Ported sanity studio to Next js app

lib/sanity/schemas/singletons/utilityMenu.ts

@@ -0,0 +1,48 @@
+import {MenuIcon} from '@sanity/icons'
+import {defineType, defineField} from 'sanity'
+import { languages } from '../../languages'
+
+export default defineType({
+  name: 'utilityMenu',
+  title: 'Utility menu',
+  type: 'document',
+  icon: MenuIcon,
+  groups: [],
+  fields: [
+    defineField({
+      name: 'language',
+      type: 'string',
+      readOnly: true,
+      description: 'Language of this document.'
+      // hidden: true,
+    }),
+    defineField({
+      name: 'title',
+      type: 'string',
+      title: 'Title',
+      description: 'Menu title or designation for menu.',
+    }),
+    // Menu
+    defineField({
+      name: 'menu',
+      title: 'Menu',
+      type: 'menu',
+    })
+  ],
+  preview: {
+    select: {
+      title: 'title',
+      language: 'language'
+    },
+    prepare(selection) {
+      const {title, language} = selection;
+
+      const currentLang = languages.find(lang => lang.id === language);
+      
+      return {
+        title: `${title}`,
+        subtitle: `${currentLang ? currentLang.title : ''}`,
+      }
+    },
+  },
+})