import type { ConnectionStatus, GrantPayload } from "../core/types.js";
/** Configuration for the {@link useVanaConnect} hook. */
export interface UseVanaConnectConfig {
    /** Polling interval in milliseconds (default: 2000). */
    pollingInterval?: number;
    /** SDK environment (`"dev"` or `"prod"`). Defaults to `"prod"`. */
    environment?: "dev" | "prod";
}
/** Return value of the {@link useVanaConnect} hook. */
export interface UseVanaConnectResult {
    /** Starts polling the Session Relay for the given session. */
    connect: (params: {
        sessionId: string;
        connectUrl?: string;
    }) => void;
    /** Current connection status. */
    status: ConnectionStatus;
    /** Grant payload after user approval, or `null`. */
    grant: GrantPayload | null;
    /** Error message, or `null`. */
    error: string | null;
    /** URL to account.vana.org where the user signs in and launches Data Connect, or `null`. */
    connectUrl: string | null;
    /** Resets all state back to idle and stops polling. */
    reset: () => void;
}
/**
 * @deprecated For current Account browser approval, use `useDirectVanaConnect`
 * from `@opendatalabs/vana-sdk/react`. This hook uses legacy Session Relay.
 *
 * React hook that polls the Session Relay and manages connection state.
 *
 * Call `connect()` with a session ID (from your server's `/api/connect` route)
 * to begin polling. The hook will update `status` through the lifecycle:
 * `idle` -> `connecting` -> `waiting` -> `approved` | `denied` | `expired` | `error`.
 *
 * @param config - Optional configuration for polling interval and environment.
 * @returns A {@link UseVanaConnectResult} with state and actions.
 *
 * @example
 * ```tsx
 * const { connect, status, grant, connectUrl } = useVanaConnect();
 *
 * useEffect(() => {
 *   connect({ sessionId: "sess-123" });
 * }, []);
 *
 * if (status === "waiting") return <a href={connectUrl!}>Open Vana</a>;
 * if (status === "approved") return <p>Connected! Grant: {grant!.grantId}</p>;
 * ```
 */
export declare function useVanaConnect(config?: UseVanaConnectConfig): UseVanaConnectResult;
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