first commit

calcom/packages/lib/server/checkRegularUsername.ts

@@ -0,0 +1,37 @@
+import slugify from "@calcom/lib/slugify";
+
+import { ProfileRepository } from "./repository/profile";
+import { isUsernameReservedDueToMigration } from "./username";
+
+export async function checkRegularUsername(_username: string, currentOrgDomain?: string | null) {
+  const isCheckingUsernameInGlobalNamespace = !currentOrgDomain;
+  const username = slugify(_username);
+
+  const premium = !!process.env.NEXT_PUBLIC_IS_E2E && username.length < 5;
+
+  const profiles = currentOrgDomain
+    ? await ProfileRepository.findManyByOrgSlugOrRequestedSlug({
+        orgSlug: currentOrgDomain,
+        usernames: [username],
+      })
+    : null;
+
+  const user = profiles?.length ? profiles[0].user : null;
+
+  if (user) {
+    return {
+      available: false as const,
+      premium,
+      message: "A user exists with that username",
+    };
+  }
+
+  const isUsernameAvailable = isCheckingUsernameInGlobalNamespace
+    ? !(await isUsernameReservedDueToMigration(username))
+    : true;
+
+  return {
+    available: isUsernameAvailable,
+    premium,
+  };
+}