refactor: use single return in plugin

Author: DamianGlowala

src/runtime/plugin.ts

@@ -1,43 +1,38 @@
-import { reactive } from 'vue'
+import type { Device } from '../types'
 import generateFlags from './generateFlags'
-import { defineNuxtPlugin, useRuntimeConfig, useRequestHeaders } from '#imports'
-// https://github.com/nuxt/module-builder/issues/141
-import type {} from 'nuxt/app'
+import { defineNuxtPlugin, reactive, useRequestHeaders, useRuntimeConfig } from '#imports'
 
-export default defineNuxtPlugin((nuxtApp) => {
+export default defineNuxtPlugin(() => {
   const runtimeConfig = useRuntimeConfig()
 
-  const defaultUserAgent = runtimeConfig.public?.device?.defaultUserAgent
+  const defaultUserAgent = runtimeConfig.public.device.defaultUserAgent
 
-  // Server Side
-  if (nuxtApp.ssrContext) {
-    const headers = useRequestHeaders()
+  let flags: Device
 
-    const userAgent = headers['user-agent'] || defaultUserAgent || ''
+  if (import.meta.server) {
+    const headers = useRequestHeaders()
 
-    const flags = reactive(generateFlags(userAgent, headers))
+    const userAgent = headers['user-agent'] || defaultUserAgent
 
-    return {
-      provide: {
-        device: flags,
-      },
-    }
+    flags = reactive(generateFlags(userAgent, headers))
   }
+  else {
+    const userAgent = navigator.userAgent || defaultUserAgent
 
-  // Client Side
-  const userAgent = navigator.userAgent || defaultUserAgent || ''
-  const flags = reactive(generateFlags(userAgent))
+    flags = reactive(generateFlags(userAgent))
 
-  if (runtimeConfig.public?.device?.refreshOnResize) {
-    window.addEventListener('resize', () => {
-      setTimeout(() => {
-        const newFlags = generateFlags(navigator.userAgent || userAgent)
-        Object.entries(newFlags).forEach(([key, value]) => {
+    if (runtimeConfig.public.device.refreshOnResize) {
+      window.addEventListener('resize', () => {
+        setTimeout(() => {
+          const newFlags = generateFlags(navigator.userAgent || userAgent)
+
+          Object.entries(newFlags).forEach(([key, value]) => {
           // eslint-disable-next-line @typescript-eslint/no-explicit-any
-          (flags as any)[key] = value
-        })
-      }, 50)
-    })
+            (flags as any)[key] = value
+          })
+        }, 50)
+      })
+    }
   }
 
   return {