import type { ArkmeBillingPaymentAction, ArkmeBillingOrderSnapshot, ArkmeBillingPaymentMethod, ArkmeBillingProduct, ArkmeBillingOrderStatus } from '../types.js';
export interface ArkmeCheckoutAttempt {
    productId: string;
    paymentMethod: ArkmeBillingPaymentMethod;
    clientRequestId: string;
}
type ArkmeBillingCrypto = Pick<Crypto, 'getRandomValues'> & Partial<Pick<Crypto, 'randomUUID'>>;
export declare function createBillingClientRequestId(source?: ArkmeBillingCrypto): string;
export declare function selectDefaultBillingProduct(products: ArkmeBillingProduct[]): ArkmeBillingProduct | undefined;
export declare function billingPaymentAvailable(product: ArkmeBillingProduct | undefined, paymentMethod: ArkmeBillingPaymentMethod): boolean;
export declare function activateBillingPaymentAction(action: ArkmeBillingPaymentAction | undefined, openURL: (url: string) => void): boolean;
export declare function createBillingOrderWithProcessingRetry<T>(attempt: ArkmeCheckoutAttempt, createOrder: (input: ArkmeCheckoutAttempt) => Promise<T>, wait?: (millis: number) => Promise<void>): Promise<T>;
export declare function checkoutAttempt(previous: ArkmeCheckoutAttempt | undefined, productId: string, paymentMethod: ArkmeBillingPaymentMethod, createId: () => string): ArkmeCheckoutAttempt;
export declare function checkoutAttemptAfterOrder(attempt: ArkmeCheckoutAttempt | undefined, status: ArkmeBillingOrderStatus): ArkmeCheckoutAttempt | undefined;
export type ArkmeBillingOrderScreen = ArkmeBillingOrderStatus;
export declare function billingOrderScreen(order: Pick<ArkmeBillingOrderSnapshot, 'status' | 'expiresAtMillis'>, nowMillis: number): ArkmeBillingOrderScreen;
export declare function billingQrDataUrl(content: string | undefined): string;
interface ArkmeBillingOrderPollerOptions {
    readStatus(orderId: string): Promise<ArkmeBillingOrderSnapshot>;
    onUpdate(order: ArkmeBillingOrderSnapshot): void;
    onError(error: unknown, retry: ArkmeBillingPollRetry): void;
    onExpired?(): void;
    intervalMillis?: number;
    now?: () => number;
}
export interface ArkmeBillingPollRetry {
    willRetry: boolean;
    retryInMillis?: number;
}
export declare class ArkmeBillingOrderPoller {
    private readonly options;
    private timer;
    private generation;
    private refresh;
    private readonly intervalMillis;
    private readonly now;
    constructor(options: ArkmeBillingOrderPollerOptions);
    start(orderId: string, expiresAtMillis: number, requestedIntervalMillis?: number, initialStatus?: ArkmeBillingOrderStatus): void;
    refreshNow(): void;
    stop(): void;
}
export {};
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