import { PMTGatewayConfig, CreatePaymentIntentRequest, PaymentIntent, PaymentWidgetConfig } from '../types';
import { PaymentWidget } from '../components/payment-widget';
export declare class PMTGateway {
    private config;
    private apiClient;
    private walletAuth;
    constructor(config: PMTGatewayConfig);
    createPaymentIntent(request: CreatePaymentIntentRequest): Promise<PaymentIntent>;
    getPaymentIntent(id: string): Promise<PaymentIntent>;
    cancelPaymentIntent(id: string): Promise<PaymentIntent>;
    getSupportedWallets(): Promise<import("../types").SupportedWallet[]>;
    getSupportedChains(): Promise<{
        id: string;
        name: string;
        rpcUrl: string;
        ss58Format: number;
        decimals: number;
        symbol: string;
    }[]>;
    connectWallet(walletId: string): Promise<import("../types").WalletConnection>;
    authenticateWallet(merchantId: string, chainId?: string): Promise<string>;
    getCurrentConnection(): import("../types").WalletConnection | null;
    disconnectWallet(): void;
    createPaymentWidget(config: PaymentWidgetConfig): PaymentWidget;
    static create(config: PMTGatewayConfig): PMTGateway;
    formatAmount(amount: number, currency: string): string;
    formatDOTAmount(amount: string): string;
    on(event: string, handler: Function): void;
    off(event: string, handler: Function): void;
}
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