refactoring

Resolve #7779

packages/backend/src/remote/activitypub/kernel/add/index.ts

@@ -0,0 +1,23 @@
+import { IRemoteUser } from '@/models/entities/user';
+import { IAdd } from '../../type';
+import { resolveNote } from '../../models/note';
+import { addPinned } from '@/services/i/pin';
+
+export default async (actor: IRemoteUser, activity: IAdd): Promise<void> => {
+	if ('actor' in activity && actor.uri !== activity.actor) {
+		throw new Error('invalid actor');
+	}
+
+	if (activity.target == null) {
+		throw new Error('target is null');
+	}
+
+	if (activity.target === actor.featured) {
+		const note = await resolveNote(activity.object);
+		if (note == null) throw new Error('note not found');
+		await addPinned(actor, note.id);
+		return;
+	}
+
+	throw new Error(`unknown target: ${activity.target}`);
+};