Added preview functionality for home page

app/api/preview/route.ts

@@ -0,0 +1,27 @@
+import { draftMode } from 'next/headers'
+
+export async function GET(request: Request) {
+  const { searchParams } = new URL(request.url)
+  const secret = searchParams.get('secret')
+  // const slug = searchParams.get('slug')
+  const type = searchParams.get('type')
+  const locale = searchParams.get('locale')
+
+  // Check the secret and next parameters
+  // This secret should only be known to this route handler and the CMS
+  if (secret !== process.env.SANITY_API_READ_TOKEN) {
+    return new Response('Invalid token', { status: 401 })
+  }
+
+  draftMode().enable()
+
+
+  if (type === 'home') {
+    return new Response(null, {
+        status: 307,
+        headers: {
+            Location: `/${locale}`,
+        },
+    })
+  }
+}