gristlabs_grist-core/app/gen-server/lib/Usage.ts

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import {Document} from 'app/gen-server/entity/Document';
import {Organization} from 'app/gen-server/entity/Organization';
import {User} from 'app/gen-server/entity/User';
import {HomeDBManager} from 'app/gen-server/lib/HomeDBManager';
import * as log from 'app/server/lib/log';
// Frequency of logging usage information. Not something we need
// to track with much granularity.
const USAGE_PERIOD_MS = 1 * 60 * 60 * 1000; // log every 1 hour
/**
* Occasionally log usage information - number of users, orgs,
* docs, etc.
*/
export class Usage {
private _interval: NodeJS.Timeout;
private _currentOperation?: Promise<void>;
public constructor(private _dbManager: HomeDBManager) {
this._interval = setInterval(() => this.apply(), USAGE_PERIOD_MS);
// Log once at beginning, in case we roll over servers faster than
// the logging period for an extended length of time,
// and to raise the visibility of this logging step so if it gets
// slow devs notice.
this.apply();
}
/**
* Remove any scheduled operation, and wait for the current one to complete
* (if one is in progress).
*/
public async close() {
clearInterval(this._interval);
await this._currentOperation;
}
public apply() {
if (!this._currentOperation) {
this._currentOperation = this._apply()
.finally(() => this._currentOperation = undefined);
}
}
private async _apply(): Promise<void> {
try {
const manager = this._dbManager.connection.manager;
// raw count of users
const userCount = await manager.count(User);
// users who have logged in at least once
const userWithLoginCount = await manager.createQueryBuilder()
.from(User, 'users')
.where('first_login_at is not null')
.getCount();
// raw count of organizations (excluding personal orgs)
const orgCount = await manager.createQueryBuilder()
.from(Organization, 'orgs')
.where('owner_id is null')
.getCount();
// organizations with subscriptions that are in a non-terminated state
const orgInGoodStandingCount = await manager.createQueryBuilder()
.from(Organization, 'orgs')
.leftJoin('orgs.billingAccount', 'billing_accounts')
.where('owner_id is null')
.andWhere('billing_accounts.in_good_standing = true')
.getCount();
// raw count of documents
const docCount = await manager.count(Document);
log.rawInfo('activity', {
docCount,
orgCount,
orgInGoodStandingCount,
userCount,
userWithLoginCount,
});
} catch (e) {
log.warn("Error in Usage._apply", e);
}
}
}