import { cookies } from "next/headers";
import { getMe, safe } from "./api";
import { AUTH_TOKEN_COOKIE } from "./config";
import { reassembleChunkedCookie } from "./authUser";
import type { AuthUser } from "./types";

export { displayName, isAdmin } from "./authUser";

// Server-side "am I logged in" check for the header/account menu. Reads the
// cookie the customer dashboard writes on login (see AUTH_TOKEN_COOKIE in
// config.ts and AI_PROMPT.md "Shared login") — this storefront never issues
// it. Resolves to null whenever the cookie is absent or /auth/me fails —
// never throws, so a missing session degrades to the anonymous view.
export async function getSession(): Promise<AuthUser | null> {
  const store = await cookies();
  const raw = reassembleChunkedCookie((name) => store.get(name)?.value, AUTH_TOKEN_COOKIE);
  if (!raw) return null;
  const token = decodeURIComponent(raw);

  const result = await safe(getMe(token), null);
  return result?.user ?? null;
}