don't recursively render note previews

packages/frontend/src/utility/get-self-note-ids.ts

@@ -0,0 +1,17 @@
+/*
+ * SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import type * as Misskey from 'misskey-js';
+
+/**
+ * Gets IDs of notes that are visibly the "same" as the current note.
+ * These are IDs that should not be recursively resolved when starting from the provided note as entry.
+ */
+export function getSelfNoteIds(note: Misskey.entities.Note): string[] {
+	const ids = [note.id]; // Regular note
+	if (note.renote) ids.push(note.renote.id); // Renote or quote
+	if (note.renote?.renote) ids.push(note.renote.renote.id); // Renote *of* a quote
+	return ids;
+}