Rawman/directus-extension-generate-image-previews
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feat: in-process nightly scheduler + pause at window end

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Hook registers a 15-minute schedule that starts/resumes the backfill only
inside the maintenance window (no external cron or token). The backfill
pauses when the window closes and resumes next night. UI shows paused
state and last-run errors.
This commit is contained in:
Rawman Grey 2026-10-25 14:26:49 +03:00
parent 18db52a47c
commit ee39633ad7
6 changed files with 60 additions and 8 deletions
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34
src/hook/index.ts
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@ -1,8 +1,11 @@
import { defineHook } from '@directus/extensions-sdk';
import { runBackfill } from '../lib/backfill';
import { recordOp } from '../lib/diagnostics';
import { buildRegistry, isImageType, loadCustomPresets } from '../lib/presets';
import { readSettings } from '../lib/settings';
import { readRun } from '../lib/state';
import { warmFile } from '../lib/warmer';
import { isInWindow } from '../lib/window';
interface UploadMeta {
key?: string;
@ -10,13 +13,19 @@ interface UploadMeta {
payload?: { type?: string | null; collection?: string };
}
export default defineHook(({ action }, { services, getSchema, env, logger }) => {
export default defineHook(({ action, schedule }, { services, database, getSchema, env, logger }) => {
action('files.upload', (meta) => {
void warmUpload(meta as UploadMeta).catch((error) =>
logger.error(error, 'image-previews: upload warm failed'),
);
});
schedule('*/15 * * * *', () => {
void scheduledBackfill().catch((error) =>
logger.error(error, 'image-previews: scheduled run failed'),
);
});
async function warmUpload(meta: UploadMeta): Promise<void> {
const settings = await readSettings(env);
@ -53,4 +62,27 @@ export default defineHook(({ action }, { services, getSchema, env, logger }) =>
if (settings.debug) logger.info({ fileId, summary }, 'image-previews: warmed upload');
}
async function scheduledBackfill(): Promise<void> {
const settings = await readSettings(env);
if (!settings.enabled) return;
if (!isInWindow(settings.windowStart, settings.windowEnd)) return;
const run = await readRun(env);
if (run?.running) return;
const finishedToday = run?.finishedAt
? new Date(run.finishedAt).toDateString() === new Date().toDateString()
: false;
if (finishedToday && run && run.done >= run.total) return;
logger.info('image-previews: scheduled backfill starting');
void runBackfill({ services, database, getSchema, env, logger }, {}).catch((error) =>
logger.error(error, 'image-previews: scheduled backfill failed'),
);
}
});