionId: string;
hoursInterval: number;
}) {
const sql = `
SELECT * FROM ${TABLE_NAMES.events}
WHERE
session_id = '${sessionId}'
AND project_id = '${projectId}'
AND created_at > now() - interval ${hoursInterval} HOUR
ORDER BY created_at DESC
`;
return getEvents(sql);
}
export async function createSessionEnd(
job: Job<EventsQueuePayloadCreateSessionEnd>,
) {
const logger = createLogger({
name: 'job:create-session-end',
}).child({
payload: job.data.payload,
jobId: job.id,
});
const payload = job.data.payload;
const eventsInBuffer = await eventBuffer.findMany(
(item) => item.session_id === payload.sessionId,
);
let eventsInDb = await getCompleteSession({
projectId: payload.projectId,
sessionId: payload.sessionId,
hoursInterval: 12,
});
// If session_start does not exist, try to find it the last 24 hours
if (!eventsInDb.find((event) => event.name === 'session_start')) {
logger.warn('Checking last 24 hours for session_start');
eventsInDb = await getCompleteSession({
projectId: payload.projectId,
sessionId: payload.sessionId,
hoursInterval: 24,
});
}
// 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);
let sessionStart = events.find((event) => event.name === 'session_start');
const lastEvent = events[0];
const screenViews = events.filter((event) => event.name === 'screen_view');
if (!sessionStart) {
const firstScreenView = last(screenViews);
if (!firstScreenView) {
throw new Error('Could not found session_start or any screen_view');
}
logger.warn('Creating session_start since it was not found');
sessionStart = {
...firstScreenView,
name: 'session_start',
createdAt: new Date(getTime(firstScreenView.createdAt) - 100),
};
await createEvent(sessionStart);
}
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),
});
}