1 files changed, 19 insertions, 0 deletions
diff --git a/packages/frontend/src/scripts/collapsed.ts b/packages/frontend/src/scripts/collapsed.ts
new file mode 100644
index 0000000000..1bf56f233b
--- /dev/null
+++ b/packages/frontend/src/scripts/collapsed.ts
@@ -0,0 +1,19 @@
+import * as mfm from 'mfm-js';
+import * as misskey from 'misskey-js';
+import { extractUrlFromMfm } from './extract-url-from-mfm';
+
+export function shouldCollapsed(note: misskey.entities.Note): boolean {
+	const urls = note.text ? extractUrlFromMfm(mfm.parse(note.text)) : null;
+	const collapsed = note.cw == null && note.text != null && (
+		(note.text.includes('$[x2')) ||
+		(note.text.includes('$[x3')) ||
+		(note.text.includes('$[x4')) ||
+		(note.text.includes('$[scale')) ||
+		(note.text.split('\n').length > 9) ||
+		(note.text.length > 500) ||
+		(note.files.length >= 5) ||
+		(!!urls && urls.length >= 4)
+	);
+
+	return collapsed;
+}