/**
 * W3C Payment Handler API client for Motor Payment Gateway
 *
 * @packageDocumentation
 */
import type { PaymentInstrument, PaymentMethod, PaymentRequestEvent, PaymentHandlerResponse, CanMakePaymentRequest, CanMakePaymentResponse, ProcessPaymentRequest, ProcessPaymentResponse, ValidatePaymentMethodRequest, ValidatePaymentMethodResponse, PaymentStatus, RefundPaymentRequest, RefundPaymentResponse, MotorServiceWorkerConfig } from './types.js';
/**
 * Payment Gateway client for Motor service worker
 */
export declare class PaymentGatewayClient {
    private readonly baseUrl;
    private readonly config;
    constructor(config?: MotorServiceWorkerConfig);
    /**
     * Make an API request to the payment gateway
     */
    private request;
    /**
     * Get available payment instruments
     */
    getPaymentInstruments(): Promise<PaymentInstrument[]>;
    /**
     * Check if payment can be made with given methods
     */
    canMakePayment(request: CanMakePaymentRequest): Promise<CanMakePaymentResponse>;
    /**
     * Handle W3C Payment Request Event
     */
    handlePaymentRequest(event: PaymentRequestEvent): Promise<PaymentHandlerResponse>;
    /**
     * Process a payment transaction
     */
    processPayment(request: ProcessPaymentRequest): Promise<ProcessPaymentResponse>;
    /**
     * Validate a payment method
     */
    validatePaymentMethod(request: ValidatePaymentMethodRequest): Promise<ValidatePaymentMethodResponse>;
    /**
     * Get payment status by ID
     */
    getPaymentStatus(paymentId: string): Promise<PaymentStatus>;
    /**
     * Process a refund
     */
    refundPayment(request: RefundPaymentRequest): Promise<RefundPaymentResponse>;
}
/**
 * W3C Payment Handler implementation for Motor
 */
export declare class MotorPaymentHandler {
    private client;
    private registered;
    constructor(config?: MotorServiceWorkerConfig);
    /**
     * Register the payment handler with the browser
     */
    register(): Promise<void>;
    /**
     * Unregister all payment instruments
     */
    unregister(): Promise<void>;
    /**
     * Check if payment handler is registered
     */
    isRegistered(): boolean;
    /**
     * Get the payment gateway client
     */
    getClient(): PaymentGatewayClient;
}
/**
 * Payment Request builder for Motor
 */
export declare class MotorPaymentRequest {
    private methods;
    private details;
    private options;
    /**
     * Add a payment method
     */
    addMethod(method: PaymentMethod): this;
    /**
     * Set payment details
     */
    setDetails(details: any): this;
    /**
     * Set payment options
     */
    setOptions(options: PaymentOptions): this;
    /**
     * Build and show the payment request
     */
    show(): Promise<PaymentResponse>;
    /**
     * Create a payment request for a simple transaction
     */
    static simple(amount: number, currency: string, label: string, methods?: PaymentMethod[]): MotorPaymentRequest;
}
/**
 * Create a payment gateway client
 */
export declare function createPaymentGatewayClient(config?: MotorServiceWorkerConfig): PaymentGatewayClient;
/**
 * Create a payment handler
 */
export declare function createPaymentHandler(config?: MotorServiceWorkerConfig): MotorPaymentHandler;
/**
 * Check if Payment Handler API is supported
 */
export declare function isPaymentHandlerSupported(): boolean;
/**
 * Check if Payment Request API is supported
 */
export declare function isPaymentRequestSupported(): boolean;
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