import { type HttpClient } from './util/http';
import type { PaymentRequestParams, SignedRequest } from './types/request';
import type { CallbackQuery, ParsedCallback } from './types/callback';
import type { PaymentMethodList, PaymentMethodOptions } from './types/payment-method';
export interface WebToPayClientConfig {
    projectId: number;
    password: string;
    sandbox?: boolean;
    paymentUrl?: string;
    publicKeyUrl?: string;
    paymentMethodListUrl?: string;
    httpClient?: HttpClient;
}
export declare class WebToPayClient {
    private config;
    private routes;
    private requestBuilder;
    private httpClient;
    private cachedPublicKey;
    private paymentMethodProvider;
    constructor(config: WebToPayClientConfig);
    /**
     * Build a signed payment request (data + sign).
     * Synchronous — no network calls.
     */
    buildRequest(params: PaymentRequestParams): SignedRequest;
    /**
     * Build a complete payment redirect URL.
     * Synchronous — no network calls.
     */
    buildPaymentUrl(params: PaymentRequestParams): string;
    /**
     * Build a repeat payment request.
     * Synchronous — no network calls.
     */
    buildRepeatRequest(orderId: string, amount: number, currency: string): SignedRequest;
    /**
     * Validate and parse a callback from Paysera.
     * Async — may fetch the RSA public key on first call (for SS2/SS3 verification).
     */
    validateCallback(query: CallbackQuery): Promise<ParsedCallback>;
    /**
     * Validate callback and check that expected fields match.
     * Convenience method combining validation and field checking.
     */
    validateCallbackWithExpected(query: CallbackQuery, expected: Partial<ParsedCallback>): Promise<ParsedCallback>;
    /**
     * Get available payment methods from Paysera.
     * Async — fetches XML from Paysera API. Results are cached.
     */
    getPaymentMethods(options?: PaymentMethodOptions): Promise<PaymentMethodList>;
    private getSignChecker;
    private fetchPublicKey;
}
//# sourceMappingURL=client.d.ts.map