Ghost/ghost/members-events-service/lib/last-seen-at-updater.js
Thibaut Patel bc5b8109e6 Moved the last-seen-at-updater to use the publication timezone
refs https://github.com/TryGhost/Team/issues/1306

- This removes the limitation described in commit ff46449ad6
- The only edge case is that when a publication changes their timezone, it will have maximum 24 hours where the member last_seen_at could be incorrect
2022-03-01 10:28:45 +01:00

54 lines
2.2 KiB
JavaScript

const DomainEvents = require('@tryghost/domain-events');
const {MemberPageViewEvent} = require('@tryghost/member-events');
const moment = require('moment-timezone');
/**
* Listen for `MemberViewEvent` to update the `member.last_seen_at` timestamp
*/
class LastSeenAtUpdater {
/**
* Initializes the event subscriber
* @param {Object} deps dependencies
* @param {Object} deps.models The list of model dependencies
* @param {any} deps.models.Member The Member model
* @param {Object} deps.services The list of service dependencies
* @param {any} deps.services.settingsCache The settings service
*/
constructor({
models: {
Member
},
services: {
settingsCache
}
}) {
this._memberModel = Member;
this._settingsCacheService = settingsCache;
DomainEvents.subscribe(MemberPageViewEvent, async (event) => {
await this.updateLastSeenAt(event.data.memberId, event.data.memberLastSeenAt, event.timestamp);
});
}
/**
* Updates the member.last_seen_at field if it wasn't updated in the current UTC day yet
* Example: current time is 2022-02-28 18:00:00 UTC
* - memberLastSeenAt is 2022-02-27 23:00:00 UTC, timestamp is current time, then `last_seen_at` is set to the current time
* - memberLastSeenAt is 2022-02-28 01:00:00 UTC, timestamp is current time, then `last_seen_at` isn't changed
* @param {string} memberId The id of the member to be udpated
* @param {string} memberLastSeenAt The previous last_seen_at property value for the current member
* @param {Date} timestamp The event timestamp
*/
async updateLastSeenAt(memberId, memberLastSeenAt, timestamp) {
const timezone = this._settingsCacheService.get('timezone');
if (memberLastSeenAt === null || moment(moment.utc(timestamp).tz(timezone).startOf('day')).isAfter(moment.utc(memberLastSeenAt).tz(timezone).startOf('day'))) {
await this._memberModel.update({
last_seen_at: moment.utc(timestamp).format('YYYY-MM-DD HH:mm:ss')
}, {
id: memberId
});
}
}
}
module.exports = LastSeenAtUpdater;