import { FoundryPage } from "../types/index.js";
import { SystemStateAdapter } from "./base.js";
type SystemStateAdapterFactory = (page?: FoundryPage) => SystemStateAdapter;
/**
 * Registers a `SystemStateAdapter` factory for a system ID, so
 * {@link getSystemStateAdapter} can resolve it. Mirrors the
 * `registerUIAdapter` pattern in `src/ui/index.ts`.
 *
 * Use this to add support for a system that doesn't have first-class
 * `dnd5e`/`pf2e`-level support in this library, instead of relying on
 * (or working around) the dnd5e-shaped defaults.
 */
export declare function registerSystemStateAdapter(id: string, factory: SystemStateAdapterFactory): void;
/**
 * Gets a system state adapter by its ID.
 *
 * Throws for unregistered system IDs rather than silently falling back
 * to the dnd5e adapter — using dnd5e-shaped test data (currency paths,
 * HP paths, actor type) against a system with a different data schema
 * produces actors/updates that are silently wrong, not just untested.
 * Register an adapter for the system first via
 * {@link registerSystemStateAdapter}, or use `dnd5e`/`pf2e` directly.
 */
export declare function getSystemStateAdapter(id: string, page?: FoundryPage): SystemStateAdapter;
/**
 * Initializes all known system adapters to register their deprecation patterns.
 */
export declare function initAllSystems(page: FoundryPage): void;
export * from "./base.js";
export * from "./dnd5e.js";
export * from "./pf2e.js";