import type { AuthSession } from "./AuthContext";

export const AUTH_STORAGE_KEY = "auth-session";

export function readStoredSession(): AuthSession | null {
  try {
    const raw = localStorage.getItem(AUTH_STORAGE_KEY);
    if (!raw) return null;

    return JSON.parse(raw) as AuthSession;
  } catch {
    localStorage.removeItem(AUTH_STORAGE_KEY);
    return null;
  }
}

export function storeSession(session: AuthSession) {
  localStorage.setItem(AUTH_STORAGE_KEY, JSON.stringify(session));
}

export function clearStoredSession() {
  localStorage.removeItem(AUTH_STORAGE_KEY);
}

export function getAuthAuthorizationHeader() {
  const session = readStoredSession();
  if (!session?.accessToken) return null;

  return `${session.tokenType || "Bearer"} ${session.accessToken}`;
}

export function getStoredAccessToken() {
  return readStoredSession()?.accessToken ?? null;
}