stage 1

lib/auth.ts

@@ -0,0 +1,26 @@
+import { redirect } from "next/navigation";
+import { getSessionUser, type SessionUser } from "@/lib/session";
+
+export async function getCurrentUser(): Promise<SessionUser | null> {
+  return getSessionUser();
+}
+
+export async function requireUser(): Promise<SessionUser> {
+  const user = await getSessionUser();
+  if (!user) redirect("/login");
+  return user;
+}
+
+export async function requireAdmin(): Promise<SessionUser> {
+  const user = await getSessionUser();
+  if (!user) redirect("/login");
+  if (user.role !== "admin") redirect("/");
+  return user;
+}
+
+export async function requireOperator(): Promise<SessionUser> {
+  const user = await getSessionUser();
+  if (!user) redirect("/login");
+  if (user.role !== "operator") redirect("/");
+  return user;
+}