[feat] create own function for showName

src/index.ts

@@ -29,3 +29,4 @@ const plugin: FG_Plugin.Plugin = {
 
 export default plugin;
 export { DisplayNameMode };
+export * from './utils';

src/utils/index.ts

@@ -0,0 +1,18 @@
+import { DisplayNameMode } from '../models';
+import { useUserStore } from '@flaschengeist/api';
+
+export function showName(user: FG.User) {
+  const userStore = useUserStore();
+  switch (userStore.userSettings.display_name) {
+    case DisplayNameMode.DISPLAYNAME:
+      return user.display_name;
+    case DisplayNameMode.FIRSTNAME:
+      return user.firstname;
+    case DisplayNameMode.LASTNAME:
+      return user.lastname;
+    case DisplayNameMode.FIRSTNAME_LASTNAME:
+      return `${user.firstname} ${user.lastname}`;
+    case DisplayNameMode.LASTNAME_FIRSTNAME:
+      return `${user.lastname}, ${user.firstname}`;
+  }
+}