Erste brauchbare Version

lib/preview.ts

@@ -0,0 +1,35 @@
+import { cookies, headers } from 'next/headers';
+import { getPayload, type Where } from 'payload';
+import config from '@payload-config';
+
+
+export async function getPreview() {
+	const cookieStore = await cookies();
+
+	let isPreview = cookieStore.get('payload-preview')?.value !== undefined;
+
+	if (isPreview) {
+		const payload = await getPayload({ config });
+
+		const headersList = await headers();
+
+		const { user } = await payload.auth({
+			headers: headersList
+		});
+		
+		if (!user)
+			isPreview = false;
+	}
+
+	const where: Where  = {};
+
+	if (!isPreview)
+		where._status = {
+			equals: 'published'
+		};
+
+	return {
+		isPreview,
+		where
+	};
+};