import { EventEmitter } from "node:events";
const emitter = new EventEmitter();
/**
* Wait for the user to authenticate through the MCP App UI.
* Resolves when `notifyAuth()` is called (after successful login/MFA).
* Rejects after timeout if the user doesn't complete login.
*/
export function waitForAuth(timeoutMs = 300_000): Promise<void> {
return new Promise((resolve, reject) => {
const timer = setTimeout(() => {
emitter.removeListener("authenticated", onAuth);
reject(new Error("Authentication timed out"));
}, timeoutMs);
function onAuth() {
clearTimeout(timer);
resolve();
}
emitter.once("authenticated", onAuth);
});
}
/**
* Signal that authentication completed successfully.
* Called by the login/MFA tool handlers after a successful auth flow.
*/
export function notifyAuth(): void {
emitter.emit("authenticated");
}
