chore: add wip analytics to nuxt

Author: posva

packages/nuxt/src/runtime/analytics/composables.ts

@@ -0,0 +1,12 @@
+import { getAnalytics } from 'firebase/analytics'
+import { useFirebaseApp } from '../app/composables'
+
+/**
+ * Retrieves the Firebase analytics instance. **Returns `null` on the server** and when the platform isn't supported.
+ *
+ * @param name - name of the application
+ * @returns the Analytics instance
+ */
+export function useAnalytics() {
+  return process.client ? getAnalytics(useFirebaseApp()) : null
+}

packages/nuxt/src/runtime/analytics/plugin.client.ts

@@ -0,0 +1,22 @@
+import type { FirebaseApp } from 'firebase/app'
+import { isSupported, initializeAnalytics } from 'firebase/analytics'
+import { defineNuxtPlugin, useAppConfig } from '#app'
+
+/**
+ * Plugin to initialize the analytics module.
+ * @experimental: NOT YET RELEASED
+ */
+export default defineNuxtPlugin(async (nuxtApp) => {
+  const appConfig = useAppConfig()
+  // @ts-expect-error: not implemented yet
+  const options = appConfig.vuefireOptions.analytics
+  const firebaseApp = nuxtApp.$firebaseApp as FirebaseApp
+
+  if (await isSupported()) {
+    initializeAnalytics(firebaseApp, options)
+  } else {
+    console.info(
+      '[nuxt-vuefire]: Firebase Analytics is not supported on this platform.'
+    )
+  }
+})