feat: automatic root nodes with defaults plugin

src/runtime/nuxt/plugin/defaults.ts

@@ -0,0 +1,61 @@
+import type { Organization, Person } from '@unhead/schema-org'
+import { defu } from 'defu'
+import {
+  defineNuxtPlugin,
+  defineOrganization,
+  definePerson,
+  defineWebPage,
+  defineWebSite,
+  useSchemaOrg,
+  useSiteConfig,
+  useRuntimeConfig,
+} from '#imports'
+
+export default defineNuxtPlugin({
+  name: 'nuxt-schema-org:defaults',
+  setup() {
+    const runtimeConfig = useRuntimeConfig()['nuxt-schema-org'] || useRuntimeConfig().public['nuxt-schema-org']
+    // get the head instance
+    const siteConfig = useSiteConfig()
+
+    // init vendors
+    useSchemaOrg([
+      defineWebSite({
+        name: () => siteConfig?.name || '',
+        // TODO integrate with nuxt/i18n
+        inLanguage: () => siteConfig?.currentLocale || '',
+        description: () => siteConfig?.description || '',
+      }),
+      defineWebPage(),
+    ])
+    if (runtimeConfig.identity || siteConfig.identity) {
+      const identity = runtimeConfig.identity || siteConfig.identity
+      let identityPayload: Person | Organization = {
+        name: siteConfig.name,
+        url: siteConfig.url,
+      }
+      let identityType = 'Organization'
+      if (typeof identity !== 'string') {
+        identityPayload = defu(identity, identityPayload)
+        identityType = identity.type
+      }
+      else {
+        identityType = identity
+      }
+      if (siteConfig.twitter) {
+        // without the @
+        const id = siteConfig.twitter.startsWith('@')
+          ? siteConfig.twitter.slice(1)
+          : siteConfig.twitter
+        identityPayload.sameAs = [
+          `https://twitter.com/${id}`,
+        ]
+      }
+      useSchemaOrg([
+        identityType === 'Person'
+          ? definePerson(identityPayload)
+          : defineOrganization(identityPayload),
+      ])
+    }
+  },
+})