/**
 * The polyfill bootstrap — the ONLY non-SDK surface of the client.
 *
 * It injects the REAL SDK and the polyfill settings; afterwards the SDK-shaped
 * exports (`ng`, `useShape`, `inbox`) behave as drop-ins. This is exposed at the
 * subpath `@ng-eventually/client/polyfill` so the main entry
 * (`@ng-eventually/client`) stays a **pure, SDK-identical** surface. Everything
 * here is removed at migration.
 */

import type { NgLike, UseShapeLike, PrincipalId } from "./types";

export interface EventuallyConfig {
  /** The REAL `@ng-org/web` `ng` (injected to avoid a hard import / alias loop). */
  ng: NgLike;
  /** The REAL `@ng-org/orm` `useShape`. */
  useShape: UseShapeLike;
  /** Shared-wallet credentials — polyfill only (one wallet for everyone). */
  sharedWallet?: { name: string; secret: string };
  /** Initial current user; may also be set later via {@link setCurrentUser}. */
  currentUser?: PrincipalId;
}

let cfg: EventuallyConfig | null = null;
let currentUser: PrincipalId | null = null;

export function configure(c: EventuallyConfig): void {
  cfg = c;
  currentUser = c.currentUser ?? null;
}

/** @internal — used by the SDK-shaped wrappers to reach the injected real SDK. */
export function getConfig(): EventuallyConfig {
  if (!cfg) throw new Error("[ng-eventually] configure() must be called before use");
  return cfg;
}

/** Set the current app-level user (the polyfill's notion of "who am I"). */
export function setCurrentUser(id: PrincipalId | null): void {
  currentUser = id;
}

export function getCurrentUser(): PrincipalId | null {
  return currentUser;
}

// Capability helpers — polyfill-era surface (caps are emulated now; native at
// migration). Re-exported here so the whole polyfill API lives under /polyfill.
export { canRead, canWrite, defaultGrant, grantRead } from "./access";