import { PaymentRequestUpdateOptions } from '@stripe/stripe-js';
import { PaymentMethod, PaymentRequestButtonElement, DigitalWalletsOptions, Environment, CanMakePaymentResult, SupportedCountries } from '../../types';
export declare class DigitalWallets {
    private environment;
    private stripe?;
    private digitalWalletsOptions?;
    private paymentEvent?;
    private paymentRequest?;
    private defaultPaymentRequestOptions;
    canMakePayment: CanMakePaymentResult | null;
    paymentButton?: PaymentRequestButtonElement;
    constructor(environment?: Environment);
    /**
     * Initializes a digital wallet's payment request so that a `DigitalWallets` button can be created.
     *
     * @param options Digital wallets options containing style and payment request options.
     * @example
     * HTML
     * <div data-olo-pay-payment-button></div>
     *
     * @example
     * JS
     * const digitalWallets = new DigitalWallets();
     * await digitalWallets.initialize(options);
     *
     * // Will return an object of { applePay: false, googlePay: false }
     * const canMakePayment = digitalWallets.canMakePayment;
     */
    initialize(options: DigitalWalletsOptions): Promise<void>;
    /**
     * Appends a `Stripe Elements` Payment Request Button to an element marked with a matching `data-olo-pay-payment-button` attribute.
     * @param callback Function to execute after the payment is submitted in the digital wallets payment sheet.
     *
     * @example
     * HTML
     * <div data-olo-pay-payment-button></div>
     *
     * @example
     * JS
     * const digitalWallets = new DigitalWallets();
     * await digitalWallets.initialize(options);
     * digitalWallets.mountButton(callback);
     */
    mountButton(callback: (paymentMethod: PaymentMethod) => void, target?: string | HTMLElement): void;
    /**
     * Initiates a payment by showing the Google Pay or Apple Pay payment sheet.
     * This can be triggered when using a custom payment button,
     * or in scenarios where preventing the default 'click' event behavior is necessary
     * (i.e. proper form validation prior to initiating the payment).
     *
     * @example
     * const digitalWallets = new DigitalWallets();
     * await digitalWallets.initialize(options);
     *
     * digitalWallets.paymentButton.on('click', (event) => {
     *  event.preventDefault();
     *
     *  // Launch payment sheet if form is valid
     *  if (formIsValid) {
     *    dw.initiatePayment();
     *  }
     * });
     */
    initiatePayment(): void;
    /**
     * Determines which digital wallets are available in the current browser context.
     *
     * @example
     * const canRenderButton = await digitalWallets.canRenderButton();
     * if (canRenderButton && (canRenderButton.applePay || canRenderButton.googlePay)) {
     *  // Do something
     * }
     */
    canRenderButton(country?: SupportedCountries): Promise<CanMakePaymentResult | null>;
    /**
     * Updates payment details to be reflected on the payment sheet
     */
    updatePaymentDetails(options: PaymentRequestUpdateOptions): void;
    /**
     * Completes the pending payment event to close the active payment sheet
     */
    completePaymentEvent(): void;
    /**
     * Fails the pending payment event
     */
    failPaymentEvent(): void;
    /**
     * Removes the element from the DOM and destroys it.
     * A destroyed element can not be re-activated or re-mounted to the DOM.
     */
    destroy(): void;
    /**
     * Unmounts the element from the DOM. Call element.mount to re-attach it to the DOM.
     */
    unmount(): void;
}
declare global {
    interface Window {
        PaymentRequest: any;
    }
}