import type { Backend } from "./Backend";
import { mockBackend } from "./mock";
import { iiosBackend } from "./iios";

/**
 * Choose the BFF backend from env. Default "mock" (in-memory store). Set
 * BFF_BACKEND=iios (+ IIOS_URL etc.) to proxy the real IIOS service.
 * Importing the IIOS backend runs no network calls until a method is invoked
 * (the token is minted lazily), so the mock demo never needs IIOS present.
 */
export function getBackend(): Backend {
  return (process.env.BFF_BACKEND ?? "mock").toLowerCase() === "iios" ? iiosBackend : mockBackend;
}

export type { Backend };