import { components } from '@amos.com/node';
import { ApplePayButtonElementProps, ConfirmPaymentResult, WalletContactRequirements, WalletCustomerCreateAttributes } from './types';
/**
 * Build the iframe `src` URL for the embedded Apple Pay button.
 */
export declare function getApplePayButtonSrc(renderToken: string): string;
/**
 * Default iframe pixel height for the Apple Pay button.
 */
export declare function getApplePayButtonInitialHeight(): string;
/**
 * Options accepted by {@link attachApplePayButtonListeners}.
 */
export type ApplePayButtonListenerOptions = WalletContactRequirements & {
    /**
     * Major-currency decimal string shown in the Apple Pay sheet
     * (e.g. `"50.00"` for $50.00). Converted to cents in
     * `paymentIntentCreateAttributes.amount`.
     */
    amount: string;
    /** A user-visible merchant name. */
    merchantName: string;
    /**
     * Painted Apple Pay button height. CSS length (e.g. `"48px"`).
     * @default "48px"
     */
    height?: string;
    /**
     * Native `<apple-pay-button>` attributes and inner style. Omitted
     * fields keep Apple's defaults (`black` / `plain` / `en-US`). The
     * button fills the iframe — size the mount slot, not the button.
     */
    buttonProps?: ApplePayButtonElementProps;
    /**
     * Called whenever the iframe asks the host page to resize it. Update
     * the iframe's `height` style here.
     */
    onHeightChange?: (height: string) => void;
    /**
     * Called once the iframe has applied the requested appearance and is
     * ready to be revealed.
     */
    onAppearanceReady?: () => void;
    /**
     * Called when the iframe posts `IFRAME_READY` (embed JS is running).
     */
    onIframeReady?: () => void;
    /**
     * Called when the buyer authorizes in the Apple Pay sheet. Create a
     * payment intent on your server, then `await confirmPayment(token)`.
     * `customerCreateAttributes` is {@link WalletCustomerCreateAttributes},
     * not Amos `CreateCustomerInput`.
     */
    onConfirm: ({ paymentIntentCreateAttributes, customerCreateAttributes, confirmPayment, }: {
        paymentIntentCreateAttributes: components["schemas"]["CreatePaymentIntentInput"];
        customerCreateAttributes: WalletCustomerCreateAttributes;
        confirmPayment: (token: string) => Promise<ConfirmPaymentResult>;
    }) => Promise<ConfirmPaymentResult>;
};
/**
 * Controller returned by {@link attachApplePayButtonListeners} and
 * {@link mountAmosApplePayButton}.
 */
export type ApplePayButtonController = {
    /**
     * Update one or more listener options without re-attaching the
     * message listener. Pass `amount` or `merchantName` to push the new
     * value into the iframe; pass `height`, `buttonProps`,
     * `phoneRequired`, or `shippingAddressRequired` to restyle the Apple
     * Pay button or change sheet contact fields.
     */
    update: (patch: Partial<ApplePayButtonListenerOptions>) => void;
    /**
     * Detach the iframe message listener.
     */
    destroy: () => void;
};
/**
 * Wire up the host-page side of the Apple Pay iframe message protocol
 * on an existing `<iframe>` element. Returns a controller for updating
 * options and tearing down the listener.
 *
 * The iframe is expected to have already been added to the DOM with the
 * correct `src` (see {@link getApplePayButtonSrc}).
 *
 * The Apple Pay button and `ApplePaySession` run inside the Amos embed
 * iframe so only Amos domains need Apple merchant registration. While
 * Apple Pay Code is open in a separate window, this host paints a
 * waiting overlay. Cancel (via {@link Message} `APPLE_PAY_CANCEL`) is
 * available until the buyer authorizes; after `CREATE_PAYMENT_INTENT`
 * the overlay switches to a completing state with no Cancel, then hides
 * when `onConfirm` settles.
 */
export declare function attachApplePayButtonListeners(iframe: HTMLIFrameElement, { height, ...options }: ApplePayButtonListenerOptions): ApplePayButtonController;