pipeline: delete unattached-media rows when authoring an event

src/pipeline.ts

@@ -1,6 +1,7 @@
 import { Conf } from '@/config.ts';
 import * as eventsDB from '@/db/events.ts';
 import { addRelays } from '@/db/relays.ts';
+import { deleteAttachedMedia } from '@/db/unattached-media.ts';
 import { findUser } from '@/db/users.ts';
 import { type Event, LRUCache } from '@/deps.ts';
 import { isEphemeralKind } from '@/kinds.ts';
@@ -27,6 +28,7 @@ async function handleEvent(event: Event): Promise<void> {
     processDeletions(event),
     trackRelays(event),
     trackHashtags(event),
+    processMedia(event, data),
     streamOut(event, data),
     broadcast(event, data),
   ]);
@@ -120,6 +122,14 @@ function trackRelays(event: Event) {
   return addRelays([...relays]);
 }
 
+/** Delete unattached media entries that are attached to the event. */
+function processMedia({ tags, pubkey }: Event, { user }: EventData) {
+  if (user) {
+    const urls = getTagSet(tags, 'media');
+    return deleteAttachedMedia(pubkey, [...urls]);
+  }
+}
+
 /** Determine if the event is being received in a timely manner. */
 const isFresh = (event: Event): boolean => eventAge(event) < Time.seconds(10);