import { type ArcadeOptions } from "./space-invaders.js";
export type ArcadeMode = "never" | "ask" | "always";
export interface ArcadeOfferOptions<T> extends ArcadeOptions<T> {
    readonly outputMode: "human" | "json" | "quiet";
    readonly offerAfterMs?: number;
    readonly prompt?: string;
}
interface ArcadeQuestion {
    readonly promise: Promise<boolean>;
    readonly cancel: () => void;
}
export interface ArcadeOfferRuntime {
    readonly mode?: ArcadeMode;
    readonly stdoutIsTty?: boolean;
    readonly stdinIsTty?: boolean;
    readonly ci?: boolean;
    readonly term?: string;
    readonly columns?: number;
    readonly rows?: number;
    readonly wait?: (milliseconds: number) => Promise<void>;
    readonly ask?: (prompt: string) => ArcadeQuestion;
    readonly play?: (task: Promise<any>, options: ArcadeOptions<any>) => Promise<any>;
}
export declare function isArcadeOfferEligible(outputMode: ArcadeOfferOptions<unknown>["outputMode"], runtime?: ArcadeOfferRuntime): boolean;
export declare function offerArcadeWhileWaiting<T>(task: Promise<T>, options: ArcadeOfferOptions<T>, runtime?: ArcadeOfferRuntime): Promise<T>;
export {};